from main.h:71
enum
{
AUDIO_STATE_IDLE = 0,
AUDIO_STATE_WAIT,
AUDIO_STATE_INIT,
AUDIO_STATE_PLAY,
AUDIO_STATE_RECORD,
AUDIO_STATE_NEXT,
AUDIO_STATE_PREVIOUS,
AUDIO_STATE_FORWARD,
AUDIO_STATE_BACKWARD,
AUDIO_STATE_STOP,
AUDIO_STATE_PAUSE,
AUDIO_STATE_RESUME,
AUDIO_STATE_VOLUME_UP,
AUDIO_STATE_VOLUME_DOWN,
AUDIO_STATE_ERROR,
};