[FFmpeg-devel] [PATCH 1/2] doc: do not generate doc/avoptions_(codecs|formats).texi

[Michael Niedermayer]

On Mon, Sep 16, 2013 at 02:05:22PM +0200, Michael Niedermayer wrote:
> On Sun, Sep 15, 2013 at 07:27:55PM -0700, Timothy Gu wrote:
> > On Sep 15, 2013 1:31 PM, "Michael Niedermayer" <michaelni at gmx.at> wrote:
> > >
> > > On Sun, Sep 15, 2013 at 08:59:19AM -0700, Timothy Gu wrote:
> > > > On Sep 15, 2013 4:35 AM, "Michael Niedermayer" <michaelni at gmx.at> wrote:
> > > > >
> > > > > On Sun, Sep 15, 2013 at 11:51:37AM +0200, Stefano Sabatini wrote:
> > > > > > On date Tuesday 2013-09-10 18:52:54 +0200, Michael Niedermayer
> > encoded:
> > > > > > > On Mon, Sep 09, 2013 at 09:56:08AM +0200, Stefano Sabatini wrote:
> > > > > > [...]
> > > > > > > > > diff --git a/.gitignore b/.gitignore
> > > > > > > > > index 1f13ec4..807ecb1 100644
> > > > > > > > > --- a/.gitignore
> > > > > > > > > +++ b/.gitignore
> > > > > > > > > @@ -33,8 +33,6 @@
> > > > > > > > >  /doc/*.html
> > > > > > > > >  /doc/*.pod
> > > > > > > > >  /doc/config.texi
> > > > > > > > > -/doc/avoptions_codec.texi
> > > > > > > > > -/doc/avoptions_format.texi
> > > > > > > > >  /doc/examples/decoding_encoding
> > > > > > > > >  /doc/examples/demuxing
> > > > > > > > >  /doc/examples/filtering_audio
> > > > > > > > > diff --git a/doc/Makefile b/doc/Makefile
> > > > > > > > > index 7415899..cfd2ca5 100644
> > > > > > > > > --- a/doc/Makefile
> > > > > > > > > +++ b/doc/Makefile
> > > > > > > > > @@ -50,13 +50,6 @@ doc/%.txt: doc/%.texi
> > > > > > > > >         $(Q)$(TEXIDEP)
> > > > > > > > >         $(M)makeinfo --force --no-headers -o $@ $< 2>/dev/null
> > > > > > > > >
> > > > > > > > > -GENTEXI  = format codec
> > > > > > > > > -GENTEXI := $(GENTEXI:%=doc/avoptions_%.texi)
> > > > > > > > > -
> > > > > > > > > -$(GENTEXI): TAG = GENTEXI
> > > > > > > > > -$(GENTEXI): doc/avoptions_%.texi:
> > doc/print_options$(HOSTEXESUF)
> > > > > > > > > -       $(M)doc/print_options $* > $@
> > > > > > > > > -
> > > > > > > > >  doc/%.html: TAG = HTML
> > > > > > > > >  doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
> > > > > > > > >         $(Q)$(TEXIDEP)
> > > > > > > >
> > > > > > > > I suppose it's OK. I suggest to keep the generating program for
> > > > > > > > easing merges.
> > > > > > >
> > > > > > > if the programs are kept, code to build and test them should be
> > kept
> > > > > > > too.
> > > > > >
> > > > >
> > > > > > > Also are our handwritten files complete and uptodate compared to
> > the
> > > > > > > autobuild ones ?
> > > > > >
> > > > > > We do an effort to keep them updated, but of course there is no
> > > > > > automated way to keep them updated/synched with the descriptions
> > > > > > (that's why we should add documentation when adding options).
> > > > >
> > > > > I belive that who objects to the automated system has to do the work
> > > > > that not using it causes.
> > > >
> > > > ...which is not me. When i submit the patch, the two files are already
> > > > useless. So it is the person who first created the codecs.texi file.
> > > >
> > > > >
> > > > > In practice id say
> > > > > That involves at least keeping track of changes of the automated
> > > > > output and integrating them. That way its also always known if or what
> > > > > is missing.
> > > >
> > > > +1
> > > > However, it is easy for changes from us, hard for changes from fork, as
> > > > they are the ones using the util.
> > >
> > > it should not be hard
> > > 1. run the tool with the last checkout of ffmpeg with which things
> > >    where in sync
> > > 2. run the tool with HEAD of ffmpeg
> > >
> > > 3. diff the resulting files
> > > 4. integrate the changes into the docs
> > >
> > > in above it makes no difference from where the changes originate
> > 
> > I know. But who's going to do that? You? But definitely not me (I just
> > started high school and there's an inf amount of homework).
> 
> Like i said, thouse who pushed for the change should do the work.
> That wasnt me, not that i consider a well maintaned manually written
> text a bad idea, but i just knew i would not have the motivation to
> maintain it.
> Alternatively maybe someone else volunteers to maintain these docs?

also i suspect people overestimate the amount of work for that.
Once automated and manual are in "sync" changes probably would be a
matter of copy and pasting a few lines from the automated scrpts output
diff to the docs each week ...

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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