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-rw-r--r--libavcodec/utils.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 5354459866..95f41f315a 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -563,7 +563,7 @@ int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
}
}
- if (avctx->codec->max_lowres < avctx->lowres) {
+ if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
avctx->codec->max_lowres);
ret = AVERROR(EINVAL);