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Re: Xvid (Mpeg4) & variable rate encoding?

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  #1  
Old 06-26-2003, 09:30 AM
Default Re: Xvid (Mpeg4) & variable rate encoding?



> 1 Pass - quality
> is a constant quality mode. You can set quality to be a number between 0
> and 100 where 100 is the highest possible quality.


Yes, I was looking at that, but the documentation to Xvid seemed to
say that
that was not really a variable bit rate selector (ie. all frames still
are the same size), in the sense the Ogg VBR might be (ie. for audio),
but rather, affects something about how the quantization is done
before the compression step. So a bit
different I think.

Could someone clarify? Does xvid support true variable bit rate
encoding for video (is it even part of the Mpeg4 standard?, ie. some
frames are different sizes/bitrates, than others, depending on
complexity).

Thank you!

Jack


jack turer
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  #2  
Old 06-29-2003, 12:40 PM
Pandzor
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Default Re: Xvid (Mpeg4) & variable rate encoding?


"jack turer" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) m...
> Could someone clarify? Does xvid support true variable bit rate
> encoding for video (is it even part of the Mpeg4 standard?, ie. some
> frames are different sizes/bitrates, than others, depending on
> complexity).
>
> Thank you!
>

Xvid 2 pass encoding ---> variable bitrate encoding.


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