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

[MythTV]

#9854: ISO playback problems
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 Reporter:  Jim Stichnoth <stichnot@…>          |          Owner:  markk
     Type:  Bug Report - General                |         Status:  accepted
 Priority:  minor                               |      Milestone:  0.25
Component:  MythTV - Video Playback             |        Version:  Trunk
 Severity:  medium                              |  Head
 Keywords:                                      |     Resolution:
                                                |  Ticket locked:  0
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Comment (by Jim Stichnoth <stichnot@…>):

 Replying to [comment:5 markk]:
 > > 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.
 >
 > Does this happen spontaneously while watching a sequence? or does it
 happen after jumping to a chapter or manually skipping?

 Spontaneously.  See a 20MB excerpt of Aladdin (1992) at
 https://docs.google.com/leaf?id=0BxETmfuHvGPQNWRiNzBhYjAtNjBlZC00NWE5LTkyMjctYzZjY2ZjYmVkNjk1&sort=name&layout=list&num=50
 .  The aspect ratio changes at the 29-second mark, just before the first
 caption/subtitle is displayed.  Same behavior with or without storage
 groups.

 > > 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.
 >
 > I can't reproduce this - can you try and narrow down the circumstances
 which trigger it?

 OK, I was afraid of this.  I'll open a new ticket when I find out more.

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Ticket URL: <http://code.mythtv.org/trac/ticket/9854#comment:6>
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