lavfi: add pp filter.

Ported from MPlayer. Original author is A'rpi, with various
contributions from Michael Niedermayer. The original documentation was
mostly written by Diego Biurrun. See the MPlayer history for full
credits.

The filter is under GPL like the original filter, even if it differs
quite a lot. There is not much point in making it LGPL since pp is under
GPL.

1 files changed, 1 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
index a1204f4adb..d083e56777 100644
--- a/LICENSE
+++ b/LICENSE
@@ -34,6 +34,7 @@ Specifically, the GPL parts of FFmpeg are
     - vf_hqdn3d.c
     - vf_hue.c
     - vf_mp.c
+    - vf_pp.c
     - vf_smartblur.c
     - vf_super2xsai.c
     - vf_tinterlace.c