avformat demux: don't access removed info

Palette data is now transmitted as a side data in AVPacket
(cherry picked from commit 4ca6ef05e16554c71c7480a7b4df59ab3a43f6c4)
Signed-off-by: KO Myung-Hun <komh@chollian.net>
Signed-off-by: Rafaël Carré <funman@videolan.org>

modules/demux/avformat/demux.c

@@ -302,11 +302,15 @@ int OpenDemux( vlc_object_t *p_this )
 
             fmt.video.i_width = cc->width;
             fmt.video.i_height = cc->height;
+#if LIBAVCODEC_VERSION_MAJOR < 54
             if( cc->palctrl )
             {
                 fmt.video.p_palette = malloc( sizeof(video_palette_t) );
                 *fmt.video.p_palette = *(video_palette_t *)cc->palctrl;
             }
+#else
+# warning FIXME: implement palette transmission
+#endif
             psz_type = "video";
             fmt.video.i_frame_rate = cc->time_base.den;
             fmt.video.i_frame_rate_base = cc->time_base.num * __MAX( cc->ticks_per_frame, 1 );