sgidec: stop using deprecated avcodec_set_dimensions

libavcodec/sgidec.c

@@ -200,9 +200,9 @@ static int decode_frame(AVCodecContext *avctx,
         return -1;
     }
 
-    if (av_image_check_size(s->width, s->height, 0, avctx))
-        return -1;
-    avcodec_set_dimensions(avctx, s->width, s->height);
+    ret = ff_set_dimensions(avctx, s->width, s->height);
+    if (ret < 0)
+        return ret;
 
     if (ff_get_buffer(avctx, p, 0) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed.\n");