[MPlayer-dev-eng] [PATCH] autoq support for control()

[Michael Niedermayer]

Hi

On Sunday 10 February 2002 18:40, Juan J. Sierralta P. wrote:
> On Sun, 2002-02-10 at 08:21, Arpi wrote:
[...]
> > not. I only
>
> 	Ok. So that cache stuff can make a diference for intra only.
> The DCT/IDCT don`t seem any faster compared with ffmpeg.
hmm, i thought the libmp1e dct should be faster, the IDCT isnt used for intra 
only encodings at least i hope it isnt used ;)
i could try to implement the aan dct (=ffmpeg c dct) in mmx ... but its less 
accurate than the current one
btw, porting code from libmp1e is tricky as its mostly pure asm and no 
comments...

[...]
> > > 	Also a lot of overhead could reduced if you concentrate on MPEG1 only
> > >
> > > :(
> >
> > hmm
>
> 	You don`t sound much conviced. Take a look at the lots of (if .. else)
> on mpegvideo.c
imho these if/else per block/macroblock do slow things down, i know that from 
the postprocessing code each if() had a 0.2% speed effect iirc

Michael