[Mplayer-users] 0.18pre4 released with native divx codec :)

[Arpi]

Hi,

> >> Loading DLL: /usr/lib/win32/divx_c32.ax  OK
> >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >this is the old codec....
> >
> >swap ff* and ds* codecs in teh codecs.conf, allow mplayer to find
> >ff* ones first...
> O'k! I've done it. Now mplayer calls ffmpeg codecs instead of windows codecs.
> But maybe it would be better to remove these records from codecs.conf in CVS
> and codecs from win32codec.zip?

Bad idea.
1, native codecs are usual slow (at least before you optimize them :))
2, ffmpeg code is very experimental, and maybe buggy yet. and it doesn't
   support postprocesisng yet.

> audiocodec mp3acm
>   comment "Optimized to Intel MMX/SSE, conflicts with security kernel patches"
>   dll "l3codeca.acm"
> 
> Now it's clear - why mplayer calls win32 codecs instead of native.
Because they are faster. Yes, for mp3lib you're right, but AFAIK for
mp3 the mp3lib codec is already the first.

> Btw, I've done some "reverse engineer" analysis and didn't find any MMX or SSE opcodes
> in l3codeca.acm.
Do it again. I've found many using your great Biew ;)

> At first - these DLL is never called by mplayer.
Never say never except if you are sure ever.
users has the ability to change order of codecs, or simply force using
a single codec with -afm and -nodshow options.
and if they changed order, they will be used.

> Second - why this record is present in mplayer conf
which record?

> Third - I don't know - may be you have l3codeca.acm which is optimized for MMX and SSE
> but my copy doesn't contain such optimization.
hmm. check the codec pack from the ftp.
mine is from the original divx3.11 codec .zip
(it's the commercial one, the "demo" version in win98 is maybe unoptimized)
but i'll check again for sse code.


A'rpi / Astral & ESP-team

--
mailto:arpi at thot.banki.hu
http://esp-team.scene.hu

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