[mythtv-users] Channel scanner won't find a specific channel

[HP-mini]

On Sat, 2016-02-06 at 22:27 +0000, John Pilkington wrote:
> A bit more info:
> 
> ionice -c3 mythtranscode -m --video -i WFXVsample1.mpg -o 
> WFXVsample1_mtr.mpg
> 
> A few complaints in the log (below) and no mention of text or 
> unidentified streams.
> 
> Both play smoothly as videos in 0.28-beta, but with stuff like this:
> 
> 2016-02-06 22:19:38.945840 I  AFD: Key frame distance changed from 12 to 30.
> 2016-02-06 22:19:40.152658 I  AFD: Key frame distance changed from 30 to 12.
> 2016-02-06 22:19:40.648977 I  AFD: Key frame distance changed from 12 to 30.
> 2016-02-06 22:19:40.850891 I  AFD: Key frame distance changed from 30 to 12.
> 2016-02-06 22:19:41.346665 I  AFD: Key frame distance changed from 12 to 30.
> 2016-02-06 22:19:42.472599 I  Player(1): FPS:   59.82 Mean: 16717 
> Std.Dev:  5783 CPUs: 22% 24%
> 
> 
> 
> 2016-02-06 21:43:32.058930 N  Transcoding from 
> /home/john/SGs/VideosSG1/WFXVsample1.mpg to WFXVsample1_mtr.mpg
> 2016-02-06 21:43:32.061479 I  Opening 
> /home/john/SGs/VideosSG1/WFXVsample1.mpg
> 2016-02-06 21:43:32.294504 I  PES packet size mismatch
> 2016-02-06 21:43:32.301206 I  Input #0, mpegts, from 
> '/home/john/SGs/VideosSG1/WFXVsample1.mpg':
> 2016-02-06 21:43:32.301222 I    Duration: 00:00:54.50, start: 
> 17800.699322, bitrate: 15030 kb/s
> 2016-02-06 21:43:32.301363 I      Stream #0:0[0x6f]: Video: mpeg2video 
> (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 14950 kb/s, 59.94 
> fps, 59.94 tbr, 90k tbn, 119.88 tbc
> 2016-02-06 21:43:32.301396 I      Stream #0:1[0x70](eng): Audio: ac3, 
> 48000 Hz, 5.1(side), fltp, 384 kb/s
> 2016-02-06 21:43:32.301420 I      Stream #0:2[0x71](spa): Audio: ac3, 
> 48000 Hz, stereo, fltp, 192 kb/s
> 2016-02-06 21:43:32.317029 I  #0 PTS:04:56:41.131 Delta: 0.0ms queue: 38
> 2016-02-06 21:43:32.317060 I  #1 PTS:04:56:41.115 Delta: 15.8556ms queue: 2
> 2016-02-06 21:43:32.317074 I  #2 PTS:04:56:41.100 Delta: 31.1222ms queue: 4
> 2016-02-06 21:43:32.317107 N  MPEG2fixup::InitReplex(): High Definition 
> input, increasing replex buffers
> 2016-02-06 21:43:32.343413 I  Mux rate: 15.78 Mbit/s
> 2016-02-06 21:43:33.479178 I  AVFrame.format is not set
> 2016-02-06 21:43:33.479186 I  AVFrame.width or height is not set
> 2016-02-06 21:43:33.481505 I  AVFrame.format is not set
> 2016-02-06 21:43:33.481514 I  AVFrame.width or height is not set
> 2016-02-06 21:43:33.526941 I  Inserting 0 I-Frames after #26
> 2016-02-06 21:43:34.051092 I  PES packet size mismatch
> 2016-02-06 21:43:34.051111 I  PES packet size mismatch
> 2016-02-06 21:43:34.067022 I  Generating Keyframe Index
> 2016-02-06 21:43:34.067036 I  Opening WFXVsample1_mtr.mpg
> 2016-02-06 21:43:34.104892 I  Input #0, mpeg, from 'WFXVsample1_mtr.mpg':
> 2016-02-06 21:43:34.104910 I    Duration: 00:00:54.10, start: 0.360000, 
> bitrate: 14930 kb/s
> 2016-02-06 21:43:34.104972 I      Stream #0:0[0x1e0]: Video: mpeg2video 
> (Main), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], max. 14950 kb/s, 59.94 
> fps, 59.94 tbr, 90k tbn, 119.88 tbc
> 2016-02-06 21:43:34.104998 I      Stream #0:1[0x81]: Audio: ac3, 48000 
> Hz, stereo, fltp, 192 kb/s
> 2016-02-06 21:43:34.105019 I      Stream #0:2[0x80]: Audio: ac3, 48000 
> Hz, 5.1(side), fltp, 384 kb/s
> 2016-02-06 21:43:34.308263 N  Transcode Completed
> 2016-02-06 21:43:34.335123 N  Transcoding 
> /home/john/SGs/VideosSG1/WFXVsample1.mpg done
> 

That 60p sample plays fine here (Videos) in master with ffmpeg CPU &
VDPAU.
I did not try the file with dummy recorder.
I noticed that the OP was using ffmpeg CPU decode.
CPU decode here uses 35% on mid-range core2duo, no jitter problems (OSD
playback meter).