[MPlayer-users] Audio sync problem with mencoder
zacharias at uymail.com
Mon Mar 12 13:57:39 CET 2012
im not that experienced. i ve jsut recentlymove to linux as my main OS. but
acttualy i have the same issue.
i thought it would be something wrong with my config. i actually do dump
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.
> Message: 1
> Date: Sun, 11 Mar 2012 20:42:31 -0400
> From: Greg Ward <greg at gerg.ca>
> To: mplayer-users at mplayerhq.hu
> Subject: [MPlayer-users] Audio sync problem with mencoder
> Message-ID: <20120312004230.GB5399 at gerg.ca>
> Content-Type: text/plain; charset=us-ascii
> Hi all --
> I've been a happy user of mencoder for many years, mainly for ripping
> DVDs. Something changed recently and it stopped working: specifically,
> the audio is no longer in sync with video. I first started having this
> problem with Ubuntu's binary package a couple of weeks ago; it's still
> happening with the current binary from Ubuntu 11.10 (version
> 1.0~rc4.dfsg1+svn33713-1). I just built mplayer/mencoder from source
> (svn r34809) and the problem is still there.
> The symptom is simple: the audio is about 30 sec behind the video, at
> least near the start of the file. (I have not tried to determine if
> it's a simple fixed offset, or if the delay changes later in the
> Everything works perfectly when I play the DVD using either mplayer or
> Comparing DVD playback to playing from the ripped file, it appears
> that the audio plays at the same speed, but the video goes too fast.
> Example: I've just ripped the first 3 min of a DVD where the first
> dialog is at 2:29 when playing the DVD. In the ripped file, the
> character's mouth moves at 1:59, but the words don't come until 2:29.
> I get the same problem when I play the ripped file with either mplayer
> or VLC, so I assume the problem is in the file rather than the player.
> Here's the command I use to rip:
> mencoder dvd://1 -quiet \
> -oac copy \
> -ovc lavc \
> -lavcopts vcodec=mpeg4:vhq:vbitrate=2048:autoaspect=1 \
> -mc 0 -noskip \
> -o <outfile>
> ("-mc 0 -noskip" is a recent addition after I Google'd for mencoder
> audio sync problems. It does not seem to have helped.)
> Oh yeah, I'm doing one-pass ripping -- I've never bothered to figure
> out two-pass, since I'm not hugely concerned about disk space or
> quality. I just keep my rips until I get around to watching the movie
> and then delete them.
> I usually rip to .avi files. I've tried different container formats
> (.mkv, .mpg), and still have similar problems.
> Any suggestions?
> Oh yeah, system info:
> * Ubuntu 11.10 (oneiric)
> * uname -a: Linux lucifer 3.0.0-16-generic #28-Ubuntu SMP Fri Jan 27
> 17:44:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
> * libc version:
> $ ls -l /lib/*/libc[.-]*
> -rwxr-xr-x 1 root root 1685816 2012-03-06 21:17 /lib/x86_64-linux-gnu/
> lrwxrwxrwx 1 root root 12 2012-03-06 21:17
> /lib/x86_64-linux-gnu/libc.so.6 -> libc-2.13.so
> * gcc, ld, binutils:
> $ gcc -v
> Using built-in specs.
> Target: x86_64-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
> --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr
> --program-suffix=-4.6 --enable-shared --enable-linker-build-id
> --with-system-zlib --libexecdir=/usr/lib --without-included-gettext
> --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6
> --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
> --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin
> --enable-objc-gc --disable-werror --with-arch-32=i686
> --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
> --host=x86_64-linux-gnu --target=x86_64-linux-gnu
> Thread model: posix
> gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
> $ ld -v
> GNU ld (GNU Binutils for Ubuntu) 126.96.36.19910810
> $ as --version
> GNU assembler (GNU Binutils for Ubuntu) 188.8.131.5210810
> Copyright 2011 Free Software Foundation, Inc.
> This program is free software; you may redistribute it under the
> terms of
> the GNU General Public License version 3 or later.
> This program has absolutely no warranty.
> This assembler was configured for a target of `x86_64-linux-gnu'.
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