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[all variants] Mencoder audio delay [Archive] - Ubuntu …
https://ubuntuforums.org/archive/index.php/t-1058631.html
EDIT 2: On closer inspection, adding -noskip makes the audio sync up in mplayer, but when I try to play the movie in Totem (and probably other players), I get the reverse problem, audio that once lagged behind now plays prematurely.
Audio delay when ripping DVD to AVI with mencoder
https://www.linuxquestions.org/questions/linux-software-2/audio-delay-when-ripping-dvd-to-avi-with-mencoder-379872/
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mencoder(1): movie encoder - Linux man page
https://linux.die.net/man/1/mencoder
-delay <sec> audio delay in seconds (positive or negative float value) Negative values delay the audio, and positive values delay the video. Note that this is the exact opposite of the -audio-delay MEncoder option. NOTE: When used with MEncoder, this is not guaranteed to work correctly with -ovc copy; use -audio-delay instead. -ignore-start
[MPlayer-users] Audio sync problem with mencoder
https://groups.google.com/g/mplayer_users/c/2kb7bEHOMkQ
fisrtly the video woth no sound to m2v format, (i thnk. im not at home atm so i cant confirm) but i think youll get the point. but when i mux the video and the audio in an mkv container, i get the delay. its very weird. any thoughts?-----> > Message: 1
MENCODER skips frames when dealing with MPEG-2 audio ...
https://forum.videohelp.com/threads/269324-MENCODER-skips-frames-when-dealing-with-MPEG-2-audio
Basically PAL DVD compliant MPEG-2 streams are encoded with audio codec mp2 (MPEG 1 - Layer 2), this is the standard, but mencoder cannot handle it without glitches, it skips 5-6 frames at the beginning and this causes the whole audio stream of the conversion will have positive or negative latency and this causes a/v desync.
Mencoder Conversions Extract audio from a video | NoWarTools
https://nowardev.wordpress.com/2009/09/19/mencoder-conversions-extract-audio-from-a-video/
mencoder -forceidx -ofps 25 -oac mp3lame -lameopts abr:br=128 -srate 48000 -vf scale=720:576,harddup -ovc xvid -xvidencopts bitrate=900:pass=2 INPUT -o OUTPUT.AVI. Options to add. video options-aspect 16:9 or 4:3-speed value 0.1 –>1; 1—>boh-ss 00:00:00 -endpos hh:mm:ss-vf pp=lb-audio-delay 2.200-vf rotate=flip
MEncoder - LinuxTVWiki
https://www.linuxtv.org/wiki/index.php/MEncoder
MEncoder will also allow you to transcode the stream dump into something more useful, like XviD. Example: To transcode a dump to XviD 800kbps video and MP3 128kbps audio, type: $ mencoder -forceidx -vf scale=640:-2 -ovc xvid -xvidencopts bitrate=800 -oac mp3lame -lameopts cbr:br=128 stream.ts -o output.avi
#1488 (A/V desync when encoding with yadif=1) – MPlayer
https://trac.mplayerhq.hu/ticket/1488
That is, when I play the result with "mplayer -delay 0.15 test.avi", everything's ok. The (simplified) command is: $ mencoder -vf yadif=1,harddup -ovc lavc -lavcopts vcodec=mpeg4:keyint=132:threads=2:vbitrate=1000 -fps 50 -ofps 50 -oac copy -dvd-device . dvd://1 -aid 0 -o test.avi -endpos 0:2:0.
6.1. Selecting codecs and container formats
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-selecting-codec.html
6.1. Selecting codecs and container formats. Audio and video codecs for encoding are selected with the -oac and -ovc options, respectively. Type for instance: mencoder -ovc help. to list all video codecs supported by the version of MEncoder on your machine. The following choices are available: Audio Codecs: Audio codec name.
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