1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 4d57865629..e18f42d99a 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -660,11 +660,11 @@ do {                                                                    \
         if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
             const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
 
-            if (!desc) {
+            planes = av_pix_fmt_count_planes(frame->format);
+            if (!desc || planes <= 0) {
                 ret = AVERROR(EINVAL);
                 goto fail;
             }
-            planes = (desc->flags & PIX_FMT_PLANAR) ? desc->nb_components : 1;
 
             for (i = 0; i < planes; i++) {
                 int v_shift    = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;