[MPlayer-users] mplayer -ss overshooting
heitzso at growthmodels.com
Fri Apr 15 16:10:03 CEST 2005
Using -ss to position mplayer to a particular place in
a VBR mpeg2 file, mplayer typically overshoots and
starts playing significantly farther into the mpg file
than asked. I don't need frame accuracy. GOP level
or ± half second is fine.
Is there a workaround? Or can someone suggest another
Linux video viewer that I can drive from the command
line to start at a particular place (roughly GOP level
accuracy) in a video file?
Does the problem go away with CBR encoding?
My mpeg2 files were generated from high quality DV
captured over firewire into raw.dv files,
then compressed with:
transcode -i in -o out -x dv,dv -y mpeg2enc,mp2enc \
-N 0x50 -b 224 --export_prof dvd-ntsc \
-w 8000 --export_asr 2 --encode_fields b -j 0,8,0,8 \
-F '8,-c -4 2 -2 1 -K file=matrix.txt -R 2'
mplex -v 0 -f 8 -o out.m2v out.mpa -o out.mpg
The oddness about the above command is that I was
trying to force CBR, but I assume I failed because
mplayer still significantly overshoots when told
to go to a particular place in the video file and
Any and all clues greatly appreciated! Including
other email lists that I should monitor or post to.
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