vf_lavfi: add libavfilter bridge

Requires recent FFmpeg/Libav git versions. Earlier versions will not
be supported, as the API is different. (A libavfilter version that
uses AVFrame instead of AVFilterBuffer is needed.)

Note that this is sort of useless, because the option parser prevents
you from making use of the full libavfilter graph syntax. This has to be
fixed later.

Most of the filter creation code (half of the config() function) has
been taken from avplay.c.

This code is not based on MPlayer's vf_lavfi. The MPlayer code doesn't
compile as it hasn't been updated through multiple libavfilter API
changes, making it completely useless as a starting point.

1 files changed, 2 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 6cd62d1bf3..421f243d61 100644
--- a/Makefile
+++ b/Makefile
@@ -117,6 +117,8 @@ SOURCES-$(VDPAU)                += video/out/vo_vdpau.c
 SOURCES-$(X11)                  += video/out/vo_x11.c video/out/x11_common.c
 SOURCES-$(XV)                   += video/out/vo_xv.c
 
+SOURCES-$(VF_LAVFI)             += video/filter/vf_lavfi.c
+
 ifeq ($(HAVE_AVUTIL_REFCOUNTING),no)
     SOURCES-yes                 += video/decode/lavc_dr1.c
 endif