mirror of https://git.ffmpeg.org/ffmpeg.git
380 lines
17 KiB
C
380 lines
17 KiB
C
/*
|
|
* DSP utils
|
|
* Copyright (c) 2000, 2001 Gerard Lantau.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include "avcodec.h"
|
|
#include "dsputil.h"
|
|
|
|
void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
|
|
void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
|
|
void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
|
|
|
|
op_pixels_abs_func pix_abs16x16;
|
|
op_pixels_abs_func pix_abs16x16_x2;
|
|
op_pixels_abs_func pix_abs16x16_y2;
|
|
op_pixels_abs_func pix_abs16x16_xy2;
|
|
|
|
static UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
|
|
UINT32 squareTbl[512];
|
|
|
|
void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size)
|
|
{
|
|
DCTELEM *p;
|
|
const UINT8 *pix;
|
|
int i;
|
|
|
|
/* read the pixels */
|
|
p = block;
|
|
pix = pixels;
|
|
for(i=0;i<8;i++) {
|
|
p[0] = pix[0];
|
|
p[1] = pix[1];
|
|
p[2] = pix[2];
|
|
p[3] = pix[3];
|
|
p[4] = pix[4];
|
|
p[5] = pix[5];
|
|
p[6] = pix[6];
|
|
p[7] = pix[7];
|
|
pix += line_size;
|
|
p += 8;
|
|
}
|
|
}
|
|
|
|
void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size)
|
|
{
|
|
const DCTELEM *p;
|
|
UINT8 *pix;
|
|
int i;
|
|
UINT8 *cm = cropTbl + MAX_NEG_CROP;
|
|
|
|
/* read the pixels */
|
|
p = block;
|
|
pix = pixels;
|
|
for(i=0;i<8;i++) {
|
|
pix[0] = cm[p[0]];
|
|
pix[1] = cm[p[1]];
|
|
pix[2] = cm[p[2]];
|
|
pix[3] = cm[p[3]];
|
|
pix[4] = cm[p[4]];
|
|
pix[5] = cm[p[5]];
|
|
pix[6] = cm[p[6]];
|
|
pix[7] = cm[p[7]];
|
|
pix += line_size;
|
|
p += 8;
|
|
}
|
|
}
|
|
|
|
void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size)
|
|
{
|
|
const DCTELEM *p;
|
|
UINT8 *pix;
|
|
int i;
|
|
UINT8 *cm = cropTbl + MAX_NEG_CROP;
|
|
|
|
/* read the pixels */
|
|
p = block;
|
|
pix = pixels;
|
|
for(i=0;i<8;i++) {
|
|
pix[0] = cm[pix[0] + p[0]];
|
|
pix[1] = cm[pix[1] + p[1]];
|
|
pix[2] = cm[pix[2] + p[2]];
|
|
pix[3] = cm[pix[3] + p[3]];
|
|
pix[4] = cm[pix[4] + p[4]];
|
|
pix[5] = cm[pix[5] + p[5]];
|
|
pix[6] = cm[pix[6] + p[6]];
|
|
pix[7] = cm[pix[7] + p[7]];
|
|
pix += line_size;
|
|
p += 8;
|
|
}
|
|
}
|
|
|
|
#define PIXOP(BTYPE, OPNAME, OP, INCR) \
|
|
\
|
|
static void OPNAME ## _pixels(BTYPE *block, const UINT8 *pixels, int line_size, int h) \
|
|
{ \
|
|
BTYPE *p; \
|
|
const UINT8 *pix; \
|
|
\
|
|
p = block; \
|
|
pix = pixels; \
|
|
do { \
|
|
OP(p[0], pix[0]); \
|
|
OP(p[1], pix[1]); \
|
|
OP(p[2], pix[2]); \
|
|
OP(p[3], pix[3]); \
|
|
OP(p[4], pix[4]); \
|
|
OP(p[5], pix[5]); \
|
|
OP(p[6], pix[6]); \
|
|
OP(p[7], pix[7]); \
|
|
pix += line_size; \
|
|
p += INCR; \
|
|
} while (--h);; \
|
|
} \
|
|
\
|
|
static void OPNAME ## _pixels_x2(BTYPE *block, const UINT8 *pixels, int line_size, int h) \
|
|
{ \
|
|
BTYPE *p; \
|
|
const UINT8 *pix; \
|
|
\
|
|
p = block; \
|
|
pix = pixels; \
|
|
do { \
|
|
OP(p[0], avg2(pix[0], pix[1])); \
|
|
OP(p[1], avg2(pix[1], pix[2])); \
|
|
OP(p[2], avg2(pix[2], pix[3])); \
|
|
OP(p[3], avg2(pix[3], pix[4])); \
|
|
OP(p[4], avg2(pix[4], pix[5])); \
|
|
OP(p[5], avg2(pix[5], pix[6])); \
|
|
OP(p[6], avg2(pix[6], pix[7])); \
|
|
OP(p[7], avg2(pix[7], pix[8])); \
|
|
pix += line_size; \
|
|
p += INCR; \
|
|
} while (--h); \
|
|
} \
|
|
\
|
|
static void OPNAME ## _pixels_y2(BTYPE *block, const UINT8 *pixels, int line_size, int h) \
|
|
{ \
|
|
BTYPE *p; \
|
|
const UINT8 *pix; \
|
|
const UINT8 *pix1; \
|
|
\
|
|
p = block; \
|
|
pix = pixels; \
|
|
pix1 = pixels + line_size; \
|
|
do { \
|
|
OP(p[0], avg2(pix[0], pix1[0])); \
|
|
OP(p[1], avg2(pix[1], pix1[1])); \
|
|
OP(p[2], avg2(pix[2], pix1[2])); \
|
|
OP(p[3], avg2(pix[3], pix1[3])); \
|
|
OP(p[4], avg2(pix[4], pix1[4])); \
|
|
OP(p[5], avg2(pix[5], pix1[5])); \
|
|
OP(p[6], avg2(pix[6], pix1[6])); \
|
|
OP(p[7], avg2(pix[7], pix1[7])); \
|
|
pix += line_size; \
|
|
pix1 += line_size; \
|
|
p += INCR; \
|
|
} while(--h); \
|
|
} \
|
|
\
|
|
static void OPNAME ## _pixels_xy2(BTYPE *block, const UINT8 *pixels, int line_size, int h) \
|
|
{ \
|
|
BTYPE *p; \
|
|
const UINT8 *pix; \
|
|
const UINT8 *pix1; \
|
|
\
|
|
p = block; \
|
|
pix = pixels; \
|
|
pix1 = pixels + line_size; \
|
|
do { \
|
|
OP(p[0], avg4(pix[0], pix[1], pix1[0], pix1[1])); \
|
|
OP(p[1], avg4(pix[1], pix[2], pix1[1], pix1[2])); \
|
|
OP(p[2], avg4(pix[2], pix[3], pix1[2], pix1[3])); \
|
|
OP(p[3], avg4(pix[3], pix[4], pix1[3], pix1[4])); \
|
|
OP(p[4], avg4(pix[4], pix[5], pix1[4], pix1[5])); \
|
|
OP(p[5], avg4(pix[5], pix[6], pix1[5], pix1[6])); \
|
|
OP(p[6], avg4(pix[6], pix[7], pix1[6], pix1[7])); \
|
|
OP(p[7], avg4(pix[7], pix[8], pix1[7], pix1[8])); \
|
|
pix += line_size; \
|
|
pix1 += line_size; \
|
|
p += INCR; \
|
|
} while(--h); \
|
|
} \
|
|
\
|
|
void (*OPNAME ## _pixels_tab[4])(BTYPE *block, const UINT8 *pixels, int line_size, int h) = { \
|
|
OPNAME ## _pixels, \
|
|
OPNAME ## _pixels_x2, \
|
|
OPNAME ## _pixels_y2, \
|
|
OPNAME ## _pixels_xy2, \
|
|
};
|
|
|
|
|
|
/* rounding primitives */
|
|
#define avg2(a,b) ((a+b+1)>>1)
|
|
#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
|
|
|
|
#define op_put(a, b) a = b
|
|
#define op_avg(a, b) a = avg2(a, b)
|
|
#define op_sub(a, b) a -= b
|
|
|
|
PIXOP(UINT8, put, op_put, line_size)
|
|
PIXOP(UINT8, avg, op_avg, line_size)
|
|
|
|
PIXOP(DCTELEM, sub, op_sub, 8)
|
|
|
|
/* not rounding primitives */
|
|
#undef avg2
|
|
#undef avg4
|
|
#define avg2(a,b) ((a+b)>>1)
|
|
#define avg4(a,b,c,d) ((a+b+c+d+1)>>2)
|
|
|
|
PIXOP(UINT8, put_no_rnd, op_put, line_size)
|
|
PIXOP(UINT8, avg_no_rnd, op_avg, line_size)
|
|
|
|
/* motion estimation */
|
|
|
|
#undef avg2
|
|
#undef avg4
|
|
#define avg2(a,b) ((a+b+1)>>1)
|
|
#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
|
|
|
|
int pix_abs16x16_c(UINT8 *pix1, UINT8 *pix2, int line_size, int h)
|
|
{
|
|
int s, i;
|
|
|
|
s = 0;
|
|
for(i=0;i<h;i++) {
|
|
s += abs(pix1[0] - pix2[0]);
|
|
s += abs(pix1[1] - pix2[1]);
|
|
s += abs(pix1[2] - pix2[2]);
|
|
s += abs(pix1[3] - pix2[3]);
|
|
s += abs(pix1[4] - pix2[4]);
|
|
s += abs(pix1[5] - pix2[5]);
|
|
s += abs(pix1[6] - pix2[6]);
|
|
s += abs(pix1[7] - pix2[7]);
|
|
s += abs(pix1[8] - pix2[8]);
|
|
s += abs(pix1[9] - pix2[9]);
|
|
s += abs(pix1[10] - pix2[10]);
|
|
s += abs(pix1[11] - pix2[11]);
|
|
s += abs(pix1[12] - pix2[12]);
|
|
s += abs(pix1[13] - pix2[13]);
|
|
s += abs(pix1[14] - pix2[14]);
|
|
s += abs(pix1[15] - pix2[15]);
|
|
pix1 += line_size;
|
|
pix2 += line_size;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
int pix_abs16x16_x2_c(UINT8 *pix1, UINT8 *pix2, int line_size, int h)
|
|
{
|
|
int s, i;
|
|
|
|
s = 0;
|
|
for(i=0;i<h;i++) {
|
|
s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
|
|
s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
|
|
s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
|
|
s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
|
|
s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
|
|
s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
|
|
s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
|
|
s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
|
|
s += abs(pix1[8] - avg2(pix2[8], pix2[9]));
|
|
s += abs(pix1[9] - avg2(pix2[9], pix2[10]));
|
|
s += abs(pix1[10] - avg2(pix2[10], pix2[11]));
|
|
s += abs(pix1[11] - avg2(pix2[11], pix2[12]));
|
|
s += abs(pix1[12] - avg2(pix2[12], pix2[13]));
|
|
s += abs(pix1[13] - avg2(pix2[13], pix2[14]));
|
|
s += abs(pix1[14] - avg2(pix2[14], pix2[15]));
|
|
s += abs(pix1[15] - avg2(pix2[15], pix2[16]));
|
|
pix1 += line_size;
|
|
pix2 += line_size;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
int pix_abs16x16_y2_c(UINT8 *pix1, UINT8 *pix2, int line_size, int h)
|
|
{
|
|
int s, i;
|
|
UINT8 *pix3 = pix2 + line_size;
|
|
|
|
s = 0;
|
|
for(i=0;i<h;i++) {
|
|
s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
|
|
s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
|
|
s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
|
|
s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
|
|
s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
|
|
s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
|
|
s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
|
|
s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
|
|
s += abs(pix1[8] - avg2(pix2[8], pix3[8]));
|
|
s += abs(pix1[9] - avg2(pix2[9], pix3[9]));
|
|
s += abs(pix1[10] - avg2(pix2[10], pix3[10]));
|
|
s += abs(pix1[11] - avg2(pix2[11], pix3[11]));
|
|
s += abs(pix1[12] - avg2(pix2[12], pix3[12]));
|
|
s += abs(pix1[13] - avg2(pix2[13], pix3[13]));
|
|
s += abs(pix1[14] - avg2(pix2[14], pix3[14]));
|
|
s += abs(pix1[15] - avg2(pix2[15], pix3[15]));
|
|
pix1 += line_size;
|
|
pix2 += line_size;
|
|
pix3 += line_size;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
int pix_abs16x16_xy2_c(UINT8 *pix1, UINT8 *pix2, int line_size, int h)
|
|
{
|
|
int s, i;
|
|
UINT8 *pix3 = pix2 + line_size;
|
|
|
|
s = 0;
|
|
for(i=0;i<h;i++) {
|
|
s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
|
|
s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
|
|
s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
|
|
s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
|
|
s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
|
|
s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
|
|
s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
|
|
s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
|
|
s += abs(pix1[8] - avg4(pix2[8], pix2[9], pix3[8], pix3[9]));
|
|
s += abs(pix1[9] - avg4(pix2[9], pix2[10], pix3[9], pix3[10]));
|
|
s += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));
|
|
s += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));
|
|
s += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));
|
|
s += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));
|
|
s += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));
|
|
s += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));
|
|
pix1 += line_size;
|
|
pix2 += line_size;
|
|
pix3 += line_size;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
void dsputil_init(void)
|
|
{
|
|
int i;
|
|
|
|
for(i=0;i<256;i++) cropTbl[i + MAX_NEG_CROP] = i;
|
|
for(i=0;i<MAX_NEG_CROP;i++) {
|
|
cropTbl[i] = 0;
|
|
cropTbl[i + MAX_NEG_CROP + 256] = 255;
|
|
}
|
|
|
|
for(i=0;i<512;i++) {
|
|
squareTbl[i] = (i - 256) * (i - 256);
|
|
}
|
|
|
|
get_pixels = get_pixels_c;
|
|
put_pixels_clamped = put_pixels_clamped_c;
|
|
add_pixels_clamped = add_pixels_clamped_c;
|
|
|
|
pix_abs16x16 = pix_abs16x16_c;
|
|
pix_abs16x16_x2 = pix_abs16x16_x2_c;
|
|
pix_abs16x16_y2 = pix_abs16x16_y2_c;
|
|
pix_abs16x16_xy2 = pix_abs16x16_xy2_c;
|
|
av_fdct = jpeg_fdct_ifast;
|
|
|
|
#ifdef HAVE_MMX
|
|
dsputil_init_mmx();
|
|
#endif
|
|
}
|