[Mplayer-cvslog] CVS: main/DOCS/tech libavc-options.txt,1.26,1.27

[Michael Niedermayer CVS]

Update of /cvsroot/mplayer/main/DOCS/tech
In directory mail:/var/tmp.root/cvs-serv14137

Modified Files:
	libavc-options.txt 
Log Message:
lavc motion estimation update


Index: libavc-options.txt
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/tech/libavc-options.txt,v
retrieving revision 1.26
retrieving revision 1.27
diff -u -r1.26 -r1.27
--- libavc-options.txt	18 Dec 2002 10:50:56 -0000	1.26
+++ libavc-options.txt	28 Dec 2002 00:23:26 -0000	1.27
@@ -48,7 +48,7 @@
 	2 log   (not recommanded, lq)
 	3 phods (not recommanded, lq)
 	4 EPZS  (default)
-	5 X1
+	5 X1    (experimantal, might change from time to time or be just broken)
 
 vhq (high quality mode)
 	encode each MB as in all modes and choose the best (this is slow but
@@ -58,7 +58,6 @@
 v4mv
 	allow 4 MV per MB (little difference in filesize/quality)
 	disabled by default
-	cannot be used with B frames (should now work in lq mode)
 
 keyint  0-300 (maximum interval between keyframes)
 	keyframes are needed for seeking as seeking is only possible to a
@@ -272,6 +271,20 @@
         1 plane/gradient prediction
         2 median prediction
  
+qpel	use quarter pel motion compensation
+	Tip: this seems only usefull for high bitrate encodings
+
+cmp	comparission function for full pel motion estimation
+subcmp	comparission function for sub pel motion estimation
+	0 SAD (sum of absolute differences) (default)
+        1 SSE (sum of squared errors)
+        2 SATD (sum of absolute hadamard transformed differences)
+        3 DCT (sum of absolute dct transformed differences)
+        4 PSNR (sum of the squared quantization errors)
+        7 ZERO (0)
+        +256 (use chroma too, doesnt work with b frames currently)
+        Tip: SAD is fast, SATD is good
+
 lavdopts: (decoder options)
 ---------------------------