lavfi: add a preinit callback to filters.
authorNicolas George <george@nsup.org>
Sun, 30 Jul 2017 22:29:01 +0000 (00:29 +0200)
committerNicolas George <george@nsup.org>
Tue, 29 Aug 2017 08:19:04 +0000 (10:19 +0200)
commitf8d7b5febba075035a94de5d7d1dc9083ad2f3ed
tree146cee9da69a3c8dfb9e6261a69109bbf53e0b54
parent19804024d5b26e9568ce2f21f15c6664717006cd
lavfi: add a preinit callback to filters.

It is necessary for filters with child objects, to set the class
and default options values.
libavfilter/avfilter.c
libavfilter/avfilter.h