File size: 13,059 Bytes
8ead80b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 |
/*
* Copyright (C) 2009 David Conrad
*
* 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
*/
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "diracdsp.h"
#define FILTER(src, stride) \
((21*((src)[ 0*stride] + (src)[1*stride]) \
-7*((src)[-1*stride] + (src)[2*stride]) \
+3*((src)[-2*stride] + (src)[3*stride]) \
-1*((src)[-3*stride] + (src)[4*stride]) + 16) >> 5)
static void dirac_hpel_filter(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src,
int stride, int width, int height)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = -3; x < width+5; x++)
dstv[x] = av_clip_uint8(FILTER(src+x, stride));
for (x = 0; x < width; x++)
dstc[x] = av_clip_uint8(FILTER(dstv+x, 1));
for (x = 0; x < width; x++)
dsth[x] = av_clip_uint8(FILTER(src+x, 1));
src += stride;
dsth += stride;
dstv += stride;
dstc += stride;
}
}
#define PIXOP_BILINEAR(PFX, OP, WIDTH) \
static void ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c(uint8_t *dst, const uint8_t *src[5], int stride, int h) \
{ \
int x; \
const uint8_t *s0 = src[0]; \
const uint8_t *s1 = src[1]; \
const uint8_t *s2 = src[2]; \
const uint8_t *s3 = src[3]; \
const uint8_t *w = src[4]; \
\
while (h--) { \
for (x = 0; x < WIDTH; x++) { \
OP(dst[x], (s0[x]*w[0] + s1[x]*w[1] + s2[x]*w[2] + s3[x]*w[3] + 8) >> 4); \
} \
\
dst += stride; \
s0 += stride; \
s1 += stride; \
s2 += stride; \
s3 += stride; \
} \
}
#define OP_PUT(dst, val) (dst) = (val)
#define OP_AVG(dst, val) (dst) = (((dst) + (val) + 1)>>1)
PIXOP_BILINEAR(put, OP_PUT, 8)
PIXOP_BILINEAR(put, OP_PUT, 16)
PIXOP_BILINEAR(put, OP_PUT, 32)
PIXOP_BILINEAR(avg, OP_AVG, 8)
PIXOP_BILINEAR(avg, OP_AVG, 16)
PIXOP_BILINEAR(avg, OP_AVG, 32)
#define op_scale1(x) block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom)
#define op_scale2(x) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom)
#define DIRAC_WEIGHT(W) \
static void weight_dirac_pixels ## W ## _c(uint8_t *block, int stride, int log2_denom, \
int weight, int h) { \
int x; \
while (h--) { \
for (x = 0; x < W; x++) { \
op_scale1(x); \
op_scale1(x+1); \
} \
block += stride; \
} \
} \
static void biweight_dirac_pixels ## W ## _c(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, \
int weightd, int weights, int h) { \
int x; \
while (h--) { \
for (x = 0; x < W; x++) { \
op_scale2(x); \
op_scale2(x+1); \
} \
dst += stride; \
src += stride; \
} \
}
DIRAC_WEIGHT(8)
DIRAC_WEIGHT(16)
DIRAC_WEIGHT(32)
#define ADD_OBMC(xblen) \
static void add_obmc ## xblen ## _c(uint16_t *dst, const uint8_t *src, int stride, \
const uint8_t *obmc_weight, int yblen) \
{ \
int x; \
while (yblen--) { \
for (x = 0; x < xblen; x += 2) { \
dst[x ] += src[x ] * obmc_weight[x ]; \
dst[x+1] += src[x+1] * obmc_weight[x+1]; \
} \
dst += stride; \
src += stride; \
obmc_weight += 32; \
} \
}
ADD_OBMC(8)
ADD_OBMC(16)
ADD_OBMC(32)
static void put_signed_rect_clamped_8bit_c(uint8_t *dst, int dst_stride, const uint8_t *_src, int src_stride, int width, int height)
{
int x, y;
const int16_t *src = (const int16_t *)_src;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x+=4) {
dst[x ] = av_clip_uint8(src[x ] + 128);
dst[x+1] = av_clip_uint8(src[x+1] + 128);
dst[x+2] = av_clip_uint8(src[x+2] + 128);
dst[x+3] = av_clip_uint8(src[x+3] + 128);
}
dst += dst_stride;
src += src_stride >> 1;
}
}
#define PUT_SIGNED_RECT_CLAMPED(PX) \
static void put_signed_rect_clamped_ ## PX ## bit_c(uint8_t *_dst, int dst_stride, const uint8_t *_src, \
int src_stride, int width, int height) \
{ \
int x, y; \
uint16_t *dst = (uint16_t *)_dst; \
const int32_t *src = (const int32_t *)_src; \
for (y = 0; y < height; y++) { \
for (x = 0; x < width; x+=4) { \
dst[x ] = av_clip_uintp2(src[x ] + (1U << (PX - 1)), PX); \
dst[x+1] = av_clip_uintp2(src[x+1] + (1U << (PX - 1)), PX); \
dst[x+2] = av_clip_uintp2(src[x+2] + (1U << (PX - 1)), PX); \
dst[x+3] = av_clip_uintp2(src[x+3] + (1U << (PX - 1)), PX); \
} \
dst += dst_stride >> 1; \
src += src_stride >> 2; \
} \
}
PUT_SIGNED_RECT_CLAMPED(10)
PUT_SIGNED_RECT_CLAMPED(12)
static void add_rect_clamped_c(uint8_t *dst, const uint16_t *src, int stride,
const int16_t *idwt, int idwt_stride,
int width, int height)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x+=2) {
dst[x ] = av_clip_uint8(((src[x ]+32)>>6) + idwt[x ]);
dst[x+1] = av_clip_uint8(((src[x+1]+32)>>6) + idwt[x+1]);
}
dst += stride;
src += stride;
idwt += idwt_stride;
}
}
#define DEQUANT_SUBBAND(PX) \
static void dequant_subband_ ## PX ## _c(uint8_t *src, uint8_t *dst, ptrdiff_t stride, \
const int qf, const int qs, int tot_v, int tot_h) \
{ \
int i, y; \
for (y = 0; y < tot_v; y++) { \
PX c, *src_r = (PX *)src, *dst_r = (PX *)dst; \
for (i = 0; i < tot_h; i++) { \
c = *src_r++; \
if (c < 0) c = -((-(unsigned)c*qf + qs) >> 2); \
else if(c > 0) c = (( (unsigned)c*qf + qs) >> 2); \
*dst_r++ = c; \
} \
src += tot_h << (sizeof(PX) >> 1); \
dst += stride; \
} \
}
DEQUANT_SUBBAND(int16_t)
DEQUANT_SUBBAND(int32_t)
#define PIXFUNC(PFX, WIDTH) \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][0] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][1] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l2_c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][2] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l4_c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][3] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c
av_cold void ff_diracdsp_init(DiracDSPContext *c)
{
c->dirac_hpel_filter = dirac_hpel_filter;
c->add_rect_clamped = add_rect_clamped_c;
c->put_signed_rect_clamped[0] = put_signed_rect_clamped_8bit_c;
c->put_signed_rect_clamped[1] = put_signed_rect_clamped_10bit_c;
c->put_signed_rect_clamped[2] = put_signed_rect_clamped_12bit_c;
c->add_dirac_obmc[0] = add_obmc8_c;
c->add_dirac_obmc[1] = add_obmc16_c;
c->add_dirac_obmc[2] = add_obmc32_c;
c->weight_dirac_pixels_tab[0] = weight_dirac_pixels8_c;
c->weight_dirac_pixels_tab[1] = weight_dirac_pixels16_c;
c->weight_dirac_pixels_tab[2] = weight_dirac_pixels32_c;
c->biweight_dirac_pixels_tab[0] = biweight_dirac_pixels8_c;
c->biweight_dirac_pixels_tab[1] = biweight_dirac_pixels16_c;
c->biweight_dirac_pixels_tab[2] = biweight_dirac_pixels32_c;
c->dequant_subband[0] = c->dequant_subband[2] = dequant_subband_int16_t_c;
c->dequant_subband[1] = c->dequant_subband[3] = dequant_subband_int32_t_c;
PIXFUNC(put, 8);
PIXFUNC(put, 16);
PIXFUNC(put, 32);
PIXFUNC(avg, 8);
PIXFUNC(avg, 16);
PIXFUNC(avg, 32);
#if ARCH_X86
ff_diracdsp_init_x86(c);
#endif
}
|