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FFmpeg/libavcodec/dsputil.c

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  1. /*

  2.  * DSP utils

  3.  * Copyright (c) 2000, 2001 Fabrice Bellard

  4.  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>

  5.  *

  6.  * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>

  7.  *

  8.  * This file is part of FFmpeg.

  9.  *

  10.  * FFmpeg is free software; you can redistribute it and/or

  11.  * modify it under the terms of the GNU Lesser General Public

  12.  * License as published by the Free Software Foundation; either

  13.  * version 2.1 of the License, or (at your option) any later version.

  14.  *

  15.  * FFmpeg is distributed in the hope that it will be useful,

  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  18.  * Lesser General Public License for more details.

  19.  *

  20.  * You should have received a copy of the GNU Lesser General Public

  21.  * License along with FFmpeg; if not, write to the Free Software

  22.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  23.  */

  24. 

  25. /**

  26.  * @file

  27.  * DSP utils

  28.  */

  29. 

  30. #include "libavutil/attributes.h"

  31. #include "libavutil/imgutils.h"

  32. #include "libavutil/internal.h"

  33. #include "avcodec.h"

  34. #include "copy_block.h"

  35. #include "dct.h"

  36. #include "dsputil.h"

  37. #include "simple_idct.h"

  38. #include "faandct.h"

  39. #include "faanidct.h"

  40. #include "imgconvert.h"

  41. #include "mathops.h"

  42. #include "mpegvideo.h"

  43. #include "config.h"

  44. 

  45. uint32_t ff_square_tab[512] = { 0, };

  46. 

  47. #define BIT_DEPTH 16

  48. #include "dsputilenc_template.c"

  49. #undef BIT_DEPTH

  50. 

  51. #define BIT_DEPTH 8

  52. #include "dsputilenc_template.c"

  53. 

  54. /* Input permutation for the simple_idct_mmx */

  55. static const uint8_t simple_mmx_permutation[64] = {

  56.     0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,

  57.     0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,

  58.     0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,

  59.     0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,

  60.     0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,

  61.     0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,

  62.     0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,

  63.     0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,

  64. };

  65. 

  66. static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };

  67. 

  68. av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st,

  69.                                const uint8_t *src_scantable)

  70. {

  71.     int i, end;

  72. 

  73.     st->scantable = src_scantable;

  74. 

  75.     for (i = 0; i < 64; i++) {

  76.         int j = src_scantable[i];

  77.         st->permutated[i] = permutation[j];

  78.     }

  79. 

  80.     end = -1;

  81.     for (i = 0; i < 64; i++) {

  82.         int j = st->permutated[i];

  83.         if (j > end)

  84.             end = j;

  85.         st->raster_end[i] = end;

  86.     }

  87. }

  88. 

  89. av_cold void ff_init_scantable_permutation(uint8_t *idct_permutation,

  90.                                            int idct_permutation_type)

  91. {

  92.     int i;

  93. 

  94.     switch (idct_permutation_type) {

  95.     case FF_NO_IDCT_PERM:

  96.         for (i = 0; i < 64; i++)

  97.             idct_permutation[i] = i;

  98.         break;

  99.     case FF_LIBMPEG2_IDCT_PERM:

  100.         for (i = 0; i < 64; i++)

  101.             idct_permutation[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);

  102.         break;

  103.     case FF_SIMPLE_IDCT_PERM:

  104.         for (i = 0; i < 64; i++)

  105.             idct_permutation[i] = simple_mmx_permutation[i];

  106.         break;

  107.     case FF_TRANSPOSE_IDCT_PERM:

  108.         for (i = 0; i < 64; i++)

  109.             idct_permutation[i] = ((i & 7) << 3) | (i >> 3);

  110.         break;

  111.     case FF_PARTTRANS_IDCT_PERM:

  112.         for (i = 0; i < 64; i++)

  113.             idct_permutation[i] = (i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3);

  114.         break;

  115.     case FF_SSE2_IDCT_PERM:

  116.         for (i = 0; i < 64; i++)

  117.             idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];

  118.         break;

  119.     default:

  120.         av_log(NULL, AV_LOG_ERROR,

  121.                "Internal error, IDCT permutation not set\n");

  122.     }

  123. }

  124. 

  125. static int pix_sum_c(uint8_t *pix, int line_size)

  126. {

  127.     int s = 0, i, j;

  128. 

  129.     for (i = 0; i < 16; i++) {

  130.         for (j = 0; j < 16; j += 8) {

  131.             s   += pix[0];

  132.             s   += pix[1];

  133.             s   += pix[2];

  134.             s   += pix[3];

  135.             s   += pix[4];

  136.             s   += pix[5];

  137.             s   += pix[6];

  138.             s   += pix[7];

  139.             pix += 8;

  140.         }

  141.         pix += line_size - 16;

  142.     }

  143.     return s;

  144. }

  145. 

  146. static int pix_norm1_c(uint8_t *pix, int line_size)

  147. {

  148.     int s = 0, i, j;

  149.     uint32_t *sq = ff_square_tab + 256;

  150. 

  151.     for (i = 0; i < 16; i++) {

  152.         for (j = 0; j < 16; j += 8) {

  153. #if 0

  154.             s += sq[pix[0]];

  155.             s += sq[pix[1]];

  156.             s += sq[pix[2]];

  157.             s += sq[pix[3]];

  158.             s += sq[pix[4]];

  159.             s += sq[pix[5]];

  160.             s += sq[pix[6]];

  161.             s += sq[pix[7]];

  162. #else

  163. #if HAVE_FAST_64BIT

  164.             register uint64_t x = *(uint64_t *) pix;

  165.             s += sq[x         & 0xff];

  166.             s += sq[(x >>  8) & 0xff];

  167.             s += sq[(x >> 16) & 0xff];

  168.             s += sq[(x >> 24) & 0xff];

  169.             s += sq[(x >> 32) & 0xff];

  170.             s += sq[(x >> 40) & 0xff];

  171.             s += sq[(x >> 48) & 0xff];

  172.             s += sq[(x >> 56) & 0xff];

  173. #else

  174.             register uint32_t x = *(uint32_t *) pix;

  175.             s += sq[x         & 0xff];

  176.             s += sq[(x >>  8) & 0xff];

  177.             s += sq[(x >> 16) & 0xff];

  178.             s += sq[(x >> 24) & 0xff];

  179.             x  = *(uint32_t *) (pix + 4);

  180.             s += sq[x         & 0xff];

  181.             s += sq[(x >>  8) & 0xff];

  182.             s += sq[(x >> 16) & 0xff];

  183.             s += sq[(x >> 24) & 0xff];

  184. #endif

  185. #endif

  186.             pix += 8;

  187.         }

  188.         pix += line_size - 16;

  189.     }

  190.     return s;

  191. }

  192. 

  193. static void bswap_buf(uint32_t *dst, const uint32_t *src, int w)

  194. {

  195.     int i;

  196. 

  197.     for (i = 0; i + 8 <= w; i += 8) {

  198.         dst[i + 0] = av_bswap32(src[i + 0]);

  199.         dst[i + 1] = av_bswap32(src[i + 1]);

  200.         dst[i + 2] = av_bswap32(src[i + 2]);

  201.         dst[i + 3] = av_bswap32(src[i + 3]);

  202.         dst[i + 4] = av_bswap32(src[i + 4]);

  203.         dst[i + 5] = av_bswap32(src[i + 5]);

  204.         dst[i + 6] = av_bswap32(src[i + 6]);

  205.         dst[i + 7] = av_bswap32(src[i + 7]);

  206.     }

  207.     for (; i < w; i++)

  208.         dst[i + 0] = av_bswap32(src[i + 0]);

  209. }

  210. 

  211. static void bswap16_buf(uint16_t *dst, const uint16_t *src, int len)

  212. {

  213.     while (len--)

  214.         *dst++ = av_bswap16(*src++);

  215. }

  216. 

  217. static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  218.                   int line_size, int h)

  219. {

  220.     int s = 0, i;

  221.     uint32_t *sq = ff_square_tab + 256;

  222. 

  223.     for (i = 0; i < h; i++) {

  224.         s    += sq[pix1[0] - pix2[0]];

  225.         s    += sq[pix1[1] - pix2[1]];

  226.         s    += sq[pix1[2] - pix2[2]];

  227.         s    += sq[pix1[3] - pix2[3]];

  228.         pix1 += line_size;

  229.         pix2 += line_size;

  230.     }

  231.     return s;

  232. }

  233. 

  234. static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  235.                   int line_size, int h)

  236. {

  237.     int s = 0, i;

  238.     uint32_t *sq = ff_square_tab + 256;

  239. 

  240.     for (i = 0; i < h; i++) {

  241.         s    += sq[pix1[0] - pix2[0]];

  242.         s    += sq[pix1[1] - pix2[1]];

  243.         s    += sq[pix1[2] - pix2[2]];

  244.         s    += sq[pix1[3] - pix2[3]];

  245.         s    += sq[pix1[4] - pix2[4]];

  246.         s    += sq[pix1[5] - pix2[5]];

  247.         s    += sq[pix1[6] - pix2[6]];

  248.         s    += sq[pix1[7] - pix2[7]];

  249.         pix1 += line_size;

  250.         pix2 += line_size;

  251.     }

  252.     return s;

  253. }

  254. 

  255. static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  256.                    int line_size, int h)

  257. {

  258.     int s = 0, i;

  259.     uint32_t *sq = ff_square_tab + 256;

  260. 

  261.     for (i = 0; i < h; i++) {

  262.         s += sq[pix1[0]  - pix2[0]];

  263.         s += sq[pix1[1]  - pix2[1]];

  264.         s += sq[pix1[2]  - pix2[2]];

  265.         s += sq[pix1[3]  - pix2[3]];

  266.         s += sq[pix1[4]  - pix2[4]];

  267.         s += sq[pix1[5]  - pix2[5]];

  268.         s += sq[pix1[6]  - pix2[6]];

  269.         s += sq[pix1[7]  - pix2[7]];

  270.         s += sq[pix1[8]  - pix2[8]];

  271.         s += sq[pix1[9]  - pix2[9]];

  272.         s += sq[pix1[10] - pix2[10]];

  273.         s += sq[pix1[11] - pix2[11]];

  274.         s += sq[pix1[12] - pix2[12]];

  275.         s += sq[pix1[13] - pix2[13]];

  276.         s += sq[pix1[14] - pix2[14]];

  277.         s += sq[pix1[15] - pix2[15]];

  278. 

  279.         pix1 += line_size;

  280.         pix2 += line_size;

  281.     }

  282.     return s;

  283. }

  284. 

  285. static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1,

  286.                           const uint8_t *s2, int stride)

  287. {

  288.     int i;

  289. 

  290.     /* read the pixels */

  291.     for (i = 0; i < 8; i++) {

  292.         block[0] = s1[0] - s2[0];

  293.         block[1] = s1[1] - s2[1];

  294.         block[2] = s1[2] - s2[2];

  295.         block[3] = s1[3] - s2[3];

  296.         block[4] = s1[4] - s2[4];

  297.         block[5] = s1[5] - s2[5];

  298.         block[6] = s1[6] - s2[6];

  299.         block[7] = s1[7] - s2[7];

  300.         s1      += stride;

  301.         s2      += stride;

  302.         block   += 8;

  303.     }

  304. }

  305. 

  306. static void put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,

  307.                                  int line_size)

  308. {

  309.     int i;

  310. 

  311.     /* read the pixels */

  312.     for (i = 0; i < 8; i++) {

  313.         pixels[0] = av_clip_uint8(block[0]);

  314.         pixels[1] = av_clip_uint8(block[1]);

  315.         pixels[2] = av_clip_uint8(block[2]);

  316.         pixels[3] = av_clip_uint8(block[3]);

  317.         pixels[4] = av_clip_uint8(block[4]);

  318.         pixels[5] = av_clip_uint8(block[5]);

  319.         pixels[6] = av_clip_uint8(block[6]);

  320.         pixels[7] = av_clip_uint8(block[7]);

  321. 

  322.         pixels += line_size;

  323.         block  += 8;

  324.     }

  325. }

  326. 

  327. static void put_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,

  328.                                  int line_size)

  329. {

  330.     int i;

  331. 

  332.     /* read the pixels */

  333.     for(i=0;i<4;i++) {

  334.         pixels[0] = av_clip_uint8(block[0]);

  335.         pixels[1] = av_clip_uint8(block[1]);

  336.         pixels[2] = av_clip_uint8(block[2]);

  337.         pixels[3] = av_clip_uint8(block[3]);

  338. 

  339.         pixels += line_size;

  340.         block += 8;

  341.     }

  342. }

  343. 

  344. static void put_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,

  345.                                  int line_size)

  346. {

  347.     int i;

  348. 

  349.     /* read the pixels */

  350.     for(i=0;i<2;i++) {

  351.         pixels[0] = av_clip_uint8(block[0]);

  352.         pixels[1] = av_clip_uint8(block[1]);

  353. 

  354.         pixels += line_size;

  355.         block += 8;

  356.     }

  357. }

  358. 

  359. static void put_signed_pixels_clamped_c(const int16_t *block,

  360.                                         uint8_t *av_restrict pixels,

  361.                                         int line_size)

  362. {

  363.     int i, j;

  364. 

  365.     for (i = 0; i < 8; i++) {

  366.         for (j = 0; j < 8; j++) {

  367.             if (*block < -128)

  368.                 *pixels = 0;

  369.             else if (*block > 127)

  370.                 *pixels = 255;

  371.             else

  372.                 *pixels = (uint8_t) (*block + 128);

  373.             block++;

  374.             pixels++;

  375.         }

  376.         pixels += (line_size - 8);

  377.     }

  378. }

  379. 

  380. static void add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,

  381.                                  int line_size)

  382. {

  383.     int i;

  384. 

  385.     /* read the pixels */

  386.     for (i = 0; i < 8; i++) {

  387.         pixels[0] = av_clip_uint8(pixels[0] + block[0]);

  388.         pixels[1] = av_clip_uint8(pixels[1] + block[1]);

  389.         pixels[2] = av_clip_uint8(pixels[2] + block[2]);

  390.         pixels[3] = av_clip_uint8(pixels[3] + block[3]);

  391.         pixels[4] = av_clip_uint8(pixels[4] + block[4]);

  392.         pixels[5] = av_clip_uint8(pixels[5] + block[5]);

  393.         pixels[6] = av_clip_uint8(pixels[6] + block[6]);

  394.         pixels[7] = av_clip_uint8(pixels[7] + block[7]);

  395.         pixels   += line_size;

  396.         block    += 8;

  397.     }

  398. }

  399. 

  400. static void add_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,

  401.                           int line_size)

  402. {

  403.     int i;

  404. 

  405.     /* read the pixels */

  406.     for(i=0;i<4;i++) {

  407.         pixels[0] = av_clip_uint8(pixels[0] + block[0]);

  408.         pixels[1] = av_clip_uint8(pixels[1] + block[1]);

  409.         pixels[2] = av_clip_uint8(pixels[2] + block[2]);

  410.         pixels[3] = av_clip_uint8(pixels[3] + block[3]);

  411.         pixels += line_size;

  412.         block += 8;

  413.     }

  414. }

  415. 

  416. static void add_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,

  417.                           int line_size)

  418. {

  419.     int i;

  420. 

  421.     /* read the pixels */

  422.     for(i=0;i<2;i++) {

  423.         pixels[0] = av_clip_uint8(pixels[0] + block[0]);

  424.         pixels[1] = av_clip_uint8(pixels[1] + block[1]);

  425.         pixels += line_size;

  426.         block += 8;

  427.     }

  428. }

  429. 

  430. static int sum_abs_dctelem_c(int16_t *block)

  431. {

  432.     int sum = 0, i;

  433. 

  434.     for (i = 0; i < 64; i++)

  435.         sum += FFABS(block[i]);

  436.     return sum;

  437. }

  438. 

  439. #define avg2(a, b) ((a + b + 1) >> 1)

  440. #define avg4(a, b, c, d) ((a + b + c + d + 2) >> 2)

  441. 

  442. static void gmc1_c(uint8_t *dst, uint8_t *src, int stride, int h,

  443.                    int x16, int y16, int rounder)

  444. {

  445.     const int A = (16 - x16) * (16 - y16);

  446.     const int B = (x16)      * (16 - y16);

  447.     const int C = (16 - x16) * (y16);

  448.     const int D = (x16)      * (y16);

  449.     int i;

  450. 

  451.     for (i = 0; i < h; i++) {

  452.         dst[0] = (A * src[0] + B * src[1] + C * src[stride + 0] + D * src[stride + 1] + rounder) >> 8;

  453.         dst[1] = (A * src[1] + B * src[2] + C * src[stride + 1] + D * src[stride + 2] + rounder) >> 8;

  454.         dst[2] = (A * src[2] + B * src[3] + C * src[stride + 2] + D * src[stride + 3] + rounder) >> 8;

  455.         dst[3] = (A * src[3] + B * src[4] + C * src[stride + 3] + D * src[stride + 4] + rounder) >> 8;

  456.         dst[4] = (A * src[4] + B * src[5] + C * src[stride + 4] + D * src[stride + 5] + rounder) >> 8;

  457.         dst[5] = (A * src[5] + B * src[6] + C * src[stride + 5] + D * src[stride + 6] + rounder) >> 8;

  458.         dst[6] = (A * src[6] + B * src[7] + C * src[stride + 6] + D * src[stride + 7] + rounder) >> 8;

  459.         dst[7] = (A * src[7] + B * src[8] + C * src[stride + 7] + D * src[stride + 8] + rounder) >> 8;

  460.         dst   += stride;

  461.         src   += stride;

  462.     }

  463. }

  464. 

  465. void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,

  466.               int dxx, int dxy, int dyx, int dyy, int shift, int r,

  467.               int width, int height)

  468. {

  469.     int y, vx, vy;

  470.     const int s = 1 << shift;

  471. 

  472.     width--;

  473.     height--;

  474. 

  475.     for (y = 0; y < h; y++) {

  476.         int x;

  477. 

  478.         vx = ox;

  479.         vy = oy;

  480.         for (x = 0; x < 8; x++) { // FIXME: optimize

  481.             int index;

  482.             int src_x  = vx >> 16;

  483.             int src_y  = vy >> 16;

  484.             int frac_x = src_x & (s - 1);

  485.             int frac_y = src_y & (s - 1);

  486. 

  487.             src_x >>= shift;

  488.             src_y >>= shift;

  489. 

  490.             if ((unsigned) src_x < width) {

  491.                 if ((unsigned) src_y < height) {

  492.                     index = src_x + src_y * stride;

  493.                     dst[y * stride + x] =

  494.                         ((src[index]                        * (s - frac_x) +

  495.                           src[index + 1]          * frac_x) * (s - frac_y) +

  496.                          (src[index + stride]               * (s - frac_x) +

  497.                           src[index + stride + 1] * frac_x) *      frac_y  +

  498.                          r) >> (shift * 2);

  499.                 } else {

  500.                     index = src_x + av_clip(src_y, 0, height) * stride;

  501.                     dst[y * stride + x] =

  502.                         ((src[index]               * (s - frac_x) +

  503.                           src[index + 1] * frac_x) *  s           +

  504.                          r) >> (shift * 2);

  505.                 }

  506.             } else {

  507.                 if ((unsigned) src_y < height) {

  508.                     index = av_clip(src_x, 0, width) + src_y * stride;

  509.                     dst[y * stride + x] =

  510.                         ((src[index]                    * (s - frac_y) +

  511.                           src[index + stride] * frac_y) *  s           +

  512.                          r) >> (shift * 2);

  513.                 } else {

  514.                     index = av_clip(src_x, 0, width) +

  515.                             av_clip(src_y, 0, height) * stride;

  516.                     dst[y * stride + x] = src[index];

  517.                 }

  518.             }

  519. 

  520.             vx += dxx;

  521.             vy += dyx;

  522.         }

  523.         ox += dxy;

  524.         oy += dyy;

  525.     }

  526. }

  527. 

  528. static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  529.                               int line_size, int h)

  530. {

  531.     int s = 0, i;

  532. 

  533.     for (i = 0; i < h; i++) {

  534.         s    += abs(pix1[0]  - pix2[0]);

  535.         s    += abs(pix1[1]  - pix2[1]);

  536.         s    += abs(pix1[2]  - pix2[2]);

  537.         s    += abs(pix1[3]  - pix2[3]);

  538.         s    += abs(pix1[4]  - pix2[4]);

  539.         s    += abs(pix1[5]  - pix2[5]);

  540.         s    += abs(pix1[6]  - pix2[6]);

  541.         s    += abs(pix1[7]  - pix2[7]);

  542.         s    += abs(pix1[8]  - pix2[8]);

  543.         s    += abs(pix1[9]  - pix2[9]);

  544.         s    += abs(pix1[10] - pix2[10]);

  545.         s    += abs(pix1[11] - pix2[11]);

  546.         s    += abs(pix1[12] - pix2[12]);

  547.         s    += abs(pix1[13] - pix2[13]);

  548.         s    += abs(pix1[14] - pix2[14]);

  549.         s    += abs(pix1[15] - pix2[15]);

  550.         pix1 += line_size;

  551.         pix2 += line_size;

  552.     }

  553.     return s;

  554. }

  555. 

  556. static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  557.                           int line_size, int h)

  558. {

  559.     int s = 0, i;

  560. 

  561.     for (i = 0; i < h; i++) {

  562.         s    += abs(pix1[0]  - avg2(pix2[0],  pix2[1]));

  563.         s    += abs(pix1[1]  - avg2(pix2[1],  pix2[2]));

  564.         s    += abs(pix1[2]  - avg2(pix2[2],  pix2[3]));

  565.         s    += abs(pix1[3]  - avg2(pix2[3],  pix2[4]));

  566.         s    += abs(pix1[4]  - avg2(pix2[4],  pix2[5]));

  567.         s    += abs(pix1[5]  - avg2(pix2[5],  pix2[6]));

  568.         s    += abs(pix1[6]  - avg2(pix2[6],  pix2[7]));

  569.         s    += abs(pix1[7]  - avg2(pix2[7],  pix2[8]));

  570.         s    += abs(pix1[8]  - avg2(pix2[8],  pix2[9]));

  571.         s    += abs(pix1[9]  - avg2(pix2[9],  pix2[10]));

  572.         s    += abs(pix1[10] - avg2(pix2[10], pix2[11]));

  573.         s    += abs(pix1[11] - avg2(pix2[11], pix2[12]));

  574.         s    += abs(pix1[12] - avg2(pix2[12], pix2[13]));

  575.         s    += abs(pix1[13] - avg2(pix2[13], pix2[14]));

  576.         s    += abs(pix1[14] - avg2(pix2[14], pix2[15]));

  577.         s    += abs(pix1[15] - avg2(pix2[15], pix2[16]));

  578.         pix1 += line_size;

  579.         pix2 += line_size;

  580.     }

  581.     return s;

  582. }

  583. 

  584. static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  585.                           int line_size, int h)

  586. {

  587.     int s = 0, i;

  588.     uint8_t *pix3 = pix2 + line_size;

  589. 

  590.     for (i = 0; i < h; i++) {

  591.         s    += abs(pix1[0]  - avg2(pix2[0],  pix3[0]));

  592.         s    += abs(pix1[1]  - avg2(pix2[1],  pix3[1]));

  593.         s    += abs(pix1[2]  - avg2(pix2[2],  pix3[2]));

  594.         s    += abs(pix1[3]  - avg2(pix2[3],  pix3[3]));

  595.         s    += abs(pix1[4]  - avg2(pix2[4],  pix3[4]));

  596.         s    += abs(pix1[5]  - avg2(pix2[5],  pix3[5]));

  597.         s    += abs(pix1[6]  - avg2(pix2[6],  pix3[6]));

  598.         s    += abs(pix1[7]  - avg2(pix2[7],  pix3[7]));

  599.         s    += abs(pix1[8]  - avg2(pix2[8],  pix3[8]));

  600.         s    += abs(pix1[9]  - avg2(pix2[9],  pix3[9]));

  601.         s    += abs(pix1[10] - avg2(pix2[10], pix3[10]));

  602.         s    += abs(pix1[11] - avg2(pix2[11], pix3[11]));

  603.         s    += abs(pix1[12] - avg2(pix2[12], pix3[12]));

  604.         s    += abs(pix1[13] - avg2(pix2[13], pix3[13]));

  605.         s    += abs(pix1[14] - avg2(pix2[14], pix3[14]));

  606.         s    += abs(pix1[15] - avg2(pix2[15], pix3[15]));

  607.         pix1 += line_size;

  608.         pix2 += line_size;

  609.         pix3 += line_size;

  610.     }

  611.     return s;

  612. }

  613. 

  614. static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  615.                            int line_size, int h)

  616. {

  617.     int s = 0, i;

  618.     uint8_t *pix3 = pix2 + line_size;

  619. 

  620.     for (i = 0; i < h; i++) {

  621.         s    += abs(pix1[0]  - avg4(pix2[0],  pix2[1],  pix3[0],  pix3[1]));

  622.         s    += abs(pix1[1]  - avg4(pix2[1],  pix2[2],  pix3[1],  pix3[2]));

  623.         s    += abs(pix1[2]  - avg4(pix2[2],  pix2[3],  pix3[2],  pix3[3]));

  624.         s    += abs(pix1[3]  - avg4(pix2[3],  pix2[4],  pix3[3],  pix3[4]));

  625.         s    += abs(pix1[4]  - avg4(pix2[4],  pix2[5],  pix3[4],  pix3[5]));

  626.         s    += abs(pix1[5]  - avg4(pix2[5],  pix2[6],  pix3[5],  pix3[6]));

  627.         s    += abs(pix1[6]  - avg4(pix2[6],  pix2[7],  pix3[6],  pix3[7]));

  628.         s    += abs(pix1[7]  - avg4(pix2[7],  pix2[8],  pix3[7],  pix3[8]));

  629.         s    += abs(pix1[8]  - avg4(pix2[8],  pix2[9],  pix3[8],  pix3[9]));

  630.         s    += abs(pix1[9]  - avg4(pix2[9],  pix2[10], pix3[9],  pix3[10]));

  631.         s    += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));

  632.         s    += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));

  633.         s    += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));

  634.         s    += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));

  635.         s    += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));

  636.         s    += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));

  637.         pix1 += line_size;

  638.         pix2 += line_size;

  639.         pix3 += line_size;

  640.     }

  641.     return s;

  642. }

  643. 

  644. static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  645.                              int line_size, int h)

  646. {

  647.     int s = 0, i;

  648. 

  649.     for (i = 0; i < h; i++) {

  650.         s    += abs(pix1[0] - pix2[0]);

  651.         s    += abs(pix1[1] - pix2[1]);

  652.         s    += abs(pix1[2] - pix2[2]);

  653.         s    += abs(pix1[3] - pix2[3]);

  654.         s    += abs(pix1[4] - pix2[4]);

  655.         s    += abs(pix1[5] - pix2[5]);

  656.         s    += abs(pix1[6] - pix2[6]);

  657.         s    += abs(pix1[7] - pix2[7]);

  658.         pix1 += line_size;

  659.         pix2 += line_size;

  660.     }

  661.     return s;

  662. }

  663. 

  664. static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  665.                          int line_size, int h)

  666. {

  667.     int s = 0, i;

  668. 

  669.     for (i = 0; i < h; i++) {

  670.         s    += abs(pix1[0] - avg2(pix2[0], pix2[1]));

  671.         s    += abs(pix1[1] - avg2(pix2[1], pix2[2]));

  672.         s    += abs(pix1[2] - avg2(pix2[2], pix2[3]));

  673.         s    += abs(pix1[3] - avg2(pix2[3], pix2[4]));

  674.         s    += abs(pix1[4] - avg2(pix2[4], pix2[5]));

  675.         s    += abs(pix1[5] - avg2(pix2[5], pix2[6]));

  676.         s    += abs(pix1[6] - avg2(pix2[6], pix2[7]));

  677.         s    += abs(pix1[7] - avg2(pix2[7], pix2[8]));

  678.         pix1 += line_size;

  679.         pix2 += line_size;

  680.     }

  681.     return s;

  682. }

  683. 

  684. static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  685.                          int line_size, int h)

  686. {

  687.     int s = 0, i;

  688.     uint8_t *pix3 = pix2 + line_size;

  689. 

  690.     for (i = 0; i < h; i++) {

  691.         s    += abs(pix1[0] - avg2(pix2[0], pix3[0]));

  692.         s    += abs(pix1[1] - avg2(pix2[1], pix3[1]));

  693.         s    += abs(pix1[2] - avg2(pix2[2], pix3[2]));

  694.         s    += abs(pix1[3] - avg2(pix2[3], pix3[3]));

  695.         s    += abs(pix1[4] - avg2(pix2[4], pix3[4]));

  696.         s    += abs(pix1[5] - avg2(pix2[5], pix3[5]));

  697.         s    += abs(pix1[6] - avg2(pix2[6], pix3[6]));

  698.         s    += abs(pix1[7] - avg2(pix2[7], pix3[7]));

  699.         pix1 += line_size;

  700.         pix2 += line_size;

  701.         pix3 += line_size;

  702.     }

  703.     return s;

  704. }

  705. 

  706. static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,

  707.                           int line_size, int h)

  708. {

  709.     int s = 0, i;

  710.     uint8_t *pix3 = pix2 + line_size;

  711. 

  712.     for (i = 0; i < h; i++) {

  713.         s    += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));

  714.         s    += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));

  715.         s    += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));

  716.         s    += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));

  717.         s    += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));

  718.         s    += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));

  719.         s    += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));

  720.         s    += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));

  721.         pix1 += line_size;

  722.         pix2 += line_size;

  723.         pix3 += line_size;

  724.     }

  725.     return s;

  726. }

  727. 

  728. static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, int stride, int h)

  729. {

  730.     int score1 = 0, score2 = 0, x, y;

  731. 

  732.     for (y = 0; y < h; y++) {

  733.         for (x = 0; x < 16; x++)

  734.             score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);

  735.         if (y + 1 < h) {

  736.             for (x = 0; x < 15; x++)

  737.                 score2 += FFABS(s1[x]     - s1[x + stride] -

  738.                                 s1[x + 1] + s1[x + stride + 1]) -

  739.                           FFABS(s2[x]     - s2[x + stride] -

  740.                                 s2[x + 1] + s2[x + stride + 1]);

  741.         }

  742.         s1 += stride;

  743.         s2 += stride;

  744.     }

  745. 

  746.     if (c)

  747.         return score1 + FFABS(score2) * c->avctx->nsse_weight;

  748.     else

  749.         return score1 + FFABS(score2) * 8;

  750. }

  751. 

  752. static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, int stride, int h)

  753. {

  754.     int score1 = 0, score2 = 0, x, y;

  755. 

  756.     for (y = 0; y < h; y++) {

  757.         for (x = 0; x < 8; x++)

  758.             score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);

  759.         if (y + 1 < h) {

  760.             for (x = 0; x < 7; x++)

  761.                 score2 += FFABS(s1[x]     - s1[x + stride] -

  762.                                 s1[x + 1] + s1[x + stride + 1]) -

  763.                           FFABS(s2[x]     - s2[x + stride] -

  764.                                 s2[x + 1] + s2[x + stride + 1]);

  765.         }

  766.         s1 += stride;

  767.         s2 += stride;

  768.     }

  769. 

  770.     if (c)

  771.         return score1 + FFABS(score2) * c->avctx->nsse_weight;

  772.     else

  773.         return score1 + FFABS(score2) * 8;

  774. }

  775. 

  776. static int try_8x8basis_c(int16_t rem[64], int16_t weight[64],

  777.                           int16_t basis[64], int scale)

  778. {

  779.     int i;

  780.     unsigned int sum = 0;

  781. 

  782.     for (i = 0; i < 8 * 8; i++) {

  783.         int b = rem[i] + ((basis[i] * scale +

  784.                            (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>

  785.                           (BASIS_SHIFT - RECON_SHIFT));

  786.         int w = weight[i];

  787.         b >>= RECON_SHIFT;

  788.         av_assert2(-512 < b && b < 512);

  789. 

  790.         sum += (w * b) * (w * b) >> 4;

  791.     }

  792.     return sum >> 2;

  793. }

  794. 

  795. static void add_8x8basis_c(int16_t rem[64], int16_t basis[64], int scale)

  796. {

  797.     int i;

  798. 

  799.     for (i = 0; i < 8 * 8; i++)

  800.         rem[i] += (basis[i] * scale +

  801.                    (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >>

  802.                   (BASIS_SHIFT - RECON_SHIFT);

  803. }

  804. 

  805. static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,

  806.                     int stride, int h)

  807. {

  808.     return 0;

  809. }

  810. 

  811. void ff_set_cmp(DSPContext *c, me_cmp_func *cmp, int type)

  812. {

  813.     int i;

  814. 

  815.     memset(cmp, 0, sizeof(void *) * 6);

  816. 

  817.     for (i = 0; i < 6; i++) {

  818.         switch (type & 0xFF) {

  819.         case FF_CMP_SAD:

  820.             cmp[i] = c->sad[i];

  821.             break;

  822.         case FF_CMP_SATD:

  823.             cmp[i] = c->hadamard8_diff[i];

  824.             break;

  825.         case FF_CMP_SSE:

  826.             cmp[i] = c->sse[i];

  827.             break;

  828.         case FF_CMP_DCT:

  829.             cmp[i] = c->dct_sad[i];

  830.             break;

  831.         case FF_CMP_DCT264:

  832.             cmp[i] = c->dct264_sad[i];

  833.             break;

  834.         case FF_CMP_DCTMAX:

  835.             cmp[i] = c->dct_max[i];

  836.             break;

  837.         case FF_CMP_PSNR:

  838.             cmp[i] = c->quant_psnr[i];

  839.             break;

  840.         case FF_CMP_BIT:

  841.             cmp[i] = c->bit[i];

  842.             break;

  843.         case FF_CMP_RD:

  844.             cmp[i] = c->rd[i];

  845.             break;

  846.         case FF_CMP_VSAD:

  847.             cmp[i] = c->vsad[i];

  848.             break;

  849.         case FF_CMP_VSSE:

  850.             cmp[i] = c->vsse[i];

  851.             break;

  852.         case FF_CMP_ZERO:

  853.             cmp[i] = zero_cmp;

  854.             break;

  855.         case FF_CMP_NSSE:

  856.             cmp[i] = c->nsse[i];

  857.             break;

  858. #if CONFIG_DWT

  859.         case FF_CMP_W53:

  860.             cmp[i]= c->w53[i];

  861.             break;

  862.         case FF_CMP_W97:

  863.             cmp[i]= c->w97[i];

  864.             break;

  865. #endif

  866.         default:

  867.             av_log(NULL, AV_LOG_ERROR,

  868.                    "internal error in cmp function selection\n");

  869.         }

  870.     }

  871. }

  872. 

  873. #define BUTTERFLY2(o1, o2, i1, i2)              \

  874.     o1 = (i1) + (i2);                           \

  875.     o2 = (i1) - (i2);

  876. 

  877. #define BUTTERFLY1(x, y)                        \

  878.     {                                           \

  879.         int a, b;                               \

  880.         a = x;                                  \

  881.         b = y;                                  \

  882.         x = a + b;                              \

  883.         y = a - b;                              \

  884.     }

  885. 

  886. #define BUTTERFLYA(x, y) (FFABS((x) + (y)) + FFABS((x) - (y)))

  887. 

  888. static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst,

  889.                                uint8_t *src, int stride, int h)

  890. {

  891.     int i, temp[64], sum = 0;

  892. 

  893.     av_assert2(h == 8);

  894. 

  895.     for (i = 0; i < 8; i++) {

  896.         // FIXME: try pointer walks

  897.         BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],

  898.                    src[stride * i + 0] - dst[stride * i + 0],

  899.                    src[stride * i + 1] - dst[stride * i + 1]);

  900.         BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],

  901.                    src[stride * i + 2] - dst[stride * i + 2],

  902.                    src[stride * i + 3] - dst[stride * i + 3]);

  903.         BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],

  904.                    src[stride * i + 4] - dst[stride * i + 4],

  905.                    src[stride * i + 5] - dst[stride * i + 5]);

  906.         BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],

  907.                    src[stride * i + 6] - dst[stride * i + 6],

  908.                    src[stride * i + 7] - dst[stride * i + 7]);

  909. 

  910.         BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);

  911.         BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);

  912.         BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);

  913.         BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);

  914. 

  915.         BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);

  916.         BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);

  917.         BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);

  918.         BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);

  919.     }

  920. 

  921.     for (i = 0; i < 8; i++) {

  922.         BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);

  923.         BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);

  924.         BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);

  925.         BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);

  926. 

  927.         BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);

  928.         BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);

  929.         BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);

  930.         BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);

  931. 

  932.         sum += BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i]) +

  933.                BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i]) +

  934.                BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i]) +

  935.                BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);

  936.     }

  937.     return sum;

  938. }

  939. 

  940. static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src,

  941.                                 uint8_t *dummy, int stride, int h)

  942. {

  943.     int i, temp[64], sum = 0;

  944. 

  945.     av_assert2(h == 8);

  946. 

  947.     for (i = 0; i < 8; i++) {

  948.         // FIXME: try pointer walks

  949.         BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],

  950.                    src[stride * i + 0], src[stride * i + 1]);

  951.         BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],

  952.                    src[stride * i + 2], src[stride * i + 3]);

  953.         BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],

  954.                    src[stride * i + 4], src[stride * i + 5]);

  955.         BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],

  956.                    src[stride * i + 6], src[stride * i + 7]);

  957. 

  958.         BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);

  959.         BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);

  960.         BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);

  961.         BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);

  962. 

  963.         BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);

  964.         BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);

  965.         BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);

  966.         BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);

  967.     }

  968. 

  969.     for (i = 0; i < 8; i++) {

  970.         BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);

  971.         BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);

  972.         BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);

  973.         BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);

  974. 

  975.         BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);

  976.         BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);

  977.         BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);

  978.         BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);

  979. 

  980.         sum +=

  981.             BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i])

  982.             + BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i])

  983.             + BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i])

  984.             + BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);

  985.     }

  986. 

  987.     sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean

  988. 

  989.     return sum;

  990. }

  991. 

  992. static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1,

  993.                         uint8_t *src2, int stride, int h)

  994. {

  995.     LOCAL_ALIGNED_16(int16_t, temp, [64]);

  996. 

  997.     av_assert2(h == 8);

  998. 

  999.     s->dsp.diff_pixels(temp, src1, src2, stride);

  1000.     s->dsp.fdct(temp);

  1001.     return s->dsp.sum_abs_dctelem(temp);

  1002. }

  1003. 

  1004. #if CONFIG_GPL

  1005. #define DCT8_1D                                         \

  1006.     {                                                   \

  1007.         const int s07 = SRC(0) + SRC(7);                \

  1008.         const int s16 = SRC(1) + SRC(6);                \

  1009.         const int s25 = SRC(2) + SRC(5);                \

  1010.         const int s34 = SRC(3) + SRC(4);                \

  1011.         const int a0  = s07 + s34;                      \

  1012.         const int a1  = s16 + s25;                      \

  1013.         const int a2  = s07 - s34;                      \

  1014.         const int a3  = s16 - s25;                      \

  1015.         const int d07 = SRC(0) - SRC(7);                \

  1016.         const int d16 = SRC(1) - SRC(6);                \

  1017.         const int d25 = SRC(2) - SRC(5);                \

  1018.         const int d34 = SRC(3) - SRC(4);                \

  1019.         const int a4  = d16 + d25 + (d07 + (d07 >> 1)); \

  1020.         const int a5  = d07 - d34 - (d25 + (d25 >> 1)); \

  1021.         const int a6  = d07 + d34 - (d16 + (d16 >> 1)); \

  1022.         const int a7  = d16 - d25 + (d34 + (d34 >> 1)); \

  1023.         DST(0, a0 + a1);                                \

  1024.         DST(1, a4 + (a7 >> 2));                         \

  1025.         DST(2, a2 + (a3 >> 1));                         \

  1026.         DST(3, a5 + (a6 >> 2));                         \

  1027.         DST(4, a0 - a1);                                \

  1028.         DST(5, a6 - (a5 >> 2));                         \

  1029.         DST(6, (a2 >> 1) - a3);                         \

  1030.         DST(7, (a4 >> 2) - a7);                         \

  1031.     }

  1032. 

  1033. static int dct264_sad8x8_c(MpegEncContext *s, uint8_t *src1,

  1034.                            uint8_t *src2, int stride, int h)

  1035. {

  1036.     int16_t dct[8][8];

  1037.     int i, sum = 0;

  1038. 

  1039.     s->dsp.diff_pixels(dct[0], src1, src2, stride);

  1040. 

  1041. #define SRC(x) dct[i][x]

  1042. #define DST(x, v) dct[i][x] = v

  1043.     for (i = 0; i < 8; i++)

  1044.         DCT8_1D

  1045. #undef SRC

  1046. #undef DST

  1047. 

  1048. #define SRC(x) dct[x][i]

  1049. #define DST(x, v) sum += FFABS(v)

  1050.         for (i = 0; i < 8; i++)

  1051.             DCT8_1D

  1052. #undef SRC

  1053. #undef DST

  1054.             return sum;

  1055. }

  1056. #endif

  1057. 

  1058. static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1,

  1059.                         uint8_t *src2, int stride, int h)

  1060. {

  1061.     LOCAL_ALIGNED_16(int16_t, temp, [64]);

  1062.     int sum = 0, i;

  1063. 

  1064.     av_assert2(h == 8);

  1065. 

  1066.     s->dsp.diff_pixels(temp, src1, src2, stride);

  1067.     s->dsp.fdct(temp);

  1068. 

  1069.     for (i = 0; i < 64; i++)

  1070.         sum = FFMAX(sum, FFABS(temp[i]));

  1071. 

  1072.     return sum;

  1073. }

  1074. 

  1075. static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1,

  1076.                            uint8_t *src2, int stride, int h)

  1077. {

  1078.     LOCAL_ALIGNED_16(int16_t, temp, [64 * 2]);

  1079.     int16_t *const bak = temp + 64;

  1080.     int sum = 0, i;

  1081. 

  1082.     av_assert2(h == 8);

  1083.     s->mb_intra = 0;

  1084. 

  1085.     s->dsp.diff_pixels(temp, src1, src2, stride);

  1086. 

  1087.     memcpy(bak, temp, 64 * sizeof(int16_t));

  1088. 

  1089.     s->block_last_index[0 /* FIXME */] =

  1090.         s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);

  1091.     s->dct_unquantize_inter(s, temp, 0, s->qscale);

  1092.     ff_simple_idct_8(temp); // FIXME

  1093. 

  1094.     for (i = 0; i < 64; i++)

  1095.         sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);

  1096. 

  1097.     return sum;

  1098. }

  1099. 

  1100. static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,

  1101.                    int stride, int h)

  1102. {

  1103.     const uint8_t *scantable = s->intra_scantable.permutated;

  1104.     LOCAL_ALIGNED_16(int16_t, temp, [64]);

  1105.     LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);

  1106.     LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);

  1107.     int i, last, run, bits, level, distortion, start_i;

  1108.     const int esc_length = s->ac_esc_length;

  1109.     uint8_t *length, *last_length;

  1110. 

  1111.     av_assert2(h == 8);

  1112. 

  1113.     copy_block8(lsrc1, src1, 8, stride, 8);

  1114.     copy_block8(lsrc2, src2, 8, stride, 8);

  1115. 

  1116.     s->dsp.diff_pixels(temp, lsrc1, lsrc2, 8);

  1117. 

  1118.     s->block_last_index[0 /* FIXME */] =

  1119.     last                               =

  1120.         s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);

  1121. 

  1122.     bits = 0;

  1123. 

  1124.     if (s->mb_intra) {

  1125.         start_i     = 1;

  1126.         length      = s->intra_ac_vlc_length;

  1127.         last_length = s->intra_ac_vlc_last_length;

  1128.         bits       += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma

  1129.     } else {

  1130.         start_i     = 0;

  1131.         length      = s->inter_ac_vlc_length;

  1132.         last_length = s->inter_ac_vlc_last_length;

  1133.     }

  1134. 

  1135.     if (last >= start_i) {

  1136.         run = 0;

  1137.         for (i = start_i; i < last; i++) {

  1138.             int j = scantable[i];

  1139.             level = temp[j];

  1140. 

  1141.             if (level) {

  1142.                 level += 64;

  1143.                 if ((level & (~127)) == 0)

  1144.                     bits += length[UNI_AC_ENC_INDEX(run, level)];

  1145.                 else

  1146.                     bits += esc_length;

  1147.                 run = 0;

  1148.             } else

  1149.                 run++;

  1150.         }

  1151.         i = scantable[last];

  1152. 

  1153.         level = temp[i] + 64;

  1154. 

  1155.         av_assert2(level - 64);

  1156. 

  1157.         if ((level & (~127)) == 0) {

  1158.             bits += last_length[UNI_AC_ENC_INDEX(run, level)];

  1159.         } else

  1160.             bits += esc_length;

  1161.     }

  1162. 

  1163.     if (last >= 0) {

  1164.         if (s->mb_intra)

  1165.             s->dct_unquantize_intra(s, temp, 0, s->qscale);

  1166.         else

  1167.             s->dct_unquantize_inter(s, temp, 0, s->qscale);

  1168.     }

  1169. 

  1170.     s->dsp.idct_add(lsrc2, 8, temp);

  1171. 

  1172.     distortion = s->dsp.sse[1](NULL, lsrc2, lsrc1, 8, 8);

  1173. 

  1174.     return distortion + ((bits * s->qscale * s->qscale * 109 + 64) >> 7);

  1175. }

  1176. 

  1177. static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,

  1178.                     int stride, int h)

  1179. {

  1180.     const uint8_t *scantable = s->intra_scantable.permutated;

  1181.     LOCAL_ALIGNED_16(int16_t, temp, [64]);

  1182.     int i, last, run, bits, level, start_i;

  1183.     const int esc_length = s->ac_esc_length;

  1184.     uint8_t *length, *last_length;

  1185. 

  1186.     av_assert2(h == 8);

  1187. 

  1188.     s->dsp.diff_pixels(temp, src1, src2, stride);

  1189. 

  1190.     s->block_last_index[0 /* FIXME */] =

  1191.     last                               =

  1192.         s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);

  1193. 

  1194.     bits = 0;

  1195. 

  1196.     if (s->mb_intra) {

  1197.         start_i     = 1;

  1198.         length      = s->intra_ac_vlc_length;

  1199.         last_length = s->intra_ac_vlc_last_length;

  1200.         bits       += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma

  1201.     } else {

  1202.         start_i     = 0;

  1203.         length      = s->inter_ac_vlc_length;

  1204.         last_length = s->inter_ac_vlc_last_length;

  1205.     }

  1206. 

  1207.     if (last >= start_i) {

  1208.         run = 0;

  1209.         for (i = start_i; i < last; i++) {

  1210.             int j = scantable[i];

  1211.             level = temp[j];

  1212. 

  1213.             if (level) {

  1214.                 level += 64;

  1215.                 if ((level & (~127)) == 0)

  1216.                     bits += length[UNI_AC_ENC_INDEX(run, level)];

  1217.                 else

  1218.                     bits += esc_length;

  1219.                 run = 0;

  1220.             } else

  1221.                 run++;

  1222.         }

  1223.         i = scantable[last];

  1224. 

  1225.         level = temp[i] + 64;

  1226. 

  1227.         av_assert2(level - 64);

  1228. 

  1229.         if ((level & (~127)) == 0)

  1230.             bits += last_length[UNI_AC_ENC_INDEX(run, level)];

  1231.         else

  1232.             bits += esc_length;

  1233.     }

  1234. 

  1235.     return bits;

  1236. }

  1237. 

  1238. #define VSAD_INTRA(size)                                                \

  1239. static int vsad_intra ## size ## _c(MpegEncContext *c,                  \

  1240.                                     uint8_t *s, uint8_t *dummy,         \

  1241.                                     int stride, int h)                  \

  1242. {                                                                       \

  1243.     int score = 0, x, y;                                                \

  1244.                                                                         \

  1245.     for (y = 1; y < h; y++) {                                           \

  1246.         for (x = 0; x < size; x += 4) {                                 \

  1247.             score += FFABS(s[x]     - s[x + stride])     +              \

  1248.                      FFABS(s[x + 1] - s[x + stride + 1]) +              \

  1249.                      FFABS(s[x + 2] - s[x + 2 + stride]) +              \

  1250.                      FFABS(s[x + 3] - s[x + 3 + stride]);               \

  1251.         }                                                               \

  1252.         s += stride;                                                    \

  1253.     }                                                                   \

  1254.                                                                         \

  1255.     return score;                                                       \

  1256. }

  1257. VSAD_INTRA(8)

  1258. VSAD_INTRA(16)

  1259. 

  1260. #define VSAD(size)                                                             \

  1261. static int vsad ## size ## _c(MpegEncContext *c,                               \

  1262.                               uint8_t *s1, uint8_t *s2,                        \

  1263.                               int stride, int h)                               \

  1264. {                                                                              \

  1265.     int score = 0, x, y;                                                       \

  1266.                                                                                \

  1267.     for (y = 1; y < h; y++) {                                                  \

  1268.         for (x = 0; x < size; x++)                                             \

  1269.             score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]);   \

  1270.         s1 += stride;                                                          \

  1271.         s2 += stride;                                                          \

  1272.     }                                                                          \

  1273.                                                                                \

  1274.     return score;                                                              \

  1275. }

  1276. VSAD(8)

  1277. VSAD(16)

  1278. 

  1279. #define SQ(a) ((a) * (a))

  1280. #define VSSE_INTRA(size)                                                \

  1281. static int vsse_intra ## size ## _c(MpegEncContext *c,                  \

  1282.                                     uint8_t *s, uint8_t *dummy,         \

  1283.                                     int stride, int h)                  \

  1284. {                                                                       \

  1285.     int score = 0, x, y;                                                \

  1286.                                                                         \

  1287.     for (y = 1; y < h; y++) {                                           \

  1288.         for (x = 0; x < size; x += 4) {                                 \

  1289.             score += SQ(s[x]     - s[x + stride]) +                     \

  1290.                      SQ(s[x + 1] - s[x + stride + 1]) +                 \

  1291.                      SQ(s[x + 2] - s[x + stride + 2]) +                 \

  1292.                      SQ(s[x + 3] - s[x + stride + 3]);                  \

  1293.         }                                                               \

  1294.         s += stride;                                                    \

  1295.     }                                                                   \

  1296.                                                                         \

  1297.     return score;                                                       \

  1298. }

  1299. VSSE_INTRA(8)

  1300. VSSE_INTRA(16)

  1301. 

  1302. #define VSSE(size)                                                             \

  1303. static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,     \

  1304.                     int stride, int h)                                         \

  1305. {                                                                              \

  1306.     int score = 0, x, y;                                                       \

  1307.                                                                                \

  1308.     for (y = 1; y < h; y++) {                                                  \

  1309.         for (x = 0; x < size; x++)                                             \

  1310.             score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]);      \

  1311.         s1 += stride;                                                          \

  1312.         s2 += stride;                                                          \

  1313.     }                                                                          \

  1314.                                                                                \

  1315.     return score;                                                              \

  1316. }

  1317. VSSE(8)

  1318. VSSE(16)

  1319. 

  1320. #define WRAPPER8_16_SQ(name8, name16)                                   \

  1321. static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src,        \

  1322.                   int stride, int h)                                    \

  1323. {                                                                       \

  1324.     int score = 0;                                                      \

  1325.                                                                         \

  1326.     score += name8(s, dst, src, stride, 8);                             \

  1327.     score += name8(s, dst + 8, src + 8, stride, 8);                     \

  1328.     if (h == 16) {                                                      \

  1329.         dst   += 8 * stride;                                            \

  1330.         src   += 8 * stride;                                            \

  1331.         score += name8(s, dst, src, stride, 8);                         \

  1332.         score += name8(s, dst + 8, src + 8, stride, 8);                 \

  1333.     }                                                                   \

  1334.     return score;                                                       \

  1335. }

  1336. 

  1337. WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)

  1338. WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)

  1339. WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)

  1340. #if CONFIG_GPL

  1341. WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)

  1342. #endif

  1343. WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)

  1344. WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)

  1345. WRAPPER8_16_SQ(rd8x8_c, rd16_c)

  1346. WRAPPER8_16_SQ(bit8x8_c, bit16_c)

  1347. 

  1348. static inline uint32_t clipf_c_one(uint32_t a, uint32_t mini,

  1349.                                    uint32_t maxi, uint32_t maxisign)

  1350. {

  1351.     if (a > mini)

  1352.         return mini;

  1353.     else if ((a ^ (1U << 31)) > maxisign)

  1354.         return maxi;

  1355.     else

  1356.         return a;

  1357. }

  1358. 

  1359. static void vector_clipf_c_opposite_sign(float *dst, const float *src,

  1360.                                          float *min, float *max, int len)

  1361. {

  1362.     int i;

  1363.     uint32_t mini        = *(uint32_t *) min;

  1364.     uint32_t maxi        = *(uint32_t *) max;

  1365.     uint32_t maxisign    = maxi ^ (1U << 31);

  1366.     uint32_t *dsti       = (uint32_t *) dst;

  1367.     const uint32_t *srci = (const uint32_t *) src;

  1368. 

  1369.     for (i = 0; i < len; i += 8) {

  1370.         dsti[i + 0] = clipf_c_one(srci[i + 0], mini, maxi, maxisign);

  1371.         dsti[i + 1] = clipf_c_one(srci[i + 1], mini, maxi, maxisign);

  1372.         dsti[i + 2] = clipf_c_one(srci[i + 2], mini, maxi, maxisign);

  1373.         dsti[i + 3] = clipf_c_one(srci[i + 3], mini, maxi, maxisign);

  1374.         dsti[i + 4] = clipf_c_one(srci[i + 4], mini, maxi, maxisign);

  1375.         dsti[i + 5] = clipf_c_one(srci[i + 5], mini, maxi, maxisign);

  1376.         dsti[i + 6] = clipf_c_one(srci[i + 6], mini, maxi, maxisign);

  1377.         dsti[i + 7] = clipf_c_one(srci[i + 7], mini, maxi, maxisign);

  1378.     }

  1379. }

  1380. 

  1381. static void vector_clipf_c(float *dst, const float *src,

  1382.                            float min, float max, int len)

  1383. {

  1384.     int i;

  1385. 

  1386.     if (min < 0 && max > 0) {

  1387.         vector_clipf_c_opposite_sign(dst, src, &min, &max, len);

  1388.     } else {

  1389.         for (i = 0; i < len; i += 8) {

  1390.             dst[i]     = av_clipf(src[i], min, max);

  1391.             dst[i + 1] = av_clipf(src[i + 1], min, max);

  1392.             dst[i + 2] = av_clipf(src[i + 2], min, max);

  1393.             dst[i + 3] = av_clipf(src[i + 3], min, max);

  1394.             dst[i + 4] = av_clipf(src[i + 4], min, max);

  1395.             dst[i + 5] = av_clipf(src[i + 5], min, max);

  1396.             dst[i + 6] = av_clipf(src[i + 6], min, max);

  1397.             dst[i + 7] = av_clipf(src[i + 7], min, max);

  1398.         }

  1399.     }

  1400. }

  1401. 

  1402. static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2,

  1403.                                      int order)

  1404. {

  1405.     int res = 0;

  1406. 

  1407.     while (order--)

  1408.         res += *v1++ **v2++;

  1409. 

  1410.     return res;

  1411. }

  1412. 

  1413. static void vector_clip_int32_c(int32_t *dst, const int32_t *src, int32_t min,

  1414.                                 int32_t max, unsigned int len)

  1415. {

  1416.     do {

  1417.         *dst++ = av_clip(*src++, min, max);

  1418.         *dst++ = av_clip(*src++, min, max);

  1419.         *dst++ = av_clip(*src++, min, max);

  1420.         *dst++ = av_clip(*src++, min, max);

  1421.         *dst++ = av_clip(*src++, min, max);

  1422.         *dst++ = av_clip(*src++, min, max);

  1423.         *dst++ = av_clip(*src++, min, max);

  1424.         *dst++ = av_clip(*src++, min, max);

  1425.         len   -= 8;

  1426.     } while (len > 0);

  1427. }

  1428. 

  1429. static void jref_idct_put(uint8_t *dest, int line_size, int16_t *block)

  1430. {

  1431.     ff_j_rev_dct(block);

  1432.     put_pixels_clamped_c(block, dest, line_size);

  1433. }

  1434. 

  1435. static void jref_idct_add(uint8_t *dest, int line_size, int16_t *block)

  1436. {

  1437.     ff_j_rev_dct(block);

  1438.     add_pixels_clamped_c(block, dest, line_size);

  1439. }

  1440. 

  1441. static void ff_jref_idct4_put(uint8_t *dest, int line_size, int16_t *block)

  1442. {

  1443.     ff_j_rev_dct4 (block);

  1444.     put_pixels_clamped4_c(block, dest, line_size);

  1445. }

  1446. static void ff_jref_idct4_add(uint8_t *dest, int line_size, int16_t *block)

  1447. {

  1448.     ff_j_rev_dct4 (block);

  1449.     add_pixels_clamped4_c(block, dest, line_size);

  1450. }

  1451. 

  1452. static void ff_jref_idct2_put(uint8_t *dest, int line_size, int16_t *block)

  1453. {

  1454.     ff_j_rev_dct2 (block);

  1455.     put_pixels_clamped2_c(block, dest, line_size);

  1456. }

  1457. static void ff_jref_idct2_add(uint8_t *dest, int line_size, int16_t *block)

  1458. {

  1459.     ff_j_rev_dct2 (block);

  1460.     add_pixels_clamped2_c(block, dest, line_size);

  1461. }

  1462. 

  1463. static void ff_jref_idct1_put(uint8_t *dest, int line_size, int16_t *block)

  1464. {

  1465.     dest[0] = av_clip_uint8((block[0] + 4)>>3);

  1466. }

  1467. static void ff_jref_idct1_add(uint8_t *dest, int line_size, int16_t *block)

  1468. {

  1469.     dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));

  1470. }

  1471. 

  1472. /* draw the edges of width 'w' of an image of size width, height */

  1473. // FIXME: Check that this is OK for MPEG-4 interlaced.

  1474. static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height,

  1475.                            int w, int h, int sides)

  1476. {

  1477.     uint8_t *ptr = buf, *last_line;

  1478.     int i;

  1479. 

  1480.     /* left and right */

  1481.     for (i = 0; i < height; i++) {

  1482.         memset(ptr - w, ptr[0], w);

  1483.         memset(ptr + width, ptr[width - 1], w);

  1484.         ptr += wrap;

  1485.     }

  1486. 

  1487.     /* top and bottom + corners */

  1488.     buf -= w;

  1489.     last_line = buf + (height - 1) * wrap;

  1490.     if (sides & EDGE_TOP)

  1491.         for (i = 0; i < h; i++)

  1492.             // top

  1493.             memcpy(buf - (i + 1) * wrap, buf, width + w + w);

  1494.     if (sides & EDGE_BOTTOM)

  1495.         for (i = 0; i < h; i++)

  1496.             // bottom

  1497.             memcpy(last_line + (i + 1) * wrap, last_line, width + w + w);

  1498. }

  1499. 

  1500. /* init static data */

  1501. av_cold void ff_dsputil_static_init(void)

  1502. {

  1503.     int i;

  1504. 

  1505.     for (i = 0; i < 512; i++)

  1506.         ff_square_tab[i] = (i - 256) * (i - 256);

  1507. }

  1508. 

  1509. int ff_check_alignment(void)

  1510. {

  1511.     static int did_fail = 0;

  1512.     LOCAL_ALIGNED_16(int, aligned, [4]);

  1513. 

  1514.     if ((intptr_t)aligned & 15) {

  1515.         if (!did_fail) {

  1516. #if HAVE_MMX || HAVE_ALTIVEC

  1517.             av_log(NULL, AV_LOG_ERROR,

  1518.                 "Compiler did not align stack variables. Libavcodec has been miscompiled\n"

  1519.                 "and may be very slow or crash. This is not a bug in libavcodec,\n"

  1520.                 "but in the compiler. You may try recompiling using gcc >= 4.2.\n"

  1521.                 "Do not report crashes to FFmpeg developers.\n");

  1522. #endif

  1523.             did_fail=1;

  1524.         }

  1525.         return -1;

  1526.     }

  1527.     return 0;

  1528. }

  1529. 

  1530. av_cold void ff_dsputil_init(DSPContext *c, AVCodecContext *avctx)

  1531. {

  1532.     const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;

  1533. 

  1534.     ff_check_alignment();

  1535. 

  1536. #if CONFIG_ENCODERS

  1537.     if (avctx->bits_per_raw_sample == 10) {

  1538.         c->fdct    = ff_jpeg_fdct_islow_10;

  1539.         c->fdct248 = ff_fdct248_islow_10;

  1540.     } else {

  1541.         if (avctx->dct_algo == FF_DCT_FASTINT) {

  1542.             c->fdct    = ff_fdct_ifast;

  1543.             c->fdct248 = ff_fdct_ifast248;

  1544.         } else if (avctx->dct_algo == FF_DCT_FAAN) {

  1545.             c->fdct    = ff_faandct;

  1546.             c->fdct248 = ff_faandct248;

  1547.         } else {

  1548.             c->fdct    = ff_jpeg_fdct_islow_8; // slow/accurate/default

  1549.             c->fdct248 = ff_fdct248_islow_8;

  1550.         }

  1551.     }

  1552. #endif /* CONFIG_ENCODERS */

  1553. 

  1554.     if (avctx->lowres==1) {

  1555.         c->idct_put              = ff_jref_idct4_put;

  1556.         c->idct_add              = ff_jref_idct4_add;

  1557.         c->idct                  = ff_j_rev_dct4;

  1558.         c->idct_permutation_type = FF_NO_IDCT_PERM;

  1559.     } else if (avctx->lowres==2) {

  1560.         c->idct_put              =  ff_jref_idct2_put;

  1561.         c->idct_add              =  ff_jref_idct2_add;

  1562.         c->idct                  =  ff_j_rev_dct2;

  1563.         c->idct_permutation_type = FF_NO_IDCT_PERM;

  1564.     } else if (avctx->lowres==3) {

  1565.         c->idct_put              =  ff_jref_idct1_put;

  1566.         c->idct_add              =  ff_jref_idct1_add;

  1567.         c->idct                  =  ff_j_rev_dct1;

  1568.         c->idct_permutation_type = FF_NO_IDCT_PERM;

  1569.     } else {

  1570.         if (avctx->bits_per_raw_sample == 10) {

  1571.             c->idct_put              = ff_simple_idct_put_10;

  1572.             c->idct_add              = ff_simple_idct_add_10;

  1573.             c->idct                  = ff_simple_idct_10;

  1574.             c->idct_permutation_type = FF_NO_IDCT_PERM;

  1575.         } else if (avctx->bits_per_raw_sample == 12) {

  1576.             c->idct_put              = ff_simple_idct_put_12;

  1577.             c->idct_add              = ff_simple_idct_add_12;

  1578.             c->idct                  = ff_simple_idct_12;

  1579.             c->idct_permutation_type = FF_NO_IDCT_PERM;

  1580.         } else {

  1581.         if (avctx->idct_algo == FF_IDCT_INT) {

  1582.             c->idct_put              = jref_idct_put;

  1583.             c->idct_add              = jref_idct_add;

  1584.             c->idct                  = ff_j_rev_dct;

  1585.             c->idct_permutation_type = FF_LIBMPEG2_IDCT_PERM;

  1586.         } else if (avctx->idct_algo == FF_IDCT_FAAN) {

  1587.             c->idct_put              = ff_faanidct_put;

  1588.             c->idct_add              = ff_faanidct_add;

  1589.             c->idct                  = ff_faanidct;

  1590.             c->idct_permutation_type = FF_NO_IDCT_PERM;

  1591.         } else { // accurate/default

  1592.             c->idct_put              = ff_simple_idct_put_8;

  1593.             c->idct_add              = ff_simple_idct_add_8;

  1594.             c->idct                  = ff_simple_idct_8;

  1595.             c->idct_permutation_type = FF_NO_IDCT_PERM;

  1596.         }

  1597.         }

  1598.     }

  1599. 

  1600.     c->diff_pixels = diff_pixels_c;

  1601. 

  1602.     c->put_pixels_clamped        = put_pixels_clamped_c;

  1603.     c->put_signed_pixels_clamped = put_signed_pixels_clamped_c;

  1604.     c->add_pixels_clamped        = add_pixels_clamped_c;

  1605. 

  1606.     c->sum_abs_dctelem = sum_abs_dctelem_c;

  1607. 

  1608.     c->gmc1 = gmc1_c;

  1609.     c->gmc  = ff_gmc_c;

  1610. 

  1611.     c->pix_sum   = pix_sum_c;

  1612.     c->pix_norm1 = pix_norm1_c;

  1613. 

  1614.     /* TODO [0] 16  [1] 8 */

  1615.     c->pix_abs[0][0] = pix_abs16_c;

  1616.     c->pix_abs[0][1] = pix_abs16_x2_c;

  1617.     c->pix_abs[0][2] = pix_abs16_y2_c;

  1618.     c->pix_abs[0][3] = pix_abs16_xy2_c;

  1619.     c->pix_abs[1][0] = pix_abs8_c;

  1620.     c->pix_abs[1][1] = pix_abs8_x2_c;

  1621.     c->pix_abs[1][2] = pix_abs8_y2_c;

  1622.     c->pix_abs[1][3] = pix_abs8_xy2_c;

  1623. 

  1624. #define SET_CMP_FUNC(name)                      \

  1625.     c->name[0] = name ## 16_c;                  \

  1626.     c->name[1] = name ## 8x8_c;

  1627. 

  1628.     SET_CMP_FUNC(hadamard8_diff)

  1629.     c->hadamard8_diff[4] = hadamard8_intra16_c;

  1630.     c->hadamard8_diff[5] = hadamard8_intra8x8_c;

  1631.     SET_CMP_FUNC(dct_sad)

  1632.     SET_CMP_FUNC(dct_max)

  1633. #if CONFIG_GPL

  1634.     SET_CMP_FUNC(dct264_sad)

  1635. #endif

  1636.     c->sad[0] = pix_abs16_c;

  1637.     c->sad[1] = pix_abs8_c;

  1638.     c->sse[0] = sse16_c;

  1639.     c->sse[1] = sse8_c;

  1640.     c->sse[2] = sse4_c;

  1641.     SET_CMP_FUNC(quant_psnr)

  1642.     SET_CMP_FUNC(rd)

  1643.     SET_CMP_FUNC(bit)

  1644.     c->vsad[0] = vsad16_c;

  1645.     c->vsad[1] = vsad8_c;

  1646.     c->vsad[4] = vsad_intra16_c;

  1647.     c->vsad[5] = vsad_intra8_c;

  1648.     c->vsse[0] = vsse16_c;

  1649.     c->vsse[1] = vsse8_c;

  1650.     c->vsse[4] = vsse_intra16_c;

  1651.     c->vsse[5] = vsse_intra8_c;

  1652.     c->nsse[0] = nsse16_c;

  1653.     c->nsse[1] = nsse8_c;

  1654. #if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER

  1655.     ff_dsputil_init_dwt(c);

  1656. #endif

  1657. 

  1658.     c->bswap_buf   = bswap_buf;

  1659.     c->bswap16_buf = bswap16_buf;

  1660. 

  1661.     c->try_8x8basis = try_8x8basis_c;

  1662.     c->add_8x8basis = add_8x8basis_c;

  1663. 

  1664.     c->scalarproduct_int16 = scalarproduct_int16_c;

  1665.     c->vector_clip_int32   = vector_clip_int32_c;

  1666.     c->vector_clipf        = vector_clipf_c;

  1667. 

  1668.     c->shrink[0] = av_image_copy_plane;

  1669.     c->shrink[1] = ff_shrink22;

  1670.     c->shrink[2] = ff_shrink44;

  1671.     c->shrink[3] = ff_shrink88;

  1672. 

  1673.     c->draw_edges = draw_edges_8_c;

  1674. 

  1675.     switch (avctx->bits_per_raw_sample) {

  1676.     case 9:

  1677.     case 10:

  1678.     case 12:

  1679.     case 14:

  1680.         c->get_pixels = get_pixels_16_c;

  1681.         break;

  1682.     default:

  1683.         if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) {

  1684.             c->get_pixels = get_pixels_8_c;

  1685.         }

  1686.         break;

  1687.     }

  1688. 

  1689. 

  1690.     if (ARCH_ALPHA)

  1691.         ff_dsputil_init_alpha(c, avctx);

  1692.     if (ARCH_ARM)

  1693.         ff_dsputil_init_arm(c, avctx, high_bit_depth);

  1694.     if (ARCH_PPC)

  1695.         ff_dsputil_init_ppc(c, avctx, high_bit_depth);

  1696.     if (ARCH_X86)

  1697.         ff_dsputil_init_x86(c, avctx, high_bit_depth);

  1698. 

  1699.     ff_init_scantable_permutation(c->idct_permutation,

  1700.                                   c->idct_permutation_type);

  1701. }

  1702. 

  1703. av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)

  1704. {

  1705.     ff_dsputil_init(c, avctx);

  1706. }

  1707. 

  1708. av_cold void avpriv_dsputil_init(DSPContext *c, AVCodecContext *avctx)

  1709. {

  1710.     ff_dsputil_init(c, avctx);

  1711. }