Hi Moritz,
I'll appreciate if you can show me some sample clips with multiple video streams, such as DVDs/Blu Rays that use it for various angles. Thanks! B.R. Andrew At 2016-05-13 16:45:49, "Moritz Barsnick" <barsn...@gmx.net> wrote: >On Fri, May 13, 2016 at 12:02:52 +0800, qw wrote: >> I know there maybe multiple audio streams in single file, because each audio >> stream has different channel, quality or language. >> Is it likely that there is multiple video streams in single file? I haven't >> seen it before. > >It's totally possible. Whether it's likely depends on what you mean. I >can create a sample for you, and it will be 100 % likely to have two >video streams. ;-) [1] > >DVDs/Blu Rays use it for various angles. MPEG Transport Streams have >this when carrying multiple programs. HLS has this, but technically, >it's a bit like a playlist, and there are then several separate streams >each one layer deeper which resolve to e.g. segmented MPEG-TS with only >one video stream each. (ffmpeg's demuxer still presents you a multitude >of video and audio streams on the top level HLS.)) > >Nonetheless, if you're implementing something to handle streams, you'll >need to at least be able to ignore, better even select multiple video >streams. > >Moritz > >[1] ffmpeg -f lavfi -i testsrc -f lavfi -i testsrc2 -map 0 -map 1 -t 1 >~/tmp/test.mp4 >_______________________________________________ >ffmpeg-user mailing list >ffmpeg-user@ffmpeg.org >http://ffmpeg.org/mailman/listinfo/ffmpeg-user > >To unsubscribe, visit link above, or email >ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
