[MPlayer-dev-eng] mplayer-ww (mplayer fork!)

[Reimar Döffinger]

On Thu, Nov 04, 2010 at 01:06:51PM +0100, Diego Biurrun wrote:
> On Fri, Oct 29, 2010 at 07:19:01PM +0200, Reimar Döffinger wrote:
> > On Fri, Oct 29, 2010 at 09:52:35AM -0400, compn wrote:
> > > william wangs' pmp demuxer got somewhat ignored when he posted it,
> > > but since then he has developed mplayer-ww for windows. applying
> > > sherpya's patches (dsnative, winamp dsp filters). but also extending it
> > > to support directshow demuxers. also some fixes to opengl/directx
> > > in w7/vista.
> > > 
> > > http://sourceforge.net/projects/mplayer-ww/
> > > http://www.mplayer-ww.com/eng/changelog.html
> > > 
> > > his mplayer can play the pmp samples:
> > > http://samples.mplayerhq.hu/playstation/psp/
> > > 
> > > any plans to merge some of this stuff?
> > > the pmp demuxer could be a good first step.
> > 
> > I don't really intend to accept any new demuxers for MPlayer.
> 
> I disagree here.  Our demuxers are unlikely to ever get removed, since
> they are a useful alternative to libavformat.  Plus, the PMP demuxer is
> much more likely to get ported from libmpdemux to libavformat than from
> some obscure MPlayer fork.

I don't think there is any significant likelyhood, no demuxer or decoder
was ever ported to FFmpeg, they were at best "reverse engineered" (in
case of RTjpeg that's not even an exaggeration) and reimplemented.

> So if somebody cleans up the PMP demuxer for inclusion, I'd say we
> should commit it.

That would mean spending developer time and review time to add it to
MPlayer, then spending more developer and review time to port it
to FFmpeg and the we'd still have only a GPL-only demuxer.
Having someone derive a specification from the code and then (same or
other person) implementing it for lavf is a much more sane way to do it
unless I vastly underestimate the complexity of the PMP format.