From: Nicolas George <george@nsup.org>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 3/4] lavfi/framesync: add syncing via external timestamp map
Date: Fri, 27 Jan 2023 15:53:42 +0100
Message-ID: <Y9Pldte5IgbVkWWa@phare.normalesup.org> (raw)
In-Reply-To: <20230127131639.4928-3-anton@khirnov.net>
Anton Khirnov (12023-01-27):
> Useful when there is some external process that determines canonical
> frame synchronization. E.g. the framerate conversion code in ffmpeg CLI.
> ---
> doc/filters.texi | 6 ++
> libavfilter/framesync.c | 121 ++++++++++++++++++++++++++++++++++++++--
> libavfilter/framesync.h | 11 ++++
> 3 files changed, 132 insertions(+), 6 deletions(-)
I agree with Paul, this looks like an instance of a XY problem
<https://en.wikipedia.org/wiki/XY_problem>.
framesync generates output based on its input. Therefore to force
timestamps on output frames you need to force timestamps on input
frames.
And serializing timestamps in decimal in a giant string with newlines in
it: definitely no.
--
Nicolas George
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next prev parent reply other threads:[~2023-01-27 14:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-27 13:16 [FFmpeg-devel] [PATCH 1/4] lavfi/framesync: use a local variable to shorten code Anton Khirnov
2023-01-27 13:16 ` [FFmpeg-devel] [PATCH 2/4] lavfi/framesync: reorder functions to avoid a forward declaration Anton Khirnov
2023-01-27 14:47 ` Nicolas George
2023-01-27 13:16 ` [FFmpeg-devel] [PATCH 3/4] lavfi/framesync: add syncing via external timestamp map Anton Khirnov
2023-01-27 13:22 ` Paul B Mahol
2023-01-27 14:53 ` Nicolas George [this message]
2023-01-27 16:45 ` Anton Khirnov
2023-01-30 11:01 ` Nicolas George
2023-01-27 13:16 ` [FFmpeg-devel] [PATCH 4/4] lavfi/framesync: reindent after previous commit Anton Khirnov
2023-01-27 14:39 ` [FFmpeg-devel] [PATCH 1/4] lavfi/framesync: use a local variable to shorten code Nicolas George
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