Cutting on key frames ?

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solazy
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Posts: 128
Joined: 13 Nov 2008 17:45
VLC version: 1.1.11
Operating System: Windows XP SP3

Cutting on key frames ?

Postby solazy » 07 Jan 2011 05:00

Using VLC, when I record (export) a part of an avi file with the red button, the exported file never starts at the position I wanted to :(
This comes (probably) from the fact that Vlc starts the recording after it found the NEXT key frame.

Here is an example : imagine an avi file having key frames placed every 10 seconds (i.e you'll find a key frame at the beginning of the file, then next key frame at 10th seconds, next one at 20th seconds etc...)
Now if I start the recording at the 12th second, I won't export seconds from 12 to 19, as the exported file will start at the 20th second (the next key frame) , so 8th seconds won't be recorded (12-19)

My question : is it possible to forward jump from key frame to key frame ?
(in the same way as the hotkey "e" goes to the next frame, which by the way is a duplicate with the "Frame by Frame" advanced controls button)

This "jump to next key frame" functionality exists in some other programs (avi splitter from example) but I don't know if it exists in Vlc
This could help in the way that we could start the recording phase being placed on a key frame, knowing exactly what will be recorded, without loss of several seconds.
Thanks in advance

VLC_help
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Re: Cutting on key frames ?

Postby VLC_help » 07 Jan 2011 20:22

VLC cannot do that. If you need accurate cutting you might use video editor like AVIdemux.

solazy
Cone that earned his stripes
Cone that earned his stripes
Posts: 128
Joined: 13 Nov 2008 17:45
VLC version: 1.1.11
Operating System: Windows XP SP3

Re: Cutting on key frames ?

Postby solazy » 07 Jan 2011 21:04

Thx for your answer VLC_help
Btw you're very helpful in this forum, replying clearly to so many posts, I just wanted to point it out.


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