Commit Graph

11 Commits

Author SHA1 Message Date
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