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mxfdec: fix NULL pointer dereference 

Metadata streams have priv_data set to NULL.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun 2016-11-05 00:17:53 +01:00
parent bb6a7b6f75
commit 0efb610611
1 changed files with 1 additions and 1 deletions
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2
libavformat/mxfdec.c
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@ -391,7 +391,7 @@ static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
for (i = 0; i < s->nb_streams; i++) {
MXFTrack *track = s->streams[i]->priv_data;
/* SMPTE 379M 7.3 */
if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
if (track && !memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
return i;
}
/* return 0 if only one stream, for OP Atom files with 0 as track number */