[mpeg2] Re: Fw: hello

[Warren Young <warren@etr-usa.com>]

Mark Cuss wrote:
> 
> You cannot do MPEG2 encoding with your AIW Radeon in Linux.  Although the
>  board has the hardware that does the IDCT math for the compression, I have
>  heard that ATI has not realeased the information to the open source
>  community on how to run this part of the board.

It wouldn't matter if they did release this information.  IDCT is the
inverse discrete cosine transform; that is, the inverse of the DCT, used
by the MPEG encoding process.  It would still be good if ATI released
info on their IDCT processor: the software DVD player writers could use
it to speed up their decoding.

To the original poster: since ATI's MPEG encoder is entirely in
software, there's really nothing to lobby ATI for.  Just find a software
MPEG encoder for Linux that operates in real time.  Trivial.  :)

Bonus hint: SAMPEG, mentioned at linuxtv.org, will become real time in
about 6 years, assuming that Moore's law holds, and that the software
remains unoptimized.
-- 
= Warren -- Video articles: http://www.cyberport.com/~tangent/video/
= 
= ICBM Address: 36.8274040 N, 108.0204086 W, alt. 1714m