vlc_actions: add ACTIONID_FRAME_PREVIOUS

include/vlc_actions.h

@@ -163,6 +163,7 @@ typedef enum vlc_action_id {
     ACTIONID_PAUSE,
     ACTIONID_STOP,
     ACTIONID_FRAME_NEXT,
+    ACTIONID_FRAME_PREVIOUS,
     /* input seeking */
     ACTIONID_JUMP_BACKWARD_EXTRASHORT,
     ACTIONID_JUMP_FORWARD_EXTRASHORT,

src/misc/actions.c

@@ -303,6 +303,7 @@ static const struct name2action
     { "disc-menu", ACTIONID_DISC_MENU, },
     { "faster", ACTIONID_RATE_FASTER, },
     { "frame-next", ACTIONID_FRAME_NEXT, },
+    { "frame-previous", ACTIONID_FRAME_PREVIOUS, },
     { "incr-scalefactor", ACTIONID_SCALE_UP, },
     { "intf-boss", ACTIONID_INTF_BOSS, },
     { "intf-popup-menu", ACTIONID_INTF_POPUP_MENU, },