Why not Xvid? [was codec optimization]

[salsaman]

José Antonio wrote:

> On 3/1/07, *Zvi Devir* <zdevir at technion.ac.il 
> <mailto:zdevir at technion.ac.il>> wrote:
>
>
>     Sorry for jumping ahead, but this something I really don't understand.
>     Let's assume that there are currently a few valid US patents on JPEG,
>     MJPEG (There are probably more) as well as for MPEG4.2 (xvid divx
>     wmv1
>     and many more are MPEG4 part 2 implementations). My question is, so
>     what? A patent is a territorial legal being -- it is valid only
>     where it
>     was granted. Even if JPEG is covered by hundreds of active US
>     patents,
>     and some unenforceable EU patents, it has nothing to do with countries
>     in which the OLPCs will be distributed, since those patents are
>     invalid
>     there.
>
>     salsaman at xs4all.nl <mailto:salsaman at xs4all.nl> wrote:
>     > On Tue, February 27, 2007 19:46, José Antonio wrote:
>     >> What about Xvid? It is open source and is the better codec in CPU
>     >> resources
>     >> use and quality...
>     >
>     > Well, if you are going to use patented codecs, why not just use
>     x264. It's
>     > better quality than xvid.
>     x264 requires more computation power for decoding compared to xvid.
>
>
> Yes, Xvid requires half computation than any other codec, in my 
> experiences.
> (using Windows XP, ffdshow+Xvid, Sempron 2800+, mostly to record TV in 
> real time).
>
> With any other codec I reach 100% of frame grab, 640x480, 29,97 fps, 
> RGB, deinterlacing, with 60% of CPU time.
>
> Benjamin Franklin was right: patents sux!
>
> -- 
> nome: "José Antonio Meira da Rocha"  tratamento: "Prof. MS."
> atividade: "Pesquisa e aprendizado em mídias digitais"
> googletalk: email: MSN: joseantoniorocha at gmail.com 
> <mailto:joseantoniorocha at gmail.com>
> ICQ: 658222 Skype: "meiradarocha_jor"
> veículos: [ http://meiradarocha.jor.br http://olpcitizen.blogspot.com ]
>
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Yes, but surely the point is *why not use theora and vorbis* ? Shouldn't 
we be supporting completely free standards wherever they are available ? 
Several million laptops with ogg theora and vorbis support by default, 
would provide a lot of leverage.

Gabriel.
http://lives.sourceforge.net