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avformat/matroskaenc: Check codecdelay before use

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Fixes CID1238790

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-09 16:16:46 +01:00
parent 89bbf01978
commit e6971db12b
1 changed files with 8 additions and 4 deletions
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12
libavformat/matroskaenc.c
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@ -926,14 +926,18 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
}
if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->initial_padding && codec->codec_id == AV_CODEC_ID_OPUS) {
int64_t codecdelay = av_rescale_q(codec->initial_padding,
(AVRational){ 1, codec->sample_rate },
(AVRational){ 1, 1000000000 });
if (codecdelay < 0) {
av_log(s, AV_LOG_ERROR, "Initial padding is invalid\n");
return AVERROR(EINVAL);
}
// mkv->tracks[i].ts_offset = av_rescale_q(codec->initial_padding,
// (AVRational){ 1, codec->sample_rate },
// st->time_base);
put_ebml_uint(pb, MATROSKA_ID_CODECDELAY,
av_rescale_q(codec->initial_padding,
(AVRational){ 1, codec->sample_rate },
(AVRational){ 1, 1000000000 }));
put_ebml_uint(pb, MATROSKA_ID_CODECDELAY, codecdelay);
}
if (codec->codec_id == AV_CODEC_ID_OPUS) {
put_ebml_uint(pb, MATROSKA_ID_SEEKPREROLL, OPUS_SEEK_PREROLL);