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Add SDL_ConvertAudioSamples() helper function

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Sylvain
2023-01-23 08:24:49 +01:00
committed by Sam Lantinga
parent 7b50bae524
commit 052b14eb65
8 changed files with 124 additions and 57 deletions
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31
include/SDL3/SDL_audio.h
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@@ -1113,6 +1113,37 @@ extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
*/
extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
/**
* Convert some audio data of one format to another format.
*
* \param src_format The format of the source audio
* \param src_channels The number of channels of the source audio
* \param src_rate The sampling rate of the source audio
* \param src_len The len of src_data
* \param src_data The audio data to be converted
* \param dst_format The format of the desired audio output
* \param dst_channels The number of channels of the desired audio output
* \param dst_rate The sampling rate of the desired audio output
* \param dst_len Will be filled with the len of dst_data
* \param dst_data Will be filled with a pointer to converted audio data, which should be freed with SDL_free().
*
* \returns 0 on success or a negative error code on failure. On error, *dst_data will be NULL and so not allocated.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_CreateAudioStream
*/
extern DECLSPEC int SDLCALL SDL_ConvertAudioSamples(SDL_AudioFormat src_format,
Uint8 src_channels,
int src_rate,
int src_len,
Uint8 *src_data,
SDL_AudioFormat dst_format,
Uint8 dst_channels,
int dst_rate,
int *dst_len,
Uint8 **dst_data);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}