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avformat/vividas: simplify, use av_rescale_q() instead

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note it'll cause a small difference in accuracy for the pts, please see the testing result below:
 $ wget http://samples.ffmpeg.org/archive/all/unknown+unknown+unknown+unknown+5029_paramount_en_1250.viv
 $ ./ffmpeg -t 0.04 -i ./unknown+unknown+unknown+unknown+5029_paramount_en_1250.viv -f null -
 old:
 pts: 522
 pts: 1044
 pts: 1567
 pts: 3918
 pts: 8097
 pts: 12277
 pts: 16457
 ...

 new:
 pts: 522
 pts: 1045
 pts: 1567
 pts: 3918
 pts: 8098
 pts: 12278
 pts: 16457
 ...

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang 2020-04-28 11:49:16 +08:00
parent b69f5a72ce
commit 386dbf5726
1 changed files with 1 additions and 1 deletions
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2
libavformat/vividas.c
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@ -646,7 +646,7 @@ static int viv_read_packet(AVFormatContext *s,
pkt->stream_index = 1;
astream = s->streams[pkt->stream_index];
pkt->pts = av_rescale(viv->audio_sample, astream->time_base.den, astream->time_base.num) / astream->codecpar->sample_rate;
pkt->pts = av_rescale_q(viv->audio_sample, av_make_q(1, astream->codecpar->sample_rate), astream->time_base);
viv->audio_sample += viv->audio_subpackets[viv->current_audio_subpacket].pcm_bytes / 2 / astream->codecpar->channels;
pkt->flags |= AV_PKT_FLAG_KEY;
viv->current_audio_subpacket++;