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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_ConvertAudioSamples

Convert some audio data of one format to another format.

Syntax

int SDL_ConvertAudioSamples(SDL_AudioFormat src_format,
                            Uint8 src_channels,
                            int src_rate,
                            const Uint8 *src_data,
                            int src_len,
                            SDL_AudioFormat dst_format,
                            Uint8 dst_channels,
                            int dst_rate,
                            Uint8 **dst_data,
                            int *dst_len);

Function Parameters

src_format The format of the source audio
src_channels The number of channels of the source audio
src_rate The sampling rate of the source audio
src_data The audio data to be converted
src_len The len of src_data
dst_format The format of the desired audio output
dst_channels The number of channels of the desired audio output
dst_rate The sampling rate of the desired audio output
dst_data Will be filled with a pointer to converted audio data, which should be freed with SDL_free(). On error, it will be NULL.
dst_len Will be filled with the len of dst_data

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Version

This function is available since SDL 3.0.0.

CategoryAPI

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