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Old 01-21-2009, 10:34 AM   #1
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capture speeded mplayer output


I've been trying to speed up adn slow down some video files with mplayer recently.

I looked it up, and though there were some google results dealing with it, I couldn't find a complete process description / command set.

Basically I want to do

mplayer video.file -speed 0.5 > newvideo.file

This won't work properly. Some of the google results talked about named pipes, which I duly learnt about, but found, that only the audio was being slowed properly. Obviously I want both the audio and video to be slowed down simualtnaeously.

Has anybody managed this? Any advice?

Old 01-21-2009, 07:34 PM   #2
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You probably need to use mencoder, as in

mencoder -oac copy -ovc copy -o newvideofile -speed 1.5 videofile

but it's quite likely this will not handle the audio correctly. Maybe it depends on the format of the audio track. You could try some other options for the audio codec. 'mencoder -oac help' tells you what is available, or try with '-oac pcm' instead.
Old 01-22-2009, 07:59 AM   #3
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hi maroonbaboon,

thanks for your reply. I will try that.

Another thought I had was using xvidcap!!! That has got to be the kludge of kludges! I might even try it to see how disgusting it will turn out.



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