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SDL Wiki

SDL_ClearQueuedAudio

Drop any queued audio data waiting to be sent to the hardware.

Syntax

void SDL_ClearQueuedAudio(SDL_AudioDeviceID dev);

Function Parameters

dev

the device ID of which to clear the audio queue

Remarks

Immediately after this call, SDL_GetQueuedAudioSize() will return 0. For output devices, the hardware will start playing silence if more audio isn't queued. For capture devices, the hardware will start filling the empty queue with new data if the capture device isn't paused.

This will not prevent playback of queued audio that's already been sent to the hardware, as we can not undo that, so expect there to be some fraction of a second of audio that might still be heard. This can be useful if you want to, say, drop any pending music or any unprocessed microphone input during a level change in your game.

You may not queue or dequeue audio on a device that is using an application-supplied callback; calling this function on such a device always returns 0. You have to use the audio callback or queue audio, but not both.

You should not call SDL_LockAudio() on the device before clearing the queue; SDL handles locking internally for this function.

This function always succeeds and thus returns void.

Version

This function is available since SDL 2.0.4.

SDL_GetQueuedAudioSize
SDL_QueueAudio
SDL_DequeueAudio

CategoryAPI, CategoryAudio


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