The reason for the change of the music file playback state.
723: The music file completes all loop playback.
701: The SDK cannot open the music file. Possible causes include the local music file does not exist, the SDK does not support the file format, or the SDK cannot access the music file URL.
703: The music file playback is interrupted.
0: No error.
721: The music file completes a loop playback.
725: Successfully calls
pauseAudioMixing to pause playing the music file.
726: Successfully calls
resumeAudioMixing to resume playing the music file.
722: The music file starts a new loop playback.
720: Successfully calls
startAudioMixing to play a music file.
724: Successfully calls
stopAudioMixing to stop playing the music file.
702: The SDK opens the music file too frequently. If you need to call
startAudioMixing multiple times, ensure that the call interval is longer than 500 ms.