[mythtv-commits] Ticket #9854: ISO playback problems

MythTV noreply at mythtv.org
Thu Jun 16 17:09:42 UTC 2011


#9854: ISO playback problems
-------------------------------------------------+-------------------------
     Reporter:  Jim Stichnoth <stichnot@…>       |      Owner:  janne
         Type:  Bug Report - General             |     Status:  new
     Priority:  minor                            |  Milestone:  unknown
    Component:  MythTV - Video Playback          |    Version:  Trunk Head
     Severity:  medium                           |   Keywords:
Ticket locked:  0                                |
-------------------------------------------------+-------------------------
 I recently observe 3 problems when playing ISO DVD rips.

 1. Widescreen videos (16x9) switch to 4x3 aspect ratio at some point,
 which seems to be repeatable.  I suspect it happens when a subtitle shows
 up in the stream.  See attached mythfrontend1.log output for clues.  This
 happens with Slim and VDPAU Normal profiles.  One can "fix" this by
 selecting H.Stretch from the Adjust Fill menu.

 2. ISOs with several titles take a long time to start up, and also to jump
 to the main menu.  See attached mythfrontend2.log output, where the time
 between 06:55:32 and 06:56:08 (36 seconds) is spent on the "Please
 Wait...." screen.

 3. Jumping within an ISO video sometimes has accuracy problems.  For
 example, pressing "50i" to jump to the 50-minute mark may jump to the
 46-minute point (but a subsequent "50i" usually jumps to the right point).
 This is unpredictable and often happens only during the first jump (if it
 happens at all).  This is especially unfortunate when it happens as a
 result of the initial bookmark seek when playback starts.  Through
 experimentation, this seems to be a problem seeking to the desired frame,
 and not a problem converting between frame number and elapsed time.

 {{{
 MythTV Version : v0.25pre-2327-g305ef56-dirty
 MythTV Branch : master
 Network Protocol : 66
 Library API : 0.25.20110607-2
 QT Version : 4.6.2
 Options compiled in:
  linux release use_hidesyms using_alsa using_jack using_oss using_pulse
 using_pu
 lseoutput using_backend using_bindings_perl using_bindings_python
 using_bindings
 _php using_dvb using_firewire using_frontend using_hdhomerun using_hdpvr
 using_i
 ptv using_ivtv using_joystick_menu using_lirc using_mheg
 using_opengl_video usin
 g_qtdbus using_qtwebkit using_v4l2 using_v4l1 using_x11 using_xrandr
 using_xv us
 ing_bindings_perl using_bindings_python using_bindings_php
 using_mythtranscode u
 sing_opengl using_vdpau using_ffmpeg_threads using_live using_mheg
 }}}

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Ticket URL: <http://code.mythtv.org/trac/ticket/9854>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center


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