[x264-devel] Faster real-time encoding

[Marcin Sokalski]

Hi,

PTHREADS is opensource implementation of posix threads,
as far as I know its the only one. Its stable and of nice
performance. From the other side, x264 is designed to
use this implementation. So my suggestion is to download pthreads 
sources, add pthreads.c into x264.exe compilation,
add: #define HAVE_PTHREAD to let say common.h
and enjoy multi core encoding.

bye,
MS

Marcin Sokalski
ATSI SA

msokalski at atsisa.com


>>> simon.mazue at telecom-bretagne.eu 2008-07-24 16:32:31 >>>
Hello,

I want to built x264 on Windows and Visual Studio.
Until now, it was quite slow so I was wondering if it's possible to
use threads that way. Because it seems x264 is not using Windows
threads and I don't know about pthread on Windows, but I'm not sure
there's a good implementation.

As you speak about threads, I would like to ask you if you know the
best threads' library to use on Windows.

Thanks in advance.

-- 
Simon

On Wed, Jul 23, 2008 at 5:40 PM, Marcin Sokalski <msokalski at atsisa.com>
wrote:
> Uhm...
>
> I use Quad 2.4GHz + x264 compiled with PTHREADS
>
> x264.exe ..blblbla.. --threads 4
>
> and i got 140 fps (including rgb2yuv, and screen hdc capture) at
> 720x576
>
> seams 1024x768 at 25fps is possible with your hardware but
> you have to use PTHREADS!!!
>
> Marcin
>
>
>>>> send2ari at gmail.com 2008-07-23 17:24:28 >>>
> Hi All,
>
> I want to encode a 1024x768 25 fps video in realtime. I am running
the
> encoder on
> Intel(R) Core(TM) 2 CPU 1.18 GHz  cpu.  The command-line I am using
is
>
> x264.exe -b 0 -I 1 -B 1000 --no-psnr --no-ssim --no-cabac -o
> output.h264
> input.y4m [1024x768]
>
> But I am getting only 8 fps at output.
>
> Can anybody tell me what should be the command-line parameters?
>
> Thaking you in advance.
>
> Regards
> Arindam
>
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