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-rw-r--r--libavcodec/utils.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 9005f27bde..32af2569e4 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -819,7 +819,8 @@ int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
if (!frame->sample_aspect_ratio.num)
frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
- if (av_image_check_sar(frame->width, frame->height,
+ if (frame->width && frame->height &&
+ av_image_check_sar(frame->width, frame->height,
frame->sample_aspect_ratio) < 0) {
av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
frame->sample_aspect_ratio.num,