516ea8460b
Use the fast quantizer for inter mode selection and the regular quantizer for the rest of the encode for good quality, speed 1. Both performance and quality were improved. The quality gains will make up for the quality loss mentioned in I9dc089007ca08129fb6c11fe7692777ebb8647b0. Change-Id: Ia90bc9cf326a7c65d60d31fa32f6465ab6984d21
81 lines
2.5 KiB
C
81 lines
2.5 KiB
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 <math.h>
|
|
#include "vpx_mem/vpx_mem.h"
|
|
|
|
#include "quantize.h"
|
|
#include "entropy.h"
|
|
#include "predictdc.h"
|
|
|
|
DECLARE_ALIGNED(16, const short, vp8_rvsplus1_default_zig_zag1d[16]) =
|
|
{
|
|
1, 2, 6, 7,
|
|
3, 5, 8, 13,
|
|
4, 9, 12, 14,
|
|
10, 11, 15, 16,
|
|
};
|
|
|
|
|
|
extern int vp8_fast_quantize_b_neon_func(short *coeff_ptr, short *zbin_ptr, short *qcoeff_ptr, short *dqcoeff_ptr, short *dequant_ptr, const short *scan_mask, short *round_ptr, short *quant_ptr);
|
|
|
|
void vp8_fast_quantize_b_neon(BLOCK *b, BLOCKD *d)
|
|
{
|
|
d->eob = vp8_fast_quantize_b_neon_func(b->coeff, b->zbin, d->qcoeff, d->dqcoeff, d->dequant, vp8_rvsplus1_default_zig_zag1d, b->round, b->quant_fast);
|
|
}
|
|
|
|
/*
|
|
//neon code is written according to the following rewritten c code
|
|
void vp8_fast_quantize_b_neon(BLOCK *b,BLOCKD *d)
|
|
{
|
|
int i, rc, eob;
|
|
int zbin;
|
|
int x, x1, y, z, sz;
|
|
short *coeff_ptr = &b->Coeff[0];
|
|
short *zbin_ptr = &b->Zbin[0][0];
|
|
short *round_ptr = &b->Round[0][0];
|
|
short *quant_ptr = &b->Quant[0][0];
|
|
short *qcoeff_ptr = d->qcoeff;
|
|
short *dqcoeff_ptr= d->dqcoeff;
|
|
short *dequant_ptr= &d->Dequant[0][0];
|
|
|
|
eob = 0;
|
|
|
|
for(i=0;i<16;i++)
|
|
{
|
|
z = coeff_ptr[i];
|
|
zbin = zbin_ptr[i] ;
|
|
x = abs(z); // x = abs(z)
|
|
|
|
if(x>=zbin)
|
|
{
|
|
sz = (z>>31); // sign of z
|
|
y = ((x+round_ptr[i])*quant_ptr[i])>>16; // quantize (x)
|
|
x1 = (y^sz) - sz; // get the sign back
|
|
|
|
qcoeff_ptr[i] = x1; // write to destination
|
|
dqcoeff_ptr[i] = x1 * dequant_ptr[i]; // dequantized value
|
|
|
|
if(y)
|
|
{
|
|
if(eob<vp8_rvsplus1_default_zig_zag1d[i])
|
|
eob=(int)vp8_rvsplus1_default_zig_zag1d[i]; // last nonzero coeffs
|
|
}
|
|
}else
|
|
{
|
|
qcoeff_ptr[i] = 0; // write to destination
|
|
dqcoeff_ptr[i] = 0; // dequantized value
|
|
}
|
|
}
|
|
d->eob = eob;
|
|
}
|
|
*/
|