[mythtv-users] mythtranscode & Removing Commercials

Mark Wormgoor mark at wormgoor.com
Sat Feb 14 17:58:47 UTC 2009


--------------------------------------------------
From: "Drew Tomlinson" <drew at mykitchentable.net>
Sent: Saturday, February 14, 2009 5:32 PM
To: <mythtv-users at mythtv.org>
Subject: [mythtv-users] mythtranscode & Removing Commercials

> I'm trying to remove commercials following the script at .  However the
> commercials remain.  Please help me understand what steps I might be
> missing.
>
> I start with this file:
>
> -rw-r--r-- 1 mythtv mythtv 4855732228 Feb 14 07:57
> /tv2/record/2401_20090203210100.mpg
>
> I use the frontend to mark commercials and create a cutlist:
>
> mythcommflag --getcutlist -f /tv2/record/2401_20090203210100.mpg
> 2009-02-14 08:21:56.878 Using runtime prefix = /usr
> 2009-02-14 08:21:56.899 Empty LocalHostName.
> 2009-02-14 08:21:57.019 New DB connection, total: 1
> 2009-02-14 08:21:57.036 Closing DB connection named 'DBManager0'
> 2009-02-14 08:21:57.041 New DB connection, total: 2
> Cutlist:
> 0-896,19457-23388,69559-75306,95427-99059,134951-140382,173228-184232,208510-212498
>
> Then I run this to cut commercials:
> mythtranscode --honorcutlist --showprogress -i
> /tv2/record/2401_20090203210100.mpg
> 2009-02-14 08:14:21.324 Using runtime prefix = /usr
> 2009-02-14 08:14:21.369 Empty LocalHostName.
> 2009-02-14 08:14:21.456 New DB connection, total: 1
> 2009-02-14 08:14:21.472 Closing DB connection named 'DBManager0'
> 2009-02-14 08:14:21.473 Enabled verbose msgs: important
> 2009-02-14 08:14:21.479 New DB connection, total: 2
> 2009-02-14 08:14:21.488 New DB connection, total: 3
> 2009-02-14 08:14:21.548 Using protocol version 40
> 2009-02-14 08:14:24.397 Transcode: Looking for autodetect profile:
> Autodetect from 720p
> 2009-02-14 08:14:24.456 Transcode: Using autodetect profile: MPEG2
> 2009-02-14 08:14:24.456 Switching to MPEG-2 transcoder.
> Mux rate: 20.36 Mbit/s
> 2009-02-14 08:14:29.586 3.6% complete
>
> <snip>
>
> 2009-02-14 08:17:05.131 96.9% complete
> $
>
> Yet the resulting file is actually a bit larger and still contains all
> the commercials.
>
> -rw-r--r-- 1 mythtv mythtv 4855830532 Feb 14 08:17
> /tv2/record/2401_20090203210100.mpg.tmp
>
> I'm using 0.21-fixes and this particular file is a 720p ATSC recording.
> I have also had the same problem on a 1080i ATSC recording.  I have both
> a HDHR and a pcHDTV 3000 tuner and could not tell you from which tuner
> these were recorded (if it matters).  I have not tried with any
> recordings captured via S-Video in on my PVR-250.



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