[mythtv-users] Preview Images Don't Get Created

Jason Gillis jgillis at acm.org
Wed Aug 10 16:43:17 UTC 2005


Hi,

I recently migrated my master backend from one system to a new one.

Everything seems to be peachy (recordings, viewing, music, etc.), except 
that it doesn't seem to be able to create the preview pixmaps for 
programs recorded on the old backend, or on remote backends.

For files recorded before I migrated the backend, I see the following 
backend logs:
2005-08-10 07:55:04.908 21      OK[]:[]16[]:[]0[]:[]0
2005-08-10 07:55:04.923 369     QUERY_GENPIXMAP[]:[] []:[] []:[] []:[] 
[]:...
2005-08-10 07:55:07.505 2       OK
2005-08-10 07:55:07.513 MainServer::HandleAnnounce FileTransfer
2005-08-10 07:55:07.516 adding: phoenix as a remote file transfer
2005-08-10 07:55:07.518 Local file path: 
/export/mythtv/1035_20040506013000_20040506020000.nuv.png
2005-08-10 07:55:07.520 Could not open 
/export/mythtv/1035_20040506013000_20040506020000.nuv.png.  0 retries 
remaining.

I did hack into the DB and tried setting the hostname in the recorded 
table to my backend's new hostname from the old hostname 
(codeine=>phoenix).  That got different results for the old files:
2005-08-10 07:53:14.679 21      OK[]:[]16[]:[]0[]:[]0
2005-08-10 07:53:14.707 AVFD
2005-08-10 07:53:14.718 AVFD: Opening Stream #0: codec id 2
2005-08-10 07:53:14.720 detectInterlace(Detect Scan, Detect Scan, 29.97, 
480) ->Interlaced Scan
2005-08-10 07:53:14.727 Interlaced: Interlaced Scan  video_height: 480  
fps: 29.97
2005-08-10 07:53:14.728 AVFD: Looking for decoder for 2
2005-08-10 07:53:14.735 AVFD
2005-08-10 07:53:14.737 AVFD: Opening Stream #1: codec id 86016
2005-08-10 07:53:14.739 AVFD: Looking for decoder for 86016
2005-08-10 07:53:14.741 Stream #1 (audio track #0) is an audio stream 
with 2 channels.
2005-08-10 07:53:14.743 Auto-selecting audio track #1 (stream #1).
2005-08-10 07:53:14.745 It has 2 channels and we needed at least 1
2005-08-10 07:53:14.747 Initializing audio parms from audio track #0.
2005-08-10 07:53:14.749 Estimated bitrate = 6384
2005-08-10 07:53:14.752 SyncPositionMap prerecorded, from DB: 0 entries
Input #0, mpeg, from 
'/export/mythtv/1009_20050112030000_20050112050000.nuv':
  Stream #0.0: Video: mpeg2video, 720x480, 29.97 fps, 6000 kb/s
  Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
2005-08-10 07:53:14.762 Commercial Detection initialized: width = 720, 
height = 480, fps = 29.97, method = 1
2005-08-10 07:53:14.764 Using Sample Spacing of 6 horizontal & 4 
vertical pixels.
2005-08-10 07:53:14.766 CommDetect::ClearAllMaps()
2005-08-10 07:53:14.770 Not enough video to make thumbnail
2005-08-10 07:53:14.771 3       BAD
2005-08-10 07:53:14.778 MainServer::HandleAnnounce FileTransfer
2005-08-10 07:53:14.780 adding: phoenix as a remote file transfer
2005-08-10 07:53:14.782 Local file path: 
/export/mythtv/1009_20050112030000_20050112050000.nuv.png
2005-08-10 07:53:14.784 Could not open 
/export/mythtv/1009_20050112030000_20050112050000.nuv.png.  0 retries 
remaining.

For the files that have a hostname of my remote backend/frontend (myth), 
it doesn't even seem to try to create the pixmaps.  I've checked file 
permissions on the directories (/export/mythtv has 0777 permissions), so 
I think that it's not that simple a problem.

Has anyone seen issues with creating the preview images before?

Thanks,
Jason





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