lavfi: add histeq filter

This is a port of virtual dub's histogram equalization filter by Donald
A. Graft. Based on the work by Jérémy Tran <tran.jeremy.av@gmail.com>,
done for SOCIS 2012.

1 files changed, 1 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
index 2f5076b5e5..9665a2472a 100644
--- a/LICENSE
+++ b/LICENSE
@@ -31,6 +31,7 @@ Specifically, the GPL parts of FFmpeg are
     - vf_decimate.c
     - vf_delogo.c
     - vf_geq.c
+    - vf_histeq.c
     - vf_hqdn3d.c
     - vf_hue.c
     - vf_kerndeint.c