[MPlayer-users] please help with video capture
Jack
lt at speakeasy.net
Sat Sep 25 05:45:19 CEST 2004
Sometimes, when just copying the stream from a capture card, the hard
drive can't write fast enough to keep up with it. If you encounter this
problem, you'll have to switch your capture card to mjpeg output
(assuming it supports it) by adding "mjpeg" and "decimation=<1,2, 4>" to
your -tv options. decimation=2 will give you 352x240.
Or, if you have enough processor, you could simply encode to a lossless
codec (such as huffyuv) on the fly. (-ovc lavc -lavcopts
vcodec=huffyuv:vstrict=-1)
-lt
Ricardo Kleemann wrote:
>Wonderful, I'll give it a try
>
>Thanks for the info, Loren!
>
>Ricardo
>
>----- Original Message -----
>From: "Loren Merritt" <lorenm at u.washington.edu>
>
>
>
>>AVI is a container. Whether it's lossy or not depends on the compression
>>format you use. But "-ovc copy" just copies the input video stream as-is,
>>so it is lossless, and you can encode from Capture.avi
>>
>>--Loren Merritt
>>
>>
>>
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