[mythtv-commits] Ticket #12546: Captions not recognized in MP4 recordings

[MythTV]

#12546: Captions not recognized in MP4 recordings
--------------------------------------+--------------------------
     Reporter:  gravityhammer@…       |      Owner:
         Type:  Bug Report - General  |     Status:  new
     Priority:  minor                 |  Milestone:  unknown
    Component:  MythTV - General      |    Version:  Unspecified
     Severity:  medium                |   Keywords:  MP4 captions
Ticket locked:  0                     |
--------------------------------------+--------------------------
 Comcast recently moved to MP4 encoding on many channels here, and Myth is
 unable to recognize that there are captions in the file.  VLC plays the
 captions.

 From mediainfo:
 Text #1
 ID                                       : 4268 (0x10AC)-CC1
 Menu ID                                  : 1 (0x1)
 Format                                   : EIA-608
 Muxing mode                              : SCTE 128 / DTVCC Transport
 Muxing mode, more info                   : Muxed in Video #1
 Duration                                 : 1h 2mn
 Bit rate mode                            : Constant
 Stream size                              : 0.00 Byte (0%)

 Text #2
 ID                                       : 4268 (0x10AC)-1
 Menu ID                                  : 1 (0x1)
 Format                                   : EIA-708
 Muxing mode                              : SCTE 128 / DTVCC Transport
 Muxing mode, more info                   : Muxed in Video #1
 Duration                                 : 1h 2mn
 Bit rate mode                            : Constant
 Stream size                              : 0.00 Byte (0%)

 Text #3
 ID                                       : 4268 (0x10AC)-2
 Menu ID                                  : 1 (0x1)
 Format                                   : EIA-708
 Muxing mode                              : SCTE 128 / DTVCC Transport
 Muxing mode, more info                   : Muxed in Video #1
 Duration                                 : 1h 2mn
 Bit rate mode                            : Constant
 Stream size                              : 0.00 Byte (0%)

 A clip of a problematic recording is here:
 http://www.filetolink.com/4bd9ced67e

 mythbackend --version
 Please attach all output as a file in bug reports.
 MythTV Version : 68e51d6fd4fa25e985b21cb3a5b5ca6fce9aca9d
 MythTV Branch : fixes/0.27
 Network Protocol : 77
 Library API : 0.27.20151025-1
 QT Version : 4.8.5
 Options compiled in:
  linux release use_hidesyms using_alsa using_oss using_backend
 using_bindings_python using_bindings_php using_frontend using_hdhomerun
 using_ceton using_hdpvr using_ivtv using_libcrypto using_libfftw3
 using_libxml2 using_libudf using_mheg using_opengl using_opengl_video
 using_qtwebkit using_qtscript using_qtdbus using_taglib using_v4l2
 using_x11 using_xrandr using_xv using_mythlogserver using_bindings_python
 using_bindings_php using_mythtranscode using_opengl using_vdpau
 using_ffmpeg_threads using_mheg using_libxml2 using_libudf

--
Ticket URL: <https://code.mythtv.org/trac/ticket/12546>
MythTV <http://www.mythtv.org>
MythTV Media Center