[mythtv-commits] Ticket #13334: Improved Video timing and Synchronization
MythTV
noreply at mythtv.org
Tue Nov 6 15:04:16 UTC 2018
#13334: Improved Video timing and Synchronization
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Reporter: Peter Bennett | Owner: Peter Bennett
Type: Patch - Feature | Status: assigned
Priority: minor | Milestone: 30.0
Component: MythTV - Video Playback | Version: Master Head
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
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Comment (by jpilk):
DVB Radio: I placed editpoints using the non-AVSync2 setting. They
worked, as expected.
With AVSync2, playback in EditMode from those points (with cutlist
inverted when appropriate) starts immediately, but from a position several
seconds later ( ~15 to ~30 s).
The time-and-frame display at the editpoint shows the values as intended.
After start and immediate stop the values shown are updated to those for
the sound being played.
For these recordings the seektable shows a frame duration of 40 ms and
keyframes separated by 8 frames. TTBOMK mythcommflag --rebuild will not
work with a copied file. I suppose the timecodes in use here are embedded
in the data.
Non-AVSync2 skipping is unreliable for skip durations of 1 frame, 1
keyframe and 0.5 s, but otherwise it works.
I don't understand the magic numbers (133466 etc) in
MythPlayer::UpdateFFRewSkip(void)
--
Ticket URL: <https://code.mythtv.org/trac/ticket/13334#comment:14>
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