@@ -1648,6 +1648,7 @@ static int video_thread(void *arg)

     AVFilterContext *filt_out = NULL, *filt_in = NULL;

     int last_w = is->video_st->codec->width;

     int last_h = is->video_st->codec->height;

+    enum PixelFormat last_format = is->video_st->codec->pix_fmt;

     if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {

         SDL_Event event;

@@ -1684,7 +1685,8 @@ static int video_thread(void *arg)

 #if CONFIG_AVFILTER

         if (   last_w != is->video_st->codec->width

-            || last_h != is->video_st->codec->height) {

+            || last_h != is->video_st->codec->height

+            || last_format != is->video_st->codec->pix_fmt) {

             av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",

                    last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);

             avfilter_graph_free(&graph);

@@ -1697,6 +1699,7 @@ static int video_thread(void *arg)

             filt_out = is->out_video_filter;

             last_w = is->video_st->codec->width;

             last_h = is->video_st->codec->height;

+            last_format = is->video_st->codec->pix_fmt;

         }

         frame->pts = pts_int;