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FFmpeg/libavcodec/vc1dsp.c

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  1. /*

  2.  * VC-1 and WMV3 decoder - DSP functions

  3.  * Copyright (c) 2006 Konstantin Shishkov

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

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

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

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

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

  11.  *

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

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

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

  15.  * Lesser General Public License for more details.

  16.  *

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

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

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

  20.  */

  21. 

  22. /**

  23. * @file libavcodec/vc1dsp.c

  24.  * VC-1 and WMV3 decoder

  25.  *

  26.  */

  27. 

  28. #include "dsputil.h"

  29. 

  30. 

  31. /** Apply overlap transform to horizontal edge

  32. */

  33. static void vc1_v_overlap_c(uint8_t* src, int stride)

  34. {

  35.     int i;

  36.     int a, b, c, d;

  37.     int d1, d2;

  38.     int rnd = 1;

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

  40.         a = src[-2*stride];

  41.         b = src[-stride];

  42.         c = src[0];

  43.         d = src[stride];

  44.         d1 = (a - d + 3 + rnd) >> 3;

  45.         d2 = (a - d + b - c + 4 - rnd) >> 3;

  46. 

  47.         src[-2*stride] = a - d1;

  48.         src[-stride] = av_clip_uint8(b - d2);

  49.         src[0] = av_clip_uint8(c + d2);

  50.         src[stride] = d + d1;

  51.         src++;

  52.         rnd = !rnd;

  53.     }

  54. }

  55. 

  56. /** Apply overlap transform to vertical edge

  57. */

  58. static void vc1_h_overlap_c(uint8_t* src, int stride)

  59. {

  60.     int i;

  61.     int a, b, c, d;

  62.     int d1, d2;

  63.     int rnd = 1;

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

  65.         a = src[-2];

  66.         b = src[-1];

  67.         c = src[0];

  68.         d = src[1];

  69.         d1 = (a - d + 3 + rnd) >> 3;

  70.         d2 = (a - d + b - c + 4 - rnd) >> 3;

  71. 

  72.         src[-2] = a - d1;

  73.         src[-1] = av_clip_uint8(b - d2);

  74.         src[0] = av_clip_uint8(c + d2);

  75.         src[1] = d + d1;

  76.         src += stride;

  77.         rnd = !rnd;

  78.     }

  79. }

  80. 

  81. /**

  82.  * VC-1 in-loop deblocking filter for one line

  83.  * @param src source block type

  84.  * @param stride block stride

  85.  * @param pq block quantizer

  86.  * @return whether other 3 pairs should be filtered or not

  87.  * @see 8.6

  88.  */

  89. static av_always_inline int vc1_filter_line(uint8_t* src, int stride, int pq){

  90.     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  91. 

  92.     int a0 = (2*(src[-2*stride] - src[ 1*stride]) - 5*(src[-1*stride] - src[ 0*stride]) + 4) >> 3;

  93.     int a0_sign = a0 >> 31;        /* Store sign */

  94.     a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */

  95.     if(a0 < pq){

  96.         int a1 = FFABS((2*(src[-4*stride] - src[-1*stride]) - 5*(src[-3*stride] - src[-2*stride]) + 4) >> 3);

  97.         int a2 = FFABS((2*(src[ 0*stride] - src[ 3*stride]) - 5*(src[ 1*stride] - src[ 2*stride]) + 4) >> 3);

  98.         if(a1 < a0 || a2 < a0){

  99.             int clip = src[-1*stride] - src[ 0*stride];

  100.             int clip_sign = clip >> 31;

  101.             clip = ((clip ^ clip_sign) - clip_sign)>>1;

  102.             if(clip){

  103.                 int a3 = FFMIN(a1, a2);

  104.                 int d = 5 * (a3 - a0);

  105.                 int d_sign = (d >> 31);

  106.                 d = ((d ^ d_sign) - d_sign) >> 3;

  107.                 d_sign ^= a0_sign;

  108. 

  109.                 if( d_sign ^ clip_sign )

  110.                     d = 0;

  111.                 else{

  112.                     d = FFMIN(d, clip);

  113.                     d = (d ^ d_sign) - d_sign;          /* Restore sign */

  114.                     src[-1*stride] = cm[src[-1*stride] - d];

  115.                     src[ 0*stride] = cm[src[ 0*stride] + d];

  116.                 }

  117.                 return 1;

  118.             }

  119.         }

  120.     }

  121.     return 0;

  122. }

  123. 

  124. /**

  125.  * VC-1 in-loop deblocking filter

  126.  * @param src source block type

  127.  * @param step distance between horizontally adjacent elements

  128.  * @param stride distance between vertically adjacent elements

  129.  * @param len edge length to filter (4 or 8 pixels)

  130.  * @param pq block quantizer

  131.  * @see 8.6

  132.  */

  133. static inline void vc1_loop_filter(uint8_t* src, int step, int stride, int len, int pq)

  134. {

  135.     int i;

  136.     int filt3;

  137. 

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

  139.         filt3 = vc1_filter_line(src + 2*step, stride, pq);

  140.         if(filt3){

  141.             vc1_filter_line(src + 0*step, stride, pq);

  142.             vc1_filter_line(src + 1*step, stride, pq);

  143.             vc1_filter_line(src + 3*step, stride, pq);

  144.         }

  145.         src += step * 4;

  146.     }

  147. }

  148. 

  149. static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)

  150. {

  151.     vc1_loop_filter(src, 1, stride, 4, pq);

  152. }

  153. 

  154. static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)

  155. {

  156.     vc1_loop_filter(src, stride, 1, 4, pq);

  157. }

  158. 

  159. static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)

  160. {

  161.     vc1_loop_filter(src, 1, stride, 8, pq);

  162. }

  163. 

  164. static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)

  165. {

  166.     vc1_loop_filter(src, stride, 1, 8, pq);

  167. }

  168. 

  169. static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)

  170. {

  171.     vc1_loop_filter(src, 1, stride, 16, pq);

  172. }

  173. 

  174. static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)

  175. {

  176.     vc1_loop_filter(src, stride, 1, 16, pq);

  177. }

  178. 

  179. /** Do inverse transform on 8x8 block

  180. */

  181. static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)

  182. {

  183.     int i;

  184.     int dc = block[0];

  185.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  186.     dc = (3 * dc +  1) >> 1;

  187.     dc = (3 * dc + 16) >> 5;

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

  189.         dest[0] = cm[dest[0]+dc];

  190.         dest[1] = cm[dest[1]+dc];

  191.         dest[2] = cm[dest[2]+dc];

  192.         dest[3] = cm[dest[3]+dc];

  193.         dest[4] = cm[dest[4]+dc];

  194.         dest[5] = cm[dest[5]+dc];

  195.         dest[6] = cm[dest[6]+dc];

  196.         dest[7] = cm[dest[7]+dc];

  197.         dest += linesize;

  198.     }

  199. }

  200. 

  201. static void vc1_inv_trans_8x8_c(DCTELEM block[64])

  202. {

  203.     int i;

  204.     register int t1,t2,t3,t4,t5,t6,t7,t8;

  205.     DCTELEM *src, *dst;

  206. 

  207.     src = block;

  208.     dst = block;

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

  210.         t1 = 12 * (src[0] + src[4]) + 4;

  211.         t2 = 12 * (src[0] - src[4]) + 4;

  212.         t3 = 16 * src[2] +  6 * src[6];

  213.         t4 =  6 * src[2] - 16 * src[6];

  214. 

  215.         t5 = t1 + t3;

  216.         t6 = t2 + t4;

  217.         t7 = t2 - t4;

  218.         t8 = t1 - t3;

  219. 

  220.         t1 = 16 * src[1] + 15 * src[3] +  9 * src[5] +  4 * src[7];

  221.         t2 = 15 * src[1] -  4 * src[3] - 16 * src[5] -  9 * src[7];

  222.         t3 =  9 * src[1] - 16 * src[3] +  4 * src[5] + 15 * src[7];

  223.         t4 =  4 * src[1] -  9 * src[3] + 15 * src[5] - 16 * src[7];

  224. 

  225.         dst[0] = (t5 + t1) >> 3;

  226.         dst[1] = (t6 + t2) >> 3;

  227.         dst[2] = (t7 + t3) >> 3;

  228.         dst[3] = (t8 + t4) >> 3;

  229.         dst[4] = (t8 - t4) >> 3;

  230.         dst[5] = (t7 - t3) >> 3;

  231.         dst[6] = (t6 - t2) >> 3;

  232.         dst[7] = (t5 - t1) >> 3;

  233. 

  234.         src += 8;

  235.         dst += 8;

  236.     }

  237. 

  238.     src = block;

  239.     dst = block;

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

  241.         t1 = 12 * (src[ 0] + src[32]) + 64;

  242.         t2 = 12 * (src[ 0] - src[32]) + 64;

  243.         t3 = 16 * src[16] +  6 * src[48];

  244.         t4 =  6 * src[16] - 16 * src[48];

  245. 

  246.         t5 = t1 + t3;

  247.         t6 = t2 + t4;

  248.         t7 = t2 - t4;

  249.         t8 = t1 - t3;

  250. 

  251.         t1 = 16 * src[ 8] + 15 * src[24] +  9 * src[40] +  4 * src[56];

  252.         t2 = 15 * src[ 8] -  4 * src[24] - 16 * src[40] -  9 * src[56];

  253.         t3 =  9 * src[ 8] - 16 * src[24] +  4 * src[40] + 15 * src[56];

  254.         t4 =  4 * src[ 8] -  9 * src[24] + 15 * src[40] - 16 * src[56];

  255. 

  256.         dst[ 0] = (t5 + t1) >> 7;

  257.         dst[ 8] = (t6 + t2) >> 7;

  258.         dst[16] = (t7 + t3) >> 7;

  259.         dst[24] = (t8 + t4) >> 7;

  260.         dst[32] = (t8 - t4 + 1) >> 7;

  261.         dst[40] = (t7 - t3 + 1) >> 7;

  262.         dst[48] = (t6 - t2 + 1) >> 7;

  263.         dst[56] = (t5 - t1 + 1) >> 7;

  264. 

  265.         src++;

  266.         dst++;

  267.     }

  268. }

  269. 

  270. /** Do inverse transform on 8x4 part of block

  271. */

  272. static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)

  273. {

  274.     int i;

  275.     int dc = block[0];

  276.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  277.     dc = ( 3 * dc +  1) >> 1;

  278.     dc = (17 * dc + 64) >> 7;

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

  280.         dest[0] = cm[dest[0]+dc];

  281.         dest[1] = cm[dest[1]+dc];

  282.         dest[2] = cm[dest[2]+dc];

  283.         dest[3] = cm[dest[3]+dc];

  284.         dest[4] = cm[dest[4]+dc];

  285.         dest[5] = cm[dest[5]+dc];

  286.         dest[6] = cm[dest[6]+dc];

  287.         dest[7] = cm[dest[7]+dc];

  288.         dest += linesize;

  289.     }

  290. }

  291. 

  292. static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)

  293. {

  294.     int i;

  295.     register int t1,t2,t3,t4,t5,t6,t7,t8;

  296.     DCTELEM *src, *dst;

  297.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  298. 

  299.     src = block;

  300.     dst = block;

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

  302.         t1 = 12 * (src[0] + src[4]) + 4;

  303.         t2 = 12 * (src[0] - src[4]) + 4;

  304.         t3 = 16 * src[2] +  6 * src[6];

  305.         t4 =  6 * src[2] - 16 * src[6];

  306. 

  307.         t5 = t1 + t3;

  308.         t6 = t2 + t4;

  309.         t7 = t2 - t4;

  310.         t8 = t1 - t3;

  311. 

  312.         t1 = 16 * src[1] + 15 * src[3] +  9 * src[5] +  4 * src[7];

  313.         t2 = 15 * src[1] -  4 * src[3] - 16 * src[5] -  9 * src[7];

  314.         t3 =  9 * src[1] - 16 * src[3] +  4 * src[5] + 15 * src[7];

  315.         t4 =  4 * src[1] -  9 * src[3] + 15 * src[5] - 16 * src[7];

  316. 

  317.         dst[0] = (t5 + t1) >> 3;

  318.         dst[1] = (t6 + t2) >> 3;

  319.         dst[2] = (t7 + t3) >> 3;

  320.         dst[3] = (t8 + t4) >> 3;

  321.         dst[4] = (t8 - t4) >> 3;

  322.         dst[5] = (t7 - t3) >> 3;

  323.         dst[6] = (t6 - t2) >> 3;

  324.         dst[7] = (t5 - t1) >> 3;

  325. 

  326.         src += 8;

  327.         dst += 8;

  328.     }

  329. 

  330.     src = block;

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

  332.         t1 = 17 * (src[ 0] + src[16]) + 64;

  333.         t2 = 17 * (src[ 0] - src[16]) + 64;

  334.         t3 = 22 * src[ 8] + 10 * src[24];

  335.         t4 = 22 * src[24] - 10 * src[ 8];

  336. 

  337.         dest[0*linesize] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];

  338.         dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];

  339.         dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];

  340.         dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];

  341. 

  342.         src ++;

  343.         dest++;

  344.     }

  345. }

  346. 

  347. /** Do inverse transform on 4x8 parts of block

  348. */

  349. static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)

  350. {

  351.     int i;

  352.     int dc = block[0];

  353.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  354.     dc = (17 * dc +  4) >> 3;

  355.     dc = (12 * dc + 64) >> 7;

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

  357.         dest[0] = cm[dest[0]+dc];

  358.         dest[1] = cm[dest[1]+dc];

  359.         dest[2] = cm[dest[2]+dc];

  360.         dest[3] = cm[dest[3]+dc];

  361.         dest += linesize;

  362.     }

  363. }

  364. 

  365. static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)

  366. {

  367.     int i;

  368.     register int t1,t2,t3,t4,t5,t6,t7,t8;

  369.     DCTELEM *src, *dst;

  370.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  371. 

  372.     src = block;

  373.     dst = block;

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

  375.         t1 = 17 * (src[0] + src[2]) + 4;

  376.         t2 = 17 * (src[0] - src[2]) + 4;

  377.         t3 = 22 * src[1] + 10 * src[3];

  378.         t4 = 22 * src[3] - 10 * src[1];

  379. 

  380.         dst[0] = (t1 + t3) >> 3;

  381.         dst[1] = (t2 - t4) >> 3;

  382.         dst[2] = (t2 + t4) >> 3;

  383.         dst[3] = (t1 - t3) >> 3;

  384. 

  385.         src += 8;

  386.         dst += 8;

  387.     }

  388. 

  389.     src = block;

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

  391.         t1 = 12 * (src[ 0] + src[32]) + 64;

  392.         t2 = 12 * (src[ 0] - src[32]) + 64;

  393.         t3 = 16 * src[16] +  6 * src[48];

  394.         t4 =  6 * src[16] - 16 * src[48];

  395. 

  396.         t5 = t1 + t3;

  397.         t6 = t2 + t4;

  398.         t7 = t2 - t4;

  399.         t8 = t1 - t3;

  400. 

  401.         t1 = 16 * src[ 8] + 15 * src[24] +  9 * src[40] +  4 * src[56];

  402.         t2 = 15 * src[ 8] -  4 * src[24] - 16 * src[40] -  9 * src[56];

  403.         t3 =  9 * src[ 8] - 16 * src[24] +  4 * src[40] + 15 * src[56];

  404.         t4 =  4 * src[ 8] -  9 * src[24] + 15 * src[40] - 16 * src[56];

  405. 

  406.         dest[0*linesize] = cm[dest[0*linesize] + ((t5 + t1) >> 7)];

  407.         dest[1*linesize] = cm[dest[1*linesize] + ((t6 + t2) >> 7)];

  408.         dest[2*linesize] = cm[dest[2*linesize] + ((t7 + t3) >> 7)];

  409.         dest[3*linesize] = cm[dest[3*linesize] + ((t8 + t4) >> 7)];

  410.         dest[4*linesize] = cm[dest[4*linesize] + ((t8 - t4 + 1) >> 7)];

  411.         dest[5*linesize] = cm[dest[5*linesize] + ((t7 - t3 + 1) >> 7)];

  412.         dest[6*linesize] = cm[dest[6*linesize] + ((t6 - t2 + 1) >> 7)];

  413.         dest[7*linesize] = cm[dest[7*linesize] + ((t5 - t1 + 1) >> 7)];

  414. 

  415.         src ++;

  416.         dest++;

  417.     }

  418. }

  419. 

  420. /** Do inverse transform on 4x4 part of block

  421. */

  422. static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)

  423. {

  424.     int i;

  425.     int dc = block[0];

  426.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  427.     dc = (17 * dc +  4) >> 3;

  428.     dc = (17 * dc + 64) >> 7;

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

  430.         dest[0] = cm[dest[0]+dc];

  431.         dest[1] = cm[dest[1]+dc];

  432.         dest[2] = cm[dest[2]+dc];

  433.         dest[3] = cm[dest[3]+dc];

  434.         dest += linesize;

  435.     }

  436. }

  437. 

  438. static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block)

  439. {

  440.     int i;

  441.     register int t1,t2,t3,t4;

  442.     DCTELEM *src, *dst;

  443.     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;

  444. 

  445.     src = block;

  446.     dst = block;

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

  448.         t1 = 17 * (src[0] + src[2]) + 4;

  449.         t2 = 17 * (src[0] - src[2]) + 4;

  450.         t3 = 22 * src[1] + 10 * src[3];

  451.         t4 = 22 * src[3] - 10 * src[1];

  452. 

  453.         dst[0] = (t1 + t3) >> 3;

  454.         dst[1] = (t2 - t4) >> 3;

  455.         dst[2] = (t2 + t4) >> 3;

  456.         dst[3] = (t1 - t3) >> 3;

  457. 

  458.         src += 8;

  459.         dst += 8;

  460.     }

  461. 

  462.     src = block;

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

  464.         t1 = 17 * (src[ 0] + src[16]) + 64;

  465.         t2 = 17 * (src[ 0] - src[16]) + 64;

  466.         t3 = 22 * src[ 8] + 10 * src[24];

  467.         t4 = 22 * src[24] - 10 * src[ 8];

  468. 

  469.         dest[0*linesize] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];

  470.         dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];

  471.         dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];

  472.         dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];

  473. 

  474.         src ++;

  475.         dest++;

  476.     }

  477. }

  478. 

  479. /* motion compensation functions */

  480. /** Filter in case of 2 filters */

  481. #define VC1_MSPEL_FILTER_16B(DIR, TYPE)                                 \

  482. static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \

  483. {                                                                       \

  484.     switch(mode){                                                       \

  485.     case 0: /* no shift - should not occur */                           \

  486.         return 0;                                                       \

  487.     case 1: /* 1/4 shift */                                             \

  488.         return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \

  489.     case 2: /* 1/2 shift */                                             \

  490.         return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \

  491.     case 3: /* 3/4 shift */                                             \

  492.         return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \

  493.     }                                                                   \

  494.     return 0; /* should not occur */                                    \

  495. }

  496. 

  497. VC1_MSPEL_FILTER_16B(ver, uint8_t);

  498. VC1_MSPEL_FILTER_16B(hor, int16_t);

  499. 

  500. 

  501. /** Filter used to interpolate fractional pel values

  502.  */

  503. static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)

  504. {

  505.     switch(mode){

  506.     case 0: //no shift

  507.         return src[0];

  508.     case 1: // 1/4 shift

  509.         return (-4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2] + 32 - r) >> 6;

  510.     case 2: // 1/2 shift

  511.         return (-src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2] + 8 - r) >> 4;

  512.     case 3: // 3/4 shift

  513.         return (-3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2] + 32 - r) >> 6;

  514.     }

  515.     return 0; //should not occur

  516. }

  517. 

  518. /** Function used to do motion compensation with bicubic interpolation

  519.  */

  520. #define VC1_MSPEL_MC(OP, OPNAME)\

  521. static void OPNAME ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride, int hmode, int vmode, int rnd)\

  522. {\

  523.     int     i, j;\

  524. \

  525.     if (vmode) { /* Horizontal filter to apply */\

  526.         int r;\

  527. \

  528.         if (hmode) { /* Vertical filter to apply, output to tmp */\

  529.             static const int shift_value[] = { 0, 5, 1, 5 };\

  530.             int              shift = (shift_value[hmode]+shift_value[vmode])>>1;\

  531.             int16_t          tmp[11*8], *tptr = tmp;\

  532. \

  533.             r = (1<<(shift-1)) + rnd-1;\

  534. \

  535.             src -= 1;\

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

  537.                 for(i = 0; i < 11; i++)\

  538.                     tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;\

  539.                 src += stride;\

  540.                 tptr += 11;\

  541.             }\

  542. \

  543.             r = 64-rnd;\

  544.             tptr = tmp+1;\

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

  546.                 for(i = 0; i < 8; i++)\

  547.                     OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);\

  548.                 dst += stride;\

  549.                 tptr += 11;\

  550.             }\

  551. \

  552.             return;\

  553.         }\

  554.         else { /* No horizontal filter, output 8 lines to dst */\

  555.             r = 1-rnd;\

  556. \

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

  558.                 for(i = 0; i < 8; i++)\

  559.                     OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r));\

  560.                 src += stride;\

  561.                 dst += stride;\

  562.             }\

  563.             return;\

  564.         }\

  565.     }\

  566. \

  567.     /* Horizontal mode with no vertical mode */\

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

  569.         for(i = 0; i < 8; i++)\

  570.             OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd));\

  571.         dst += stride;\

  572.         src += stride;\

  573.     }\

  574. }

  575. 

  576. #define op_put(a, b) a = av_clip_uint8(b)

  577. #define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1

  578. 

  579. VC1_MSPEL_MC(op_put, put_)

  580. VC1_MSPEL_MC(op_avg, avg_)

  581. 

  582. /* pixel functions - really are entry points to vc1_mspel_mc */

  583. 

  584. /* this one is defined in dsputil.c */

  585. void ff_put_vc1_mspel_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int rnd);

  586. void ff_avg_vc1_mspel_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int rnd);

  587. 

  588. #define PUT_VC1_MSPEL(a, b)\

  589. static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \

  590.      put_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \

  591. }\

  592. static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \

  593.      avg_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \

  594. }

  595. 

  596. PUT_VC1_MSPEL(1, 0)

  597. PUT_VC1_MSPEL(2, 0)

  598. PUT_VC1_MSPEL(3, 0)

  599. 

  600. PUT_VC1_MSPEL(0, 1)

  601. PUT_VC1_MSPEL(1, 1)

  602. PUT_VC1_MSPEL(2, 1)

  603. PUT_VC1_MSPEL(3, 1)

  604. 

  605. PUT_VC1_MSPEL(0, 2)

  606. PUT_VC1_MSPEL(1, 2)

  607. PUT_VC1_MSPEL(2, 2)

  608. PUT_VC1_MSPEL(3, 2)

  609. 

  610. PUT_VC1_MSPEL(0, 3)

  611. PUT_VC1_MSPEL(1, 3)

  612. PUT_VC1_MSPEL(2, 3)

  613. PUT_VC1_MSPEL(3, 3)

  614. 

  615. void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {

  616.     dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;

  617.     dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;

  618.     dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;

  619.     dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;

  620.     dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;

  621.     dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;

  622.     dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;

  623.     dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;

  624.     dsp->vc1_h_overlap = vc1_h_overlap_c;

  625.     dsp->vc1_v_overlap = vc1_v_overlap_c;

  626.     dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;

  627.     dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;

  628.     dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;

  629.     dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;

  630.     dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;

  631.     dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;

  632. 

  633.     dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_vc1_mspel_mc00_c;

  634.     dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_c;

  635.     dsp->put_vc1_mspel_pixels_tab[ 2] = put_vc1_mspel_mc20_c;

  636.     dsp->put_vc1_mspel_pixels_tab[ 3] = put_vc1_mspel_mc30_c;

  637.     dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_c;

  638.     dsp->put_vc1_mspel_pixels_tab[ 5] = put_vc1_mspel_mc11_c;

  639.     dsp->put_vc1_mspel_pixels_tab[ 6] = put_vc1_mspel_mc21_c;

  640.     dsp->put_vc1_mspel_pixels_tab[ 7] = put_vc1_mspel_mc31_c;

  641.     dsp->put_vc1_mspel_pixels_tab[ 8] = put_vc1_mspel_mc02_c;

  642.     dsp->put_vc1_mspel_pixels_tab[ 9] = put_vc1_mspel_mc12_c;

  643.     dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;

  644.     dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;

  645.     dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;

  646.     dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;

  647.     dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;

  648.     dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;

  649. 

  650.     dsp->avg_vc1_mspel_pixels_tab[ 0] = ff_avg_vc1_mspel_mc00_c;

  651.     dsp->avg_vc1_mspel_pixels_tab[ 1] = avg_vc1_mspel_mc10_c;

  652.     dsp->avg_vc1_mspel_pixels_tab[ 2] = avg_vc1_mspel_mc20_c;

  653.     dsp->avg_vc1_mspel_pixels_tab[ 3] = avg_vc1_mspel_mc30_c;

  654.     dsp->avg_vc1_mspel_pixels_tab[ 4] = avg_vc1_mspel_mc01_c;

  655.     dsp->avg_vc1_mspel_pixels_tab[ 5] = avg_vc1_mspel_mc11_c;

  656.     dsp->avg_vc1_mspel_pixels_tab[ 6] = avg_vc1_mspel_mc21_c;

  657.     dsp->avg_vc1_mspel_pixels_tab[ 7] = avg_vc1_mspel_mc31_c;

  658.     dsp->avg_vc1_mspel_pixels_tab[ 8] = avg_vc1_mspel_mc02_c;

  659.     dsp->avg_vc1_mspel_pixels_tab[ 9] = avg_vc1_mspel_mc12_c;

  660.     dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;

  661.     dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;

  662.     dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;

  663.     dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;

  664.     dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;

  665.     dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;

  666. }