Heya,
I'm looking for a program I can use to clip segments out of a AVI or MP4
file. Up until now, I've been using VirtualDub, but I've been having some
odd problems with it. For example, there are a few files that I have that
have a few leading seconds I want to remove, but every time I try, it
fails. It just will not take them off. So I'm looking for a relatively
simple video editing program that will allow me to select a beginning frame
and an ending frame, and save everything between them.
Any ideas?
Joel
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Avidemux should work:
http://avidemux.sourceforge.net/
http://www.avidemux.org/admWiki/doku.php
Regards,
LelandJ
On 08/06/2011 08:06 PM, Joel N. Fischoff wrote:
> Heya,
>
> I'm looking for a program I can use to clip segments out of a AVI or MP4
> file. Up until now, I've been using VirtualDub, but I've been having some
> odd problems with it. For example, there are a few files that I have that
> have a few leading seconds I want to remove, but every time I try, it
> fails. It just will not take them off. So I'm looking for a relatively
> simple video editing program that will allow me to select a beginning frame
> and an ending frame, and save everything between them.
>
> Any ideas?
>
> Joel
>
>
[excessive quoting removed by server]
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On Sun, Aug 7, 2011 at 2:06 AM, Joel N. Fischoff <petrukio@rcn.com> wrote:
> Heya,
>
> I'm looking for a program I can use to clip segments out of a AVI or MP4
> file. Up until now, I've been using VirtualDub, but I've been having some
> odd problems with it. For example, there are a few files that I have that
> have a few leading seconds I want to remove, but every time I try, it
> fails. It just will not take them off.
AVI (normally mpeg4) or MP4 use keyframes and then just store the
differences until the next keyframe.
I think the problem is that you can't just remove a few seconds
without re-encoding.
See: http://www.virtualdub.org/docs_processing.html
"I tried to cut out some frames in direct stream copy mode, and
VirtualDub put them back in!?"
The only solution with VirtualDub is to use 'Full Reprocessing Mode'
or 'Fast Recompress' if you're not applying any filters.
Remember to select compression codecs!
I think Leland's suggestion of Avidemux can work around this problem:
"You use the smart copy mode. Only available for Divx3 and mpeg4.
Smart copy will re-encode the part that losts its reference images
with a fixed quantizer. A value of 4 or 5 is generally ok."
--
Paul
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