[x264-devel] cpu capabilities: none

[Carlos Eduardo Moreira dos Santos]

On Thu, Dec 2, 2010 at 5:33 PM, BugMaster <BugMaster at narod.ru> wrote:

> On Thu, 2 Dec 2010 17:33:50 -0200, Carlos Eduardo Moreira dos Santos wrote:
> > Thank you. I compiled it myself and cpu is correctly detected.
> > However, the output is trash, like a TV in a non-working channel and
> > I can't figure out why. Besides that, it could not detect fps and
> > resolution anymore, but I solved this last problem by renaming the
> > file to *_widthxheigth.mpg and adding --fps option.
>
> > Thank you
>
> > On Thu, Dec 2, 2010 at 5:12 PM, Lou <lou at fakeoutdoorsman.com> wrote:
> > On Thu, 2 Dec 2010 11:28:59 +0100
> > James Darnley <james.darnley at gmail.com> wrote:
>
> >> On 02/12/2010, Carlos Eduardo Moreira dos Santos
> >> <cems at cemshost.com.br> wrote:
> >> > x264 [info]: using cpu capabilities: none!
> >> >
> >> > Is this the expected behavior? My yasm version is much newer than
> >> > others I've read to cause troubles in cpu detections. I've tried to
> >> > force capabilities with --asm, but I did not find numbers for MMX
> >> > and SSE.
> >>
> >> Stop using --disable-asm when compiling.
>
> > This appears to be x264 from the repository. Looks like he already
> > filed a bug report:
>
> > [Bug 684198] [NEW] CPU extensions are not detected
> > https://bugs.launchpad.net/ubuntu/+source/x264/+bug/684198
>
> > To the OP: if you don't want to wait for an Ubuntu fix you can compile
> > x264 yourself:
>
> > HOWTO: Install and use the latest FFmpeg and x264
> > http://ubuntuforums.org/showthread.php?t=786095
>
> > _______________________________________________
> > x264-devel mailing list
> > x264-devel at videolan.org
> > http://mailman.videolan.org/listinfo/x264-devel
>
>
> You probably compiled it without lavf support so it think that all you
> give to it is uncompressed files. That is why it doesn't work with mpg
> (it is compressed source).
>

lavf support worked after installing libavformat-dev, libswscale-dev and
recompiling x264. Now I have a 5x faster compiler!

Thank you


>
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