libavcodec/vp8dsp.c

   1 /*
   2  * Copyright (C) 2010 David Conrad
   3  * Copyright (C) 2010 Ronald S. Bultje
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * Libav is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 /**
  23  * @file
  24  * VP8 compatible video decoder
  25  */
  26
  27 #include "dsputil.h"
  28 #include "vp8dsp.h"
  29 #include "libavutil/common.h"
  30
  31 // TODO: Maybe add dequant
  32 static void vp8_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
  33 {
  34     int i, t0, t1, t2, t3;
  35
  36     for (i = 0; i < 4; i++) {
  37         t0 = dc[0*4+i] + dc[3*4+i];
  38         t1 = dc[1*4+i] + dc[2*4+i];
  39         t2 = dc[1*4+i] - dc[2*4+i];
  40         t3 = dc[0*4+i] - dc[3*4+i];
  41
  42         dc[0*4+i] = t0 + t1;
  43         dc[1*4+i] = t3 + t2;
  44         dc[2*4+i] = t0 - t1;
  45         dc[3*4+i] = t3 - t2;
  46     }
  47
  48     for (i = 0; i < 4; i++) {
  49         t0 = dc[i*4+0] + dc[i*4+3] + 3; // rounding
  50         t1 = dc[i*4+1] + dc[i*4+2];
  51         t2 = dc[i*4+1] - dc[i*4+2];
  52         t3 = dc[i*4+0] - dc[i*4+3] + 3; // rounding
  53         dc[i*4+0] = 0;
  54         dc[i*4+1] = 0;
  55         dc[i*4+2] = 0;
  56         dc[i*4+3] = 0;
  57
  58         block[i][0][0] = (t0 + t1) >> 3;
  59         block[i][1][0] = (t3 + t2) >> 3;
  60         block[i][2][0] = (t0 - t1) >> 3;
  61         block[i][3][0] = (t3 - t2) >> 3;
  62     }
  63 }
  64
  65 static void vp8_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
  66 {
  67     int i, val = (dc[0] + 3) >> 3;
  68     dc[0] = 0;
  69
  70     for (i = 0; i < 4; i++) {
  71         block[i][0][0] = val;
  72         block[i][1][0] = val;
  73         block[i][2][0] = val;
  74         block[i][3][0] = val;
  75     }
  76 }
  77
  78 #define MUL_20091(a) ((((a)*20091) >> 16) + (a))
  79 #define MUL_35468(a)  (((a)*35468) >> 16)
  80
  81 static void vp8_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
  82 {
  83     int i, t0, t1, t2, t3;
  84     int16_t tmp[16];
  85
  86     for (i = 0; i < 4; i++) {
  87         t0 = block[0*4+i] + block[2*4+i];
  88         t1 = block[0*4+i] - block[2*4+i];
  89         t2 = MUL_35468(block[1*4+i]) - MUL_20091(block[3*4+i]);
  90         t3 = MUL_20091(block[1*4+i]) + MUL_35468(block[3*4+i]);
  91         block[0*4+i] = 0;
  92         block[1*4+i] = 0;
  93         block[2*4+i] = 0;
  94         block[3*4+i] = 0;
  95
  96         tmp[i*4+0] = t0 + t3;
  97         tmp[i*4+1] = t1 + t2;
  98         tmp[i*4+2] = t1 - t2;
  99         tmp[i*4+3] = t0 - t3;
 100     }
 101
 102     for (i = 0; i < 4; i++) {
 103         t0 = tmp[0*4+i] + tmp[2*4+i];
 104         t1 = tmp[0*4+i] - tmp[2*4+i];
 105         t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);
 106         t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);
 107
 108         dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
 109         dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
 110         dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
 111         dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
 112         dst += stride;
 113     }
 114 }
 115
 116 static void vp8_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
 117 {
 118     int i, dc = (block[0] + 4) >> 3;
 119     block[0] = 0;
 120
 121     for (i = 0; i < 4; i++) {
 122         dst[0] = av_clip_uint8(dst[0] + dc);
 123         dst[1] = av_clip_uint8(dst[1] + dc);
 124         dst[2] = av_clip_uint8(dst[2] + dc);
 125         dst[3] = av_clip_uint8(dst[3] + dc);
 126         dst += stride;
 127     }
 128 }
 129
 130 static void vp8_idct_dc_add4uv_c(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride)
 131 {
 132     vp8_idct_dc_add_c(dst+stride*0+0, block[0], stride);
 133     vp8_idct_dc_add_c(dst+stride*0+4, block[1], stride);
 134     vp8_idct_dc_add_c(dst+stride*4+0, block[2], stride);
 135     vp8_idct_dc_add_c(dst+stride*4+4, block[3], stride);
 136 }
 137
 138 static void vp8_idct_dc_add4y_c(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride)
 139 {
 140     vp8_idct_dc_add_c(dst+ 0, block[0], stride);
 141     vp8_idct_dc_add_c(dst+ 4, block[1], stride);
 142     vp8_idct_dc_add_c(dst+ 8, block[2], stride);
 143     vp8_idct_dc_add_c(dst+12, block[3], stride);
 144 }
 145
 146 // because I like only having two parameters to pass functions...
 147 #define LOAD_PIXELS\
 148     int av_unused p3 = p[-4*stride];\
 149     int av_unused p2 = p[-3*stride];\
 150     int av_unused p1 = p[-2*stride];\
 151     int av_unused p0 = p[-1*stride];\
 152     int av_unused q0 = p[ 0*stride];\
 153     int av_unused q1 = p[ 1*stride];\
 154     int av_unused q2 = p[ 2*stride];\
 155     int av_unused q3 = p[ 3*stride];
 156
 157 #define clip_int8(n) (cm[n+0x80]-0x80)
 158
 159 static av_always_inline void filter_common(uint8_t *p, ptrdiff_t stride, int is4tap)
 160 {
 161     LOAD_PIXELS
 162     int a, f1, f2;
 163     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
 164
 165     a = 3*(q0 - p0);
 166
 167     if (is4tap)
 168         a += clip_int8(p1 - q1);
 169
 170     a = clip_int8(a);
 171
 172     // We deviate from the spec here with c(a+3) >> 3
 173     // since that's what libvpx does.
 174     f1 = FFMIN(a+4, 127) >> 3;
 175     f2 = FFMIN(a+3, 127) >> 3;
 176
 177     // Despite what the spec says, we do need to clamp here to
 178     // be bitexact with libvpx.
 179     p[-1*stride] = cm[p0 + f2];
 180     p[ 0*stride] = cm[q0 - f1];
 181
 182     // only used for _inner on blocks without high edge variance
 183     if (!is4tap) {
 184         a = (f1+1)>>1;
 185         p[-2*stride] = cm[p1 + a];
 186         p[ 1*stride] = cm[q1 - a];
 187     }
 188 }
 189
 190 static av_always_inline int simple_limit(uint8_t *p, ptrdiff_t stride, int flim)
 191 {
 192     LOAD_PIXELS
 193     return 2*FFABS(p0-q0) + (FFABS(p1-q1) >> 1) <= flim;
 194 }
 195
 196 /**
 197  * E - limit at the macroblock edge
 198  * I - limit for interior difference
 199  */
 200 static av_always_inline int normal_limit(uint8_t *p, ptrdiff_t stride, int E, int I)
 201 {
 202     LOAD_PIXELS
 203     return simple_limit(p, stride, E)
 204         && FFABS(p3-p2) <= I && FFABS(p2-p1) <= I && FFABS(p1-p0) <= I
 205         && FFABS(q3-q2) <= I && FFABS(q2-q1) <= I && FFABS(q1-q0) <= I;
 206 }
 207
 208 // high edge variance
 209 static av_always_inline int hev(uint8_t *p, ptrdiff_t stride, int thresh)
 210 {
 211     LOAD_PIXELS
 212     return FFABS(p1-p0) > thresh || FFABS(q1-q0) > thresh;
 213 }
 214
 215 static av_always_inline void filter_mbedge(uint8_t *p, ptrdiff_t stride)
 216 {
 217     int a0, a1, a2, w;
 218     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
 219
 220     LOAD_PIXELS
 221
 222     w = clip_int8(p1-q1);
 223     w = clip_int8(w + 3*(q0-p0));
 224
 225     a0 = (27*w + 63) >> 7;
 226     a1 = (18*w + 63) >> 7;
 227     a2 = ( 9*w + 63) >> 7;
 228
 229     p[-3*stride] = cm[p2 + a2];
 230     p[-2*stride] = cm[p1 + a1];
 231     p[-1*stride] = cm[p0 + a0];
 232     p[ 0*stride] = cm[q0 - a0];
 233     p[ 1*stride] = cm[q1 - a1];
 234     p[ 2*stride] = cm[q2 - a2];
 235 }
 236
 237 #define LOOP_FILTER(dir, size, stridea, strideb, maybe_inline) \
 238 static maybe_inline void vp8_ ## dir ## _loop_filter ## size ## _c(uint8_t *dst, ptrdiff_t stride,\
 239                                      int flim_E, int flim_I, int hev_thresh)\
 240 {\
 241     int i;\
 242 \
 243     for (i = 0; i < size; i++)\
 244         if (normal_limit(dst+i*stridea, strideb, flim_E, flim_I)) {\
 245             if (hev(dst+i*stridea, strideb, hev_thresh))\
 246                 filter_common(dst+i*stridea, strideb, 1);\
 247             else\
 248                 filter_mbedge(dst+i*stridea, strideb);\
 249         }\
 250 }\
 251 \
 252 static maybe_inline void vp8_ ## dir ## _loop_filter ## size ## _inner_c(uint8_t *dst, ptrdiff_t stride,\
 253                                       int flim_E, int flim_I, int hev_thresh)\
 254 {\
 255     int i;\
 256 \
 257     for (i = 0; i < size; i++)\
 258         if (normal_limit(dst+i*stridea, strideb, flim_E, flim_I)) {\
 259             int hv = hev(dst+i*stridea, strideb, hev_thresh);\
 260             if (hv) \
 261                 filter_common(dst+i*stridea, strideb, 1);\
 262             else \
 263                 filter_common(dst+i*stridea, strideb, 0);\
 264         }\
 265 }
 266
 267 LOOP_FILTER(v, 16, 1, stride,)
 268 LOOP_FILTER(h, 16, stride, 1,)
 269
 270 #define UV_LOOP_FILTER(dir, stridea, strideb) \
 271 LOOP_FILTER(dir, 8, stridea, strideb, av_always_inline) \
 272 static void vp8_ ## dir ## _loop_filter8uv_c(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,\
 273                                       int fE, int fI, int hev_thresh)\
 274 {\
 275   vp8_ ## dir ## _loop_filter8_c(dstU, stride, fE, fI, hev_thresh);\
 276   vp8_ ## dir ## _loop_filter8_c(dstV, stride, fE, fI, hev_thresh);\
 277 }\
 278 static void vp8_ ## dir ## _loop_filter8uv_inner_c(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,\
 279                                       int fE, int fI, int hev_thresh)\
 280 {\
 281   vp8_ ## dir ## _loop_filter8_inner_c(dstU, stride, fE, fI, hev_thresh);\
 282   vp8_ ## dir ## _loop_filter8_inner_c(dstV, stride, fE, fI, hev_thresh);\
 283 }
 284
 285 UV_LOOP_FILTER(v, 1, stride)
 286 UV_LOOP_FILTER(h, stride, 1)
 287
 288 static void vp8_v_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, int flim)
 289 {
 290     int i;
 291
 292     for (i = 0; i < 16; i++)
 293         if (simple_limit(dst+i, stride, flim))
 294             filter_common(dst+i, stride, 1);
 295 }
 296
 297 static void vp8_h_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, int flim)
 298 {
 299     int i;
 300
 301     for (i = 0; i < 16; i++)
 302         if (simple_limit(dst+i*stride, 1, flim))
 303             filter_common(dst+i*stride, 1, 1);
 304 }
 305
 306 static const uint8_t subpel_filters[7][6] = {
 307     { 0,   6, 123,  12,   1,   0 },
 308     { 2,  11, 108,  36,   8,   1 },
 309     { 0,   9,  93,  50,   6,   0 },
 310     { 3,  16,  77,  77,  16,   3 },
 311     { 0,   6,  50,  93,   9,   0 },
 312     { 1,   8,  36, 108,  11,   2 },
 313     { 0,   1,  12, 123,   6,   0 },
 314 };
 315
 316 #define PUT_PIXELS(WIDTH) \
 317 static void put_vp8_pixels ## WIDTH ##_c(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride, int h, int x, int y) { \
 318     int i; \
 319     for (i = 0; i < h; i++, dst+= dststride, src+= srcstride) { \
 320         memcpy(dst, src, WIDTH); \
 321     } \
 322 }
 323
 324 PUT_PIXELS(16)
 325 PUT_PIXELS(8)
 326 PUT_PIXELS(4)
 327
 328 #define FILTER_6TAP(src, F, stride) \
 329     cm[(F[2]*src[x+0*stride] - F[1]*src[x-1*stride] + F[0]*src[x-2*stride] + \
 330         F[3]*src[x+1*stride] - F[4]*src[x+2*stride] + F[5]*src[x+3*stride] + 64) >> 7]
 331
 332 #define FILTER_4TAP(src, F, stride) \
 333     cm[(F[2]*src[x+0*stride] - F[1]*src[x-1*stride] + \
 334         F[3]*src[x+1*stride] - F[4]*src[x+2*stride] + 64) >> 7]
 335
 336 #define VP8_EPEL_H(SIZE, TAPS) \
 337 static void put_vp8_epel ## SIZE ## _h ## TAPS ## _c(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride, int h, int mx, int my) \
 338 { \
 339     const uint8_t *filter = subpel_filters[mx-1]; \
 340     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; \
 341     int x, y; \
 342 \
 343     for (y = 0; y < h; y++) { \
 344         for (x = 0; x < SIZE; x++) \
 345             dst[x] = FILTER_ ## TAPS ## TAP(src, filter, 1); \
 346         dst += dststride; \
 347         src += srcstride; \
 348     } \
 349 }
 350 #define VP8_EPEL_V(SIZE, TAPS) \
 351 static void put_vp8_epel ## SIZE ## _v ## TAPS ## _c(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride, int h, int mx, int my) \
 352 { \
 353     const uint8_t *filter = subpel_filters[my-1]; \
 354     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; \
 355     int x, y; \
 356 \
 357     for (y = 0; y < h; y++) { \
 358         for (x = 0; x < SIZE; x++) \
 359             dst[x] = FILTER_ ## TAPS ## TAP(src, filter, srcstride); \
 360         dst += dststride; \
 361         src += srcstride; \
 362     } \
 363 }
 364 #define VP8_EPEL_HV(SIZE, HTAPS, VTAPS) \
 365 static void put_vp8_epel ## SIZE ## _h ## HTAPS ## v ## VTAPS ## _c(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride, int h, int mx, int my) \
 366 { \
 367     const uint8_t *filter = subpel_filters[mx-1]; \
 368     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; \
 369     int x, y; \
 370     uint8_t tmp_array[(2*SIZE+VTAPS-1)*SIZE]; \
 371     uint8_t *tmp = tmp_array; \
 372     src -= (2-(VTAPS==4))*srcstride; \
 373 \
 374     for (y = 0; y < h+VTAPS-1; y++) { \
 375         for (x = 0; x < SIZE; x++) \
 376             tmp[x] = FILTER_ ## HTAPS ## TAP(src, filter, 1); \
 377         tmp += SIZE; \
 378         src += srcstride; \
 379     } \
 380 \
 381     tmp = tmp_array + (2-(VTAPS==4))*SIZE; \
 382     filter = subpel_filters[my-1]; \
 383 \
 384     for (y = 0; y < h; y++) { \
 385         for (x = 0; x < SIZE; x++) \
 386             dst[x] = FILTER_ ## VTAPS ## TAP(tmp, filter, SIZE); \
 387         dst += dststride; \
 388         tmp += SIZE; \
 389     } \
 390 }
 391
 392 VP8_EPEL_H(16, 4)
 393 VP8_EPEL_H(8,  4)
 394 VP8_EPEL_H(4,  4)
 395 VP8_EPEL_H(16, 6)
 396 VP8_EPEL_H(8,  6)
 397 VP8_EPEL_H(4,  6)
 398 VP8_EPEL_V(16, 4)
 399 VP8_EPEL_V(8,  4)
 400 VP8_EPEL_V(4,  4)
 401 VP8_EPEL_V(16, 6)
 402 VP8_EPEL_V(8,  6)
 403 VP8_EPEL_V(4,  6)
 404 VP8_EPEL_HV(16, 4, 4)
 405 VP8_EPEL_HV(8,  4, 4)
 406 VP8_EPEL_HV(4,  4, 4)
 407 VP8_EPEL_HV(16, 4, 6)
 408 VP8_EPEL_HV(8,  4, 6)
 409 VP8_EPEL_HV(4,  4, 6)
 410 VP8_EPEL_HV(16, 6, 4)
 411 VP8_EPEL_HV(8,  6, 4)
 412 VP8_EPEL_HV(4,  6, 4)
 413 VP8_EPEL_HV(16, 6, 6)
 414 VP8_EPEL_HV(8,  6, 6)
 415 VP8_EPEL_HV(4,  6, 6)
 416
 417 #define VP8_BILINEAR(SIZE) \
 418 static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
 419 { \
 420     int a = 8-mx, b = mx; \
 421     int x, y; \
 422 \
 423     for (y = 0; y < h; y++) { \
 424         for (x = 0; x < SIZE; x++) \
 425             dst[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
 426         dst += stride; \
 427         src += stride; \
 428     } \
 429 } \
 430 static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
 431 { \
 432     int c = 8-my, d = my; \
 433     int x, y; \
 434 \
 435     for (y = 0; y < h; y++) { \
 436         for (x = 0; x < SIZE; x++) \
 437             dst[x] = (c*src[x] + d*src[x+stride] + 4) >> 3; \
 438         dst += stride; \
 439         src += stride; \
 440     } \
 441 } \
 442 \
 443 static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
 444 { \
 445     int a = 8-mx, b = mx; \
 446     int c = 8-my, d = my; \
 447     int x, y; \
 448     uint8_t tmp_array[(2*SIZE+1)*SIZE]; \
 449     uint8_t *tmp = tmp_array; \
 450 \
 451     for (y = 0; y < h+1; y++) { \
 452         for (x = 0; x < SIZE; x++) \
 453             tmp[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
 454         tmp += SIZE; \
 455         src += stride; \
 456     } \
 457 \
 458     tmp = tmp_array; \
 459 \
 460     for (y = 0; y < h; y++) { \
 461         for (x = 0; x < SIZE; x++) \
 462             dst[x] = (c*tmp[x] + d*tmp[x+SIZE] + 4) >> 3; \
 463         dst += stride; \
 464         tmp += SIZE; \
 465     } \
 466 }
 467
 468 VP8_BILINEAR(16)
 469 VP8_BILINEAR(8)
 470 VP8_BILINEAR(4)
 471
 472 #define VP8_MC_FUNC(IDX, SIZE) \
 473     dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
 474     dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
 475     dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c; \
 476     dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c; \
 477     dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
 478     dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
 479     dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c; \
 480     dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
 481     dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
 482
 483 #define VP8_BILINEAR_MC_FUNC(IDX, SIZE) \
 484     dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
 485     dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
 486     dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
 487     dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
 488     dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
 489     dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
 490     dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
 491     dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
 492     dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c
 493
 494 av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
 495 {
 496     dsp->vp8_luma_dc_wht    = vp8_luma_dc_wht_c;
 497     dsp->vp8_luma_dc_wht_dc = vp8_luma_dc_wht_dc_c;
 498     dsp->vp8_idct_add       = vp8_idct_add_c;
 499     dsp->vp8_idct_dc_add    = vp8_idct_dc_add_c;
 500     dsp->vp8_idct_dc_add4y  = vp8_idct_dc_add4y_c;
 501     dsp->vp8_idct_dc_add4uv = vp8_idct_dc_add4uv_c;
 502
 503     dsp->vp8_v_loop_filter16y = vp8_v_loop_filter16_c;
 504     dsp->vp8_h_loop_filter16y = vp8_h_loop_filter16_c;
 505     dsp->vp8_v_loop_filter8uv = vp8_v_loop_filter8uv_c;
 506     dsp->vp8_h_loop_filter8uv = vp8_h_loop_filter8uv_c;
 507
 508     dsp->vp8_v_loop_filter16y_inner = vp8_v_loop_filter16_inner_c;
 509     dsp->vp8_h_loop_filter16y_inner = vp8_h_loop_filter16_inner_c;
 510     dsp->vp8_v_loop_filter8uv_inner = vp8_v_loop_filter8uv_inner_c;
 511     dsp->vp8_h_loop_filter8uv_inner = vp8_h_loop_filter8uv_inner_c;
 512
 513     dsp->vp8_v_loop_filter_simple = vp8_v_loop_filter_simple_c;
 514     dsp->vp8_h_loop_filter_simple = vp8_h_loop_filter_simple_c;
 515
 516     VP8_MC_FUNC(0, 16);
 517     VP8_MC_FUNC(1, 8);
 518     VP8_MC_FUNC(2, 4);
 519
 520     VP8_BILINEAR_MC_FUNC(0, 16);
 521     VP8_BILINEAR_MC_FUNC(1, 8);
 522     VP8_BILINEAR_MC_FUNC(2, 4);
 523
 524     if (ARCH_X86)
 525         ff_vp8dsp_init_x86(dsp);
 526     if (HAVE_ALTIVEC)
 527         ff_vp8dsp_init_altivec(dsp);
 528     if (ARCH_ARM)
 529         ff_vp8dsp_init_arm(dsp);
 530 }