@@ -1504,10 +1504,10 @@ static int dvbsub_parse_display_definition_segment(AVCodecContext *avctx,

         avctx->height = display_def->height;

     }

-    if (buf_size < 13)

-        return AVERROR_INVALIDDATA;

-

     if (info_byte & 1<<3) { // display_window_flag

+        if (buf_size < 13)

+            return AVERROR_INVALIDDATA;

+

         display_def->x = bytestream_get_be16(&buf);

         display_def->width  = bytestream_get_be16(&buf) - display_def->x + 1;

         display_def->y = bytestream_get_be16(&buf);