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Diffstat (limited to 'source/dr_libs/dr_wav.h')
| -rw-r--r-- | source/dr_libs/dr_wav.h | 8812 |
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diff --git a/source/dr_libs/dr_wav.h b/source/dr_libs/dr_wav.h deleted file mode 100644 index f490cea..0000000 --- a/source/dr_libs/dr_wav.h +++ /dev/null @@ -1,8812 +0,0 @@ -/* -WAV audio loader and writer. Choice of public domain or MIT-0. See license statements at the end of this file. -dr_wav - v0.13.15 - 2024-01-23 - -David Reid - mackron@gmail.com - -GitHub: https://github.com/mackron/dr_libs -*/ - -/* -Introduction -============ -This is a single file library. To use it, do something like the following in one .c file. - - ```c - #define DR_WAV_IMPLEMENTATION - #include "dr_wav.h" - ``` - -You can then #include this file in other parts of the program as you would with any other header file. Do something like the following to read audio data: - - ```c - drwav wav; - if (!drwav_init_file(&wav, "my_song.wav", NULL)) { - // Error opening WAV file. - } - - drwav_int32* pDecodedInterleavedPCMFrames = malloc(wav.totalPCMFrameCount * wav.channels * sizeof(drwav_int32)); - size_t numberOfSamplesActuallyDecoded = drwav_read_pcm_frames_s32(&wav, wav.totalPCMFrameCount, pDecodedInterleavedPCMFrames); - - ... - - drwav_uninit(&wav); - ``` - -If you just want to quickly open and read the audio data in a single operation you can do something like this: - - ```c - unsigned int channels; - unsigned int sampleRate; - drwav_uint64 totalPCMFrameCount; - float* pSampleData = drwav_open_file_and_read_pcm_frames_f32("my_song.wav", &channels, &sampleRate, &totalPCMFrameCount, NULL); - if (pSampleData == NULL) { - // Error opening and reading WAV file. - } - - ... - - drwav_free(pSampleData, NULL); - ``` - -The examples above use versions of the API that convert the audio data to a consistent format (32-bit signed PCM, in this case), but you can still output the -audio data in its internal format (see notes below for supported formats): - - ```c - size_t framesRead = drwav_read_pcm_frames(&wav, wav.totalPCMFrameCount, pDecodedInterleavedPCMFrames); - ``` - -You can also read the raw bytes of audio data, which could be useful if dr_wav does not have native support for a particular data format: - - ```c - size_t bytesRead = drwav_read_raw(&wav, bytesToRead, pRawDataBuffer); - ``` - -dr_wav can also be used to output WAV files. This does not currently support compressed formats. To use this, look at `drwav_init_write()`, -`drwav_init_file_write()`, etc. Use `drwav_write_pcm_frames()` to write samples, or `drwav_write_raw()` to write raw data in the "data" chunk. - - ```c - drwav_data_format format; - format.container = drwav_container_riff; // <-- drwav_container_riff = normal WAV files, drwav_container_w64 = Sony Wave64. - format.format = DR_WAVE_FORMAT_PCM; // <-- Any of the DR_WAVE_FORMAT_* codes. - format.channels = 2; - format.sampleRate = 44100; - format.bitsPerSample = 16; - drwav_init_file_write(&wav, "data/recording.wav", &format, NULL); - - ... - - drwav_uint64 framesWritten = drwav_write_pcm_frames(pWav, frameCount, pSamples); - ``` - -Note that writing to AIFF or RIFX is not supported. - -dr_wav has support for decoding from a number of different encapsulation formats. See below for details. - - -Build Options -============= -#define these options before including this file. - -#define DR_WAV_NO_CONVERSION_API - Disables conversion APIs such as `drwav_read_pcm_frames_f32()` and `drwav_s16_to_f32()`. - -#define DR_WAV_NO_STDIO - Disables APIs that initialize a decoder from a file such as `drwav_init_file()`, `drwav_init_file_write()`, etc. - -#define DR_WAV_NO_WCHAR - Disables all functions ending with `_w`. Use this if your compiler does not provide wchar.h. Not required if DR_WAV_NO_STDIO is also defined. - - -Supported Encapsulations -======================== -- RIFF (Regular WAV) -- RIFX (Big-Endian) -- AIFF (Does not currently support ADPCM) -- RF64 -- W64 - -Note that AIFF and RIFX do not support write mode, nor do they support reading of metadata. - - -Supported Encodings -=================== -- Unsigned 8-bit PCM -- Signed 12-bit PCM -- Signed 16-bit PCM -- Signed 24-bit PCM -- Signed 32-bit PCM -- IEEE 32-bit floating point -- IEEE 64-bit floating point -- A-law and u-law -- Microsoft ADPCM -- IMA ADPCM (DVI, format code 0x11) - -8-bit PCM encodings are always assumed to be unsigned. Signed 8-bit encoding can only be read with `drwav_read_raw()`. - -Note that ADPCM is not currently supported with AIFF. Contributions welcome. - - -Notes -===== -- Samples are always interleaved. -- The default read function does not do any data conversion. Use `drwav_read_pcm_frames_f32()`, `drwav_read_pcm_frames_s32()` and `drwav_read_pcm_frames_s16()` - to read and convert audio data to 32-bit floating point, signed 32-bit integer and signed 16-bit integer samples respectively. -- dr_wav will try to read the WAV file as best it can, even if it's not strictly conformant to the WAV format. -*/ - -#ifndef dr_wav_h -#define dr_wav_h - -#ifdef __cplusplus -extern "C" { -#endif - -#define DRWAV_STRINGIFY(x) #x -#define DRWAV_XSTRINGIFY(x) DRWAV_STRINGIFY(x) - -#define DRWAV_VERSION_MAJOR 0 -#define DRWAV_VERSION_MINOR 13 -#define DRWAV_VERSION_REVISION 14 -#define DRWAV_VERSION_STRING DRWAV_XSTRINGIFY(DRWAV_VERSION_MAJOR) "." DRWAV_XSTRINGIFY(DRWAV_VERSION_MINOR) "." DRWAV_XSTRINGIFY(DRWAV_VERSION_REVISION) - -#include <stddef.h> /* For size_t. */ - -/* Sized Types */ -typedef signed char drwav_int8; -typedef unsigned char drwav_uint8; -typedef signed short drwav_int16; -typedef unsigned short drwav_uint16; -typedef signed int drwav_int32; -typedef unsigned int drwav_uint32; -#if defined(_MSC_VER) && !defined(__clang__) - typedef signed __int64 drwav_int64; - typedef unsigned __int64 drwav_uint64; -#else - #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wlong-long" - #if defined(__clang__) - #pragma GCC diagnostic ignored "-Wc++11-long-long" - #endif - #endif - typedef signed long long drwav_int64; - typedef unsigned long long drwav_uint64; - #if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))) - #pragma GCC diagnostic pop - #endif -#endif -#if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__)) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(_M_ARM64) || defined(__powerpc64__) - typedef drwav_uint64 drwav_uintptr; -#else - typedef drwav_uint32 drwav_uintptr; -#endif -typedef drwav_uint8 drwav_bool8; -typedef drwav_uint32 drwav_bool32; -#define DRWAV_TRUE 1 -#define DRWAV_FALSE 0 -/* End Sized Types */ - -/* Decorations */ -#if !defined(DRWAV_API) - #if defined(DRWAV_DLL) - #if defined(_WIN32) - #define DRWAV_DLL_IMPORT __declspec(dllimport) - #define DRWAV_DLL_EXPORT __declspec(dllexport) - #define DRWAV_DLL_PRIVATE static - #else - #if defined(__GNUC__) && __GNUC__ >= 4 - #define DRWAV_DLL_IMPORT __attribute__((visibility("default"))) - #define DRWAV_DLL_EXPORT __attribute__((visibility("default"))) - #define DRWAV_DLL_PRIVATE __attribute__((visibility("hidden"))) - #else - #define DRWAV_DLL_IMPORT - #define DRWAV_DLL_EXPORT - #define DRWAV_DLL_PRIVATE static - #endif - #endif - - #if defined(DR_WAV_IMPLEMENTATION) || defined(DRWAV_IMPLEMENTATION) - #define DRWAV_API DRWAV_DLL_EXPORT - #else - #define DRWAV_API DRWAV_DLL_IMPORT - #endif - #define DRWAV_PRIVATE DRWAV_DLL_PRIVATE - #else - #define DRWAV_API extern - #define DRWAV_PRIVATE static - #endif -#endif -/* End Decorations */ - -/* Result Codes */ -typedef drwav_int32 drwav_result; -#define DRWAV_SUCCESS 0 -#define DRWAV_ERROR -1 /* A generic error. */ -#define DRWAV_INVALID_ARGS -2 -#define DRWAV_INVALID_OPERATION -3 -#define DRWAV_OUT_OF_MEMORY -4 -#define DRWAV_OUT_OF_RANGE -5 -#define DRWAV_ACCESS_DENIED -6 -#define DRWAV_DOES_NOT_EXIST -7 -#define DRWAV_ALREADY_EXISTS -8 -#define DRWAV_TOO_MANY_OPEN_FILES -9 -#define DRWAV_INVALID_FILE -10 -#define DRWAV_TOO_BIG -11 -#define DRWAV_PATH_TOO_LONG -12 -#define DRWAV_NAME_TOO_LONG -13 -#define DRWAV_NOT_DIRECTORY -14 -#define DRWAV_IS_DIRECTORY -15 -#define DRWAV_DIRECTORY_NOT_EMPTY -16 -#define DRWAV_END_OF_FILE -17 -#define DRWAV_NO_SPACE -18 -#define DRWAV_BUSY -19 -#define DRWAV_IO_ERROR -20 -#define DRWAV_INTERRUPT -21 -#define DRWAV_UNAVAILABLE -22 -#define DRWAV_ALREADY_IN_USE -23 -#define DRWAV_BAD_ADDRESS -24 -#define DRWAV_BAD_SEEK -25 -#define DRWAV_BAD_PIPE -26 -#define DRWAV_DEADLOCK -27 -#define DRWAV_TOO_MANY_LINKS -28 -#define DRWAV_NOT_IMPLEMENTED -29 -#define DRWAV_NO_MESSAGE -30 -#define DRWAV_BAD_MESSAGE -31 -#define DRWAV_NO_DATA_AVAILABLE -32 -#define DRWAV_INVALID_DATA -33 -#define DRWAV_TIMEOUT -34 -#define DRWAV_NO_NETWORK -35 -#define DRWAV_NOT_UNIQUE -36 -#define DRWAV_NOT_SOCKET -37 -#define DRWAV_NO_ADDRESS -38 -#define DRWAV_BAD_PROTOCOL -39 -#define DRWAV_PROTOCOL_UNAVAILABLE -40 -#define DRWAV_PROTOCOL_NOT_SUPPORTED -41 -#define DRWAV_PROTOCOL_FAMILY_NOT_SUPPORTED -42 -#define DRWAV_ADDRESS_FAMILY_NOT_SUPPORTED -43 -#define DRWAV_SOCKET_NOT_SUPPORTED -44 -#define DRWAV_CONNECTION_RESET -45 -#define DRWAV_ALREADY_CONNECTED -46 -#define DRWAV_NOT_CONNECTED -47 -#define DRWAV_CONNECTION_REFUSED -48 -#define DRWAV_NO_HOST -49 -#define DRWAV_IN_PROGRESS -50 -#define DRWAV_CANCELLED -51 -#define DRWAV_MEMORY_ALREADY_MAPPED -52 -#define DRWAV_AT_END -53 -/* End Result Codes */ - -/* Common data formats. */ -#define DR_WAVE_FORMAT_PCM 0x1 -#define DR_WAVE_FORMAT_ADPCM 0x2 -#define DR_WAVE_FORMAT_IEEE_FLOAT 0x3 -#define DR_WAVE_FORMAT_ALAW 0x6 -#define DR_WAVE_FORMAT_MULAW 0x7 -#define DR_WAVE_FORMAT_DVI_ADPCM 0x11 -#define DR_WAVE_FORMAT_EXTENSIBLE 0xFFFE - -/* Flags to pass into drwav_init_ex(), etc. */ -#define DRWAV_SEQUENTIAL 0x00000001 -#define DRWAV_WITH_METADATA 0x00000002 - -DRWAV_API void drwav_version(drwav_uint32* pMajor, drwav_uint32* pMinor, drwav_uint32* pRevision); -DRWAV_API const char* drwav_version_string(void); - -/* Allocation Callbacks */ -typedef struct -{ - void* pUserData; - void* (* onMalloc)(size_t sz, void* pUserData); - void* (* onRealloc)(void* p, size_t sz, void* pUserData); - void (* onFree)(void* p, void* pUserData); -} drwav_allocation_callbacks; -/* End Allocation Callbacks */ - -typedef enum -{ - drwav_seek_origin_start, - drwav_seek_origin_current -} drwav_seek_origin; - -typedef enum -{ - drwav_container_riff, - drwav_container_rifx, - drwav_container_w64, - drwav_container_rf64, - drwav_container_aiff -} drwav_container; - -typedef struct -{ - union - { - drwav_uint8 fourcc[4]; - drwav_uint8 guid[16]; - } id; - - /* The size in bytes of the chunk. */ - drwav_uint64 sizeInBytes; - - /* - RIFF = 2 byte alignment. - W64 = 8 byte alignment. - */ - unsigned int paddingSize; -} drwav_chunk_header; - -typedef struct -{ - /* - The format tag exactly as specified in the wave file's "fmt" chunk. This can be used by applications - that require support for data formats not natively supported by dr_wav. - */ - drwav_uint16 formatTag; - - /* The number of channels making up the audio data. When this is set to 1 it is mono, 2 is stereo, etc. */ - drwav_uint16 channels; - - /* The sample rate. Usually set to something like 44100. */ - drwav_uint32 sampleRate; - - /* Average bytes per second. You probably don't need this, but it's left here for informational purposes. */ - drwav_uint32 avgBytesPerSec; - - /* Block align. This is equal to the number of channels * bytes per sample. */ - drwav_uint16 blockAlign; - - /* Bits per sample. */ - drwav_uint16 bitsPerSample; - - /* The size of the extended data. Only used internally for validation, but left here for informational purposes. */ - drwav_uint16 extendedSize; - - /* - The number of valid bits per sample. When <formatTag> is equal to WAVE_FORMAT_EXTENSIBLE, <bitsPerSample> - is always rounded up to the nearest multiple of 8. This variable contains information about exactly how - many bits are valid per sample. Mainly used for informational purposes. - */ - drwav_uint16 validBitsPerSample; - - /* The channel mask. Not used at the moment. */ - drwav_uint32 channelMask; - - /* The sub-format, exactly as specified by the wave file. */ - drwav_uint8 subFormat[16]; -} drwav_fmt; - -DRWAV_API drwav_uint16 drwav_fmt_get_format(const drwav_fmt* pFMT); - - -/* -Callback for when data is read. Return value is the number of bytes actually read. - -pUserData [in] The user data that was passed to drwav_init() and family. -pBufferOut [out] The output buffer. -bytesToRead [in] The number of bytes to read. - -Returns the number of bytes actually read. - -A return value of less than bytesToRead indicates the end of the stream. Do _not_ return from this callback until -either the entire bytesToRead is filled or you have reached the end of the stream. -*/ -typedef size_t (* drwav_read_proc)(void* pUserData, void* pBufferOut, size_t bytesToRead); - -/* -Callback for when data is written. Returns value is the number of bytes actually written. - -pUserData [in] The user data that was passed to drwav_init_write() and family. -pData [out] A pointer to the data to write. -bytesToWrite [in] The number of bytes to write. - -Returns the number of bytes actually written. - -If the return value differs from bytesToWrite, it indicates an error. -*/ -typedef size_t (* drwav_write_proc)(void* pUserData, const void* pData, size_t bytesToWrite); - -/* -Callback for when data needs to be seeked. - -pUserData [in] The user data that was passed to drwav_init() and family. -offset [in] The number of bytes to move, relative to the origin. Will never be negative. -origin [in] The origin of the seek - the current position or the start of the stream. - -Returns whether or not the seek was successful. - -Whether or not it is relative to the beginning or current position is determined by the "origin" parameter which will be either drwav_seek_origin_start or -drwav_seek_origin_current. -*/ -typedef drwav_bool32 (* drwav_seek_proc)(void* pUserData, int offset, drwav_seek_origin origin); - -/* -Callback for when drwav_init_ex() finds a chunk. - -pChunkUserData [in] The user data that was passed to the pChunkUserData parameter of drwav_init_ex() and family. -onRead [in] A pointer to the function to call when reading. -onSeek [in] A pointer to the function to call when seeking. -pReadSeekUserData [in] The user data that was passed to the pReadSeekUserData parameter of drwav_init_ex() and family. -pChunkHeader [in] A pointer to an object containing basic header information about the chunk. Use this to identify the chunk. -container [in] Whether or not the WAV file is a RIFF or Wave64 container. If you're unsure of the difference, assume RIFF. -pFMT [in] A pointer to the object containing the contents of the "fmt" chunk. - -Returns the number of bytes read + seeked. - -To read data from the chunk, call onRead(), passing in pReadSeekUserData as the first parameter. Do the same for seeking with onSeek(). The return value must -be the total number of bytes you have read _plus_ seeked. - -Use the `container` argument to discriminate the fields in `pChunkHeader->id`. If the container is `drwav_container_riff` or `drwav_container_rf64` you should -use `id.fourcc`, otherwise you should use `id.guid`. - -The `pFMT` parameter can be used to determine the data format of the wave file. Use `drwav_fmt_get_format()` to get the sample format, which will be one of the -`DR_WAVE_FORMAT_*` identifiers. - -The read pointer will be sitting on the first byte after the chunk's header. You must not attempt to read beyond the boundary of the chunk. -*/ -typedef drwav_uint64 (* drwav_chunk_proc)(void* pChunkUserData, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pReadSeekUserData, const drwav_chunk_header* pChunkHeader, drwav_container container, const drwav_fmt* pFMT); - - -/* Structure for internal use. Only used for loaders opened with drwav_init_memory(). */ -typedef struct -{ - const drwav_uint8* data; - size_t dataSize; - size_t currentReadPos; -} drwav__memory_stream; - -/* Structure for internal use. Only used for writers opened with drwav_init_memory_write(). */ -typedef struct -{ - void** ppData; - size_t* pDataSize; - size_t dataSize; - size_t dataCapacity; - size_t currentWritePos; -} drwav__memory_stream_write; - -typedef struct -{ - drwav_container container; /* RIFF, W64. */ - drwav_uint32 format; /* DR_WAVE_FORMAT_* */ - drwav_uint32 channels; - drwav_uint32 sampleRate; - drwav_uint32 bitsPerSample; -} drwav_data_format; - -typedef enum -{ - drwav_metadata_type_none = 0, - - /* - Unknown simply means a chunk that drwav does not handle specifically. You can still ask to - receive these chunks as metadata objects. It is then up to you to interpret the chunk's data. - You can also write unknown metadata to a wav file. Be careful writing unknown chunks if you - have also edited the audio data. The unknown chunks could represent offsets/sizes that no - longer correctly correspond to the audio data. - */ - drwav_metadata_type_unknown = 1 << 0, - - /* Only 1 of each of these metadata items are allowed in a wav file. */ - drwav_metadata_type_smpl = 1 << 1, - drwav_metadata_type_inst = 1 << 2, - drwav_metadata_type_cue = 1 << 3, - drwav_metadata_type_acid = 1 << 4, - drwav_metadata_type_bext = 1 << 5, - - /* - Wav files often have a LIST chunk. This is a chunk that contains a set of subchunks. For this - higher-level metadata API, we don't make a distinction between a regular chunk and a LIST - subchunk. Instead, they are all just 'metadata' items. - - There can be multiple of these metadata items in a wav file. - */ - drwav_metadata_type_list_label = 1 << 6, - drwav_metadata_type_list_note = 1 << 7, - drwav_metadata_type_list_labelled_cue_region = 1 << 8, - - drwav_metadata_type_list_info_software = 1 << 9, - drwav_metadata_type_list_info_copyright = 1 << 10, - drwav_metadata_type_list_info_title = 1 << 11, - drwav_metadata_type_list_info_artist = 1 << 12, - drwav_metadata_type_list_info_comment = 1 << 13, - drwav_metadata_type_list_info_date = 1 << 14, - drwav_metadata_type_list_info_genre = 1 << 15, - drwav_metadata_type_list_info_album = 1 << 16, - drwav_metadata_type_list_info_tracknumber = 1 << 17, - - /* Other type constants for convenience. */ - drwav_metadata_type_list_all_info_strings = drwav_metadata_type_list_info_software - | drwav_metadata_type_list_info_copyright - | drwav_metadata_type_list_info_title - | drwav_metadata_type_list_info_artist - | drwav_metadata_type_list_info_comment - | drwav_metadata_type_list_info_date - | drwav_metadata_type_list_info_genre - | drwav_metadata_type_list_info_album - | drwav_metadata_type_list_info_tracknumber, - - drwav_metadata_type_list_all_adtl = drwav_metadata_type_list_label - | drwav_metadata_type_list_note - | drwav_metadata_type_list_labelled_cue_region, - - drwav_metadata_type_all = -2, /*0xFFFFFFFF & ~drwav_metadata_type_unknown,*/ - drwav_metadata_type_all_including_unknown = -1 /*0xFFFFFFFF,*/ -} drwav_metadata_type; - -/* -Sampler Metadata - -The sampler chunk contains information about how a sound should be played in the context of a whole -audio production, and when used in a sampler. See https://en.wikipedia.org/wiki/Sample-based_synthesis. -*/ -typedef enum -{ - drwav_smpl_loop_type_forward = 0, - drwav_smpl_loop_type_pingpong = 1, - drwav_smpl_loop_type_backward = 2 -} drwav_smpl_loop_type; - -typedef struct -{ - /* The ID of the associated cue point, see drwav_cue and drwav_cue_point. As with all cue point IDs, this can correspond to a label chunk to give this loop a name, see drwav_list_label_or_note. */ - drwav_uint32 cuePointId; - - /* See drwav_smpl_loop_type. */ - drwav_uint32 type; - - /* The byte offset of the first sample to be played in the loop. */ - drwav_uint32 firstSampleByteOffset; - - /* The byte offset into the audio data of the last sample to be played in the loop. */ - drwav_uint32 lastSampleByteOffset; - - /* A value to represent that playback should occur at a point between samples. This value ranges from 0 to UINT32_MAX. Where a value of 0 means no fraction, and a value of (UINT32_MAX / 2) would mean half a sample. */ - drwav_uint32 sampleFraction; - - /* Number of times to play the loop. 0 means loop infinitely. */ - drwav_uint32 playCount; -} drwav_smpl_loop; - -typedef struct -{ - /* IDs for a particular MIDI manufacturer. 0 if not used. */ - drwav_uint32 manufacturerId; - drwav_uint32 productId; - - /* The period of 1 sample in nanoseconds. */ - drwav_uint32 samplePeriodNanoseconds; - - /* The MIDI root note of this file. 0 to 127. */ - drwav_uint32 midiUnityNote; - - /* The fraction of a semitone up from the given MIDI note. This is a value from 0 to UINT32_MAX, where 0 means no change and (UINT32_MAX / 2) is half a semitone (AKA 50 cents). */ - drwav_uint32 midiPitchFraction; - - /* Data relating to SMPTE standards which are used for syncing audio and video. 0 if not used. */ - drwav_uint32 smpteFormat; - drwav_uint32 smpteOffset; - - /* drwav_smpl_loop loops. */ - drwav_uint32 sampleLoopCount; - - /* Optional sampler-specific data. */ - drwav_uint32 samplerSpecificDataSizeInBytes; - - drwav_smpl_loop* pLoops; - drwav_uint8* pSamplerSpecificData; -} drwav_smpl; - -/* -Instrument Metadata - -The inst metadata contains data about how a sound should be played as part of an instrument. This -commonly read by samplers. See https://en.wikipedia.org/wiki/Sample-based_synthesis. -*/ -typedef struct -{ - drwav_int8 midiUnityNote; /* The root note of the audio as a MIDI note number. 0 to 127. */ - drwav_int8 fineTuneCents; /* -50 to +50 */ - drwav_int8 gainDecibels; /* -64 to +64 */ - drwav_int8 lowNote; /* 0 to 127 */ - drwav_int8 highNote; /* 0 to 127 */ - drwav_int8 lowVelocity; /* 1 to 127 */ - drwav_int8 highVelocity; /* 1 to 127 */ -} drwav_inst; - -/* -Cue Metadata - -Cue points are markers at specific points in the audio. They often come with an associated piece of -drwav_list_label_or_note metadata which contains the text for the marker. -*/ -typedef struct -{ - /* Unique identification value. */ - drwav_uint32 id; - - /* Set to 0. This is only relevant if there is a 'playlist' chunk - which is not supported by dr_wav. */ - drwav_uint32 playOrderPosition; - - /* Should always be "data". This represents the fourcc value of the chunk that this cue point corresponds to. dr_wav only supports a single data chunk so this should always be "data". */ - drwav_uint8 dataChunkId[4]; - - /* Set to 0. This is only relevant if there is a wave list chunk. dr_wav, like lots of readers/writers, do not support this. */ - drwav_uint32 chunkStart; - - /* Set to 0 for uncompressed formats. Else the last byte in compressed wave data where decompression can begin to find the value of the corresponding sample value. */ - drwav_uint32 blockStart; - - /* For uncompressed formats this is the byte offset of the cue point into the audio data. For compressed formats this is relative to the block specified with blockStart. */ - drwav_uint32 sampleByteOffset; -} drwav_cue_point; - -typedef struct -{ - drwav_uint32 cuePointCount; - drwav_cue_point *pCuePoints; -} drwav_cue; - -/* -Acid Metadata - -This chunk contains some information about the time signature and the tempo of the audio. -*/ -typedef enum -{ - drwav_acid_flag_one_shot = 1, /* If this is not set, then it is a loop instead of a one-shot. */ - drwav_acid_flag_root_note_set = 2, - drwav_acid_flag_stretch = 4, - drwav_acid_flag_disk_based = 8, - drwav_acid_flag_acidizer = 16 /* Not sure what this means. */ -} drwav_acid_flag; - -typedef struct -{ - /* A bit-field, see drwav_acid_flag. */ - drwav_uint32 flags; - - /* Valid if flags contains drwav_acid_flag_root_note_set. It represents the MIDI root note the file - a value from 0 to 127. */ - drwav_uint16 midiUnityNote; - - /* Reserved values that should probably be ignored. reserved1 seems to often be 128 and reserved2 is 0. */ - drwav_uint16 reserved1; - float reserved2; - - /* Number of beats. */ - drwav_uint32 numBeats; - - /* The time signature of the audio. */ - drwav_uint16 meterDenominator; - drwav_uint16 meterNumerator; - - /* Beats per minute of the track. Setting a value of 0 suggests that there is no tempo. */ - float tempo; -} drwav_acid; - -/* -Cue Label or Note metadata - -These are 2 different types of metadata, but they have the exact same format. Labels tend to be the -more common and represent a short name for a cue point. Notes might be used to represent a longer -comment. -*/ -typedef struct -{ - /* The ID of a cue point that this label or note corresponds to. */ - drwav_uint32 cuePointId; - - /* Size of the string not including any null terminator. */ - drwav_uint32 stringLength; - - /* The string. The *init_with_metadata functions null terminate this for convenience. */ - char* pString; -} drwav_list_label_or_note; - -/* -BEXT metadata, also known as Broadcast Wave Format (BWF) - -This metadata adds some extra description to an audio file. You must check the version field to -determine if the UMID or the loudness fields are valid. -*/ -typedef struct -{ - /* - These top 3 fields, and the umid field are actually defined in the standard as a statically - sized buffers. In order to reduce the size of this struct (and therefore the union in the - metadata struct), we instead store these as pointers. - */ - char* pDescription; /* Can be NULL or a null-terminated string, must be <= 256 characters. */ - char* pOriginatorName; /* Can be NULL or a null-terminated string, must be <= 32 characters. */ - char* pOriginatorReference; /* Can be NULL or a null-terminated string, must be <= 32 characters. */ - char pOriginationDate[10]; /* ASCII "yyyy:mm:dd". */ - char pOriginationTime[8]; /* ASCII "hh:mm:ss". */ - drwav_uint64 timeReference; /* First sample count since midnight. */ - drwav_uint16 version; /* Version of the BWF, check this to see if the fields below are valid. */ - - /* - Unrestricted ASCII characters containing a collection of strings terminated by CR/LF. Each - string shall contain a description of a coding process applied to the audio data. - */ - char* pCodingHistory; - drwav_uint32 codingHistorySize; - - /* Fields below this point are only valid if the version is 1 or above. */ - drwav_uint8* pUMID; /* Exactly 64 bytes of SMPTE UMID */ - - /* Fields below this point are only valid if the version is 2 or above. */ - drwav_uint16 loudnessValue; /* Integrated Loudness Value of the file in LUFS (multiplied by 100). */ - drwav_uint16 loudnessRange; /* Loudness Range of the file in LU (multiplied by 100). */ - drwav_uint16 maxTruePeakLevel; /* Maximum True Peak Level of the file expressed as dBTP (multiplied by 100). */ - drwav_uint16 maxMomentaryLoudness; /* Highest value of the Momentary Loudness Level of the file in LUFS (multiplied by 100). */ - drwav_uint16 maxShortTermLoudness; /* Highest value of the Short-Term Loudness Level of the file in LUFS (multiplied by 100). */ -} drwav_bext; - -/* -Info Text Metadata - -There a many different types of information text that can be saved in this format. This is where -things like the album name, the artists, the year it was produced, etc are saved. See -drwav_metadata_type for the full list of types that dr_wav supports. -*/ -typedef struct -{ - /* Size of the string not including any null terminator. */ - drwav_uint32 stringLength; - - /* The string. The *init_with_metadata functions null terminate this for convenience. */ - char* pString; -} drwav_list_info_text; - -/* -Labelled Cue Region Metadata - -The labelled cue region metadata is used to associate some region of audio with text. The region -starts at a cue point, and extends for the given number of samples. -*/ -typedef struct -{ - /* The ID of a cue point that this object corresponds to. */ - drwav_uint32 cuePointId; - - /* The number of samples from the cue point forwards that should be considered this region */ - drwav_uint32 sampleLength; - - /* Four characters used to say what the purpose of this region is. */ - drwav_uint8 purposeId[4]; - - /* Unsure of the exact meanings of these. It appears to be acceptable to set them all to 0. */ - drwav_uint16 country; - drwav_uint16 language; - drwav_uint16 dialect; - drwav_uint16 codePage; - - /* Size of the string not including any null terminator. */ - drwav_uint32 stringLength; - - /* The string. The *init_with_metadata functions null terminate this for convenience. */ - char* pString; -} drwav_list_labelled_cue_region; - -/* -Unknown Metadata - -This chunk just represents a type of chunk that dr_wav does not understand. - -Unknown metadata has a location attached to it. This is because wav files can have a LIST chunk -that contains subchunks. These LIST chunks can be one of two types. An adtl list, or an INFO -list. This enum is used to specify the location of a chunk that dr_wav currently doesn't support. -*/ -typedef enum -{ - drwav_metadata_location_invalid, - drwav_metadata_location_top_level, - drwav_metadata_location_inside_info_list, - drwav_metadata_location_inside_adtl_list -} drwav_metadata_location; - -typedef struct -{ - drwav_uint8 id[4]; - drwav_metadata_location chunkLocation; - drwav_uint32 dataSizeInBytes; - drwav_uint8* pData; -} drwav_unknown_metadata; - -/* -Metadata is saved as a union of all the supported types. -*/ -typedef struct -{ - /* Determines which item in the union is valid. */ - drwav_metadata_type type; - - union - { - drwav_cue cue; - drwav_smpl smpl; - drwav_acid acid; - drwav_inst inst; - drwav_bext bext; - drwav_list_label_or_note labelOrNote; /* List label or list note. */ - drwav_list_labelled_cue_region labelledCueRegion; - drwav_list_info_text infoText; /* Any of the list info types. */ - drwav_unknown_metadata unknown; - } data; -} drwav_metadata; - -typedef struct -{ - /* A pointer to the function to call when more data is needed. */ - drwav_read_proc onRead; - - /* A pointer to the function to call when data needs to be written. Only used when the drwav object is opened in write mode. */ - drwav_write_proc onWrite; - - /* A pointer to the function to call when the wav file needs to be seeked. */ - drwav_seek_proc onSeek; - - /* The user data to pass to callbacks. */ - void* pUserData; - - /* Allocation callbacks. */ - drwav_allocation_callbacks allocationCallbacks; - - - /* Whether or not the WAV file is formatted as a standard RIFF file or W64. */ - drwav_container container; - - - /* Structure containing format information exactly as specified by the wav file. */ - drwav_fmt fmt; - - /* The sample rate. Will be set to something like 44100. */ - drwav_uint32 sampleRate; - - /* The number of channels. This will be set to 1 for monaural streams, 2 for stereo, etc. */ - drwav_uint16 channels; - - /* The bits per sample. Will be set to something like 16, 24, etc. */ - drwav_uint16 bitsPerSample; - - /* Equal to fmt.formatTag, or the value specified by fmt.subFormat if fmt.formatTag is equal to 65534 (WAVE_FORMAT_EXTENSIBLE). */ - drwav_uint16 translatedFormatTag; - - /* The total number of PCM frames making up the audio data. */ - drwav_uint64 totalPCMFrameCount; - - - /* The size in bytes of the data chunk. */ - drwav_uint64 dataChunkDataSize; - - /* The position in the stream of the first data byte of the data chunk. This is used for seeking. */ - drwav_uint64 dataChunkDataPos; - - /* The number of bytes remaining in the data chunk. */ - drwav_uint64 bytesRemaining; - - /* The current read position in PCM frames. */ - drwav_uint64 readCursorInPCMFrames; - - - /* - Only used in sequential write mode. Keeps track of the desired size of the "data" chunk at the point of initialization time. Always - set to 0 for non-sequential writes and when the drwav object is opened in read mode. Used for validation. - */ - drwav_uint64 dataChunkDataSizeTargetWrite; - - /* Keeps track of whether or not the wav writer was initialized in sequential mode. */ - drwav_bool32 isSequentialWrite; - - - /* A array of metadata. This is valid after the *init_with_metadata call returns. It will be valid until drwav_uninit() is called. You can take ownership of this data with drwav_take_ownership_of_metadata(). */ - drwav_metadata* pMetadata; - drwav_uint32 metadataCount; - - - /* A hack to avoid a DRWAV_MALLOC() when opening a decoder with drwav_init_memory(). */ - drwav__memory_stream memoryStream; - drwav__memory_stream_write memoryStreamWrite; - - - /* Microsoft ADPCM specific data. */ - struct - { - drwav_uint32 bytesRemainingInBlock; - drwav_uint16 predictor[2]; - drwav_int32 delta[2]; - drwav_int32 cachedFrames[4]; /* Samples are stored in this cache during decoding. */ - drwav_uint32 cachedFrameCount; - drwav_int32 prevFrames[2][2]; /* The previous 2 samples for each channel (2 channels at most). */ - } msadpcm; - - /* IMA ADPCM specific data. */ - struct - { - drwav_uint32 bytesRemainingInBlock; - drwav_int32 predictor[2]; - drwav_int32 stepIndex[2]; - drwav_int32 cachedFrames[16]; /* Samples are stored in this cache during decoding. */ - drwav_uint32 cachedFrameCount; - } ima; - - /* AIFF specific data. */ - struct - { - drwav_bool8 isLE; /* Will be set to true if the audio data is little-endian encoded. */ - drwav_bool8 isUnsigned; /* Only used for 8-bit samples. When set to true, will be treated as unsigned. */ - } aiff; -} drwav; - - -/* -Initializes a pre-allocated drwav object for reading. - -pWav [out] A pointer to the drwav object being initialized. -onRead [in] The function to call when data needs to be read from the client. -onSeek [in] The function to call when the read position of the client data needs to move. -onChunk [in, optional] The function to call when a chunk is enumerated at initialized time. -pUserData, pReadSeekUserData [in, optional] A pointer to application defined data that will be passed to onRead and onSeek. -pChunkUserData [in, optional] A pointer to application defined data that will be passed to onChunk. -flags [in, optional] A set of flags for controlling how things are loaded. - -Returns true if successful; false otherwise. - -Close the loader with drwav_uninit(). - -This is the lowest level function for initializing a WAV file. You can also use drwav_init_file() and drwav_init_memory() -to open the stream from a file or from a block of memory respectively. - -Possible values for flags: - DRWAV_SEQUENTIAL: Never perform a backwards seek while loading. This disables the chunk callback and will cause this function - to return as soon as the data chunk is found. Any chunks after the data chunk will be ignored. - -drwav_init() is equivalent to "drwav_init_ex(pWav, onRead, onSeek, NULL, pUserData, NULL, 0);". - -The onChunk callback is not called for the WAVE or FMT chunks. The contents of the FMT chunk can be read from pWav->fmt -after the function returns. - -See also: drwav_init_file(), drwav_init_memory(), drwav_uninit() -*/ -DRWAV_API drwav_bool32 drwav_init(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_ex(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, drwav_chunk_proc onChunk, void* pReadSeekUserData, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_with_metadata(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); - -/* -Initializes a pre-allocated drwav object for writing. - -onWrite [in] The function to call when data needs to be written. -onSeek [in] The function to call when the write position needs to move. -pUserData [in, optional] A pointer to application defined data that will be passed to onWrite and onSeek. -metadata, numMetadata [in, optional] An array of metadata objects that should be written to the file. The array is not edited. You are responsible for this metadata memory and it must maintain valid until drwav_uninit() is called. - -Returns true if successful; false otherwise. - -Close the writer with drwav_uninit(). - -This is the lowest level function for initializing a WAV file. You can also use drwav_init_file_write() and drwav_init_memory_write() -to open the stream from a file or from a block of memory respectively. - -If the total sample count is known, you can use drwav_init_write_sequential(). This avoids the need for dr_wav to perform -a post-processing step for storing the total sample count and the size of the data chunk which requires a backwards seek. - -See also: drwav_init_file_write(), drwav_init_memory_write(), drwav_uninit() -*/ -DRWAV_API drwav_bool32 drwav_init_write(drwav* pWav, const drwav_data_format* pFormat, drwav_write_proc onWrite, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_write_sequential(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_write_proc onWrite, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_write_sequential_pcm_frames(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, drwav_write_proc onWrite, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_write_with_metadata(drwav* pWav, const drwav_data_format* pFormat, drwav_write_proc onWrite, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks, drwav_metadata* pMetadata, drwav_uint32 metadataCount); - -/* -Utility function to determine the target size of the entire data to be written (including all headers and chunks). - -Returns the target size in bytes. - -The metadata argument can be NULL meaning no metadata exists. - -Useful if the application needs to know the size to allocate. - -Only writing to the RIFF chunk and one data chunk is currently supported. - -See also: drwav_init_write(), drwav_init_file_write(), drwav_init_memory_write() -*/ -DRWAV_API drwav_uint64 drwav_target_write_size_bytes(const drwav_data_format* pFormat, drwav_uint64 totalFrameCount, drwav_metadata* pMetadata, drwav_uint32 metadataCount); - -/* -Take ownership of the metadata objects that were allocated via one of the init_with_metadata() function calls. The init_with_metdata functions perform a single heap allocation for this metadata. - -Useful if you want the data to persist beyond the lifetime of the drwav object. - -You must free the data returned from this function using drwav_free(). -*/ -DRWAV_API drwav_metadata* drwav_take_ownership_of_metadata(drwav* pWav); - -/* -Uninitializes the given drwav object. - -Use this only for objects initialized with drwav_init*() functions (drwav_init(), drwav_init_ex(), drwav_init_write(), drwav_init_write_sequential()). -*/ -DRWAV_API drwav_result drwav_uninit(drwav* pWav); - - -/* -Reads raw audio data. - -This is the lowest level function for reading audio data. It simply reads the given number of -bytes of the raw internal sample data. - -Consider using drwav_read_pcm_frames_s16(), drwav_read_pcm_frames_s32() or drwav_read_pcm_frames_f32() for -reading sample data in a consistent format. - -pBufferOut can be NULL in which case a seek will be performed. - -Returns the number of bytes actually read. -*/ -DRWAV_API size_t drwav_read_raw(drwav* pWav, size_t bytesToRead, void* pBufferOut); - -/* -Reads up to the specified number of PCM frames from the WAV file. - -The output data will be in the file's internal format, converted to native-endian byte order. Use -drwav_read_pcm_frames_s16/f32/s32() to read data in a specific format. - -If the return value is less than <framesToRead> it means the end of the file has been reached or -you have requested more PCM frames than can possibly fit in the output buffer. - -This function will only work when sample data is of a fixed size and uncompressed. If you are -using a compressed format consider using drwav_read_raw() or drwav_read_pcm_frames_s16/s32/f32(). - -pBufferOut can be NULL in which case a seek will be performed. -*/ -DRWAV_API drwav_uint64 drwav_read_pcm_frames(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_le(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_be(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut); - -/* -Seeks to the given PCM frame. - -Returns true if successful; false otherwise. -*/ -DRWAV_API drwav_bool32 drwav_seek_to_pcm_frame(drwav* pWav, drwav_uint64 targetFrameIndex); - -/* -Retrieves the current read position in pcm frames. -*/ -DRWAV_API drwav_result drwav_get_cursor_in_pcm_frames(drwav* pWav, drwav_uint64* pCursor); - -/* -Retrieves the length of the file. -*/ -DRWAV_API drwav_result drwav_get_length_in_pcm_frames(drwav* pWav, drwav_uint64* pLength); - - -/* -Writes raw audio data. - -Returns the number of bytes actually written. If this differs from bytesToWrite, it indicates an error. -*/ -DRWAV_API size_t drwav_write_raw(drwav* pWav, size_t bytesToWrite, const void* pData); - -/* -Writes PCM frames. - -Returns the number of PCM frames written. - -Input samples need to be in native-endian byte order. On big-endian architectures the input data will be converted to -little-endian. Use drwav_write_raw() to write raw audio data without performing any conversion. -*/ -DRWAV_API drwav_uint64 drwav_write_pcm_frames(drwav* pWav, drwav_uint64 framesToWrite, const void* pData); -DRWAV_API drwav_uint64 drwav_write_pcm_frames_le(drwav* pWav, drwav_uint64 framesToWrite, const void* pData); -DRWAV_API drwav_uint64 drwav_write_pcm_frames_be(drwav* pWav, drwav_uint64 framesToWrite, const void* pData); - -/* Conversion Utilities */ -#ifndef DR_WAV_NO_CONVERSION_API - -/* -Reads a chunk of audio data and converts it to signed 16-bit PCM samples. - -pBufferOut can be NULL in which case a seek will be performed. - -Returns the number of PCM frames actually read. - -If the return value is less than <framesToRead> it means the end of the file has been reached. -*/ -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16le(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16be(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut); - -/* Low-level function for converting unsigned 8-bit PCM samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_u8_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting signed 24-bit PCM samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_s24_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting signed 32-bit PCM samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_s32_to_s16(drwav_int16* pOut, const drwav_int32* pIn, size_t sampleCount); - -/* Low-level function for converting IEEE 32-bit floating point samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_f32_to_s16(drwav_int16* pOut, const float* pIn, size_t sampleCount); - -/* Low-level function for converting IEEE 64-bit floating point samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_f64_to_s16(drwav_int16* pOut, const double* pIn, size_t sampleCount); - -/* Low-level function for converting A-law samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_alaw_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting u-law samples to signed 16-bit PCM samples. */ -DRWAV_API void drwav_mulaw_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount); - - -/* -Reads a chunk of audio data and converts it to IEEE 32-bit floating point samples. - -pBufferOut can be NULL in which case a seek will be performed. - -Returns the number of PCM frames actually read. - -If the return value is less than <framesToRead> it means the end of the file has been reached. -*/ -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32le(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32be(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut); - -/* Low-level function for converting unsigned 8-bit PCM samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_u8_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting signed 16-bit PCM samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_s16_to_f32(float* pOut, const drwav_int16* pIn, size_t sampleCount); - -/* Low-level function for converting signed 24-bit PCM samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_s24_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting signed 32-bit PCM samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_s32_to_f32(float* pOut, const drwav_int32* pIn, size_t sampleCount); - -/* Low-level function for converting IEEE 64-bit floating point samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_f64_to_f32(float* pOut, const double* pIn, size_t sampleCount); - -/* Low-level function for converting A-law samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_alaw_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting u-law samples to IEEE 32-bit floating point samples. */ -DRWAV_API void drwav_mulaw_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount); - - -/* -Reads a chunk of audio data and converts it to signed 32-bit PCM samples. - -pBufferOut can be NULL in which case a seek will be performed. - -Returns the number of PCM frames actually read. - -If the return value is less than <framesToRead> it means the end of the file has been reached. -*/ -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32le(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut); -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32be(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut); - -/* Low-level function for converting unsigned 8-bit PCM samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_u8_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting signed 16-bit PCM samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_s16_to_s32(drwav_int32* pOut, const drwav_int16* pIn, size_t sampleCount); - -/* Low-level function for converting signed 24-bit PCM samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_s24_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting IEEE 32-bit floating point samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_f32_to_s32(drwav_int32* pOut, const float* pIn, size_t sampleCount); - -/* Low-level function for converting IEEE 64-bit floating point samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_f64_to_s32(drwav_int32* pOut, const double* pIn, size_t sampleCount); - -/* Low-level function for converting A-law samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_alaw_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount); - -/* Low-level function for converting u-law samples to signed 32-bit PCM samples. */ -DRWAV_API void drwav_mulaw_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount); - -#endif /* DR_WAV_NO_CONVERSION_API */ - - -/* High-Level Convenience Helpers */ - -#ifndef DR_WAV_NO_STDIO -/* -Helper for initializing a wave file for reading using stdio. - -This holds the internal FILE object until drwav_uninit() is called. Keep this in mind if you're caching drwav -objects because the operating system may restrict the number of file handles an application can have open at -any given time. -*/ -DRWAV_API drwav_bool32 drwav_init_file(drwav* pWav, const char* filename, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_ex(drwav* pWav, const char* filename, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_w(drwav* pWav, const wchar_t* filename, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_ex_w(drwav* pWav, const wchar_t* filename, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_with_metadata(drwav* pWav, const char* filename, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_with_metadata_w(drwav* pWav, const wchar_t* filename, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); - - -/* -Helper for initializing a wave file for writing using stdio. - -This holds the internal FILE object until drwav_uninit() is called. Keep this in mind if you're caching drwav -objects because the operating system may restrict the number of file handles an application can have open at -any given time. -*/ -DRWAV_API drwav_bool32 drwav_init_file_write(drwav* pWav, const char* filename, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_write_sequential(drwav* pWav, const char* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_pcm_frames(drwav* pWav, const char* filename, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_write_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_pcm_frames_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks); -#endif /* DR_WAV_NO_STDIO */ - -/* -Helper for initializing a loader from a pre-allocated memory buffer. - -This does not create a copy of the data. It is up to the application to ensure the buffer remains valid for -the lifetime of the drwav object. - -The buffer should contain the contents of the entire wave file, not just the sample data. -*/ -DRWAV_API drwav_bool32 drwav_init_memory(drwav* pWav, const void* data, size_t dataSize, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_memory_ex(drwav* pWav, const void* data, size_t dataSize, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_memory_with_metadata(drwav* pWav, const void* data, size_t dataSize, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks); - -/* -Helper for initializing a writer which outputs data to a memory buffer. - -dr_wav will manage the memory allocations, however it is up to the caller to free the data with drwav_free(). - -The buffer will remain allocated even after drwav_uninit() is called. The buffer should not be considered valid -until after drwav_uninit() has been called. -*/ -DRWAV_API drwav_bool32 drwav_init_memory_write(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_memory_write_sequential(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_bool32 drwav_init_memory_write_sequential_pcm_frames(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks); - - -#ifndef DR_WAV_NO_CONVERSION_API -/* -Opens and reads an entire wav file in a single operation. - -The return value is a heap-allocated buffer containing the audio data. Use drwav_free() to free the buffer. -*/ -DRWAV_API drwav_int16* drwav_open_and_read_pcm_frames_s16(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API float* drwav_open_and_read_pcm_frames_f32(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_int32* drwav_open_and_read_pcm_frames_s32(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -#ifndef DR_WAV_NO_STDIO -/* -Opens and decodes an entire wav file in a single operation. - -The return value is a heap-allocated buffer containing the audio data. Use drwav_free() to free the buffer. -*/ -DRWAV_API drwav_int16* drwav_open_file_and_read_pcm_frames_s16(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API float* drwav_open_file_and_read_pcm_frames_f32(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_int32* drwav_open_file_and_read_pcm_frames_s32(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_int16* drwav_open_file_and_read_pcm_frames_s16_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API float* drwav_open_file_and_read_pcm_frames_f32_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_int32* drwav_open_file_and_read_pcm_frames_s32_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -#endif -/* -Opens and decodes an entire wav file from a block of memory in a single operation. - -The return value is a heap-allocated buffer containing the audio data. Use drwav_free() to free the buffer. -*/ -DRWAV_API drwav_int16* drwav_open_memory_and_read_pcm_frames_s16(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API float* drwav_open_memory_and_read_pcm_frames_f32(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -DRWAV_API drwav_int32* drwav_open_memory_and_read_pcm_frames_s32(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks); -#endif - -/* Frees data that was allocated internally by dr_wav. */ -DRWAV_API void drwav_free(void* p, const drwav_allocation_callbacks* pAllocationCallbacks); - -/* Converts bytes from a wav stream to a sized type of native endian. */ -DRWAV_API drwav_uint16 drwav_bytes_to_u16(const drwav_uint8* data); -DRWAV_API drwav_int16 drwav_bytes_to_s16(const drwav_uint8* data); -DRWAV_API drwav_uint32 drwav_bytes_to_u32(const drwav_uint8* data); -DRWAV_API drwav_int32 drwav_bytes_to_s32(const drwav_uint8* data); -DRWAV_API drwav_uint64 drwav_bytes_to_u64(const drwav_uint8* data); -DRWAV_API drwav_int64 drwav_bytes_to_s64(const drwav_uint8* data); -DRWAV_API float drwav_bytes_to_f32(const drwav_uint8* data); - -/* Compares a GUID for the purpose of checking the type of a Wave64 chunk. */ -DRWAV_API drwav_bool32 drwav_guid_equal(const drwav_uint8 a[16], const drwav_uint8 b[16]); - -/* Compares a four-character-code for the purpose of checking the type of a RIFF chunk. */ -DRWAV_API drwav_bool32 drwav_fourcc_equal(const drwav_uint8* a, const char* b); - -#ifdef __cplusplus -} -#endif -#endif /* dr_wav_h */ - - -/************************************************************************************************************************************************************ - ************************************************************************************************************************************************************ - - IMPLEMENTATION - - ************************************************************************************************************************************************************ - ************************************************************************************************************************************************************/ -#if defined(DR_WAV_IMPLEMENTATION) || defined(DRWAV_IMPLEMENTATION) -#ifndef dr_wav_c -#define dr_wav_c - -#ifdef __MRC__ -/* MrC currently doesn't compile dr_wav correctly with any optimizations enabled. */ -#pragma options opt off -#endif - -#include <stdlib.h> -#include <string.h> -#include <limits.h> /* For INT_MAX */ - -#ifndef DR_WAV_NO_STDIO -#include <stdio.h> -#ifndef DR_WAV_NO_WCHAR -#include <wchar.h> -#endif -#endif - -/* Standard library stuff. */ -#ifndef DRWAV_ASSERT -#include <assert.h> -#define DRWAV_ASSERT(expression) assert(expression) -#endif -#ifndef DRWAV_MALLOC -#define DRWAV_MALLOC(sz) malloc((sz)) -#endif -#ifndef DRWAV_REALLOC -#define DRWAV_REALLOC(p, sz) realloc((p), (sz)) -#endif -#ifndef DRWAV_FREE -#define DRWAV_FREE(p) free((p)) -#endif -#ifndef DRWAV_COPY_MEMORY -#define DRWAV_COPY_MEMORY(dst, src, sz) memcpy((dst), (src), (sz)) -#endif -#ifndef DRWAV_ZERO_MEMORY -#define DRWAV_ZERO_MEMORY(p, sz) memset((p), 0, (sz)) -#endif -#ifndef DRWAV_ZERO_OBJECT -#define DRWAV_ZERO_OBJECT(p) DRWAV_ZERO_MEMORY((p), sizeof(*p)) -#endif - -#define drwav_countof(x) (sizeof(x) / sizeof(x[0])) -#define drwav_align(x, a) ((((x) + (a) - 1) / (a)) * (a)) -#define drwav_min(a, b) (((a) < (b)) ? (a) : (b)) -#define drwav_max(a, b) (((a) > (b)) ? (a) : (b)) -#define drwav_clamp(x, lo, hi) (drwav_max((lo), drwav_min((hi), (x)))) -#define drwav_offset_ptr(p, offset) (((drwav_uint8*)(p)) + (offset)) - -#define DRWAV_MAX_SIMD_VECTOR_SIZE 32 - -/* Architecture Detection */ -#if defined(__x86_64__) || defined(_M_X64) - #define DRWAV_X64 -#elif defined(__i386) || defined(_M_IX86) - #define DRWAV_X86 -#elif defined(__arm__) || defined(_M_ARM) - #define DRWAV_ARM -#endif -/* End Architecture Detection */ - -/* Inline */ -#ifdef _MSC_VER - #define DRWAV_INLINE __forceinline -#elif defined(__GNUC__) - /* - I've had a bug report where GCC is emitting warnings about functions possibly not being inlineable. This warning happens when - the __attribute__((always_inline)) attribute is defined without an "inline" statement. I think therefore there must be some - case where "__inline__" is not always defined, thus the compiler emitting these warnings. When using -std=c89 or -ansi on the - command line, we cannot use the "inline" keyword and instead need to use "__inline__". In an attempt to work around this issue - I am using "__inline__" only when we're compiling in strict ANSI mode. - */ - #if defined(__STRICT_ANSI__) - #define DRWAV_GNUC_INLINE_HINT __inline__ - #else - #define DRWAV_GNUC_INLINE_HINT inline - #endif - - #if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)) || defined(__clang__) - #define DRWAV_INLINE DRWAV_GNUC_INLINE_HINT __attribute__((always_inline)) - #else - #define DRWAV_INLINE DRWAV_GNUC_INLINE_HINT - #endif -#elif defined(__WATCOMC__) - #define DRWAV_INLINE __inline -#else - #define DRWAV_INLINE -#endif -/* End Inline */ - -/* SIZE_MAX */ -#if defined(SIZE_MAX) - #define DRWAV_SIZE_MAX SIZE_MAX -#else - #if defined(_WIN64) || defined(_LP64) || defined(__LP64__) - #define DRWAV_SIZE_MAX ((drwav_uint64)0xFFFFFFFFFFFFFFFF) - #else - #define DRWAV_SIZE_MAX 0xFFFFFFFF - #endif -#endif -/* End SIZE_MAX */ - -/* Weird bit manipulation is for C89 compatibility (no direct support for 64-bit integers). */ -#define DRWAV_INT64_MIN ((drwav_int64) ((drwav_uint64)0x80000000 << 32)) -#define DRWAV_INT64_MAX ((drwav_int64)(((drwav_uint64)0x7FFFFFFF << 32) | 0xFFFFFFFF)) - -#if defined(_MSC_VER) && _MSC_VER >= 1400 - #define DRWAV_HAS_BYTESWAP16_INTRINSIC - #define DRWAV_HAS_BYTESWAP32_INTRINSIC - #define DRWAV_HAS_BYTESWAP64_INTRINSIC -#elif defined(__clang__) - #if defined(__has_builtin) - #if __has_builtin(__builtin_bswap16) - #define DRWAV_HAS_BYTESWAP16_INTRINSIC - #endif - #if __has_builtin(__builtin_bswap32) - #define DRWAV_HAS_BYTESWAP32_INTRINSIC - #endif - #if __has_builtin(__builtin_bswap64) - #define DRWAV_HAS_BYTESWAP64_INTRINSIC - #endif - #endif -#elif defined(__GNUC__) - #if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) - #define DRWAV_HAS_BYTESWAP32_INTRINSIC - #define DRWAV_HAS_BYTESWAP64_INTRINSIC - #endif - #if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) - #define DRWAV_HAS_BYTESWAP16_INTRINSIC - #endif -#endif - -DRWAV_API void drwav_version(drwav_uint32* pMajor, drwav_uint32* pMinor, drwav_uint32* pRevision) -{ - if (pMajor) { - *pMajor = DRWAV_VERSION_MAJOR; - } - - if (pMinor) { - *pMinor = DRWAV_VERSION_MINOR; - } - - if (pRevision) { - *pRevision = DRWAV_VERSION_REVISION; - } -} - -DRWAV_API const char* drwav_version_string(void) -{ - return DRWAV_VERSION_STRING; -} - -/* -These limits are used for basic validation when initializing the decoder. If you exceed these limits, first of all: what on Earth are -you doing?! (Let me know, I'd be curious!) Second, you can adjust these by #define-ing them before the dr_wav implementation. -*/ -#ifndef DRWAV_MAX_SAMPLE_RATE -#define DRWAV_MAX_SAMPLE_RATE 384000 -#endif -#ifndef DRWAV_MAX_CHANNELS -#define DRWAV_MAX_CHANNELS 256 -#endif -#ifndef DRWAV_MAX_BITS_PER_SAMPLE -#define DRWAV_MAX_BITS_PER_SAMPLE 64 -#endif - -static const drwav_uint8 drwavGUID_W64_RIFF[16] = {0x72,0x69,0x66,0x66, 0x2E,0x91, 0xCF,0x11, 0xA5,0xD6, 0x28,0xDB,0x04,0xC1,0x00,0x00}; /* 66666972-912E-11CF-A5D6-28DB04C10000 */ -static const drwav_uint8 drwavGUID_W64_WAVE[16] = {0x77,0x61,0x76,0x65, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A}; /* 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */ -/*static const drwav_uint8 drwavGUID_W64_JUNK[16] = {0x6A,0x75,0x6E,0x6B, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A};*/ /* 6B6E756A-ACF3-11D3-8CD1-00C04F8EDB8A */ -static const drwav_uint8 drwavGUID_W64_FMT [16] = {0x66,0x6D,0x74,0x20, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A}; /* 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */ -static const drwav_uint8 drwavGUID_W64_FACT[16] = {0x66,0x61,0x63,0x74, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A}; /* 74636166-ACF3-11D3-8CD1-00C04F8EDB8A */ -static const drwav_uint8 drwavGUID_W64_DATA[16] = {0x64,0x61,0x74,0x61, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A}; /* 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */ -/*static const drwav_uint8 drwavGUID_W64_SMPL[16] = {0x73,0x6D,0x70,0x6C, 0xF3,0xAC, 0xD3,0x11, 0x8C,0xD1, 0x00,0xC0,0x4F,0x8E,0xDB,0x8A};*/ /* 6C706D73-ACF3-11D3-8CD1-00C04F8EDB8A */ - - -static DRWAV_INLINE int drwav__is_little_endian(void) -{ -#if defined(DRWAV_X86) || defined(DRWAV_X64) - return DRWAV_TRUE; -#elif defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN - return DRWAV_TRUE; -#else - int n = 1; - return (*(char*)&n) == 1; -#endif -} - - -static DRWAV_INLINE void drwav_bytes_to_guid(const drwav_uint8* data, drwav_uint8* guid) -{ - int i; - for (i = 0; i < 16; ++i) { - guid[i] = data[i]; - } -} - - -static DRWAV_INLINE drwav_uint16 drwav__bswap16(drwav_uint16 n) -{ -#ifdef DRWAV_HAS_BYTESWAP16_INTRINSIC - #if defined(_MSC_VER) - return _byteswap_ushort(n); - #elif defined(__GNUC__) || defined(__clang__) - return __builtin_bswap16(n); - #else - #error "This compiler does not support the byte swap intrinsic." - #endif -#else - return ((n & 0xFF00) >> 8) | - ((n & 0x00FF) << 8); -#endif -} - -static DRWAV_INLINE drwav_uint32 drwav__bswap32(drwav_uint32 n) -{ -#ifdef DRWAV_HAS_BYTESWAP32_INTRINSIC - #if defined(_MSC_VER) - return _byteswap_ulong(n); - #elif defined(__GNUC__) || defined(__clang__) - #if defined(DRWAV_ARM) && (defined(__ARM_ARCH) && __ARM_ARCH >= 6) && !defined(DRWAV_64BIT) /* <-- 64-bit inline assembly has not been tested, so disabling for now. */ - /* Inline assembly optimized implementation for ARM. In my testing, GCC does not generate optimized code with __builtin_bswap32(). */ - drwav_uint32 r; - __asm__ __volatile__ ( - #if defined(DRWAV_64BIT) - "rev %w[out], %w[in]" : [out]"=r"(r) : [in]"r"(n) /* <-- This is untested. If someone in the community could test this, that would be appreciated! */ - #else - "rev %[out], %[in]" : [out]"=r"(r) : [in]"r"(n) - #endif - ); - return r; - #else - return __builtin_bswap32(n); - #endif - #else - #error "This compiler does not support the byte swap intrinsic." - #endif -#else - return ((n & 0xFF000000) >> 24) | - ((n & 0x00FF0000) >> 8) | - ((n & 0x0000FF00) << 8) | - ((n & 0x000000FF) << 24); -#endif -} - -static DRWAV_INLINE drwav_uint64 drwav__bswap64(drwav_uint64 n) -{ -#ifdef DRWAV_HAS_BYTESWAP64_INTRINSIC - #if defined(_MSC_VER) - return _byteswap_uint64(n); - #elif defined(__GNUC__) || defined(__clang__) - return __builtin_bswap64(n); - #else - #error "This compiler does not support the byte swap intrinsic." - #endif -#else - /* Weird "<< 32" bitshift is required for C89 because it doesn't support 64-bit constants. Should be optimized out by a good compiler. */ - return ((n & ((drwav_uint64)0xFF000000 << 32)) >> 56) | - ((n & ((drwav_uint64)0x00FF0000 << 32)) >> 40) | - ((n & ((drwav_uint64)0x0000FF00 << 32)) >> 24) | - ((n & ((drwav_uint64)0x000000FF << 32)) >> 8) | - ((n & ((drwav_uint64)0xFF000000 )) << 8) | - ((n & ((drwav_uint64)0x00FF0000 )) << 24) | - ((n & ((drwav_uint64)0x0000FF00 )) << 40) | - ((n & ((drwav_uint64)0x000000FF )) << 56); -#endif -} - - -static DRWAV_INLINE drwav_int16 drwav__bswap_s16(drwav_int16 n) -{ - return (drwav_int16)drwav__bswap16((drwav_uint16)n); -} - -static DRWAV_INLINE void drwav__bswap_samples_s16(drwav_int16* pSamples, drwav_uint64 sampleCount) -{ - drwav_uint64 iSample; - for (iSample = 0; iSample < sampleCount; iSample += 1) { - pSamples[iSample] = drwav__bswap_s16(pSamples[iSample]); - } -} - - -static DRWAV_INLINE void drwav__bswap_s24(drwav_uint8* p) -{ - drwav_uint8 t; - t = p[0]; - p[0] = p[2]; - p[2] = t; -} - -static DRWAV_INLINE void drwav__bswap_samples_s24(drwav_uint8* pSamples, drwav_uint64 sampleCount) -{ - drwav_uint64 iSample; - for (iSample = 0; iSample < sampleCount; iSample += 1) { - drwav_uint8* pSample = pSamples + (iSample*3); - drwav__bswap_s24(pSample); - } -} - - -static DRWAV_INLINE drwav_int32 drwav__bswap_s32(drwav_int32 n) -{ - return (drwav_int32)drwav__bswap32((drwav_uint32)n); -} - -static DRWAV_INLINE void drwav__bswap_samples_s32(drwav_int32* pSamples, drwav_uint64 sampleCount) -{ - drwav_uint64 iSample; - for (iSample = 0; iSample < sampleCount; iSample += 1) { - pSamples[iSample] = drwav__bswap_s32(pSamples[iSample]); - } -} - - -static DRWAV_INLINE drwav_int64 drwav__bswap_s64(drwav_int64 n) -{ - return (drwav_int64)drwav__bswap64((drwav_uint64)n); -} - -static DRWAV_INLINE void drwav__bswap_samples_s64(drwav_int64* pSamples, drwav_uint64 sampleCount) -{ - drwav_uint64 iSample; - for (iSample = 0; iSample < sampleCount; iSample += 1) { - pSamples[iSample] = drwav__bswap_s64(pSamples[iSample]); - } -} - - -static DRWAV_INLINE float drwav__bswap_f32(float n) -{ - union { - drwav_uint32 i; - float f; - } x; - x.f = n; - x.i = drwav__bswap32(x.i); - - return x.f; -} - -static DRWAV_INLINE void drwav__bswap_samples_f32(float* pSamples, drwav_uint64 sampleCount) -{ - drwav_uint64 iSample; - for (iSample = 0; iSample < sampleCount; iSample += 1) { - pSamples[iSample] = drwav__bswap_f32(pSamples[iSample]); - } -} - - -static DRWAV_INLINE void drwav__bswap_samples(void* pSamples, drwav_uint64 sampleCount, drwav_uint32 bytesPerSample) -{ - switch (bytesPerSample) - { - case 1: - { - /* No-op. */ - } break; - case 2: - { - drwav__bswap_samples_s16((drwav_int16*)pSamples, sampleCount); - } break; - case 3: - { - drwav__bswap_samples_s24((drwav_uint8*)pSamples, sampleCount); - } break; - case 4: - { - drwav__bswap_samples_s32((drwav_int32*)pSamples, sampleCount); - } break; - case 8: - { - drwav__bswap_samples_s64((drwav_int64*)pSamples, sampleCount); - } break; - default: - { - /* Unsupported format. */ - DRWAV_ASSERT(DRWAV_FALSE); - } break; - } -} - - - -DRWAV_PRIVATE DRWAV_INLINE drwav_bool32 drwav_is_container_be(drwav_container container) -{ - if (container == drwav_container_rifx || container == drwav_container_aiff) { - return DRWAV_TRUE; - } else { - return DRWAV_FALSE; - } -} - - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint16 drwav_bytes_to_u16_le(const drwav_uint8* data) -{ - return ((drwav_uint16)data[0] << 0) | ((drwav_uint16)data[1] << 8); -} - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint16 drwav_bytes_to_u16_be(const drwav_uint8* data) -{ - return ((drwav_uint16)data[1] << 0) | ((drwav_uint16)data[0] << 8); -} - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint16 drwav_bytes_to_u16_ex(const drwav_uint8* data, drwav_container container) -{ - if (drwav_is_container_be(container)) { - return drwav_bytes_to_u16_be(data); - } else { - return drwav_bytes_to_u16_le(data); - } -} - - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint32 drwav_bytes_to_u32_le(const drwav_uint8* data) -{ - return ((drwav_uint32)data[0] << 0) | ((drwav_uint32)data[1] << 8) | ((drwav_uint32)data[2] << 16) | ((drwav_uint32)data[3] << 24); -} - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint32 drwav_bytes_to_u32_be(const drwav_uint8* data) -{ - return ((drwav_uint32)data[3] << 0) | ((drwav_uint32)data[2] << 8) | ((drwav_uint32)data[1] << 16) | ((drwav_uint32)data[0] << 24); -} - -DRWAV_PRIVATE DRWAV_INLINE drwav_uint32 drwav_bytes_to_u32_ex(const drwav_uint8* data, drwav_container container) -{ - if (drwav_is_container_be(container)) { - return drwav_bytes_to_u32_be(data); - } else { - return drwav_bytes_to_u32_le(data); - } -} - - - -DRWAV_PRIVATE drwav_int64 drwav_aiff_extented_to_s64(const drwav_uint8* data) -{ - drwav_uint32 exponent = ((drwav_uint32)data[0] << 8) | data[1]; - drwav_uint64 hi = ((drwav_uint64)data[2] << 24) | ((drwav_uint64)data[3] << 16) | ((drwav_uint64)data[4] << 8) | ((drwav_uint64)data[5] << 0); - drwav_uint64 lo = ((drwav_uint64)data[6] << 24) | ((drwav_uint64)data[7] << 16) | ((drwav_uint64)data[8] << 8) | ((drwav_uint64)data[9] << 0); - drwav_uint64 significand = (hi << 32) | lo; - int sign = exponent >> 15; - - /* Remove sign bit. */ - exponent &= 0x7FFF; - - /* Special cases. */ - if (exponent == 0 && significand == 0) { - return 0; - } else if (exponent == 0x7FFF) { - return sign ? DRWAV_INT64_MIN : DRWAV_INT64_MAX; /* Infinite. */ - } - - exponent -= 16383; - - if (exponent > 63) { - return sign ? DRWAV_INT64_MIN : DRWAV_INT64_MAX; /* Too big for a 64-bit integer. */ - } else if (exponent < 1) { - return 0; /* Number is less than 1, so rounds down to 0. */ - } - - significand >>= (63 - exponent); - - if (sign) { - return -(drwav_int64)significand; - } else { - return (drwav_int64)significand; - } -} - - -DRWAV_PRIVATE void* drwav__malloc_default(size_t sz, void* pUserData) -{ - (void)pUserData; - return DRWAV_MALLOC(sz); -} - -DRWAV_PRIVATE void* drwav__realloc_default(void* p, size_t sz, void* pUserData) -{ - (void)pUserData; - return DRWAV_REALLOC(p, sz); -} - -DRWAV_PRIVATE void drwav__free_default(void* p, void* pUserData) -{ - (void)pUserData; - DRWAV_FREE(p); -} - - -DRWAV_PRIVATE void* drwav__malloc_from_callbacks(size_t sz, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks == NULL) { - return NULL; - } - - if (pAllocationCallbacks->onMalloc != NULL) { - return pAllocationCallbacks->onMalloc(sz, pAllocationCallbacks->pUserData); - } - - /* Try using realloc(). */ - if (pAllocationCallbacks->onRealloc != NULL) { - return pAllocationCallbacks->onRealloc(NULL, sz, pAllocationCallbacks->pUserData); - } - - return NULL; -} - -DRWAV_PRIVATE void* drwav__realloc_from_callbacks(void* p, size_t szNew, size_t szOld, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks == NULL) { - return NULL; - } - - if (pAllocationCallbacks->onRealloc != NULL) { - return pAllocationCallbacks->onRealloc(p, szNew, pAllocationCallbacks->pUserData); - } - - /* Try emulating realloc() in terms of malloc()/free(). */ - if (pAllocationCallbacks->onMalloc != NULL && pAllocationCallbacks->onFree != NULL) { - void* p2; - - p2 = pAllocationCallbacks->onMalloc(szNew, pAllocationCallbacks->pUserData); - if (p2 == NULL) { - return NULL; - } - - if (p != NULL) { - DRWAV_COPY_MEMORY(p2, p, szOld); - pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData); - } - - return p2; - } - - return NULL; -} - -DRWAV_PRIVATE void drwav__free_from_callbacks(void* p, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (p == NULL || pAllocationCallbacks == NULL) { - return; - } - - if (pAllocationCallbacks->onFree != NULL) { - pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData); - } -} - - -DRWAV_PRIVATE drwav_allocation_callbacks drwav_copy_allocation_callbacks_or_defaults(const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks != NULL) { - /* Copy. */ - return *pAllocationCallbacks; - } else { - /* Defaults. */ - drwav_allocation_callbacks allocationCallbacks; - allocationCallbacks.pUserData = NULL; - allocationCallbacks.onMalloc = drwav__malloc_default; - allocationCallbacks.onRealloc = drwav__realloc_default; - allocationCallbacks.onFree = drwav__free_default; - return allocationCallbacks; - } -} - - -static DRWAV_INLINE drwav_bool32 drwav__is_compressed_format_tag(drwav_uint16 formatTag) -{ - return - formatTag == DR_WAVE_FORMAT_ADPCM || - formatTag == DR_WAVE_FORMAT_DVI_ADPCM; -} - -DRWAV_PRIVATE unsigned int drwav__chunk_padding_size_riff(drwav_uint64 chunkSize) -{ - return (unsigned int)(chunkSize % 2); -} - -DRWAV_PRIVATE unsigned int drwav__chunk_padding_size_w64(drwav_uint64 chunkSize) -{ - return (unsigned int)(chunkSize % 8); -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__msadpcm(drwav* pWav, drwav_uint64 samplesToRead, drwav_int16* pBufferOut); -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__ima(drwav* pWav, drwav_uint64 samplesToRead, drwav_int16* pBufferOut); -DRWAV_PRIVATE drwav_bool32 drwav_init_write__internal(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount); - -DRWAV_PRIVATE drwav_result drwav__read_chunk_header(drwav_read_proc onRead, void* pUserData, drwav_container container, drwav_uint64* pRunningBytesReadOut, drwav_chunk_header* pHeaderOut) -{ - if (container == drwav_container_riff || container == drwav_container_rifx || container == drwav_container_rf64 || container == drwav_container_aiff) { - drwav_uint8 sizeInBytes[4]; - - if (onRead(pUserData, pHeaderOut->id.fourcc, 4) != 4) { - return DRWAV_AT_END; - } - - if (onRead(pUserData, sizeInBytes, 4) != 4) { - return DRWAV_INVALID_FILE; - } - - pHeaderOut->sizeInBytes = drwav_bytes_to_u32_ex(sizeInBytes, container); - pHeaderOut->paddingSize = drwav__chunk_padding_size_riff(pHeaderOut->sizeInBytes); - - *pRunningBytesReadOut += 8; - } else if (container == drwav_container_w64) { - drwav_uint8 sizeInBytes[8]; - - if (onRead(pUserData, pHeaderOut->id.guid, 16) != 16) { - return DRWAV_AT_END; - } - - if (onRead(pUserData, sizeInBytes, 8) != 8) { - return DRWAV_INVALID_FILE; - } - - pHeaderOut->sizeInBytes = drwav_bytes_to_u64(sizeInBytes) - 24; /* <-- Subtract 24 because w64 includes the size of the header. */ - pHeaderOut->paddingSize = drwav__chunk_padding_size_w64(pHeaderOut->sizeInBytes); - *pRunningBytesReadOut += 24; - } else { - return DRWAV_INVALID_FILE; - } - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE drwav_bool32 drwav__seek_forward(drwav_seek_proc onSeek, drwav_uint64 offset, void* pUserData) -{ - drwav_uint64 bytesRemainingToSeek = offset; - while (bytesRemainingToSeek > 0) { - if (bytesRemainingToSeek > 0x7FFFFFFF) { - if (!onSeek(pUserData, 0x7FFFFFFF, drwav_seek_origin_current)) { - return DRWAV_FALSE; - } - bytesRemainingToSeek -= 0x7FFFFFFF; - } else { - if (!onSeek(pUserData, (int)bytesRemainingToSeek, drwav_seek_origin_current)) { - return DRWAV_FALSE; - } - bytesRemainingToSeek = 0; - } - } - - return DRWAV_TRUE; -} - -DRWAV_PRIVATE drwav_bool32 drwav__seek_from_start(drwav_seek_proc onSeek, drwav_uint64 offset, void* pUserData) -{ - if (offset <= 0x7FFFFFFF) { - return onSeek(pUserData, (int)offset, drwav_seek_origin_start); - } - - /* Larger than 32-bit seek. */ - if (!onSeek(pUserData, 0x7FFFFFFF, drwav_seek_origin_start)) { - return DRWAV_FALSE; - } - offset -= 0x7FFFFFFF; - - for (;;) { - if (offset <= 0x7FFFFFFF) { - return onSeek(pUserData, (int)offset, drwav_seek_origin_current); - } - - if (!onSeek(pUserData, 0x7FFFFFFF, drwav_seek_origin_current)) { - return DRWAV_FALSE; - } - offset -= 0x7FFFFFFF; - } - - /* Should never get here. */ - /*return DRWAV_TRUE; */ -} - - - -DRWAV_PRIVATE size_t drwav__on_read(drwav_read_proc onRead, void* pUserData, void* pBufferOut, size_t bytesToRead, drwav_uint64* pCursor) -{ - size_t bytesRead; - - DRWAV_ASSERT(onRead != NULL); - DRWAV_ASSERT(pCursor != NULL); - - bytesRead = onRead(pUserData, pBufferOut, bytesToRead); - *pCursor += bytesRead; - return bytesRead; -} - -#if 0 -DRWAV_PRIVATE drwav_bool32 drwav__on_seek(drwav_seek_proc onSeek, void* pUserData, int offset, drwav_seek_origin origin, drwav_uint64* pCursor) -{ - DRWAV_ASSERT(onSeek != NULL); - DRWAV_ASSERT(pCursor != NULL); - - if (!onSeek(pUserData, offset, origin)) { - return DRWAV_FALSE; - } - - if (origin == drwav_seek_origin_start) { - *pCursor = offset; - } else { - *pCursor += offset; - } - - return DRWAV_TRUE; -} -#endif - - -#define DRWAV_SMPL_BYTES 36 -#define DRWAV_SMPL_LOOP_BYTES 24 -#define DRWAV_INST_BYTES 7 -#define DRWAV_ACID_BYTES 24 -#define DRWAV_CUE_BYTES 4 -#define DRWAV_BEXT_BYTES 602 -#define DRWAV_BEXT_DESCRIPTION_BYTES 256 -#define DRWAV_BEXT_ORIGINATOR_NAME_BYTES 32 -#define DRWAV_BEXT_ORIGINATOR_REF_BYTES 32 -#define DRWAV_BEXT_RESERVED_BYTES 180 -#define DRWAV_BEXT_UMID_BYTES 64 -#define DRWAV_CUE_POINT_BYTES 24 -#define DRWAV_LIST_LABEL_OR_NOTE_BYTES 4 -#define DRWAV_LIST_LABELLED_TEXT_BYTES 20 - -#define DRWAV_METADATA_ALIGNMENT 8 - -typedef enum -{ - drwav__metadata_parser_stage_count, - drwav__metadata_parser_stage_read -} drwav__metadata_parser_stage; - -typedef struct -{ - drwav_read_proc onRead; - drwav_seek_proc onSeek; - void *pReadSeekUserData; - drwav__metadata_parser_stage stage; - drwav_metadata *pMetadata; - drwav_uint32 metadataCount; - drwav_uint8 *pData; - drwav_uint8 *pDataCursor; - drwav_uint64 metadataCursor; - drwav_uint64 extraCapacity; -} drwav__metadata_parser; - -DRWAV_PRIVATE size_t drwav__metadata_memory_capacity(drwav__metadata_parser* pParser) -{ - drwav_uint64 cap = sizeof(drwav_metadata) * (drwav_uint64)pParser->metadataCount + pParser->extraCapacity; - if (cap > DRWAV_SIZE_MAX) { - return 0; /* Too big. */ - } - - return (size_t)cap; /* Safe cast thanks to the check above. */ -} - -DRWAV_PRIVATE drwav_uint8* drwav__metadata_get_memory(drwav__metadata_parser* pParser, size_t size, size_t align) -{ - drwav_uint8* pResult; - - if (align) { - drwav_uintptr modulo = (drwav_uintptr)pParser->pDataCursor % align; - if (modulo != 0) { - pParser->pDataCursor += align - modulo; - } - } - - pResult = pParser->pDataCursor; - - /* - Getting to the point where this function is called means there should always be memory - available. Out of memory checks should have been done at an earlier stage. - */ - DRWAV_ASSERT((pResult + size) <= (pParser->pData + drwav__metadata_memory_capacity(pParser))); - - pParser->pDataCursor += size; - return pResult; -} - -DRWAV_PRIVATE void drwav__metadata_request_extra_memory_for_stage_2(drwav__metadata_parser* pParser, size_t bytes, size_t align) -{ - size_t extra = bytes + (align ? (align - 1) : 0); - pParser->extraCapacity += extra; -} - -DRWAV_PRIVATE drwav_result drwav__metadata_alloc(drwav__metadata_parser* pParser, drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pParser->extraCapacity != 0 || pParser->metadataCount != 0) { - pAllocationCallbacks->onFree(pParser->pData, pAllocationCallbacks->pUserData); - - pParser->pData = (drwav_uint8*)pAllocationCallbacks->onMalloc(drwav__metadata_memory_capacity(pParser), pAllocationCallbacks->pUserData); - pParser->pDataCursor = pParser->pData; - - if (pParser->pData == NULL) { - return DRWAV_OUT_OF_MEMORY; - } - - /* - We don't need to worry about specifying an alignment here because malloc always returns something - of suitable alignment. This also means pParser->pMetadata is all that we need to store in order - for us to free when we are done. - */ - pParser->pMetadata = (drwav_metadata*)drwav__metadata_get_memory(pParser, sizeof(drwav_metadata) * pParser->metadataCount, 1); - pParser->metadataCursor = 0; - } - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE size_t drwav__metadata_parser_read(drwav__metadata_parser* pParser, void* pBufferOut, size_t bytesToRead, drwav_uint64* pCursor) -{ - if (pCursor != NULL) { - return drwav__on_read(pParser->onRead, pParser->pReadSeekUserData, pBufferOut, bytesToRead, pCursor); - } else { - return pParser->onRead(pParser->pReadSeekUserData, pBufferOut, bytesToRead); - } -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_smpl_to_metadata_obj(drwav__metadata_parser* pParser, const drwav_chunk_header* pChunkHeader, drwav_metadata* pMetadata) -{ - drwav_uint8 smplHeaderData[DRWAV_SMPL_BYTES]; - drwav_uint64 totalBytesRead = 0; - size_t bytesJustRead; - - if (pMetadata == NULL) { - return 0; - } - - bytesJustRead = drwav__metadata_parser_read(pParser, smplHeaderData, sizeof(smplHeaderData), &totalBytesRead); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - DRWAV_ASSERT(pChunkHeader != NULL); - - if (pMetadata != NULL && bytesJustRead == sizeof(smplHeaderData)) { - drwav_uint32 iSampleLoop; - - pMetadata->type = drwav_metadata_type_smpl; - pMetadata->data.smpl.manufacturerId = drwav_bytes_to_u32(smplHeaderData + 0); - pMetadata->data.smpl.productId = drwav_bytes_to_u32(smplHeaderData + 4); - pMetadata->data.smpl.samplePeriodNanoseconds = drwav_bytes_to_u32(smplHeaderData + 8); - pMetadata->data.smpl.midiUnityNote = drwav_bytes_to_u32(smplHeaderData + 12); - pMetadata->data.smpl.midiPitchFraction = drwav_bytes_to_u32(smplHeaderData + 16); - pMetadata->data.smpl.smpteFormat = drwav_bytes_to_u32(smplHeaderData + 20); - pMetadata->data.smpl.smpteOffset = drwav_bytes_to_u32(smplHeaderData + 24); - pMetadata->data.smpl.sampleLoopCount = drwav_bytes_to_u32(smplHeaderData + 28); - pMetadata->data.smpl.samplerSpecificDataSizeInBytes = drwav_bytes_to_u32(smplHeaderData + 32); - - /* - The loop count needs to be validated against the size of the chunk for safety so we don't - attempt to read over the boundary of the chunk. - */ - if (pMetadata->data.smpl.sampleLoopCount == (pChunkHeader->sizeInBytes - DRWAV_SMPL_BYTES) / DRWAV_SMPL_LOOP_BYTES) { - pMetadata->data.smpl.pLoops = (drwav_smpl_loop*)drwav__metadata_get_memory(pParser, sizeof(drwav_smpl_loop) * pMetadata->data.smpl.sampleLoopCount, DRWAV_METADATA_ALIGNMENT); - - for (iSampleLoop = 0; iSampleLoop < pMetadata->data.smpl.sampleLoopCount; ++iSampleLoop) { - drwav_uint8 smplLoopData[DRWAV_SMPL_LOOP_BYTES]; - bytesJustRead = drwav__metadata_parser_read(pParser, smplLoopData, sizeof(smplLoopData), &totalBytesRead); - - if (bytesJustRead == sizeof(smplLoopData)) { - pMetadata->data.smpl.pLoops[iSampleLoop].cuePointId = drwav_bytes_to_u32(smplLoopData + 0); - pMetadata->data.smpl.pLoops[iSampleLoop].type = drwav_bytes_to_u32(smplLoopData + 4); - pMetadata->data.smpl.pLoops[iSampleLoop].firstSampleByteOffset = drwav_bytes_to_u32(smplLoopData + 8); - pMetadata->data.smpl.pLoops[iSampleLoop].lastSampleByteOffset = drwav_bytes_to_u32(smplLoopData + 12); - pMetadata->data.smpl.pLoops[iSampleLoop].sampleFraction = drwav_bytes_to_u32(smplLoopData + 16); - pMetadata->data.smpl.pLoops[iSampleLoop].playCount = drwav_bytes_to_u32(smplLoopData + 20); - } else { - break; - } - } - - if (pMetadata->data.smpl.samplerSpecificDataSizeInBytes > 0) { - pMetadata->data.smpl.pSamplerSpecificData = drwav__metadata_get_memory(pParser, pMetadata->data.smpl.samplerSpecificDataSizeInBytes, 1); - DRWAV_ASSERT(pMetadata->data.smpl.pSamplerSpecificData != NULL); - - drwav__metadata_parser_read(pParser, pMetadata->data.smpl.pSamplerSpecificData, pMetadata->data.smpl.samplerSpecificDataSizeInBytes, &totalBytesRead); - } - } - } - - return totalBytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_cue_to_metadata_obj(drwav__metadata_parser* pParser, const drwav_chunk_header* pChunkHeader, drwav_metadata* pMetadata) -{ - drwav_uint8 cueHeaderSectionData[DRWAV_CUE_BYTES]; - drwav_uint64 totalBytesRead = 0; - size_t bytesJustRead; - - if (pMetadata == NULL) { - return 0; - } - - bytesJustRead = drwav__metadata_parser_read(pParser, cueHeaderSectionData, sizeof(cueHeaderSectionData), &totalBytesRead); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesJustRead == sizeof(cueHeaderSectionData)) { - pMetadata->type = drwav_metadata_type_cue; - pMetadata->data.cue.cuePointCount = drwav_bytes_to_u32(cueHeaderSectionData); - - /* - We need to validate the cue point count against the size of the chunk so we don't read - beyond the chunk. - */ - if (pMetadata->data.cue.cuePointCount == (pChunkHeader->sizeInBytes - DRWAV_CUE_BYTES) / DRWAV_CUE_POINT_BYTES) { - pMetadata->data.cue.pCuePoints = (drwav_cue_point*)drwav__metadata_get_memory(pParser, sizeof(drwav_cue_point) * pMetadata->data.cue.cuePointCount, DRWAV_METADATA_ALIGNMENT); - DRWAV_ASSERT(pMetadata->data.cue.pCuePoints != NULL); - - if (pMetadata->data.cue.cuePointCount > 0) { - drwav_uint32 iCuePoint; - - for (iCuePoint = 0; iCuePoint < pMetadata->data.cue.cuePointCount; ++iCuePoint) { - drwav_uint8 cuePointData[DRWAV_CUE_POINT_BYTES]; - bytesJustRead = drwav__metadata_parser_read(pParser, cuePointData, sizeof(cuePointData), &totalBytesRead); - - if (bytesJustRead == sizeof(cuePointData)) { - pMetadata->data.cue.pCuePoints[iCuePoint].id = drwav_bytes_to_u32(cuePointData + 0); - pMetadata->data.cue.pCuePoints[iCuePoint].playOrderPosition = drwav_bytes_to_u32(cuePointData + 4); - pMetadata->data.cue.pCuePoints[iCuePoint].dataChunkId[0] = cuePointData[8]; - pMetadata->data.cue.pCuePoints[iCuePoint].dataChunkId[1] = cuePointData[9]; - pMetadata->data.cue.pCuePoints[iCuePoint].dataChunkId[2] = cuePointData[10]; - pMetadata->data.cue.pCuePoints[iCuePoint].dataChunkId[3] = cuePointData[11]; - pMetadata->data.cue.pCuePoints[iCuePoint].chunkStart = drwav_bytes_to_u32(cuePointData + 12); - pMetadata->data.cue.pCuePoints[iCuePoint].blockStart = drwav_bytes_to_u32(cuePointData + 16); - pMetadata->data.cue.pCuePoints[iCuePoint].sampleByteOffset = drwav_bytes_to_u32(cuePointData + 20); - } else { - break; - } - } - } - } - } - - return totalBytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_inst_to_metadata_obj(drwav__metadata_parser* pParser, drwav_metadata* pMetadata) -{ - drwav_uint8 instData[DRWAV_INST_BYTES]; - drwav_uint64 bytesRead; - - if (pMetadata == NULL) { - return 0; - } - - bytesRead = drwav__metadata_parser_read(pParser, instData, sizeof(instData), NULL); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesRead == sizeof(instData)) { - pMetadata->type = drwav_metadata_type_inst; - pMetadata->data.inst.midiUnityNote = (drwav_int8)instData[0]; - pMetadata->data.inst.fineTuneCents = (drwav_int8)instData[1]; - pMetadata->data.inst.gainDecibels = (drwav_int8)instData[2]; - pMetadata->data.inst.lowNote = (drwav_int8)instData[3]; - pMetadata->data.inst.highNote = (drwav_int8)instData[4]; - pMetadata->data.inst.lowVelocity = (drwav_int8)instData[5]; - pMetadata->data.inst.highVelocity = (drwav_int8)instData[6]; - } - - return bytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_acid_to_metadata_obj(drwav__metadata_parser* pParser, drwav_metadata* pMetadata) -{ - drwav_uint8 acidData[DRWAV_ACID_BYTES]; - drwav_uint64 bytesRead; - - if (pMetadata == NULL) { - return 0; - } - - bytesRead = drwav__metadata_parser_read(pParser, acidData, sizeof(acidData), NULL); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesRead == sizeof(acidData)) { - pMetadata->type = drwav_metadata_type_acid; - pMetadata->data.acid.flags = drwav_bytes_to_u32(acidData + 0); - pMetadata->data.acid.midiUnityNote = drwav_bytes_to_u16(acidData + 4); - pMetadata->data.acid.reserved1 = drwav_bytes_to_u16(acidData + 6); - pMetadata->data.acid.reserved2 = drwav_bytes_to_f32(acidData + 8); - pMetadata->data.acid.numBeats = drwav_bytes_to_u32(acidData + 12); - pMetadata->data.acid.meterDenominator = drwav_bytes_to_u16(acidData + 16); - pMetadata->data.acid.meterNumerator = drwav_bytes_to_u16(acidData + 18); - pMetadata->data.acid.tempo = drwav_bytes_to_f32(acidData + 20); - } - - return bytesRead; -} - -DRWAV_PRIVATE size_t drwav__strlen(const char* str) -{ - size_t result = 0; - - while (*str++) { - result += 1; - } - - return result; -} - -DRWAV_PRIVATE size_t drwav__strlen_clamped(const char* str, size_t maxToRead) -{ - size_t result = 0; - - while (*str++ && result < maxToRead) { - result += 1; - } - - return result; -} - -DRWAV_PRIVATE char* drwav__metadata_copy_string(drwav__metadata_parser* pParser, const char* str, size_t maxToRead) -{ - size_t len = drwav__strlen_clamped(str, maxToRead); - - if (len) { - char* result = (char*)drwav__metadata_get_memory(pParser, len + 1, 1); - DRWAV_ASSERT(result != NULL); - - DRWAV_COPY_MEMORY(result, str, len); - result[len] = '\0'; - - return result; - } else { - return NULL; - } -} - -typedef struct -{ - const void* pBuffer; - size_t sizeInBytes; - size_t cursor; -} drwav_buffer_reader; - -DRWAV_PRIVATE drwav_result drwav_buffer_reader_init(const void* pBuffer, size_t sizeInBytes, drwav_buffer_reader* pReader) -{ - DRWAV_ASSERT(pBuffer != NULL); - DRWAV_ASSERT(pReader != NULL); - - DRWAV_ZERO_OBJECT(pReader); - - pReader->pBuffer = pBuffer; - pReader->sizeInBytes = sizeInBytes; - pReader->cursor = 0; - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE const void* drwav_buffer_reader_ptr(const drwav_buffer_reader* pReader) -{ - DRWAV_ASSERT(pReader != NULL); - - return drwav_offset_ptr(pReader->pBuffer, pReader->cursor); -} - -DRWAV_PRIVATE drwav_result drwav_buffer_reader_seek(drwav_buffer_reader* pReader, size_t bytesToSeek) -{ - DRWAV_ASSERT(pReader != NULL); - - if (pReader->cursor + bytesToSeek > pReader->sizeInBytes) { - return DRWAV_BAD_SEEK; /* Seeking too far forward. */ - } - - pReader->cursor += bytesToSeek; - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE drwav_result drwav_buffer_reader_read(drwav_buffer_reader* pReader, void* pDst, size_t bytesToRead, size_t* pBytesRead) -{ - drwav_result result = DRWAV_SUCCESS; - size_t bytesRemaining; - - DRWAV_ASSERT(pReader != NULL); - - if (pBytesRead != NULL) { - *pBytesRead = 0; - } - - bytesRemaining = (pReader->sizeInBytes - pReader->cursor); - if (bytesToRead > bytesRemaining) { - bytesToRead = bytesRemaining; - } - - if (pDst == NULL) { - /* Seek. */ - result = drwav_buffer_reader_seek(pReader, bytesToRead); - } else { - /* Read. */ - DRWAV_COPY_MEMORY(pDst, drwav_buffer_reader_ptr(pReader), bytesToRead); - pReader->cursor += bytesToRead; - } - - DRWAV_ASSERT(pReader->cursor <= pReader->sizeInBytes); - - if (result == DRWAV_SUCCESS) { - if (pBytesRead != NULL) { - *pBytesRead = bytesToRead; - } - } - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE drwav_result drwav_buffer_reader_read_u16(drwav_buffer_reader* pReader, drwav_uint16* pDst) -{ - drwav_result result; - size_t bytesRead; - drwav_uint8 data[2]; - - DRWAV_ASSERT(pReader != NULL); - DRWAV_ASSERT(pDst != NULL); - - *pDst = 0; /* Safety. */ - - result = drwav_buffer_reader_read(pReader, data, sizeof(*pDst), &bytesRead); - if (result != DRWAV_SUCCESS || bytesRead != sizeof(*pDst)) { - return result; - } - - *pDst = drwav_bytes_to_u16(data); - - return DRWAV_SUCCESS; -} - -DRWAV_PRIVATE drwav_result drwav_buffer_reader_read_u32(drwav_buffer_reader* pReader, drwav_uint32* pDst) -{ - drwav_result result; - size_t bytesRead; - drwav_uint8 data[4]; - - DRWAV_ASSERT(pReader != NULL); - DRWAV_ASSERT(pDst != NULL); - - *pDst = 0; /* Safety. */ - - result = drwav_buffer_reader_read(pReader, data, sizeof(*pDst), &bytesRead); - if (result != DRWAV_SUCCESS || bytesRead != sizeof(*pDst)) { - return result; - } - - *pDst = drwav_bytes_to_u32(data); - - return DRWAV_SUCCESS; -} - - - -DRWAV_PRIVATE drwav_uint64 drwav__read_bext_to_metadata_obj(drwav__metadata_parser* pParser, drwav_metadata* pMetadata, drwav_uint64 chunkSize) -{ - drwav_uint8 bextData[DRWAV_BEXT_BYTES]; - size_t bytesRead = drwav__metadata_parser_read(pParser, bextData, sizeof(bextData), NULL); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesRead == sizeof(bextData)) { - drwav_buffer_reader reader; - drwav_uint32 timeReferenceLow; - drwav_uint32 timeReferenceHigh; - size_t extraBytes; - - pMetadata->type = drwav_metadata_type_bext; - - if (drwav_buffer_reader_init(bextData, bytesRead, &reader) == DRWAV_SUCCESS) { - pMetadata->data.bext.pDescription = drwav__metadata_copy_string(pParser, (const char*)drwav_buffer_reader_ptr(&reader), DRWAV_BEXT_DESCRIPTION_BYTES); - drwav_buffer_reader_seek(&reader, DRWAV_BEXT_DESCRIPTION_BYTES); - - pMetadata->data.bext.pOriginatorName = drwav__metadata_copy_string(pParser, (const char*)drwav_buffer_reader_ptr(&reader), DRWAV_BEXT_ORIGINATOR_NAME_BYTES); - drwav_buffer_reader_seek(&reader, DRWAV_BEXT_ORIGINATOR_NAME_BYTES); - - pMetadata->data.bext.pOriginatorReference = drwav__metadata_copy_string(pParser, (const char*)drwav_buffer_reader_ptr(&reader), DRWAV_BEXT_ORIGINATOR_REF_BYTES); - drwav_buffer_reader_seek(&reader, DRWAV_BEXT_ORIGINATOR_REF_BYTES); - - drwav_buffer_reader_read(&reader, pMetadata->data.bext.pOriginationDate, sizeof(pMetadata->data.bext.pOriginationDate), NULL); - drwav_buffer_reader_read(&reader, pMetadata->data.bext.pOriginationTime, sizeof(pMetadata->data.bext.pOriginationTime), NULL); - - drwav_buffer_reader_read_u32(&reader, &timeReferenceLow); - drwav_buffer_reader_read_u32(&reader, &timeReferenceHigh); - pMetadata->data.bext.timeReference = ((drwav_uint64)timeReferenceHigh << 32) + timeReferenceLow; - - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.version); - - pMetadata->data.bext.pUMID = drwav__metadata_get_memory(pParser, DRWAV_BEXT_UMID_BYTES, 1); - drwav_buffer_reader_read(&reader, pMetadata->data.bext.pUMID, DRWAV_BEXT_UMID_BYTES, NULL); - - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.loudnessValue); - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.loudnessRange); - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.maxTruePeakLevel); - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.maxMomentaryLoudness); - drwav_buffer_reader_read_u16(&reader, &pMetadata->data.bext.maxShortTermLoudness); - - DRWAV_ASSERT((drwav_offset_ptr(drwav_buffer_reader_ptr(&reader), DRWAV_BEXT_RESERVED_BYTES)) == (bextData + DRWAV_BEXT_BYTES)); - - extraBytes = (size_t)(chunkSize - DRWAV_BEXT_BYTES); - if (extraBytes > 0) { - pMetadata->data.bext.pCodingHistory = (char*)drwav__metadata_get_memory(pParser, extraBytes + 1, 1); - DRWAV_ASSERT(pMetadata->data.bext.pCodingHistory != NULL); - - bytesRead += drwav__metadata_parser_read(pParser, pMetadata->data.bext.pCodingHistory, extraBytes, NULL); - pMetadata->data.bext.codingHistorySize = (drwav_uint32)drwav__strlen(pMetadata->data.bext.pCodingHistory); - } else { - pMetadata->data.bext.pCodingHistory = NULL; - pMetadata->data.bext.codingHistorySize = 0; - } - } - } - - return bytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_list_label_or_note_to_metadata_obj(drwav__metadata_parser* pParser, drwav_metadata* pMetadata, drwav_uint64 chunkSize, drwav_metadata_type type) -{ - drwav_uint8 cueIDBuffer[DRWAV_LIST_LABEL_OR_NOTE_BYTES]; - drwav_uint64 totalBytesRead = 0; - size_t bytesJustRead = drwav__metadata_parser_read(pParser, cueIDBuffer, sizeof(cueIDBuffer), &totalBytesRead); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesJustRead == sizeof(cueIDBuffer)) { - drwav_uint32 sizeIncludingNullTerminator; - - pMetadata->type = type; - pMetadata->data.labelOrNote.cuePointId = drwav_bytes_to_u32(cueIDBuffer); - - sizeIncludingNullTerminator = (drwav_uint32)chunkSize - DRWAV_LIST_LABEL_OR_NOTE_BYTES; - if (sizeIncludingNullTerminator > 0) { - pMetadata->data.labelOrNote.stringLength = sizeIncludingNullTerminator - 1; - pMetadata->data.labelOrNote.pString = (char*)drwav__metadata_get_memory(pParser, sizeIncludingNullTerminator, 1); - DRWAV_ASSERT(pMetadata->data.labelOrNote.pString != NULL); - - drwav__metadata_parser_read(pParser, pMetadata->data.labelOrNote.pString, sizeIncludingNullTerminator, &totalBytesRead); - } else { - pMetadata->data.labelOrNote.stringLength = 0; - pMetadata->data.labelOrNote.pString = NULL; - } - } - - return totalBytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__read_list_labelled_cue_region_to_metadata_obj(drwav__metadata_parser* pParser, drwav_metadata* pMetadata, drwav_uint64 chunkSize) -{ - drwav_uint8 buffer[DRWAV_LIST_LABELLED_TEXT_BYTES]; - drwav_uint64 totalBytesRead = 0; - size_t bytesJustRead = drwav__metadata_parser_read(pParser, buffer, sizeof(buffer), &totalBytesRead); - - DRWAV_ASSERT(pParser->stage == drwav__metadata_parser_stage_read); - - if (bytesJustRead == sizeof(buffer)) { - drwav_uint32 sizeIncludingNullTerminator; - - pMetadata->type = drwav_metadata_type_list_labelled_cue_region; - pMetadata->data.labelledCueRegion.cuePointId = drwav_bytes_to_u32(buffer + 0); - pMetadata->data.labelledCueRegion.sampleLength = drwav_bytes_to_u32(buffer + 4); - pMetadata->data.labelledCueRegion.purposeId[0] = buffer[8]; - pMetadata->data.labelledCueRegion.purposeId[1] = buffer[9]; - pMetadata->data.labelledCueRegion.purposeId[2] = buffer[10]; - pMetadata->data.labelledCueRegion.purposeId[3] = buffer[11]; - pMetadata->data.labelledCueRegion.country = drwav_bytes_to_u16(buffer + 12); - pMetadata->data.labelledCueRegion.language = drwav_bytes_to_u16(buffer + 14); - pMetadata->data.labelledCueRegion.dialect = drwav_bytes_to_u16(buffer + 16); - pMetadata->data.labelledCueRegion.codePage = drwav_bytes_to_u16(buffer + 18); - - sizeIncludingNullTerminator = (drwav_uint32)chunkSize - DRWAV_LIST_LABELLED_TEXT_BYTES; - if (sizeIncludingNullTerminator > 0) { - pMetadata->data.labelledCueRegion.stringLength = sizeIncludingNullTerminator - 1; - pMetadata->data.labelledCueRegion.pString = (char*)drwav__metadata_get_memory(pParser, sizeIncludingNullTerminator, 1); - DRWAV_ASSERT(pMetadata->data.labelledCueRegion.pString != NULL); - - drwav__metadata_parser_read(pParser, pMetadata->data.labelledCueRegion.pString, sizeIncludingNullTerminator, &totalBytesRead); - } else { - pMetadata->data.labelledCueRegion.stringLength = 0; - pMetadata->data.labelledCueRegion.pString = NULL; - } - } - - return totalBytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__metadata_process_info_text_chunk(drwav__metadata_parser* pParser, drwav_uint64 chunkSize, drwav_metadata_type type) -{ - drwav_uint64 bytesRead = 0; - drwav_uint32 stringSizeWithNullTerminator = (drwav_uint32)chunkSize; - - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - drwav__metadata_request_extra_memory_for_stage_2(pParser, stringSizeWithNullTerminator, 1); - } else { - drwav_metadata* pMetadata = &pParser->pMetadata[pParser->metadataCursor]; - pMetadata->type = type; - if (stringSizeWithNullTerminator > 0) { - pMetadata->data.infoText.stringLength = stringSizeWithNullTerminator - 1; - pMetadata->data.infoText.pString = (char*)drwav__metadata_get_memory(pParser, stringSizeWithNullTerminator, 1); - DRWAV_ASSERT(pMetadata->data.infoText.pString != NULL); - - bytesRead = drwav__metadata_parser_read(pParser, pMetadata->data.infoText.pString, (size_t)stringSizeWithNullTerminator, NULL); - if (bytesRead == chunkSize) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } else { - pMetadata->data.infoText.stringLength = 0; - pMetadata->data.infoText.pString = NULL; - pParser->metadataCursor += 1; - } - } - - return bytesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav__metadata_process_unknown_chunk(drwav__metadata_parser* pParser, const drwav_uint8* pChunkId, drwav_uint64 chunkSize, drwav_metadata_location location) -{ - drwav_uint64 bytesRead = 0; - - if (location == drwav_metadata_location_invalid) { - return 0; - } - - if (drwav_fourcc_equal(pChunkId, "data") || drwav_fourcc_equal(pChunkId, "fmt ") || drwav_fourcc_equal(pChunkId, "fact")) { - return 0; - } - - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - drwav__metadata_request_extra_memory_for_stage_2(pParser, (size_t)chunkSize, 1); - } else { - drwav_metadata* pMetadata = &pParser->pMetadata[pParser->metadataCursor]; - pMetadata->type = drwav_metadata_type_unknown; - pMetadata->data.unknown.chunkLocation = location; - pMetadata->data.unknown.id[0] = pChunkId[0]; - pMetadata->data.unknown.id[1] = pChunkId[1]; - pMetadata->data.unknown.id[2] = pChunkId[2]; - pMetadata->data.unknown.id[3] = pChunkId[3]; - pMetadata->data.unknown.dataSizeInBytes = (drwav_uint32)chunkSize; - pMetadata->data.unknown.pData = (drwav_uint8 *)drwav__metadata_get_memory(pParser, (size_t)chunkSize, 1); - DRWAV_ASSERT(pMetadata->data.unknown.pData != NULL); - - bytesRead = drwav__metadata_parser_read(pParser, pMetadata->data.unknown.pData, pMetadata->data.unknown.dataSizeInBytes, NULL); - if (bytesRead == pMetadata->data.unknown.dataSizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to read. */ - } - } - - return bytesRead; -} - -DRWAV_PRIVATE drwav_bool32 drwav__chunk_matches(drwav_metadata_type allowedMetadataTypes, const drwav_uint8* pChunkID, drwav_metadata_type type, const char* pID) -{ - return (allowedMetadataTypes & type) && drwav_fourcc_equal(pChunkID, pID); -} - -DRWAV_PRIVATE drwav_uint64 drwav__metadata_process_chunk(drwav__metadata_parser* pParser, const drwav_chunk_header* pChunkHeader, drwav_metadata_type allowedMetadataTypes) -{ - const drwav_uint8 *pChunkID = pChunkHeader->id.fourcc; - drwav_uint64 bytesRead = 0; - - if (drwav__chunk_matches(allowedMetadataTypes, pChunkID, drwav_metadata_type_smpl, "smpl")) { - if (pChunkHeader->sizeInBytes >= DRWAV_SMPL_BYTES) { - if (pParser->stage == drwav__metadata_parser_stage_count) { - drwav_uint8 buffer[4]; - size_t bytesJustRead; - - if (!pParser->onSeek(pParser->pReadSeekUserData, 28, drwav_seek_origin_current)) { - return bytesRead; - } - bytesRead += 28; - - bytesJustRead = drwav__metadata_parser_read(pParser, buffer, sizeof(buffer), &bytesRead); - if (bytesJustRead == sizeof(buffer)) { - drwav_uint32 loopCount = drwav_bytes_to_u32(buffer); - drwav_uint64 calculatedLoopCount; - - /* The loop count must be validated against the size of the chunk. */ - calculatedLoopCount = (pChunkHeader->sizeInBytes - DRWAV_SMPL_BYTES) / DRWAV_SMPL_LOOP_BYTES; - if (calculatedLoopCount == loopCount) { - bytesJustRead = drwav__metadata_parser_read(pParser, buffer, sizeof(buffer), &bytesRead); - if (bytesJustRead == sizeof(buffer)) { - drwav_uint32 samplerSpecificDataSizeInBytes = drwav_bytes_to_u32(buffer); - - pParser->metadataCount += 1; - drwav__metadata_request_extra_memory_for_stage_2(pParser, sizeof(drwav_smpl_loop) * loopCount, DRWAV_METADATA_ALIGNMENT); - drwav__metadata_request_extra_memory_for_stage_2(pParser, samplerSpecificDataSizeInBytes, 1); - } - } else { - /* Loop count in header does not match the size of the chunk. */ - } - } - } else { - bytesRead = drwav__read_smpl_to_metadata_obj(pParser, pChunkHeader, &pParser->pMetadata[pParser->metadataCursor]); - if (bytesRead == pChunkHeader->sizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, pChunkID, drwav_metadata_type_inst, "inst")) { - if (pChunkHeader->sizeInBytes == DRWAV_INST_BYTES) { - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - } else { - bytesRead = drwav__read_inst_to_metadata_obj(pParser, &pParser->pMetadata[pParser->metadataCursor]); - if (bytesRead == pChunkHeader->sizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, pChunkID, drwav_metadata_type_acid, "acid")) { - if (pChunkHeader->sizeInBytes == DRWAV_ACID_BYTES) { - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - } else { - bytesRead = drwav__read_acid_to_metadata_obj(pParser, &pParser->pMetadata[pParser->metadataCursor]); - if (bytesRead == pChunkHeader->sizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, pChunkID, drwav_metadata_type_cue, "cue ")) { - if (pChunkHeader->sizeInBytes >= DRWAV_CUE_BYTES) { - if (pParser->stage == drwav__metadata_parser_stage_count) { - size_t cueCount; - - pParser->metadataCount += 1; - cueCount = (size_t)(pChunkHeader->sizeInBytes - DRWAV_CUE_BYTES) / DRWAV_CUE_POINT_BYTES; - drwav__metadata_request_extra_memory_for_stage_2(pParser, sizeof(drwav_cue_point) * cueCount, DRWAV_METADATA_ALIGNMENT); - } else { - bytesRead = drwav__read_cue_to_metadata_obj(pParser, pChunkHeader, &pParser->pMetadata[pParser->metadataCursor]); - if (bytesRead == pChunkHeader->sizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, pChunkID, drwav_metadata_type_bext, "bext")) { - if (pChunkHeader->sizeInBytes >= DRWAV_BEXT_BYTES) { - if (pParser->stage == drwav__metadata_parser_stage_count) { - /* The description field is the largest one in a bext chunk, so that is the max size of this temporary buffer. */ - char buffer[DRWAV_BEXT_DESCRIPTION_BYTES + 1]; - size_t allocSizeNeeded = DRWAV_BEXT_UMID_BYTES; /* We know we will need SMPTE umid size. */ - size_t bytesJustRead; - - buffer[DRWAV_BEXT_DESCRIPTION_BYTES] = '\0'; - bytesJustRead = drwav__metadata_parser_read(pParser, buffer, DRWAV_BEXT_DESCRIPTION_BYTES, &bytesRead); - if (bytesJustRead != DRWAV_BEXT_DESCRIPTION_BYTES) { - return bytesRead; - } - allocSizeNeeded += drwav__strlen(buffer) + 1; - - buffer[DRWAV_BEXT_ORIGINATOR_NAME_BYTES] = '\0'; - bytesJustRead = drwav__metadata_parser_read(pParser, buffer, DRWAV_BEXT_ORIGINATOR_NAME_BYTES, &bytesRead); - if (bytesJustRead != DRWAV_BEXT_ORIGINATOR_NAME_BYTES) { - return bytesRead; - } - allocSizeNeeded += drwav__strlen(buffer) + 1; - - buffer[DRWAV_BEXT_ORIGINATOR_REF_BYTES] = '\0'; - bytesJustRead = drwav__metadata_parser_read(pParser, buffer, DRWAV_BEXT_ORIGINATOR_REF_BYTES, &bytesRead); - if (bytesJustRead != DRWAV_BEXT_ORIGINATOR_REF_BYTES) { - return bytesRead; - } - allocSizeNeeded += drwav__strlen(buffer) + 1; - allocSizeNeeded += (size_t)pChunkHeader->sizeInBytes - DRWAV_BEXT_BYTES; /* Coding history. */ - - drwav__metadata_request_extra_memory_for_stage_2(pParser, allocSizeNeeded, 1); - - pParser->metadataCount += 1; - } else { - bytesRead = drwav__read_bext_to_metadata_obj(pParser, &pParser->pMetadata[pParser->metadataCursor], pChunkHeader->sizeInBytes); - if (bytesRead == pChunkHeader->sizeInBytes) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav_fourcc_equal(pChunkID, "LIST") || drwav_fourcc_equal(pChunkID, "list")) { - drwav_metadata_location listType = drwav_metadata_location_invalid; - while (bytesRead < pChunkHeader->sizeInBytes) { - drwav_uint8 subchunkId[4]; - drwav_uint8 subchunkSizeBuffer[4]; - drwav_uint64 subchunkDataSize; - drwav_uint64 subchunkBytesRead = 0; - drwav_uint64 bytesJustRead = drwav__metadata_parser_read(pParser, subchunkId, sizeof(subchunkId), &bytesRead); - if (bytesJustRead != sizeof(subchunkId)) { - break; - } - - /* - The first thing in a list chunk should be "adtl" or "INFO". - - - adtl means this list is a Associated Data List Chunk and will contain labels, notes - or labelled cue regions. - - INFO means this list is an Info List Chunk containing info text chunks such as IPRD - which would specifies the album of this wav file. - - No data follows the adtl or INFO id so we just make note of what type this list is and - continue. - */ - if (drwav_fourcc_equal(subchunkId, "adtl")) { - listType = drwav_metadata_location_inside_adtl_list; - continue; - } else if (drwav_fourcc_equal(subchunkId, "INFO")) { - listType = drwav_metadata_location_inside_info_list; - continue; - } - - bytesJustRead = drwav__metadata_parser_read(pParser, subchunkSizeBuffer, sizeof(subchunkSizeBuffer), &bytesRead); - if (bytesJustRead != sizeof(subchunkSizeBuffer)) { - break; - } - subchunkDataSize = drwav_bytes_to_u32(subchunkSizeBuffer); - - if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_label, "labl") || drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_note, "note")) { - if (subchunkDataSize >= DRWAV_LIST_LABEL_OR_NOTE_BYTES) { - drwav_uint64 stringSizeWithNullTerm = subchunkDataSize - DRWAV_LIST_LABEL_OR_NOTE_BYTES; - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - drwav__metadata_request_extra_memory_for_stage_2(pParser, (size_t)stringSizeWithNullTerm, 1); - } else { - subchunkBytesRead = drwav__read_list_label_or_note_to_metadata_obj(pParser, &pParser->pMetadata[pParser->metadataCursor], subchunkDataSize, drwav_fourcc_equal(subchunkId, "labl") ? drwav_metadata_type_list_label : drwav_metadata_type_list_note); - if (subchunkBytesRead == subchunkDataSize) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_labelled_cue_region, "ltxt")) { - if (subchunkDataSize >= DRWAV_LIST_LABELLED_TEXT_BYTES) { - drwav_uint64 stringSizeWithNullTerminator = subchunkDataSize - DRWAV_LIST_LABELLED_TEXT_BYTES; - if (pParser->stage == drwav__metadata_parser_stage_count) { - pParser->metadataCount += 1; - drwav__metadata_request_extra_memory_for_stage_2(pParser, (size_t)stringSizeWithNullTerminator, 1); - } else { - subchunkBytesRead = drwav__read_list_labelled_cue_region_to_metadata_obj(pParser, &pParser->pMetadata[pParser->metadataCursor], subchunkDataSize); - if (subchunkBytesRead == subchunkDataSize) { - pParser->metadataCursor += 1; - } else { - /* Failed to parse. */ - } - } - } else { - /* Incorrectly formed chunk. */ - } - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_software, "ISFT")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_software); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_copyright, "ICOP")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_copyright); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_title, "INAM")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_title); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_artist, "IART")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_artist); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_comment, "ICMT")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_comment); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_date, "ICRD")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_date); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_genre, "IGNR")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_genre); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_album, "IPRD")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_album); - } else if (drwav__chunk_matches(allowedMetadataTypes, subchunkId, drwav_metadata_type_list_info_tracknumber, "ITRK")) { - subchunkBytesRead = drwav__metadata_process_info_text_chunk(pParser, subchunkDataSize, drwav_metadata_type_list_info_tracknumber); - } else if ((allowedMetadataTypes & drwav_metadata_type_unknown) != 0) { - subchunkBytesRead = drwav__metadata_process_unknown_chunk(pParser, subchunkId, subchunkDataSize, listType); - } - - bytesRead += subchunkBytesRead; - DRWAV_ASSERT(subchunkBytesRead <= subchunkDataSize); - - if (subchunkBytesRead < subchunkDataSize) { - drwav_uint64 bytesToSeek = subchunkDataSize - subchunkBytesRead; - - if (!pParser->onSeek(pParser->pReadSeekUserData, (int)bytesToSeek, drwav_seek_origin_current)) { - break; - } - bytesRead += bytesToSeek; - } - - if ((subchunkDataSize % 2) == 1) { - if (!pParser->onSeek(pParser->pReadSeekUserData, 1, drwav_seek_origin_current)) { - break; - } - bytesRead += 1; - } - } - } else if ((allowedMetadataTypes & drwav_metadata_type_unknown) != 0) { - bytesRead = drwav__metadata_process_unknown_chunk(pParser, pChunkID, pChunkHeader->sizeInBytes, drwav_metadata_location_top_level); - } - - return bytesRead; -} - - -DRWAV_PRIVATE drwav_uint32 drwav_get_bytes_per_pcm_frame(drwav* pWav) -{ - drwav_uint32 bytesPerFrame; - - /* - The bytes per frame is a bit ambiguous. It can be either be based on the bits per sample, or the block align. The way I'm doing it here - is that if the bits per sample is a multiple of 8, use floor(bitsPerSample*channels/8), otherwise fall back to the block align. - */ - if ((pWav->bitsPerSample & 0x7) == 0) { - /* Bits per sample is a multiple of 8. */ - bytesPerFrame = (pWav->bitsPerSample * pWav->fmt.channels) >> 3; - } else { - bytesPerFrame = pWav->fmt.blockAlign; - } - - /* Validation for known formats. a-law and mu-law should be 1 byte per channel. If it's not, it's not decodable. */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ALAW || pWav->translatedFormatTag == DR_WAVE_FORMAT_MULAW) { - if (bytesPerFrame != pWav->fmt.channels) { - return 0; /* Invalid file. */ - } - } - - return bytesPerFrame; -} - -DRWAV_API drwav_uint16 drwav_fmt_get_format(const drwav_fmt* pFMT) -{ - if (pFMT == NULL) { - return 0; - } - - if (pFMT->formatTag != DR_WAVE_FORMAT_EXTENSIBLE) { - return pFMT->formatTag; - } else { - return drwav_bytes_to_u16(pFMT->subFormat); /* Only the first two bytes are required. */ - } -} - -DRWAV_PRIVATE drwav_bool32 drwav_preinit(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pReadSeekUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pWav == NULL || onRead == NULL || onSeek == NULL) { - return DRWAV_FALSE; - } - - DRWAV_ZERO_MEMORY(pWav, sizeof(*pWav)); - pWav->onRead = onRead; - pWav->onSeek = onSeek; - pWav->pUserData = pReadSeekUserData; - pWav->allocationCallbacks = drwav_copy_allocation_callbacks_or_defaults(pAllocationCallbacks); - - if (pWav->allocationCallbacks.onFree == NULL || (pWav->allocationCallbacks.onMalloc == NULL && pWav->allocationCallbacks.onRealloc == NULL)) { - return DRWAV_FALSE; /* Invalid allocation callbacks. */ - } - - return DRWAV_TRUE; -} - -DRWAV_PRIVATE drwav_bool32 drwav_init__internal(drwav* pWav, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags) -{ - /* This function assumes drwav_preinit() has been called beforehand. */ - drwav_result result; - drwav_uint64 cursor; /* <-- Keeps track of the byte position so we can seek to specific locations. */ - drwav_bool32 sequential; - drwav_uint8 riff[4]; - drwav_fmt fmt; - unsigned short translatedFormatTag; - drwav_uint64 dataChunkSize = 0; /* <-- Important! Don't explicitly set this to 0 anywhere else. Calculation of the size of the data chunk is performed in different paths depending on the container. */ - drwav_uint64 sampleCountFromFactChunk = 0; /* Same as dataChunkSize - make sure this is the only place this is initialized to 0. */ - drwav_uint64 metadataStartPos; - drwav__metadata_parser metadataParser; - drwav_bool8 isProcessingMetadata = DRWAV_FALSE; - drwav_bool8 foundChunk_fmt = DRWAV_FALSE; - drwav_bool8 foundChunk_data = DRWAV_FALSE; - drwav_bool8 isAIFCFormType = DRWAV_FALSE; /* Only used with AIFF. */ - drwav_uint64 aiffFrameCount = 0; - - cursor = 0; - sequential = (flags & DRWAV_SEQUENTIAL) != 0; - DRWAV_ZERO_OBJECT(&fmt); - - /* The first 4 bytes should be the RIFF identifier. */ - if (drwav__on_read(pWav->onRead, pWav->pUserData, riff, sizeof(riff), &cursor) != sizeof(riff)) { - return DRWAV_FALSE; - } - - /* - The first 4 bytes can be used to identify the container. For RIFF files it will start with "RIFF" and for - w64 it will start with "riff". - */ - if (drwav_fourcc_equal(riff, "RIFF")) { - pWav->container = drwav_container_riff; - } else if (drwav_fourcc_equal(riff, "RIFX")) { - pWav->container = drwav_container_rifx; - } else if (drwav_fourcc_equal(riff, "riff")) { - int i; - drwav_uint8 riff2[12]; - - pWav->container = drwav_container_w64; - - /* Check the rest of the GUID for validity. */ - if (drwav__on_read(pWav->onRead, pWav->pUserData, riff2, sizeof(riff2), &cursor) != sizeof(riff2)) { - return DRWAV_FALSE; - } - - for (i = 0; i < 12; ++i) { - if (riff2[i] != drwavGUID_W64_RIFF[i+4]) { - return DRWAV_FALSE; - } - } - } else if (drwav_fourcc_equal(riff, "RF64")) { - pWav->container = drwav_container_rf64; - } else if (drwav_fourcc_equal(riff, "FORM")) { - pWav->container = drwav_container_aiff; - } else { - return DRWAV_FALSE; /* Unknown or unsupported container. */ - } - - - if (pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx || pWav->container == drwav_container_rf64) { - drwav_uint8 chunkSizeBytes[4]; - drwav_uint8 wave[4]; - - if (drwav__on_read(pWav->onRead, pWav->pUserData, chunkSizeBytes, sizeof(chunkSizeBytes), &cursor) != sizeof(chunkSizeBytes)) { - return DRWAV_FALSE; - } - - if (pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx) { - if (drwav_bytes_to_u32_ex(chunkSizeBytes, pWav->container) < 36) { - /* - I've had a report of a WAV file failing to load when the size of the WAVE chunk is not encoded - and is instead just set to 0. I'm going to relax the validation here to allow these files to - load. Considering the chunk size isn't actually used this should be safe. With this change my - test suite still passes. - */ - /*return DRWAV_FALSE;*/ /* Chunk size should always be at least 36 bytes. */ - } - } else if (pWav->container == drwav_container_rf64) { - if (drwav_bytes_to_u32_le(chunkSizeBytes) != 0xFFFFFFFF) { - return DRWAV_FALSE; /* Chunk size should always be set to -1/0xFFFFFFFF for RF64. The actual size is retrieved later. */ - } - } else { - return DRWAV_FALSE; /* Should never hit this. */ - } - - if (drwav__on_read(pWav->onRead, pWav->pUserData, wave, sizeof(wave), &cursor) != sizeof(wave)) { - return DRWAV_FALSE; - } - - if (!drwav_fourcc_equal(wave, "WAVE")) { - return DRWAV_FALSE; /* Expecting "WAVE". */ - } - } else if (pWav->container == drwav_container_w64) { - drwav_uint8 chunkSizeBytes[8]; - drwav_uint8 wave[16]; - - if (drwav__on_read(pWav->onRead, pWav->pUserData, chunkSizeBytes, sizeof(chunkSizeBytes), &cursor) != sizeof(chunkSizeBytes)) { - return DRWAV_FALSE; - } - - if (drwav_bytes_to_u64(chunkSizeBytes) < 80) { - return DRWAV_FALSE; - } - - if (drwav__on_read(pWav->onRead, pWav->pUserData, wave, sizeof(wave), &cursor) != sizeof(wave)) { - return DRWAV_FALSE; - } - - if (!drwav_guid_equal(wave, drwavGUID_W64_WAVE)) { - return DRWAV_FALSE; - } - } else if (pWav->container == drwav_container_aiff) { - drwav_uint8 chunkSizeBytes[4]; - drwav_uint8 aiff[4]; - - if (drwav__on_read(pWav->onRead, pWav->pUserData, chunkSizeBytes, sizeof(chunkSizeBytes), &cursor) != sizeof(chunkSizeBytes)) { - return DRWAV_FALSE; - } - - if (drwav_bytes_to_u32_be(chunkSizeBytes) < 18) { - return DRWAV_FALSE; - } - - if (drwav__on_read(pWav->onRead, pWav->pUserData, aiff, sizeof(aiff), &cursor) != sizeof(aiff)) { - return DRWAV_FALSE; - } - - if (drwav_fourcc_equal(aiff, "AIFF")) { - isAIFCFormType = DRWAV_FALSE; - } else if (drwav_fourcc_equal(aiff, "AIFC")) { - isAIFCFormType = DRWAV_TRUE; - } else { - return DRWAV_FALSE; /* Expecting "AIFF" or "AIFC". */ - } - } else { - return DRWAV_FALSE; - } - - - /* For RF64, the "ds64" chunk must come next, before the "fmt " chunk. */ - if (pWav->container == drwav_container_rf64) { - drwav_uint8 sizeBytes[8]; - drwav_uint64 bytesRemainingInChunk; - drwav_chunk_header header; - result = drwav__read_chunk_header(pWav->onRead, pWav->pUserData, pWav->container, &cursor, &header); - if (result != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - if (!drwav_fourcc_equal(header.id.fourcc, "ds64")) { - return DRWAV_FALSE; /* Expecting "ds64". */ - } - - bytesRemainingInChunk = header.sizeInBytes + header.paddingSize; - - /* We don't care about the size of the RIFF chunk - skip it. */ - if (!drwav__seek_forward(pWav->onSeek, 8, pWav->pUserData)) { - return DRWAV_FALSE; - } - bytesRemainingInChunk -= 8; - cursor += 8; - - - /* Next 8 bytes is the size of the "data" chunk. */ - if (drwav__on_read(pWav->onRead, pWav->pUserData, sizeBytes, sizeof(sizeBytes), &cursor) != sizeof(sizeBytes)) { - return DRWAV_FALSE; - } - bytesRemainingInChunk -= 8; - dataChunkSize = drwav_bytes_to_u64(sizeBytes); - - - /* Next 8 bytes is the same count which we would usually derived from the FACT chunk if it was available. */ - if (drwav__on_read(pWav->onRead, pWav->pUserData, sizeBytes, sizeof(sizeBytes), &cursor) != sizeof(sizeBytes)) { - return DRWAV_FALSE; - } - bytesRemainingInChunk -= 8; - sampleCountFromFactChunk = drwav_bytes_to_u64(sizeBytes); - - - /* Skip over everything else. */ - if (!drwav__seek_forward(pWav->onSeek, bytesRemainingInChunk, pWav->pUserData)) { - return DRWAV_FALSE; - } - cursor += bytesRemainingInChunk; - } - - - metadataStartPos = cursor; - - /* - Whether or not we are processing metadata controls how we load. We can load more efficiently when - metadata is not being processed, but we also cannot process metadata for Wave64 because I have not - been able to test it. If someone is able to test this and provide a patch I'm happy to enable it. - - Seqential mode cannot support metadata because it involves seeking backwards. - */ - isProcessingMetadata = !sequential && ((flags & DRWAV_WITH_METADATA) != 0); - - /* Don't allow processing of metadata with untested containers. */ - if (pWav->container != drwav_container_riff && pWav->container != drwav_container_rf64) { - isProcessingMetadata = DRWAV_FALSE; - } - - DRWAV_ZERO_MEMORY(&metadataParser, sizeof(metadataParser)); - if (isProcessingMetadata) { - metadataParser.onRead = pWav->onRead; - metadataParser.onSeek = pWav->onSeek; - metadataParser.pReadSeekUserData = pWav->pUserData; - metadataParser.stage = drwav__metadata_parser_stage_count; - } - - - /* - From here on out, chunks might be in any order. In order to robustly handle metadata we'll need - to loop through every chunk and handle them as we find them. In sequential mode we need to get - out of the loop as soon as we find the data chunk because we won't be able to seek back. - */ - for (;;) { /* For each chunk... */ - drwav_chunk_header header; - drwav_uint64 chunkSize; - - result = drwav__read_chunk_header(pWav->onRead, pWav->pUserData, pWav->container, &cursor, &header); - if (result != DRWAV_SUCCESS) { - break; - } - - chunkSize = header.sizeInBytes; - - - /* - Always tell the caller about this chunk. We cannot do this in sequential mode because the - callback is allowed to read from the file, in which case we'll need to rewind. - */ - if (!sequential && onChunk != NULL) { - drwav_uint64 callbackBytesRead = onChunk(pChunkUserData, pWav->onRead, pWav->onSeek, pWav->pUserData, &header, pWav->container, &fmt); - - /* - dr_wav may need to read the contents of the chunk, so we now need to seek back to the position before - we called the callback. - */ - if (callbackBytesRead > 0) { - if (drwav__seek_from_start(pWav->onSeek, cursor, pWav->pUserData) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - } - } - - - /* Explicitly handle known chunks first. */ - - /* "fmt " */ - if (((pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx || pWav->container == drwav_container_rf64) && drwav_fourcc_equal(header.id.fourcc, "fmt ")) || - ((pWav->container == drwav_container_w64) && drwav_guid_equal(header.id.guid, drwavGUID_W64_FMT))) { - drwav_uint8 fmtData[16]; - - foundChunk_fmt = DRWAV_TRUE; - - if (pWav->onRead(pWav->pUserData, fmtData, sizeof(fmtData)) != sizeof(fmtData)) { - return DRWAV_FALSE; - } - cursor += sizeof(fmtData); - - fmt.formatTag = drwav_bytes_to_u16_ex(fmtData + 0, pWav->container); - fmt.channels = drwav_bytes_to_u16_ex(fmtData + 2, pWav->container); - fmt.sampleRate = drwav_bytes_to_u32_ex(fmtData + 4, pWav->container); - fmt.avgBytesPerSec = drwav_bytes_to_u32_ex(fmtData + 8, pWav->container); - fmt.blockAlign = drwav_bytes_to_u16_ex(fmtData + 12, pWav->container); - fmt.bitsPerSample = drwav_bytes_to_u16_ex(fmtData + 14, pWav->container); - - fmt.extendedSize = 0; - fmt.validBitsPerSample = 0; - fmt.channelMask = 0; - DRWAV_ZERO_MEMORY(fmt.subFormat, sizeof(fmt.subFormat)); - - if (header.sizeInBytes > 16) { - drwav_uint8 fmt_cbSize[2]; - int bytesReadSoFar = 0; - - if (pWav->onRead(pWav->pUserData, fmt_cbSize, sizeof(fmt_cbSize)) != sizeof(fmt_cbSize)) { - return DRWAV_FALSE; /* Expecting more data. */ - } - cursor += sizeof(fmt_cbSize); - - bytesReadSoFar = 18; - - fmt.extendedSize = drwav_bytes_to_u16_ex(fmt_cbSize, pWav->container); - if (fmt.extendedSize > 0) { - /* Simple validation. */ - if (fmt.formatTag == DR_WAVE_FORMAT_EXTENSIBLE) { - if (fmt.extendedSize != 22) { - return DRWAV_FALSE; - } - } - - if (fmt.formatTag == DR_WAVE_FORMAT_EXTENSIBLE) { - drwav_uint8 fmtext[22]; - - if (pWav->onRead(pWav->pUserData, fmtext, fmt.extendedSize) != fmt.extendedSize) { - return DRWAV_FALSE; /* Expecting more data. */ - } - - fmt.validBitsPerSample = drwav_bytes_to_u16_ex(fmtext + 0, pWav->container); - fmt.channelMask = drwav_bytes_to_u32_ex(fmtext + 2, pWav->container); - drwav_bytes_to_guid(fmtext + 6, fmt.subFormat); - } else { - if (pWav->onSeek(pWav->pUserData, fmt.extendedSize, drwav_seek_origin_current) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - } - cursor += fmt.extendedSize; - - bytesReadSoFar += fmt.extendedSize; - } - - /* Seek past any leftover bytes. For w64 the leftover will be defined based on the chunk size. */ - if (pWav->onSeek(pWav->pUserData, (int)(header.sizeInBytes - bytesReadSoFar), drwav_seek_origin_current) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - cursor += (header.sizeInBytes - bytesReadSoFar); - } - - if (header.paddingSize > 0) { - if (drwav__seek_forward(pWav->onSeek, header.paddingSize, pWav->pUserData) == DRWAV_FALSE) { - break; - } - cursor += header.paddingSize; - } - - /* Go to the next chunk. Don't include this chunk in metadata. */ - continue; - } - - /* "data" */ - if (((pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx || pWav->container == drwav_container_rf64) && drwav_fourcc_equal(header.id.fourcc, "data")) || - ((pWav->container == drwav_container_w64) && drwav_guid_equal(header.id.guid, drwavGUID_W64_DATA))) { - foundChunk_data = DRWAV_TRUE; - - pWav->dataChunkDataPos = cursor; - - if (pWav->container != drwav_container_rf64) { /* The data chunk size for RF64 will always be set to 0xFFFFFFFF here. It was set to it's true value earlier. */ - dataChunkSize = chunkSize; - } - - /* If we're running in sequential mode, or we're not reading metadata, we have enough now that we can get out of the loop. */ - if (sequential || !isProcessingMetadata) { - break; /* No need to keep reading beyond the data chunk. */ - } else { - chunkSize += header.paddingSize; /* <-- Make sure we seek past the padding. */ - if (drwav__seek_forward(pWav->onSeek, chunkSize, pWav->pUserData) == DRWAV_FALSE) { - break; - } - cursor += chunkSize; - - continue; /* There may be some more metadata to read. */ - } - } - - /* "fact". This is optional. Can use this to get the sample count which is useful for compressed formats. For RF64 we retrieved the sample count from the ds64 chunk earlier. */ - if (((pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx || pWav->container == drwav_container_rf64) && drwav_fourcc_equal(header.id.fourcc, "fact")) || - ((pWav->container == drwav_container_w64) && drwav_guid_equal(header.id.guid, drwavGUID_W64_FACT))) { - if (pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx) { - drwav_uint8 sampleCount[4]; - if (drwav__on_read(pWav->onRead, pWav->pUserData, &sampleCount, 4, &cursor) != 4) { - return DRWAV_FALSE; - } - - chunkSize -= 4; - - /* - The sample count in the "fact" chunk is either unreliable, or I'm not understanding it properly. For now I am only enabling this - for Microsoft ADPCM formats. - */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - sampleCountFromFactChunk = drwav_bytes_to_u32_ex(sampleCount, pWav->container); - } else { - sampleCountFromFactChunk = 0; - } - } else if (pWav->container == drwav_container_w64) { - if (drwav__on_read(pWav->onRead, pWav->pUserData, &sampleCountFromFactChunk, 8, &cursor) != 8) { - return DRWAV_FALSE; - } - - chunkSize -= 8; - } else if (pWav->container == drwav_container_rf64) { - /* We retrieved the sample count from the ds64 chunk earlier so no need to do that here. */ - } - - /* Seek to the next chunk in preparation for the next iteration. */ - chunkSize += header.paddingSize; /* <-- Make sure we seek past the padding. */ - if (drwav__seek_forward(pWav->onSeek, chunkSize, pWav->pUserData) == DRWAV_FALSE) { - break; - } - cursor += chunkSize; - - continue; - } - - - /* "COMM". AIFF/AIFC only. */ - if (pWav->container == drwav_container_aiff && drwav_fourcc_equal(header.id.fourcc, "COMM")) { - drwav_uint8 commData[24]; - drwav_uint32 commDataBytesToRead; - drwav_uint16 channels; - drwav_uint32 frameCount; - drwav_uint16 sampleSizeInBits; - drwav_int64 sampleRate; - drwav_uint16 compressionFormat; - - foundChunk_fmt = DRWAV_TRUE; - - if (isAIFCFormType) { - commDataBytesToRead = 24; - if (header.sizeInBytes < commDataBytesToRead) { - return DRWAV_FALSE; /* Invalid COMM chunk. */ - } - } else { - commDataBytesToRead = 18; - if (header.sizeInBytes != commDataBytesToRead) { - return DRWAV_FALSE; /* INVALID COMM chunk. */ - } - } - - if (drwav__on_read(pWav->onRead, pWav->pUserData, commData, commDataBytesToRead, &cursor) != commDataBytesToRead) { - return DRWAV_FALSE; - } - - - channels = drwav_bytes_to_u16_ex (commData + 0, pWav->container); - frameCount = drwav_bytes_to_u32_ex (commData + 2, pWav->container); - sampleSizeInBits = drwav_bytes_to_u16_ex (commData + 6, pWav->container); - sampleRate = drwav_aiff_extented_to_s64(commData + 8); - - if (sampleRate < 0 || sampleRate > 0xFFFFFFFF) { - return DRWAV_FALSE; /* Invalid sample rate. */ - } - - if (isAIFCFormType) { - const drwav_uint8* type = commData + 18; - - if (drwav_fourcc_equal(type, "NONE")) { - compressionFormat = DR_WAVE_FORMAT_PCM; /* PCM, big-endian. */ - } else if (drwav_fourcc_equal(type, "raw ")) { - compressionFormat = DR_WAVE_FORMAT_PCM; - - /* In my testing, it looks like when the "raw " compression type is used, 8-bit samples should be considered unsigned. */ - if (sampleSizeInBits == 8) { - pWav->aiff.isUnsigned = DRWAV_TRUE; - } - } else if (drwav_fourcc_equal(type, "sowt")) { - compressionFormat = DR_WAVE_FORMAT_PCM; /* PCM, little-endian. */ - pWav->aiff.isLE = DRWAV_TRUE; - } else if (drwav_fourcc_equal(type, "fl32") || drwav_fourcc_equal(type, "fl64") || drwav_fourcc_equal(type, "FL32") || drwav_fourcc_equal(type, "FL64")) { - compressionFormat = DR_WAVE_FORMAT_IEEE_FLOAT; - } else if (drwav_fourcc_equal(type, "alaw") || drwav_fourcc_equal(type, "ALAW")) { - compressionFormat = DR_WAVE_FORMAT_ALAW; - } else if (drwav_fourcc_equal(type, "ulaw") || drwav_fourcc_equal(type, "ULAW")) { - compressionFormat = DR_WAVE_FORMAT_MULAW; - } else if (drwav_fourcc_equal(type, "ima4")) { - compressionFormat = DR_WAVE_FORMAT_DVI_ADPCM; - sampleSizeInBits = 4; - - /* - I haven't been able to figure out how to get correct decoding for IMA ADPCM. Until this is figured out - we'll need to abort when we encounter such an encoding. Advice welcome! - */ - return DRWAV_FALSE; - } else { - return DRWAV_FALSE; /* Unknown or unsupported compression format. Need to abort. */ - } - } else { - compressionFormat = DR_WAVE_FORMAT_PCM; /* It's a standard AIFF form which is always compressed. */ - } - - /* With AIFF we want to use the explicitly defined frame count rather than deriving it from the size of the chunk. */ - aiffFrameCount = frameCount; - - /* We should now have enough information to fill out our fmt structure. */ - fmt.formatTag = compressionFormat; - fmt.channels = channels; - fmt.sampleRate = (drwav_uint32)sampleRate; - fmt.bitsPerSample = sampleSizeInBits; - fmt.blockAlign = (drwav_uint16)(fmt.channels * fmt.bitsPerSample / 8); - fmt.avgBytesPerSec = fmt.blockAlign * fmt.sampleRate; - - if (fmt.blockAlign == 0 && compressionFormat == DR_WAVE_FORMAT_DVI_ADPCM) { - fmt.blockAlign = 34 * fmt.channels; - } - - /* - Weird one. I've seen some alaw and ulaw encoded files that for some reason set the bits per sample to 16 when - it should be 8. To get this working I need to explicitly check for this and change it. - */ - if (compressionFormat == DR_WAVE_FORMAT_ALAW || compressionFormat == DR_WAVE_FORMAT_MULAW) { - if (fmt.bitsPerSample > 8) { - fmt.bitsPerSample = 8; - fmt.blockAlign = fmt.channels; - } - } - - /* In AIFF, samples are padded to 8 byte boundaries. We need to round up our bits per sample here. */ - fmt.bitsPerSample += (fmt.bitsPerSample & 7); - - - /* If the form type is AIFC there will be some additional data in the chunk. We need to seek past it. */ - if (isAIFCFormType) { - if (drwav__seek_forward(pWav->onSeek, (chunkSize - commDataBytesToRead), pWav->pUserData) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - cursor += (chunkSize - commDataBytesToRead); - } - - /* Don't fall through or else we'll end up treating this chunk as metadata which is incorrect. */ - continue; - } - - - /* "SSND". AIFF/AIFC only. This is the AIFF equivalent of the "data" chunk. */ - if (pWav->container == drwav_container_aiff && drwav_fourcc_equal(header.id.fourcc, "SSND")) { - drwav_uint8 offsetAndBlockSizeData[8]; - drwav_uint32 offset; - - foundChunk_data = DRWAV_TRUE; - - if (drwav__on_read(pWav->onRead, pWav->pUserData, offsetAndBlockSizeData, sizeof(offsetAndBlockSizeData), &cursor) != sizeof(offsetAndBlockSizeData)) { - return DRWAV_FALSE; - } - - /* We need to seek forward by the offset. */ - offset = drwav_bytes_to_u32_ex(offsetAndBlockSizeData + 0, pWav->container); - if (drwav__seek_forward(pWav->onSeek, offset, pWav->pUserData) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - cursor += offset; - - pWav->dataChunkDataPos = cursor; - dataChunkSize = chunkSize; - - /* If we're running in sequential mode, or we're not reading metadata, we have enough now that we can get out of the loop. */ - if (sequential || !isProcessingMetadata) { - break; /* No need to keep reading beyond the data chunk. */ - } else { - if (drwav__seek_forward(pWav->onSeek, chunkSize, pWav->pUserData) == DRWAV_FALSE) { - break; - } - cursor += chunkSize; - - continue; /* There may be some more metadata to read. */ - } - } - - - - /* Getting here means it's not a chunk that we care about internally, but might need to be handled as metadata by the caller. */ - if (isProcessingMetadata) { - drwav__metadata_process_chunk(&metadataParser, &header, drwav_metadata_type_all_including_unknown); - - /* Go back to the start of the chunk so we can normalize the position of the cursor. */ - if (drwav__seek_from_start(pWav->onSeek, cursor, pWav->pUserData) == DRWAV_FALSE) { - break; /* Failed to seek. Can't reliable read the remaining chunks. Get out. */ - } - } - - - /* Make sure we skip past the content of this chunk before we go to the next one. */ - chunkSize += header.paddingSize; /* <-- Make sure we seek past the padding. */ - if (drwav__seek_forward(pWav->onSeek, chunkSize, pWav->pUserData) == DRWAV_FALSE) { - break; - } - cursor += chunkSize; - } - - /* There's some mandatory chunks that must exist. If they were not found in the iteration above we must abort. */ - if (!foundChunk_fmt || !foundChunk_data) { - return DRWAV_FALSE; - } - - /* Basic validation. */ - if ((fmt.sampleRate == 0 || fmt.sampleRate > DRWAV_MAX_SAMPLE_RATE ) || - (fmt.channels == 0 || fmt.channels > DRWAV_MAX_CHANNELS ) || - (fmt.bitsPerSample == 0 || fmt.bitsPerSample > DRWAV_MAX_BITS_PER_SAMPLE) || - fmt.blockAlign == 0) { - return DRWAV_FALSE; /* Probably an invalid WAV file. */ - } - - /* Translate the internal format. */ - translatedFormatTag = fmt.formatTag; - if (translatedFormatTag == DR_WAVE_FORMAT_EXTENSIBLE) { - translatedFormatTag = drwav_bytes_to_u16_ex(fmt.subFormat + 0, pWav->container); - } - - /* We may have moved passed the data chunk. If so we need to move back. If running in sequential mode we can assume we are already sitting on the data chunk. */ - if (!sequential) { - if (!drwav__seek_from_start(pWav->onSeek, pWav->dataChunkDataPos, pWav->pUserData)) { - return DRWAV_FALSE; - } - cursor = pWav->dataChunkDataPos; - } - - - /* - At this point we should have done the initial parsing of each of our chunks, but we now need to - do a second pass to extract the actual contents of the metadata (the first pass just calculated - the length of the memory allocation). - - We only do this if we've actually got metadata to parse. - */ - if (isProcessingMetadata && metadataParser.metadataCount > 0) { - if (drwav__seek_from_start(pWav->onSeek, metadataStartPos, pWav->pUserData) == DRWAV_FALSE) { - return DRWAV_FALSE; - } - - result = drwav__metadata_alloc(&metadataParser, &pWav->allocationCallbacks); - if (result != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - metadataParser.stage = drwav__metadata_parser_stage_read; - - for (;;) { - drwav_chunk_header header; - drwav_uint64 metadataBytesRead; - - result = drwav__read_chunk_header(pWav->onRead, pWav->pUserData, pWav->container, &cursor, &header); - if (result != DRWAV_SUCCESS) { - break; - } - - metadataBytesRead = drwav__metadata_process_chunk(&metadataParser, &header, drwav_metadata_type_all_including_unknown); - - /* Move to the end of the chunk so we can keep iterating. */ - if (drwav__seek_forward(pWav->onSeek, (header.sizeInBytes + header.paddingSize) - metadataBytesRead, pWav->pUserData) == DRWAV_FALSE) { - drwav_free(metadataParser.pMetadata, &pWav->allocationCallbacks); - return DRWAV_FALSE; - } - } - - /* Getting here means we're finished parsing the metadata. */ - pWav->pMetadata = metadataParser.pMetadata; - pWav->metadataCount = metadataParser.metadataCount; - } - - - /* At this point we should be sitting on the first byte of the raw audio data. */ - - /* - I've seen a WAV file in the wild where a RIFF-ecapsulated file has the size of it's "RIFF" and - "data" chunks set to 0xFFFFFFFF when the file is definitely not that big. In this case we're - going to have to calculate the size by reading and discarding bytes, and then seeking back. We - cannot do this in sequential mode. We just assume that the rest of the file is audio data. - */ - if (dataChunkSize == 0xFFFFFFFF && (pWav->container == drwav_container_riff || pWav->container == drwav_container_rifx) && pWav->isSequentialWrite == DRWAV_FALSE) { - dataChunkSize = 0; - - for (;;) { - drwav_uint8 temp[4096]; - size_t bytesRead = pWav->onRead(pWav->pUserData, temp, sizeof(temp)); - dataChunkSize += bytesRead; - - if (bytesRead < sizeof(temp)) { - break; - } - } - } - - if (drwav__seek_from_start(pWav->onSeek, pWav->dataChunkDataPos, pWav->pUserData) == DRWAV_FALSE) { - drwav_free(pWav->pMetadata, &pWav->allocationCallbacks); - return DRWAV_FALSE; - } - - - pWav->fmt = fmt; - pWav->sampleRate = fmt.sampleRate; - pWav->channels = fmt.channels; - pWav->bitsPerSample = fmt.bitsPerSample; - pWav->bytesRemaining = dataChunkSize; - pWav->translatedFormatTag = translatedFormatTag; - pWav->dataChunkDataSize = dataChunkSize; - - if (sampleCountFromFactChunk != 0) { - pWav->totalPCMFrameCount = sampleCountFromFactChunk; - } else if (aiffFrameCount != 0) { - pWav->totalPCMFrameCount = aiffFrameCount; - } else { - drwav_uint32 bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - drwav_free(pWav->pMetadata, &pWav->allocationCallbacks); - return DRWAV_FALSE; /* Invalid file. */ - } - - pWav->totalPCMFrameCount = dataChunkSize / bytesPerFrame; - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - drwav_uint64 totalBlockHeaderSizeInBytes; - drwav_uint64 blockCount = dataChunkSize / fmt.blockAlign; - - /* Make sure any trailing partial block is accounted for. */ - if ((blockCount * fmt.blockAlign) < dataChunkSize) { - blockCount += 1; - } - - /* We decode two samples per byte. There will be blockCount headers in the data chunk. This is enough to know how to calculate the total PCM frame count. */ - totalBlockHeaderSizeInBytes = blockCount * (6*fmt.channels); - pWav->totalPCMFrameCount = ((dataChunkSize - totalBlockHeaderSizeInBytes) * 2) / fmt.channels; - } - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - drwav_uint64 totalBlockHeaderSizeInBytes; - drwav_uint64 blockCount = dataChunkSize / fmt.blockAlign; - - /* Make sure any trailing partial block is accounted for. */ - if ((blockCount * fmt.blockAlign) < dataChunkSize) { - blockCount += 1; - } - - /* We decode two samples per byte. There will be blockCount headers in the data chunk. This is enough to know how to calculate the total PCM frame count. */ - totalBlockHeaderSizeInBytes = blockCount * (4*fmt.channels); - pWav->totalPCMFrameCount = ((dataChunkSize - totalBlockHeaderSizeInBytes) * 2) / fmt.channels; - - /* The header includes a decoded sample for each channel which acts as the initial predictor sample. */ - pWav->totalPCMFrameCount += blockCount; - } - } - - /* Some formats only support a certain number of channels. */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM || pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - if (pWav->channels > 2) { - drwav_free(pWav->pMetadata, &pWav->allocationCallbacks); - return DRWAV_FALSE; - } - } - - /* The number of bytes per frame must be known. If not, it's an invalid file and not decodable. */ - if (drwav_get_bytes_per_pcm_frame(pWav) == 0) { - drwav_free(pWav->pMetadata, &pWav->allocationCallbacks); - return DRWAV_FALSE; - } - -#ifdef DR_WAV_LIBSNDFILE_COMPAT - /* - I use libsndfile as a benchmark for testing, however in the version I'm using (from the Windows installer on the libsndfile website), - it appears the total sample count libsndfile uses for MS-ADPCM is incorrect. It would seem they are computing the total sample count - from the number of blocks, however this results in the inclusion of extra silent samples at the end of the last block. The correct - way to know the total sample count is to inspect the "fact" chunk, which should always be present for compressed formats, and should - always include the sample count. This little block of code below is only used to emulate the libsndfile logic so I can properly run my - correctness tests against libsndfile, and is disabled by default. - */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - drwav_uint64 blockCount = dataChunkSize / fmt.blockAlign; - pWav->totalPCMFrameCount = (((blockCount * (fmt.blockAlign - (6*pWav->channels))) * 2)) / fmt.channels; /* x2 because two samples per byte. */ - } - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - drwav_uint64 blockCount = dataChunkSize / fmt.blockAlign; - pWav->totalPCMFrameCount = (((blockCount * (fmt.blockAlign - (4*pWav->channels))) * 2) + (blockCount * pWav->channels)) / fmt.channels; - } -#endif - - return DRWAV_TRUE; -} - -DRWAV_API drwav_bool32 drwav_init(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_ex(pWav, onRead, onSeek, NULL, pUserData, NULL, 0, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_ex(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, drwav_chunk_proc onChunk, void* pReadSeekUserData, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (!drwav_preinit(pWav, onRead, onSeek, pReadSeekUserData, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - return drwav_init__internal(pWav, onChunk, pChunkUserData, flags); -} - -DRWAV_API drwav_bool32 drwav_init_with_metadata(drwav* pWav, drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (!drwav_preinit(pWav, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - return drwav_init__internal(pWav, NULL, NULL, flags | DRWAV_WITH_METADATA); -} - -DRWAV_API drwav_metadata* drwav_take_ownership_of_metadata(drwav* pWav) -{ - drwav_metadata *result = pWav->pMetadata; - - pWav->pMetadata = NULL; - pWav->metadataCount = 0; - - return result; -} - - -DRWAV_PRIVATE size_t drwav__write(drwav* pWav, const void* pData, size_t dataSize) -{ - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - /* Generic write. Assumes no byte reordering required. */ - return pWav->onWrite(pWav->pUserData, pData, dataSize); -} - -DRWAV_PRIVATE size_t drwav__write_byte(drwav* pWav, drwav_uint8 byte) -{ - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - return pWav->onWrite(pWav->pUserData, &byte, 1); -} - -DRWAV_PRIVATE size_t drwav__write_u16ne_to_le(drwav* pWav, drwav_uint16 value) -{ - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - if (!drwav__is_little_endian()) { - value = drwav__bswap16(value); - } - - return drwav__write(pWav, &value, 2); -} - -DRWAV_PRIVATE size_t drwav__write_u32ne_to_le(drwav* pWav, drwav_uint32 value) -{ - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - if (!drwav__is_little_endian()) { - value = drwav__bswap32(value); - } - - return drwav__write(pWav, &value, 4); -} - -DRWAV_PRIVATE size_t drwav__write_u64ne_to_le(drwav* pWav, drwav_uint64 value) -{ - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - if (!drwav__is_little_endian()) { - value = drwav__bswap64(value); - } - - return drwav__write(pWav, &value, 8); -} - -DRWAV_PRIVATE size_t drwav__write_f32ne_to_le(drwav* pWav, float value) -{ - union { - drwav_uint32 u32; - float f32; - } u; - - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->onWrite != NULL); - - u.f32 = value; - - if (!drwav__is_little_endian()) { - u.u32 = drwav__bswap32(u.u32); - } - - return drwav__write(pWav, &u.u32, 4); -} - -DRWAV_PRIVATE size_t drwav__write_or_count(drwav* pWav, const void* pData, size_t dataSize) -{ - if (pWav == NULL) { - return dataSize; - } - - return drwav__write(pWav, pData, dataSize); -} - -DRWAV_PRIVATE size_t drwav__write_or_count_byte(drwav* pWav, drwav_uint8 byte) -{ - if (pWav == NULL) { - return 1; - } - - return drwav__write_byte(pWav, byte); -} - -DRWAV_PRIVATE size_t drwav__write_or_count_u16ne_to_le(drwav* pWav, drwav_uint16 value) -{ - if (pWav == NULL) { - return 2; - } - - return drwav__write_u16ne_to_le(pWav, value); -} - -DRWAV_PRIVATE size_t drwav__write_or_count_u32ne_to_le(drwav* pWav, drwav_uint32 value) -{ - if (pWav == NULL) { - return 4; - } - - return drwav__write_u32ne_to_le(pWav, value); -} - -#if 0 /* Unused for now. */ -DRWAV_PRIVATE size_t drwav__write_or_count_u64ne_to_le(drwav* pWav, drwav_uint64 value) -{ - if (pWav == NULL) { - return 8; - } - - return drwav__write_u64ne_to_le(pWav, value); -} -#endif - -DRWAV_PRIVATE size_t drwav__write_or_count_f32ne_to_le(drwav* pWav, float value) -{ - if (pWav == NULL) { - return 4; - } - - return drwav__write_f32ne_to_le(pWav, value); -} - -DRWAV_PRIVATE size_t drwav__write_or_count_string_to_fixed_size_buf(drwav* pWav, char* str, size_t bufFixedSize) -{ - size_t len; - - if (pWav == NULL) { - return bufFixedSize; - } - - len = drwav__strlen_clamped(str, bufFixedSize); - drwav__write_or_count(pWav, str, len); - - if (len < bufFixedSize) { - size_t i; - for (i = 0; i < bufFixedSize - len; ++i) { - drwav__write_byte(pWav, 0); - } - } - - return bufFixedSize; -} - - -/* pWav can be NULL meaning just count the bytes that would be written. */ -DRWAV_PRIVATE size_t drwav__write_or_count_metadata(drwav* pWav, drwav_metadata* pMetadatas, drwav_uint32 metadataCount) -{ - size_t bytesWritten = 0; - drwav_bool32 hasListAdtl = DRWAV_FALSE; - drwav_bool32 hasListInfo = DRWAV_FALSE; - drwav_uint32 iMetadata; - - if (pMetadatas == NULL || metadataCount == 0) { - return 0; - } - - for (iMetadata = 0; iMetadata < metadataCount; ++iMetadata) { - drwav_metadata* pMetadata = &pMetadatas[iMetadata]; - drwav_uint32 chunkSize = 0; - - if ((pMetadata->type & drwav_metadata_type_list_all_info_strings) || (pMetadata->type == drwav_metadata_type_unknown && pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_info_list)) { - hasListInfo = DRWAV_TRUE; - } - - if ((pMetadata->type & drwav_metadata_type_list_all_adtl) || (pMetadata->type == drwav_metadata_type_unknown && pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_adtl_list)) { - hasListAdtl = DRWAV_TRUE; - } - - switch (pMetadata->type) { - case drwav_metadata_type_smpl: - { - drwav_uint32 iLoop; - - chunkSize = DRWAV_SMPL_BYTES + DRWAV_SMPL_LOOP_BYTES * pMetadata->data.smpl.sampleLoopCount + pMetadata->data.smpl.samplerSpecificDataSizeInBytes; - - bytesWritten += drwav__write_or_count(pWav, "smpl", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.manufacturerId); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.productId); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.samplePeriodNanoseconds); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.midiUnityNote); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.midiPitchFraction); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.smpteFormat); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.smpteOffset); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.sampleLoopCount); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.samplerSpecificDataSizeInBytes); - - for (iLoop = 0; iLoop < pMetadata->data.smpl.sampleLoopCount; ++iLoop) { - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].cuePointId); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].type); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].firstSampleByteOffset); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].lastSampleByteOffset); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].sampleFraction); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.smpl.pLoops[iLoop].playCount); - } - - if (pMetadata->data.smpl.samplerSpecificDataSizeInBytes > 0) { - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.smpl.pSamplerSpecificData, pMetadata->data.smpl.samplerSpecificDataSizeInBytes); - } - } break; - - case drwav_metadata_type_inst: - { - chunkSize = DRWAV_INST_BYTES; - - bytesWritten += drwav__write_or_count(pWav, "inst", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.midiUnityNote, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.fineTuneCents, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.gainDecibels, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.lowNote, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.highNote, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.lowVelocity, 1); - bytesWritten += drwav__write_or_count(pWav, &pMetadata->data.inst.highVelocity, 1); - } break; - - case drwav_metadata_type_cue: - { - drwav_uint32 iCuePoint; - - chunkSize = DRWAV_CUE_BYTES + DRWAV_CUE_POINT_BYTES * pMetadata->data.cue.cuePointCount; - - bytesWritten += drwav__write_or_count(pWav, "cue ", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.cuePointCount); - for (iCuePoint = 0; iCuePoint < pMetadata->data.cue.cuePointCount; ++iCuePoint) { - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].id); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].playOrderPosition); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].dataChunkId, 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].chunkStart); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].blockStart); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.cue.pCuePoints[iCuePoint].sampleByteOffset); - } - } break; - - case drwav_metadata_type_acid: - { - chunkSize = DRWAV_ACID_BYTES; - - bytesWritten += drwav__write_or_count(pWav, "acid", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.acid.flags); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.acid.midiUnityNote); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.acid.reserved1); - bytesWritten += drwav__write_or_count_f32ne_to_le(pWav, pMetadata->data.acid.reserved2); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.acid.numBeats); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.acid.meterDenominator); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.acid.meterNumerator); - bytesWritten += drwav__write_or_count_f32ne_to_le(pWav, pMetadata->data.acid.tempo); - } break; - - case drwav_metadata_type_bext: - { - char reservedBuf[DRWAV_BEXT_RESERVED_BYTES]; - drwav_uint32 timeReferenceLow; - drwav_uint32 timeReferenceHigh; - - chunkSize = DRWAV_BEXT_BYTES + pMetadata->data.bext.codingHistorySize; - - bytesWritten += drwav__write_or_count(pWav, "bext", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - - bytesWritten += drwav__write_or_count_string_to_fixed_size_buf(pWav, pMetadata->data.bext.pDescription, DRWAV_BEXT_DESCRIPTION_BYTES); - bytesWritten += drwav__write_or_count_string_to_fixed_size_buf(pWav, pMetadata->data.bext.pOriginatorName, DRWAV_BEXT_ORIGINATOR_NAME_BYTES); - bytesWritten += drwav__write_or_count_string_to_fixed_size_buf(pWav, pMetadata->data.bext.pOriginatorReference, DRWAV_BEXT_ORIGINATOR_REF_BYTES); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.bext.pOriginationDate, sizeof(pMetadata->data.bext.pOriginationDate)); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.bext.pOriginationTime, sizeof(pMetadata->data.bext.pOriginationTime)); - - timeReferenceLow = (drwav_uint32)(pMetadata->data.bext.timeReference & 0xFFFFFFFF); - timeReferenceHigh = (drwav_uint32)(pMetadata->data.bext.timeReference >> 32); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, timeReferenceLow); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, timeReferenceHigh); - - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.version); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.bext.pUMID, DRWAV_BEXT_UMID_BYTES); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.loudnessValue); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.loudnessRange); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.maxTruePeakLevel); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.maxMomentaryLoudness); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.bext.maxShortTermLoudness); - - DRWAV_ZERO_MEMORY(reservedBuf, sizeof(reservedBuf)); - bytesWritten += drwav__write_or_count(pWav, reservedBuf, sizeof(reservedBuf)); - - if (pMetadata->data.bext.codingHistorySize > 0) { - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.bext.pCodingHistory, pMetadata->data.bext.codingHistorySize); - } - } break; - - case drwav_metadata_type_unknown: - { - if (pMetadata->data.unknown.chunkLocation == drwav_metadata_location_top_level) { - chunkSize = pMetadata->data.unknown.dataSizeInBytes; - - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.id, 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.pData, pMetadata->data.unknown.dataSizeInBytes); - } - } break; - - default: break; - } - if ((chunkSize % 2) != 0) { - bytesWritten += drwav__write_or_count_byte(pWav, 0); - } - } - - if (hasListInfo) { - drwav_uint32 chunkSize = 4; /* Start with 4 bytes for "INFO". */ - for (iMetadata = 0; iMetadata < metadataCount; ++iMetadata) { - drwav_metadata* pMetadata = &pMetadatas[iMetadata]; - - if ((pMetadata->type & drwav_metadata_type_list_all_info_strings)) { - chunkSize += 8; /* For id and string size. */ - chunkSize += pMetadata->data.infoText.stringLength + 1; /* Include null terminator. */ - } else if (pMetadata->type == drwav_metadata_type_unknown && pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_info_list) { - chunkSize += 8; /* For id string size. */ - chunkSize += pMetadata->data.unknown.dataSizeInBytes; - } - - if ((chunkSize % 2) != 0) { - chunkSize += 1; - } - } - - bytesWritten += drwav__write_or_count(pWav, "LIST", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count(pWav, "INFO", 4); - - for (iMetadata = 0; iMetadata < metadataCount; ++iMetadata) { - drwav_metadata* pMetadata = &pMetadatas[iMetadata]; - drwav_uint32 subchunkSize = 0; - - if (pMetadata->type & drwav_metadata_type_list_all_info_strings) { - const char* pID = NULL; - - switch (pMetadata->type) { - case drwav_metadata_type_list_info_software: pID = "ISFT"; break; - case drwav_metadata_type_list_info_copyright: pID = "ICOP"; break; - case drwav_metadata_type_list_info_title: pID = "INAM"; break; - case drwav_metadata_type_list_info_artist: pID = "IART"; break; - case drwav_metadata_type_list_info_comment: pID = "ICMT"; break; - case drwav_metadata_type_list_info_date: pID = "ICRD"; break; - case drwav_metadata_type_list_info_genre: pID = "IGNR"; break; - case drwav_metadata_type_list_info_album: pID = "IPRD"; break; - case drwav_metadata_type_list_info_tracknumber: pID = "ITRK"; break; - default: break; - } - - DRWAV_ASSERT(pID != NULL); - - if (pMetadata->data.infoText.stringLength) { - subchunkSize = pMetadata->data.infoText.stringLength + 1; - bytesWritten += drwav__write_or_count(pWav, pID, 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, subchunkSize); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.infoText.pString, pMetadata->data.infoText.stringLength); - bytesWritten += drwav__write_or_count_byte(pWav, '\0'); - } - } else if (pMetadata->type == drwav_metadata_type_unknown && pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_info_list) { - if (pMetadata->data.unknown.dataSizeInBytes) { - subchunkSize = pMetadata->data.unknown.dataSizeInBytes; - - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.id, 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.unknown.dataSizeInBytes); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.pData, subchunkSize); - } - } - - if ((subchunkSize % 2) != 0) { - bytesWritten += drwav__write_or_count_byte(pWav, 0); - } - } - } - - if (hasListAdtl) { - drwav_uint32 chunkSize = 4; /* start with 4 bytes for "adtl" */ - - for (iMetadata = 0; iMetadata < metadataCount; ++iMetadata) { - drwav_metadata* pMetadata = &pMetadatas[iMetadata]; - - switch (pMetadata->type) - { - case drwav_metadata_type_list_label: - case drwav_metadata_type_list_note: - { - chunkSize += 8; /* for id and chunk size */ - chunkSize += DRWAV_LIST_LABEL_OR_NOTE_BYTES; - - if (pMetadata->data.labelOrNote.stringLength > 0) { - chunkSize += pMetadata->data.labelOrNote.stringLength + 1; - } - } break; - - case drwav_metadata_type_list_labelled_cue_region: - { - chunkSize += 8; /* for id and chunk size */ - chunkSize += DRWAV_LIST_LABELLED_TEXT_BYTES; - - if (pMetadata->data.labelledCueRegion.stringLength > 0) { - chunkSize += pMetadata->data.labelledCueRegion.stringLength + 1; - } - } break; - - case drwav_metadata_type_unknown: - { - if (pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_adtl_list) { - chunkSize += 8; /* for id and chunk size */ - chunkSize += pMetadata->data.unknown.dataSizeInBytes; - } - } break; - - default: break; - } - - if ((chunkSize % 2) != 0) { - chunkSize += 1; - } - } - - bytesWritten += drwav__write_or_count(pWav, "LIST", 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, chunkSize); - bytesWritten += drwav__write_or_count(pWav, "adtl", 4); - - for (iMetadata = 0; iMetadata < metadataCount; ++iMetadata) { - drwav_metadata* pMetadata = &pMetadatas[iMetadata]; - drwav_uint32 subchunkSize = 0; - - switch (pMetadata->type) - { - case drwav_metadata_type_list_label: - case drwav_metadata_type_list_note: - { - if (pMetadata->data.labelOrNote.stringLength > 0) { - const char *pID = NULL; - - if (pMetadata->type == drwav_metadata_type_list_label) { - pID = "labl"; - } - else if (pMetadata->type == drwav_metadata_type_list_note) { - pID = "note"; - } - - DRWAV_ASSERT(pID != NULL); - DRWAV_ASSERT(pMetadata->data.labelOrNote.pString != NULL); - - subchunkSize = DRWAV_LIST_LABEL_OR_NOTE_BYTES; - - bytesWritten += drwav__write_or_count(pWav, pID, 4); - subchunkSize += pMetadata->data.labelOrNote.stringLength + 1; - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, subchunkSize); - - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.labelOrNote.cuePointId); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.labelOrNote.pString, pMetadata->data.labelOrNote.stringLength); - bytesWritten += drwav__write_or_count_byte(pWav, '\0'); - } - } break; - - case drwav_metadata_type_list_labelled_cue_region: - { - subchunkSize = DRWAV_LIST_LABELLED_TEXT_BYTES; - - bytesWritten += drwav__write_or_count(pWav, "ltxt", 4); - if (pMetadata->data.labelledCueRegion.stringLength > 0) { - subchunkSize += pMetadata->data.labelledCueRegion.stringLength + 1; - } - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, subchunkSize); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.labelledCueRegion.cuePointId); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, pMetadata->data.labelledCueRegion.sampleLength); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.labelledCueRegion.purposeId, 4); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.labelledCueRegion.country); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.labelledCueRegion.language); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.labelledCueRegion.dialect); - bytesWritten += drwav__write_or_count_u16ne_to_le(pWav, pMetadata->data.labelledCueRegion.codePage); - - if (pMetadata->data.labelledCueRegion.stringLength > 0) { - DRWAV_ASSERT(pMetadata->data.labelledCueRegion.pString != NULL); - - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.labelledCueRegion.pString, pMetadata->data.labelledCueRegion.stringLength); - bytesWritten += drwav__write_or_count_byte(pWav, '\0'); - } - } break; - - case drwav_metadata_type_unknown: - { - if (pMetadata->data.unknown.chunkLocation == drwav_metadata_location_inside_adtl_list) { - subchunkSize = pMetadata->data.unknown.dataSizeInBytes; - - DRWAV_ASSERT(pMetadata->data.unknown.pData != NULL); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.id, 4); - bytesWritten += drwav__write_or_count_u32ne_to_le(pWav, subchunkSize); - bytesWritten += drwav__write_or_count(pWav, pMetadata->data.unknown.pData, subchunkSize); - } - } break; - - default: break; - } - - if ((subchunkSize % 2) != 0) { - bytesWritten += drwav__write_or_count_byte(pWav, 0); - } - } - } - - DRWAV_ASSERT((bytesWritten % 2) == 0); - - return bytesWritten; -} - -DRWAV_PRIVATE drwav_uint32 drwav__riff_chunk_size_riff(drwav_uint64 dataChunkSize, drwav_metadata* pMetadata, drwav_uint32 metadataCount) -{ - drwav_uint64 chunkSize = 4 + 24 + (drwav_uint64)drwav__write_or_count_metadata(NULL, pMetadata, metadataCount) + 8 + dataChunkSize + drwav__chunk_padding_size_riff(dataChunkSize); /* 4 = "WAVE". 24 = "fmt " chunk. 8 = "data" + u32 data size. */ - if (chunkSize > 0xFFFFFFFFUL) { - chunkSize = 0xFFFFFFFFUL; - } - - return (drwav_uint32)chunkSize; /* Safe cast due to the clamp above. */ -} - -DRWAV_PRIVATE drwav_uint32 drwav__data_chunk_size_riff(drwav_uint64 dataChunkSize) -{ - if (dataChunkSize <= 0xFFFFFFFFUL) { - return (drwav_uint32)dataChunkSize; - } else { - return 0xFFFFFFFFUL; - } -} - -DRWAV_PRIVATE drwav_uint64 drwav__riff_chunk_size_w64(drwav_uint64 dataChunkSize) -{ - drwav_uint64 dataSubchunkPaddingSize = drwav__chunk_padding_size_w64(dataChunkSize); - - return 80 + 24 + dataChunkSize + dataSubchunkPaddingSize; /* +24 because W64 includes the size of the GUID and size fields. */ -} - -DRWAV_PRIVATE drwav_uint64 drwav__data_chunk_size_w64(drwav_uint64 dataChunkSize) -{ - return 24 + dataChunkSize; /* +24 because W64 includes the size of the GUID and size fields. */ -} - -DRWAV_PRIVATE drwav_uint64 drwav__riff_chunk_size_rf64(drwav_uint64 dataChunkSize, drwav_metadata *metadata, drwav_uint32 numMetadata) -{ - drwav_uint64 chunkSize = 4 + 36 + 24 + (drwav_uint64)drwav__write_or_count_metadata(NULL, metadata, numMetadata) + 8 + dataChunkSize + drwav__chunk_padding_size_riff(dataChunkSize); /* 4 = "WAVE". 36 = "ds64" chunk. 24 = "fmt " chunk. 8 = "data" + u32 data size. */ - if (chunkSize > 0xFFFFFFFFUL) { - chunkSize = 0xFFFFFFFFUL; - } - - return chunkSize; -} - -DRWAV_PRIVATE drwav_uint64 drwav__data_chunk_size_rf64(drwav_uint64 dataChunkSize) -{ - return dataChunkSize; -} - - - -DRWAV_PRIVATE drwav_bool32 drwav_preinit_write(drwav* pWav, const drwav_data_format* pFormat, drwav_bool32 isSequential, drwav_write_proc onWrite, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pWav == NULL || onWrite == NULL) { - return DRWAV_FALSE; - } - - if (!isSequential && onSeek == NULL) { - return DRWAV_FALSE; /* <-- onSeek is required when in non-sequential mode. */ - } - - /* Not currently supporting compressed formats. Will need to add support for the "fact" chunk before we enable this. */ - if (pFormat->format == DR_WAVE_FORMAT_EXTENSIBLE) { - return DRWAV_FALSE; - } - if (pFormat->format == DR_WAVE_FORMAT_ADPCM || pFormat->format == DR_WAVE_FORMAT_DVI_ADPCM) { - return DRWAV_FALSE; - } - - DRWAV_ZERO_MEMORY(pWav, sizeof(*pWav)); - pWav->onWrite = onWrite; - pWav->onSeek = onSeek; - pWav->pUserData = pUserData; - pWav->allocationCallbacks = drwav_copy_allocation_callbacks_or_defaults(pAllocationCallbacks); - - if (pWav->allocationCallbacks.onFree == NULL || (pWav->allocationCallbacks.onMalloc == NULL && pWav->allocationCallbacks.onRealloc == NULL)) { - return DRWAV_FALSE; /* Invalid allocation callbacks. */ - } - - pWav->fmt.formatTag = (drwav_uint16)pFormat->format; - pWav->fmt.channels = (drwav_uint16)pFormat->channels; - pWav->fmt.sampleRate = pFormat->sampleRate; - pWav->fmt.avgBytesPerSec = (drwav_uint32)((pFormat->bitsPerSample * pFormat->sampleRate * pFormat->channels) / 8); - pWav->fmt.blockAlign = (drwav_uint16)((pFormat->channels * pFormat->bitsPerSample) / 8); - pWav->fmt.bitsPerSample = (drwav_uint16)pFormat->bitsPerSample; - pWav->fmt.extendedSize = 0; - pWav->isSequentialWrite = isSequential; - - return DRWAV_TRUE; -} - - -DRWAV_PRIVATE drwav_bool32 drwav_init_write__internal(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount) -{ - /* The function assumes drwav_preinit_write() was called beforehand. */ - - size_t runningPos = 0; - drwav_uint64 initialDataChunkSize = 0; - drwav_uint64 chunkSizeFMT; - - /* - The initial values for the "RIFF" and "data" chunks depends on whether or not we are initializing in sequential mode or not. In - sequential mode we set this to its final values straight away since they can be calculated from the total sample count. In non- - sequential mode we initialize it all to zero and fill it out in drwav_uninit() using a backwards seek. - */ - if (pWav->isSequentialWrite) { - initialDataChunkSize = (totalSampleCount * pWav->fmt.bitsPerSample) / 8; - - /* - The RIFF container has a limit on the number of samples. drwav is not allowing this. There's no practical limits for Wave64 - so for the sake of simplicity I'm not doing any validation for that. - */ - if (pFormat->container == drwav_container_riff) { - if (initialDataChunkSize > (0xFFFFFFFFUL - 36)) { - return DRWAV_FALSE; /* Not enough room to store every sample. */ - } - } - } - - pWav->dataChunkDataSizeTargetWrite = initialDataChunkSize; - - - /* "RIFF" chunk. */ - if (pFormat->container == drwav_container_riff) { - drwav_uint32 chunkSizeRIFF = 28 + (drwav_uint32)initialDataChunkSize; /* +28 = "WAVE" + [sizeof "fmt " chunk] */ - runningPos += drwav__write(pWav, "RIFF", 4); - runningPos += drwav__write_u32ne_to_le(pWav, chunkSizeRIFF); - runningPos += drwav__write(pWav, "WAVE", 4); - } else if (pFormat->container == drwav_container_w64) { - drwav_uint64 chunkSizeRIFF = 80 + 24 + initialDataChunkSize; /* +24 because W64 includes the size of the GUID and size fields. */ - runningPos += drwav__write(pWav, drwavGUID_W64_RIFF, 16); - runningPos += drwav__write_u64ne_to_le(pWav, chunkSizeRIFF); - runningPos += drwav__write(pWav, drwavGUID_W64_WAVE, 16); - } else if (pFormat->container == drwav_container_rf64) { - runningPos += drwav__write(pWav, "RF64", 4); - runningPos += drwav__write_u32ne_to_le(pWav, 0xFFFFFFFF); /* Always 0xFFFFFFFF for RF64. Set to a proper value in the "ds64" chunk. */ - runningPos += drwav__write(pWav, "WAVE", 4); - } else { - return DRWAV_FALSE; /* Container not supported for writing. */ - } - - - /* "ds64" chunk (RF64 only). */ - if (pFormat->container == drwav_container_rf64) { - drwav_uint32 initialds64ChunkSize = 28; /* 28 = [Size of RIFF (8 bytes)] + [Size of DATA (8 bytes)] + [Sample Count (8 bytes)] + [Table Length (4 bytes)]. Table length always set to 0. */ - drwav_uint64 initialRiffChunkSize = 8 + initialds64ChunkSize + initialDataChunkSize; /* +8 for the ds64 header. */ - - runningPos += drwav__write(pWav, "ds64", 4); - runningPos += drwav__write_u32ne_to_le(pWav, initialds64ChunkSize); /* Size of ds64. */ - runningPos += drwav__write_u64ne_to_le(pWav, initialRiffChunkSize); /* Size of RIFF. Set to true value at the end. */ - runningPos += drwav__write_u64ne_to_le(pWav, initialDataChunkSize); /* Size of DATA. Set to true value at the end. */ - runningPos += drwav__write_u64ne_to_le(pWav, totalSampleCount); /* Sample count. */ - runningPos += drwav__write_u32ne_to_le(pWav, 0); /* Table length. Always set to zero in our case since we're not doing any other chunks than "DATA". */ - } - - - /* "fmt " chunk. */ - if (pFormat->container == drwav_container_riff || pFormat->container == drwav_container_rf64) { - chunkSizeFMT = 16; - runningPos += drwav__write(pWav, "fmt ", 4); - runningPos += drwav__write_u32ne_to_le(pWav, (drwav_uint32)chunkSizeFMT); - } else if (pFormat->container == drwav_container_w64) { - chunkSizeFMT = 40; - runningPos += drwav__write(pWav, drwavGUID_W64_FMT, 16); - runningPos += drwav__write_u64ne_to_le(pWav, chunkSizeFMT); - } - - runningPos += drwav__write_u16ne_to_le(pWav, pWav->fmt.formatTag); - runningPos += drwav__write_u16ne_to_le(pWav, pWav->fmt.channels); - runningPos += drwav__write_u32ne_to_le(pWav, pWav->fmt.sampleRate); - runningPos += drwav__write_u32ne_to_le(pWav, pWav->fmt.avgBytesPerSec); - runningPos += drwav__write_u16ne_to_le(pWav, pWav->fmt.blockAlign); - runningPos += drwav__write_u16ne_to_le(pWav, pWav->fmt.bitsPerSample); - - /* TODO: is a 'fact' chunk required for DR_WAVE_FORMAT_IEEE_FLOAT? */ - - if (!pWav->isSequentialWrite && pWav->pMetadata != NULL && pWav->metadataCount > 0 && (pFormat->container == drwav_container_riff || pFormat->container == drwav_container_rf64)) { - runningPos += drwav__write_or_count_metadata(pWav, pWav->pMetadata, pWav->metadataCount); - } - - pWav->dataChunkDataPos = runningPos; - - /* "data" chunk. */ - if (pFormat->container == drwav_container_riff) { - drwav_uint32 chunkSizeDATA = (drwav_uint32)initialDataChunkSize; - runningPos += drwav__write(pWav, "data", 4); - runningPos += drwav__write_u32ne_to_le(pWav, chunkSizeDATA); - } else if (pFormat->container == drwav_container_w64) { - drwav_uint64 chunkSizeDATA = 24 + initialDataChunkSize; /* +24 because W64 includes the size of the GUID and size fields. */ - runningPos += drwav__write(pWav, drwavGUID_W64_DATA, 16); - runningPos += drwav__write_u64ne_to_le(pWav, chunkSizeDATA); - } else if (pFormat->container == drwav_container_rf64) { - runningPos += drwav__write(pWav, "data", 4); - runningPos += drwav__write_u32ne_to_le(pWav, 0xFFFFFFFF); /* Always set to 0xFFFFFFFF for RF64. The true size of the data chunk is specified in the ds64 chunk. */ - } - - /* Set some properties for the client's convenience. */ - pWav->container = pFormat->container; - pWav->channels = (drwav_uint16)pFormat->channels; - pWav->sampleRate = pFormat->sampleRate; - pWav->bitsPerSample = (drwav_uint16)pFormat->bitsPerSample; - pWav->translatedFormatTag = (drwav_uint16)pFormat->format; - pWav->dataChunkDataPos = runningPos; - - return DRWAV_TRUE; -} - - -DRWAV_API drwav_bool32 drwav_init_write(drwav* pWav, const drwav_data_format* pFormat, drwav_write_proc onWrite, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (!drwav_preinit_write(pWav, pFormat, DRWAV_FALSE, onWrite, onSeek, pUserData, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - return drwav_init_write__internal(pWav, pFormat, 0); /* DRWAV_FALSE = Not Sequential */ -} - -DRWAV_API drwav_bool32 drwav_init_write_sequential(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_write_proc onWrite, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (!drwav_preinit_write(pWav, pFormat, DRWAV_TRUE, onWrite, NULL, pUserData, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - return drwav_init_write__internal(pWav, pFormat, totalSampleCount); /* DRWAV_TRUE = Sequential */ -} - -DRWAV_API drwav_bool32 drwav_init_write_sequential_pcm_frames(drwav* pWav, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, drwav_write_proc onWrite, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pFormat == NULL) { - return DRWAV_FALSE; - } - - return drwav_init_write_sequential(pWav, pFormat, totalPCMFrameCount*pFormat->channels, onWrite, pUserData, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_write_with_metadata(drwav* pWav, const drwav_data_format* pFormat, drwav_write_proc onWrite, drwav_seek_proc onSeek, void* pUserData, const drwav_allocation_callbacks* pAllocationCallbacks, drwav_metadata* pMetadata, drwav_uint32 metadataCount) -{ - if (!drwav_preinit_write(pWav, pFormat, DRWAV_FALSE, onWrite, onSeek, pUserData, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - pWav->pMetadata = pMetadata; - pWav->metadataCount = metadataCount; - - return drwav_init_write__internal(pWav, pFormat, 0); -} - - -DRWAV_API drwav_uint64 drwav_target_write_size_bytes(const drwav_data_format* pFormat, drwav_uint64 totalFrameCount, drwav_metadata* pMetadata, drwav_uint32 metadataCount) -{ - /* Casting totalFrameCount to drwav_int64 for VC6 compatibility. No issues in practice because nobody is going to exhaust the whole 63 bits. */ - drwav_uint64 targetDataSizeBytes = (drwav_uint64)((drwav_int64)totalFrameCount * pFormat->channels * pFormat->bitsPerSample/8.0); - drwav_uint64 riffChunkSizeBytes; - drwav_uint64 fileSizeBytes = 0; - - if (pFormat->container == drwav_container_riff) { - riffChunkSizeBytes = drwav__riff_chunk_size_riff(targetDataSizeBytes, pMetadata, metadataCount); - fileSizeBytes = (8 + riffChunkSizeBytes); /* +8 because WAV doesn't include the size of the ChunkID and ChunkSize fields. */ - } else if (pFormat->container == drwav_container_w64) { - riffChunkSizeBytes = drwav__riff_chunk_size_w64(targetDataSizeBytes); - fileSizeBytes = riffChunkSizeBytes; - } else if (pFormat->container == drwav_container_rf64) { - riffChunkSizeBytes = drwav__riff_chunk_size_rf64(targetDataSizeBytes, pMetadata, metadataCount); - fileSizeBytes = (8 + riffChunkSizeBytes); /* +8 because WAV doesn't include the size of the ChunkID and ChunkSize fields. */ - } - - return fileSizeBytes; -} - - -#ifndef DR_WAV_NO_STDIO - -/* Errno */ -/* drwav_result_from_errno() is only used for fopen() and wfopen() so putting it inside DR_WAV_NO_STDIO for now. If something else needs this later we can move it out. */ -#include <errno.h> -DRWAV_PRIVATE drwav_result drwav_result_from_errno(int e) -{ - switch (e) - { - case 0: return DRWAV_SUCCESS; - #ifdef EPERM - case EPERM: return DRWAV_INVALID_OPERATION; - #endif - #ifdef ENOENT - case ENOENT: return DRWAV_DOES_NOT_EXIST; - #endif - #ifdef ESRCH - case ESRCH: return DRWAV_DOES_NOT_EXIST; - #endif - #ifdef EINTR - case EINTR: return DRWAV_INTERRUPT; - #endif - #ifdef EIO - case EIO: return DRWAV_IO_ERROR; - #endif - #ifdef ENXIO - case ENXIO: return DRWAV_DOES_NOT_EXIST; - #endif - #ifdef E2BIG - case E2BIG: return DRWAV_INVALID_ARGS; - #endif - #ifdef ENOEXEC - case ENOEXEC: return DRWAV_INVALID_FILE; - #endif - #ifdef EBADF - case EBADF: return DRWAV_INVALID_FILE; - #endif - #ifdef ECHILD - case ECHILD: return DRWAV_ERROR; - #endif - #ifdef EAGAIN - case EAGAIN: return DRWAV_UNAVAILABLE; - #endif - #ifdef ENOMEM - case ENOMEM: return DRWAV_OUT_OF_MEMORY; - #endif - #ifdef EACCES - case EACCES: return DRWAV_ACCESS_DENIED; - #endif - #ifdef EFAULT - case EFAULT: return DRWAV_BAD_ADDRESS; - #endif - #ifdef ENOTBLK - case ENOTBLK: return DRWAV_ERROR; - #endif - #ifdef EBUSY - case EBUSY: return DRWAV_BUSY; - #endif - #ifdef EEXIST - case EEXIST: return DRWAV_ALREADY_EXISTS; - #endif - #ifdef EXDEV - case EXDEV: return DRWAV_ERROR; - #endif - #ifdef ENODEV - case ENODEV: return DRWAV_DOES_NOT_EXIST; - #endif - #ifdef ENOTDIR - case ENOTDIR: return DRWAV_NOT_DIRECTORY; - #endif - #ifdef EISDIR - case EISDIR: return DRWAV_IS_DIRECTORY; - #endif - #ifdef EINVAL - case EINVAL: return DRWAV_INVALID_ARGS; - #endif - #ifdef ENFILE - case ENFILE: return DRWAV_TOO_MANY_OPEN_FILES; - #endif - #ifdef EMFILE - case EMFILE: return DRWAV_TOO_MANY_OPEN_FILES; - #endif - #ifdef ENOTTY - case ENOTTY: return DRWAV_INVALID_OPERATION; - #endif - #ifdef ETXTBSY - case ETXTBSY: return DRWAV_BUSY; - #endif - #ifdef EFBIG - case EFBIG: return DRWAV_TOO_BIG; - #endif - #ifdef ENOSPC - case ENOSPC: return DRWAV_NO_SPACE; - #endif - #ifdef ESPIPE - case ESPIPE: return DRWAV_BAD_SEEK; - #endif - #ifdef EROFS - case EROFS: return DRWAV_ACCESS_DENIED; - #endif - #ifdef EMLINK - case EMLINK: return DRWAV_TOO_MANY_LINKS; - #endif - #ifdef EPIPE - case EPIPE: return DRWAV_BAD_PIPE; - #endif - #ifdef EDOM - case EDOM: return DRWAV_OUT_OF_RANGE; - #endif - #ifdef ERANGE - case ERANGE: return DRWAV_OUT_OF_RANGE; - #endif - #ifdef EDEADLK - case EDEADLK: return DRWAV_DEADLOCK; - #endif - #ifdef ENAMETOOLONG - case ENAMETOOLONG: return DRWAV_PATH_TOO_LONG; - #endif - #ifdef ENOLCK - case ENOLCK: return DRWAV_ERROR; - #endif - #ifdef ENOSYS - case ENOSYS: return DRWAV_NOT_IMPLEMENTED; - #endif - #ifdef ENOTEMPTY - case ENOTEMPTY: return DRWAV_DIRECTORY_NOT_EMPTY; - #endif - #ifdef ELOOP - case ELOOP: return DRWAV_TOO_MANY_LINKS; - #endif - #ifdef ENOMSG - case ENOMSG: return DRWAV_NO_MESSAGE; - #endif - #ifdef EIDRM - case EIDRM: return DRWAV_ERROR; - #endif - #ifdef ECHRNG - case ECHRNG: return DRWAV_ERROR; - #endif - #ifdef EL2NSYNC - case EL2NSYNC: return DRWAV_ERROR; - #endif - #ifdef EL3HLT - case EL3HLT: return DRWAV_ERROR; - #endif - #ifdef EL3RST - case EL3RST: return DRWAV_ERROR; - #endif - #ifdef ELNRNG - case ELNRNG: return DRWAV_OUT_OF_RANGE; - #endif - #ifdef EUNATCH - case EUNATCH: return DRWAV_ERROR; - #endif - #ifdef ENOCSI - case ENOCSI: return DRWAV_ERROR; - #endif - #ifdef EL2HLT - case EL2HLT: return DRWAV_ERROR; - #endif - #ifdef EBADE - case EBADE: return DRWAV_ERROR; - #endif - #ifdef EBADR - case EBADR: return DRWAV_ERROR; - #endif - #ifdef EXFULL - case EXFULL: return DRWAV_ERROR; - #endif - #ifdef ENOANO - case ENOANO: return DRWAV_ERROR; - #endif - #ifdef EBADRQC - case EBADRQC: return DRWAV_ERROR; - #endif - #ifdef EBADSLT - case EBADSLT: return DRWAV_ERROR; - #endif - #ifdef EBFONT - case EBFONT: return DRWAV_INVALID_FILE; - #endif - #ifdef ENOSTR - case ENOSTR: return DRWAV_ERROR; - #endif - #ifdef ENODATA - case ENODATA: return DRWAV_NO_DATA_AVAILABLE; - #endif - #ifdef ETIME - case ETIME: return DRWAV_TIMEOUT; - #endif - #ifdef ENOSR - case ENOSR: return DRWAV_NO_DATA_AVAILABLE; - #endif - #ifdef ENONET - case ENONET: return DRWAV_NO_NETWORK; - #endif - #ifdef ENOPKG - case ENOPKG: return DRWAV_ERROR; - #endif - #ifdef EREMOTE - case EREMOTE: return DRWAV_ERROR; - #endif - #ifdef ENOLINK - case ENOLINK: return DRWAV_ERROR; - #endif - #ifdef EADV - case EADV: return DRWAV_ERROR; - #endif - #ifdef ESRMNT - case ESRMNT: return DRWAV_ERROR; - #endif - #ifdef ECOMM - case ECOMM: return DRWAV_ERROR; - #endif - #ifdef EPROTO - case EPROTO: return DRWAV_ERROR; - #endif - #ifdef EMULTIHOP - case EMULTIHOP: return DRWAV_ERROR; - #endif - #ifdef EDOTDOT - case EDOTDOT: return DRWAV_ERROR; - #endif - #ifdef EBADMSG - case EBADMSG: return DRWAV_BAD_MESSAGE; - #endif - #ifdef EOVERFLOW - case EOVERFLOW: return DRWAV_TOO_BIG; - #endif - #ifdef ENOTUNIQ - case ENOTUNIQ: return DRWAV_NOT_UNIQUE; - #endif - #ifdef EBADFD - case EBADFD: return DRWAV_ERROR; - #endif - #ifdef EREMCHG - case EREMCHG: return DRWAV_ERROR; - #endif - #ifdef ELIBACC - case ELIBACC: return DRWAV_ACCESS_DENIED; - #endif - #ifdef ELIBBAD - case ELIBBAD: return DRWAV_INVALID_FILE; - #endif - #ifdef ELIBSCN - case ELIBSCN: return DRWAV_INVALID_FILE; - #endif - #ifdef ELIBMAX - case ELIBMAX: return DRWAV_ERROR; - #endif - #ifdef ELIBEXEC - case ELIBEXEC: return DRWAV_ERROR; - #endif - #ifdef EILSEQ - case EILSEQ: return DRWAV_INVALID_DATA; - #endif - #ifdef ERESTART - case ERESTART: return DRWAV_ERROR; - #endif - #ifdef ESTRPIPE - case ESTRPIPE: return DRWAV_ERROR; - #endif - #ifdef EUSERS - case EUSERS: return DRWAV_ERROR; - #endif - #ifdef ENOTSOCK - case ENOTSOCK: return DRWAV_NOT_SOCKET; - #endif - #ifdef EDESTADDRREQ - case EDESTADDRREQ: return DRWAV_NO_ADDRESS; - #endif - #ifdef EMSGSIZE - case EMSGSIZE: return DRWAV_TOO_BIG; - #endif - #ifdef EPROTOTYPE - case EPROTOTYPE: return DRWAV_BAD_PROTOCOL; - #endif - #ifdef ENOPROTOOPT - case ENOPROTOOPT: return DRWAV_PROTOCOL_UNAVAILABLE; - #endif - #ifdef EPROTONOSUPPORT - case EPROTONOSUPPORT: return DRWAV_PROTOCOL_NOT_SUPPORTED; - #endif - #ifdef ESOCKTNOSUPPORT - case ESOCKTNOSUPPORT: return DRWAV_SOCKET_NOT_SUPPORTED; - #endif - #ifdef EOPNOTSUPP - case EOPNOTSUPP: return DRWAV_INVALID_OPERATION; - #endif - #ifdef EPFNOSUPPORT - case EPFNOSUPPORT: return DRWAV_PROTOCOL_FAMILY_NOT_SUPPORTED; - #endif - #ifdef EAFNOSUPPORT - case EAFNOSUPPORT: return DRWAV_ADDRESS_FAMILY_NOT_SUPPORTED; - #endif - #ifdef EADDRINUSE - case EADDRINUSE: return DRWAV_ALREADY_IN_USE; - #endif - #ifdef EADDRNOTAVAIL - case EADDRNOTAVAIL: return DRWAV_ERROR; - #endif - #ifdef ENETDOWN - case ENETDOWN: return DRWAV_NO_NETWORK; - #endif - #ifdef ENETUNREACH - case ENETUNREACH: return DRWAV_NO_NETWORK; - #endif - #ifdef ENETRESET - case ENETRESET: return DRWAV_NO_NETWORK; - #endif - #ifdef ECONNABORTED - case ECONNABORTED: return DRWAV_NO_NETWORK; - #endif - #ifdef ECONNRESET - case ECONNRESET: return DRWAV_CONNECTION_RESET; - #endif - #ifdef ENOBUFS - case ENOBUFS: return DRWAV_NO_SPACE; - #endif - #ifdef EISCONN - case EISCONN: return DRWAV_ALREADY_CONNECTED; - #endif - #ifdef ENOTCONN - case ENOTCONN: return DRWAV_NOT_CONNECTED; - #endif - #ifdef ESHUTDOWN - case ESHUTDOWN: return DRWAV_ERROR; - #endif - #ifdef ETOOMANYREFS - case ETOOMANYREFS: return DRWAV_ERROR; - #endif - #ifdef ETIMEDOUT - case ETIMEDOUT: return DRWAV_TIMEOUT; - #endif - #ifdef ECONNREFUSED - case ECONNREFUSED: return DRWAV_CONNECTION_REFUSED; - #endif - #ifdef EHOSTDOWN - case EHOSTDOWN: return DRWAV_NO_HOST; - #endif - #ifdef EHOSTUNREACH - case EHOSTUNREACH: return DRWAV_NO_HOST; - #endif - #ifdef EALREADY - case EALREADY: return DRWAV_IN_PROGRESS; - #endif - #ifdef EINPROGRESS - case EINPROGRESS: return DRWAV_IN_PROGRESS; - #endif - #ifdef ESTALE - case ESTALE: return DRWAV_INVALID_FILE; - #endif - #ifdef EUCLEAN - case EUCLEAN: return DRWAV_ERROR; - #endif - #ifdef ENOTNAM - case ENOTNAM: return DRWAV_ERROR; - #endif - #ifdef ENAVAIL - case ENAVAIL: return DRWAV_ERROR; - #endif - #ifdef EISNAM - case EISNAM: return DRWAV_ERROR; - #endif - #ifdef EREMOTEIO - case EREMOTEIO: return DRWAV_IO_ERROR; - #endif - #ifdef EDQUOT - case EDQUOT: return DRWAV_NO_SPACE; - #endif - #ifdef ENOMEDIUM - case ENOMEDIUM: return DRWAV_DOES_NOT_EXIST; - #endif - #ifdef EMEDIUMTYPE - case EMEDIUMTYPE: return DRWAV_ERROR; - #endif - #ifdef ECANCELED - case ECANCELED: return DRWAV_CANCELLED; - #endif - #ifdef ENOKEY - case ENOKEY: return DRWAV_ERROR; - #endif - #ifdef EKEYEXPIRED - case EKEYEXPIRED: return DRWAV_ERROR; - #endif - #ifdef EKEYREVOKED - case EKEYREVOKED: return DRWAV_ERROR; - #endif - #ifdef EKEYREJECTED - case EKEYREJECTED: return DRWAV_ERROR; - #endif - #ifdef EOWNERDEAD - case EOWNERDEAD: return DRWAV_ERROR; - #endif - #ifdef ENOTRECOVERABLE - case ENOTRECOVERABLE: return DRWAV_ERROR; - #endif - #ifdef ERFKILL - case ERFKILL: return DRWAV_ERROR; - #endif - #ifdef EHWPOISON - case EHWPOISON: return DRWAV_ERROR; - #endif - default: return DRWAV_ERROR; - } -} -/* End Errno */ - -/* fopen */ -DRWAV_PRIVATE drwav_result drwav_fopen(FILE** ppFile, const char* pFilePath, const char* pOpenMode) -{ -#if defined(_MSC_VER) && _MSC_VER >= 1400 - errno_t err; -#endif - - if (ppFile != NULL) { - *ppFile = NULL; /* Safety. */ - } - - if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) { - return DRWAV_INVALID_ARGS; - } - -#if defined(_MSC_VER) && _MSC_VER >= 1400 - err = fopen_s(ppFile, pFilePath, pOpenMode); - if (err != 0) { - return drwav_result_from_errno(err); - } -#else -#if defined(_WIN32) || defined(__APPLE__) - *ppFile = fopen(pFilePath, pOpenMode); -#else - #if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64 && defined(_LARGEFILE64_SOURCE) - *ppFile = fopen64(pFilePath, pOpenMode); - #else - *ppFile = fopen(pFilePath, pOpenMode); - #endif -#endif - if (*ppFile == NULL) { - drwav_result result = drwav_result_from_errno(errno); - if (result == DRWAV_SUCCESS) { - result = DRWAV_ERROR; /* Just a safety check to make sure we never ever return success when pFile == NULL. */ - } - - return result; - } -#endif - - return DRWAV_SUCCESS; -} - -/* -_wfopen() isn't always available in all compilation environments. - - * Windows only. - * MSVC seems to support it universally as far back as VC6 from what I can tell (haven't checked further back). - * MinGW-64 (both 32- and 64-bit) seems to support it. - * MinGW wraps it in !defined(__STRICT_ANSI__). - * OpenWatcom wraps it in !defined(_NO_EXT_KEYS). - -This can be reviewed as compatibility issues arise. The preference is to use _wfopen_s() and _wfopen() as opposed to the wcsrtombs() -fallback, so if you notice your compiler not detecting this properly I'm happy to look at adding support. -*/ -#if defined(_WIN32) - #if defined(_MSC_VER) || defined(__MINGW64__) || (!defined(__STRICT_ANSI__) && !defined(_NO_EXT_KEYS)) - #define DRWAV_HAS_WFOPEN - #endif -#endif - -#ifndef DR_WAV_NO_WCHAR -DRWAV_PRIVATE drwav_result drwav_wfopen(FILE** ppFile, const wchar_t* pFilePath, const wchar_t* pOpenMode, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (ppFile != NULL) { - *ppFile = NULL; /* Safety. */ - } - - if (pFilePath == NULL || pOpenMode == NULL || ppFile == NULL) { - return DRWAV_INVALID_ARGS; - } - -#if defined(DRWAV_HAS_WFOPEN) - { - /* Use _wfopen() on Windows. */ - #if defined(_MSC_VER) && _MSC_VER >= 1400 - errno_t err = _wfopen_s(ppFile, pFilePath, pOpenMode); - if (err != 0) { - return drwav_result_from_errno(err); - } - #else - *ppFile = _wfopen(pFilePath, pOpenMode); - if (*ppFile == NULL) { - return drwav_result_from_errno(errno); - } - #endif - (void)pAllocationCallbacks; - } -#else - /* - Use fopen() on anything other than Windows. Requires a conversion. This is annoying because - fopen() is locale specific. The only real way I can think of to do this is with wcsrtombs(). Note - that wcstombs() is apparently not thread-safe because it uses a static global mbstate_t object for - maintaining state. I've checked this with -std=c89 and it works, but if somebody get's a compiler - error I'll look into improving compatibility. - */ - - /* - Some compilers don't support wchar_t or wcsrtombs() which we're using below. In this case we just - need to abort with an error. If you encounter a compiler lacking such support, add it to this list - and submit a bug report and it'll be added to the library upstream. - */ - #if defined(__DJGPP__) - { - /* Nothing to do here. This will fall through to the error check below. */ - } - #else - { - mbstate_t mbs; - size_t lenMB; - const wchar_t* pFilePathTemp = pFilePath; - char* pFilePathMB = NULL; - char pOpenModeMB[32] = {0}; - - /* Get the length first. */ - DRWAV_ZERO_OBJECT(&mbs); - lenMB = wcsrtombs(NULL, &pFilePathTemp, 0, &mbs); - if (lenMB == (size_t)-1) { - return drwav_result_from_errno(errno); - } - - pFilePathMB = (char*)drwav__malloc_from_callbacks(lenMB + 1, pAllocationCallbacks); - if (pFilePathMB == NULL) { - return DRWAV_OUT_OF_MEMORY; - } - - pFilePathTemp = pFilePath; - DRWAV_ZERO_OBJECT(&mbs); - wcsrtombs(pFilePathMB, &pFilePathTemp, lenMB + 1, &mbs); - - /* The open mode should always consist of ASCII characters so we should be able to do a trivial conversion. */ - { - size_t i = 0; - for (;;) { - if (pOpenMode[i] == 0) { - pOpenModeMB[i] = '\0'; - break; - } - - pOpenModeMB[i] = (char)pOpenMode[i]; - i += 1; - } - } - - *ppFile = fopen(pFilePathMB, pOpenModeMB); - - drwav__free_from_callbacks(pFilePathMB, pAllocationCallbacks); - } - #endif - - if (*ppFile == NULL) { - return DRWAV_ERROR; - } -#endif - - return DRWAV_SUCCESS; -} -#endif -/* End fopen */ - - -DRWAV_PRIVATE size_t drwav__on_read_stdio(void* pUserData, void* pBufferOut, size_t bytesToRead) -{ - return fread(pBufferOut, 1, bytesToRead, (FILE*)pUserData); -} - -DRWAV_PRIVATE size_t drwav__on_write_stdio(void* pUserData, const void* pData, size_t bytesToWrite) -{ - return fwrite(pData, 1, bytesToWrite, (FILE*)pUserData); -} - -DRWAV_PRIVATE drwav_bool32 drwav__on_seek_stdio(void* pUserData, int offset, drwav_seek_origin origin) -{ - return fseek((FILE*)pUserData, offset, (origin == drwav_seek_origin_current) ? SEEK_CUR : SEEK_SET) == 0; -} - -DRWAV_API drwav_bool32 drwav_init_file(drwav* pWav, const char* filename, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_ex(pWav, filename, NULL, NULL, 0, pAllocationCallbacks); -} - - -DRWAV_PRIVATE drwav_bool32 drwav_init_file__internal_FILE(drwav* pWav, FILE* pFile, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav_bool32 result; - - result = drwav_preinit(pWav, drwav__on_read_stdio, drwav__on_seek_stdio, (void*)pFile, pAllocationCallbacks); - if (result != DRWAV_TRUE) { - fclose(pFile); - return result; - } - - result = drwav_init__internal(pWav, onChunk, pChunkUserData, flags); - if (result != DRWAV_TRUE) { - fclose(pFile); - return result; - } - - return DRWAV_TRUE; -} - -DRWAV_API drwav_bool32 drwav_init_file_ex(drwav* pWav, const char* filename, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_fopen(&pFile, filename, "rb") != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file__internal_FILE(pWav, pFile, onChunk, pChunkUserData, flags, pAllocationCallbacks); -} - -#ifndef DR_WAV_NO_WCHAR -DRWAV_API drwav_bool32 drwav_init_file_w(drwav* pWav, const wchar_t* filename, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_ex_w(pWav, filename, NULL, NULL, 0, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_file_ex_w(drwav* pWav, const wchar_t* filename, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_wfopen(&pFile, filename, L"rb", pAllocationCallbacks) != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file__internal_FILE(pWav, pFile, onChunk, pChunkUserData, flags, pAllocationCallbacks); -} -#endif - -DRWAV_API drwav_bool32 drwav_init_file_with_metadata(drwav* pWav, const char* filename, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_fopen(&pFile, filename, "rb") != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file__internal_FILE(pWav, pFile, NULL, NULL, flags | DRWAV_WITH_METADATA, pAllocationCallbacks); -} - -#ifndef DR_WAV_NO_WCHAR -DRWAV_API drwav_bool32 drwav_init_file_with_metadata_w(drwav* pWav, const wchar_t* filename, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_wfopen(&pFile, filename, L"rb", pAllocationCallbacks) != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file__internal_FILE(pWav, pFile, NULL, NULL, flags | DRWAV_WITH_METADATA, pAllocationCallbacks); -} -#endif - - -DRWAV_PRIVATE drwav_bool32 drwav_init_file_write__internal_FILE(drwav* pWav, FILE* pFile, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_bool32 isSequential, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav_bool32 result; - - result = drwav_preinit_write(pWav, pFormat, isSequential, drwav__on_write_stdio, drwav__on_seek_stdio, (void*)pFile, pAllocationCallbacks); - if (result != DRWAV_TRUE) { - fclose(pFile); - return result; - } - - result = drwav_init_write__internal(pWav, pFormat, totalSampleCount); - if (result != DRWAV_TRUE) { - fclose(pFile); - return result; - } - - return DRWAV_TRUE; -} - -DRWAV_PRIVATE drwav_bool32 drwav_init_file_write__internal(drwav* pWav, const char* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_bool32 isSequential, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_fopen(&pFile, filename, "wb") != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file_write__internal_FILE(pWav, pFile, pFormat, totalSampleCount, isSequential, pAllocationCallbacks); -} - -#ifndef DR_WAV_NO_WCHAR -DRWAV_PRIVATE drwav_bool32 drwav_init_file_write_w__internal(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_bool32 isSequential, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - FILE* pFile; - if (drwav_wfopen(&pFile, filename, L"wb", pAllocationCallbacks) != DRWAV_SUCCESS) { - return DRWAV_FALSE; - } - - /* This takes ownership of the FILE* object. */ - return drwav_init_file_write__internal_FILE(pWav, pFile, pFormat, totalSampleCount, isSequential, pAllocationCallbacks); -} -#endif - -DRWAV_API drwav_bool32 drwav_init_file_write(drwav* pWav, const char* filename, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_write__internal(pWav, filename, pFormat, 0, DRWAV_FALSE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_file_write_sequential(drwav* pWav, const char* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_write__internal(pWav, filename, pFormat, totalSampleCount, DRWAV_TRUE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_pcm_frames(drwav* pWav, const char* filename, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pFormat == NULL) { - return DRWAV_FALSE; - } - - return drwav_init_file_write_sequential(pWav, filename, pFormat, totalPCMFrameCount*pFormat->channels, pAllocationCallbacks); -} - -#ifndef DR_WAV_NO_WCHAR -DRWAV_API drwav_bool32 drwav_init_file_write_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_write_w__internal(pWav, filename, pFormat, 0, DRWAV_FALSE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_file_write_w__internal(pWav, filename, pFormat, totalSampleCount, DRWAV_TRUE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_file_write_sequential_pcm_frames_w(drwav* pWav, const wchar_t* filename, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pFormat == NULL) { - return DRWAV_FALSE; - } - - return drwav_init_file_write_sequential_w(pWav, filename, pFormat, totalPCMFrameCount*pFormat->channels, pAllocationCallbacks); -} -#endif -#endif /* DR_WAV_NO_STDIO */ - - -DRWAV_PRIVATE size_t drwav__on_read_memory(void* pUserData, void* pBufferOut, size_t bytesToRead) -{ - drwav* pWav = (drwav*)pUserData; - size_t bytesRemaining; - - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->memoryStream.dataSize >= pWav->memoryStream.currentReadPos); - - bytesRemaining = pWav->memoryStream.dataSize - pWav->memoryStream.currentReadPos; - if (bytesToRead > bytesRemaining) { - bytesToRead = bytesRemaining; - } - - if (bytesToRead > 0) { - DRWAV_COPY_MEMORY(pBufferOut, pWav->memoryStream.data + pWav->memoryStream.currentReadPos, bytesToRead); - pWav->memoryStream.currentReadPos += bytesToRead; - } - - return bytesToRead; -} - -DRWAV_PRIVATE drwav_bool32 drwav__on_seek_memory(void* pUserData, int offset, drwav_seek_origin origin) -{ - drwav* pWav = (drwav*)pUserData; - DRWAV_ASSERT(pWav != NULL); - - if (origin == drwav_seek_origin_current) { - if (offset > 0) { - if (pWav->memoryStream.currentReadPos + offset > pWav->memoryStream.dataSize) { - return DRWAV_FALSE; /* Trying to seek too far forward. */ - } - } else { - if (pWav->memoryStream.currentReadPos < (size_t)-offset) { - return DRWAV_FALSE; /* Trying to seek too far backwards. */ - } - } - - /* This will never underflow thanks to the clamps above. */ - pWav->memoryStream.currentReadPos += offset; - } else { - if ((drwav_uint32)offset <= pWav->memoryStream.dataSize) { - pWav->memoryStream.currentReadPos = offset; - } else { - return DRWAV_FALSE; /* Trying to seek too far forward. */ - } - } - - return DRWAV_TRUE; -} - -DRWAV_PRIVATE size_t drwav__on_write_memory(void* pUserData, const void* pDataIn, size_t bytesToWrite) -{ - drwav* pWav = (drwav*)pUserData; - size_t bytesRemaining; - - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(pWav->memoryStreamWrite.dataCapacity >= pWav->memoryStreamWrite.currentWritePos); - - bytesRemaining = pWav->memoryStreamWrite.dataCapacity - pWav->memoryStreamWrite.currentWritePos; - if (bytesRemaining < bytesToWrite) { - /* Need to reallocate. */ - void* pNewData; - size_t newDataCapacity = (pWav->memoryStreamWrite.dataCapacity == 0) ? 256 : pWav->memoryStreamWrite.dataCapacity * 2; - - /* If doubling wasn't enough, just make it the minimum required size to write the data. */ - if ((newDataCapacity - pWav->memoryStreamWrite.currentWritePos) < bytesToWrite) { - newDataCapacity = pWav->memoryStreamWrite.currentWritePos + bytesToWrite; - } - - pNewData = drwav__realloc_from_callbacks(*pWav->memoryStreamWrite.ppData, newDataCapacity, pWav->memoryStreamWrite.dataCapacity, &pWav->allocationCallbacks); - if (pNewData == NULL) { - return 0; - } - - *pWav->memoryStreamWrite.ppData = pNewData; - pWav->memoryStreamWrite.dataCapacity = newDataCapacity; - } - - DRWAV_COPY_MEMORY(((drwav_uint8*)(*pWav->memoryStreamWrite.ppData)) + pWav->memoryStreamWrite.currentWritePos, pDataIn, bytesToWrite); - - pWav->memoryStreamWrite.currentWritePos += bytesToWrite; - if (pWav->memoryStreamWrite.dataSize < pWav->memoryStreamWrite.currentWritePos) { - pWav->memoryStreamWrite.dataSize = pWav->memoryStreamWrite.currentWritePos; - } - - *pWav->memoryStreamWrite.pDataSize = pWav->memoryStreamWrite.dataSize; - - return bytesToWrite; -} - -DRWAV_PRIVATE drwav_bool32 drwav__on_seek_memory_write(void* pUserData, int offset, drwav_seek_origin origin) -{ - drwav* pWav = (drwav*)pUserData; - DRWAV_ASSERT(pWav != NULL); - - if (origin == drwav_seek_origin_current) { - if (offset > 0) { - if (pWav->memoryStreamWrite.currentWritePos + offset > pWav->memoryStreamWrite.dataSize) { - offset = (int)(pWav->memoryStreamWrite.dataSize - pWav->memoryStreamWrite.currentWritePos); /* Trying to seek too far forward. */ - } - } else { - if (pWav->memoryStreamWrite.currentWritePos < (size_t)-offset) { - offset = -(int)pWav->memoryStreamWrite.currentWritePos; /* Trying to seek too far backwards. */ - } - } - - /* This will never underflow thanks to the clamps above. */ - pWav->memoryStreamWrite.currentWritePos += offset; - } else { - if ((drwav_uint32)offset <= pWav->memoryStreamWrite.dataSize) { - pWav->memoryStreamWrite.currentWritePos = offset; - } else { - pWav->memoryStreamWrite.currentWritePos = pWav->memoryStreamWrite.dataSize; /* Trying to seek too far forward. */ - } - } - - return DRWAV_TRUE; -} - -DRWAV_API drwav_bool32 drwav_init_memory(drwav* pWav, const void* data, size_t dataSize, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_memory_ex(pWav, data, dataSize, NULL, NULL, 0, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_memory_ex(drwav* pWav, const void* data, size_t dataSize, drwav_chunk_proc onChunk, void* pChunkUserData, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (data == NULL || dataSize == 0) { - return DRWAV_FALSE; - } - - if (!drwav_preinit(pWav, drwav__on_read_memory, drwav__on_seek_memory, pWav, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - pWav->memoryStream.data = (const drwav_uint8*)data; - pWav->memoryStream.dataSize = dataSize; - pWav->memoryStream.currentReadPos = 0; - - return drwav_init__internal(pWav, onChunk, pChunkUserData, flags); -} - -DRWAV_API drwav_bool32 drwav_init_memory_with_metadata(drwav* pWav, const void* data, size_t dataSize, drwav_uint32 flags, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (data == NULL || dataSize == 0) { - return DRWAV_FALSE; - } - - if (!drwav_preinit(pWav, drwav__on_read_memory, drwav__on_seek_memory, pWav, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - pWav->memoryStream.data = (const drwav_uint8*)data; - pWav->memoryStream.dataSize = dataSize; - pWav->memoryStream.currentReadPos = 0; - - return drwav_init__internal(pWav, NULL, NULL, flags | DRWAV_WITH_METADATA); -} - - -DRWAV_PRIVATE drwav_bool32 drwav_init_memory_write__internal(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, drwav_bool32 isSequential, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (ppData == NULL || pDataSize == NULL) { - return DRWAV_FALSE; - } - - *ppData = NULL; /* Important because we're using realloc()! */ - *pDataSize = 0; - - if (!drwav_preinit_write(pWav, pFormat, isSequential, drwav__on_write_memory, drwav__on_seek_memory_write, pWav, pAllocationCallbacks)) { - return DRWAV_FALSE; - } - - pWav->memoryStreamWrite.ppData = ppData; - pWav->memoryStreamWrite.pDataSize = pDataSize; - pWav->memoryStreamWrite.dataSize = 0; - pWav->memoryStreamWrite.dataCapacity = 0; - pWav->memoryStreamWrite.currentWritePos = 0; - - return drwav_init_write__internal(pWav, pFormat, totalSampleCount); -} - -DRWAV_API drwav_bool32 drwav_init_memory_write(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_memory_write__internal(pWav, ppData, pDataSize, pFormat, 0, DRWAV_FALSE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_memory_write_sequential(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, drwav_uint64 totalSampleCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - return drwav_init_memory_write__internal(pWav, ppData, pDataSize, pFormat, totalSampleCount, DRWAV_TRUE, pAllocationCallbacks); -} - -DRWAV_API drwav_bool32 drwav_init_memory_write_sequential_pcm_frames(drwav* pWav, void** ppData, size_t* pDataSize, const drwav_data_format* pFormat, drwav_uint64 totalPCMFrameCount, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pFormat == NULL) { - return DRWAV_FALSE; - } - - return drwav_init_memory_write_sequential(pWav, ppData, pDataSize, pFormat, totalPCMFrameCount*pFormat->channels, pAllocationCallbacks); -} - - - -DRWAV_API drwav_result drwav_uninit(drwav* pWav) -{ - drwav_result result = DRWAV_SUCCESS; - - if (pWav == NULL) { - return DRWAV_INVALID_ARGS; - } - - /* - If the drwav object was opened in write mode we'll need to finalize a few things: - - Make sure the "data" chunk is aligned to 16-bits for RIFF containers, or 64 bits for W64 containers. - - Set the size of the "data" chunk. - */ - if (pWav->onWrite != NULL) { - drwav_uint32 paddingSize = 0; - - /* Padding. Do not adjust pWav->dataChunkDataSize - this should not include the padding. */ - if (pWav->container == drwav_container_riff || pWav->container == drwav_container_rf64) { - paddingSize = drwav__chunk_padding_size_riff(pWav->dataChunkDataSize); - } else { - paddingSize = drwav__chunk_padding_size_w64(pWav->dataChunkDataSize); - } - - if (paddingSize > 0) { - drwav_uint64 paddingData = 0; - drwav__write(pWav, &paddingData, paddingSize); /* Byte order does not matter for this. */ - } - - /* - Chunk sizes. When using sequential mode, these will have been filled in at initialization time. We only need - to do this when using non-sequential mode. - */ - if (pWav->onSeek && !pWav->isSequentialWrite) { - if (pWav->container == drwav_container_riff) { - /* The "RIFF" chunk size. */ - if (pWav->onSeek(pWav->pUserData, 4, drwav_seek_origin_start)) { - drwav_uint32 riffChunkSize = drwav__riff_chunk_size_riff(pWav->dataChunkDataSize, pWav->pMetadata, pWav->metadataCount); - drwav__write_u32ne_to_le(pWav, riffChunkSize); - } - - /* The "data" chunk size. */ - if (pWav->onSeek(pWav->pUserData, (int)pWav->dataChunkDataPos - 4, drwav_seek_origin_start)) { - drwav_uint32 dataChunkSize = drwav__data_chunk_size_riff(pWav->dataChunkDataSize); - drwav__write_u32ne_to_le(pWav, dataChunkSize); - } - } else if (pWav->container == drwav_container_w64) { - /* The "RIFF" chunk size. */ - if (pWav->onSeek(pWav->pUserData, 16, drwav_seek_origin_start)) { - drwav_uint64 riffChunkSize = drwav__riff_chunk_size_w64(pWav->dataChunkDataSize); - drwav__write_u64ne_to_le(pWav, riffChunkSize); - } - - /* The "data" chunk size. */ - if (pWav->onSeek(pWav->pUserData, (int)pWav->dataChunkDataPos - 8, drwav_seek_origin_start)) { - drwav_uint64 dataChunkSize = drwav__data_chunk_size_w64(pWav->dataChunkDataSize); - drwav__write_u64ne_to_le(pWav, dataChunkSize); - } - } else if (pWav->container == drwav_container_rf64) { - /* We only need to update the ds64 chunk. The "RIFF" and "data" chunks always have their sizes set to 0xFFFFFFFF for RF64. */ - int ds64BodyPos = 12 + 8; - - /* The "RIFF" chunk size. */ - if (pWav->onSeek(pWav->pUserData, ds64BodyPos + 0, drwav_seek_origin_start)) { - drwav_uint64 riffChunkSize = drwav__riff_chunk_size_rf64(pWav->dataChunkDataSize, pWav->pMetadata, pWav->metadataCount); - drwav__write_u64ne_to_le(pWav, riffChunkSize); - } - - /* The "data" chunk size. */ - if (pWav->onSeek(pWav->pUserData, ds64BodyPos + 8, drwav_seek_origin_start)) { - drwav_uint64 dataChunkSize = drwav__data_chunk_size_rf64(pWav->dataChunkDataSize); - drwav__write_u64ne_to_le(pWav, dataChunkSize); - } - } - } - - /* Validation for sequential mode. */ - if (pWav->isSequentialWrite) { - if (pWav->dataChunkDataSize != pWav->dataChunkDataSizeTargetWrite) { - result = DRWAV_INVALID_FILE; - } - } - } else { - drwav_free(pWav->pMetadata, &pWav->allocationCallbacks); - } - -#ifndef DR_WAV_NO_STDIO - /* - If we opened the file with drwav_open_file() we will want to close the file handle. We can know whether or not drwav_open_file() - was used by looking at the onRead and onSeek callbacks. - */ - if (pWav->onRead == drwav__on_read_stdio || pWav->onWrite == drwav__on_write_stdio) { - fclose((FILE*)pWav->pUserData); - } -#endif - - return result; -} - - - -DRWAV_API size_t drwav_read_raw(drwav* pWav, size_t bytesToRead, void* pBufferOut) -{ - size_t bytesRead; - drwav_uint32 bytesPerFrame; - - if (pWav == NULL || bytesToRead == 0) { - return 0; /* Invalid args. */ - } - - if (bytesToRead > pWav->bytesRemaining) { - bytesToRead = (size_t)pWav->bytesRemaining; - } - - if (bytesToRead == 0) { - return 0; /* At end. */ - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; /* Could not determine the bytes per frame. */ - } - - if (pBufferOut != NULL) { - bytesRead = pWav->onRead(pWav->pUserData, pBufferOut, bytesToRead); - } else { - /* We need to seek. If we fail, we need to read-and-discard to make sure we get a good byte count. */ - bytesRead = 0; - while (bytesRead < bytesToRead) { - size_t bytesToSeek = (bytesToRead - bytesRead); - if (bytesToSeek > 0x7FFFFFFF) { - bytesToSeek = 0x7FFFFFFF; - } - - if (pWav->onSeek(pWav->pUserData, (int)bytesToSeek, drwav_seek_origin_current) == DRWAV_FALSE) { - break; - } - - bytesRead += bytesToSeek; - } - - /* When we get here we may need to read-and-discard some data. */ - while (bytesRead < bytesToRead) { - drwav_uint8 buffer[4096]; - size_t bytesSeeked; - size_t bytesToSeek = (bytesToRead - bytesRead); - if (bytesToSeek > sizeof(buffer)) { - bytesToSeek = sizeof(buffer); - } - - bytesSeeked = pWav->onRead(pWav->pUserData, buffer, bytesToSeek); - bytesRead += bytesSeeked; - - if (bytesSeeked < bytesToSeek) { - break; /* Reached the end. */ - } - } - } - - pWav->readCursorInPCMFrames += bytesRead / bytesPerFrame; - - pWav->bytesRemaining -= bytesRead; - return bytesRead; -} - - - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_le(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut) -{ - drwav_uint32 bytesPerFrame; - drwav_uint64 bytesToRead; /* Intentionally uint64 instead of size_t so we can do a check that we're not reading too much on 32-bit builds. */ - drwav_uint64 framesRemainingInFile; - - if (pWav == NULL || framesToRead == 0) { - return 0; - } - - /* Cannot use this function for compressed formats. */ - if (drwav__is_compressed_format_tag(pWav->translatedFormatTag)) { - return 0; - } - - framesRemainingInFile = pWav->totalPCMFrameCount - pWav->readCursorInPCMFrames; - if (framesToRead > framesRemainingInFile) { - framesToRead = framesRemainingInFile; - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - /* Don't try to read more samples than can potentially fit in the output buffer. */ - bytesToRead = framesToRead * bytesPerFrame; - if (bytesToRead > DRWAV_SIZE_MAX) { - bytesToRead = (DRWAV_SIZE_MAX / bytesPerFrame) * bytesPerFrame; /* Round the number of bytes to read to a clean frame boundary. */ - } - - /* - Doing an explicit check here just to make it clear that we don't want to be attempt to read anything if there's no bytes to read. There - *could* be a time where it evaluates to 0 due to overflowing. - */ - if (bytesToRead == 0) { - return 0; - } - - return drwav_read_raw(pWav, (size_t)bytesToRead, pBufferOut) / bytesPerFrame; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_be(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_le(pWav, framesToRead, pBufferOut); - - if (pBufferOut != NULL) { - drwav_uint32 bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; /* Could not get the bytes per frame which means bytes per sample cannot be determined and we don't know how to byte swap. */ - } - - drwav__bswap_samples(pBufferOut, framesRead*pWav->channels, bytesPerFrame/pWav->channels); - } - - return framesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames(drwav* pWav, drwav_uint64 framesToRead, void* pBufferOut) -{ - drwav_uint64 framesRead = 0; - - if (drwav_is_container_be(pWav->container)) { - /* - Special case for AIFF. AIFF is a big-endian encoded format, but it supports a format that is - PCM in little-endian encoding. In this case, we fall through this branch and treate it as - little-endian. - */ - if (pWav->container != drwav_container_aiff || pWav->aiff.isLE == DRWAV_FALSE) { - if (drwav__is_little_endian()) { - framesRead = drwav_read_pcm_frames_be(pWav, framesToRead, pBufferOut); - } else { - framesRead = drwav_read_pcm_frames_le(pWav, framesToRead, pBufferOut); - } - - goto post_process; - } - } - - /* Getting here means the data should be considered little-endian. */ - if (drwav__is_little_endian()) { - framesRead = drwav_read_pcm_frames_le(pWav, framesToRead, pBufferOut); - } else { - framesRead = drwav_read_pcm_frames_be(pWav, framesToRead, pBufferOut); - } - - /* - Here is where we check if we need to do a signed/unsigned conversion for AIFF. The reason we need to do this - is because dr_wav always assumes an 8-bit sample is unsigned, whereas AIFF can have signed 8-bit formats. - */ - post_process: - { - if (pWav->container == drwav_container_aiff && pWav->bitsPerSample == 8 && pWav->aiff.isUnsigned == DRWAV_FALSE) { - if (pBufferOut != NULL) { - drwav_uint64 iSample; - - for (iSample = 0; iSample < framesRead * pWav->channels; iSample += 1) { - ((drwav_uint8*)pBufferOut)[iSample] += 128; - } - } - } - } - - return framesRead; -} - - - -DRWAV_PRIVATE drwav_bool32 drwav_seek_to_first_pcm_frame(drwav* pWav) -{ - if (pWav->onWrite != NULL) { - return DRWAV_FALSE; /* No seeking in write mode. */ - } - - if (!pWav->onSeek(pWav->pUserData, (int)pWav->dataChunkDataPos, drwav_seek_origin_start)) { - return DRWAV_FALSE; - } - - if (drwav__is_compressed_format_tag(pWav->translatedFormatTag)) { - /* Cached data needs to be cleared for compressed formats. */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - DRWAV_ZERO_OBJECT(&pWav->msadpcm); - } else if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - DRWAV_ZERO_OBJECT(&pWav->ima); - } else { - DRWAV_ASSERT(DRWAV_FALSE); /* If this assertion is triggered it means I've implemented a new compressed format but forgot to add a branch for it here. */ - } - } - - pWav->readCursorInPCMFrames = 0; - pWav->bytesRemaining = pWav->dataChunkDataSize; - - return DRWAV_TRUE; -} - -DRWAV_API drwav_bool32 drwav_seek_to_pcm_frame(drwav* pWav, drwav_uint64 targetFrameIndex) -{ - /* Seeking should be compatible with wave files > 2GB. */ - - if (pWav == NULL || pWav->onSeek == NULL) { - return DRWAV_FALSE; - } - - /* No seeking in write mode. */ - if (pWav->onWrite != NULL) { - return DRWAV_FALSE; - } - - /* If there are no samples, just return DRWAV_TRUE without doing anything. */ - if (pWav->totalPCMFrameCount == 0) { - return DRWAV_TRUE; - } - - /* Make sure the sample is clamped. */ - if (targetFrameIndex > pWav->totalPCMFrameCount) { - targetFrameIndex = pWav->totalPCMFrameCount; - } - - /* - For compressed formats we just use a slow generic seek. If we are seeking forward we just seek forward. If we are going backwards we need - to seek back to the start. - */ - if (drwav__is_compressed_format_tag(pWav->translatedFormatTag)) { - /* TODO: This can be optimized. */ - - /* - If we're seeking forward it's simple - just keep reading samples until we hit the sample we're requesting. If we're seeking backwards, - we first need to seek back to the start and then just do the same thing as a forward seek. - */ - if (targetFrameIndex < pWav->readCursorInPCMFrames) { - if (!drwav_seek_to_first_pcm_frame(pWav)) { - return DRWAV_FALSE; - } - } - - if (targetFrameIndex > pWav->readCursorInPCMFrames) { - drwav_uint64 offsetInFrames = targetFrameIndex - pWav->readCursorInPCMFrames; - - drwav_int16 devnull[2048]; - while (offsetInFrames > 0) { - drwav_uint64 framesRead = 0; - drwav_uint64 framesToRead = offsetInFrames; - if (framesToRead > drwav_countof(devnull)/pWav->channels) { - framesToRead = drwav_countof(devnull)/pWav->channels; - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - framesRead = drwav_read_pcm_frames_s16__msadpcm(pWav, framesToRead, devnull); - } else if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - framesRead = drwav_read_pcm_frames_s16__ima(pWav, framesToRead, devnull); - } else { - DRWAV_ASSERT(DRWAV_FALSE); /* If this assertion is triggered it means I've implemented a new compressed format but forgot to add a branch for it here. */ - } - - if (framesRead != framesToRead) { - return DRWAV_FALSE; - } - - offsetInFrames -= framesRead; - } - } - } else { - drwav_uint64 totalSizeInBytes; - drwav_uint64 currentBytePos; - drwav_uint64 targetBytePos; - drwav_uint64 offset; - drwav_uint32 bytesPerFrame; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return DRWAV_FALSE; /* Not able to calculate offset. */ - } - - totalSizeInBytes = pWav->totalPCMFrameCount * bytesPerFrame; - /*DRWAV_ASSERT(totalSizeInBytes >= pWav->bytesRemaining);*/ - - currentBytePos = totalSizeInBytes - pWav->bytesRemaining; - targetBytePos = targetFrameIndex * bytesPerFrame; - - if (currentBytePos < targetBytePos) { - /* Offset forwards. */ - offset = (targetBytePos - currentBytePos); - } else { - /* Offset backwards. */ - if (!drwav_seek_to_first_pcm_frame(pWav)) { - return DRWAV_FALSE; - } - offset = targetBytePos; - } - - while (offset > 0) { - int offset32 = ((offset > INT_MAX) ? INT_MAX : (int)offset); - if (!pWav->onSeek(pWav->pUserData, offset32, drwav_seek_origin_current)) { - return DRWAV_FALSE; - } - - pWav->readCursorInPCMFrames += offset32 / bytesPerFrame; - pWav->bytesRemaining -= offset32; - offset -= offset32; - } - } - - return DRWAV_TRUE; -} - -DRWAV_API drwav_result drwav_get_cursor_in_pcm_frames(drwav* pWav, drwav_uint64* pCursor) -{ - if (pCursor == NULL) { - return DRWAV_INVALID_ARGS; - } - - *pCursor = 0; /* Safety. */ - - if (pWav == NULL) { - return DRWAV_INVALID_ARGS; - } - - *pCursor = pWav->readCursorInPCMFrames; - - return DRWAV_SUCCESS; -} - -DRWAV_API drwav_result drwav_get_length_in_pcm_frames(drwav* pWav, drwav_uint64* pLength) -{ - if (pLength == NULL) { - return DRWAV_INVALID_ARGS; - } - - *pLength = 0; /* Safety. */ - - if (pWav == NULL) { - return DRWAV_INVALID_ARGS; - } - - *pLength = pWav->totalPCMFrameCount; - - return DRWAV_SUCCESS; -} - - -DRWAV_API size_t drwav_write_raw(drwav* pWav, size_t bytesToWrite, const void* pData) -{ - size_t bytesWritten; - - if (pWav == NULL || bytesToWrite == 0 || pData == NULL) { - return 0; - } - - bytesWritten = pWav->onWrite(pWav->pUserData, pData, bytesToWrite); - pWav->dataChunkDataSize += bytesWritten; - - return bytesWritten; -} - -DRWAV_API drwav_uint64 drwav_write_pcm_frames_le(drwav* pWav, drwav_uint64 framesToWrite, const void* pData) -{ - drwav_uint64 bytesToWrite; - drwav_uint64 bytesWritten; - const drwav_uint8* pRunningData; - - if (pWav == NULL || framesToWrite == 0 || pData == NULL) { - return 0; - } - - bytesToWrite = ((framesToWrite * pWav->channels * pWav->bitsPerSample) / 8); - if (bytesToWrite > DRWAV_SIZE_MAX) { - return 0; - } - - bytesWritten = 0; - pRunningData = (const drwav_uint8*)pData; - - while (bytesToWrite > 0) { - size_t bytesJustWritten; - drwav_uint64 bytesToWriteThisIteration; - - bytesToWriteThisIteration = bytesToWrite; - DRWAV_ASSERT(bytesToWriteThisIteration <= DRWAV_SIZE_MAX); /* <-- This is checked above. */ - - bytesJustWritten = drwav_write_raw(pWav, (size_t)bytesToWriteThisIteration, pRunningData); - if (bytesJustWritten == 0) { - break; - } - - bytesToWrite -= bytesJustWritten; - bytesWritten += bytesJustWritten; - pRunningData += bytesJustWritten; - } - - return (bytesWritten * 8) / pWav->bitsPerSample / pWav->channels; -} - -DRWAV_API drwav_uint64 drwav_write_pcm_frames_be(drwav* pWav, drwav_uint64 framesToWrite, const void* pData) -{ - drwav_uint64 bytesToWrite; - drwav_uint64 bytesWritten; - drwav_uint32 bytesPerSample; - const drwav_uint8* pRunningData; - - if (pWav == NULL || framesToWrite == 0 || pData == NULL) { - return 0; - } - - bytesToWrite = ((framesToWrite * pWav->channels * pWav->bitsPerSample) / 8); - if (bytesToWrite > DRWAV_SIZE_MAX) { - return 0; - } - - bytesWritten = 0; - pRunningData = (const drwav_uint8*)pData; - - bytesPerSample = drwav_get_bytes_per_pcm_frame(pWav) / pWav->channels; - if (bytesPerSample == 0) { - return 0; /* Cannot determine bytes per sample, or bytes per sample is less than one byte. */ - } - - while (bytesToWrite > 0) { - drwav_uint8 temp[4096]; - drwav_uint32 sampleCount; - size_t bytesJustWritten; - drwav_uint64 bytesToWriteThisIteration; - - bytesToWriteThisIteration = bytesToWrite; - DRWAV_ASSERT(bytesToWriteThisIteration <= DRWAV_SIZE_MAX); /* <-- This is checked above. */ - - /* - WAV files are always little-endian. We need to byte swap on big-endian architectures. Since our input buffer is read-only we need - to use an intermediary buffer for the conversion. - */ - sampleCount = sizeof(temp)/bytesPerSample; - - if (bytesToWriteThisIteration > ((drwav_uint64)sampleCount)*bytesPerSample) { - bytesToWriteThisIteration = ((drwav_uint64)sampleCount)*bytesPerSample; - } - - DRWAV_COPY_MEMORY(temp, pRunningData, (size_t)bytesToWriteThisIteration); - drwav__bswap_samples(temp, sampleCount, bytesPerSample); - - bytesJustWritten = drwav_write_raw(pWav, (size_t)bytesToWriteThisIteration, temp); - if (bytesJustWritten == 0) { - break; - } - - bytesToWrite -= bytesJustWritten; - bytesWritten += bytesJustWritten; - pRunningData += bytesJustWritten; - } - - return (bytesWritten * 8) / pWav->bitsPerSample / pWav->channels; -} - -DRWAV_API drwav_uint64 drwav_write_pcm_frames(drwav* pWav, drwav_uint64 framesToWrite, const void* pData) -{ - if (drwav__is_little_endian()) { - return drwav_write_pcm_frames_le(pWav, framesToWrite, pData); - } else { - return drwav_write_pcm_frames_be(pWav, framesToWrite, pData); - } -} - - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__msadpcm(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead = 0; - - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(framesToRead > 0); - - /* TODO: Lots of room for optimization here. */ - - while (pWav->readCursorInPCMFrames < pWav->totalPCMFrameCount) { - DRWAV_ASSERT(framesToRead > 0); /* This loop iteration will never get hit with framesToRead == 0 because it's asserted at the top, and we check for 0 inside the loop just below. */ - - /* If there are no cached frames we need to load a new block. */ - if (pWav->msadpcm.cachedFrameCount == 0 && pWav->msadpcm.bytesRemainingInBlock == 0) { - if (pWav->channels == 1) { - /* Mono. */ - drwav_uint8 header[7]; - if (pWav->onRead(pWav->pUserData, header, sizeof(header)) != sizeof(header)) { - return totalFramesRead; - } - pWav->msadpcm.bytesRemainingInBlock = pWav->fmt.blockAlign - sizeof(header); - - pWav->msadpcm.predictor[0] = header[0]; - pWav->msadpcm.delta[0] = drwav_bytes_to_s16(header + 1); - pWav->msadpcm.prevFrames[0][1] = (drwav_int32)drwav_bytes_to_s16(header + 3); - pWav->msadpcm.prevFrames[0][0] = (drwav_int32)drwav_bytes_to_s16(header + 5); - pWav->msadpcm.cachedFrames[2] = pWav->msadpcm.prevFrames[0][0]; - pWav->msadpcm.cachedFrames[3] = pWav->msadpcm.prevFrames[0][1]; - pWav->msadpcm.cachedFrameCount = 2; - } else { - /* Stereo. */ - drwav_uint8 header[14]; - if (pWav->onRead(pWav->pUserData, header, sizeof(header)) != sizeof(header)) { - return totalFramesRead; - } - pWav->msadpcm.bytesRemainingInBlock = pWav->fmt.blockAlign - sizeof(header); - - pWav->msadpcm.predictor[0] = header[0]; - pWav->msadpcm.predictor[1] = header[1]; - pWav->msadpcm.delta[0] = drwav_bytes_to_s16(header + 2); - pWav->msadpcm.delta[1] = drwav_bytes_to_s16(header + 4); - pWav->msadpcm.prevFrames[0][1] = (drwav_int32)drwav_bytes_to_s16(header + 6); - pWav->msadpcm.prevFrames[1][1] = (drwav_int32)drwav_bytes_to_s16(header + 8); - pWav->msadpcm.prevFrames[0][0] = (drwav_int32)drwav_bytes_to_s16(header + 10); - pWav->msadpcm.prevFrames[1][0] = (drwav_int32)drwav_bytes_to_s16(header + 12); - - pWav->msadpcm.cachedFrames[0] = pWav->msadpcm.prevFrames[0][0]; - pWav->msadpcm.cachedFrames[1] = pWav->msadpcm.prevFrames[1][0]; - pWav->msadpcm.cachedFrames[2] = pWav->msadpcm.prevFrames[0][1]; - pWav->msadpcm.cachedFrames[3] = pWav->msadpcm.prevFrames[1][1]; - pWav->msadpcm.cachedFrameCount = 2; - } - } - - /* Output anything that's cached. */ - while (framesToRead > 0 && pWav->msadpcm.cachedFrameCount > 0 && pWav->readCursorInPCMFrames < pWav->totalPCMFrameCount) { - if (pBufferOut != NULL) { - drwav_uint32 iSample = 0; - for (iSample = 0; iSample < pWav->channels; iSample += 1) { - pBufferOut[iSample] = (drwav_int16)pWav->msadpcm.cachedFrames[(drwav_countof(pWav->msadpcm.cachedFrames) - (pWav->msadpcm.cachedFrameCount*pWav->channels)) + iSample]; - } - - pBufferOut += pWav->channels; - } - - framesToRead -= 1; - totalFramesRead += 1; - pWav->readCursorInPCMFrames += 1; - pWav->msadpcm.cachedFrameCount -= 1; - } - - if (framesToRead == 0) { - break; - } - - - /* - If there's nothing left in the cache, just go ahead and load more. If there's nothing left to load in the current block we just continue to the next - loop iteration which will trigger the loading of a new block. - */ - if (pWav->msadpcm.cachedFrameCount == 0) { - if (pWav->msadpcm.bytesRemainingInBlock == 0) { - continue; - } else { - static drwav_int32 adaptationTable[] = { - 230, 230, 230, 230, 307, 409, 512, 614, - 768, 614, 512, 409, 307, 230, 230, 230 - }; - static drwav_int32 coeff1Table[] = { 256, 512, 0, 192, 240, 460, 392 }; - static drwav_int32 coeff2Table[] = { 0, -256, 0, 64, 0, -208, -232 }; - - drwav_uint8 nibbles; - drwav_int32 nibble0; - drwav_int32 nibble1; - - if (pWav->onRead(pWav->pUserData, &nibbles, 1) != 1) { - return totalFramesRead; - } - pWav->msadpcm.bytesRemainingInBlock -= 1; - - /* TODO: Optimize away these if statements. */ - nibble0 = ((nibbles & 0xF0) >> 4); if ((nibbles & 0x80)) { nibble0 |= 0xFFFFFFF0UL; } - nibble1 = ((nibbles & 0x0F) >> 0); if ((nibbles & 0x08)) { nibble1 |= 0xFFFFFFF0UL; } - - if (pWav->channels == 1) { - /* Mono. */ - drwav_int32 newSample0; - drwav_int32 newSample1; - - newSample0 = ((pWav->msadpcm.prevFrames[0][1] * coeff1Table[pWav->msadpcm.predictor[0]]) + (pWav->msadpcm.prevFrames[0][0] * coeff2Table[pWav->msadpcm.predictor[0]])) >> 8; - newSample0 += nibble0 * pWav->msadpcm.delta[0]; - newSample0 = drwav_clamp(newSample0, -32768, 32767); - - pWav->msadpcm.delta[0] = (adaptationTable[((nibbles & 0xF0) >> 4)] * pWav->msadpcm.delta[0]) >> 8; - if (pWav->msadpcm.delta[0] < 16) { - pWav->msadpcm.delta[0] = 16; - } - - pWav->msadpcm.prevFrames[0][0] = pWav->msadpcm.prevFrames[0][1]; - pWav->msadpcm.prevFrames[0][1] = newSample0; - - - newSample1 = ((pWav->msadpcm.prevFrames[0][1] * coeff1Table[pWav->msadpcm.predictor[0]]) + (pWav->msadpcm.prevFrames[0][0] * coeff2Table[pWav->msadpcm.predictor[0]])) >> 8; - newSample1 += nibble1 * pWav->msadpcm.delta[0]; - newSample1 = drwav_clamp(newSample1, -32768, 32767); - - pWav->msadpcm.delta[0] = (adaptationTable[((nibbles & 0x0F) >> 0)] * pWav->msadpcm.delta[0]) >> 8; - if (pWav->msadpcm.delta[0] < 16) { - pWav->msadpcm.delta[0] = 16; - } - - pWav->msadpcm.prevFrames[0][0] = pWav->msadpcm.prevFrames[0][1]; - pWav->msadpcm.prevFrames[0][1] = newSample1; - - - pWav->msadpcm.cachedFrames[2] = newSample0; - pWav->msadpcm.cachedFrames[3] = newSample1; - pWav->msadpcm.cachedFrameCount = 2; - } else { - /* Stereo. */ - drwav_int32 newSample0; - drwav_int32 newSample1; - - /* Left. */ - newSample0 = ((pWav->msadpcm.prevFrames[0][1] * coeff1Table[pWav->msadpcm.predictor[0]]) + (pWav->msadpcm.prevFrames[0][0] * coeff2Table[pWav->msadpcm.predictor[0]])) >> 8; - newSample0 += nibble0 * pWav->msadpcm.delta[0]; - newSample0 = drwav_clamp(newSample0, -32768, 32767); - - pWav->msadpcm.delta[0] = (adaptationTable[((nibbles & 0xF0) >> 4)] * pWav->msadpcm.delta[0]) >> 8; - if (pWav->msadpcm.delta[0] < 16) { - pWav->msadpcm.delta[0] = 16; - } - - pWav->msadpcm.prevFrames[0][0] = pWav->msadpcm.prevFrames[0][1]; - pWav->msadpcm.prevFrames[0][1] = newSample0; - - - /* Right. */ - newSample1 = ((pWav->msadpcm.prevFrames[1][1] * coeff1Table[pWav->msadpcm.predictor[1]]) + (pWav->msadpcm.prevFrames[1][0] * coeff2Table[pWav->msadpcm.predictor[1]])) >> 8; - newSample1 += nibble1 * pWav->msadpcm.delta[1]; - newSample1 = drwav_clamp(newSample1, -32768, 32767); - - pWav->msadpcm.delta[1] = (adaptationTable[((nibbles & 0x0F) >> 0)] * pWav->msadpcm.delta[1]) >> 8; - if (pWav->msadpcm.delta[1] < 16) { - pWav->msadpcm.delta[1] = 16; - } - - pWav->msadpcm.prevFrames[1][0] = pWav->msadpcm.prevFrames[1][1]; - pWav->msadpcm.prevFrames[1][1] = newSample1; - - pWav->msadpcm.cachedFrames[2] = newSample0; - pWav->msadpcm.cachedFrames[3] = newSample1; - pWav->msadpcm.cachedFrameCount = 1; - } - } - } - } - - return totalFramesRead; -} - - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__ima(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead = 0; - drwav_uint32 iChannel; - - static drwav_int32 indexTable[16] = { - -1, -1, -1, -1, 2, 4, 6, 8, - -1, -1, -1, -1, 2, 4, 6, 8 - }; - - static drwav_int32 stepTable[89] = { - 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, - 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, - 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, - 130, 143, 157, 173, 190, 209, 230, 253, 279, 307, - 337, 371, 408, 449, 494, 544, 598, 658, 724, 796, - 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, - 2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358, - 5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899, - 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767 - }; - - DRWAV_ASSERT(pWav != NULL); - DRWAV_ASSERT(framesToRead > 0); - - /* TODO: Lots of room for optimization here. */ - - while (pWav->readCursorInPCMFrames < pWav->totalPCMFrameCount) { - DRWAV_ASSERT(framesToRead > 0); /* This loop iteration will never get hit with framesToRead == 0 because it's asserted at the top, and we check for 0 inside the loop just below. */ - - /* If there are no cached samples we need to load a new block. */ - if (pWav->ima.cachedFrameCount == 0 && pWav->ima.bytesRemainingInBlock == 0) { - if (pWav->channels == 1) { - /* Mono. */ - drwav_uint8 header[4]; - if (pWav->onRead(pWav->pUserData, header, sizeof(header)) != sizeof(header)) { - return totalFramesRead; - } - pWav->ima.bytesRemainingInBlock = pWav->fmt.blockAlign - sizeof(header); - - if (header[2] >= drwav_countof(stepTable)) { - pWav->onSeek(pWav->pUserData, pWav->ima.bytesRemainingInBlock, drwav_seek_origin_current); - pWav->ima.bytesRemainingInBlock = 0; - return totalFramesRead; /* Invalid data. */ - } - - pWav->ima.predictor[0] = (drwav_int16)drwav_bytes_to_u16(header + 0); - pWav->ima.stepIndex[0] = drwav_clamp(header[2], 0, (drwav_int32)drwav_countof(stepTable)-1); /* Clamp not necessary because we checked above, but adding here to silence a static analysis warning. */ - pWav->ima.cachedFrames[drwav_countof(pWav->ima.cachedFrames) - 1] = pWav->ima.predictor[0]; - pWav->ima.cachedFrameCount = 1; - } else { - /* Stereo. */ - drwav_uint8 header[8]; - if (pWav->onRead(pWav->pUserData, header, sizeof(header)) != sizeof(header)) { - return totalFramesRead; - } - pWav->ima.bytesRemainingInBlock = pWav->fmt.blockAlign - sizeof(header); - - if (header[2] >= drwav_countof(stepTable) || header[6] >= drwav_countof(stepTable)) { - pWav->onSeek(pWav->pUserData, pWav->ima.bytesRemainingInBlock, drwav_seek_origin_current); - pWav->ima.bytesRemainingInBlock = 0; - return totalFramesRead; /* Invalid data. */ - } - - pWav->ima.predictor[0] = drwav_bytes_to_s16(header + 0); - pWav->ima.stepIndex[0] = drwav_clamp(header[2], 0, (drwav_int32)drwav_countof(stepTable)-1); /* Clamp not necessary because we checked above, but adding here to silence a static analysis warning. */ - pWav->ima.predictor[1] = drwav_bytes_to_s16(header + 4); - pWav->ima.stepIndex[1] = drwav_clamp(header[6], 0, (drwav_int32)drwav_countof(stepTable)-1); /* Clamp not necessary because we checked above, but adding here to silence a static analysis warning. */ - - pWav->ima.cachedFrames[drwav_countof(pWav->ima.cachedFrames) - 2] = pWav->ima.predictor[0]; - pWav->ima.cachedFrames[drwav_countof(pWav->ima.cachedFrames) - 1] = pWav->ima.predictor[1]; - pWav->ima.cachedFrameCount = 1; - } - } - - /* Output anything that's cached. */ - while (framesToRead > 0 && pWav->ima.cachedFrameCount > 0 && pWav->readCursorInPCMFrames < pWav->totalPCMFrameCount) { - if (pBufferOut != NULL) { - drwav_uint32 iSample; - for (iSample = 0; iSample < pWav->channels; iSample += 1) { - pBufferOut[iSample] = (drwav_int16)pWav->ima.cachedFrames[(drwav_countof(pWav->ima.cachedFrames) - (pWav->ima.cachedFrameCount*pWav->channels)) + iSample]; - } - pBufferOut += pWav->channels; - } - - framesToRead -= 1; - totalFramesRead += 1; - pWav->readCursorInPCMFrames += 1; - pWav->ima.cachedFrameCount -= 1; - } - - if (framesToRead == 0) { - break; - } - - /* - If there's nothing left in the cache, just go ahead and load more. If there's nothing left to load in the current block we just continue to the next - loop iteration which will trigger the loading of a new block. - */ - if (pWav->ima.cachedFrameCount == 0) { - if (pWav->ima.bytesRemainingInBlock == 0) { - continue; - } else { - /* - From what I can tell with stereo streams, it looks like every 4 bytes (8 samples) is for one channel. So it goes 4 bytes for the - left channel, 4 bytes for the right channel. - */ - pWav->ima.cachedFrameCount = 8; - for (iChannel = 0; iChannel < pWav->channels; ++iChannel) { - drwav_uint32 iByte; - drwav_uint8 nibbles[4]; - if (pWav->onRead(pWav->pUserData, &nibbles, 4) != 4) { - pWav->ima.cachedFrameCount = 0; - return totalFramesRead; - } - pWav->ima.bytesRemainingInBlock -= 4; - - for (iByte = 0; iByte < 4; ++iByte) { - drwav_uint8 nibble0 = ((nibbles[iByte] & 0x0F) >> 0); - drwav_uint8 nibble1 = ((nibbles[iByte] & 0xF0) >> 4); - - drwav_int32 step = stepTable[pWav->ima.stepIndex[iChannel]]; - drwav_int32 predictor = pWav->ima.predictor[iChannel]; - - drwav_int32 diff = step >> 3; - if (nibble0 & 1) diff += step >> 2; - if (nibble0 & 2) diff += step >> 1; - if (nibble0 & 4) diff += step; - if (nibble0 & 8) diff = -diff; - - predictor = drwav_clamp(predictor + diff, -32768, 32767); - pWav->ima.predictor[iChannel] = predictor; - pWav->ima.stepIndex[iChannel] = drwav_clamp(pWav->ima.stepIndex[iChannel] + indexTable[nibble0], 0, (drwav_int32)drwav_countof(stepTable)-1); - pWav->ima.cachedFrames[(drwav_countof(pWav->ima.cachedFrames) - (pWav->ima.cachedFrameCount*pWav->channels)) + (iByte*2+0)*pWav->channels + iChannel] = predictor; - - - step = stepTable[pWav->ima.stepIndex[iChannel]]; - predictor = pWav->ima.predictor[iChannel]; - - diff = step >> 3; - if (nibble1 & 1) diff += step >> 2; - if (nibble1 & 2) diff += step >> 1; - if (nibble1 & 4) diff += step; - if (nibble1 & 8) diff = -diff; - - predictor = drwav_clamp(predictor + diff, -32768, 32767); - pWav->ima.predictor[iChannel] = predictor; - pWav->ima.stepIndex[iChannel] = drwav_clamp(pWav->ima.stepIndex[iChannel] + indexTable[nibble1], 0, (drwav_int32)drwav_countof(stepTable)-1); - pWav->ima.cachedFrames[(drwav_countof(pWav->ima.cachedFrames) - (pWav->ima.cachedFrameCount*pWav->channels)) + (iByte*2+1)*pWav->channels + iChannel] = predictor; - } - } - } - } - } - - return totalFramesRead; -} - - -#ifndef DR_WAV_NO_CONVERSION_API -static unsigned short g_drwavAlawTable[256] = { - 0xEA80, 0xEB80, 0xE880, 0xE980, 0xEE80, 0xEF80, 0xEC80, 0xED80, 0xE280, 0xE380, 0xE080, 0xE180, 0xE680, 0xE780, 0xE480, 0xE580, - 0xF540, 0xF5C0, 0xF440, 0xF4C0, 0xF740, 0xF7C0, 0xF640, 0xF6C0, 0xF140, 0xF1C0, 0xF040, 0xF0C0, 0xF340, 0xF3C0, 0xF240, 0xF2C0, - 0xAA00, 0xAE00, 0xA200, 0xA600, 0xBA00, 0xBE00, 0xB200, 0xB600, 0x8A00, 0x8E00, 0x8200, 0x8600, 0x9A00, 0x9E00, 0x9200, 0x9600, - 0xD500, 0xD700, 0xD100, 0xD300, 0xDD00, 0xDF00, 0xD900, 0xDB00, 0xC500, 0xC700, 0xC100, 0xC300, 0xCD00, 0xCF00, 0xC900, 0xCB00, - 0xFEA8, 0xFEB8, 0xFE88, 0xFE98, 0xFEE8, 0xFEF8, 0xFEC8, 0xFED8, 0xFE28, 0xFE38, 0xFE08, 0xFE18, 0xFE68, 0xFE78, 0xFE48, 0xFE58, - 0xFFA8, 0xFFB8, 0xFF88, 0xFF98, 0xFFE8, 0xFFF8, 0xFFC8, 0xFFD8, 0xFF28, 0xFF38, 0xFF08, 0xFF18, 0xFF68, 0xFF78, 0xFF48, 0xFF58, - 0xFAA0, 0xFAE0, 0xFA20, 0xFA60, 0xFBA0, 0xFBE0, 0xFB20, 0xFB60, 0xF8A0, 0xF8E0, 0xF820, 0xF860, 0xF9A0, 0xF9E0, 0xF920, 0xF960, - 0xFD50, 0xFD70, 0xFD10, 0xFD30, 0xFDD0, 0xFDF0, 0xFD90, 0xFDB0, 0xFC50, 0xFC70, 0xFC10, 0xFC30, 0xFCD0, 0xFCF0, 0xFC90, 0xFCB0, - 0x1580, 0x1480, 0x1780, 0x1680, 0x1180, 0x1080, 0x1380, 0x1280, 0x1D80, 0x1C80, 0x1F80, 0x1E80, 0x1980, 0x1880, 0x1B80, 0x1A80, - 0x0AC0, 0x0A40, 0x0BC0, 0x0B40, 0x08C0, 0x0840, 0x09C0, 0x0940, 0x0EC0, 0x0E40, 0x0FC0, 0x0F40, 0x0CC0, 0x0C40, 0x0DC0, 0x0D40, - 0x5600, 0x5200, 0x5E00, 0x5A00, 0x4600, 0x4200, 0x4E00, 0x4A00, 0x7600, 0x7200, 0x7E00, 0x7A00, 0x6600, 0x6200, 0x6E00, 0x6A00, - 0x2B00, 0x2900, 0x2F00, 0x2D00, 0x2300, 0x2100, 0x2700, 0x2500, 0x3B00, 0x3900, 0x3F00, 0x3D00, 0x3300, 0x3100, 0x3700, 0x3500, - 0x0158, 0x0148, 0x0178, 0x0168, 0x0118, 0x0108, 0x0138, 0x0128, 0x01D8, 0x01C8, 0x01F8, 0x01E8, 0x0198, 0x0188, 0x01B8, 0x01A8, - 0x0058, 0x0048, 0x0078, 0x0068, 0x0018, 0x0008, 0x0038, 0x0028, 0x00D8, 0x00C8, 0x00F8, 0x00E8, 0x0098, 0x0088, 0x00B8, 0x00A8, - 0x0560, 0x0520, 0x05E0, 0x05A0, 0x0460, 0x0420, 0x04E0, 0x04A0, 0x0760, 0x0720, 0x07E0, 0x07A0, 0x0660, 0x0620, 0x06E0, 0x06A0, - 0x02B0, 0x0290, 0x02F0, 0x02D0, 0x0230, 0x0210, 0x0270, 0x0250, 0x03B0, 0x0390, 0x03F0, 0x03D0, 0x0330, 0x0310, 0x0370, 0x0350 -}; - -static unsigned short g_drwavMulawTable[256] = { - 0x8284, 0x8684, 0x8A84, 0x8E84, 0x9284, 0x9684, 0x9A84, 0x9E84, 0xA284, 0xA684, 0xAA84, 0xAE84, 0xB284, 0xB684, 0xBA84, 0xBE84, - 0xC184, 0xC384, 0xC584, 0xC784, 0xC984, 0xCB84, 0xCD84, 0xCF84, 0xD184, 0xD384, 0xD584, 0xD784, 0xD984, 0xDB84, 0xDD84, 0xDF84, - 0xE104, 0xE204, 0xE304, 0xE404, 0xE504, 0xE604, 0xE704, 0xE804, 0xE904, 0xEA04, 0xEB04, 0xEC04, 0xED04, 0xEE04, 0xEF04, 0xF004, - 0xF0C4, 0xF144, 0xF1C4, 0xF244, 0xF2C4, 0xF344, 0xF3C4, 0xF444, 0xF4C4, 0xF544, 0xF5C4, 0xF644, 0xF6C4, 0xF744, 0xF7C4, 0xF844, - 0xF8A4, 0xF8E4, 0xF924, 0xF964, 0xF9A4, 0xF9E4, 0xFA24, 0xFA64, 0xFAA4, 0xFAE4, 0xFB24, 0xFB64, 0xFBA4, 0xFBE4, 0xFC24, 0xFC64, - 0xFC94, 0xFCB4, 0xFCD4, 0xFCF4, 0xFD14, 0xFD34, 0xFD54, 0xFD74, 0xFD94, 0xFDB4, 0xFDD4, 0xFDF4, 0xFE14, 0xFE34, 0xFE54, 0xFE74, - 0xFE8C, 0xFE9C, 0xFEAC, 0xFEBC, 0xFECC, 0xFEDC, 0xFEEC, 0xFEFC, 0xFF0C, 0xFF1C, 0xFF2C, 0xFF3C, 0xFF4C, 0xFF5C, 0xFF6C, 0xFF7C, - 0xFF88, 0xFF90, 0xFF98, 0xFFA0, 0xFFA8, 0xFFB0, 0xFFB8, 0xFFC0, 0xFFC8, 0xFFD0, 0xFFD8, 0xFFE0, 0xFFE8, 0xFFF0, 0xFFF8, 0x0000, - 0x7D7C, 0x797C, 0x757C, 0x717C, 0x6D7C, 0x697C, 0x657C, 0x617C, 0x5D7C, 0x597C, 0x557C, 0x517C, 0x4D7C, 0x497C, 0x457C, 0x417C, - 0x3E7C, 0x3C7C, 0x3A7C, 0x387C, 0x367C, 0x347C, 0x327C, 0x307C, 0x2E7C, 0x2C7C, 0x2A7C, 0x287C, 0x267C, 0x247C, 0x227C, 0x207C, - 0x1EFC, 0x1DFC, 0x1CFC, 0x1BFC, 0x1AFC, 0x19FC, 0x18FC, 0x17FC, 0x16FC, 0x15FC, 0x14FC, 0x13FC, 0x12FC, 0x11FC, 0x10FC, 0x0FFC, - 0x0F3C, 0x0EBC, 0x0E3C, 0x0DBC, 0x0D3C, 0x0CBC, 0x0C3C, 0x0BBC, 0x0B3C, 0x0ABC, 0x0A3C, 0x09BC, 0x093C, 0x08BC, 0x083C, 0x07BC, - 0x075C, 0x071C, 0x06DC, 0x069C, 0x065C, 0x061C, 0x05DC, 0x059C, 0x055C, 0x051C, 0x04DC, 0x049C, 0x045C, 0x041C, 0x03DC, 0x039C, - 0x036C, 0x034C, 0x032C, 0x030C, 0x02EC, 0x02CC, 0x02AC, 0x028C, 0x026C, 0x024C, 0x022C, 0x020C, 0x01EC, 0x01CC, 0x01AC, 0x018C, - 0x0174, 0x0164, 0x0154, 0x0144, 0x0134, 0x0124, 0x0114, 0x0104, 0x00F4, 0x00E4, 0x00D4, 0x00C4, 0x00B4, 0x00A4, 0x0094, 0x0084, - 0x0078, 0x0070, 0x0068, 0x0060, 0x0058, 0x0050, 0x0048, 0x0040, 0x0038, 0x0030, 0x0028, 0x0020, 0x0018, 0x0010, 0x0008, 0x0000 -}; - -static DRWAV_INLINE drwav_int16 drwav__alaw_to_s16(drwav_uint8 sampleIn) -{ - return (short)g_drwavAlawTable[sampleIn]; -} - -static DRWAV_INLINE drwav_int16 drwav__mulaw_to_s16(drwav_uint8 sampleIn) -{ - return (short)g_drwavMulawTable[sampleIn]; -} - - - -DRWAV_PRIVATE void drwav__pcm_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t totalSampleCount, unsigned int bytesPerSample) -{ - size_t i; - - /* Special case for 8-bit sample data because it's treated as unsigned. */ - if (bytesPerSample == 1) { - drwav_u8_to_s16(pOut, pIn, totalSampleCount); - return; - } - - - /* Slightly more optimal implementation for common formats. */ - if (bytesPerSample == 2) { - for (i = 0; i < totalSampleCount; ++i) { - *pOut++ = ((const drwav_int16*)pIn)[i]; - } - return; - } - if (bytesPerSample == 3) { - drwav_s24_to_s16(pOut, pIn, totalSampleCount); - return; - } - if (bytesPerSample == 4) { - drwav_s32_to_s16(pOut, (const drwav_int32*)pIn, totalSampleCount); - return; - } - - - /* Anything more than 64 bits per sample is not supported. */ - if (bytesPerSample > 8) { - DRWAV_ZERO_MEMORY(pOut, totalSampleCount * sizeof(*pOut)); - return; - } - - - /* Generic, slow converter. */ - for (i = 0; i < totalSampleCount; ++i) { - drwav_uint64 sample = 0; - unsigned int shift = (8 - bytesPerSample) * 8; - - unsigned int j; - for (j = 0; j < bytesPerSample; j += 1) { - DRWAV_ASSERT(j < 8); - sample |= (drwav_uint64)(pIn[j]) << shift; - shift += 8; - } - - pIn += j; - *pOut++ = (drwav_int16)((drwav_int64)sample >> 48); - } -} - -DRWAV_PRIVATE void drwav__ieee_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t totalSampleCount, unsigned int bytesPerSample) -{ - if (bytesPerSample == 4) { - drwav_f32_to_s16(pOut, (const float*)pIn, totalSampleCount); - return; - } else if (bytesPerSample == 8) { - drwav_f64_to_s16(pOut, (const double*)pIn, totalSampleCount); - return; - } else { - /* Only supporting 32- and 64-bit float. Output silence in all other cases. Contributions welcome for 16-bit float. */ - DRWAV_ZERO_MEMORY(pOut, totalSampleCount * sizeof(*pOut)); - return; - } -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__pcm(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - /* Fast path. */ - if ((pWav->translatedFormatTag == DR_WAVE_FORMAT_PCM && pWav->bitsPerSample == 16) || pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, pBufferOut); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__pcm_to_s16(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__ieee(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__ieee_to_s16(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); /* Safe cast. */ - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__alaw(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_alaw_to_s16(pBufferOut, sampleData, (size_t)samplesRead); - - /* - For some reason libsndfile seems to be returning samples of the opposite sign for a-law, but only - with AIFF files. For WAV files it seems to be the same as dr_wav. This is resulting in dr_wav's - automated tests failing. I'm not sure which is correct, but will assume dr_wav. If we're enforcing - libsndfile compatibility we'll swap the signs here. - */ - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s16__mulaw(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_mulaw_to_s16(pBufferOut, sampleData, (size_t)samplesRead); - - /* - Just like with alaw, for some reason the signs between libsndfile and dr_wav are opposite. We just need to - swap the sign if we're compiling with libsndfile compatiblity so our automated tests don't fail. - */ - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - if (pWav == NULL || framesToRead == 0) { - return 0; - } - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - /* Don't try to read more samples than can potentially fit in the output buffer. */ - if (framesToRead * pWav->channels * sizeof(drwav_int16) > DRWAV_SIZE_MAX) { - framesToRead = DRWAV_SIZE_MAX / sizeof(drwav_int16) / pWav->channels; - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_PCM) { - return drwav_read_pcm_frames_s16__pcm(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_IEEE_FLOAT) { - return drwav_read_pcm_frames_s16__ieee(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ALAW) { - return drwav_read_pcm_frames_s16__alaw(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_MULAW) { - return drwav_read_pcm_frames_s16__mulaw(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM) { - return drwav_read_pcm_frames_s16__msadpcm(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - return drwav_read_pcm_frames_s16__ima(pWav, framesToRead, pBufferOut); - } - - return 0; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16le(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_s16(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_FALSE) { - drwav__bswap_samples_s16(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s16be(drwav* pWav, drwav_uint64 framesToRead, drwav_int16* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_s16(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_TRUE) { - drwav__bswap_samples_s16(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - - -DRWAV_API void drwav_u8_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - int r; - size_t i; - for (i = 0; i < sampleCount; ++i) { - int x = pIn[i]; - r = x << 8; - r = r - 32768; - pOut[i] = (short)r; - } -} - -DRWAV_API void drwav_s24_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - int r; - size_t i; - for (i = 0; i < sampleCount; ++i) { - int x = ((int)(((unsigned int)(((const drwav_uint8*)pIn)[i*3+0]) << 8) | ((unsigned int)(((const drwav_uint8*)pIn)[i*3+1]) << 16) | ((unsigned int)(((const drwav_uint8*)pIn)[i*3+2])) << 24)) >> 8; - r = x >> 8; - pOut[i] = (short)r; - } -} - -DRWAV_API void drwav_s32_to_s16(drwav_int16* pOut, const drwav_int32* pIn, size_t sampleCount) -{ - int r; - size_t i; - for (i = 0; i < sampleCount; ++i) { - int x = pIn[i]; - r = x >> 16; - pOut[i] = (short)r; - } -} - -DRWAV_API void drwav_f32_to_s16(drwav_int16* pOut, const float* pIn, size_t sampleCount) -{ - int r; - size_t i; - for (i = 0; i < sampleCount; ++i) { - float x = pIn[i]; - float c; - c = ((x < -1) ? -1 : ((x > 1) ? 1 : x)); - c = c + 1; - r = (int)(c * 32767.5f); - r = r - 32768; - pOut[i] = (short)r; - } -} - -DRWAV_API void drwav_f64_to_s16(drwav_int16* pOut, const double* pIn, size_t sampleCount) -{ - int r; - size_t i; - for (i = 0; i < sampleCount; ++i) { - double x = pIn[i]; - double c; - c = ((x < -1) ? -1 : ((x > 1) ? 1 : x)); - c = c + 1; - r = (int)(c * 32767.5); - r = r - 32768; - pOut[i] = (short)r; - } -} - -DRWAV_API void drwav_alaw_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - for (i = 0; i < sampleCount; ++i) { - pOut[i] = drwav__alaw_to_s16(pIn[i]); - } -} - -DRWAV_API void drwav_mulaw_to_s16(drwav_int16* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - for (i = 0; i < sampleCount; ++i) { - pOut[i] = drwav__mulaw_to_s16(pIn[i]); - } -} - - -DRWAV_PRIVATE void drwav__pcm_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount, unsigned int bytesPerSample) -{ - unsigned int i; - - /* Special case for 8-bit sample data because it's treated as unsigned. */ - if (bytesPerSample == 1) { - drwav_u8_to_f32(pOut, pIn, sampleCount); - return; - } - - /* Slightly more optimal implementation for common formats. */ - if (bytesPerSample == 2) { - drwav_s16_to_f32(pOut, (const drwav_int16*)pIn, sampleCount); - return; - } - if (bytesPerSample == 3) { - drwav_s24_to_f32(pOut, pIn, sampleCount); - return; - } - if (bytesPerSample == 4) { - drwav_s32_to_f32(pOut, (const drwav_int32*)pIn, sampleCount); - return; - } - - - /* Anything more than 64 bits per sample is not supported. */ - if (bytesPerSample > 8) { - DRWAV_ZERO_MEMORY(pOut, sampleCount * sizeof(*pOut)); - return; - } - - - /* Generic, slow converter. */ - for (i = 0; i < sampleCount; ++i) { - drwav_uint64 sample = 0; - unsigned int shift = (8 - bytesPerSample) * 8; - - unsigned int j; - for (j = 0; j < bytesPerSample; j += 1) { - DRWAV_ASSERT(j < 8); - sample |= (drwav_uint64)(pIn[j]) << shift; - shift += 8; - } - - pIn += j; - *pOut++ = (float)((drwav_int64)sample / 9223372036854775807.0); - } -} - -DRWAV_PRIVATE void drwav__ieee_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount, unsigned int bytesPerSample) -{ - if (bytesPerSample == 4) { - unsigned int i; - for (i = 0; i < sampleCount; ++i) { - *pOut++ = ((const float*)pIn)[i]; - } - return; - } else if (bytesPerSample == 8) { - drwav_f64_to_f32(pOut, (const double*)pIn, sampleCount); - return; - } else { - /* Only supporting 32- and 64-bit float. Output silence in all other cases. Contributions welcome for 16-bit float. */ - DRWAV_ZERO_MEMORY(pOut, sampleCount * sizeof(*pOut)); - return; - } -} - - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_f32__pcm(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__pcm_to_f32(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_f32__msadpcm_ima(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - /* - We're just going to borrow the implementation from the drwav_read_s16() since ADPCM is a little bit more complicated than other formats and I don't - want to duplicate that code. - */ - drwav_uint64 totalFramesRead; - drwav_int16 samples16[2048]; - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, drwav_countof(samples16)/pWav->channels); - drwav_uint64 framesRead = drwav_read_pcm_frames_s16(pWav, framesToReadThisIteration, samples16); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - drwav_s16_to_f32(pBufferOut, samples16, (size_t)(framesRead*pWav->channels)); /* <-- Safe cast because we're clamping to 2048. */ - - pBufferOut += framesRead*pWav->channels; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_f32__ieee(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - /* Fast path. */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_IEEE_FLOAT && pWav->bitsPerSample == 32) { - return drwav_read_pcm_frames(pWav, framesToRead, pBufferOut); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__ieee_to_f32(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_f32__alaw(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_alaw_to_f32(pBufferOut, sampleData, (size_t)samplesRead); - - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_f32__mulaw(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_mulaw_to_f32(pBufferOut, sampleData, (size_t)samplesRead); - - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - if (pWav == NULL || framesToRead == 0) { - return 0; - } - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - /* Don't try to read more samples than can potentially fit in the output buffer. */ - if (framesToRead * pWav->channels * sizeof(float) > DRWAV_SIZE_MAX) { - framesToRead = DRWAV_SIZE_MAX / sizeof(float) / pWav->channels; - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_PCM) { - return drwav_read_pcm_frames_f32__pcm(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM || pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - return drwav_read_pcm_frames_f32__msadpcm_ima(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_IEEE_FLOAT) { - return drwav_read_pcm_frames_f32__ieee(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ALAW) { - return drwav_read_pcm_frames_f32__alaw(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_MULAW) { - return drwav_read_pcm_frames_f32__mulaw(pWav, framesToRead, pBufferOut); - } - - return 0; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32le(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_f32(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_FALSE) { - drwav__bswap_samples_f32(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_f32be(drwav* pWav, drwav_uint64 framesToRead, float* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_f32(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_TRUE) { - drwav__bswap_samples_f32(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - - -DRWAV_API void drwav_u8_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - -#ifdef DR_WAV_LIBSNDFILE_COMPAT - /* - It appears libsndfile uses slightly different logic for the u8 -> f32 conversion to dr_wav, which in my opinion is incorrect. It appears - libsndfile performs the conversion something like "f32 = (u8 / 256) * 2 - 1", however I think it should be "f32 = (u8 / 255) * 2 - 1" (note - the divisor of 256 vs 255). I use libsndfile as a benchmark for testing, so I'm therefore leaving this block here just for my automated - correctness testing. This is disabled by default. - */ - for (i = 0; i < sampleCount; ++i) { - *pOut++ = (pIn[i] / 256.0f) * 2 - 1; - } -#else - for (i = 0; i < sampleCount; ++i) { - float x = pIn[i]; - x = x * 0.00784313725490196078f; /* 0..255 to 0..2 */ - x = x - 1; /* 0..2 to -1..1 */ - - *pOut++ = x; - } -#endif -} - -DRWAV_API void drwav_s16_to_f32(float* pOut, const drwav_int16* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = pIn[i] * 0.000030517578125f; - } -} - -DRWAV_API void drwav_s24_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - double x; - drwav_uint32 a = ((drwav_uint32)(pIn[i*3+0]) << 8); - drwav_uint32 b = ((drwav_uint32)(pIn[i*3+1]) << 16); - drwav_uint32 c = ((drwav_uint32)(pIn[i*3+2]) << 24); - - x = (double)((drwav_int32)(a | b | c) >> 8); - *pOut++ = (float)(x * 0.00000011920928955078125); - } -} - -DRWAV_API void drwav_s32_to_f32(float* pOut, const drwav_int32* pIn, size_t sampleCount) -{ - size_t i; - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = (float)(pIn[i] / 2147483648.0); - } -} - -DRWAV_API void drwav_f64_to_f32(float* pOut, const double* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = (float)pIn[i]; - } -} - -DRWAV_API void drwav_alaw_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = drwav__alaw_to_s16(pIn[i]) / 32768.0f; - } -} - -DRWAV_API void drwav_mulaw_to_f32(float* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = drwav__mulaw_to_s16(pIn[i]) / 32768.0f; - } -} - - - -DRWAV_PRIVATE void drwav__pcm_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t totalSampleCount, unsigned int bytesPerSample) -{ - unsigned int i; - - /* Special case for 8-bit sample data because it's treated as unsigned. */ - if (bytesPerSample == 1) { - drwav_u8_to_s32(pOut, pIn, totalSampleCount); - return; - } - - /* Slightly more optimal implementation for common formats. */ - if (bytesPerSample == 2) { - drwav_s16_to_s32(pOut, (const drwav_int16*)pIn, totalSampleCount); - return; - } - if (bytesPerSample == 3) { - drwav_s24_to_s32(pOut, pIn, totalSampleCount); - return; - } - if (bytesPerSample == 4) { - for (i = 0; i < totalSampleCount; ++i) { - *pOut++ = ((const drwav_int32*)pIn)[i]; - } - return; - } - - - /* Anything more than 64 bits per sample is not supported. */ - if (bytesPerSample > 8) { - DRWAV_ZERO_MEMORY(pOut, totalSampleCount * sizeof(*pOut)); - return; - } - - - /* Generic, slow converter. */ - for (i = 0; i < totalSampleCount; ++i) { - drwav_uint64 sample = 0; - unsigned int shift = (8 - bytesPerSample) * 8; - - unsigned int j; - for (j = 0; j < bytesPerSample; j += 1) { - DRWAV_ASSERT(j < 8); - sample |= (drwav_uint64)(pIn[j]) << shift; - shift += 8; - } - - pIn += j; - *pOut++ = (drwav_int32)((drwav_int64)sample >> 32); - } -} - -DRWAV_PRIVATE void drwav__ieee_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t totalSampleCount, unsigned int bytesPerSample) -{ - if (bytesPerSample == 4) { - drwav_f32_to_s32(pOut, (const float*)pIn, totalSampleCount); - return; - } else if (bytesPerSample == 8) { - drwav_f64_to_s32(pOut, (const double*)pIn, totalSampleCount); - return; - } else { - /* Only supporting 32- and 64-bit float. Output silence in all other cases. Contributions welcome for 16-bit float. */ - DRWAV_ZERO_MEMORY(pOut, totalSampleCount * sizeof(*pOut)); - return; - } -} - - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s32__pcm(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - /* Fast path. */ - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_PCM && pWav->bitsPerSample == 32) { - return drwav_read_pcm_frames(pWav, framesToRead, pBufferOut); - } - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__pcm_to_s32(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s32__msadpcm_ima(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - /* - We're just going to borrow the implementation from the drwav_read_s16() since ADPCM is a little bit more complicated than other formats and I don't - want to duplicate that code. - */ - drwav_uint64 totalFramesRead = 0; - drwav_int16 samples16[2048]; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, drwav_countof(samples16)/pWav->channels); - drwav_uint64 framesRead = drwav_read_pcm_frames_s16(pWav, framesToReadThisIteration, samples16); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - drwav_s16_to_s32(pBufferOut, samples16, (size_t)(framesRead*pWav->channels)); /* <-- Safe cast because we're clamping to 2048. */ - - pBufferOut += framesRead*pWav->channels; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s32__ieee(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav__ieee_to_s32(pBufferOut, sampleData, (size_t)samplesRead, bytesPerSample); - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s32__alaw(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_alaw_to_s32(pBufferOut, sampleData, (size_t)samplesRead); - - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_PRIVATE drwav_uint64 drwav_read_pcm_frames_s32__mulaw(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 totalFramesRead; - drwav_uint8 sampleData[4096] = {0}; - drwav_uint32 bytesPerFrame; - drwav_uint32 bytesPerSample; - drwav_uint64 samplesRead; - - bytesPerFrame = drwav_get_bytes_per_pcm_frame(pWav); - if (bytesPerFrame == 0) { - return 0; - } - - bytesPerSample = bytesPerFrame / pWav->channels; - if (bytesPerSample == 0 || (bytesPerFrame % pWav->channels) != 0) { - return 0; /* Only byte-aligned formats are supported. */ - } - - totalFramesRead = 0; - - while (framesToRead > 0) { - drwav_uint64 framesToReadThisIteration = drwav_min(framesToRead, sizeof(sampleData)/bytesPerFrame); - drwav_uint64 framesRead = drwav_read_pcm_frames(pWav, framesToReadThisIteration, sampleData); - if (framesRead == 0) { - break; - } - - DRWAV_ASSERT(framesRead <= framesToReadThisIteration); /* If this fails it means there's a bug in drwav_read_pcm_frames(). */ - - /* Validation to ensure we don't read too much from out intermediary buffer. This is to protect from invalid files. */ - samplesRead = framesRead * pWav->channels; - if ((samplesRead * bytesPerSample) > sizeof(sampleData)) { - DRWAV_ASSERT(DRWAV_FALSE); /* This should never happen with a valid file. */ - break; - } - - drwav_mulaw_to_s32(pBufferOut, sampleData, (size_t)samplesRead); - - #ifdef DR_WAV_LIBSNDFILE_COMPAT - { - if (pWav->container == drwav_container_aiff) { - drwav_uint64 iSample; - for (iSample = 0; iSample < samplesRead; iSample += 1) { - pBufferOut[iSample] = -pBufferOut[iSample]; - } - } - } - #endif - - pBufferOut += samplesRead; - framesToRead -= framesRead; - totalFramesRead += framesRead; - } - - return totalFramesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - if (pWav == NULL || framesToRead == 0) { - return 0; - } - - if (pBufferOut == NULL) { - return drwav_read_pcm_frames(pWav, framesToRead, NULL); - } - - /* Don't try to read more samples than can potentially fit in the output buffer. */ - if (framesToRead * pWav->channels * sizeof(drwav_int32) > DRWAV_SIZE_MAX) { - framesToRead = DRWAV_SIZE_MAX / sizeof(drwav_int32) / pWav->channels; - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_PCM) { - return drwav_read_pcm_frames_s32__pcm(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ADPCM || pWav->translatedFormatTag == DR_WAVE_FORMAT_DVI_ADPCM) { - return drwav_read_pcm_frames_s32__msadpcm_ima(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_IEEE_FLOAT) { - return drwav_read_pcm_frames_s32__ieee(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_ALAW) { - return drwav_read_pcm_frames_s32__alaw(pWav, framesToRead, pBufferOut); - } - - if (pWav->translatedFormatTag == DR_WAVE_FORMAT_MULAW) { - return drwav_read_pcm_frames_s32__mulaw(pWav, framesToRead, pBufferOut); - } - - return 0; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32le(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_s32(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_FALSE) { - drwav__bswap_samples_s32(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - -DRWAV_API drwav_uint64 drwav_read_pcm_frames_s32be(drwav* pWav, drwav_uint64 framesToRead, drwav_int32* pBufferOut) -{ - drwav_uint64 framesRead = drwav_read_pcm_frames_s32(pWav, framesToRead, pBufferOut); - if (pBufferOut != NULL && drwav__is_little_endian() == DRWAV_TRUE) { - drwav__bswap_samples_s32(pBufferOut, framesRead*pWav->channels); - } - - return framesRead; -} - - -DRWAV_API void drwav_u8_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = ((int)pIn[i] - 128) << 24; - } -} - -DRWAV_API void drwav_s16_to_s32(drwav_int32* pOut, const drwav_int16* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = pIn[i] << 16; - } -} - -DRWAV_API void drwav_s24_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - unsigned int s0 = pIn[i*3 + 0]; - unsigned int s1 = pIn[i*3 + 1]; - unsigned int s2 = pIn[i*3 + 2]; - - drwav_int32 sample32 = (drwav_int32)((s0 << 8) | (s1 << 16) | (s2 << 24)); - *pOut++ = sample32; - } -} - -DRWAV_API void drwav_f32_to_s32(drwav_int32* pOut, const float* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = (drwav_int32)(2147483648.0 * pIn[i]); - } -} - -DRWAV_API void drwav_f64_to_s32(drwav_int32* pOut, const double* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = (drwav_int32)(2147483648.0 * pIn[i]); - } -} - -DRWAV_API void drwav_alaw_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i = 0; i < sampleCount; ++i) { - *pOut++ = ((drwav_int32)drwav__alaw_to_s16(pIn[i])) << 16; - } -} - -DRWAV_API void drwav_mulaw_to_s32(drwav_int32* pOut, const drwav_uint8* pIn, size_t sampleCount) -{ - size_t i; - - if (pOut == NULL || pIn == NULL) { - return; - } - - for (i= 0; i < sampleCount; ++i) { - *pOut++ = ((drwav_int32)drwav__mulaw_to_s16(pIn[i])) << 16; - } -} - - - -DRWAV_PRIVATE drwav_int16* drwav__read_pcm_frames_and_close_s16(drwav* pWav, unsigned int* channels, unsigned int* sampleRate, drwav_uint64* totalFrameCount) -{ - drwav_uint64 sampleDataSize; - drwav_int16* pSampleData; - drwav_uint64 framesRead; - - DRWAV_ASSERT(pWav != NULL); - - sampleDataSize = pWav->totalPCMFrameCount * pWav->channels * sizeof(drwav_int16); - if (sampleDataSize > DRWAV_SIZE_MAX) { - drwav_uninit(pWav); - return NULL; /* File's too big. */ - } - - pSampleData = (drwav_int16*)drwav__malloc_from_callbacks((size_t)sampleDataSize, &pWav->allocationCallbacks); /* <-- Safe cast due to the check above. */ - if (pSampleData == NULL) { - drwav_uninit(pWav); - return NULL; /* Failed to allocate memory. */ - } - - framesRead = drwav_read_pcm_frames_s16(pWav, (size_t)pWav->totalPCMFrameCount, pSampleData); - if (framesRead != pWav->totalPCMFrameCount) { - drwav__free_from_callbacks(pSampleData, &pWav->allocationCallbacks); - drwav_uninit(pWav); - return NULL; /* There was an error reading the samples. */ - } - - drwav_uninit(pWav); - - if (sampleRate) { - *sampleRate = pWav->sampleRate; - } - if (channels) { - *channels = pWav->channels; - } - if (totalFrameCount) { - *totalFrameCount = pWav->totalPCMFrameCount; - } - - return pSampleData; -} - -DRWAV_PRIVATE float* drwav__read_pcm_frames_and_close_f32(drwav* pWav, unsigned int* channels, unsigned int* sampleRate, drwav_uint64* totalFrameCount) -{ - drwav_uint64 sampleDataSize; - float* pSampleData; - drwav_uint64 framesRead; - - DRWAV_ASSERT(pWav != NULL); - - sampleDataSize = pWav->totalPCMFrameCount * pWav->channels * sizeof(float); - if (sampleDataSize > DRWAV_SIZE_MAX) { - drwav_uninit(pWav); - return NULL; /* File's too big. */ - } - - pSampleData = (float*)drwav__malloc_from_callbacks((size_t)sampleDataSize, &pWav->allocationCallbacks); /* <-- Safe cast due to the check above. */ - if (pSampleData == NULL) { - drwav_uninit(pWav); - return NULL; /* Failed to allocate memory. */ - } - - framesRead = drwav_read_pcm_frames_f32(pWav, (size_t)pWav->totalPCMFrameCount, pSampleData); - if (framesRead != pWav->totalPCMFrameCount) { - drwav__free_from_callbacks(pSampleData, &pWav->allocationCallbacks); - drwav_uninit(pWav); - return NULL; /* There was an error reading the samples. */ - } - - drwav_uninit(pWav); - - if (sampleRate) { - *sampleRate = pWav->sampleRate; - } - if (channels) { - *channels = pWav->channels; - } - if (totalFrameCount) { - *totalFrameCount = pWav->totalPCMFrameCount; - } - - return pSampleData; -} - -DRWAV_PRIVATE drwav_int32* drwav__read_pcm_frames_and_close_s32(drwav* pWav, unsigned int* channels, unsigned int* sampleRate, drwav_uint64* totalFrameCount) -{ - drwav_uint64 sampleDataSize; - drwav_int32* pSampleData; - drwav_uint64 framesRead; - - DRWAV_ASSERT(pWav != NULL); - - sampleDataSize = pWav->totalPCMFrameCount * pWav->channels * sizeof(drwav_int32); - if (sampleDataSize > DRWAV_SIZE_MAX) { - drwav_uninit(pWav); - return NULL; /* File's too big. */ - } - - pSampleData = (drwav_int32*)drwav__malloc_from_callbacks((size_t)sampleDataSize, &pWav->allocationCallbacks); /* <-- Safe cast due to the check above. */ - if (pSampleData == NULL) { - drwav_uninit(pWav); - return NULL; /* Failed to allocate memory. */ - } - - framesRead = drwav_read_pcm_frames_s32(pWav, (size_t)pWav->totalPCMFrameCount, pSampleData); - if (framesRead != pWav->totalPCMFrameCount) { - drwav__free_from_callbacks(pSampleData, &pWav->allocationCallbacks); - drwav_uninit(pWav); - return NULL; /* There was an error reading the samples. */ - } - - drwav_uninit(pWav); - - if (sampleRate) { - *sampleRate = pWav->sampleRate; - } - if (channels) { - *channels = pWav->channels; - } - if (totalFrameCount) { - *totalFrameCount = pWav->totalPCMFrameCount; - } - - return pSampleData; -} - - - -DRWAV_API drwav_int16* drwav_open_and_read_pcm_frames_s16(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init(&wav, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s16(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API float* drwav_open_and_read_pcm_frames_f32(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init(&wav, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_f32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API drwav_int32* drwav_open_and_read_pcm_frames_s32(drwav_read_proc onRead, drwav_seek_proc onSeek, void* pUserData, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init(&wav, onRead, onSeek, pUserData, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -#ifndef DR_WAV_NO_STDIO -DRWAV_API drwav_int16* drwav_open_file_and_read_pcm_frames_s16(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s16(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API float* drwav_open_file_and_read_pcm_frames_f32(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_f32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API drwav_int32* drwav_open_file_and_read_pcm_frames_s32(const char* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - - -#ifndef DR_WAV_NO_WCHAR -DRWAV_API drwav_int16* drwav_open_file_and_read_pcm_frames_s16_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (channelsOut) { - *channelsOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file_w(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s16(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API float* drwav_open_file_and_read_pcm_frames_f32_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (channelsOut) { - *channelsOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file_w(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_f32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API drwav_int32* drwav_open_file_and_read_pcm_frames_s32_w(const wchar_t* filename, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (channelsOut) { - *channelsOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_file_w(&wav, filename, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} -#endif /* DR_WAV_NO_WCHAR */ -#endif /* DR_WAV_NO_STDIO */ - -DRWAV_API drwav_int16* drwav_open_memory_and_read_pcm_frames_s16(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_memory(&wav, data, dataSize, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s16(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API float* drwav_open_memory_and_read_pcm_frames_f32(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_memory(&wav, data, dataSize, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_f32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} - -DRWAV_API drwav_int32* drwav_open_memory_and_read_pcm_frames_s32(const void* data, size_t dataSize, unsigned int* channelsOut, unsigned int* sampleRateOut, drwav_uint64* totalFrameCountOut, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - drwav wav; - - if (channelsOut) { - *channelsOut = 0; - } - if (sampleRateOut) { - *sampleRateOut = 0; - } - if (totalFrameCountOut) { - *totalFrameCountOut = 0; - } - - if (!drwav_init_memory(&wav, data, dataSize, pAllocationCallbacks)) { - return NULL; - } - - return drwav__read_pcm_frames_and_close_s32(&wav, channelsOut, sampleRateOut, totalFrameCountOut); -} -#endif /* DR_WAV_NO_CONVERSION_API */ - - -DRWAV_API void drwav_free(void* p, const drwav_allocation_callbacks* pAllocationCallbacks) -{ - if (pAllocationCallbacks != NULL) { - drwav__free_from_callbacks(p, pAllocationCallbacks); - } else { - drwav__free_default(p, NULL); - } -} - -DRWAV_API drwav_uint16 drwav_bytes_to_u16(const drwav_uint8* data) -{ - return ((drwav_uint16)data[0] << 0) | ((drwav_uint16)data[1] << 8); -} - -DRWAV_API drwav_int16 drwav_bytes_to_s16(const drwav_uint8* data) -{ - return (drwav_int16)drwav_bytes_to_u16(data); -} - -DRWAV_API drwav_uint32 drwav_bytes_to_u32(const drwav_uint8* data) -{ - return drwav_bytes_to_u32_le(data); -} - -DRWAV_API float drwav_bytes_to_f32(const drwav_uint8* data) -{ - union { - drwav_uint32 u32; - float f32; - } value; - - value.u32 = drwav_bytes_to_u32(data); - return value.f32; -} - -DRWAV_API drwav_int32 drwav_bytes_to_s32(const drwav_uint8* data) -{ - return (drwav_int32)drwav_bytes_to_u32(data); -} - -DRWAV_API drwav_uint64 drwav_bytes_to_u64(const drwav_uint8* data) -{ - return - ((drwav_uint64)data[0] << 0) | ((drwav_uint64)data[1] << 8) | ((drwav_uint64)data[2] << 16) | ((drwav_uint64)data[3] << 24) | - ((drwav_uint64)data[4] << 32) | ((drwav_uint64)data[5] << 40) | ((drwav_uint64)data[6] << 48) | ((drwav_uint64)data[7] << 56); -} - -DRWAV_API drwav_int64 drwav_bytes_to_s64(const drwav_uint8* data) -{ - return (drwav_int64)drwav_bytes_to_u64(data); -} - - -DRWAV_API drwav_bool32 drwav_guid_equal(const drwav_uint8 a[16], const drwav_uint8 b[16]) -{ - int i; - for (i = 0; i < 16; i += 1) { - if (a[i] != b[i]) { - return DRWAV_FALSE; - } - } - - return DRWAV_TRUE; -} - -DRWAV_API drwav_bool32 drwav_fourcc_equal(const drwav_uint8* a, const char* b) -{ - return - a[0] == b[0] && - a[1] == b[1] && - a[2] == b[2] && - a[3] == b[3]; -} - -#ifdef __MRC__ -/* Undo the pragma at the beginning of this file. */ -#pragma options opt reset -#endif - -#endif /* dr_wav_c */ -#endif /* DR_WAV_IMPLEMENTATION */ - -/* -REVISION HISTORY -================ -v0.13.15 - 2024-01-23 - - Relax some unnecessary validation that prevented some files from loading. - -v0.13.14 - 2023-12-02 - - Fix a warning about an unused variable. - -v0.13.13 - 2023-11-02 - - Fix a warning when compiling with Clang. - -v0.13.12 - 2023-08-07 - - Fix a possible crash in drwav_read_pcm_frames(). - -v0.13.11 - 2023-07-07 - - AIFF compatibility improvements. - -v0.13.10 - 2023-05-29 - - Fix a bug where drwav_init_with_metadata() does not decode any frames after initializtion. - -v0.13.9 - 2023-05-22 - - Add support for AIFF decoding (writing and metadata not supported). - - Add support for RIFX decoding (writing and metadata not supported). - - Fix a bug where metadata is not processed if it's located before the "fmt " chunk. - - Add a workaround for a type of malformed WAV file where the size of the "RIFF" and "data" chunks - are incorrectly set to 0xFFFFFFFF. - -v0.13.8 - 2023-03-25 - - Fix a possible null pointer dereference. - - Fix a crash when loading files with badly formed metadata. - -v0.13.7 - 2022-09-17 - - Fix compilation with DJGPP. - - Add support for disabling wchar_t with DR_WAV_NO_WCHAR. - -v0.13.6 - 2022-04-10 - - Fix compilation error on older versions of GCC. - - Remove some dependencies on the standard library. - -v0.13.5 - 2022-01-26 - - Fix an error when seeking to the end of the file. - -v0.13.4 - 2021-12-08 - - Fix some static analysis warnings. - -v0.13.3 - 2021-11-24 - - Fix an incorrect assertion when trying to endian swap 1-byte sample formats. This is now a no-op - rather than a failed assertion. - - Fix a bug with parsing of the bext chunk. - - Fix some static analysis warnings. - -v0.13.2 - 2021-10-02 - - Fix a possible buffer overflow when reading from compressed formats. - -v0.13.1 - 2021-07-31 - - Fix platform detection for ARM64. - -v0.13.0 - 2021-07-01 - - Improve support for reading and writing metadata. Use the `_with_metadata()` APIs to initialize - a WAV decoder and store the metadata within the `drwav` object. Use the `pMetadata` and - `metadataCount` members of the `drwav` object to read the data. The old way of handling metadata - via a callback is still usable and valid. - - API CHANGE: drwav_target_write_size_bytes() now takes extra parameters for calculating the - required write size when writing metadata. - - Add drwav_get_cursor_in_pcm_frames() - - Add drwav_get_length_in_pcm_frames() - - Fix a bug where drwav_read_raw() can call the read callback with a byte count of zero. - -v0.12.20 - 2021-06-11 - - Fix some undefined behavior. - -v0.12.19 - 2021-02-21 - - Fix a warning due to referencing _MSC_VER when it is undefined. - - Minor improvements to the management of some internal state concerning the data chunk cursor. - -v0.12.18 - 2021-01-31 - - Clean up some static analysis warnings. - -v0.12.17 - 2021-01-17 - - Minor fix to sample code in documentation. - - Correctly qualify a private API as private rather than public. - - Code cleanup. - -v0.12.16 - 2020-12-02 - - Fix a bug when trying to read more bytes than can fit in a size_t. - -v0.12.15 - 2020-11-21 - - Fix compilation with OpenWatcom. - -v0.12.14 - 2020-11-13 - - Minor code clean up. - -v0.12.13 - 2020-11-01 - - Improve compiler support for older versions of GCC. - -v0.12.12 - 2020-09-28 - - Add support for RF64. - - Fix a bug in writing mode where the size of the RIFF chunk incorrectly includes the header section. - -v0.12.11 - 2020-09-08 - - Fix a compilation error on older compilers. - -v0.12.10 - 2020-08-24 - - Fix a bug when seeking with ADPCM formats. - -v0.12.9 - 2020-08-02 - - Simplify sized types. - -v0.12.8 - 2020-07-25 - - Fix a compilation warning. - -v0.12.7 - 2020-07-15 - - Fix some bugs on big-endian architectures. - - Fix an error in s24 to f32 conversion. - -v0.12.6 - 2020-06-23 - - Change drwav_read_*() to allow NULL to be passed in as the output buffer which is equivalent to a forward seek. - - Fix a buffer overflow when trying to decode invalid IMA-ADPCM files. - - Add include guard for the implementation section. - -v0.12.5 - 2020-05-27 - - Minor documentation fix. - -v0.12.4 - 2020-05-16 - - Replace assert() with DRWAV_ASSERT(). - - Add compile-time and run-time version querying. - - DRWAV_VERSION_MINOR - - DRWAV_VERSION_MAJOR - - DRWAV_VERSION_REVISION - - DRWAV_VERSION_STRING - - drwav_version() - - drwav_version_string() - -v0.12.3 - 2020-04-30 - - Fix compilation errors with VC6. - -v0.12.2 - 2020-04-21 - - Fix a bug where drwav_init_file() does not close the file handle after attempting to load an erroneous file. - -v0.12.1 - 2020-04-13 - - Fix some pedantic warnings. - -v0.12.0 - 2020-04-04 - - API CHANGE: Add container and format parameters to the chunk callback. - - Minor documentation updates. - -v0.11.5 - 2020-03-07 - - Fix compilation error with Visual Studio .NET 2003. - -v0.11.4 - 2020-01-29 - - Fix some static analysis warnings. - - Fix a bug when reading f32 samples from an A-law encoded stream. - -v0.11.3 - 2020-01-12 - - Minor changes to some f32 format conversion routines. - - Minor bug fix for ADPCM conversion when end of file is reached. - -v0.11.2 - 2019-12-02 - - Fix a possible crash when using custom memory allocators without a custom realloc() implementation. - - Fix an integer overflow bug. - - Fix a null pointer dereference bug. - - Add limits to sample rate, channels and bits per sample to tighten up some validation. - -v0.11.1 - 2019-10-07 - - Internal code clean up. - -v0.11.0 - 2019-10-06 - - API CHANGE: Add support for user defined memory allocation routines. This system allows the program to specify their own memory allocation - routines with a user data pointer for client-specific contextual data. This adds an extra parameter to the end of the following APIs: - - drwav_init() - - drwav_init_ex() - - drwav_init_file() - - drwav_init_file_ex() - - drwav_init_file_w() - - drwav_init_file_w_ex() - - drwav_init_memory() - - drwav_init_memory_ex() - - drwav_init_write() - - drwav_init_write_sequential() - - drwav_init_write_sequential_pcm_frames() - - drwav_init_file_write() - - drwav_init_file_write_sequential() - - drwav_init_file_write_sequential_pcm_frames() - - drwav_init_file_write_w() - - drwav_init_file_write_sequential_w() - - drwav_init_file_write_sequential_pcm_frames_w() - - drwav_init_memory_write() - - drwav_init_memory_write_sequential() - - drwav_init_memory_write_sequential_pcm_frames() - - drwav_open_and_read_pcm_frames_s16() - - drwav_open_and_read_pcm_frames_f32() - - drwav_open_and_read_pcm_frames_s32() - - drwav_open_file_and_read_pcm_frames_s16() - - drwav_open_file_and_read_pcm_frames_f32() - - drwav_open_file_and_read_pcm_frames_s32() - - drwav_open_file_and_read_pcm_frames_s16_w() - - drwav_open_file_and_read_pcm_frames_f32_w() - - drwav_open_file_and_read_pcm_frames_s32_w() - - drwav_open_memory_and_read_pcm_frames_s16() - - drwav_open_memory_and_read_pcm_frames_f32() - - drwav_open_memory_and_read_pcm_frames_s32() - Set this extra parameter to NULL to use defaults which is the same as the previous behaviour. Setting this NULL will use - DRWAV_MALLOC, DRWAV_REALLOC and DRWAV_FREE. - - Add support for reading and writing PCM frames in an explicit endianness. New APIs: - - drwav_read_pcm_frames_le() - - drwav_read_pcm_frames_be() - - drwav_read_pcm_frames_s16le() - - drwav_read_pcm_frames_s16be() - - drwav_read_pcm_frames_f32le() - - drwav_read_pcm_frames_f32be() - - drwav_read_pcm_frames_s32le() - - drwav_read_pcm_frames_s32be() - - drwav_write_pcm_frames_le() - - drwav_write_pcm_frames_be() - - Remove deprecated APIs. - - API CHANGE: The following APIs now return native-endian data. Previously they returned little-endian data. - - drwav_read_pcm_frames() - - drwav_read_pcm_frames_s16() - - drwav_read_pcm_frames_s32() - - drwav_read_pcm_frames_f32() - - drwav_open_and_read_pcm_frames_s16() - - drwav_open_and_read_pcm_frames_s32() - - drwav_open_and_read_pcm_frames_f32() - - drwav_open_file_and_read_pcm_frames_s16() - - drwav_open_file_and_read_pcm_frames_s32() - - drwav_open_file_and_read_pcm_frames_f32() - - drwav_open_file_and_read_pcm_frames_s16_w() - - drwav_open_file_and_read_pcm_frames_s32_w() - - drwav_open_file_and_read_pcm_frames_f32_w() - - drwav_open_memory_and_read_pcm_frames_s16() - - drwav_open_memory_and_read_pcm_frames_s32() - - drwav_open_memory_and_read_pcm_frames_f32() - -v0.10.1 - 2019-08-31 - - Correctly handle partial trailing ADPCM blocks. - -v0.10.0 - 2019-08-04 - - Remove deprecated APIs. - - Add wchar_t variants for file loading APIs: - drwav_init_file_w() - drwav_init_file_ex_w() - drwav_init_file_write_w() - drwav_init_file_write_sequential_w() - - Add drwav_target_write_size_bytes() which calculates the total size in bytes of a WAV file given a format and sample count. - - Add APIs for specifying the PCM frame count instead of the sample count when opening in sequential write mode: - drwav_init_write_sequential_pcm_frames() - drwav_init_file_write_sequential_pcm_frames() - drwav_init_file_write_sequential_pcm_frames_w() - drwav_init_memory_write_sequential_pcm_frames() - - Deprecate drwav_open*() and drwav_close(): - drwav_open() - drwav_open_ex() - drwav_open_write() - drwav_open_write_sequential() - drwav_open_file() - drwav_open_file_ex() - drwav_open_file_write() - drwav_open_file_write_sequential() - drwav_open_memory() - drwav_open_memory_ex() - drwav_open_memory_write() - drwav_open_memory_write_sequential() - drwav_close() - - Minor documentation updates. - -v0.9.2 - 2019-05-21 - - Fix warnings. - -v0.9.1 - 2019-05-05 - - Add support for C89. - - Change license to choice of public domain or MIT-0. - -v0.9.0 - 2018-12-16 - - API CHANGE: Add new reading APIs for reading by PCM frames instead of samples. Old APIs have been deprecated and - will be removed in v0.10.0. Deprecated APIs and their replacements: - drwav_read() -> drwav_read_pcm_frames() - drwav_read_s16() -> drwav_read_pcm_frames_s16() - drwav_read_f32() -> drwav_read_pcm_frames_f32() - drwav_read_s32() -> drwav_read_pcm_frames_s32() - drwav_seek_to_sample() -> drwav_seek_to_pcm_frame() - drwav_write() -> drwav_write_pcm_frames() - drwav_open_and_read_s16() -> drwav_open_and_read_pcm_frames_s16() - drwav_open_and_read_f32() -> drwav_open_and_read_pcm_frames_f32() - drwav_open_and_read_s32() -> drwav_open_and_read_pcm_frames_s32() - drwav_open_file_and_read_s16() -> drwav_open_file_and_read_pcm_frames_s16() - drwav_open_file_and_read_f32() -> drwav_open_file_and_read_pcm_frames_f32() - drwav_open_file_and_read_s32() -> drwav_open_file_and_read_pcm_frames_s32() - drwav_open_memory_and_read_s16() -> drwav_open_memory_and_read_pcm_frames_s16() - drwav_open_memory_and_read_f32() -> drwav_open_memory_and_read_pcm_frames_f32() - drwav_open_memory_and_read_s32() -> drwav_open_memory_and_read_pcm_frames_s32() - drwav::totalSampleCount -> drwav::totalPCMFrameCount - - API CHANGE: Rename drwav_open_and_read_file_*() to drwav_open_file_and_read_*(). - - API CHANGE: Rename drwav_open_and_read_memory_*() to drwav_open_memory_and_read_*(). - - Add built-in support for smpl chunks. - - Add support for firing a callback for each chunk in the file at initialization time. - - This is enabled through the drwav_init_ex(), etc. family of APIs. - - Handle invalid FMT chunks more robustly. - -v0.8.5 - 2018-09-11 - - Const correctness. - - Fix a potential stack overflow. - -v0.8.4 - 2018-08-07 - - Improve 64-bit detection. - -v0.8.3 - 2018-08-05 - - Fix C++ build on older versions of GCC. - -v0.8.2 - 2018-08-02 - - Fix some big-endian bugs. - -v0.8.1 - 2018-06-29 - - Add support for sequential writing APIs. - - Disable seeking in write mode. - - Fix bugs with Wave64. - - Fix typos. - -v0.8 - 2018-04-27 - - Bug fix. - - Start using major.minor.revision versioning. - -v0.7f - 2018-02-05 - - Restrict ADPCM formats to a maximum of 2 channels. - -v0.7e - 2018-02-02 - - Fix a crash. - -v0.7d - 2018-02-01 - - Fix a crash. - -v0.7c - 2018-02-01 - - Set drwav.bytesPerSample to 0 for all compressed formats. - - Fix a crash when reading 16-bit floating point WAV files. In this case dr_wav will output silence for - all format conversion reading APIs (*_s16, *_s32, *_f32 APIs). - - Fix some divide-by-zero errors. - -v0.7b - 2018-01-22 - - Fix errors with seeking of compressed formats. - - Fix compilation error when DR_WAV_NO_CONVERSION_API - -v0.7a - 2017-11-17 - - Fix some GCC warnings. - -v0.7 - 2017-11-04 - - Add writing APIs. - -v0.6 - 2017-08-16 - - API CHANGE: Rename dr_* types to drwav_*. - - Add support for custom implementations of malloc(), realloc(), etc. - - Add support for Microsoft ADPCM. - - Add support for IMA ADPCM (DVI, format code 0x11). - - Optimizations to drwav_read_s16(). - - Bug fixes. - -v0.5g - 2017-07-16 - - Change underlying type for booleans to unsigned. - -v0.5f - 2017-04-04 - - Fix a minor bug with drwav_open_and_read_s16() and family. - -v0.5e - 2016-12-29 - - Added support for reading samples as signed 16-bit integers. Use the _s16() family of APIs for this. - - Minor fixes to documentation. - -v0.5d - 2016-12-28 - - Use drwav_int* and drwav_uint* sized types to improve compiler support. - -v0.5c - 2016-11-11 - - Properly handle JUNK chunks that come before the FMT chunk. - -v0.5b - 2016-10-23 - - A minor change to drwav_bool8 and drwav_bool32 types. - -v0.5a - 2016-10-11 - - Fixed a bug with drwav_open_and_read() and family due to incorrect argument ordering. - - Improve A-law and mu-law efficiency. - -v0.5 - 2016-09-29 - - API CHANGE. Swap the order of "channels" and "sampleRate" parameters in drwav_open_and_read*(). Rationale for this is to - keep it consistent with dr_audio and dr_flac. - -v0.4b - 2016-09-18 - - Fixed a typo in documentation. - -v0.4a - 2016-09-18 - - Fixed a typo. - - Change date format to ISO 8601 (YYYY-MM-DD) - -v0.4 - 2016-07-13 - - API CHANGE. Make onSeek consistent with dr_flac. - - API CHANGE. Rename drwav_seek() to drwav_seek_to_sample() for clarity and consistency with dr_flac. - - Added support for Sony Wave64. - -v0.3a - 2016-05-28 - - API CHANGE. Return drwav_bool32 instead of int in onSeek callback. - - Fixed a memory leak. - -v0.3 - 2016-05-22 - - Lots of API changes for consistency. - -v0.2a - 2016-05-16 - - Fixed Linux/GCC build. - -v0.2 - 2016-05-11 - - Added support for reading data as signed 32-bit PCM for consistency with dr_flac. - -v0.1a - 2016-05-07 - - Fixed a bug in drwav_open_file() where the file handle would not be closed if the loader failed to initialize. - -v0.1 - 2016-05-04 - - Initial versioned release. -*/ - -/* -This software is available as a choice of the following licenses. Choose -whichever you prefer. - -=============================================================================== -ALTERNATIVE 1 - Public Domain (www.unlicense.org) -=============================================================================== -This is free and unencumbered software released into the public domain. - -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. - -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -For more information, please refer to <http://unlicense.org/> - -=============================================================================== -ALTERNATIVE 2 - MIT No Attribution -=============================================================================== -Copyright 2023 David Reid - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ |