On Tue, 01 Jul 2008 21:53:00 +0200, Herman Robak <[EMAIL PROTECTED]> wrote:

> On Tue, 01 Jul 2008 09:43:11 +0200, AERTS Bert <[EMAIL PROTECTED]> wrote:
>
>>> -----Original Message-----
>>> From: [EMAIL PROTECTED] (Herman Robak)
>
>>> These are obviously interlacing artifacts:
>>> http://users.skynet.be/fa991376/CinelerraCompositor1.png
>>>
>>
>> I agree: the first picture shows interlacing. But this is only in the
>> Compositor window and not in the resulting mpeg. Why are Kaffeine and
>> Avidemux not showing this interlacing?
>
>  Either they perform deinterlacing, or the MPEG encoder does.

 Sorry, I assumed re-coded output, and not camera original video.
It's the player that deinterlaces.  The MPEG stream contains flags 
that tells about interlacing.  A proper decoder/player must handle 
those flags. 

 But what is "proper" for a player may be inadequate for an 
editor/compositor.  Naive deinterlacing is OK for normal speed 
playback without scaling, warping, cross-fading or sharpening, 
which is what players do.  Cinelerra would need something much 
more clever, and the required changes would be deep.

-- 
Herman Robak

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