[x264-devel] Re: Scalability

[Christian Bienia]

On Wed, 2007-02-28 at 14:27, Alex Izvorski wrote:
> On Tue, 2007-02-27 at 15:10 -0500, Christian Bienia wrote:
> > Hi,
> > 
> > I encoded a short video with 512 frames in HDTV resolution (1920 x 1080
> > pixels). For the command line I used most switches which increase
> > encoding time, the exact command line was:
> > 
> > x264 -B 1000 --qp 20 --partitions b8x8,i4x4 --bframes 3 --ref 5 --direct
> > auto --b-pyramid --b-rdo --weightb --bime --mixed-refs --no-fast-pskip
> > --me umh --subme 7 --analyse b8x8,i4x4 --threads ${NTHREADS} -o
> > output.264 input_1920x1080_512.y4m
> 
> Hello Christian,
> 
> Thank you for some very interesting results.  Could you do a run with:
> 
> x264 --bitrate=8000 --ref=1 --keyint=30 --scenecut=-1 --bframes=1
> --no-b-adapt --threads ${NTHREADS} -o output.264 input_1920x1080_512.y4m
> 
> and with threads up to 256 or 512?  I suspect that will scale much
> better.  Thanks ;)
> 
> Regards,
> --Alex

Hi Alex,

I'll submit a job with those arguments. It'll take a day or two until
the supercomputer schedules the job. I'll post the results as soon as I
have them.

- Chris


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