[MPlayer-dev-eng] Documentation - TV capture example suggestion

[Gabor Nagy]

On page
http://www.mplayerhq.hu/DOCS/HTML/en/tv-input.html#tv-tips

the following example appears:
  mencoder -tv driver=v4l:width=768:height=576 \
  -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=350:vhq:vqmax=31:keyint=300 \
  -oac mp3lame -lameopts cbr:br=48 \
  -vf crop=720:540:24:18,pp=tn/lb,scale=384:288 -sws 1 -o output.avi tv://

It might be better to switch off tempnoise filter in this case, since the
resizing itself eliminates the noise, and tempnoise takes up some CPU time
- which may matter for slower CPUs:

  mencoder -tv driver=v4l:width=768:height=576 \
  -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=350:vhq:vqmax=31:keyint=300 \
  -oac mp3lame -lameopts cbr:br=48 \
  -vf crop=720:540:24:18,pp=lb,scale=384:288 -sws 1 -o output.avi tv://

Maybe it would still worth to have the example as it is, because otherwise
new users would not hear about tn if they only have a look on the examples,
so a short note mentioning that it could be easily switched off on low
CPUs.

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