Hello What do you do when audio is in sync (lip sync) at times and off at other times ?
Thanks On Thu, 2 Mar 2023 at 3:35 am, Jan Ceuleers <[email protected]> wrote: > On 28/02/2023 22:27, German Geraskin wrote: > > You can offset an audio track relative to a video track by adding or > > subtracting a fixed value to the timestamps of one of the tracks. > > http://ffmpeg.org/ffmpeg-all.html#setpts_002c-asetpts > > Brilliant, thank you. > > For the benefit of search engines: my incantation has become: > > /usr/bin/ffmpeg -hide_banner -nostats -loglevel panic \ > -i udp://192.168.1.60:17001 \ > -filter_complex "asetpts=PTS-0.3/TB" \ > -vcodec copy -codec:a aac -b:a 256k -f mpegts pipe:1 > > This brings audio forward by 300ms relative to video. > > It is audio that needed to be shifted, because one cannot combine a > filter and the copy codec. > > Thanks again, Jan > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
