[FFmpeg-devel] [PATCH] Show examples to avoid to decode audio streams in pass 1

Stefano Sabatini stefano.sabatini-lala
Wed Aug 13 21:20:05 CEST 2008


On date Wednesday 2008-08-13 19:48:01 +0200, Diego Biurrun encoded:
> On Tue, Aug 12, 2008 at 12:26:11PM +0200, Stefano Sabatini wrote:
> > On date Saturday 2008-08-09 18:28:19 +0200, V?ctor Paesa encoded:
> > > 
> > > Diego Biurrun said:
> > > > On Sat, Aug 09, 2008 at 09:23:31AM +0200, Stefano Sabatini wrote:
> > > >>
> > > >> +ffmpeg -i foo.mov -vcodec libxvid -pass 1 -an -f rawvideo -y
> > > >> /dev/null + at end example
> > > >
> > > > Do we have Windows examples anywhere else?
> > > 
> > > Well, the FAQ humbly mentions the "copy" Windows command as closest
> > > equivalent of "cat".
> > 
> > I still continue to regard the -f null issue as a bug, but since it's
> > not clear if it can be fixed I'm happy with this working command.
> > 
> > --- doc/ffmpeg-doc.texi	(revision 14711)
> > +++ doc/ffmpeg-doc.texi	(working copy)
> > @@ -429,6 +429,12 @@
> > +On pass 1, you may just deactivate audio and set output to null,
> > +examples for Windows and Unix:
> > + at example
> > +ffmpeg -i foo.mov -vcodec libxvid -pass 1 -an -f rawvideo -y NUL
> > +ffmpeg -i foo.mov -vcodec libxvid -pass 1 -an -f rawvideo -y /dev/null
> 
> If this can be reduced to just one command with -f null, I would prefer
> it, otherwise this looks OK.

No currently -f null doesn't work, I'll eventually fix the docs if
I'll be able to get it working, so I'm going to commit it.

Regards.
-- 
FFmpeg = Friendly Frenzy Meaningless Purposeless Enhanced Game




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