[mythtv-commits] Ticket #13016: Missing Teletext Subtitles in Recordings

MythTV noreply at mythtv.org
Sat Aug 5 14:54:03 UTC 2017


#13016: Missing Teletext Subtitles in Recordings
-----------------------------------------+--------------------------
 Reporter:  angela.schmid@…              |          Owner:  stichnot
     Type:  Bug Report - General         |         Status:  new
 Priority:  minor                        |      Milestone:  unknown
Component:  MythTV - Captions            |        Version:  0.28.1
 Severity:  medium                       |     Resolution:
 Keywords:  teletext subtitles captions  |  Ticket locked:  0
-----------------------------------------+--------------------------

Comment (by weworama@…):

 Hi, I am assuming that as this bug report has not been closed, you are
 still working on it.  Also that the code also applies to CEA 608/708
 subtitles / closed captions on DVB-T recordings.  If either is not the
 case, I can submit another bug specific to DVB-T.

 Our family has noted, in DVB-T recordings, all the same behavior discussed
 in the original thread, although we have not recently noticed the problem
 fixed in your patch.

 In addition, some recordings captions are garbled/strange/poorly
 decoded(?).  I have posted a ~1 minute/ ~150Mb sample file
 http://www.gigasize.com/get/two5x6jrn7b  that shows myth seems to have
 difficulty with 708 captions on recordings.  The two srt files
 (mythccextractor)
 http://www.gigasize.com/get/mbft418ywmc 608 srtfile
 http://www.gigasize.com/get/n005g7b2c0c 708 srt file.

 This problem seems to cascade/include other behaviour, which might be
 related, but I do not yet have a good sample for any of those.

 Wayne


 Current mythtv version info -  although this was recorded with a slightly
 earlier version of myth.

 MythTV Version : v0.28.1-38-geef6a48
 MythTV Branch : fixes/0.28
 Network Protocol : 88
 Library API : 0.28.20161120-1
 QT Version : 5.5.1
 Options compiled in:
 linux profile use_hidesyms using_alsa using_oss using_pulse
 using_pulseoutput using_backend using_bindings_perl using_bindings_python
 using_bindings_php using_crystalhd using_dvb using_firewire using_frontend
 using_hdhomerun using_vbox using_ceton using_hdpvr using_ivtv
 using_joystick_menu using_libcec using_libcrypto using_libdns_sd
 using_libfftw3 using_libxml2 using_lirc using_mheg using_opengl
 using_opengl_video using_opengl_themepainter using_qtwebkit using_qtscript
 using_qtdbus using_sdl using_taglib using_v4l2 using_x11 using_xra
 ndr using_xv using_profiletype using_bindings_perl using_bindings_python
 using_bindings_php using_freetype2 using_mythtranscode using_opengl
 using_vaapi using_vdpau using_ffmpeg_threads using_mheg using_libass
 using_libxml2

 Vlc displays the CEA 608 captions in the original 18+ Gb file, but
 apparently didn’t recognize the presence of the second channel.  The
 posted portion was cut with avidemux, using the mpg ts demuxer as that
 seems to be keeping the extra streams intact.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13016#comment:5>
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