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6.1. Selecting codecs and container formats
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-selecting-codec.html
mpeg. MPEG-1 and MPEG-2 PS. rawvideo. raw video stream (no muxing - one video stream only) rawaudio. raw audio stream (no muxing - one audio stream only) The AVI container is the native container format for MEncoder, which means that it's the one that is best handled, and the one for which MEncoder was designed.
6.7. Stream copying - MPlayer
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-streamcopy.html
Rationally: video stream copying can be useful for example when only the audio stream has to be encoded (like, uncompressed PCM to MP3). Audio stream (option -oac copy): straightforward. It is possible to take an external audio file (MP3, WAV) and mux it into the output stream. Use the -audiofile filename option for this.
mencoder: ts to avi (x264) with multiple audio stream ...
https://forum.videohelp.com/threads/289790-mencoder-ts-to-avi-%28x264%29-with-multiple-audio-stream
For each audio stream beyond the first, you have to add -newaudio (1 video + 1 audio stream is default). So, the correct mapping for two audio streams is-map 0:0 -map 0:2 -map 0:3 -newaudio (stripping stream 0:1), for all three-map 0:0 -map 0:3 -map 0:2 -newaudio -map 0:1 -newaudio (inverted audio stream order).
MEncoder - LinuxTVWiki
https://www.linuxtv.org/wiki/index.php/MEncoder
$ mencoder -ovc copy -oac copy -o stream.ts dvb://"STREAM NAME" This will copy the video (-ovc) and audio (-oac) streams to the file stream.ts. Transcoding the file to XviD. An MPEG-TS dump of a DVB stream is extremely large (~1GB for 30 minutes). MEncoder will also allow you to transcode the stream dump into something more useful, like XviD.
Extract audio stream with mencoder / Multimedia and Games ...
https://bbs.archlinux.org/viewtopic.php?id=209171
Re: Extract audio stream with mencoder Decided to get it another way, with mplayer, thus mplayer dvd://2 -dvd-device VIDEO_TS -ao pcm:fast:file=a.wav -vo null -vc null lame -V2 a.wav a.mp3 mencoder -ovc copy video.avi -oac copy -audiofile a.mp3 -o movie1.avi -mc 0 …
sound - Trying to merge .avi videos with mencoder - Ask …
https://askubuntu.com/questions/528332/trying-to-merge-avi-videos-with-mencoder
Video stream: 8299.826 kbit/s (1037478 B/s) size: 179034171 bytes 172.567 secs 5181 frames Audio stream: 134.242 kbit/s (16780 B/s) size: 2895679 bytes 172.565 secs. I've tried several different alternatives. I tried -oac copy and -oac faac, but achieved the same result each time.
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