@@ -216,9 +216,10 @@ static int tgq_decode_frame(AVCodecContext *avctx,

         s->height = bytestream2_get_le16u(&s->gb);

     }

-    if (s->avctx->width!=s->width || s->avctx->height!=s->height) {

-        avcodec_set_dimensions(s->avctx, s->width, s->height);

-    }

+    ret = ff_set_dimensions(s->avctx, s->width, s->height);

+    if (ret < 0)

+        return ret;

+

     tgq_calculate_qtable(s, bytestream2_get_byteu(&s->gb));

     bytestream2_skip(&s->gb, 3);