[MPlayer-dev-eng] life after the 0.90 release...

Alban Bedel albeu at free.fr
Mon May 27 18:42:11 CEST 2002


Hi Alex Beregszaszi,

on Mon, 27 May 2002 18:16:42 +0200 you wrote:

> Hi,
> 
> > - common code for fbdev based driver (mode siwtching, etc)
> nice, but is anyone using fbdev yet?
Dunno, but a good part of this code (res detection, mode switching) can be used at
least for vo_tdfxfb, perhaps for some other vo also.

> > > 3. move audio encoders & filters to libmpcodecs [al3x, Anders, me]
> > - support for hw audio decoding ?
> > With the current audio decoding system we loose packet boundaries making
> > hw decoding almost impossible.
> hm? current system handles only pcm (and ac3) output
> what do you mean as hw audio decoding? (ac3 decoding is supported, i think)
The actual ac3 hw decoding is only useful for soudcard with spdif. I was thinking to
mpeg decoder board. They need the audio packets one by one like like for the
video. In the current system the audio decoder fill a buffer and then we send the
content of this buffer to the ao when it can read it. So even if we do some pass
through we loose the packet boundaries. What I was think is to ask the ao wich
format it can accept (PCM, AC3, MPEG, etc) and then handle non-pcm format
in a different way. In fact some ao are ready to accept non-pcm format (at least
ao_mpegpes and ao_dxr2) but it can't be used as far as I can tell.

> > > 4. demuxer api changes, transfer demuxer modules to plugins [me, albeu?]
> > 
> > > - add support for demuxing more than one audio/video/sub streams,
> > >   required for mencoder to convert multilanguage etc files
> > Would be nice to have support for non-spu subtitles. Ogg alredy support this and some
> > other upcoming format plan such feature also.
> > Imho it would be better to have all subtitles reader at this level if possible, so we can
> > also mux them.
> you mean to store only text subtitles? (recognize spu pictures as text?)
> 
> > 
> > > - better support for dvdnav
> > Including hw support ? At least the dxr2 have such a thing, don't know about other hw.
> hw dvdnav support? dxr2? nice.
> 
> > > - color subtitles?
> i would like to have this ;)
> 
> > - support for some other attribute like bold,italic and so on ?
> if libfreetype2 can handle it, than it's possible
> 
> > 9. Other stuff.
> > - More sws output format, the big missing one is Y8 :)
> why do you need Y8? it's grayscale, is it?
Yes, so we can fully support 8bit output. It's currentlly possible (use only the Y plan 
of YV12) but it's suboptimal. Isn't greyscale better than no picture at all ?
	Albeu



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