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Commit Graph

14 Commits

Author SHA1 Message Date
Niklas Haas
a5032dc12a avfilter/framesync: make framesync_class un-static
And rename to ff_framesync_class. More convenient for downstream users.
2024-05-03 14:23:22 +02:00
Anton Khirnov
08bebeb1be Revert "all: Don't set AVClass.item_name to its default value"
Some callers assume that item_name is always set, so this may be
considered an API break.

This reverts commit 0c6203c97a.
2024-01-20 10:34:48 +01:00
Andreas Rheinhardt
0c6203c97a all: Don't set AVClass.item_name to its default value
Unnecessary since acf63d5350adeae551d412db699f8ca03f7e76b9;
also avoids relocations.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-12-22 15:12:33 +01:00
James Almer
0c3e3fd1b4 avfilter/framesync: add a new option to set how to sync streams based on secondary input timestamps
Include two values for it, a default one that sets/keeps the current behavior,
where the frame event generated by the primary input will have a timestamp
equal or higher than frames in secondary input, plus a new one where the
secondary input frame will be that with the absolute closest timestamp to that
of the frame event one.

Addresses ticket #9689, where the new optional behavior produces better frame
syncronization.

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: James Almer <jamrial@gmail.com>
2022-08-10 09:15:37 -03:00
Andreas Rheinhardt
d6f4b91ba5 avfilter/framesync: Remove redundant setting of AVClass
Every filter exposing the framesync options via its child_next
callback already calls framesync_preinit() in its preinit callback.
So the filter is already preinited whenever its child_next is called.

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-23 21:13:00 +02:00
Andreas Rheinhardt
b368a774dd avfilter/framesync: Separate framesync AVClass and auxiliary functions
Will be useful for deduplication.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-23 21:12:37 +02:00
James Almer
0bf3a7361d avutil: remove deprecated AVClass.child_class_next
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 11:48:04 -03:00
Anton Khirnov
344149cf01 framesync: switch to child_class_iterate() 2020-06-10 12:36:44 +02:00
Mark Thompson
d4d29052c3 lavfi/framesync: Add namespace prefix to framesync_get_class 2018-06-24 19:39:01 +01:00
Nicolas George
9ace76697a lavfi/framesync: document frame ownership for dualinput. 2018-01-03 19:54:39 +01:00
Nicolas George
5f5dcf44e3 lavfi: rename framesync2 to framesync. 2017-09-12 11:03:51 +02:00
Nicolas George
1b8e061cc5 lavfi: remove framesync. 2017-09-12 11:03:51 +02:00
Paul B Mahol
0190c372ef avfilter/framesync: allocate FFFrameSyncIn internally
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-08-26 11:12:23 +00:00
Nicolas George
53319d5c93 lavfi: add an API to synchronize multiple video inputs.
Compared to dualinput, this API can handle more than two
inputs and can generate frames synchronized to any or all
input streams.
2013-09-23 09:49:37 +02:00