Re: vlc 0.2.82 debs available
Hi there,
On 23 Aug, this message from Josh Huber echoed through cyberspace:
> This is cool -- what I really need to get working now is the XVideo
> extention,
Works for me (I think ;-)
> as I suspect this will help greatly for speeed issues on my
> Lombard.
On any box. Xvideo is supported in X4.0.3 with ATI 128; for Mach64, look
at GATOS.
> Anyone tried gprof out lately on ppc? Last time I tried
> (granted, it was probably a year ago, it segfaulted a lot).
>
> In any case, I'm building vlc with --enable-gprof support as I write
> this now...
That should help find where we can improve.
One area is IDCT, where vlc contains some altivec code for MacOS
X/Darwin. Unfortunately, it's a C extension, and that is not supported
by our tools.
Also, most recent grafix chipsets provide some form of acceleration for
DVD playing, mostly in three areas: YUV to RGB and scaling (used by
Xvideo; available with ATI chipsets); IDCT in hardware (ATI Rage 128;
not supported); and motion compemsation (ATI; not upported).
According to the GATOS project, they're not planning on supporting the
advanced features anytime soon due to lack of documentation.
So I guess it is worthwhile to hack some Altivec acceleration into these
tools; that should help a lot.
Cheers
Michel
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