[FFmpeg-devel] racing video any compiling suggestions?

Micah Waddoups micah at askmicah.net
Wed May 22 06:28:18 CEST 2013

   I've got an x86_64 (3-core x 4Ghz) AMD system with Radeon video chip 
and just lately, since my last local compiling version 1.2.1 on Arch 
Linux, I have been having difficulty with some serious timing issues. 
|ffplay| seems to drift ahead by .1 to .5 seconds in the video, so the 
sound comes too late.  I've been trying with |ffmpeg| to utilize the 
schroedinger codec, and had some sporatic success a few times at first, 
but from then since the schro/dirac codec has been racing so far ahead 
of the audio that one can actually see the video going too fast in the 
resulting video.

   I have written a bunch of scripts around the new ffmpeg release, and 
I want to maximize use of the gradually progressing support for 
schroedinger/dirac as well as opus, so how to deal with this seems to be 
a either a matter to bring development focus to, or ask help resolving 
from my end.  Does anyone have a similar experience? Could there be a 
way to work around it at the compiling stage?

|ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers||
||  built on May 21 2013 11:46:35 with gcc 4.8.0 (GCC) 20130502 
||  configuration: --prefix=/usr --disable-debug --disable-static 
--enable-avresample --enable-dxva2 --enable-fontconfig --enable-gpl 
--enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm 
--enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb 
--enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus 
--enable-libpulse --enable-librtmp --enable-libschroedinger 
--enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis 
--enable-libvpx --enable-libx264 --enable-libxvid --enable-postproc 
--enable-runtime-cpudetect --enable-shared --enable-vdpau 
--enable-version3 --enable-x11grab||
||  libavutil      52. 18.100 / 52. 18.100||
||  libavcodec     54. 92.100 / 54. 92.100||
||  libavformat    54. 63.104 / 54. 63.104||
||  libavdevice    54.  3.103 / 54.  3.103||
||  libavfilter     3. 42.103 /  3. 42.103||
||  libswscale      2.  2.100 /  2.  2.100||
||  libswresample   0. 17.102 /  0. 17.102||
||  libpostproc    52.  2.100 / 52.  2.100||
||Hyper fast Audio and Video encoder||
||usage: ffmpeg [options] [[infile options] -i infile]... {[outfile 
options] outfile}...||
||Use -h to get full help or, even better, run 'man ffmpeg'|

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