[x264-devel] Adaptive B-Frame decision?!

[Peter.List at telekom.de]

Hallo Jason,

thank you for the quick and conclusive reply. 
I guess scene cut detection would still work with --scenecut 0
but has the lowest sensitivity, or is it effectively turned off 
(without using the --no-scenecut command)

I am curious, why there is this connection between the two commands
"--b-adapt 0" and "--scenecut 0"

Regards, Peter


> On Wed, Feb 2, 2011 at 3:22 AM,  <Peter.List at telekom.de> wrote:
> > Hallo all,
> >
> >
> >
> > we currently make some experiments, where we need to maintain a
regular
> > group of picture (GoP) pattern,
> >
> > like P, b, b, P, b, b, P....
> >
> >
> >
> > Therefore we have put "-b-adapt 0" into the commandline.
> >
> > That has worked perfectly so far.
> >
> >
> >
> > Now it seems with a newer version of x.264 (ver. 1867) the
GoP-pattern
> is
> > very variable as if the -b-adapt command was ignored.
> >
> > This is the commandline we used:
> >
> >
> >
> > x264.exe --preset medium --profile high --level 4.0 --aud -B
<bitrate> -
> -fp
> > 25 -I 25 --open-gop normal --bframes 2 --b-adapt 0 --b-pyramid none
--
> slices
> > 1 --qpmin 2 --me umh --merange 64 --verbose --input-res 1920x1080 -o
> > <out.264>
> >
> >
> >
> > What have we missed??
> 
> --scenecut 0
> 
> Jason
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