[FFmpeg-devel] [PATCH] lavfi: Port mp=pp7 to libavfilter

Michael Niedermayer michaelni at gmx.at
Thu Jan 8 14:53:13 CET 2015


On Thu, Jan 08, 2015 at 01:43:24PM +0530, arwa arif wrote:
> On Wed, Jan 7, 2015 at 9:46 PM, Michael Niedermayer <michaelni at gmx.at>
> wrote:
> 
> > On Wed, Jan 07, 2015 at 03:42:16PM +0100, Stefano Sabatini wrote:
> > > On date Wednesday 2015-01-07 19:14:49 +0530, arwa arif encoded:
> > > > >
> > > > >
> > > > > Keep in mind that the difference may be due to the QP information
> > > > > missing in mp=pp7. So you should focus on that (try to reset/disable
> > > > > qp processing in pp7 and see if it works the same as mp=pp7).
> > > > >
> > > >
> > >
> > > > For qp=0, the results are bitexact. I am not able to figure out how do
> > I
> > > > take care
> > >
> > > Isn't qp=0 the default? How do you get (with which parameters) mp=pp7
> > > and pp7 to issue the same output?
> >
> > i get the same output for
> > mp=pp7=10:0 and  pp7=10:0
> > mp=pp7=10:1 and  pp7=10:1
> > mp=pp7=10:2 and  pp7=10:2
> >
> > the default for mode seems to differ though so the mode has to be
> > specified for comparing
> >
> >
> But I am getting same ouput for default mode,  i.e,
> mp=pp7=0:0 and  pp7=0:0
> mp=pp7=0:1 and  pp7=0:1
> mp=pp7=0:2 and  pp7=0:2
> 
> When qp is a non-zero value, the output is different.

it was the same here, how can i reproduce a case where it differs ?
what input did you use ? what command line ?

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
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