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FFmpeg/libavcodec/dsputil.c

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  1. /*

  2.  * DSP utils

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

  4.  *

  5.  * This library is free software; you can redistribute it and/or

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

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

  8.  * version 2 of the License, or (at your option) any later version.

  9.  *

  10.  * This library is distributed in the hope that it will be useful,

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

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

  13.  * Lesser General Public License for more details.

  14.  *

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

  16.  * License along with this library; if not, write to the Free Software

  17.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  18.  *

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

  20.  */

  21. #include "avcodec.h"

  22. #include "dsputil.h"

  23. #include "simple_idct.h"

  24. 

  25. void (*ff_idct)(DCTELEM *block);

  26. void (*ff_idct_put)(UINT8 *dest, int line_size, DCTELEM *block);

  27. void (*ff_idct_add)(UINT8 *dest, int line_size, DCTELEM *block);

  28. void (*av_fdct)(DCTELEM *block);

  29. void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);

  30. void (*diff_pixels)(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);

  31. void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);

  32. void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);

  33. void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);

  34. void (*clear_blocks)(DCTELEM *blocks);

  35. 

  36. op_pixels_abs_func pix_abs16x16;

  37. op_pixels_abs_func pix_abs16x16_x2;

  38. op_pixels_abs_func pix_abs16x16_y2;

  39. op_pixels_abs_func pix_abs16x16_xy2;

  40. 

  41. op_pixels_abs_func pix_abs8x8;

  42. op_pixels_abs_func pix_abs8x8_x2;

  43. op_pixels_abs_func pix_abs8x8_y2;

  44. op_pixels_abs_func pix_abs8x8_xy2;

  45. 

  46. UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];

  47. UINT32 squareTbl[512];

  48. 

  49. extern INT16 default_intra_matrix[64];

  50. extern INT16 default_non_intra_matrix[64];

  51. extern INT16 ff_mpeg4_default_intra_matrix[64];

  52. extern INT16 ff_mpeg4_default_non_intra_matrix[64];

  53. 

  54. UINT8 zigzag_direct[64] = {

  55.     0, 1, 8, 16, 9, 2, 3, 10,

  56.     17, 24, 32, 25, 18, 11, 4, 5,

  57.     12, 19, 26, 33, 40, 48, 41, 34,

  58.     27, 20, 13, 6, 7, 14, 21, 28,

  59.     35, 42, 49, 56, 57, 50, 43, 36,

  60.     29, 22, 15, 23, 30, 37, 44, 51,

  61.     58, 59, 52, 45, 38, 31, 39, 46,

  62.     53, 60, 61, 54, 47, 55, 62, 63

  63. };

  64. 

  65. /* not permutated inverse zigzag_direct + 1 for MMX quantizer */

  66. UINT16 __align8 inv_zigzag_direct16[64];

  67. 

  68. /* not permutated zigzag_direct for MMX quantizer */

  69. UINT8 zigzag_direct_noperm[64];

  70. 

  71. UINT8 ff_alternate_horizontal_scan[64] = {

  72.     0,  1,  2,  3,  8,  9, 16, 17, 

  73.     10, 11,  4,  5,  6,  7, 15, 14,

  74.     13, 12, 19, 18, 24, 25, 32, 33, 

  75.     26, 27, 20, 21, 22, 23, 28, 29,

  76.     30, 31, 34, 35, 40, 41, 48, 49, 

  77.     42, 43, 36, 37, 38, 39, 44, 45,

  78.     46, 47, 50, 51, 56, 57, 58, 59, 

  79.     52, 53, 54, 55, 60, 61, 62, 63,

  80. };

  81. 

  82. UINT8 ff_alternate_vertical_scan[64] = {

  83.     0,  8, 16, 24,  1,  9,  2, 10, 

  84.     17, 25, 32, 40, 48, 56, 57, 49,

  85.     41, 33, 26, 18,  3, 11,  4, 12, 

  86.     19, 27, 34, 42, 50, 58, 35, 43,

  87.     51, 59, 20, 28,  5, 13,  6, 14, 

  88.     21, 29, 36, 44, 52, 60, 37, 45,

  89.     53, 61, 22, 30,  7, 15, 23, 31, 

  90.     38, 46, 54, 62, 39, 47, 55, 63,

  91. };

  92. 

  93. #ifdef SIMPLE_IDCT

  94. 

  95. /* Input permutation for the simple_idct_mmx */

  96. static UINT8 simple_mmx_permutation[64]={

  97. 	0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D, 

  98. 	0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D, 

  99. 	0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D, 

  100. 	0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F, 

  101. 	0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F, 

  102. 	0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D, 

  103. 	0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F, 

  104. 	0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,

  105. };

  106. #endif

  107. 

  108. /* a*inverse[b]>>32 == a/b for all 0<=a<=65536 && 2<=b<=255 */

  109. UINT32 inverse[256]={

  110.          0, 4294967295U,2147483648U,1431655766, 1073741824,  858993460,  715827883,  613566757, 

  111.  536870912,  477218589,  429496730,  390451573,  357913942,  330382100,  306783379,  286331154, 

  112.  268435456,  252645136,  238609295,  226050911,  214748365,  204522253,  195225787,  186737709, 

  113.  178956971,  171798692,  165191050,  159072863,  153391690,  148102321,  143165577,  138547333, 

  114.  134217728,  130150525,  126322568,  122713352,  119304648,  116080198,  113025456,  110127367, 

  115.  107374183,  104755300,  102261127,   99882961,   97612894,   95443718,   93368855,   91382283, 

  116.   89478486,   87652394,   85899346,   84215046,   82595525,   81037119,   79536432,   78090315, 

  117.   76695845,   75350304,   74051161,   72796056,   71582789,   70409300,   69273667,   68174085, 

  118.   67108864,   66076420,   65075263,   64103990,   63161284,   62245903,   61356676,   60492498, 

  119.   59652324,   58835169,   58040099,   57266231,   56512728,   55778797,   55063684,   54366675, 

  120.   53687092,   53024288,   52377650,   51746594,   51130564,   50529028,   49941481,   49367441, 

  121.   48806447,   48258060,   47721859,   47197443,   46684428,   46182445,   45691142,   45210183, 

  122.   44739243,   44278014,   43826197,   43383509,   42949673,   42524429,   42107523,   41698712, 

  123.   41297763,   40904451,   40518560,   40139882,   39768216,   39403370,   39045158,   38693400, 

  124.   38347923,   38008561,   37675152,   37347542,   37025581,   36709123,   36398028,   36092163, 

  125.   35791395,   35495598,   35204650,   34918434,   34636834,   34359739,   34087043,   33818641, 

  126.   33554432,   33294321,   33038210,   32786010,   32537632,   32292988,   32051995,   31814573, 

  127.   31580642,   31350127,   31122952,   30899046,   30678338,   30460761,   30246249,   30034737, 

  128.   29826162,   29620465,   29417585,   29217465,   29020050,   28825284,   28633116,   28443493, 

  129.   28256364,   28071682,   27889399,   27709467,   27531842,   27356480,   27183338,   27012373, 

  130.   26843546,   26676816,   26512144,   26349493,   26188825,   26030105,   25873297,   25718368, 

  131.   25565282,   25414008,   25264514,   25116768,   24970741,   24826401,   24683721,   24542671, 

  132.   24403224,   24265352,   24129030,   23994231,   23860930,   23729102,   23598722,   23469767, 

  133.   23342214,   23216040,   23091223,   22967740,   22845571,   22724695,   22605092,   22486740, 

  134.   22369622,   22253717,   22139007,   22025474,   21913099,   21801865,   21691755,   21582751, 

  135.   21474837,   21367997,   21262215,   21157475,   21053762,   20951060,   20849356,   20748635, 

  136.   20648882,   20550083,   20452226,   20355296,   20259280,   20164166,   20069941,   19976593, 

  137.   19884108,   19792477,   19701685,   19611723,   19522579,   19434242,   19346700,   19259944, 

  138.   19173962,   19088744,   19004281,   18920561,   18837576,   18755316,   18673771,   18592933, 

  139.   18512791,   18433337,   18354562,   18276457,   18199014,   18122225,   18046082,   17970575, 

  140.   17895698,   17821442,   17747799,   17674763,   17602325,   17530479,   17459217,   17388532, 

  141.   17318417,   17248865,   17179870,   17111424,   17043522,   16976156,   16909321,   16843010,

  142. };

  143. 

  144. /* used to skip zeros at the end */

  145. UINT8 zigzag_end[64];

  146. 

  147. UINT8 permutation[64];

  148. //UINT8 invPermutation[64];

  149. 

  150. static void build_zigzag_end(void)

  151. {

  152.     int lastIndex;

  153.     int lastIndexAfterPerm=0;

  154.     for(lastIndex=0; lastIndex<64; lastIndex++)

  155.     {

  156.         if(zigzag_direct[lastIndex] > lastIndexAfterPerm) 

  157.             lastIndexAfterPerm= zigzag_direct[lastIndex];

  158.         zigzag_end[lastIndex]= lastIndexAfterPerm + 1;

  159.     }

  160. }

  161. 

  162. void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size)

  163. {

  164.     DCTELEM *p;

  165.     const UINT8 *pix;

  166.     int i;

  167. 

  168.     /* read the pixels */

  169.     p = block;

  170.     pix = pixels;

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

  172.         p[0] = pix[0];

  173.         p[1] = pix[1];

  174.         p[2] = pix[2];

  175.         p[3] = pix[3];

  176.         p[4] = pix[4];

  177.         p[5] = pix[5];

  178.         p[6] = pix[6];

  179.         p[7] = pix[7];

  180.         pix += line_size;

  181.         p += 8;

  182.     }

  183. }

  184. 

  185. void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride){

  186.     DCTELEM *p;

  187.     int i;

  188. 

  189.     /* read the pixels */

  190.     p = block;

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

  192.         p[0] = s1[0] - s2[0];

  193.         p[1] = s1[1] - s2[1];

  194.         p[2] = s1[2] - s2[2];

  195.         p[3] = s1[3] - s2[3];

  196.         p[4] = s1[4] - s2[4];

  197.         p[5] = s1[5] - s2[5];

  198.         p[6] = s1[6] - s2[6];

  199.         p[7] = s1[7] - s2[7];

  200.         s1 += stride;

  201.         s2 += stride;

  202.         p += 8;

  203.     }

  204. }

  205. 

  206. 

  207. void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size)

  208. {

  209.     const DCTELEM *p;

  210.     UINT8 *pix;

  211.     int i;

  212.     UINT8 *cm = cropTbl + MAX_NEG_CROP;

  213.     

  214.     /* read the pixels */

  215.     p = block;

  216.     pix = pixels;

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

  218.         pix[0] = cm[p[0]];

  219.         pix[1] = cm[p[1]];

  220.         pix[2] = cm[p[2]];

  221.         pix[3] = cm[p[3]];

  222.         pix[4] = cm[p[4]];

  223.         pix[5] = cm[p[5]];

  224.         pix[6] = cm[p[6]];

  225.         pix[7] = cm[p[7]];

  226.         pix += line_size;

  227.         p += 8;

  228.     }

  229. }

  230. 

  231. void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size)

  232. {

  233.     const DCTELEM *p;

  234.     UINT8 *pix;

  235.     int i;

  236.     UINT8 *cm = cropTbl + MAX_NEG_CROP;

  237.     

  238.     /* read the pixels */

  239.     p = block;

  240.     pix = pixels;

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

  242.         pix[0] = cm[pix[0] + p[0]];

  243.         pix[1] = cm[pix[1] + p[1]];

  244.         pix[2] = cm[pix[2] + p[2]];

  245.         pix[3] = cm[pix[3] + p[3]];

  246.         pix[4] = cm[pix[4] + p[4]];

  247.         pix[5] = cm[pix[5] + p[5]];

  248.         pix[6] = cm[pix[6] + p[6]];

  249.         pix[7] = cm[pix[7] + p[7]];

  250.         pix += line_size;

  251.         p += 8;

  252.     }

  253. }

  254. 

  255. #if 0

  256. 

  257. #define PIXOP2(OPNAME, OP) \

  258. void OPNAME ## _pixels(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  259. {\

  260.     int i;\

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

  262.         OP(*((uint64_t*)block), LD64(pixels));\

  263.         pixels+=line_size;\

  264.         block +=line_size;\

  265.     }\

  266. }\

  267. \

  268. void OPNAME ## _no_rnd_pixels_x2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  269. {\

  270.     int i;\

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

  272.         const uint64_t a= LD64(pixels  );\

  273.         const uint64_t b= LD64(pixels+1);\

  274.         OP(*((uint64_t*)block), (a&b) + (((a^b)&0xFEFEFEFEFEFEFEFEULL)>>1));\

  275.         pixels+=line_size;\

  276.         block +=line_size;\

  277.     }\

  278. }\

  279. \

  280. void OPNAME ## _pixels_x2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  281. {\

  282.     int i;\

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

  284.         const uint64_t a= LD64(pixels  );\

  285.         const uint64_t b= LD64(pixels+1);\

  286.         OP(*((uint64_t*)block), (a|b) - (((a^b)&0xFEFEFEFEFEFEFEFEULL)>>1));\

  287.         pixels+=line_size;\

  288.         block +=line_size;\

  289.     }\

  290. }\

  291. \

  292. void OPNAME ## _no_rnd_pixels_y2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  293. {\

  294.     int i;\

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

  296.         const uint64_t a= LD64(pixels          );\

  297.         const uint64_t b= LD64(pixels+line_size);\

  298.         OP(*((uint64_t*)block), (a&b) + (((a^b)&0xFEFEFEFEFEFEFEFEULL)>>1));\

  299.         pixels+=line_size;\

  300.         block +=line_size;\

  301.     }\

  302. }\

  303. \

  304. void OPNAME ## _pixels_y2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  305. {\

  306.     int i;\

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

  308.         const uint64_t a= LD64(pixels          );\

  309.         const uint64_t b= LD64(pixels+line_size);\

  310.         OP(*((uint64_t*)block), (a|b) - (((a^b)&0xFEFEFEFEFEFEFEFEULL)>>1));\

  311.         pixels+=line_size;\

  312.         block +=line_size;\

  313.     }\

  314. }\

  315. \

  316. void OPNAME ## _pixels_xy2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  317. {\

  318.         int i;\

  319.         const uint64_t a= LD64(pixels  );\

  320.         const uint64_t b= LD64(pixels+1);\

  321.         uint64_t l0=  (a&0x0303030303030303ULL)\

  322.                     + (b&0x0303030303030303ULL)\

  323.                     + 0x0202020202020202ULL;\

  324.         uint64_t h0= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  325.                    + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  326.         uint64_t l1,h1;\

  327. \

  328.         pixels+=line_size;\

  329.         for(i=0; i<h; i+=2){\

  330.             uint64_t a= LD64(pixels  );\

  331.             uint64_t b= LD64(pixels+1);\

  332.             l1=  (a&0x0303030303030303ULL)\

  333.                + (b&0x0303030303030303ULL);\

  334.             h1= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  335.               + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  336.             OP(*((uint64_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0F0F0F0F0FULL));\

  337.             pixels+=line_size;\

  338.             block +=line_size;\

  339.             a= LD64(pixels  );\

  340.             b= LD64(pixels+1);\

  341.             l0=  (a&0x0303030303030303ULL)\

  342.                + (b&0x0303030303030303ULL)\

  343.                + 0x0202020202020202ULL;\

  344.             h0= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  345.               + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  346.             OP(*((uint64_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0F0F0F0F0FULL));\

  347.             pixels+=line_size;\

  348.             block +=line_size;\

  349.         }\

  350. }\

  351. \

  352. void OPNAME ## _no_rnd_pixels_xy2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  353. {\

  354.         int i;\

  355.         const uint64_t a= LD64(pixels  );\

  356.         const uint64_t b= LD64(pixels+1);\

  357.         uint64_t l0=  (a&0x0303030303030303ULL)\

  358.                     + (b&0x0303030303030303ULL)\

  359.                     + 0x0101010101010101ULL;\

  360.         uint64_t h0= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  361.                    + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  362.         uint64_t l1,h1;\

  363. \

  364.         pixels+=line_size;\

  365.         for(i=0; i<h; i+=2){\

  366.             uint64_t a= LD64(pixels  );\

  367.             uint64_t b= LD64(pixels+1);\

  368.             l1=  (a&0x0303030303030303ULL)\

  369.                + (b&0x0303030303030303ULL);\

  370.             h1= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  371.               + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  372.             OP(*((uint64_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0F0F0F0F0FULL));\

  373.             pixels+=line_size;\

  374.             block +=line_size;\

  375.             a= LD64(pixels  );\

  376.             b= LD64(pixels+1);\

  377.             l0=  (a&0x0303030303030303ULL)\

  378.                + (b&0x0303030303030303ULL)\

  379.                + 0x0101010101010101ULL;\

  380.             h0= ((a&0xFCFCFCFCFCFCFCFCULL)>>2)\

  381.               + ((b&0xFCFCFCFCFCFCFCFCULL)>>2);\

  382.             OP(*((uint64_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0F0F0F0F0FULL));\

  383.             pixels+=line_size;\

  384.             block +=line_size;\

  385.         }\

  386. }\

  387. \

  388. void (*OPNAME ## _pixels_tab[4])(uint8_t *block, const uint8_t *pixels, int line_size, int h) = {\

  389.     OPNAME ## _pixels,\

  390.     OPNAME ## _pixels_x2,\

  391.     OPNAME ## _pixels_y2,\

  392.     OPNAME ## _pixels_xy2,\

  393. };\

  394. \

  395. void (*OPNAME ## _no_rnd_pixels_tab[4])(uint8_t *block, const uint8_t *pixels, int line_size, int h) = {\

  396.     OPNAME ## _pixels,\

  397.     OPNAME ## _no_rnd_pixels_x2,\

  398.     OPNAME ## _no_rnd_pixels_y2,\

  399.     OPNAME ## _no_rnd_pixels_xy2,\

  400. };

  401. 

  402. #define op_avg(a, b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEFEFEFEFEULL)>>1) )

  403. #else // 64 bit variant

  404. 

  405. #define PIXOP2(OPNAME, OP) \

  406. void OPNAME ## _pixels(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  407. {\

  408.     int i;\

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

  410.         OP(*((uint32_t*)(block  )), LD32(pixels  ));\

  411.         OP(*((uint32_t*)(block+4)), LD32(pixels+4));\

  412.         pixels+=line_size;\

  413.         block +=line_size;\

  414.     }\

  415. }\

  416. \

  417. void OPNAME ## _no_rnd_pixels_x2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  418. {\

  419.     int i;\

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

  421.         int j;\

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

  423.             const uint32_t a= LD32(pixels  );\

  424.             const uint32_t b= LD32(pixels+1);\

  425.             OP(*((uint32_t*)block), (a&b) + (((a^b)&0xFEFEFEFEUL)>>1));\

  426.             pixels+=4;\

  427.             block +=4;\

  428.         }\

  429.         pixels+=line_size-8;\

  430.         block +=line_size-8;\

  431.     }\

  432. }\

  433. \

  434. void OPNAME ## _pixels_x2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  435. {\

  436.     int i;\

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

  438.         int j;\

  439.         for(j=0; j<2; j++){\

  440.             const uint32_t a= LD32(pixels  );\

  441.             const uint32_t b= LD32(pixels+1);\

  442.             OP(*((uint32_t*)block), (a|b) - (((a^b)&0xFEFEFEFEUL)>>1));\

  443.             pixels+=4;\

  444.             block +=4;\

  445.         }\

  446.         pixels+=line_size-8;\

  447.         block +=line_size-8;\

  448.     }\

  449. }\

  450. \

  451. void OPNAME ## _no_rnd_pixels_y2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  452. {\

  453.     int i;\

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

  455.         int j;\

  456.         for(j=0; j<2; j++){\

  457.             const uint32_t a= LD32(pixels          );\

  458.             const uint32_t b= LD32(pixels+line_size);\

  459.             OP(*((uint32_t*)block), (a&b) + (((a^b)&0xFEFEFEFEUL)>>1));\

  460.             pixels+=4;\

  461.             block +=4;\

  462.         }\

  463.         pixels+=line_size-8;\

  464.         block +=line_size-8;\

  465.     }\

  466. }\

  467. \

  468. void OPNAME ## _pixels_y2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  469. {\

  470.     int i;\

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

  472.         int j;\

  473.         for(j=0; j<2; j++){\

  474.             const uint32_t a= LD32(pixels          );\

  475.             const uint32_t b= LD32(pixels+line_size);\

  476.             OP(*((uint32_t*)block), (a|b) - (((a^b)&0xFEFEFEFEUL)>>1));\

  477.             pixels+=4;\

  478.             block +=4;\

  479.         }\

  480.         pixels+=line_size-8;\

  481.         block +=line_size-8;\

  482.     }\

  483. }\

  484. \

  485. void OPNAME ## _pixels_xy2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  486. {\

  487.     int j;\

  488.     for(j=0; j<2; j++){\

  489.         int i;\

  490.         const uint32_t a= LD32(pixels  );\

  491.         const uint32_t b= LD32(pixels+1);\

  492.         uint32_t l0=  (a&0x03030303UL)\

  493.                     + (b&0x03030303UL)\

  494.                     + 0x02020202UL;\

  495.         uint32_t h0= ((a&0xFCFCFCFCUL)>>2)\

  496.                    + ((b&0xFCFCFCFCUL)>>2);\

  497.         uint32_t l1,h1;\

  498. \

  499.         pixels+=line_size;\

  500.         for(i=0; i<h; i+=2){\

  501.             uint32_t a= LD32(pixels  );\

  502.             uint32_t b= LD32(pixels+1);\

  503.             l1=  (a&0x03030303UL)\

  504.                + (b&0x03030303UL);\

  505.             h1= ((a&0xFCFCFCFCUL)>>2)\

  506.               + ((b&0xFCFCFCFCUL)>>2);\

  507.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\

  508.             pixels+=line_size;\

  509.             block +=line_size;\

  510.             a= LD32(pixels  );\

  511.             b= LD32(pixels+1);\

  512.             l0=  (a&0x03030303UL)\

  513.                + (b&0x03030303UL)\

  514.                + 0x02020202UL;\

  515.             h0= ((a&0xFCFCFCFCUL)>>2)\

  516.               + ((b&0xFCFCFCFCUL)>>2);\

  517.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\

  518.             pixels+=line_size;\

  519.             block +=line_size;\

  520.         }\

  521.         pixels+=4-line_size*(h+1);\

  522.         block +=4-line_size*h;\

  523.     }\

  524. }\

  525. \

  526. void OPNAME ## _no_rnd_pixels_xy2(uint8_t *block, const uint8_t *pixels, int line_size, int h)\

  527. {\

  528.     int j;\

  529.     for(j=0; j<2; j++){\

  530.         int i;\

  531.         const uint32_t a= LD32(pixels  );\

  532.         const uint32_t b= LD32(pixels+1);\

  533.         uint32_t l0=  (a&0x03030303UL)\

  534.                     + (b&0x03030303UL)\

  535.                     + 0x01010101UL;\

  536.         uint32_t h0= ((a&0xFCFCFCFCUL)>>2)\

  537.                    + ((b&0xFCFCFCFCUL)>>2);\

  538.         uint32_t l1,h1;\

  539. \

  540.         pixels+=line_size;\

  541.         for(i=0; i<h; i+=2){\

  542.             uint32_t a= LD32(pixels  );\

  543.             uint32_t b= LD32(pixels+1);\

  544.             l1=  (a&0x03030303UL)\

  545.                + (b&0x03030303UL);\

  546.             h1= ((a&0xFCFCFCFCUL)>>2)\

  547.               + ((b&0xFCFCFCFCUL)>>2);\

  548.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\

  549.             pixels+=line_size;\

  550.             block +=line_size;\

  551.             a= LD32(pixels  );\

  552.             b= LD32(pixels+1);\

  553.             l0=  (a&0x03030303UL)\

  554.                + (b&0x03030303UL)\

  555.                + 0x01010101UL;\

  556.             h0= ((a&0xFCFCFCFCUL)>>2)\

  557.               + ((b&0xFCFCFCFCUL)>>2);\

  558.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\

  559.             pixels+=line_size;\

  560.             block +=line_size;\

  561.         }\

  562.         pixels+=4-line_size*(h+1);\

  563.         block +=4-line_size*h;\

  564.     }\

  565. }\

  566. \

  567. void (*OPNAME ## _pixels_tab[4])(uint8_t *block, const uint8_t *pixels, int line_size, int h) = {\

  568.     OPNAME ## _pixels,\

  569.     OPNAME ## _pixels_x2,\

  570.     OPNAME ## _pixels_y2,\

  571.     OPNAME ## _pixels_xy2,\

  572. };\

  573. \

  574. void (*OPNAME ## _no_rnd_pixels_tab[4])(uint8_t *block, const uint8_t *pixels, int line_size, int h) = {\

  575.     OPNAME ## _pixels,\

  576.     OPNAME ## _no_rnd_pixels_x2,\

  577.     OPNAME ## _no_rnd_pixels_y2,\

  578.     OPNAME ## _no_rnd_pixels_xy2,\

  579. };

  580. #define op_avg(a, b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) )

  581. #endif

  582. 

  583. #define op_put(a, b) a = b

  584. 

  585. PIXOP2(avg, op_avg)

  586. PIXOP2(put, op_put)

  587. #undef op_avg

  588. #undef op_put

  589. 

  590. #if 0

  591. /* FIXME this stuff could be removed as its ot really used anymore */

  592. #define PIXOP(BTYPE, OPNAME, OP, INCR)                                                   \

  593.                                                                                          \

  594. static void OPNAME ## _pixels(BTYPE *block, const UINT8 *pixels, int line_size, int h)    \

  595. {                                                                                        \

  596.     BTYPE *p;                                                                            \

  597.     const UINT8 *pix;                                                                    \

  598.                                                                                          \

  599.     p = block;                                                                           \

  600.     pix = pixels;                                                                        \

  601.     do {                                                                                 \

  602.         OP(p[0], pix[0]);                                                                  \

  603.         OP(p[1], pix[1]);                                                                  \

  604.         OP(p[2], pix[2]);                                                                  \

  605.         OP(p[3], pix[3]);                                                                  \

  606.         OP(p[4], pix[4]);                                                                  \

  607.         OP(p[5], pix[5]);                                                                  \

  608.         OP(p[6], pix[6]);                                                                  \

  609.         OP(p[7], pix[7]);                                                                  \

  610.         pix += line_size;                                                                \

  611.         p += INCR;                                                                       \

  612.     } while (--h);;                                                                       \

  613. }                                                                                        \

  614.                                                                                          \

  615. static void OPNAME ## _pixels_x2(BTYPE *block, const UINT8 *pixels, int line_size, int h)     \

  616. {                                                                                        \

  617.     BTYPE *p;                                                                          \

  618.     const UINT8 *pix;                                                                    \

  619.                                                                                          \

  620.     p = block;                                                                           \

  621.     pix = pixels;                                                                        \

  622.     do {                                                                   \

  623.         OP(p[0], avg2(pix[0], pix[1]));                                                    \

  624.         OP(p[1], avg2(pix[1], pix[2]));                                                    \

  625.         OP(p[2], avg2(pix[2], pix[3]));                                                    \

  626.         OP(p[3], avg2(pix[3], pix[4]));                                                    \

  627.         OP(p[4], avg2(pix[4], pix[5]));                                                    \

  628.         OP(p[5], avg2(pix[5], pix[6]));                                                    \

  629.         OP(p[6], avg2(pix[6], pix[7]));                                                    \

  630.         OP(p[7], avg2(pix[7], pix[8]));                                                    \

  631.         pix += line_size;                                                                \

  632.         p += INCR;                                                                       \

  633.     } while (--h);                                                                        \

  634. }                                                                                        \

  635.                                                                                          \

  636. static void OPNAME ## _pixels_y2(BTYPE *block, const UINT8 *pixels, int line_size, int h)     \

  637. {                                                                                        \

  638.     BTYPE *p;                                                                          \

  639.     const UINT8 *pix;                                                                    \

  640.     const UINT8 *pix1;                                                                   \

  641.                                                                                          \

  642.     p = block;                                                                           \

  643.     pix = pixels;                                                                        \

  644.     pix1 = pixels + line_size;                                                           \

  645.     do {                                                                                 \

  646.         OP(p[0], avg2(pix[0], pix1[0]));                                                   \

  647.         OP(p[1], avg2(pix[1], pix1[1]));                                                   \

  648.         OP(p[2], avg2(pix[2], pix1[2]));                                                   \

  649.         OP(p[3], avg2(pix[3], pix1[3]));                                                   \

  650.         OP(p[4], avg2(pix[4], pix1[4]));                                                   \

  651.         OP(p[5], avg2(pix[5], pix1[5]));                                                   \

  652.         OP(p[6], avg2(pix[6], pix1[6]));                                                   \

  653.         OP(p[7], avg2(pix[7], pix1[7]));                                                   \

  654.         pix += line_size;                                                                \

  655.         pix1 += line_size;                                                               \

  656.         p += INCR;                                                                       \

  657.     } while(--h);                                                                         \

  658. }                                                                                        \

  659.                                                                                          \

  660. static void OPNAME ## _pixels_xy2(BTYPE *block, const UINT8 *pixels, int line_size, int h)    \

  661. {                                                                                        \

  662.     BTYPE *p;                                                                          \

  663.     const UINT8 *pix;                                                                    \

  664.     const UINT8 *pix1;                                                                   \

  665.                                                                                          \

  666.     p = block;                                                                           \

  667.     pix = pixels;                                                                        \

  668.     pix1 = pixels + line_size;                                                           \

  669.     do {                                                                   \

  670.         OP(p[0], avg4(pix[0], pix[1], pix1[0], pix1[1]));                                  \

  671.         OP(p[1], avg4(pix[1], pix[2], pix1[1], pix1[2]));                                  \

  672.         OP(p[2], avg4(pix[2], pix[3], pix1[2], pix1[3]));                                  \

  673.         OP(p[3], avg4(pix[3], pix[4], pix1[3], pix1[4]));                                  \

  674.         OP(p[4], avg4(pix[4], pix[5], pix1[4], pix1[5]));                                  \

  675.         OP(p[5], avg4(pix[5], pix[6], pix1[5], pix1[6]));                                  \

  676.         OP(p[6], avg4(pix[6], pix[7], pix1[6], pix1[7]));                                  \

  677.         OP(p[7], avg4(pix[7], pix[8], pix1[7], pix1[8]));                                  \

  678.         pix += line_size;                                                                \

  679.         pix1 += line_size;                                                               \

  680.         p += INCR;                                                                       \

  681.     } while(--h);                                                                         \

  682. }                                                                                        \

  683.                                                                                          \

  684. void (*OPNAME ## _pixels_tab[4])(BTYPE *block, const UINT8 *pixels, int line_size, int h) = { \

  685.     OPNAME ## _pixels,                                                                   \

  686.     OPNAME ## _pixels_x2,                                                                \

  687.     OPNAME ## _pixels_y2,                                                                \

  688.     OPNAME ## _pixels_xy2,                                                               \

  689. };

  690. 

  691. /* rounding primitives */

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

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

  694. 

  695. #define op_avg(a, b) a = avg2(a, b)

  696. #define op_sub(a, b) a -= b

  697. 

  698. PIXOP(DCTELEM, sub, op_sub, 8)

  699. 

  700. /* not rounding primitives */

  701. #undef avg2

  702. #undef avg4

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

  704. #define avg4(a,b,c,d) ((a+b+c+d+1)>>2)

  705. 

  706. /* motion estimation */

  707. 

  708. #undef avg2

  709. #undef avg4

  710. #endif

  711. 

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

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

  714. 

  715. static void gmc1_c(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder)

  716. {

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

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

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

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

  721.     int i;

  722.     rounder= 128 - rounder;

  723. 

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

  725.     {

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

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

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

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

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

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

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

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

  734.         dst+= srcStride;

  735.         src+= srcStride;

  736.     }

  737. }

  738. 

  739. static void qpel_h_lowpass(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int h, int r)

  740. {

  741.     UINT8 *cm = cropTbl + MAX_NEG_CROP;

  742.     int i;

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

  744.     {

  745.         dst[0]= cm[(((src[0]+src[1])*20 - (src[0]+src[2])*6 + (src[1]+src[3])*3 - (src[2]+src[4]) + r)>>5)];

  746.         dst[1]= cm[(((src[1]+src[2])*20 - (src[0]+src[3])*6 + (src[0]+src[4])*3 - (src[1]+src[5]) + r)>>5)];

  747.         dst[2]= cm[(((src[2]+src[3])*20 - (src[1]+src[4])*6 + (src[0]+src[5])*3 - (src[0]+src[6]) + r)>>5)];

  748.         dst[3]= cm[(((src[3]+src[4])*20 - (src[2]+src[5])*6 + (src[1]+src[6])*3 - (src[0]+src[7]) + r)>>5)];

  749.         dst[4]= cm[(((src[4]+src[5])*20 - (src[3]+src[6])*6 + (src[2]+src[7])*3 - (src[1]+src[8]) + r)>>5)];

  750.         dst[5]= cm[(((src[5]+src[6])*20 - (src[4]+src[7])*6 + (src[3]+src[8])*3 - (src[2]+src[8]) + r)>>5)];

  751.         dst[6]= cm[(((src[6]+src[7])*20 - (src[5]+src[8])*6 + (src[4]+src[8])*3 - (src[3]+src[7]) + r)>>5)];

  752.         dst[7]= cm[(((src[7]+src[8])*20 - (src[6]+src[8])*6 + (src[5]+src[7])*3 - (src[4]+src[6]) + r)>>5)];

  753.         dst+=dstStride;

  754.         src+=srcStride;

  755.     }

  756. }

  757. 

  758. static void qpel_v_lowpass(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int w, int r)

  759. {

  760.     UINT8 *cm = cropTbl + MAX_NEG_CROP;

  761.     int i;

  762.     for(i=0; i<w; i++)

  763.     {

  764.         const int src0= src[0*srcStride];

  765.         const int src1= src[1*srcStride];

  766.         const int src2= src[2*srcStride];

  767.         const int src3= src[3*srcStride];

  768.         const int src4= src[4*srcStride];

  769.         const int src5= src[5*srcStride];

  770.         const int src6= src[6*srcStride];

  771.         const int src7= src[7*srcStride];

  772.         const int src8= src[8*srcStride];

  773.         dst[0*dstStride]= cm[(((src0+src1)*20 - (src0+src2)*6 + (src1+src3)*3 - (src2+src4) + r)>>5)];

  774.         dst[1*dstStride]= cm[(((src1+src2)*20 - (src0+src3)*6 + (src0+src4)*3 - (src1+src5) + r)>>5)];

  775.         dst[2*dstStride]= cm[(((src2+src3)*20 - (src1+src4)*6 + (src0+src5)*3 - (src0+src6) + r)>>5)];

  776.         dst[3*dstStride]= cm[(((src3+src4)*20 - (src2+src5)*6 + (src1+src6)*3 - (src0+src7) + r)>>5)];

  777.         dst[4*dstStride]= cm[(((src4+src5)*20 - (src3+src6)*6 + (src2+src7)*3 - (src1+src8) + r)>>5)];

  778.         dst[5*dstStride]= cm[(((src5+src6)*20 - (src4+src7)*6 + (src3+src8)*3 - (src2+src8) + r)>>5)];

  779.         dst[6*dstStride]= cm[(((src6+src7)*20 - (src5+src8)*6 + (src4+src8)*3 - (src3+src7) + r)>>5)];

  780.         dst[7*dstStride]= cm[(((src7+src8)*20 - (src6+src8)*6 + (src5+src7)*3 - (src4+src6) + r)>>5)];

  781.         dst++;

  782.         src++;

  783.     }

  784. }

  785. 

  786. static inline void put_block(UINT8 *dst, UINT8 *src, int dstStride, int srcStride)

  787. {

  788.     int i;

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

  790.     {

  791.         dst[0]= src[0];

  792.         dst[1]= src[1];

  793.         dst[2]= src[2];

  794.         dst[3]= src[3];

  795.         dst[4]= src[4];

  796.         dst[5]= src[5];

  797.         dst[6]= src[6];

  798.         dst[7]= src[7];

  799.         dst+=dstStride;

  800.         src+=srcStride;

  801.     }

  802. }

  803. 

  804. static inline void avg2_block(UINT8 *dst, UINT8 *src1, UINT8 *src2, int dstStride, int srcStride, int r)

  805. {

  806.     int i;

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

  808.     {

  809.         dst[0]= (src1[0] + src2[0] + r)>>1;

  810.         dst[1]= (src1[1] + src2[1] + r)>>1;

  811.         dst[2]= (src1[2] + src2[2] + r)>>1;

  812.         dst[3]= (src1[3] + src2[3] + r)>>1;

  813.         dst[4]= (src1[4] + src2[4] + r)>>1;

  814.         dst[5]= (src1[5] + src2[5] + r)>>1;

  815.         dst[6]= (src1[6] + src2[6] + r)>>1;

  816.         dst[7]= (src1[7] + src2[7] + r)>>1;

  817.         dst+=dstStride;

  818.         src1+=srcStride;

  819.         src2+=8;

  820.     }

  821. }

  822. 

  823. static inline void avg4_block(UINT8 *dst, UINT8 *src1, UINT8 *src2, UINT8 *src3, UINT8 *src4, int dstStride, int srcStride, int r)

  824. {

  825.     int i;

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

  827.     {

  828.         dst[0]= (src1[0] + src2[0] + src3[0] + src4[0] + r)>>2;

  829.         dst[1]= (src1[1] + src2[1] + src3[1] + src4[1] + r)>>2;

  830.         dst[2]= (src1[2] + src2[2] + src3[2] + src4[2] + r)>>2;

  831.         dst[3]= (src1[3] + src2[3] + src3[3] + src4[3] + r)>>2;

  832.         dst[4]= (src1[4] + src2[4] + src3[4] + src4[4] + r)>>2;

  833.         dst[5]= (src1[5] + src2[5] + src3[5] + src4[5] + r)>>2;

  834.         dst[6]= (src1[6] + src2[6] + src3[6] + src4[6] + r)>>2;

  835.         dst[7]= (src1[7] + src2[7] + src3[7] + src4[7] + r)>>2;

  836.         dst+=dstStride;

  837.         src1+=srcStride;

  838.         src2+=8;

  839.         src3+=8;

  840.         src4+=8;

  841.     }

  842. }

  843. 

  844. #define QPEL_MC(r, name) \

  845. static void qpel_mc00_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  846. {\

  847.     put_block(dst, src, dstStride, srcStride);\

  848. }\

  849. \

  850. static void qpel_mc10_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  851. {\

  852.     UINT8 half[64];\

  853.     qpel_h_lowpass(half, src, 8, srcStride, 8, 16-r);\

  854.     avg2_block(dst, src, half, dstStride, srcStride, 1-r);\

  855. }\

  856. \

  857. static void qpel_mc20_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  858. {\

  859.     qpel_h_lowpass(dst, src, dstStride, srcStride, 8, 16-r);\

  860. }\

  861. \

  862. static void qpel_mc30_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  863. {\

  864.     UINT8 half[64];\

  865.     qpel_h_lowpass(half, src, 8, srcStride, 8, 16-r);\

  866.     avg2_block(dst, src+1, half, dstStride, srcStride, 1-r);\

  867. }\

  868. \

  869. static void qpel_mc01_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  870. {\

  871.     UINT8 half[64];\

  872.     qpel_v_lowpass(half, src, 8, srcStride, 8, 16-r);\

  873.     avg2_block(dst, src, half, dstStride, srcStride, 1-r);\

  874. }\

  875. \

  876. static void qpel_mc02_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  877. {\

  878.     qpel_v_lowpass(dst, src, dstStride, srcStride, 8, 16-r);\

  879. }\

  880. \

  881. static void qpel_mc03_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  882. {\

  883.     UINT8 half[64];\

  884.     qpel_v_lowpass(half, src, 8, srcStride, 8, 16-r);\

  885.     avg2_block(dst, src+srcStride, half, dstStride, srcStride, 1-r);\

  886. }\

  887. static void qpel_mc11_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  888. {\

  889.     UINT8 halfH[72];\

  890.     UINT8 halfV[64];\

  891.     UINT8 halfHV[64];\

  892.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  893.     qpel_v_lowpass(halfV, src, 8, srcStride, 8, 16-r);\

  894.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  895.     avg4_block(dst, src, halfH, halfV, halfHV, dstStride, srcStride, 2-r);\

  896. }\

  897. static void qpel_mc31_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  898. {\

  899.     UINT8 halfH[72];\

  900.     UINT8 halfV[64];\

  901.     UINT8 halfHV[64];\

  902.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  903.     qpel_v_lowpass(halfV, src+1, 8, srcStride, 8, 16-r);\

  904.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  905.     avg4_block(dst, src+1, halfH, halfV, halfHV, dstStride, srcStride, 2-r);\

  906. }\

  907. static void qpel_mc13_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  908. {\

  909.     UINT8 halfH[72];\

  910.     UINT8 halfV[64];\

  911.     UINT8 halfHV[64];\

  912.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  913.     qpel_v_lowpass(halfV, src, 8, srcStride, 8, 16-r);\

  914.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  915.     avg4_block(dst, src+srcStride, halfH+8, halfV, halfHV, dstStride, srcStride, 2-r);\

  916. }\

  917. static void qpel_mc33_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  918. {\

  919.     UINT8 halfH[72];\

  920.     UINT8 halfV[64];\

  921.     UINT8 halfHV[64];\

  922.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  923.     qpel_v_lowpass(halfV, src+1, 8, srcStride, 8, 16-r);\

  924.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  925.     avg4_block(dst, src+srcStride+1, halfH+8, halfV, halfHV, dstStride, srcStride, 2-r);\

  926. }\

  927. static void qpel_mc21_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  928. {\

  929.     UINT8 halfH[72];\

  930.     UINT8 halfHV[64];\

  931.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  932.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  933.     avg2_block(dst, halfH, halfHV, dstStride, 8, 1-r);\

  934. }\

  935. static void qpel_mc23_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  936. {\

  937.     UINT8 halfH[72];\

  938.     UINT8 halfHV[64];\

  939.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  940.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  941.     avg2_block(dst, halfH+8, halfHV, dstStride, 8, 1-r);\

  942. }\

  943. static void qpel_mc12_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  944. {\

  945.     UINT8 halfH[72];\

  946.     UINT8 halfV[64];\

  947.     UINT8 halfHV[64];\

  948.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  949.     qpel_v_lowpass(halfV, src, 8, srcStride, 8, 16-r);\

  950.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  951.     avg2_block(dst, halfV, halfHV, dstStride, 8, 1-r);\

  952. }\

  953. static void qpel_mc32_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  954. {\

  955.     UINT8 halfH[72];\

  956.     UINT8 halfV[64];\

  957.     UINT8 halfHV[64];\

  958.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  959.     qpel_v_lowpass(halfV, src+1, 8, srcStride, 8, 16-r);\

  960.     qpel_v_lowpass(halfHV, halfH, 8, 8, 8, 16-r);\

  961.     avg2_block(dst, halfV, halfHV, dstStride, 8, 1-r);\

  962. }\

  963. static void qpel_mc22_c ## name (UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my)\

  964. {\

  965.     UINT8 halfH[72];\

  966.     qpel_h_lowpass(halfH, src, 8, srcStride, 9, 16-r);\

  967.     qpel_v_lowpass(dst, halfH, dstStride, 8, 8, 16-r);\

  968. }\

  969. qpel_mc_func qpel_mc ## name ## _tab[16]={ \

  970.     qpel_mc00_c ## name,                                                                   \

  971.     qpel_mc10_c ## name,                                                                   \

  972.     qpel_mc20_c ## name,                                                                   \

  973.     qpel_mc30_c ## name,                                                                   \

  974.     qpel_mc01_c ## name,                                                                   \

  975.     qpel_mc11_c ## name,                                                                   \

  976.     qpel_mc21_c ## name,                                                                   \

  977.     qpel_mc31_c ## name,                                                                   \

  978.     qpel_mc02_c ## name,                                                                   \

  979.     qpel_mc12_c ## name,                                                                   \

  980.     qpel_mc22_c ## name,                                                                   \

  981.     qpel_mc32_c ## name,                                                                   \

  982.     qpel_mc03_c ## name,                                                                   \

  983.     qpel_mc13_c ## name,                                                                   \

  984.     qpel_mc23_c ## name,                                                                   \

  985.     qpel_mc33_c ## name,                                                                   \

  986. };

  987. 

  988. QPEL_MC(0, _rnd)

  989. QPEL_MC(1, _no_rnd)

  990. 

  991. int pix_abs16x16_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  992. {

  993.     int s, i;

  994. 

  995.     s = 0;

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

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

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

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

  1000.         s += abs(pix1[3] - pix2[3]);

  1001.         s += abs(pix1[4] - pix2[4]);

  1002.         s += abs(pix1[5] - pix2[5]);

  1003.         s += abs(pix1[6] - pix2[6]);

  1004.         s += abs(pix1[7] - pix2[7]);

  1005.         s += abs(pix1[8] - pix2[8]);

  1006.         s += abs(pix1[9] - pix2[9]);

  1007.         s += abs(pix1[10] - pix2[10]);

  1008.         s += abs(pix1[11] - pix2[11]);

  1009.         s += abs(pix1[12] - pix2[12]);

  1010.         s += abs(pix1[13] - pix2[13]);

  1011.         s += abs(pix1[14] - pix2[14]);

  1012.         s += abs(pix1[15] - pix2[15]);

  1013.         pix1 += line_size;

  1014.         pix2 += line_size;

  1015.     }

  1016.     return s;

  1017. }

  1018. 

  1019. int pix_abs16x16_x2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1020. {

  1021.     int s, i;

  1022. 

  1023.     s = 0;

  1024.     for(i=0;i<16;i++) {

  1025.         s += abs(pix1[0] - avg2(pix2[0], pix2[1]));

  1026.         s += abs(pix1[1] - avg2(pix2[1], pix2[2]));

  1027.         s += abs(pix1[2] - avg2(pix2[2], pix2[3]));

  1028.         s += abs(pix1[3] - avg2(pix2[3], pix2[4]));

  1029.         s += abs(pix1[4] - avg2(pix2[4], pix2[5]));

  1030.         s += abs(pix1[5] - avg2(pix2[5], pix2[6]));

  1031.         s += abs(pix1[6] - avg2(pix2[6], pix2[7]));

  1032.         s += abs(pix1[7] - avg2(pix2[7], pix2[8]));

  1033.         s += abs(pix1[8] - avg2(pix2[8], pix2[9]));

  1034.         s += abs(pix1[9] - avg2(pix2[9], pix2[10]));

  1035.         s += abs(pix1[10] - avg2(pix2[10], pix2[11]));

  1036.         s += abs(pix1[11] - avg2(pix2[11], pix2[12]));

  1037.         s += abs(pix1[12] - avg2(pix2[12], pix2[13]));

  1038.         s += abs(pix1[13] - avg2(pix2[13], pix2[14]));

  1039.         s += abs(pix1[14] - avg2(pix2[14], pix2[15]));

  1040.         s += abs(pix1[15] - avg2(pix2[15], pix2[16]));

  1041.         pix1 += line_size;

  1042.         pix2 += line_size;

  1043.     }

  1044.     return s;

  1045. }

  1046. 

  1047. int pix_abs16x16_y2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1048. {

  1049.     int s, i;

  1050.     UINT8 *pix3 = pix2 + line_size;

  1051. 

  1052.     s = 0;

  1053.     for(i=0;i<16;i++) {

  1054.         s += abs(pix1[0] - avg2(pix2[0], pix3[0]));

  1055.         s += abs(pix1[1] - avg2(pix2[1], pix3[1]));

  1056.         s += abs(pix1[2] - avg2(pix2[2], pix3[2]));

  1057.         s += abs(pix1[3] - avg2(pix2[3], pix3[3]));

  1058.         s += abs(pix1[4] - avg2(pix2[4], pix3[4]));

  1059.         s += abs(pix1[5] - avg2(pix2[5], pix3[5]));

  1060.         s += abs(pix1[6] - avg2(pix2[6], pix3[6]));

  1061.         s += abs(pix1[7] - avg2(pix2[7], pix3[7]));

  1062.         s += abs(pix1[8] - avg2(pix2[8], pix3[8]));

  1063.         s += abs(pix1[9] - avg2(pix2[9], pix3[9]));

  1064.         s += abs(pix1[10] - avg2(pix2[10], pix3[10]));

  1065.         s += abs(pix1[11] - avg2(pix2[11], pix3[11]));

  1066.         s += abs(pix1[12] - avg2(pix2[12], pix3[12]));

  1067.         s += abs(pix1[13] - avg2(pix2[13], pix3[13]));

  1068.         s += abs(pix1[14] - avg2(pix2[14], pix3[14]));

  1069.         s += abs(pix1[15] - avg2(pix2[15], pix3[15]));

  1070.         pix1 += line_size;

  1071.         pix2 += line_size;

  1072.         pix3 += line_size;

  1073.     }

  1074.     return s;

  1075. }

  1076. 

  1077. int pix_abs16x16_xy2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1078. {

  1079.     int s, i;

  1080.     UINT8 *pix3 = pix2 + line_size;

  1081. 

  1082.     s = 0;

  1083.     for(i=0;i<16;i++) {

  1084.         s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));

  1085.         s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));

  1086.         s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));

  1087.         s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));

  1088.         s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));

  1089.         s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));

  1090.         s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));

  1091.         s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));

  1092.         s += abs(pix1[8] - avg4(pix2[8], pix2[9], pix3[8], pix3[9]));

  1093.         s += abs(pix1[9] - avg4(pix2[9], pix2[10], pix3[9], pix3[10]));

  1094.         s += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));

  1095.         s += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));

  1096.         s += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));

  1097.         s += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));

  1098.         s += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));

  1099.         s += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));

  1100.         pix1 += line_size;

  1101.         pix2 += line_size;

  1102.         pix3 += line_size;

  1103.     }

  1104.     return s;

  1105. }

  1106. 

  1107. int pix_abs8x8_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1108. {

  1109.     int s, i;

  1110. 

  1111.     s = 0;

  1112.     for(i=0;i<8;i++) {

  1113.         s += abs(pix1[0] - pix2[0]);

  1114.         s += abs(pix1[1] - pix2[1]);

  1115.         s += abs(pix1[2] - pix2[2]);

  1116.         s += abs(pix1[3] - pix2[3]);

  1117.         s += abs(pix1[4] - pix2[4]);

  1118.         s += abs(pix1[5] - pix2[5]);

  1119.         s += abs(pix1[6] - pix2[6]);

  1120.         s += abs(pix1[7] - pix2[7]);

  1121.         pix1 += line_size;

  1122.         pix2 += line_size;

  1123.     }

  1124.     return s;

  1125. }

  1126. 

  1127. int pix_abs8x8_x2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1128. {

  1129.     int s, i;

  1130. 

  1131.     s = 0;

  1132.     for(i=0;i<8;i++) {

  1133.         s += abs(pix1[0] - avg2(pix2[0], pix2[1]));

  1134.         s += abs(pix1[1] - avg2(pix2[1], pix2[2]));

  1135.         s += abs(pix1[2] - avg2(pix2[2], pix2[3]));

  1136.         s += abs(pix1[3] - avg2(pix2[3], pix2[4]));

  1137.         s += abs(pix1[4] - avg2(pix2[4], pix2[5]));

  1138.         s += abs(pix1[5] - avg2(pix2[5], pix2[6]));

  1139.         s += abs(pix1[6] - avg2(pix2[6], pix2[7]));

  1140.         s += abs(pix1[7] - avg2(pix2[7], pix2[8]));

  1141.         pix1 += line_size;

  1142.         pix2 += line_size;

  1143.     }

  1144.     return s;

  1145. }

  1146. 

  1147. int pix_abs8x8_y2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1148. {

  1149.     int s, i;

  1150.     UINT8 *pix3 = pix2 + line_size;

  1151. 

  1152.     s = 0;

  1153.     for(i=0;i<8;i++) {

  1154.         s += abs(pix1[0] - avg2(pix2[0], pix3[0]));

  1155.         s += abs(pix1[1] - avg2(pix2[1], pix3[1]));

  1156.         s += abs(pix1[2] - avg2(pix2[2], pix3[2]));

  1157.         s += abs(pix1[3] - avg2(pix2[3], pix3[3]));

  1158.         s += abs(pix1[4] - avg2(pix2[4], pix3[4]));

  1159.         s += abs(pix1[5] - avg2(pix2[5], pix3[5]));

  1160.         s += abs(pix1[6] - avg2(pix2[6], pix3[6]));

  1161.         s += abs(pix1[7] - avg2(pix2[7], pix3[7]));

  1162.         pix1 += line_size;

  1163.         pix2 += line_size;

  1164.         pix3 += line_size;

  1165.     }

  1166.     return s;

  1167. }

  1168. 

  1169. int pix_abs8x8_xy2_c(UINT8 *pix1, UINT8 *pix2, int line_size)

  1170. {

  1171.     int s, i;

  1172.     UINT8 *pix3 = pix2 + line_size;

  1173. 

  1174.     s = 0;

  1175.     for(i=0;i<8;i++) {

  1176.         s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));

  1177.         s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));

  1178.         s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));

  1179.         s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));

  1180.         s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));

  1181.         s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));

  1182.         s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));

  1183.         s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));

  1184.         pix1 += line_size;

  1185.         pix2 += line_size;

  1186.         pix3 += line_size;

  1187.     }

  1188.     return s;

  1189. }

  1190. 

  1191. /* permute block according so that it corresponds to the MMX idct

  1192.    order */

  1193. #ifdef SIMPLE_IDCT

  1194.  /* general permutation, but perhaps slightly slower */

  1195. void block_permute(INT16 *block)

  1196. {

  1197. 	int i;

  1198. 	INT16 temp[64];

  1199. 

  1200. 	for(i=0; i<64; i++) temp[ block_permute_op(i) ] = block[i];

  1201. 

  1202. 	for(i=0; i<64; i++) block[i] = temp[i];

  1203. }

  1204. #else

  1205. 

  1206. void block_permute(INT16 *block)

  1207. {

  1208.     int tmp1, tmp2, tmp3, tmp4, tmp5, tmp6;

  1209.     int i;

  1210. 

  1211.     for(i=0;i<8;i++) {

  1212.         tmp1 = block[1];

  1213.         tmp2 = block[2];

  1214.         tmp3 = block[3];

  1215.         tmp4 = block[4];

  1216.         tmp5 = block[5];

  1217.         tmp6 = block[6];

  1218.         block[1] = tmp2;

  1219.         block[2] = tmp4;

  1220.         block[3] = tmp6;

  1221.         block[4] = tmp1;

  1222.         block[5] = tmp3;

  1223.         block[6] = tmp5;

  1224.         block += 8;

  1225.     }

  1226. }

  1227. #endif

  1228. 

  1229. void clear_blocks_c(DCTELEM *blocks)

  1230. {

  1231.     memset(blocks, 0, sizeof(DCTELEM)*6*64);

  1232. }

  1233. 

  1234. /* XXX: those functions should be suppressed ASAP when all IDCTs are

  1235.    converted */

  1236. void gen_idct_put(UINT8 *dest, int line_size, DCTELEM *block)

  1237. {

  1238.     ff_idct (block);

  1239.     put_pixels_clamped(block, dest, line_size);

  1240. }

  1241. 

  1242. void gen_idct_add(UINT8 *dest, int line_size, DCTELEM *block)

  1243. {

  1244.     ff_idct (block);

  1245.     add_pixels_clamped(block, dest, line_size);

  1246. }

  1247. 

  1248. void dsputil_init(void)

  1249. {

  1250.     int i, j;

  1251.     int use_permuted_idct;

  1252. 

  1253.     for(i=0;i<256;i++) cropTbl[i + MAX_NEG_CROP] = i;

  1254.     for(i=0;i<MAX_NEG_CROP;i++) {

  1255.         cropTbl[i] = 0;

  1256.         cropTbl[i + MAX_NEG_CROP + 256] = 255;

  1257.     }

  1258. 

  1259.     for(i=0;i<512;i++) {

  1260.         squareTbl[i] = (i - 256) * (i - 256);

  1261.     }

  1262. 

  1263. #ifdef SIMPLE_IDCT

  1264.     ff_idct = NULL;

  1265. #else

  1266.     ff_idct = j_rev_dct;

  1267. #endif

  1268.     get_pixels = get_pixels_c;

  1269.     diff_pixels = diff_pixels_c;

  1270.     put_pixels_clamped = put_pixels_clamped_c;

  1271.     add_pixels_clamped = add_pixels_clamped_c;

  1272.     gmc1= gmc1_c;

  1273.     clear_blocks= clear_blocks_c;

  1274. 

  1275.     pix_abs16x16     = pix_abs16x16_c;

  1276.     pix_abs16x16_x2  = pix_abs16x16_x2_c;

  1277.     pix_abs16x16_y2  = pix_abs16x16_y2_c;

  1278.     pix_abs16x16_xy2 = pix_abs16x16_xy2_c;

  1279.     pix_abs8x8     = pix_abs8x8_c;

  1280.     pix_abs8x8_x2  = pix_abs8x8_x2_c;

  1281.     pix_abs8x8_y2  = pix_abs8x8_y2_c;

  1282.     pix_abs8x8_xy2 = pix_abs8x8_xy2_c;

  1283.     av_fdct = fdct_ifast;

  1284. 

  1285.     use_permuted_idct = 1;

  1286. 

  1287. #ifdef HAVE_MMX

  1288.     dsputil_init_mmx();

  1289. #endif

  1290. #ifdef ARCH_ARMV4L

  1291.     dsputil_init_armv4l();

  1292. #endif

  1293. #ifdef HAVE_MLIB

  1294.     dsputil_init_mlib();

  1295.     use_permuted_idct = 0;

  1296. #endif

  1297. #ifdef ARCH_ALPHA

  1298.     dsputil_init_alpha();

  1299.     use_permuted_idct = 0;

  1300. #endif

  1301. 

  1302. #ifdef SIMPLE_IDCT

  1303.     if (ff_idct == NULL) {

  1304.         ff_idct_put = simple_idct_put;

  1305.         ff_idct_add = simple_idct_add;

  1306.         use_permuted_idct=0;

  1307.     } else {

  1308.         ff_idct_put = gen_idct_put;

  1309.         ff_idct_add = gen_idct_add;

  1310.     }

  1311. #endif

  1312. 

  1313.     if(use_permuted_idct)

  1314. #ifdef SIMPLE_IDCT

  1315.         for(i=0; i<64; i++) permutation[i]= simple_mmx_permutation[i];

  1316. #else

  1317.         for(i=0; i<64; i++) permutation[i]= (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);

  1318. #endif

  1319.     else

  1320.         for(i=0; i<64; i++) permutation[i]=i;

  1321. 

  1322.     for(i=0; i<64; i++) inv_zigzag_direct16[zigzag_direct[i]]= i+1;

  1323.     for(i=0; i<64; i++) zigzag_direct_noperm[i]= zigzag_direct[i];

  1324.     

  1325.     if (use_permuted_idct) {

  1326.         /* permute for IDCT */

  1327.         for(i=0;i<64;i++) {

  1328.             j = zigzag_direct[i];

  1329.             zigzag_direct[i] = block_permute_op(j);

  1330.             j = ff_alternate_horizontal_scan[i];

  1331.             ff_alternate_horizontal_scan[i] = block_permute_op(j);

  1332.             j = ff_alternate_vertical_scan[i];

  1333.             ff_alternate_vertical_scan[i] = block_permute_op(j);

  1334.         }

  1335.         block_permute(default_intra_matrix);

  1336.         block_permute(default_non_intra_matrix);

  1337.         block_permute(ff_mpeg4_default_intra_matrix);

  1338.         block_permute(ff_mpeg4_default_non_intra_matrix);

  1339.     }

  1340.     

  1341.     build_zigzag_end();

  1342. }

  1343. 

  1344. /* remove any non bit exact operation (testing purpose) */

  1345. void avcodec_set_bit_exact(void)

  1346. {

  1347. #ifdef HAVE_MMX

  1348.     dsputil_set_bit_exact_mmx();

  1349. #endif

  1350. }

  1351. 

  1352. void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],

  1353.               int orig_linesize[3], int coded_linesize,

  1354.               AVCodecContext *avctx)

  1355. {

  1356.     int quad, diff, x, y;

  1357.     UINT8 *orig, *coded;

  1358.     UINT32 *sq = squareTbl + 256;

  1359.     

  1360.     quad = 0;

  1361.     diff = 0;

  1362.     

  1363.     /* Luminance */

  1364.     orig = orig_image[0];

  1365.     coded = coded_image[0];

  1366.     

  1367.     for (y=0;y<avctx->height;y++) {

  1368.         for (x=0;x<avctx->width;x++) {

  1369.             diff = *(orig + x) - *(coded + x);

  1370.             quad += sq[diff];

  1371.         }

  1372.         orig += orig_linesize[0];

  1373.         coded += coded_linesize;

  1374.     }

  1375.    

  1376.     avctx->psnr_y = (float) quad / (float) (avctx->width * avctx->height);

  1377.     

  1378.     if (avctx->psnr_y) {

  1379.         avctx->psnr_y = (float) (255 * 255) / avctx->psnr_y;

  1380.         avctx->psnr_y = 10 * (float) log10 (avctx->psnr_y); 

  1381.     } else

  1382.         avctx->psnr_y = 99.99;

  1383. }