mpeg4video_parser: stop using deprecated avcodec_set_dimensions

libavcodec/mpeg4video_parser.c

@@ -20,6 +20,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "internal.h"
 #include "parser.h"
 #include "mpegvideo.h"
 #include "mpeg4video.h"
@@ -89,7 +90,9 @@ static int av_mpeg4_decode_header(AVCodecParserContext *s1,
     init_get_bits(gb, buf, 8 * buf_size);
     ret = ff_mpeg4_decode_picture_header(s, gb);
     if (s->width && (!avctx->width || !avctx->height || !avctx->coded_width || !avctx->coded_height)) {
-        avcodec_set_dimensions(avctx, s->width, s->height);
+        ret = ff_set_dimensions(avctx, s->width, s->height);
+        if (ret < 0)
+            return ret;
     }
     s1->pict_type= s->pict_type;
     pc->first_picture = 0;