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nut: Check chapter creation in decode_info_header 

This fixes a segmentation fault when accessing the metadata.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

CC: libav-stable@libav.org
This commit is contained in:
Andreas Cadhalpun 2015-04-28 20:57:59 +02:00 committed by Luca Barbato
parent 243e8443cd
commit b34257eefd
1 changed files with 4 additions and 0 deletions
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4
libavformat/nutdec.c
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@ -487,6 +487,10 @@ static int decode_info_header(NUTContext *nut)
nut->time_base[chapter_start %
nut->time_base_count],
start, start + chapter_len, NULL);
if (!chapter) {
av_log(s, AV_LOG_ERROR, "Could not create chapter.\n");
return AVERROR(ENOMEM);
}
metadata = &chapter->metadata;
} else if (stream_id_plus1) {
st = s->streams[stream_id_plus1 - 1];