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Re: Recording TV with Debian

coolzone@it.dk writes:

> On Wed, 02 Jul 2008 20:19:12 -0300
> With mencode I used the following command (using PAL in my country):
> mencoder tv:// -tv
> driver=v4l2:input=1:norm=pal:width=640:height=480:device=/dev/video0:
> freq=775.25:adevice=/dev/dsp1:forceaudio:audiorate=32000 buffersize=64
> -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=400:keyint=30 -oac mp3lame
> -lameopts br=32:cbr:mode=3 -ffourcc divx -o "test.avi"
> I tried to change the options, but no matter what I did, the result was
> poor.
> With transcode I used this command:
> transcode -x v4l2=resync_margin=1:resync_interval=250,v4l2 -g 640x480
> -i /dev/video0 -p /dev/dsp -e 32000,16,2 -N 0x1 -J
> resample,levels,smartyuv,pv -w 4000 -y ffmpeg -F mpeg4 -o test.avi
> Which results in some larger files, but with excelent quality.
> Any advice on how to improve would be greatly appreciated, especially
> about the file sizes that transcode produces.

I have not used transcode in a long time, but it seems to me at first
glance that the above command has a video bitrate of 4000 whereas the
mencoder is 400.  If the mencoder command is as you have typed it here
such a low bitrate could be at least part of the trouble.


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