[mythtv-users] Running mythcommflag on another PC?

Greg Oliver oliver.greg at gmail.com
Thu Mar 7 02:38:16 UTC 2024

On Wed, Mar 6, 2024 at 8:30 PM Ian Evans <dheianevans at gmail.com> wrote:

> On Wed, Mar 6, 2024, 6:47 p.m. Ian Evans <dheianevans at gmail.com> wrote:
>> On Wed, Mar 6, 2024, 6:10 p.m. Stephen Worthington <
>> stephen_agent at jsw.gen.nz> wrote:
>>> On Wed, 6 Mar 2024 16:31:49 -0500, you wrote:
>>> [snip]
>>> >Sorry... never actually got to using a slave. My temporary setup on
>>> >the i7-3720QM wasn't cutting it, so I was just tossing out an idea. The
>>> >spiked load was just the Load reading in top. The laptop was still
>>> pretty
>>> >responsive, but the fan was just howling like a banshee.
>>> >
>>> >Of course, a laptop isn't the perfect airflow situation, so maybe I
>>> should
>>> >hold off on commflagging until Im using a better setup. : -)
>>> >
>>> >I am curious why the real-time test took 15 high load minutes on
>>> "looking
>>> >for logo" before settling down and flagging at 90+ fps.
>>> The only problem there seems to be the "looking for logo" bit.  I do
>>> not remember that way back when I last used commercial flagging, so
>>> there may be some new method that is being used that is causing your
>>> problem.  This may be working as designed, but it could also be a bug.
>>> The rest of the flagging is going faster than real time, which is what
>>> is expected.  Does the logo problem happen only on specific channels,
>>> or is it common to all channels?
>> I'll have to do some more tests on different channels and will report
>> back.
> Set up two recordings, staggered by about 10 minutes.
> Both videos spent about 9-10 minutes "building logo detection buffer" with
> high CPU% in top. After that, about another 5-10 minutes "looking for
> logo." When that finished, CPU% dropped to about 45%. Load started about
> 3.95 and settled down to about 1.25. It was flagging between 96 to 115 fps.
> One recording was ATSC 1, 1080, the other a 480 subchannel.
> Has anyone else noticed that many American channels are no longer
> superimposing network bugs on the lower right. Nothing. When did that stop?
> Also, I'm in mythtv 34. Should I be enabling the "experimental" commercial
> detection features?

IIRC, v31 was the last version I used, but for several years prior and up
to, I always had "experimental" enabled.
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