From f73947f41da6dcd68e8f5f72a14d001e92b877ed Mon Sep 17 00:00:00 2001
From: Pascal Massimino <pascal.massimino@gmail.com>
Date: Sun, 29 Jan 2012 17:38:37 -0800
Subject: [PATCH] use 32bit for storing dequant coeffs, instead of 16b.

is a tad faster

Change-Id: Ibef8f3b4f3f04a9a647098e5946f616e211a61cd
---
 src/dec/vp8.c  | 2 +-
 src/dec/vp8i.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/dec/vp8.c b/src/dec/vp8.c
index e59d4115..843583e1 100644
--- a/src/dec/vp8.c
+++ b/src/dec/vp8.c
@@ -460,7 +460,7 @@ typedef const uint8_t (*ProbaArray)[NUM_CTX][NUM_PROBAS];  // for const-casting
 // Returns the position of the last non-zero coeff plus one
 // (and 0 if there's no coeff at all)
 static int GetCoeffs(VP8BitReader* const br, ProbaArray prob,
-                     int ctx, const uint16_t dq[2], int n, int16_t* out) {
+                     int ctx, const quant_t dq, int n, int16_t* out) {
   const uint8_t* p = prob[kBands[n]][ctx];
   if (!VP8GetBit(br, p[0])) {   // first EOB is more a 'CBP' bit.
     return 0;
diff --git a/src/dec/vp8i.h b/src/dec/vp8i.h
index 5201b219..871451e1 100644
--- a/src/dec/vp8i.h
+++ b/src/dec/vp8i.h
@@ -162,8 +162,9 @@ typedef struct {  // used for syntax-parsing
 } VP8MB;
 
 // Dequantization matrices
+typedef int quant_t[2];      // [DC / AC].  Can be 'uint16_t[2]' too (~slower).
 typedef struct {
-  uint16_t y1_mat_[2], y2_mat_[2], uv_mat_[2];    // [DC / AC]
+  quant_t y1_mat_, y2_mat_, uv_mat_;
 } VP8QuantMatrix;
 
 // Persistent information needed by the parallel processing