[mythtv-users] mythjobqueue commflagging startup delay?
seven at seven.dorksville.net
Sun Feb 12 23:25:05 UTC 2012
On 12 February 2012 04:05, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> On 02/11/2012 11:51 AM, Jim Stichnoth wrote:
> > On Sat, Feb 11, 2012 at 8:28 AM, Raymond Wagner wrote:
> >> On 2/11/2012 11:00, Brian J. Murrell wrote:
> >>> I'm running mythjobqueue on another machine to do commflagging and I've
> >>> noticed what seems to be a delay in processing. Let me give you an
> >>> example:
> >>> 2012-02-11 10:30:22.919551 I JobQueue: Commercial Detection Starting
> for "This Old House":"This Old House Barrington Project, Part 2 of 10"
> recorded from channel 4024 at 2012-02-11T10:30:00
> >>> 2012-02-11 10:30:25.451068 C mythcommflag version: master
> [v0.25pre-4426-g52d2827] www.mythtv.org
> >>> 2012-02-11 10:40:54.519037 I Finding Logo
> >> I believe there is an intentional 10 minute delay when running
> >> commercial flagging live behind a recording.
> > For whatever reason, the commflagger wants to wait by default until at
> > least 624 seconds has recorded until starting logo detection. See the
> > calculation of commDetectLogoSecondsNeeded in ClassicLogoDetector.cpp.
> Because the logo detection code requires a significant number of frames
> to accurately identify any logos to use for logo detection.
> If it's really a problem for you, disable logo detection commercial
> detection method. Or, feel free to try out the gpu-commflag branch,
> which has an unfinished rewrite of commercial detection, which includes
> a different logo detection algorithm that tries to identify logos
> without having to scan a huge number of frames. But note that that
> branch isn't expected to work, so it's probably a bit premature for bug
Has anyone thought about compiling a db of known logos for commflagging?
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