#include <mmplayer/mmplayerclient.h> int mm_player_previous( mmplayer_hdl_t *hdl )
Skip to the previous track. The track considered as the "previous track" depends on the shuffle and repeat mode settings.
When the repeat mode is REPEAT_ONE, the previous track is always the current track (because it's set to repeat continuously).
When the repeat mode is REPEAT_ALL, the previous track is the track immediately preceeding the current track in either the sequential playback list (if shuffling is off) or in the randomized list (if shuffling is on). If the current track is the first track in the list, the previous track is the last track in the list (because playback is looped).
When the repeat mode is REPEAT_OFF, the previous track is selected in a similar manner based on the shuffle mode, except if the current track is the first track in the list, in which case playback stops because there is no previous track.
0 on success, -1 on failure