From c047d8b1dfad8f3d991ea9d946324568d19692a6 Mon Sep 17 00:00:00 2001
From: michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 9 Jun 2002 02:23:06 +0000
Subject: [PATCH] software scaler filter docs

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6349 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 DOCS/tech/swscaler_filters.txt | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 DOCS/tech/swscaler_filters.txt

diff --git a/DOCS/tech/swscaler_filters.txt b/DOCS/tech/swscaler_filters.txt
new file mode 100644
index 0000000000..5b10f97350
--- /dev/null
+++ b/DOCS/tech/swscaler_filters.txt
@@ -0,0 +1,19 @@
+software scaler filter docs
+
+-ssf cgb=<float> chrominance gaussian blur
+	usefull for videos with some chroma (color) noise (TV captures, VHS, ...)
+
+-ssf lgb=<float> -> luminance gaussian blur
+	hmm, mostly special effect, could be used as lame noise reducer though
+
+-ssf chs=<int> -> shift chrominance horizontally
+-ssf cvs=<int> -> shift chrominance vertically
+	usefull if the luma & chroma are not aligned exactly
+
+-ssf cs=<float> -> chrominance sharpen
+-ssf ls=<float> -> luminance sharpen
+	simple sharpening filter
+
+note: these will only work if the swscaler is used at all (use -vop scale)
+
+example: mplayer foobar.avi -vop scale -ssf lgb=3.0