[MPlayer-dev-eng] Re: libvo2, 1st proposed spec

[Arpi]

Hi,

> >we need just a very fast mpeg encoder, i think it's mp1e.
> >is rte just a wrapper around mp1e and libavcodec, or it does change
> >(speedup?) mp1e?
> >
> >>when we switch to libvo2, can't we just wipe libavcodec and ffmpeg.so 
> >>from every file in the mplayer tree and introduce rte?
> >>
> >heh? why should we wipe out ffmpeg/libavcodec? it's mainly used for decoding.
> >
> oh, I only thought it was used in mpegpes (and now dxr3) for encoding... 
you should RTFS (or at least RTFM) before thinking...

btw i'll add libavcodec encoding support for mencoder too. it has lots of
good encoders, including divx3 and divx4, not only mpeg1.
the only problem is that it's not fast enough for realtime, at least
compared to mp1e. btw maybe optimizing ffmpeg's encoder is easier than
supporting mp1e :)  or importing just some code from mp1e (fast DCT etc).
mpeg encoder of libavcodec is mostly C code, only motion comp. searching is
MMX but we don't use it at all (I frames only).

> then I understand why you don't want to switch to rte... I'll dig deeper 
> and come up with a solution that is simple for both users and developers 
> to use mp1e....
users side: easy:  mpegenc=ffmpeg|mp1e  (in config file)
btw if mp1e is good quality and faster, we can forget libavcodec for
encoding. i choose it because it has some divx->mpeg transcoding (-sameq
option of ffmpeg) but it's easy to add to mp1e i think.


A'rpi / Astral & ESP-team

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