> > Dear list, > > > > New ffmpeg user. > > > > I am currently using the following incantation to receive an H.264 stream: > > > > ffmpeg -hide_banner -nostats -loglevel panic -async 1 -i > > udp://192.168.1.60:17001 -vcodec copy -codec:a aac -b:a 128k -f mpegts > > pipe:1 > > > > The media server ingesting the stream expects it on stdin, as you can see. > > > > The trouble is that audio is about half a second late relative to video, > > and I'd like to correct that on the way into the media server. > > > > Guidance I've found to date on this subject involves feeding the input > > into ffmpeg twice (i.e. by specifying -i twice with the same input > > file). But that can't work with a stream, since the stream arrives only > > once and can therefore also only be read once. > > > > Any hints? > > > > Many thanks, Jan
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 _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
