libvlc: add new API to set AB loop explicitly

Adds:

 - libvlc_media_player_set_abloop_time
 - libvlc_media_player_set_abloop_position
 - libvlc_media_player_reset_abloop

These new methods allow to set a specific start and end time or
position to setup an AB loop, and a way to remove the loop.

There must be an active input before setting the AB loop.

include/vlc/libvlc_media_player.h

@@ -1335,6 +1335,48 @@ LIBVLC_API int
 libvlc_media_player_set_abloop( libvlc_media_player_t *p_mi,
                                 libvlc_abloop_t abloop );
 
+/**
+ * Enable A to B loop for the current media by setting the start time and end
+ * time
+ *
+ * The B time must be higher than the A time.
+ *
+ * \param p_mi the Media Player
+ * \param a_time start time for the loop (in ms)
+ * \param b_time end time for the loop (in ms)
+ * \return 0 on success, -1 on error
+ * \version LibVLC 4.0.0 and later.
+ */
+LIBVLC_API int
+libvlc_media_player_set_abloop_time( libvlc_media_player_t *p_mi,
+                                     libvlc_time_t a_time, libvlc_time_t b_time );
+
+/**
+ * Enable A to B loop for the current media by setting the start position and
+ * end position
+ *
+ * The B position must be higher than the A position.
+ *
+ * \param p_mi the Media Player
+ * \param a_pos start position for the loop
+ * \param b_pos end position for the loop
+ * \return 0 on success, -1 on error
+ * \version LibVLC 4.0.0 and later.
+ */
+LIBVLC_API int
+libvlc_media_player_set_abloop_position( libvlc_media_player_t *p_mi,
+                                         double a_pos, double b_pos );
+
+/**
+ * Reset/remove the A to B loop for the current media
+ *
+ * \param p_mi the Media Player
+ * \return 0 on success, -1 on error
+ * \version LibVLC 4.0.0 and later.
+ */
+LIBVLC_API int
+libvlc_media_player_reset_abloop( libvlc_media_player_t *p_mi );
+
 /**
  * Get the A to B loop status
  *

lib/libvlc.sym

@@ -188,6 +188,9 @@ libvlc_media_player_unselect_track_type
 libvlc_media_player_select_tracks
 libvlc_media_player_select_tracks_by_ids
 libvlc_media_player_set_abloop
+libvlc_media_player_set_abloop_time
+libvlc_media_player_set_abloop_position
+libvlc_media_player_reset_abloop
 libvlc_media_player_get_abloop
 libvlc_player_program_delete
 libvlc_player_programlist_count

lib/media_player.c

@@ -1415,6 +1415,52 @@ libvlc_media_player_set_abloop( libvlc_media_player_t *p_mi,
     return ret;
 }
 
+int
+libvlc_media_player_set_abloop_time( libvlc_media_player_t *p_mi,
+                                     libvlc_time_t a_time, libvlc_time_t b_time )
+{
+    vlc_tick_t a_tick = vlc_tick_from_libvlc_time(a_time);
+    if (a_tick >= 0)
+        a_tick += VLC_TICK_0;
+
+    vlc_tick_t b_tick = vlc_tick_from_libvlc_time(b_time);
+    if (b_tick >= 0)
+        b_tick += VLC_TICK_0;
+
+    vlc_player_t *player = p_mi->player;
+    vlc_player_Lock(player);
+
+    int ret = vlc_player_SetAtoBLoopTime(player, a_tick, b_tick);
+
+    vlc_player_Unlock(player);
+    return ret == VLC_SUCCESS ? 0 : -1;
+}
+
+int
+libvlc_media_player_set_abloop_position( libvlc_media_player_t *p_mi,
+                                         double a_pos, double b_pos )
+{
+    vlc_player_t *player = p_mi->player;
+    vlc_player_Lock(player);
+
+    int ret = vlc_player_SetAtoBLoopPosition(player, a_pos, b_pos);
+
+    vlc_player_Unlock(player);
+    return ret == VLC_SUCCESS ? 0 : -1;
+}
+
+int
+libvlc_media_player_reset_abloop( libvlc_media_player_t *p_mi )
+{
+    vlc_player_t *player = p_mi->player;
+    vlc_player_Lock(player);
+
+    int ret = vlc_player_ResetAtoBLoop(player);
+
+    vlc_player_Unlock(player);
+    return ret == VLC_SUCCESS ? 0 : -1;
+}
+
 libvlc_abloop_t
 libvlc_media_player_get_abloop( libvlc_media_player_t *p_mi,
                                 libvlc_time_t *a_time, double *a_pos,