[mythtv-commits] Ticket #8848: Realtime commercial detection fails for some QAM channels

MythTV mythtv at cvs.mythtv.org
Wed Sep 1 15:20:18 UTC 2010

#8848: Realtime commercial detection fails for some QAM channels
     Reporter:  dlinvill@…             |       Owner:  cpinkham           
         Type:  defect                 |      Status:  new                
     Priority:  minor                  |   Milestone:  unknown            
    Component:  MythTV - Mythcommflag  |     Version:  Unspecified        
     Severity:  medium                 |    Keywords:  commflag commercial
Ticket locked:  0                      |  
 For some QAM channels commercial detection during the recording appears to
 hand in the logo detection phase and once the recording completes reports
 0 commercial breaks detected.  Rerunning a flag commercials job against
 the recording will run successfully and find the correct number of

 I believe this is most likely the special case mentioned in this post:

 These problems appeared when I switched from analog PVR150 recordings to
 QAM over an HDHomerun.  The FPS mismatch example seems to match what I am
 seeing.  I do not see segfaults on mythcommflag.

 I have set recordings to not commercial detect during recording and the 0
 commercials detected stopped happening.  This only happens while recording
 and only on specific channels.  I am able to reproduce this fairly easily
 by scheduling a recording on those channels.

 I have commercial detection during recordings selected in mythtv-setup.  I
 have configured recordings to start 5 seconds early with the system wide

 I'm using mythbuntu 0.23.1-fixes
 Please attach all output as a file in bug reports.
 MythTV Version   : 26006
 MythTV Branch    : branches/release-0-23-fixes
 Network Protocol : 23056
 Library API      :
 QT Version       : 4.6.2
 Options compiled in:
  linux debug using_oss using_alsa using_pulse using_jack using_pulseoutput
 using_backend using_dvb using_firewire using_frontend
 using_glx_proc_addr_arb using_hdhomerun using_hdpvr using_iptv using_ivtv
 using_joystick_menu using_libudev using_lirc using_mheg using_opengl_video
 using_opengl_vsync using_qtdbus using_qtwebkit using_v4l using_x11
 using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw
 using_bindings_perl using_bindings_python using_opengl using_vdpau
 using_ffmpeg_threads using_libavc_5_3 using_live using_mheg

Ticket URL: <http://svn.mythtv.org/trac/ticket/8848>
MythTV <http://www.mythtv.org/>

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