[x264-devel] Capacity of x264

Panagiotis Issaris takis.issaris at uhasselt.be
Thu Apr 3 11:45:39 CEST 2008


Hi Son Minh Tran,

Son Minh Tran schreef:
> Hi All,
> Have someone  already tested the x264 coder for the stream High 
> Definition (1280x720 / 1920x1080) in realtime (25, 30 fps)? Can you 
> share the experience on the hardware configuration and software setting.
> Thanks

With nearly default settings, a system with 8 cores/CPUs at work is able 
to encode a video of 1920x1080 at 27fps.

The actual commandline used was:
x264 -threads X -q 20 -o test.264 video-1920x1080.yuv

I'm not sure whether it is actually a system with 4 CPU's each being 
dual-cores or 2 CPU's each being quad-cores.

Attached a very unscientific plot of x264 encoding full hd using 
different numbers of threads.

With friendly regards,
Takis
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