[FFmpeg-devel] [PATCH]Basic XSUB encoder (take 2)

[Björn Axelsson]

On Tue, 3 Feb 2009, Michael Niedermayer wrote:

> On Tue, Feb 03, 2009 at 10:25:03AM +0100, Bj?rn Axelsson wrote:
> > On Mon, 2 Feb 2009, Diego Biurrun wrote:
> >
> > > On Mon, Feb 02, 2009 at 10:55:05PM +0100, Bj?rn Axelsson wrote:
> > > > On Sun, 1 Feb 2009, Bj?rn Axelsson wrote:
> >
> > [...]
> >
> > > > --- doc/general.texi.orig	2009-02-02 22:38:39.000000000 +0100
> > > > +++ doc/general.texi	2009-02-02 22:41:11.000000000 +0100
> > > > @@ -455,7 +455,7 @@
> > > >  @item ASS/SSA      @tab X @tab X
> > > >  @item DVB          @tab X @tab X @tab X @tab X @tab X
> > > >  @item DVD          @tab X @tab X @tab X @tab X @tab X
> > > > - at item XSUB         @tab   @tab   @tab   @tab X @tab
> > > > + at item XSUB         @tab X @tab X @tab X @tab X @tab X
> > >
> > > You implemented an encoder, a muxer, a demuxer and a renderer?
> > >
> > > Note that I continue confused about the inner workings of the subtitle
> > > system, so it is a sincere question.
> >
> > The more I think about that table, the more confused I get...
> >
> > Are the muxing/demuxing columns for stand-alone (de)muxers, like
> > libavformat/assdec.c which can handle .ass files, or for muxing in other
> > containers such as mkv, avi etc?
>
> avi is muxed by a avi muxer
> raw ass is muxed by a ass muxer
> raw xsub (if that exists) is muxed by a xsub muxer
> what can be unclear on this?

I'm easily confused, but:
- your reasoning is based on ffmpeg-specific definitions. In a more
  general sense, xsub is also muxed by the avi muxer (into avi).
- the use of "muxing"/"demuxing" is inconsistent with
  "encoding"/"decoding" as used above in the "file formats" table.

[...]

-- 
Bj?rn Axelsson