NAME¶

SDL_GetAudioStreamData - Get converted/resampled data from the stream.

SYNOPSIS¶

#include "SDL3/SDL.h"

int SDL_GetAudioStreamData(SDL_AudioStream *stream, void *buf, int len);

DESCRIPTION¶

The input/output data format/channels/samplerate is specified when creating the stream, and can be changed after creation by calling

SDL_SetAudioStreamFormat .

Note that any conversion and resampling necessary is done during this call, and SDL_PutAudioStreamData
simply queues unconverted data for later. This is different than SDL2, where that work was done while inputting new data to the stream and requesting the output just copied the converted data.

FUNCTION PARAMETERS¶

stream

The stream the audio is being requested from

buf

A buffer to fill with audio data

len

The maximum number of bytes to fill

RETURN VALUE¶

Returns the number of bytes read from the stream, or -1 on error

THREAD SAFETY¶

It is safe to call this function from any thread, but if the stream has a callback set, the caller might need to manage extra locking.

AVAILABILITY¶

This function is available since SDL 3.0.0.

SEE ALSO¶

SDL_ClearAudioStream(3), SDL_GetAudioStreamAvailable(3), SDL_PutAudioStreamData(3)