[mythtv-commits] Ticket #12010: mythcommflag --rebuild does not re-create good seektables with h264 recordings
MythTV
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Fri Jan 23 11:06:38 UTC 2015
#12010: mythcommflag --rebuild does not re-create good seektables with h264
recordings
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Reporter: J.Pilk@… | Owner: stichnot
Type: Bug Report - General | Status: accepted
Priority: minor | Milestone: unknown
Component: MythTV - Video Decoding | Version: 0.27-fixes
Severity: medium | Resolution:
Keywords: mythcommflag --rebuild h264 | Ticket locked: 0
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Comment (by John Pilkington <J.Pilk@…>):
When I opened this ticket, the problem was that mythcommflag --rebuild in
fixes did not find most of the original keyframes. Recently I've been
running master with the patch attached earlier; I make few HD recordings,
but it has seemed to do the job.
I now find that in current builds of 0.27-fixes almost all of the original
keyframes are found, at the same byte-offsets, but the frame-numbers and
timestamps drift gradually away from their original values; over a 1-hour
recording the rebuilt table shows 48 fewer frames and a duration 1920 ms
less.
wc -l *.xml shows 6487 lines originally, 6478 after the rebuild. It looks
as if keyframe detection has been fixed somehow, but frame counting is -
literally - adrift.
This was a DVB-T2 recording from BBC FOUR HD
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Ticket URL: <https://code.mythtv.org/trac/ticket/12010#comment:9>
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