[x265] [PATCH] ratecontrol params: documentation for rateTolerance

[deepthi at multicorewareinc.com]

# HG changeset patch
# User Deepthi Nandakumar <deepthi at multicorewareinc.com>
# Date 1386324426 -19800
# Node ID 49288da0ee3ee85c3f92f16edd4f2a986012df50
# Parent  608874dc84ab35c51a4d288146d606e2ba3fa414
ratecontrol params: documentation for rateTolerance

diff -r 608874dc84ab -r 49288da0ee3e source/x265.h
--- a/source/x265.h	Fri Dec 06 15:26:30 2013 +0530
+++ b/source/x265.h	Fri Dec 06 15:37:06 2013 +0530
@@ -581,7 +581,11 @@
          * bitrate is specified on the command line, ABR is implied. Default 0 */
         int       bitrate;
 
+        /* The degree of rate fluctuation that x265 tolerates. Rate tolerance is used 
+         * alongwith overflow (difference between actual and target bitrate), to adjust
+           qp. Default is 1.0 */
         double    rateTolerance;
+        
         /* qComp sets the quantizer curve compression factor. It weights the frame 
          * quantizer based on the complexity of residual (measured by lookahead). 
          * Default value is 0.6. Increasing it to 1 will effectively generate CQP */