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avcodec/mpegvideo: check that the context is initialized in ff_mpv_common_frame_size_change()

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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 <michaelni@gmx.at>
(cherry picked from commit 0d0f7f0ba43f64312ae4a05d97afecf1b7b1330c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-09-07 13:00:47 +02:00
parent 77bb6b5bcc
commit 80aec733ad
1 changed files with 3 additions and 0 deletions
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3
libavcodec/mpegvideo.c
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@ -1436,6 +1436,9 @@ 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]);