feat(ffmpeg): add playback complete event trigger (#7119)

docs/details/libs/ffmpeg.rst

@@ -40,6 +40,13 @@ See the examples below.
 
 .. _ffmpeg_example:
 
+Events
+------
+
+- :cpp:enumerator:`LV_EVENT_READY` Sent when playback is complete and auto-restart is not enabled.
+
+Learn more about :ref:`events`.
+
 Example
 -------
 

src/libs/ffmpeg/lv_ffmpeg.c

@@ -817,6 +817,9 @@ static void lv_ffmpeg_player_frame_update_cb(lv_timer_t * timer)
 
     if(has_next < 0) {
         lv_ffmpeg_player_set_cmd(obj, player->auto_restart ? LV_FFMPEG_PLAYER_CMD_START : LV_FFMPEG_PLAYER_CMD_STOP);
+        if(!player->auto_restart) {
+            lv_obj_send_event((lv_obj_t *)player, LV_EVENT_READY, NULL);
+        }
         return;
     }