Be more verbose about H264 cropping errors.

libavcodec/h264_ps.c

@@ -403,10 +403,10 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){
         sps->crop_top   = get_ue_golomb(&s->gb);
         sps->crop_bottom= get_ue_golomb(&s->gb);
         if(sps->crop_left || sps->crop_top){
-            av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
+            av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ... (left: %d, top: %d)\n", sps->crop_left, sps->crop_top);
         }
         if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){
-            av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ...\n");
+            av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ... (right: %d, bottom: %d)\n", sps->crop_right, sps->crop_bottom);
         }
     }else{
         sps->crop_left  =