[mythtv-users] Is mythtv threaded

Brian Wood beww at beww.org
Tue Sep 11 19:26:25 UTC 2007

Yeechang Lee wrote:
> Brian Wood <beww at beww.org> says:
>>> I know that Transcoding is not threaded as my second cpu never goes
>>> over 5% when I am transcoding a single mpeg.
>> Sounds like whatever you're using to transcode (ffmpeg?) was not
>> compiled with threading support.
> How does that work, exactly? I know MythTV uses embedded versions of
> ffmpeg (and libmpeg2, I presume). Will ./configure (or, in my case,
> the ./configure and flags in the ATrpms SRPM) automatically compile
> ffmpeg with threading support? Or are you saying that despite the
> embedded ffmpeg, when MythTV transcodes with the internal transcoder
> it uses the external ffmpeg?

Not sure to be honest. I do know that compiling ffmpeg on my Gentoo box
with "threads" in the USE flags causes ffmpeg to utilize threads.

I wasn't aware Myth had an embedded ffmpeg, but if it does it should be
possible to have it compiled with thread support.

Sorry I can't be of more help.


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