mixGetTrackFrequencyRatio function mixer

double mixGetTrackFrequencyRatio(Pointer<MixTrack> track)

Query the frequency ratio of a track.

The frequency ratio is used to adjust the rate at which audio data is consumed. Changing this effectively modifies the speed and pitch of the track's audio. A value greater than 1.0f will play the audio faster, and at a higher pitch. A value less than 1.0f will play the audio slower, and at a lower pitch. 1.0f is normal speed.

The default value is 1.0f.

On various errors (MIX_Init() was not called, the track is NULL), this returns 0.0f. Since this is not a valid value to set, this can be seen as an error state.

\param track the track on which to query the frequency ratio. \returns the current frequency ratio, or 0.0f on failure; call SDL_GetError() for more information.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL_mixer 3.0.0.

\sa MIX_GetTrackFrequencyRatio

extern SDL_DECLSPEC float SDLCALL MIX_GetTrackFrequencyRatio(MIX_Track *track)

Implementation

double mixGetTrackFrequencyRatio(Pointer<MixTrack> track) {
  final mixGetTrackFrequencyRatioLookupFunction = _libMixer
      .lookupFunction<
        Float Function(Pointer<MixTrack> track),
        double Function(Pointer<MixTrack> track)
      >('MIX_GetTrackFrequencyRatio');
  return mixGetTrackFrequencyRatioLookupFunction(track);
}