[devede 3.22] I cant use all the cores in ubuntu 12.04

[FrancoGP]

ffmpeg use the command threads 8 when DEVEDE is runing, but it only
use 30-40% of the CPU, why? is a devede problem?

[Sergio Costas]

That's a problem with FFMpeg, which can't take advantage of so many cores.

El 23/05/12 10:44, FrancoGP escribi�:

> ffmpeg use the command threads 8 when DEVEDE is runing, but it only
> use 30-40% of the CPU, why? is a devede problem?
>

--
Nos leemos
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[Gunther Furtado]

Sex, 25.05.2012, Sergio Costas disse:

> That's a problem with FFMpeg, which can't take advantage of so many
> cores.
>

> El 23/05/12 10:44, FrancoGP escribió:

> > ffmpeg use the command threads 8 when DEVEDE is runing, but it only
> > use 30-40% of the CPU, why? is a devede problem?
> >
>

My system have 3 cores, In command line I've tried the following
command:

$ avconv -threads 6 -i <input> <output>

So making 2 threads per core and the usage of the CPU went from
around 30% to around 70%. But the job took exactly the same time so I
went back to

$ avconv -threads 6 -i <input> <output>

*avconv is the new ffmpeg in Debian.

cheers,

>
> --
> Nos leemos
> RASTER (Linux user #228804)
> ras...@rastersoft.com http://www.rastersoft.com
>

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Gunther Furtado
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[Sergio Costas]

> *avconv is the new ffmpeg in Debian. cheers,

Yes, and I want to add support for it in Devede. Does someone know the
differences between both (about command line parameters, of course).

[Gunther Furtado]

Sex, 25.05.2012, Sergio Costas disse:

> > *avconv is the new ffmpeg in Debian. cheers,
>
> Yes, and I want to add support for it in Devede. Does someone know the
> differences between both (about command line parameters, of course).
>

They are very very similar. The one thing I can think of right now is

-ab now spells -b:a (audio bitrate)
-b is -b:v (video bitrate)

> --
> Nos leemos
> RASTER (Linux user #228804)
> ras...@rastersoft.com http://www.rastersoft.com
>