[x265] [PATCH 4 of 6] rc: add 2 pass states in RateControl

[aarthi at multicorewareinc.com]

# HG changeset patch
# User Aarthi Thirumalai<aarthi at multicorewareinc.com>
# Date 1402857908 -19800
#      Mon Jun 16 00:15:08 2014 +0530
# Node ID 9e0a1f70169df85350507de83c27eeae172e7547
# Parent  5c2aee7700a3e222989fadabcb9ba9b1b3291fbd
rc: add 2 pass states in RateControl

diff -r 5c2aee7700a3 -r 9e0a1f70169d source/encoder/ratecontrol.h
--- a/source/encoder/ratecontrol.h	Mon Jun 16 00:04:10 2014 +0530
+++ b/source/encoder/ratecontrol.h	Mon Jun 16 00:15:08 2014 +0530
@@ -137,6 +137,30 @@
     double   m_nominalRemovalTime;
     double   m_prevCpbFinalAT;
 
+    /*2 pass */
+    bool m_2pass;
+    FILE *m_statFileOut;
+    char *m_statFileTmpname;
+    FILE *m_cutreeStatFileOut;
+    char *m_cutreeStatFileTmpname;
+    char *m_cbtreeStatFileName;
+    FILE *m_cutreeStatFileIn;
+
+    struct
+    {
+        uint16_t *qpBuffer[2]; /* Global buffers for converting MB-tree quantizer data. */
+        int qpbufPos;          /* In order to handle pyramid reordering, QP buffer acts as a stack.
+                                * This value is the current position (0 or 1). */
+        int srcCuCount;
+        /* For rescaling */
+        int rescaleEnabled;
+        float *scaleBuffer[2]; /* Intermediate buffers */
+        int filtersize[2];     /* filter size (H/V) */
+        float *coeffs[2];
+        int *pos[2];
+        int srcdim[2];         /* Source dimensions (W/H) */
+    } m_cuTreeStats;
+
     RateControl(x265_param *p);
 
     // to be called for each frame to process RateControl and set QP