remove unused vp8_predict_dc function

Change-Id: I64fa47889c54cfed094a674c49ef0996d49bdd42

vp8/common/predictdc.c

-/*
- *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-
-#include <stdlib.h>
-#include "blockd.h"
-
-
-void vp8_predict_dc(short *lastdc, short *thisdc, short quant, short *cons)
-{
-    int diff;
-    int sign;
-    int last_dc = *lastdc;
-    int this_dc = *thisdc;
-
-    if (*cons  > DCPREDCNTTHRESH)
-    {
-        this_dc += last_dc;
-    }
-
-    diff = abs(last_dc - this_dc);
-    sign  = (last_dc >> 31) ^(this_dc >> 31);
-    sign |= (!last_dc | !this_dc);
-
-    if (sign)
-    {
-        *cons = 0;
-    }
-    else
-    {
-        if (diff <= DCPREDSIMTHRESH * quant)
-            (*cons)++ ;
-    }
-
-    *thisdc = this_dc;
-    *lastdc = this_dc;
-}

vp8/common/predictdc.h

-/*
- *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-
-#ifndef __PREDICTDC_H
-#define __PREDICTDC_H
-
-void uvvp8_predict_dc(short *lastdc, short *thisdc, short quant, short *cons);
-void vp8_predict_dc(short *lastdc, short *thisdc, short quant, short *cons);
-
-#endif

vp8/decoder/arm/dequantize_arm.c

@@ -11,7 +11,6 @@
 
 #include "vpx_ports/config.h"
 #include "vp8/decoder/dequantize.h"
-#include "vp8/common/predictdc.h"
 #include "vp8/common/idct.h"
 #include "vpx_mem/vpx_mem.h"
 

vp8/decoder/decodframe.c

@@ -30,7 +30,6 @@
 #include "vpx_mem/vpx_mem.h"
 #include "vp8/common/idct.h"
 #include "dequantize.h"
-#include "vp8/common/predictdc.h"
 #include "vp8/common/threading.h"
 #include "decoderthreading.h"
 #include "dboolhuff.h"

vp8/decoder/dequantize.c

@@ -11,7 +11,6 @@
 
 #include "vpx_ports/config.h"
 #include "dequantize.h"
-#include "vp8/common/predictdc.h"
 #include "vp8/common/idct.h"
 #include "vpx_mem/vpx_mem.h"
 

vp8/encoder/arm/quantize_arm.c

@@ -14,7 +14,6 @@
 
 #include "vp8/encoder/quantize.h"
 #include "vp8/common/entropy.h"
-#include "vp8/common/predictdc.h"
 
 DECLARE_ALIGNED(16, const short, vp8_rvsplus1_default_zig_zag1d[16]) =
 {

vp8/encoder/quantize.c

@@ -14,7 +14,6 @@
 
 #include "quantize.h"
 #include "vp8/common/entropy.h"
-#include "vp8/common/predictdc.h"
 
 #define EXACT_QUANT
 

vp8/vp8_common.mk

@@ -45,7 +45,6 @@ VP8_COMMON_SRCS-yes += common/loopfilter.h
 VP8_COMMON_SRCS-yes += common/modecont.h
 VP8_COMMON_SRCS-yes += common/mv.h
 VP8_COMMON_SRCS-yes += common/onyxc_int.h
-VP8_COMMON_SRCS-yes += common/predictdc.h
 VP8_COMMON_SRCS-yes += common/quant_common.h
 VP8_COMMON_SRCS-yes += common/recon.h
 VP8_COMMON_SRCS-yes += common/reconinter.h
@@ -63,7 +62,6 @@ VP8_COMMON_SRCS-yes += common/loopfilter_filters.c
 VP8_COMMON_SRCS-yes += common/mbpitch.c
 VP8_COMMON_SRCS-yes += common/modecont.c
 VP8_COMMON_SRCS-yes += common/modecontext.c
-VP8_COMMON_SRCS-yes += common/predictdc.c
 VP8_COMMON_SRCS-yes += common/quant_common.c
 VP8_COMMON_SRCS-yes += common/recon.c
 VP8_COMMON_SRCS-yes += common/reconinter.c