On Mon, Mar 28, 2016, at 15:37, Carl Eugen Hoyos wrote: > Francesco Turco <fturco <at> fastmail.fm> writes: > > > $ mplayer -dvd-device /dev/sr0 -dumpstream -dumpfile Alien.vob dvd://1 > > For best quality you should keep this file. > Note that it is compatible with many video players > including WMP iirc and needs very little power on > playback.
Initially I also believed I should not transcode VOBs into WebM. But all my attempts at remuxing the initial VOB files into other containers (MPEG or MKV) failed. $ ffmpeg -i alien-1.vob -map 0:0 -map 0:2 -map 0:3 -codec copy output.mkv ... [matroska @ 0x558894a494a0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly [matroska @ 0x558894a494a0] Can't write packet with unknown timestamp av_interleaved_write_frame(): Invalid argument [matroska @ 0x558894a494a0] Can't write packet with unknown timestamp Error writing trailer of output.mkv: Invalid argument ... If I try using MPEG instead I can't set the language metadata for the audio tracks: $ ffmpeg -i alien-1.vob -map 0:0 -map 0:2 -map 0:3 -codec copy -metadata:s:a:0 language=ita -metadata:s:a:1 language=eng -f dvd output.mpeg ... [dvd @ 0x55a3208ab4e0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly ... [dvd @ 0x55a3208ab4e0] buffer underflow st=1 bufi=1081 size=1536 ... _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
