[mythtv-commits] Ticket #7964: Predictively skip frames to smooth out timestretch

[MythTV]

#7964: Predictively skip frames to smooth out timestretch
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 Reporter:  jppoet@…                 |          Owner:  tralph
     Type:  enhancement              |         Status:  closed
 Priority:  minor                    |      Milestone:  0.25
Component:  MythTV - Video Playback  |        Version:  head
 Severity:  medium                   |     Resolution:  Fixed
 Keywords:  timestretch playback     |  Ticket locked:  0
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Comment (by Taylor Ralph):

 Comments by Mark Spieth:
 "Due to the fact that refresh rate is the fundamental output timing rate,
 not the input rate which can be anything. The av_sync adjustment needs to
 be with respect to the resfresh rate and not frame interval. However, no
 real proof that this is any better or worse but just IMO more logically
 correct and consistent."

 "avsync_used is the minimum of the delayed estimate and the current value
 of avsync (with the delay from last vsync event included). This improves
 lock time as the smallest value is the better one to use just in case the
 instantaneous value deviates from the steady state. Also speeds up initial
 lock time as avdel is 0 initially."

 Refs #7964.
  Changeset: 956b4f277fa23d8d8fc98b82f0911da642b18305

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Ticket URL: <http://code.mythtv.org/trac/ticket/7964#comment:32>
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