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FFmpeg/libavcodec/h264_loopfilter.c

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  1. /*

  2.  * H.26L/H.264/AVC/JVT/14496-10/... loop filter

  3.  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>

  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

  24.  * H.264 / AVC / MPEG4 part10 loop filter.

  25.  * @author Michael Niedermayer <michaelni@gmx.at>

  26.  */

  27. 

  28. #include "libavutil/intreadwrite.h"

  29. #include "internal.h"

  30. #include "dsputil.h"

  31. #include "avcodec.h"

  32. #include "mpegvideo.h"

  33. #include "h264.h"

  34. #include "mathops.h"

  35. #include "rectangle.h"

  36. 

  37. //#undef NDEBUG

  38. #include <assert.h>

  39. 

  40. /* Deblocking filter (p153) */

  41. static const uint8_t alpha_table[52*3] = {

  42.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  43.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  44.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  45.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  46.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  47.      0,  0,  0,  0,  0,  0,  4,  4,  5,  6,

  48.      7,  8,  9, 10, 12, 13, 15, 17, 20, 22,

  49.     25, 28, 32, 36, 40, 45, 50, 56, 63, 71,

  50.     80, 90,101,113,127,144,162,182,203,226,

  51.    255,255,

  52.    255,255,255,255,255,255,255,255,255,255,255,255,255,

  53.    255,255,255,255,255,255,255,255,255,255,255,255,255,

  54.    255,255,255,255,255,255,255,255,255,255,255,255,255,

  55.    255,255,255,255,255,255,255,255,255,255,255,255,255,

  56. };

  57. static const uint8_t beta_table[52*3] = {

  58.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  59.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  60.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  61.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  62.      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,

  63.      0,  0,  0,  0,  0,  0,  2,  2,  2,  3,

  64.      3,  3,  3,  4,  4,  4,  6,  6,  7,  7,

  65.      8,  8,  9,  9, 10, 10, 11, 11, 12, 12,

  66.     13, 13, 14, 14, 15, 15, 16, 16, 17, 17,

  67.     18, 18,

  68.     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,

  69.     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,

  70.     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,

  71.     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,

  72. };

  73. static const uint8_t tc0_table[52*3][4] = {

  74.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  75.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  76.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  77.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  78.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  79.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  80.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  81.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  82.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  83.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  84.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },

  85.     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },

  86.     {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },

  87.     {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },

  88.     {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },

  89.     {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },

  90.     {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },

  91.     {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },

  92.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  93.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  94.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  95.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  96.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  97.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  98.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  99.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  100.     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },

  101. };

  102. 

  103. static void av_always_inline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h) {

  104.     const int bit_depth = h->sps.bit_depth_luma;

  105.     const int qp_bd_offset = 6*(bit_depth-8);

  106.     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  107.     const int alpha = alpha_table[index_a] << (bit_depth-8);

  108.     const int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  109.     if (alpha ==0 || beta == 0) return;

  110. 

  111.     if( bS[0] < 4 ) {

  112.         int8_t tc[4];

  113.         tc[0] = tc0_table[index_a][bS[0]] << (bit_depth-8);

  114.         tc[1] = tc0_table[index_a][bS[1]] << (bit_depth-8);

  115.         tc[2] = tc0_table[index_a][bS[2]] << (bit_depth-8);

  116.         tc[3] = tc0_table[index_a][bS[3]] << (bit_depth-8);

  117.         h->h264dsp.h264_h_loop_filter_luma(pix, stride, alpha, beta, tc);

  118.     } else {

  119.         h->h264dsp.h264_h_loop_filter_luma_intra(pix, stride, alpha, beta);

  120.     }

  121. }

  122. static void av_always_inline filter_mb_edgecv( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {

  123.     const int bit_depth = h->sps.bit_depth_luma;

  124.     const int qp_bd_offset = 6*(bit_depth-8);

  125.     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  126.     const int alpha = alpha_table[index_a] << (bit_depth-8);

  127.     const int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  128.     if (alpha ==0 || beta == 0) return;

  129. 

  130.     if( bS[0] < 4 ) {

  131.         int8_t tc[4];

  132.         tc[0] = (tc0_table[index_a][bS[0]] << (bit_depth-8))+1;

  133.         tc[1] = (tc0_table[index_a][bS[1]] << (bit_depth-8))+1;

  134.         tc[2] = (tc0_table[index_a][bS[2]] << (bit_depth-8))+1;

  135.         tc[3] = (tc0_table[index_a][bS[3]] << (bit_depth-8))+1;

  136.         h->h264dsp.h264_h_loop_filter_chroma(pix, stride, alpha, beta, tc);

  137.     } else {

  138.         h->h264dsp.h264_h_loop_filter_chroma_intra(pix, stride, alpha, beta);

  139.     }

  140. }

  141. 

  142. static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {

  143.     int i;

  144.     const int bit_depth = h->sps.bit_depth_luma;

  145.     const int qp_bd_offset = 6*(bit_depth-8);

  146.     int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  147.     int alpha = alpha_table[index_a] << (bit_depth-8);

  148.     int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  149.     for( i = 0; i < 8; i++, pix += stride) {

  150.         const int bS_index = (i >> 1) * bsi;

  151. 

  152.         if( bS[bS_index] == 0 ) {

  153.             continue;

  154.         }

  155. 

  156.         if( bS[bS_index] < 4 ) {

  157.             const int tc0 = tc0_table[index_a][bS[bS_index]] << (bit_depth-8);

  158.             const int p0 = pix[-1];

  159.             const int p1 = pix[-2];

  160.             const int p2 = pix[-3];

  161.             const int q0 = pix[0];

  162.             const int q1 = pix[1];

  163.             const int q2 = pix[2];

  164. 

  165.             if( FFABS( p0 - q0 ) < alpha &&

  166.                 FFABS( p1 - p0 ) < beta &&

  167.                 FFABS( q1 - q0 ) < beta ) {

  168.                 int tc = tc0;

  169.                 int i_delta;

  170. 

  171.                 if( FFABS( p2 - p0 ) < beta ) {

  172.                     if(tc0)

  173.                     pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );

  174.                     tc++;

  175.                 }

  176.                 if( FFABS( q2 - q0 ) < beta ) {

  177.                     if(tc0)

  178.                     pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );

  179.                     tc++;

  180.                 }

  181. 

  182.                 i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );

  183.                 pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */

  184.                 pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */

  185.                 tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);

  186.             }

  187.         }else{

  188.             const int p0 = pix[-1];

  189.             const int p1 = pix[-2];

  190.             const int p2 = pix[-3];

  191. 

  192.             const int q0 = pix[0];

  193.             const int q1 = pix[1];

  194.             const int q2 = pix[2];

  195. 

  196.             if( FFABS( p0 - q0 ) < alpha &&

  197.                 FFABS( p1 - p0 ) < beta &&

  198.                 FFABS( q1 - q0 ) < beta ) {

  199. 

  200.                 if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){

  201.                     if( FFABS( p2 - p0 ) < beta)

  202.                     {

  203.                         const int p3 = pix[-4];

  204.                         /* p0', p1', p2' */

  205.                         pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;

  206.                         pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;

  207.                         pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;

  208.                     } else {

  209.                         /* p0' */

  210.                         pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;

  211.                     }

  212.                     if( FFABS( q2 - q0 ) < beta)

  213.                     {

  214.                         const int q3 = pix[3];

  215.                         /* q0', q1', q2' */

  216.                         pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;

  217.                         pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;

  218.                         pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;

  219.                     } else {

  220.                         /* q0' */

  221.                         pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;

  222.                     }

  223.                 }else{

  224.                     /* p0', q0' */

  225.                     pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;

  226.                     pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;

  227.                 }

  228.                 tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, p2, p1, p0, q0, q1, q2, pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);

  229.             }

  230.         }

  231.     }

  232. }

  233. static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {

  234.     int i;

  235.     const int bit_depth = h->sps.bit_depth_luma;

  236.     const int qp_bd_offset = 6*(bit_depth-8);

  237.     int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  238.     int alpha = alpha_table[index_a] << (bit_depth-8);

  239.     int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  240.     for( i = 0; i < 4; i++, pix += stride) {

  241.         const int bS_index = i*bsi;

  242. 

  243.         if( bS[bS_index] == 0 ) {

  244.             continue;

  245.         }

  246. 

  247.         if( bS[bS_index] < 4 ) {

  248.             const int tc = (tc0_table[index_a][bS[bS_index]] << (bit_depth-8)) + 1;

  249.             const int p0 = pix[-1];

  250.             const int p1 = pix[-2];

  251.             const int q0 = pix[0];

  252.             const int q1 = pix[1];

  253. 

  254.             if( FFABS( p0 - q0 ) < alpha &&

  255.                 FFABS( p1 - p0 ) < beta &&

  256.                 FFABS( q1 - q0 ) < beta ) {

  257.                 const int i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );

  258. 

  259.                 pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */

  260.                 pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */

  261.                 tprintf(h->s.avctx, "filter_mb_mbaff_edgecv i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);

  262.             }

  263.         }else{

  264.             const int p0 = pix[-1];

  265.             const int p1 = pix[-2];

  266.             const int q0 = pix[0];

  267.             const int q1 = pix[1];

  268. 

  269.             if( FFABS( p0 - q0 ) < alpha &&

  270.                 FFABS( p1 - p0 ) < beta &&

  271.                 FFABS( q1 - q0 ) < beta ) {

  272. 

  273.                 pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;   /* p0' */

  274.                 pix[0]  = ( 2*q1 + q0 + p1 + 2 ) >> 2;   /* q0' */

  275.                 tprintf(h->s.avctx, "filter_mb_mbaff_edgecv i:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\n", i, pix[-3], p1, p0, q0, q1, pix[2], pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);

  276.             }

  277.         }

  278.     }

  279. }

  280. 

  281. static void av_always_inline filter_mb_edgeh( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {

  282.     const int bit_depth = h->sps.bit_depth_luma;

  283.     const int qp_bd_offset = 6*(bit_depth-8);

  284.     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  285.     const int alpha = alpha_table[index_a] << (bit_depth-8);

  286.     const int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  287.     if (alpha ==0 || beta == 0) return;

  288. 

  289.     if( bS[0] < 4 ) {

  290.         int8_t tc[4];

  291.         tc[0] = tc0_table[index_a][bS[0]] << (bit_depth-8);

  292.         tc[1] = tc0_table[index_a][bS[1]] << (bit_depth-8);

  293.         tc[2] = tc0_table[index_a][bS[2]] << (bit_depth-8);

  294.         tc[3] = tc0_table[index_a][bS[3]] << (bit_depth-8);

  295.         h->h264dsp.h264_v_loop_filter_luma(pix, stride, alpha, beta, tc);

  296.     } else {

  297.         h->h264dsp.h264_v_loop_filter_luma_intra(pix, stride, alpha, beta);

  298.     }

  299. }

  300. 

  301. static void av_always_inline filter_mb_edgech( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {

  302.     const int bit_depth = h->sps.bit_depth_luma;

  303.     const int qp_bd_offset = 6*(bit_depth-8);

  304.     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;

  305.     const int alpha = alpha_table[index_a] << (bit_depth-8);

  306.     const int beta  = beta_table[qp - qp_bd_offset + h->slice_beta_offset] << (bit_depth-8);

  307.     if (alpha ==0 || beta == 0) return;

  308. 

  309.     if( bS[0] < 4 ) {

  310.         int8_t tc[4];

  311.         tc[0] = (tc0_table[index_a][bS[0]] << (bit_depth-8))+1;

  312.         tc[1] = (tc0_table[index_a][bS[1]] << (bit_depth-8))+1;

  313.         tc[2] = (tc0_table[index_a][bS[2]] << (bit_depth-8))+1;

  314.         tc[3] = (tc0_table[index_a][bS[3]] << (bit_depth-8))+1;

  315.         h->h264dsp.h264_v_loop_filter_chroma(pix, stride, alpha, beta, tc);

  316.     } else {

  317.         h->h264dsp.h264_v_loop_filter_chroma_intra(pix, stride, alpha, beta);

  318.     }

  319. }

  320. 

  321. void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {

  322.     MpegEncContext * const s = &h->s;

  323.     int mb_xy;

  324.     int mb_type, left_type;

  325.     int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;

  326. 

  327.     mb_xy = h->mb_xy;

  328. 

  329.     if(!h->top_type || !h->h264dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff) {

  330.         ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);

  331.         return;

  332.     }

  333.     assert(!FRAME_MBAFF);

  334.     left_type= h->left_type[0];

  335. 

  336.     mb_type = s->current_picture.mb_type[mb_xy];

  337.     qp = s->current_picture.qscale_table[mb_xy];

  338.     qp0 = s->current_picture.qscale_table[mb_xy-1];

  339.     qp1 = s->current_picture.qscale_table[h->top_mb_xy];

  340.     qpc = get_chroma_qp( h, 0, qp );

  341.     qpc0 = get_chroma_qp( h, 0, qp0 );

  342.     qpc1 = get_chroma_qp( h, 0, qp1 );

  343.     qp0 = (qp + qp0 + 1) >> 1;

  344.     qp1 = (qp + qp1 + 1) >> 1;

  345.     qpc0 = (qpc + qpc0 + 1) >> 1;

  346.     qpc1 = (qpc + qpc1 + 1) >> 1;

  347.     qp_thresh = 15+52 - h->slice_alpha_c0_offset;

  348.     if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&

  349.        qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)

  350.         return;

  351. 

  352.     if( IS_INTRA(mb_type) ) {

  353.         int16_t bS4[4] = {4,4,4,4};

  354.         int16_t bS3[4] = {3,3,3,3};

  355.         int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;

  356.         if(left_type)

  357.             filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);

  358.         if( IS_8x8DCT(mb_type) ) {

  359.             filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);

  360.             filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);

  361.             filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);

  362.         } else {

  363.             filter_mb_edgev( &img_y[4*1], linesize, bS3, qp, h);

  364.             filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);

  365.             filter_mb_edgev( &img_y[4*3], linesize, bS3, qp, h);

  366.             filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);

  367.             filter_mb_edgeh( &img_y[4*1*linesize], linesize, bS3, qp, h);

  368.             filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);

  369.             filter_mb_edgeh( &img_y[4*3*linesize], linesize, bS3, qp, h);

  370.         }

  371.         if(left_type){

  372.             filter_mb_edgecv( &img_cb[2*0], uvlinesize, bS4, qpc0, h);

  373.             filter_mb_edgecv( &img_cr[2*0], uvlinesize, bS4, qpc0, h);

  374.         }

  375.         filter_mb_edgecv( &img_cb[2*2], uvlinesize, bS3, qpc, h);

  376.         filter_mb_edgecv( &img_cr[2*2], uvlinesize, bS3, qpc, h);

  377.         filter_mb_edgech( &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);

  378.         filter_mb_edgech( &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc, h);

  379.         filter_mb_edgech( &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);

  380.         filter_mb_edgech( &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc, h);

  381.         return;

  382.     } else {

  383.         LOCAL_ALIGNED_8(int16_t, bS, [2], [4][4]);

  384.         int edges;

  385.         if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {

  386.             edges = 4;

  387.             AV_WN64A(bS[0][0], 0x0002000200020002ULL);

  388.             AV_WN64A(bS[0][2], 0x0002000200020002ULL);

  389.             AV_WN64A(bS[1][0], 0x0002000200020002ULL);

  390.             AV_WN64A(bS[1][2], 0x0002000200020002ULL);

  391.         } else {

  392.             int mask_edge1 = (3*(((5*mb_type)>>5)&1)) | (mb_type>>4); //(mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 : (mb_type & MB_TYPE_16x8) ? 1 : 0;

  393.             int mask_edge0 = 3*((mask_edge1>>1) & ((5*left_type)>>5)&1); // (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) && (h->left_type[0] & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 : 0;

  394.             int step =  1+(mb_type>>24); //IS_8x8DCT(mb_type) ? 2 : 1;

  395.             edges = 4 - 3*((mb_type>>3) & !(h->cbp & 15)); //(mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;

  396.             h->h264dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,

  397.                                               h->list_count==2, edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);

  398.         }

  399.         if( IS_INTRA(left_type) )

  400.             AV_WN64A(bS[0][0], 0x0004000400040004ULL);

  401.         if( IS_INTRA(h->top_type) )

  402.             AV_WN64A(bS[1][0], FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL);

  403. 

  404. #define FILTER(hv,dir,edge)\

  405.         if(AV_RN64A(bS[dir][edge])) {                                   \

  406.             filter_mb_edge##hv( &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir, h );\

  407.             if(!(edge&1)) {\

  408.                 filter_mb_edgec##hv( &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\

  409.                 filter_mb_edgec##hv( &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\

  410.             }\

  411.         }

  412.         if(left_type)

  413.             FILTER(v,0,0);

  414.         if( edges == 1 ) {

  415.             FILTER(h,1,0);

  416.         } else if( IS_8x8DCT(mb_type) ) {

  417.             FILTER(v,0,2);

  418.             FILTER(h,1,0);

  419.             FILTER(h,1,2);

  420.         } else {

  421.             FILTER(v,0,1);

  422.             FILTER(v,0,2);

  423.             FILTER(v,0,3);

  424.             FILTER(h,1,0);

  425.             FILTER(h,1,1);

  426.             FILTER(h,1,2);

  427.             FILTER(h,1,3);

  428.         }

  429. #undef FILTER

  430.     }

  431. }

  432. 

  433. static int check_mv(H264Context *h, long b_idx, long bn_idx, int mvy_limit){

  434.     int v;

  435. 

  436.     v= h->ref_cache[0][b_idx] != h->ref_cache[0][bn_idx];

  437.     if(!v && h->ref_cache[0][b_idx]!=-1)

  438.         v= h->mv_cache[0][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |

  439.            FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;

  440. 

  441.     if(h->list_count==2){

  442.         if(!v)

  443.             v = h->ref_cache[1][b_idx] != h->ref_cache[1][bn_idx] |

  444.                 h->mv_cache[1][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |

  445.                 FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit;

  446. 

  447.         if(v){

  448.             if(h->ref_cache[0][b_idx] != h->ref_cache[1][bn_idx] |

  449.                h->ref_cache[1][b_idx] != h->ref_cache[0][bn_idx])

  450.                 return 1;

  451.             return

  452.                 h->mv_cache[0][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |

  453.                 FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit |

  454.                 h->mv_cache[1][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |

  455.                 FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;

  456.         }

  457.     }

  458. 

  459.     return v;

  460. }

  461. 

  462. static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize, int mb_xy, int mb_type, int mvy_limit, int first_vertical_edge_done, int dir) {

  463.     MpegEncContext * const s = &h->s;

  464.     int edge;

  465.     const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;

  466.     const int mbm_type = dir == 0 ? h->left_type[0] : h->top_type;

  467. 

  468.     // how often to recheck mv-based bS when iterating between edges

  469.     static const uint8_t mask_edge_tab[2][8]={{0,3,3,3,1,1,1,1},

  470.                                               {0,3,1,1,3,3,3,3}};

  471.     const int mask_edge = mask_edge_tab[dir][(mb_type>>3)&7];

  472.     const int edges = mask_edge== 3 && !(h->cbp&15) ? 1 : 4;

  473. 

  474.     // how often to recheck mv-based bS when iterating along each edge

  475.     const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));

  476. 

  477.     if(mbm_type && !first_vertical_edge_done){

  478. 

  479.         if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0)

  480.             && IS_INTERLACED(mbm_type&~mb_type)

  481.             ) {

  482.             // This is a special case in the norm where the filtering must

  483.             // be done twice (one each of the field) even if we are in a

  484.             // frame macroblock.

  485.             //

  486.             unsigned int tmp_linesize   = 2 *   linesize;

  487.             unsigned int tmp_uvlinesize = 2 * uvlinesize;

  488.             int mbn_xy = mb_xy - 2 * s->mb_stride;

  489.             int j;

  490. 

  491.             for(j=0; j<2; j++, mbn_xy += s->mb_stride){

  492.                 DECLARE_ALIGNED(8, int16_t, bS)[4];

  493.                 int qp;

  494.                 if( IS_INTRA(mb_type|s->current_picture.mb_type[mbn_xy]) ) {

  495.                     AV_WN64A(bS, 0x0003000300030003ULL);

  496.                 } else {

  497.                     if(!CABAC && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])){

  498.                         bS[0]= 1+((h->cbp_table[mbn_xy] & 4)||h->non_zero_count_cache[scan8[0]+0]);

  499.                         bS[1]= 1+((h->cbp_table[mbn_xy] & 4)||h->non_zero_count_cache[scan8[0]+1]);

  500.                         bS[2]= 1+((h->cbp_table[mbn_xy] & 8)||h->non_zero_count_cache[scan8[0]+2]);

  501.                         bS[3]= 1+((h->cbp_table[mbn_xy] & 8)||h->non_zero_count_cache[scan8[0]+3]);

  502.                     }else{

  503.                     const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy] + 4+3*8;

  504.                     int i;

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

  506.                         bS[i] = 1 + !!(h->non_zero_count_cache[scan8[0]+i] | mbn_nnz[i]);

  507.                     }

  508.                     }

  509.                 }

  510.                 // Do not use s->qscale as luma quantizer because it has not the same

  511.                 // value in IPCM macroblocks.

  512.                 qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;

  513.                 tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, tmp_linesize, tmp_uvlinesize);

  514.                 { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }

  515.                 filter_mb_edgeh( &img_y[j*linesize], tmp_linesize, bS, qp, h );

  516.                 filter_mb_edgech( &img_cb[j*uvlinesize], tmp_uvlinesize, bS,

  517.                                 ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);

  518.                 filter_mb_edgech( &img_cr[j*uvlinesize], tmp_uvlinesize, bS,

  519.                                 ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);

  520.             }

  521.         }else{

  522.             DECLARE_ALIGNED(8, int16_t, bS)[4];

  523.             int qp;

  524. 

  525.             if( IS_INTRA(mb_type|mbm_type)) {

  526.                 AV_WN64A(bS, 0x0003000300030003ULL);

  527.                 if (   (!IS_INTERLACED(mb_type|mbm_type))

  528.                     || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))

  529.                 )

  530.                     AV_WN64A(bS, 0x0004000400040004ULL);

  531.             } else {

  532.                 int i;

  533.                 int mv_done;

  534. 

  535.                 if( dir && FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbm_type)) {

  536.                     AV_WN64A(bS, 0x0001000100010001ULL);

  537.                     mv_done = 1;

  538.                 }

  539.                 else if( mask_par0 && ((mbm_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {

  540.                     int b_idx= 8 + 4;

  541.                     int bn_idx= b_idx - (dir ? 8:1);

  542. 

  543.                     bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, 8 + 4, bn_idx, mvy_limit);

  544.                     mv_done = 1;

  545.                 }

  546.                 else

  547.                     mv_done = 0;

  548. 

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

  550.                     int x = dir == 0 ? 0 : i;

  551.                     int y = dir == 0 ? i    : 0;

  552.                     int b_idx= 8 + 4 + x + 8*y;

  553.                     int bn_idx= b_idx - (dir ? 8:1);

  554. 

  555.                     if( h->non_zero_count_cache[b_idx] |

  556.                         h->non_zero_count_cache[bn_idx] ) {

  557.                         bS[i] = 2;

  558.                     }

  559.                     else if(!mv_done)

  560.                     {

  561.                         bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);

  562.                     }

  563.                 }

  564.             }

  565. 

  566.             /* Filter edge */

  567.             // Do not use s->qscale as luma quantizer because it has not the same

  568.             // value in IPCM macroblocks.

  569.             if(bS[0]+bS[1]+bS[2]+bS[3]){

  570.                 qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbm_xy] + 1 ) >> 1;

  571.                 //tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp[0], s->current_picture.qscale_table[mbn_xy]);

  572.                 tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, linesize, uvlinesize);

  573.                 //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }

  574.                 if( dir == 0 ) {

  575.                     filter_mb_edgev( &img_y[0], linesize, bS, qp, h );

  576.                     {

  577.                         int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;

  578.                         filter_mb_edgecv( &img_cb[0], uvlinesize, bS, qp, h);

  579.                         if(h->pps.chroma_qp_diff)

  580.                             qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;

  581.                         filter_mb_edgecv( &img_cr[0], uvlinesize, bS, qp, h);

  582.                     }

  583.                 } else {

  584.                     filter_mb_edgeh( &img_y[0], linesize, bS, qp, h );

  585.                     {

  586.                         int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;

  587.                         filter_mb_edgech( &img_cb[0], uvlinesize, bS, qp, h);

  588.                         if(h->pps.chroma_qp_diff)

  589.                             qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;

  590.                         filter_mb_edgech( &img_cr[0], uvlinesize, bS, qp, h);

  591.                     }

  592.                 }

  593.             }

  594.         }

  595.     }

  596. 

  597.     /* Calculate bS */

  598.     for( edge = 1; edge < edges; edge++ ) {

  599.         DECLARE_ALIGNED(8, int16_t, bS)[4];

  600.         int qp;

  601. 

  602.         if( IS_8x8DCT(mb_type & (edge<<24)) ) // (edge&1) && IS_8x8DCT(mb_type)

  603.             continue;

  604. 

  605.         if( IS_INTRA(mb_type)) {

  606.             AV_WN64A(bS, 0x0003000300030003ULL);

  607.         } else {

  608.             int i;

  609.             int mv_done;

  610. 

  611.             if( edge & mask_edge ) {

  612.                 AV_ZERO64(bS);

  613.                 mv_done = 1;

  614.             }

  615.             else if( mask_par0 ) {

  616.                 int b_idx= 8 + 4 + edge * (dir ? 8:1);

  617.                 int bn_idx= b_idx - (dir ? 8:1);

  618. 

  619.                 bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, b_idx, bn_idx, mvy_limit);

  620.                 mv_done = 1;

  621.             }

  622.             else

  623.                 mv_done = 0;

  624. 

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

  626.                 int x = dir == 0 ? edge : i;

  627.                 int y = dir == 0 ? i    : edge;

  628.                 int b_idx= 8 + 4 + x + 8*y;

  629.                 int bn_idx= b_idx - (dir ? 8:1);

  630. 

  631.                 if( h->non_zero_count_cache[b_idx] |

  632.                     h->non_zero_count_cache[bn_idx] ) {

  633.                     bS[i] = 2;

  634.                 }

  635.                 else if(!mv_done)

  636.                 {

  637.                     bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);

  638.                 }

  639.             }

  640. 

  641.             if(bS[0]+bS[1]+bS[2]+bS[3] == 0)

  642.                 continue;

  643.         }

  644. 

  645.         /* Filter edge */

  646.         // Do not use s->qscale as luma quantizer because it has not the same

  647.         // value in IPCM macroblocks.

  648.         qp = s->current_picture.qscale_table[mb_xy];

  649.         //tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp[0], s->current_picture.qscale_table[mbn_xy]);

  650.         tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, linesize, uvlinesize);

  651.         //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }

  652.         if( dir == 0 ) {

  653.             filter_mb_edgev( &img_y[4*edge<<h->pixel_shift], linesize, bS, qp, h );

  654.             if( (edge&1) == 0 ) {

  655.                 filter_mb_edgecv( &img_cb[2*edge<<h->pixel_shift], uvlinesize, bS, h->chroma_qp[0], h);

  656.                 filter_mb_edgecv( &img_cr[2*edge<<h->pixel_shift], uvlinesize, bS, h->chroma_qp[1], h);

  657.             }

  658.         } else {

  659.             filter_mb_edgeh( &img_y[4*edge*linesize], linesize, bS, qp, h );

  660.             if( (edge&1) == 0 ) {

  661.                 filter_mb_edgech( &img_cb[2*edge*uvlinesize], uvlinesize, bS, h->chroma_qp[0], h);

  662.                 filter_mb_edgech( &img_cr[2*edge*uvlinesize], uvlinesize, bS, h->chroma_qp[1], h);

  663.             }

  664.         }

  665.     }

  666. }

  667. 

  668. void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {

  669.     MpegEncContext * const s = &h->s;

  670.     const int mb_xy= mb_x + mb_y*s->mb_stride;

  671.     const int mb_type = s->current_picture.mb_type[mb_xy];

  672.     const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;

  673.     int first_vertical_edge_done = 0;

  674.     av_unused int dir;

  675. 

  676.     if (FRAME_MBAFF

  677.             // and current and left pair do not have the same interlaced type

  678.             && IS_INTERLACED(mb_type^h->left_type[0])

  679.             // and left mb is in available to us

  680.             && h->left_type[0]) {

  681.         /* First vertical edge is different in MBAFF frames

  682.          * There are 8 different bS to compute and 2 different Qp

  683.          */

  684.         DECLARE_ALIGNED(8, int16_t, bS)[8];

  685.         int qp[2];

  686.         int bqp[2];

  687.         int rqp[2];

  688.         int mb_qp, mbn0_qp, mbn1_qp;

  689.         int i;

  690.         first_vertical_edge_done = 1;

  691. 

  692.         if( IS_INTRA(mb_type) ) {

  693.             AV_WN64A(&bS[0], 0x0004000400040004ULL);

  694.             AV_WN64A(&bS[4], 0x0004000400040004ULL);

  695.         } else {

  696.             static const uint8_t offset[2][2][8]={

  697.                 {

  698.                     {7+8*0, 7+8*0, 7+8*0, 7+8*0, 7+8*1, 7+8*1, 7+8*1, 7+8*1},

  699.                     {7+8*2, 7+8*2, 7+8*2, 7+8*2, 7+8*3, 7+8*3, 7+8*3, 7+8*3},

  700.                 },{

  701.                     {7+8*0, 7+8*1, 7+8*2, 7+8*3, 7+8*0, 7+8*1, 7+8*2, 7+8*3},

  702.                     {7+8*0, 7+8*1, 7+8*2, 7+8*3, 7+8*0, 7+8*1, 7+8*2, 7+8*3},

  703.                 }

  704.             };

  705.             const uint8_t *off= offset[MB_FIELD][mb_y&1];

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

  707.                 int j= MB_FIELD ? i>>2 : i&1;

  708.                 int mbn_xy = h->left_mb_xy[j];

  709.                 int mbn_type= h->left_type[j];

  710. 

  711.                 if( IS_INTRA( mbn_type ) )

  712.                     bS[i] = 4;

  713.                 else{

  714.                     bS[i] = 1 + !!(h->non_zero_count_cache[12+8*(i>>1)] |

  715.                          ((!h->pps.cabac && IS_8x8DCT(mbn_type)) ?

  716.                             (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))

  717.                                                                        :

  718.                             h->non_zero_count[mbn_xy][ off[i] ]));

  719.                 }

  720.             }

  721.         }

  722. 

  723.         mb_qp = s->current_picture.qscale_table[mb_xy];

  724.         mbn0_qp = s->current_picture.qscale_table[h->left_mb_xy[0]];

  725.         mbn1_qp = s->current_picture.qscale_table[h->left_mb_xy[1]];

  726.         qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;

  727.         bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +

  728.                    get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;

  729.         rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +

  730.                    get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;

  731.         qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;

  732.         bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +

  733.                    get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;

  734.         rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +

  735.                    get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;

  736. 

  737.         /* Filter edge */

  738.         tprintf(s->avctx, "filter mb:%d/%d MBAFF, QPy:%d/%d, QPb:%d/%d QPr:%d/%d ls:%d uvls:%d", mb_x, mb_y, qp[0], qp[1], bqp[0], bqp[1], rqp[0], rqp[1], linesize, uvlinesize);

  739.         { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }

  740.         if(MB_FIELD){

  741.             filter_mb_mbaff_edgev ( h, img_y                ,   linesize, bS  , 1, qp [0] );

  742.             filter_mb_mbaff_edgev ( h, img_y  + 8*  linesize,   linesize, bS+4, 1, qp [1] );

  743.             filter_mb_mbaff_edgecv( h, img_cb,                uvlinesize, bS  , 1, bqp[0] );

  744.             filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );

  745.             filter_mb_mbaff_edgecv( h, img_cr,                uvlinesize, bS  , 1, rqp[0] );

  746.             filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );

  747.         }else{

  748.             filter_mb_mbaff_edgev ( h, img_y              , 2*  linesize, bS  , 2, qp [0] );

  749.             filter_mb_mbaff_edgev ( h, img_y  +   linesize, 2*  linesize, bS+1, 2, qp [1] );

  750.             filter_mb_mbaff_edgecv( h, img_cb,              2*uvlinesize, bS  , 2, bqp[0] );

  751.             filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );

  752.             filter_mb_mbaff_edgecv( h, img_cr,              2*uvlinesize, bS  , 2, rqp[0] );

  753.             filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );

  754.         }

  755.     }

  756. 

  757. #if CONFIG_SMALL

  758.     for( dir = 0; dir < 2; dir++ )

  759.         filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, dir ? 0 : first_vertical_edge_done, dir);

  760. #else

  761.     filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, first_vertical_edge_done, 0);

  762.     filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);

  763. #endif

  764. }