[FFmpeg-devel] [PATCH 1/2] avcodec/apedec: move 'coeffs[256] and delay[256]' into, long_filter_high_3800

[zhaoxiu.zeng]

>From b6ab794e41c549509c3e2aad30c0fc67726dbd56 Mon Sep 17 00:00:00 2001
From: Zeng Zhaoxiu <zhaoxiu.zeng at gmail.com>
Date: Sat, 14 Feb 2015 00:33:32 +0800
Subject: [PATCH 1/2] avcodec/apedec: move 'coeffs[256] and delay[256]' into
 long_filter_high_3800

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng at gmail.com>
---
 libavcodec/apedec.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c
index 383b7fe..f1ddf80 100644
--- a/libavcodec/apedec.c
+++ b/libavcodec/apedec.c
@@ -899,11 +899,11 @@ static av_always_inline int filter_3800(APEPredictor *p,
     return p->filterA[filter];
 }
 
-static void long_filter_high_3800(int32_t *buffer, int order, int shift,
-                                  int32_t *coeffs, int32_t *delay, int length)
+static void long_filter_high_3800(int32_t *buffer, int order, int shift, int length)
 {
     int i, j;
     int32_t dotprod, sign;
+    int32_t coeffs[256], delay[256];
 
     memset(coeffs, 0, order * sizeof(*coeffs));
     for (i = 0; i < order; i++)
@@ -947,13 +947,12 @@ static void predictor_decode_stereo_3800(APEContext *ctx, int count)
     APEPredictor *p = &ctx->predictor;
     int32_t *decoded0 = ctx->decoded[0];
     int32_t *decoded1 = ctx->decoded[1];
-    int32_t coeffs[256], delay[256];
     int start = 4, shift = 10;
 
     if (ctx->compression_level == COMPRESSION_LEVEL_HIGH) {
         start = 16;
-        long_filter_high_3800(decoded0, 16, 9, coeffs, delay, count);
-        long_filter_high_3800(decoded1, 16, 9, coeffs, delay, count);
+        long_filter_high_3800(decoded0, 16, 9, count);
+        long_filter_high_3800(decoded1, 16, 9, count);
     } else if (ctx->compression_level == COMPRESSION_LEVEL_EXTRA_HIGH) {
         int order = 128, shift2 = 11;
 
@@ -965,8 +964,8 @@ static void predictor_decode_stereo_3800(APEContext *ctx, int count)
             long_filter_ehigh_3830(decoded1 + order, count - order);
         }
         start = order;
-        long_filter_high_3800(decoded0, order, shift2, coeffs, delay, count);
-        long_filter_high_3800(decoded1, order, shift2, coeffs, delay, count);
+        long_filter_high_3800(decoded0, order, shift2, count);
+        long_filter_high_3800(decoded1, order, shift2, count);
     }
 
     while (count--) {
@@ -1002,12 +1001,11 @@ static void predictor_decode_mono_3800(APEContext *ctx, int count)
 {
     APEPredictor *p = &ctx->predictor;
     int32_t *decoded0 = ctx->decoded[0];
-    int32_t coeffs[256], delay[256];
     int start = 4, shift = 10;
 
     if (ctx->compression_level == COMPRESSION_LEVEL_HIGH) {
         start = 16;
-        long_filter_high_3800(decoded0, 16, 9, coeffs, delay, count);
+        long_filter_high_3800(decoded0, 16, 9, count);
     } else if (ctx->compression_level == COMPRESSION_LEVEL_EXTRA_HIGH) {
         int order = 128, shift2 = 11;
 
@@ -1018,7 +1016,7 @@ static void predictor_decode_mono_3800(APEContext *ctx, int count)
             long_filter_ehigh_3830(decoded0 + order, count - order);
         }
         start = order;
-        long_filter_high_3800(decoded0, order, shift2, coeffs, delay, count);
+        long_filter_high_3800(decoded0, order, shift2, count);
     }
 
     while (count--) {
-- 
2.1.0