###### (This function is part of SDL_mixer, a separate library from SDL.) # MIX_GetTrackAudioStream Query the SDL_AudioStream assigned to a track. ## Header File Defined in [](https://github.com/libsdl-org/SDL_mixer/blob/main/include/SDL3_mixer/SDL_mixer.h) ## Syntax ```c SDL_AudioStream * MIX_GetTrackAudioStream(MIX_Track *track); ``` ## Function Parameters | | | | | ------------------------ | --------- | ------------------- | | [MIX_Track](MIX_Track) * | **track** | the track to query. | ## Return Value (SDL_AudioStream *) Returns an SDL_AudioStream if available, NULL if not. ## Remarks This returns the SDL_AudioStream object currently assigned to `track` through a call to [MIX_SetTrackAudioStream](MIX_SetTrackAudioStream)(). If there is none assigned, or the track has an input that isn't an SDL_AudioStream (such as a [MIX_Audio](MIX_Audio) or SDL_IOStream), this will return NULL. On various errors ([MIX_Init](MIX_Init)() was not called, the track is NULL), this returns NULL, but there is no mechanism to distinguish errors from tracks without a valid input. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL_mixer 3.0.0. ## See Also - [MIX_GetTrackAudio](MIX_GetTrackAudio) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySDLMixer](CategorySDLMixer)