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FFmpeg/libavcodec/dsputil.c

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/*
* DSP utils
* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* DSP utils
*/
#include "libavutil/attributes.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "copy_block.h"
#include "dct.h"
#include "dsputil.h"
#include "simple_idct.h"
#include "faandct.h"
#include "faanidct.h"
#include "imgconvert.h"
#include "mathops.h"
#include "mpegvideo.h"
#include "config.h"
uint32_t ff_square_tab[512] = { 0, };
#define BIT_DEPTH 16
#include "dsputilenc_template.c"
#undef BIT_DEPTH
#define BIT_DEPTH 8
#include "dsputilenc_template.c"
/* Input permutation for the simple_idct_mmx */
static const uint8_t simple_mmx_permutation[64] = {
0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
};
static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st,
const uint8_t *src_scantable)
{
int i, end;
st->scantable = src_scantable;
for (i = 0; i < 64; i++) {
int j = src_scantable[i];
st->permutated[i] = permutation[j];
}
end = -1;
for (i = 0; i < 64; i++) {
int j = st->permutated[i];
if (j > end)
end = j;
st->raster_end[i] = end;
}
}
av_cold void ff_init_scantable_permutation(uint8_t *idct_permutation,
int idct_permutation_type)
{
int i;
switch (idct_permutation_type) {
case FF_NO_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = i;
break;
case FF_LIBMPEG2_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
break;
case FF_SIMPLE_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = simple_mmx_permutation[i];
break;
case FF_TRANSPOSE_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = ((i & 7) << 3) | (i >> 3);
break;
case FF_PARTTRANS_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = (i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3);
break;
case FF_SSE2_IDCT_PERM:
for (i = 0; i < 64; i++)
idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];
break;
default:
av_log(NULL, AV_LOG_ERROR,
"Internal error, IDCT permutation not set\n");
}
}
static int pix_sum_c(uint8_t *pix, int line_size)
{
int s = 0, i, j;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {
s += pix[0];
s += pix[1];
s += pix[2];
s += pix[3];
s += pix[4];
s += pix[5];
s += pix[6];
s += pix[7];
pix += 8;
}
pix += line_size - 16;
}
return s;
}
static int pix_norm1_c(uint8_t *pix, int line_size)
{
int s = 0, i, j;
uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {
#if 0
s += sq[pix[0]];
s += sq[pix[1]];
s += sq[pix[2]];
s += sq[pix[3]];
s += sq[pix[4]];
s += sq[pix[5]];
s += sq[pix[6]];
s += sq[pix[7]];
#else
#if HAVE_FAST_64BIT
register uint64_t x = *(uint64_t *) pix;
s += sq[x & 0xff];
s += sq[(x >> 8) & 0xff];
s += sq[(x >> 16) & 0xff];
s += sq[(x >> 24) & 0xff];
s += sq[(x >> 32) & 0xff];
s += sq[(x >> 40) & 0xff];
s += sq[(x >> 48) & 0xff];
s += sq[(x >> 56) & 0xff];
#else
register uint32_t x = *(uint32_t *) pix;
s += sq[x & 0xff];
s += sq[(x >> 8) & 0xff];
s += sq[(x >> 16) & 0xff];
s += sq[(x >> 24) & 0xff];
x = *(uint32_t *) (pix + 4);
s += sq[x & 0xff];
s += sq[(x >> 8) & 0xff];
s += sq[(x >> 16) & 0xff];
s += sq[(x >> 24) & 0xff];
#endif
#endif
pix += 8;
}
pix += line_size - 16;
}
return s;
}
static void bswap_buf(uint32_t *dst, const uint32_t *src, int w)
{
int i;
for (i = 0; i + 8 <= w; i += 8) {
dst[i + 0] = av_bswap32(src[i + 0]);
dst[i + 1] = av_bswap32(src[i + 1]);
dst[i + 2] = av_bswap32(src[i + 2]);
dst[i + 3] = av_bswap32(src[i + 3]);
dst[i + 4] = av_bswap32(src[i + 4]);
dst[i + 5] = av_bswap32(src[i + 5]);
dst[i + 6] = av_bswap32(src[i + 6]);
dst[i + 7] = av_bswap32(src[i + 7]);
}
for (; i < w; i++)
dst[i + 0] = av_bswap32(src[i + 0]);
}
static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len)
{
while (len--)
*dst++ = av_bswap16(*src++);
}
static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
s += sq[pix1[1] - pix2[1]];
s += sq[pix1[2] - pix2[2]];
s += sq[pix1[3] - pix2[3]];
pix1 += line_size;
pix2 += line_size;
}
return s;
}
static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
s += sq[pix1[1] - pix2[1]];
s += sq[pix1[2] - pix2[2]];
s += sq[pix1[3] - pix2[3]];
s += sq[pix1[4] - pix2[4]];
s += sq[pix1[5] - pix2[5]];
s += sq[pix1[6] - pix2[6]];
s += sq[pix1[7] - pix2[7]];
pix1 += line_size;
pix2 += line_size;
}
return s;
}
static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
s += sq[pix1[1] - pix2[1]];
s += sq[pix1[2] - pix2[2]];
s += sq[pix1[3] - pix2[3]];
s += sq[pix1[4] - pix2[4]];
s += sq[pix1[5] - pix2[5]];
s += sq[pix1[6] - pix2[6]];
s += sq[pix1[7] - pix2[7]];
s += sq[pix1[8] - pix2[8]];
s += sq[pix1[9] - pix2[9]];
s += sq[pix1[10] - pix2[10]];
s += sq[pix1[11] - pix2[11]];
s += sq[pix1[12] - pix2[12]];
s += sq[pix1[13] - pix2[13]];
s += sq[pix1[14] - pix2[14]];
s += sq[pix1[15] - pix2[15]];
pix1 += line_size;
pix2 += line_size;
}
return s;
}
static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1,
const uint8_t *s2, int stride)
{
int i;
/* read the pixels */
for (i = 0; i < 8; i++) {
block[0] = s1[0] - s2[0];
block[1] = s1[1] - s2[1];
block[2] = s1[2] - s2[2];
block[3] = s1[3] - s2[3];
block[4] = s1[4] - s2[4];
block[5] = s1[5] - s2[5];
block[6] = s1[6] - s2[6];
block[7] = s1[7] - s2[7];
s1 += stride;
s2 += stride;
block += 8;
}
}
static void put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for (i = 0; i < 8; i++) {
pixels[0] = av_clip_uint8(block[0]);
pixels[1] = av_clip_uint8(block[1]);
pixels[2] = av_clip_uint8(block[2]);
pixels[3] = av_clip_uint8(block[3]);
pixels[4] = av_clip_uint8(block[4]);
pixels[5] = av_clip_uint8(block[5]);
pixels[6] = av_clip_uint8(block[6]);
pixels[7] = av_clip_uint8(block[7]);
pixels += line_size;
block += 8;
}
}
static void put_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for(i=0;i<4;i++) {
pixels[0] = av_clip_uint8(block[0]);
pixels[1] = av_clip_uint8(block[1]);
pixels[2] = av_clip_uint8(block[2]);
pixels[3] = av_clip_uint8(block[3]);
pixels += line_size;
block += 8;
}
}
static void put_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for(i=0;i<2;i++) {
pixels[0] = av_clip_uint8(block[0]);
pixels[1] = av_clip_uint8(block[1]);
pixels += line_size;
block += 8;
}
}
static void put_signed_pixels_clamped_c(const int16_t *block,
uint8_t *av_restrict pixels,
int line_size)
{
int i, j;
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++) {
if (*block < -128)
*pixels = 0;
else if (*block > 127)
*pixels = 255;
else
*pixels = (uint8_t) (*block + 128);
block++;
pixels++;
}
pixels += (line_size - 8);
}
}
static void add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for (i = 0; i < 8; i++) {
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
pixels[2] = av_clip_uint8(pixels[2] + block[2]);
pixels[3] = av_clip_uint8(pixels[3] + block[3]);
pixels[4] = av_clip_uint8(pixels[4] + block[4]);
pixels[5] = av_clip_uint8(pixels[5] + block[5]);
pixels[6] = av_clip_uint8(pixels[6] + block[6]);
pixels[7] = av_clip_uint8(pixels[7] + block[7]);
pixels += line_size;
block += 8;
}
}
static void add_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for(i=0;i<4;i++) {
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
pixels[2] = av_clip_uint8(pixels[2] + block[2]);
pixels[3] = av_clip_uint8(pixels[3] + block[3]);
pixels += line_size;
block += 8;
}
}
static void add_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,
int line_size)
{
int i;
/* read the pixels */
for(i=0;i<2;i++) {
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
pixels += line_size;
block += 8;
}
}
static int sum_abs_dctelem_c(int16_t *block)
{
int sum = 0, i;
for (i = 0; i < 64; i++)
sum += FFABS(block[i]);
return sum;
}
static void fill_block16_c(uint8_t *block, uint8_t value, int line_size, int h)
{
int i;
for (i = 0; i < h; i++) {
memset(block, value, 16);
block += line_size;
}
}
static void fill_block8_c(uint8_t *block, uint8_t value, int line_size, int h)
{
int i;
for (i = 0; i < h; i++) {
memset(block, value, 8);
block += line_size;
}
}
#define avg2(a, b) ((a + b + 1) >> 1)
#define avg4(a, b, c, d) ((a + b + c + d + 2) >> 2)
static void gmc1_c(uint8_t *dst, uint8_t *src, int stride, int h,
int x16, int y16, int rounder)
{
const int A = (16 - x16) * (16 - y16);
const int B = (x16) * (16 - y16);
const int C = (16 - x16) * (y16);
const int D = (x16) * (y16);
int i;
for (i = 0; i < h; i++) {
dst[0] = (A * src[0] + B * src[1] + C * src[stride + 0] + D * src[stride + 1] + rounder) >> 8;
dst[1] = (A * src[1] + B * src[2] + C * src[stride + 1] + D * src[stride + 2] + rounder) >> 8;
dst[2] = (A * src[2] + B * src[3] + C * src[stride + 2] + D * src[stride + 3] + rounder) >> 8;
dst[3] = (A * src[3] + B * src[4] + C * src[stride + 3] + D * src[stride + 4] + rounder) >> 8;
dst[4] = (A * src[4] + B * src[5] + C * src[stride + 4] + D * src[stride + 5] + rounder) >> 8;
dst[5] = (A * src[5] + B * src[6] + C * src[stride + 5] + D * src[stride + 6] + rounder) >> 8;
dst[6] = (A * src[6] + B * src[7] + C * src[stride + 6] + D * src[stride + 7] + rounder) >> 8;
dst[7] = (A * src[7] + B * src[8] + C * src[stride + 7] + D * src[stride + 8] + rounder) >> 8;
dst += stride;
src += stride;
}
}
void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy, int shift, int r,
int width, int height)
{
int y, vx, vy;
const int s = 1 << shift;
width--;
height--;
for (y = 0; y < h; y++) {
int x;
vx = ox;
vy = oy;
for (x = 0; x < 8; x++) { // FIXME: optimize
int index;
int src_x = vx >> 16;
int src_y = vy >> 16;
int frac_x = src_x & (s - 1);
int frac_y = src_y & (s - 1);
src_x >>= shift;
src_y >>= shift;
if ((unsigned) src_x < width) {
if ((unsigned) src_y < height) {
index = src_x + src_y * stride;
dst[y * stride + x] =
((src[index] * (s - frac_x) +
src[index + 1] * frac_x) * (s - frac_y) +
(src[index + stride] * (s - frac_x) +
src[index + stride + 1] * frac_x) * frac_y +
r) >> (shift * 2);
} else {
index = src_x + av_clip(src_y, 0, height) * stride;
dst[y * stride + x] =
((src[index] * (s - frac_x) +
src[index + 1] * frac_x) * s +
r) >> (shift * 2);
}
} else {
if ((unsigned) src_y < height) {
index = av_clip(src_x, 0, width) + src_y * stride;
dst[y * stride + x] =
((src[index] * (s - frac_y) +
src[index + stride] * frac_y) * s +
r) >> (shift * 2);
} else {
index = av_clip(src_x, 0, width) +
av_clip(src_y, 0, height) * stride;
dst[y * stride + x] = src[index];
}
}
vx += dxx;
vy += dyx;
}
ox += dxy;
oy += dyy;
}
}
static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
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;
}
static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
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;
}
static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint8_t *pix3 = pix2 + line_size;
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;
}
static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint8_t *pix3 = pix2 + line_size;
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;
}
static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
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]);
pix1 += line_size;
pix2 += line_size;
}
return s;
}
static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
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]));
pix1 += line_size;
pix2 += line_size;
}
return s;
}
static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint8_t *pix3 = pix2 + line_size;
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]));
pix1 += line_size;
pix2 += line_size;
pix3 += line_size;
}
return s;
}
static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int s = 0, i;
uint8_t *pix3 = pix2 + line_size;
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]));
pix1 += line_size;
pix2 += line_size;
pix3 += line_size;
}
return s;
}
static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, int stride, int h)
{
int score1 = 0, score2 = 0, x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < 16; x++)
score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
if (y + 1 < h) {
for (x = 0; x < 15; x++)
score2 += FFABS(s1[x] - s1[x + stride] -
s1[x + 1] + s1[x + stride + 1]) -
FFABS(s2[x] - s2[x + stride] -
s2[x + 1] + s2[x + stride + 1]);
}
s1 += stride;
s2 += stride;
}
if (c)
return score1 + FFABS(score2) * c->avctx->nsse_weight;
else
return score1 + FFABS(score2) * 8;
}
static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, int stride, int h)
{
int score1 = 0, score2 = 0, x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < 8; x++)
score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
if (y + 1 < h) {
for (x = 0; x < 7; x++)
score2 += FFABS(s1[x] - s1[x + stride] -
s1[x + 1] + s1[x + stride + 1]) -
FFABS(s2[x] - s2[x + stride] -
s2[x + 1] + s2[x + stride + 1]);
}
s1 += stride;
s2 += stride;
}
if (c)
return score1 + FFABS(score2) * c->avctx->nsse_weight;
else
return score1 + FFABS(score2) * 8;
}
static int try_8x8basis_c(int16_t rem[64], int16_t weight[64],
int16_t basis[64], int scale)
{
int i;
unsigned int sum = 0;
for (i = 0; i < 8 * 8; i++) {
int b = rem[i] + ((basis[i] * scale +
(1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>
(BASIS_SHIFT - RECON_SHIFT));
int w = weight[i];
b >>= RECON_SHIFT;
av_assert2(-512 < b && b < 512);
sum += (w * b) * (w * b) >> 4;
}
return sum >> 2;
}
static void add_8x8basis_c(int16_t rem[64], int16_t basis[64], int scale)
{
int i;
for (i = 0; i < 8 * 8; i++)
rem[i] += (basis[i] * scale +
(1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>
(BASIS_SHIFT - RECON_SHIFT);
}
static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,
int stride, int h)
{
return 0;
}
void ff_set_cmp(DSPContext *c, me_cmp_func *cmp, int type)
{
int i;
memset(cmp, 0, sizeof(void *) * 6);
for (i = 0; i < 6; i++) {
switch (type & 0xFF) {
case FF_CMP_SAD:
cmp[i] = c->sad[i];
break;
case FF_CMP_SATD:
cmp[i] = c->hadamard8_diff[i];
break;
case FF_CMP_SSE:
cmp[i] = c->sse[i];
break;
case FF_CMP_DCT:
cmp[i] = c->dct_sad[i];
break;
case FF_CMP_DCT264:
cmp[i] = c->dct264_sad[i];
break;
case FF_CMP_DCTMAX:
cmp[i] = c->dct_max[i];
break;
case FF_CMP_PSNR:
cmp[i] = c->quant_psnr[i];
break;
case FF_CMP_BIT:
cmp[i] = c->bit[i];
break;
case FF_CMP_RD:
cmp[i] = c->rd[i];
break;
case FF_CMP_VSAD:
cmp[i] = c->vsad[i];
break;
case FF_CMP_VSSE:
cmp[i] = c->vsse[i];
break;
case FF_CMP_ZERO:
cmp[i] = zero_cmp;
break;
case FF_CMP_NSSE:
cmp[i] = c->nsse[i];
break;
#if CONFIG_DWT
case FF_CMP_W53:
cmp[i]= c->w53[i];
break;
case FF_CMP_W97:
cmp[i]= c->w97[i];
break;
#endif
default:
av_log(NULL, AV_LOG_ERROR,
"internal error in cmp function selection\n");
}
}
}
#define BUTTERFLY2(o1, o2, i1, i2) \
o1 = (i1) + (i2); \
o2 = (i1) - (i2);
#define BUTTERFLY1(x, y) \
{ \
int a, b; \
a = x; \
b = y; \
x = a + b; \
y = a - b; \
}
#define BUTTERFLYA(x, y) (FFABS((x) + (y)) + FFABS((x) - (y)))
static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst,
uint8_t *src, int stride, int h)
{
int i, temp[64], sum = 0;
av_assert2(h == 8);
for (i = 0; i < 8; i++) {
// FIXME: try pointer walks
BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
src[stride * i + 0] - dst[stride * i + 0],
src[stride * i + 1] - dst[stride * i + 1]);
BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
src[stride * i + 2] - dst[stride * i + 2],
src[stride * i + 3] - dst[stride * i + 3]);
BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
src[stride * i + 4] - dst[stride * i + 4],
src[stride * i + 5] - dst[stride * i + 5]);
BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
src[stride * i + 6] - dst[stride * i + 6],
src[stride * i + 7] - dst[stride * i + 7]);
BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
}
for (i = 0; i < 8; i++) {
BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
sum += BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i]) +
BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i]) +
BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i]) +
BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
}
return sum;
}
static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src,
uint8_t *dummy, int stride, int h)
{
int i, temp[64], sum = 0;
av_assert2(h == 8);
for (i = 0; i < 8; i++) {
// FIXME: try pointer walks
BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
src[stride * i + 0], src[stride * i + 1]);
BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
src[stride * i + 2], src[stride * i + 3]);
BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
src[stride * i + 4], src[stride * i + 5]);
BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
src[stride * i + 6], src[stride * i + 7]);
BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
}
for (i = 0; i < 8; i++) {
BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
sum +=
BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i])
+ BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i])
+ BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i])
+ BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
}
sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean
return sum;
}
static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1,
uint8_t *src2, int stride, int h)
{
LOCAL_ALIGNED_16(int16_t, temp, [64]);
av_assert2(h == 8);
s->dsp.diff_pixels(temp, src1, src2, stride);
s->dsp.fdct(temp);
return s->dsp.sum_abs_dctelem(temp);
}
#if CONFIG_GPL
#define DCT8_1D \
{ \
const int s07 = SRC(0) + SRC(7); \
const int s16 = SRC(1) + SRC(6); \
const int s25 = SRC(2) + SRC(5); \
const int s34 = SRC(3) + SRC(4); \
const int a0 = s07 + s34; \
const int a1 = s16 + s25; \
const int a2 = s07 - s34; \
const int a3 = s16 - s25; \
const int d07 = SRC(0) - SRC(7); \
const int d16 = SRC(1) - SRC(6); \
const int d25 = SRC(2) - SRC(5); \
const int d34 = SRC(3) - SRC(4); \
const int a4 = d16 + d25 + (d07 + (d07 >> 1)); \
const int a5 = d07 - d34 - (d25 + (d25 >> 1)); \
const int a6 = d07 + d34 - (d16 + (d16 >> 1)); \
const int a7 = d16 - d25 + (d34 + (d34 >> 1)); \
DST(0, a0 + a1); \
DST(1, a4 + (a7 >> 2)); \
DST(2, a2 + (a3 >> 1)); \
DST(3, a5 + (a6 >> 2)); \
DST(4, a0 - a1); \
DST(5, a6 - (a5 >> 2)); \
DST(6, (a2 >> 1) - a3); \
DST(7, (a4 >> 2) - a7); \
}
static int dct264_sad8x8_c(MpegEncContext *s, uint8_t *src1,
uint8_t *src2, int stride, int h)
{
int16_t dct[8][8];
int i, sum = 0;
s->dsp.diff_pixels(dct[0], src1, src2, stride);
#define SRC(x) dct[i][x]
#define DST(x, v) dct[i][x] = v
for (i = 0; i < 8; i++)
DCT8_1D
#undef SRC
#undef DST
#define SRC(x) dct[x][i]
#define DST(x, v) sum += FFABS(v)
for (i = 0; i < 8; i++)
DCT8_1D
#undef SRC
#undef DST
return sum;
}
#endif
static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1,
uint8_t *src2, int stride, int h)
{
LOCAL_ALIGNED_16(int16_t, temp, [64]);
int sum = 0, i;
av_assert2(h == 8);
s->dsp.diff_pixels(temp, src1, src2, stride);
s->dsp.fdct(temp);
for (i = 0; i < 64; i++)
sum = FFMAX(sum, FFABS(temp[i]));
return sum;
}
static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1,
uint8_t *src2, int stride, int h)
{
LOCAL_ALIGNED_16(int16_t, temp, [64 * 2]);
int16_t *const bak = temp + 64;
int sum = 0, i;
av_assert2(h == 8);
s->mb_intra = 0;
s->dsp.diff_pixels(temp, src1, src2, stride);
memcpy(bak, temp, 64 * sizeof(int16_t));
s->block_last_index[0 /* FIXME */] =
s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
s->dct_unquantize_inter(s, temp, 0, s->qscale);
ff_simple_idct_8(temp); // FIXME
for (i = 0; i < 64; i++)
sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);
return sum;
}
static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
int stride, int h)
{
const uint8_t *scantable = s->intra_scantable.permutated;
LOCAL_ALIGNED_16(int16_t, temp, [64]);
LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);
LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);
int i, last, run, bits, level, distortion, start_i;
const int esc_length = s->ac_esc_length;
uint8_t *length, *last_length;
av_assert2(h == 8);
copy_block8(lsrc1, src1, 8, stride, 8);
copy_block8(lsrc2, src2, 8, stride, 8);
s->dsp.diff_pixels(temp, lsrc1, lsrc2, 8);
s->block_last_index[0 /* FIXME */] =
last =
s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
bits = 0;
if (s->mb_intra) {
start_i = 1;
length = s->intra_ac_vlc_length;
last_length = s->intra_ac_vlc_last_length;
bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
} else {
start_i = 0;
length = s->inter_ac_vlc_length;
last_length = s->inter_ac_vlc_last_length;
}
if (last >= start_i) {
run = 0;
for (i = start_i; i < last; i++) {
int j = scantable[i];
level = temp[j];
if (level) {
level += 64;
if ((level & (~127)) == 0)
bits += length[UNI_AC_ENC_INDEX(run, level)];
else
bits += esc_length;
run = 0;
} else
run++;
}
i = scantable[last];
level = temp[i] + 64;
av_assert2(level - 64);
if ((level & (~127)) == 0) {
bits += last_length[UNI_AC_ENC_INDEX(run, level)];
} else
bits += esc_length;
}
if (last >= 0) {
if (s->mb_intra)
s->dct_unquantize_intra(s, temp, 0, s->qscale);
else
s->dct_unquantize_inter(s, temp, 0, s->qscale);
}
s->dsp.idct_add(lsrc2, 8, temp);
distortion = s->dsp.sse[1](NULL, lsrc2, lsrc1, 8, 8);
return distortion + ((bits * s->qscale * s->qscale * 109 + 64) >> 7);
}
static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
int stride, int h)
{
const uint8_t *scantable = s->intra_scantable.permutated;
LOCAL_ALIGNED_16(int16_t, temp, [64]);
int i, last, run, bits, level, start_i;
const int esc_length = s->ac_esc_length;
uint8_t *length, *last_length;
av_assert2(h == 8);
s->dsp.diff_pixels(temp, src1, src2, stride);
s->block_last_index[0 /* FIXME */] =
last =
s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
bits = 0;
if (s->mb_intra) {
start_i = 1;
length = s->intra_ac_vlc_length;
last_length = s->intra_ac_vlc_last_length;
bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
} else {
start_i = 0;
length = s->inter_ac_vlc_length;
last_length = s->inter_ac_vlc_last_length;
}
if (last >= start_i) {
run = 0;
for (i = start_i; i < last; i++) {
int j = scantable[i];
level = temp[j];
if (level) {
level += 64;
if ((level & (~127)) == 0)
bits += length[UNI_AC_ENC_INDEX(run, level)];
else
bits += esc_length;
run = 0;
} else
run++;
}
i = scantable[last];
level = temp[i] + 64;
av_assert2(level - 64);
if ((level & (~127)) == 0)
bits += last_length[UNI_AC_ENC_INDEX(run, level)];
else
bits += esc_length;
}
return bits;
}
#define VSAD_INTRA(size) \
static int vsad_intra ## size ## _c(MpegEncContext *c, \
uint8_t *s, uint8_t *dummy, \
int stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x += 4) { \
score += FFABS(s[x] - s[x + stride]) + \
FFABS(s[x + 1] - s[x + stride + 1]) + \
FFABS(s[x + 2] - s[x + 2 + stride]) + \
FFABS(s[x + 3] - s[x + 3 + stride]); \
} \
s += stride; \
} \
\
return score; \
}
VSAD_INTRA(8)
VSAD_INTRA(16)
#define VSAD(size) \
static int vsad ## size ## _c(MpegEncContext *c, \
uint8_t *s1, uint8_t *s2, \
int stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x++) \
score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
s1 += stride; \
s2 += stride; \
} \
\
return score; \
}
VSAD(8)
VSAD(16)
#define SQ(a) ((a) * (a))
#define VSSE_INTRA(size) \
static int vsse_intra ## size ## _c(MpegEncContext *c, \
uint8_t *s, uint8_t *dummy, \
int stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x += 4) { \
score += SQ(s[x] - s[x + stride]) + \
SQ(s[x + 1] - s[x + stride + 1]) + \
SQ(s[x + 2] - s[x + stride + 2]) + \
SQ(s[x + 3] - s[x + stride + 3]); \
} \
s += stride; \
} \
\
return score; \
}
VSSE_INTRA(8)
VSSE_INTRA(16)
#define VSSE(size) \
static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, \
int stride, int h) \
{ \
int score = 0, x, y; \
\
for (y = 1; y < h; y++) { \
for (x = 0; x < size; x++) \
score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
s1 += stride; \
s2 += stride; \
} \
\
return score; \
}
VSSE(8)
VSSE(16)
#define WRAPPER8_16_SQ(name8, name16) \
static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src, \
int stride, int h) \
{ \
int score = 0; \
\
score += name8(s, dst, src, stride, 8); \
score += name8(s, dst + 8, src + 8, stride, 8); \
if (h == 16) { \
dst += 8 * stride; \
src += 8 * stride; \
score += name8(s, dst, src, stride, 8); \
score += name8(s, dst + 8, src + 8, stride, 8); \
} \
return score; \
}
WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)
WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)
WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)
#if CONFIG_GPL
WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)
#endif
WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)
WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
WRAPPER8_16_SQ(rd8x8_c, rd16_c)
WRAPPER8_16_SQ(bit8x8_c, bit16_c)
static inline uint32_t clipf_c_one(uint32_t a, uint32_t mini,
uint32_t maxi, uint32_t maxisign)
{
if (a > mini)
return mini;
else if ((a ^ (1U << 31)) > maxisign)
return maxi;
else
return a;
}
static void vector_clipf_c_opposite_sign(float *dst, const float *src,
float *min, float *max, int len)
{
int i;
uint32_t mini = *(uint32_t *) min;
uint32_t maxi = *(uint32_t *) max;
uint32_t maxisign = maxi ^ (1U << 31);
uint32_t *dsti = (uint32_t *) dst;
const uint32_t *srci = (const uint32_t *) src;
for (i = 0; i < len; i += 8) {
dsti[i + 0] = clipf_c_one(srci[i + 0], mini, maxi, maxisign);
dsti[i + 1] = clipf_c_one(srci[i + 1], mini, maxi, maxisign);
dsti[i + 2] = clipf_c_one(srci[i + 2], mini, maxi, maxisign);
dsti[i + 3] = clipf_c_one(srci[i + 3], mini, maxi, maxisign);
dsti[i + 4] = clipf_c_one(srci[i + 4], mini, maxi, maxisign);
dsti[i + 5] = clipf_c_one(srci[i + 5], mini, maxi, maxisign);
dsti[i + 6] = clipf_c_one(srci[i + 6], mini, maxi, maxisign);
dsti[i + 7] = clipf_c_one(srci[i + 7], mini, maxi, maxisign);
}
}
static void vector_clipf_c(float *dst, const float *src,
float min, float max, int len)
{
int i;
if (min < 0 && max > 0) {
vector_clipf_c_opposite_sign(dst, src, &min, &max, len);
} else {
for (i = 0; i < len; i += 8) {
dst[i] = av_clipf(src[i], min, max);
dst[i + 1] = av_clipf(src[i + 1], min, max);
dst[i + 2] = av_clipf(src[i + 2], min, max);
dst[i + 3] = av_clipf(src[i + 3], min, max);
dst[i + 4] = av_clipf(src[i + 4], min, max);
dst[i + 5] = av_clipf(src[i + 5], min, max);
dst[i + 6] = av_clipf(src[i + 6], min, max);
dst[i + 7] = av_clipf(src[i + 7], min, max);
}
}
}
static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2,
int order)
{
int res = 0;
while (order--)
res += *v1++ **v2++;
return res;
}
static void vector_clip_int32_c(int32_t *dst, const int32_t *src, int32_t min,
int32_t max, unsigned int len)
{
do {
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
*dst++ = av_clip(*src++, min, max);
len -= 8;
} while (len > 0);
}
static void jref_idct_put(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct(block);
put_pixels_clamped_c(block, dest, line_size);
}
static void jref_idct_add(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct(block);
add_pixels_clamped_c(block, dest, line_size);
}
static void ff_jref_idct4_put(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct4 (block);
put_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct4_add(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct4 (block);
add_pixels_clamped4_c(block, dest, line_size);
}
static void ff_jref_idct2_put(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct2 (block);
put_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct2_add(uint8_t *dest, int line_size, int16_t *block)
{
ff_j_rev_dct2 (block);
add_pixels_clamped2_c(block, dest, line_size);
}
static void ff_jref_idct1_put(uint8_t *dest, int line_size, int16_t *block)
{
dest[0] = av_clip_uint8((block[0] + 4)>>3);
}
static void ff_jref_idct1_add(uint8_t *dest, int line_size, int16_t *block)
{
dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));
}
/* draw the edges of width 'w' of an image of size width, height */
// FIXME: Check that this is OK for MPEG-4 interlaced.
static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height,
int w, int h, int sides)
{
uint8_t *ptr = buf, *last_line;
int i;
/* left and right */
for (i = 0; i < height; i++) {
memset(ptr - w, ptr[0], w);
memset(ptr + width, ptr[width - 1], w);
ptr += wrap;
}
/* top and bottom + corners */
buf -= w;
last_line = buf + (height - 1) * wrap;
if (sides & EDGE_TOP)
for (i = 0; i < h; i++)
// top
memcpy(buf - (i + 1) * wrap, buf, width + w + w);
if (sides & EDGE_BOTTOM)
for (i = 0; i < h; i++)
// bottom
memcpy(last_line + (i + 1) * wrap, last_line, width + w + w);
}
static void clear_block_8_c(int16_t *block)
{
memset(block, 0, sizeof(int16_t) * 64);
}
static void clear_blocks_8_c(int16_t *blocks)
{
memset(blocks, 0, sizeof(int16_t) * 6 * 64);
}
/* init static data */
av_cold void ff_dsputil_static_init(void)
{
int i;
for (i = 0; i < 512; i++)
ff_square_tab[i] = (i - 256) * (i - 256);
}
int ff_check_alignment(void)
{
static int did_fail = 0;
LOCAL_ALIGNED_16(int, aligned, [4]);
if ((intptr_t)aligned & 15) {
if (!did_fail) {
#if HAVE_MMX || HAVE_ALTIVEC
av_log(NULL, AV_LOG_ERROR,
"Compiler did not align stack variables. Libavcodec has been miscompiled\n"
"and may be very slow or crash. This is not a bug in libavcodec,\n"
"but in the compiler. You may try recompiling using gcc >= 4.2.\n"
"Do not report crashes to FFmpeg developers.\n");
#endif
did_fail=1;
}
return -1;
}
return 0;
}
av_cold void ff_dsputil_init(DSPContext *c, AVCodecContext *avctx)
{
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
ff_check_alignment();
#if CONFIG_ENCODERS
if (avctx->bits_per_raw_sample == 10) {
c->fdct = ff_jpeg_fdct_islow_10;
c->fdct248 = ff_fdct248_islow_10;
} else {
if (avctx->dct_algo == FF_DCT_FASTINT) {
c->fdct = ff_fdct_ifast;
c->fdct248 = ff_fdct_ifast248;
} else if (avctx->dct_algo == FF_DCT_FAAN) {
c->fdct = ff_faandct;
c->fdct248 = ff_faandct248;
} else {
c->fdct = ff_jpeg_fdct_islow_8; // slow/accurate/default
c->fdct248 = ff_fdct248_islow_8;
}
}
#endif /* CONFIG_ENCODERS */
if (avctx->lowres==1) {
c->idct_put = ff_jref_idct4_put;
c->idct_add = ff_jref_idct4_add;
c->idct = ff_j_rev_dct4;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else if (avctx->lowres==2) {
c->idct_put = ff_jref_idct2_put;
c->idct_add = ff_jref_idct2_add;
c->idct = ff_j_rev_dct2;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else if (avctx->lowres==3) {
c->idct_put = ff_jref_idct1_put;
c->idct_add = ff_jref_idct1_add;
c->idct = ff_j_rev_dct1;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if (avctx->bits_per_raw_sample == 10) {
c->idct_put = ff_simple_idct_put_10;
c->idct_add = ff_simple_idct_add_10;
c->idct = ff_simple_idct_10;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else if (avctx->bits_per_raw_sample == 12) {
c->idct_put = ff_simple_idct_put_12;
c->idct_add = ff_simple_idct_add_12;
c->idct = ff_simple_idct_12;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else {
if (avctx->idct_algo == FF_IDCT_INT) {
c->idct_put = jref_idct_put;
c->idct_add = jref_idct_add;
c->idct = ff_j_rev_dct;
c->idct_permutation_type = FF_LIBMPEG2_IDCT_PERM;
} else if (avctx->idct_algo == FF_IDCT_FAAN) {
c->idct_put = ff_faanidct_put;
c->idct_add = ff_faanidct_add;
c->idct = ff_faanidct;
c->idct_permutation_type = FF_NO_IDCT_PERM;
} else { // accurate/default
c->idct_put = ff_simple_idct_put_8;
c->idct_add = ff_simple_idct_add_8;
c->idct = ff_simple_idct_8;
c->idct_permutation_type = FF_NO_IDCT_PERM;
}
}
}
c->diff_pixels = diff_pixels_c;
c->put_pixels_clamped = put_pixels_clamped_c;
c->put_signed_pixels_clamped = put_signed_pixels_clamped_c;
c->add_pixels_clamped = add_pixels_clamped_c;
c->sum_abs_dctelem = sum_abs_dctelem_c;
c->gmc1 = gmc1_c;
c->gmc = ff_gmc_c;
c->pix_sum = pix_sum_c;
c->pix_norm1 = pix_norm1_c;
c->fill_block_tab[0] = fill_block16_c;
c->fill_block_tab[1] = fill_block8_c;
/* TODO [0] 16 [1] 8 */
c->pix_abs[0][0] = pix_abs16_c;
c->pix_abs[0][1] = pix_abs16_x2_c;
c->pix_abs[0][2] = pix_abs16_y2_c;
c->pix_abs[0][3] = pix_abs16_xy2_c;
c->pix_abs[1][0] = pix_abs8_c;
c->pix_abs[1][1] = pix_abs8_x2_c;
c->pix_abs[1][2] = pix_abs8_y2_c;
c->pix_abs[1][3] = pix_abs8_xy2_c;
#define SET_CMP_FUNC(name) \
c->name[0] = name ## 16_c; \
c->name[1] = name ## 8x8_c;
SET_CMP_FUNC(hadamard8_diff)
c->hadamard8_diff[4] = hadamard8_intra16_c;
c->hadamard8_diff[5] = hadamard8_intra8x8_c;
SET_CMP_FUNC(dct_sad)
SET_CMP_FUNC(dct_max)
#if CONFIG_GPL
SET_CMP_FUNC(dct264_sad)
#endif
c->sad[0] = pix_abs16_c;
c->sad[1] = pix_abs8_c;
c->sse[0] = sse16_c;
c->sse[1] = sse8_c;
c->sse[2] = sse4_c;
SET_CMP_FUNC(quant_psnr)
SET_CMP_FUNC(rd)
SET_CMP_FUNC(bit)
c->vsad[0] = vsad16_c;
c->vsad[1] = vsad8_c;
c->vsad[4] = vsad_intra16_c;
c->vsad[5] = vsad_intra8_c;
c->vsse[0] = vsse16_c;
c->vsse[1] = vsse8_c;
c->vsse[4] = vsse_intra16_c;
c->vsse[5] = vsse_intra8_c;
c->nsse[0] = nsse16_c;
c->nsse[1] = nsse8_c;
#if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER
ff_dsputil_init_dwt(c);
#endif
c->bswap_buf = bswap_buf;
c->bswap16_buf = bswap16_buf;
c->try_8x8basis = try_8x8basis_c;
c->add_8x8basis = add_8x8basis_c;
c->scalarproduct_int16 = scalarproduct_int16_c;
c->vector_clip_int32 = vector_clip_int32_c;
c->vector_clipf = vector_clipf_c;
c->shrink[0] = av_image_copy_plane;
c->shrink[1] = ff_shrink22;
c->shrink[2] = ff_shrink44;
c->shrink[3] = ff_shrink88;
c->draw_edges = draw_edges_8_c;
c->clear_block = clear_block_8_c;
c->clear_blocks = clear_blocks_8_c;
switch (avctx->bits_per_raw_sample) {
case 9:
case 10:
case 12:
case 14:
c->get_pixels = get_pixels_16_c;
break;
default:
if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) {
c->get_pixels = get_pixels_8_c;
}
break;
}
if (ARCH_ALPHA)
ff_dsputil_init_alpha(c, avctx);
if (ARCH_ARM)
ff_dsputil_init_arm(c, avctx, high_bit_depth);
if (ARCH_PPC)
ff_dsputil_init_ppc(c, avctx, high_bit_depth);
if (ARCH_X86)
ff_dsputil_init_x86(c, avctx, high_bit_depth);
ff_init_scantable_permutation(c->idct_permutation,
c->idct_permutation_type);
}
av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
{
ff_dsputil_init(c, avctx);
}
av_cold void avpriv_dsputil_init(DSPContext *c, AVCodecContext *avctx)
{
ff_dsputil_init(c, avctx);
}