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Code Issues Releases Activity

avformat/mpegtsenc: fix first_pcr initial update

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Commit 6f36eb0da71d22aadf8f056f0966bd86656ea57e claim it fixes endless loop on
package generation if muxrate specified and copyts used. But actually it does
not work properly if -mpegts_copyts 1 is specified:

ffmpeg -y -copyts -i loewe.ts -c:v libx264 -x264opts nal-hrd=cbr:force-cfr=1 -b:v 3500k -minrate 3500k -maxrate 3500k -bufsize 1000k  -c:a mp2 -f mpegts -mpegts_copyts 1 -muxrate 4500k -vframes 1000 test.ts

ffmpeg generate huge file until it reach zero-based pcr value equal to first dts.

Attached patch fixes it.

Reviewed-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Maksym Veremeyenko 2021-11-03 12:57:45 +02:00 committed by Marton Balint
parent 9d4989f2e1
commit a085418303
1 changed files with 5 additions and 5 deletions
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10
libavformat/mpegtsenc.c
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@ -1852,12 +1852,12 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
if (side_data)
stream_id = side_data[0];
if (ts->copyts < 1) {
if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
ts->first_pcr += dts * 300;
ts->first_dts_checked = 1;
}
if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
ts->first_pcr += dts * 300;
ts->first_dts_checked = 1;
}
if (ts->copyts < 1) {
if (pts != AV_NOPTS_VALUE)
pts += delay;
if (dts != AV_NOPTS_VALUE)