avformat/webmdashenc: Don't pass NULL to memcmp

Affects the FATE-tests webm-dash-manifest-unaligned-video-streams,
webm-dash-manifest and webm-dash-manifest-representations.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit a42c47b77feda837a966aa96569ed8a2553b1c36)
This commit is contained in:
Andreas Rheinhardt 2019-09-23 23:23:10 +02:00 committed by Andreas Rheinhardt
parent 955be73bc5
commit 9f011f0876

View File

@ -155,7 +155,8 @@ static int bitstream_switching(AVFormatContext *s, const AdaptationSet *as)
!av_strstart(track_num->value, gold_track_num->value, NULL) ||
gold_par->codec_id != par->codec_id ||
gold_par->extradata_size != par->extradata_size ||
memcmp(gold_par->extradata, par->extradata, par->extradata_size)) {
(par->extradata_size > 0 &&
memcmp(gold_par->extradata, par->extradata, par->extradata_size))) {
return 0;
}
}