#8366: Audio ticks and video/audio out-of-sync when using MXF files with pre-
charge
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Reporter: HenkDemper | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: MXF | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by HenkDemper):
@ngaullie
> If I dare add a related use case : when stream-copying, you may expect
the precharge/postroll to be reported as a new precharge/postroll in the
output wrapper (actual mxf precharge or mov editlist)
Correct, when not re-encoding video pre-charge figures would need to be
preserved (or adjusted depending if you specify an offset when copying)
between any combination of MOV/MXF wrapper. It is not that simple, see the
attachment 'Rewrap with PreCharge and/or RollOut.pdf' that is part of this
ticket for a bit of clarification (taken from our own non-ffmpeg
implementation of a rewrapper that does that).
@Tjoppen and @cehoyos
Do I understand correct from your replies that -given that by no means I
have knowledge of the internals of ffplay/fftools etc- to solve this issue
is not going to be 'an easy one' and I should adjust my expectations for
any quick fix (if ever) accordingly ?
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8366#comment:15>
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