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-rw-r--r--libavcodec/wmv2enc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/wmv2enc.c b/libavcodec/wmv2enc.c
index e4e51d32f9..e4d4159e37 100644
--- a/libavcodec/wmv2enc.c
+++ b/libavcodec/wmv2enc.c
@@ -63,6 +63,9 @@ static av_cold int wmv2_encode_init(AVCodecContext *avctx)
avctx->extradata_size = 4;
avctx->extradata = av_mallocz(avctx->extradata_size + 10);
+ if (!avctx->extradata)
+ return AVERROR(ENOMEM);
+
encode_ext_header(w);
return 0;