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avformat/movenc: Avoid loosing cluster array on failure 

Fixes: crash
Fixes: check_pkt.mp4

Found-by: Rafael Dutra <rafael.dutra@cispa.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5c2ff44f91)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-03-18 18:01:52 +01:00
parent d4d9c117eb
commit 61f87c7207
1 changed files with 3 additions and 2 deletions
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5
libavformat/movenc.c
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@ -5393,11 +5393,12 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
if (trk->entry >= trk->cluster_capacity) {
unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
if (av_reallocp_array(&trk->cluster, new_capacity,
sizeof(*trk->cluster))) {
void *cluster = av_realloc_array(trk->cluster, new_capacity, sizeof(*trk->cluster));
if (!cluster) {
ret = AVERROR(ENOMEM);
goto err;
}
trk->cluster = cluster;
trk->cluster_capacity = new_capacity;
}