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Huge Files Using Direct Stream Copy In Virtualdub
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thomas999
Posted: Nov 17 2011, 11:59 AM


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I have an MJPG video. I tried to cut a portion of the video out using Direct Stream Copy in VirtualDub.
However, the resulting file is much bigger than the original file.

I googled and ppl said it was due to Avisynth using the uncompressed video.

However, I did not load an Avisynth script and opened the video directly.
I have since uninstalled Avisynth but the problem still occurs.

Anybody can help?
 
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johnmeehan
Posted: Nov 17 2011, 03:23 PM


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I'm relatively new to VirtualDub but my guess would be that the direct steam copy is saving the file as AVI.
 
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Abrazo
Posted: Nov 17 2011, 08:49 PM


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To cut out a portion of your video you can indeed use Direct Stream Copy.

Evenwell, you have to take care to do this for both, the "Video" part AND the "Audio" part of your file !

So look in the Video menu and choose Direct Stream Copy + look in the Audio menu and also choose Direct Stream Copy.

Have a try and than check the new result. Is it still (much) bigger than the original ?
 
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malky
Posted: Nov 17 2011, 10:29 PM


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Can't see how it would get larger using Direct Stream Copy for the video.
'Huge Files' imply uncompressed video saved using Full Processing Mode.

Use something like MediaInfo to find out what the new file is using for a codec - or load in VirtualDub and File > File Information.
 
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thomas999
Posted: Nov 19 2011, 07:42 PM


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It seems to be ok now.
I don't know why it is so.
 
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