From 0d0f7f0ba43f64312ae4a05d97afecf1b7b1330c Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 7 Sep 2014 13:00:47 +0200 Subject: [PATCH] avcodec/mpegvideo: check that the context is initialized in ff_mpv_common_frame_size_change() The function otherwise would initialize the context without setting context_initialized alternatively we could set context_initialized Fixes valgrind anomalies related to ticket 3928 Signed-off-by: Michael Niedermayer --- libavcodec/mpegvideo.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 7ae4e3580b..613a92e455 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -1456,6 +1456,9 @@ int ff_mpv_common_frame_size_change(MpegEncContext *s) { int i, err = 0; + if (!s->context_initialized) + return AVERROR(EINVAL); + if (s->slice_context_count > 1) { for (i = 0; i < s->slice_context_count; i++) { free_duplicate_context(s->thread_context[i]);