[FFmpeg-devel] [PATCH] doc: document aresample:first_pts
stefasab at gmail.com
Tue Jan 22 00:14:55 CET 2013
On date Monday 2013-01-21 20:43:32 +0100, Michael Niedermayer encoded:
> On Mon, Jan 21, 2013 at 07:40:38PM +0100, Stefano Sabatini wrote:
> > On date Monday 2013-01-21 16:47:34 +0100, Michael Niedermayer encoded:
> > > Documentation copied from asyncts, the options are supposed to do
> > > the same thing. If not please submit a testcase where they differ
> > > so we can fix it.
> > >
> > > Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> > > ---
> > > doc/ffmpeg-resampler.texi | 8 ++++++++
> > > 1 file changed, 8 insertions(+)
> > >
> > > diff --git a/doc/ffmpeg-resampler.texi b/doc/ffmpeg-resampler.texi
> > > index d45126f..cd3c02e 100644
> > > --- a/doc/ffmpeg-resampler.texi
> > > +++ b/doc/ffmpeg-resampler.texi
> > > @@ -168,6 +168,14 @@ may be stretched or squeezed for each second.
> > > Default value is 0, thus no compensation is applied to make the samples match
> > > the audio timestamps.
> > >
> > > + at item first_pts
> > > +For swr only, Assume the first pts should be this value.
> > Assume -> assume
> > And this documentation doesn't really explain what the option really
> > does ("it assumes something" is not a very useful explanation about
> the text is from libav
> the puprose of this option is to implement what first_pts of asyncts
> If asyncts had a clear documentation i could copy it but as it has
> just this text i can only copy that text.
> To clarify an ambigous text i first need to know how it should be
> interpreted. I dont know that, i asked yesterday for a testcase on IRC
> i had no luck people where too busy.
> I could document the implementation we have but if it turns out
> to differ fron asyncts than the docs and implementation would be wrong
> as its intended to be compatible.
> Thus i suggest we apply this patch with typo fixes and otherwise
> dont mess with it
At least you should clarify what the unit is (a PTS or a duration?),
or you can bet that people will ask on ML and on IRC.
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