| 
							- /*
 -  * H.26L/H.264/AVC/JVT/14496-10/... loop filter
 -  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
 -  *
 -  * This file is part of FFmpeg.
 -  *
 -  * FFmpeg is free software; you can redistribute it and/or
 -  * modify it under the terms of the GNU Lesser General Public
 -  * License as published by the Free Software Foundation; either
 -  * version 2.1 of the License, or (at your option) any later version.
 -  *
 -  * FFmpeg is distributed in the hope that it will be useful,
 -  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 -  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 -  * Lesser General Public License for more details.
 -  *
 -  * You should have received a copy of the GNU Lesser General Public
 -  * License along with FFmpeg; if not, write to the Free Software
 -  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 -  */
 - 
 - /**
 -  * @file libavcodec/h264_loopfilter.c
 -  * H.264 / AVC / MPEG4 part10 loop filter.
 -  * @author Michael Niedermayer <michaelni@gmx.at>
 -  */
 - 
 - #include "internal.h"
 - #include "dsputil.h"
 - #include "avcodec.h"
 - #include "mpegvideo.h"
 - #include "h264.h"
 - #include "mathops.h"
 - #include "rectangle.h"
 - 
 - //#undef NDEBUG
 - #include <assert.h>
 - 
 - /* Deblocking filter (p153) */
 - static const uint8_t alpha_table[52*3] = {
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  4,  4,  5,  6,
 -      7,  8,  9, 10, 12, 13, 15, 17, 20, 22,
 -     25, 28, 32, 36, 40, 45, 50, 56, 63, 71,
 -     80, 90,101,113,127,144,162,182,203,226,
 -    255,255,
 -    255,255,255,255,255,255,255,255,255,255,255,255,255,
 -    255,255,255,255,255,255,255,255,255,255,255,255,255,
 -    255,255,255,255,255,255,255,255,255,255,255,255,255,
 -    255,255,255,255,255,255,255,255,255,255,255,255,255,
 - };
 - static const uint8_t beta_table[52*3] = {
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 -      0,  0,  0,  0,  0,  0,  2,  2,  2,  3,
 -      3,  3,  3,  4,  4,  4,  6,  6,  7,  7,
 -      8,  8,  9,  9, 10, 10, 11, 11, 12, 12,
 -     13, 13, 14, 14, 15, 15, 16, 16, 17, 17,
 -     18, 18,
 -     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
 -     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
 -     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
 -     18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
 - };
 - static const uint8_t tc0_table[52*3][4] = {
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
 -     {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },
 -     {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },
 -     {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },
 -     {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },
 -     {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },
 -     {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },
 -     {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 -     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 - };
 - 
 - static void av_noinline filter_mb_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
 -     const int index_a = qp + h->slice_alpha_c0_offset;
 -     const int alpha = (alpha_table+52)[index_a];
 -     const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
 -     if (alpha ==0 || beta == 0) return;
 - 
 -     if( bS[0] < 4 ) {
 -         int8_t tc[4];
 -         tc[0] = (tc0_table+52)[index_a][bS[0]];
 -         tc[1] = (tc0_table+52)[index_a][bS[1]];
 -         tc[2] = (tc0_table+52)[index_a][bS[2]];
 -         tc[3] = (tc0_table+52)[index_a][bS[3]];
 -         h->s.dsp.h264_h_loop_filter_luma(pix, stride, alpha, beta, tc);
 -     } else {
 -         h->s.dsp.h264_h_loop_filter_luma_intra(pix, stride, alpha, beta);
 -     }
 - }
 - static void av_noinline filter_mb_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
 -     const int index_a = qp + h->slice_alpha_c0_offset;
 -     const int alpha = (alpha_table+52)[index_a];
 -     const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
 -     if (alpha ==0 || beta == 0) return;
 - 
 -     if( bS[0] < 4 ) {
 -         int8_t tc[4];
 -         tc[0] = (tc0_table+52)[index_a][bS[0]]+1;
 -         tc[1] = (tc0_table+52)[index_a][bS[1]]+1;
 -         tc[2] = (tc0_table+52)[index_a][bS[2]]+1;
 -         tc[3] = (tc0_table+52)[index_a][bS[3]]+1;
 -         h->s.dsp.h264_h_loop_filter_chroma(pix, stride, alpha, beta, tc);
 -     } else {
 -         h->s.dsp.h264_h_loop_filter_chroma_intra(pix, stride, alpha, beta);
 -     }
 - }
 - 
 - static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
 -     int i;
 -     for( i = 0; i < 8; i++, pix += stride) {
 -         int index_a;
 -         int alpha;
 -         int beta;
 -         const int bS_index = (i >> 1) * bsi;
 - 
 -         if( bS[bS_index] == 0 ) {
 -             continue;
 -         }
 - 
 -         index_a = qp + h->slice_alpha_c0_offset;
 -         alpha = (alpha_table+52)[index_a];
 -         beta  = (beta_table+52)[qp + h->slice_beta_offset];
 - 
 -         if( bS[bS_index] < 4 ) {
 -             const int tc0 = (tc0_table+52)[index_a][bS[bS_index]];
 -             const int p0 = pix[-1];
 -             const int p1 = pix[-2];
 -             const int p2 = pix[-3];
 -             const int q0 = pix[0];
 -             const int q1 = pix[1];
 -             const int q2 = pix[2];
 - 
 -             if( FFABS( p0 - q0 ) < alpha &&
 -                 FFABS( p1 - p0 ) < beta &&
 -                 FFABS( q1 - q0 ) < beta ) {
 -                 int tc = tc0;
 -                 int i_delta;
 - 
 -                 if( FFABS( p2 - p0 ) < beta ) {
 -                     pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
 -                     tc++;
 -                 }
 -                 if( FFABS( q2 - q0 ) < beta ) {
 -                     pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
 -                     tc++;
 -                 }
 - 
 -                 i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
 -                 pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
 -                 pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
 -                 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);
 -             }
 -         }else{
 -             const int p0 = pix[-1];
 -             const int p1 = pix[-2];
 -             const int p2 = pix[-3];
 - 
 -             const int q0 = pix[0];
 -             const int q1 = pix[1];
 -             const int q2 = pix[2];
 - 
 -             if( FFABS( p0 - q0 ) < alpha &&
 -                 FFABS( p1 - p0 ) < beta &&
 -                 FFABS( q1 - q0 ) < beta ) {
 - 
 -                 if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
 -                     if( FFABS( p2 - p0 ) < beta)
 -                     {
 -                         const int p3 = pix[-4];
 -                         /* p0', p1', p2' */
 -                         pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
 -                         pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
 -                         pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
 -                     } else {
 -                         /* p0' */
 -                         pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
 -                     }
 -                     if( FFABS( q2 - q0 ) < beta)
 -                     {
 -                         const int q3 = pix[3];
 -                         /* q0', q1', q2' */
 -                         pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
 -                         pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
 -                         pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
 -                     } else {
 -                         /* q0' */
 -                         pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
 -                     }
 -                 }else{
 -                     /* p0', q0' */
 -                     pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
 -                     pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
 -                 }
 -                 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]);
 -             }
 -         }
 -     }
 - }
 - static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
 -     int i;
 -     for( i = 0; i < 4; i++, pix += stride) {
 -         int index_a;
 -         int alpha;
 -         int beta;
 -         const int bS_index = i*bsi;
 - 
 -         if( bS[bS_index] == 0 ) {
 -             continue;
 -         }
 - 
 -         index_a = qp + h->slice_alpha_c0_offset;
 -         alpha = (alpha_table+52)[index_a];
 -         beta  = (beta_table+52)[qp + h->slice_beta_offset];
 - 
 -         if( bS[bS_index] < 4 ) {
 -             const int tc = (tc0_table+52)[index_a][bS[bS_index]] + 1;
 -             const int p0 = pix[-1];
 -             const int p1 = pix[-2];
 -             const int q0 = pix[0];
 -             const int q1 = pix[1];
 - 
 -             if( FFABS( p0 - q0 ) < alpha &&
 -                 FFABS( p1 - p0 ) < beta &&
 -                 FFABS( q1 - q0 ) < beta ) {
 -                 const int i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
 - 
 -                 pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
 -                 pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
 -                 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);
 -             }
 -         }else{
 -             const int p0 = pix[-1];
 -             const int p1 = pix[-2];
 -             const int q0 = pix[0];
 -             const int q1 = pix[1];
 - 
 -             if( FFABS( p0 - q0 ) < alpha &&
 -                 FFABS( p1 - p0 ) < beta &&
 -                 FFABS( q1 - q0 ) < beta ) {
 - 
 -                 pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;   /* p0' */
 -                 pix[0]  = ( 2*q1 + q0 + p1 + 2 ) >> 2;   /* q0' */
 -                 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]);
 -             }
 -         }
 -     }
 - }
 - 
 - static void av_noinline filter_mb_edgeh( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
 -     const int index_a = qp + h->slice_alpha_c0_offset;
 -     const int alpha = (alpha_table+52)[index_a];
 -     const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
 -     if (alpha ==0 || beta == 0) return;
 - 
 -     if( bS[0] < 4 ) {
 -         int8_t tc[4];
 -         tc[0] = (tc0_table+52)[index_a][bS[0]];
 -         tc[1] = (tc0_table+52)[index_a][bS[1]];
 -         tc[2] = (tc0_table+52)[index_a][bS[2]];
 -         tc[3] = (tc0_table+52)[index_a][bS[3]];
 -         h->s.dsp.h264_v_loop_filter_luma(pix, stride, alpha, beta, tc);
 -     } else {
 -         h->s.dsp.h264_v_loop_filter_luma_intra(pix, stride, alpha, beta);
 -     }
 - }
 - 
 - static void av_noinline filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
 -     const int index_a = qp + h->slice_alpha_c0_offset;
 -     const int alpha = (alpha_table+52)[index_a];
 -     const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
 -     if (alpha ==0 || beta == 0) return;
 - 
 -     if( bS[0] < 4 ) {
 -         int8_t tc[4];
 -         tc[0] = (tc0_table+52)[index_a][bS[0]]+1;
 -         tc[1] = (tc0_table+52)[index_a][bS[1]]+1;
 -         tc[2] = (tc0_table+52)[index_a][bS[2]]+1;
 -         tc[3] = (tc0_table+52)[index_a][bS[3]]+1;
 -         h->s.dsp.h264_v_loop_filter_chroma(pix, stride, alpha, beta, tc);
 -     } else {
 -         h->s.dsp.h264_v_loop_filter_chroma_intra(pix, stride, alpha, beta);
 -     }
 - }
 - 
 - 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) {
 -     MpegEncContext * const s = &h->s;
 -     int mb_y_firstrow = s->picture_structure == PICT_BOTTOM_FIELD;
 -     int mb_xy, mb_type;
 -     int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
 - 
 -     mb_xy = h->mb_xy;
 - 
 -     if(mb_x==0 || mb_y==mb_y_firstrow || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
 -        (h->deblocking_filter == 2 && (h->slice_num != h->slice_table[h->top_mb_xy] ||
 -                                       h->slice_num != h->slice_table[mb_xy - 1]))) {
 -         ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);
 -         return;
 -     }
 -     assert(!FRAME_MBAFF);
 - 
 -     mb_type = s->current_picture.mb_type[mb_xy];
 -     qp = s->current_picture.qscale_table[mb_xy];
 -     qp0 = s->current_picture.qscale_table[mb_xy-1];
 -     qp1 = s->current_picture.qscale_table[h->top_mb_xy];
 -     qpc = get_chroma_qp( h, 0, qp );
 -     qpc0 = get_chroma_qp( h, 0, qp0 );
 -     qpc1 = get_chroma_qp( h, 0, qp1 );
 -     qp0 = (qp + qp0 + 1) >> 1;
 -     qp1 = (qp + qp1 + 1) >> 1;
 -     qpc0 = (qpc + qpc0 + 1) >> 1;
 -     qpc1 = (qpc + qpc1 + 1) >> 1;
 -     qp_thresh = 15 - h->slice_alpha_c0_offset;
 -     if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
 -        qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
 -         return;
 - 
 -     if( IS_INTRA(mb_type) ) {
 -         int16_t bS4[4] = {4,4,4,4};
 -         int16_t bS3[4] = {3,3,3,3};
 -         int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
 -         if( IS_8x8DCT(mb_type) ) {
 -             filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
 -             filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
 -             filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
 -             filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
 -         } else {
 -             filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
 -             filter_mb_edgev( h, &img_y[4*1], linesize, bS3, qp );
 -             filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
 -             filter_mb_edgev( h, &img_y[4*3], linesize, bS3, qp );
 -             filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
 -             filter_mb_edgeh( h, &img_y[4*1*linesize], linesize, bS3, qp );
 -             filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
 -             filter_mb_edgeh( h, &img_y[4*3*linesize], linesize, bS3, qp );
 -         }
 -         filter_mb_edgecv( h, &img_cb[2*0], uvlinesize, bS4, qpc0 );
 -         filter_mb_edgecv( h, &img_cb[2*2], uvlinesize, bS3, qpc );
 -         filter_mb_edgecv( h, &img_cr[2*0], uvlinesize, bS4, qpc0 );
 -         filter_mb_edgecv( h, &img_cr[2*2], uvlinesize, bS3, qpc );
 -         filter_mb_edgech( h, &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
 -         filter_mb_edgech( h, &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc );
 -         filter_mb_edgech( h, &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
 -         filter_mb_edgech( h, &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc );
 -         return;
 -     } else {
 -         DECLARE_ALIGNED_8(int16_t, bS[2][4][4]);
 -         uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
 -         int edges;
 -         if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
 -             edges = 4;
 -             bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
 -         } else {
 -             int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
 -                              (mb_type & MB_TYPE_16x8) ? 1 : 0;
 -             int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
 -                              && (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
 -                              ? 3 : 0;
 -             int step = IS_8x8DCT(mb_type) ? 2 : 1;
 -             edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
 -             s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
 -                                               (h->slice_type_nos == FF_B_TYPE), edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);
 -         }
 -         if( IS_INTRA(s->current_picture.mb_type[mb_xy-1]) )
 -             bSv[0][0] = 0x0004000400040004ULL;
 -         if( IS_INTRA(s->current_picture.mb_type[h->top_mb_xy]) )
 -             bSv[1][0] = FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL;
 - 
 - #define FILTER(hv,dir,edge)\
 -         if(bSv[dir][edge]) {\
 -             filter_mb_edge##hv( h, &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir );\
 -             if(!(edge&1)) {\
 -                 filter_mb_edgec##hv( h, &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
 -                 filter_mb_edgec##hv( h, &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
 -             }\
 -         }
 -         if( edges == 1 ) {
 -             FILTER(v,0,0);
 -             FILTER(h,1,0);
 -         } else if( IS_8x8DCT(mb_type) ) {
 -             FILTER(v,0,0);
 -             FILTER(v,0,2);
 -             FILTER(h,1,0);
 -             FILTER(h,1,2);
 -         } else {
 -             FILTER(v,0,0);
 -             FILTER(v,0,1);
 -             FILTER(v,0,2);
 -             FILTER(v,0,3);
 -             FILTER(h,1,0);
 -             FILTER(h,1,1);
 -             FILTER(h,1,2);
 -             FILTER(h,1,3);
 -         }
 - #undef FILTER
 -     }
 - }
 - 
 - 
 - 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) {
 -     MpegEncContext * const s = &h->s;
 -     int edge;
 -     const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;
 -     const int mbm_type = s->current_picture.mb_type[mbm_xy];
 - 
 -     const int edges = (mb_type & (MB_TYPE_16x16|MB_TYPE_SKIP))
 -                               == (MB_TYPE_16x16|MB_TYPE_SKIP) ? 1 : 4;
 -     // how often to recheck mv-based bS when iterating between edges
 -     static const uint8_t mask_edge_tab[2][8]={{0,3,3,3,1,1,1,1},
 -                                               {0,3,1,1,3,3,3,3}};
 -     const int mask_edge = mask_edge_tab[dir][(mb_type>>3)&7];
 -     // how often to recheck mv-based bS when iterating along each edge
 -     const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));
 -     int start =   h->slice_table[mbm_xy] == 0xFFFF
 -                || first_vertical_edge_done
 -                || (h->deblocking_filter==2 && h->slice_table[mbm_xy] != h->slice_num);
 - 
 - 
 -     if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0) && start == 0
 -         && IS_INTERLACED(mbm_type&~mb_type)
 -         ) {
 -         // This is a special case in the norm where the filtering must
 -         // be done twice (one each of the field) even if we are in a
 -         // frame macroblock.
 -         //
 -         unsigned int tmp_linesize   = 2 *   linesize;
 -         unsigned int tmp_uvlinesize = 2 * uvlinesize;
 -         int mbn_xy = mb_xy - 2 * s->mb_stride;
 -         int j;
 - 
 -         for(j=0; j<2; j++, mbn_xy += s->mb_stride){
 -             DECLARE_ALIGNED_8(int16_t, bS[4]);
 -             int qp;
 -             if( IS_INTRA(mb_type|s->current_picture.mb_type[mbn_xy]) ) {
 -                 *(uint64_t*)bS= 0x0003000300030003ULL;
 -             } else {
 -                 const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy] + 4+3*8;
 -                 int i;
 -                 for( i = 0; i < 4; i++ ) {
 -                     bS[i] = 1 + !!(h->non_zero_count_cache[scan8[0]+i] | mbn_nnz[i]);
 -                 }
 -             }
 -             // Do not use s->qscale as luma quantizer because it has not the same
 -             // value in IPCM macroblocks.
 -             qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
 -             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);
 -             { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
 -             filter_mb_edgeh( h, &img_y[j*linesize], tmp_linesize, bS, qp );
 -             filter_mb_edgech( h, &img_cb[j*uvlinesize], tmp_uvlinesize, bS,
 -                               ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
 -             filter_mb_edgech( h, &img_cr[j*uvlinesize], tmp_uvlinesize, bS,
 -                               ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
 -         }
 - 
 -         start = 1;
 -     }
 - 
 -     /* Calculate bS */
 -     for( edge = start; edge < edges; edge++ ) {
 -         /* mbn_xy: neighbor macroblock */
 -         const int mbn_xy = edge > 0 ? mb_xy : mbm_xy;
 -         const int mbn_type = s->current_picture.mb_type[mbn_xy];
 -         DECLARE_ALIGNED_8(int16_t, bS[4]);
 -         int qp;
 - 
 -         if( (edge&1) && IS_8x8DCT(mb_type) )
 -             continue;
 - 
 -         if( IS_INTRA(mb_type|mbn_type)) {
 -             *(uint64_t*)bS= 0x0003000300030003ULL;
 -             if (edge == 0) {
 -                 if (   (!IS_INTERLACED(mb_type|mbm_type))
 -                     || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))
 -                 )
 -                     *(uint64_t*)bS= 0x0004000400040004ULL;
 -             }
 -         } else {
 -             int i, l;
 -             int mv_done;
 - 
 -             if( edge & mask_edge ) {
 -                 *(uint64_t*)bS= 0;
 -                 mv_done = 1;
 -             }
 -             else if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbn_type)) {
 -                 *(uint64_t*)bS= 0x0001000100010001ULL;
 -                 mv_done = 1;
 -             }
 -             else if( mask_par0 && (edge || (mbn_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
 -                 int b_idx= 8 + 4 + edge * (dir ? 8:1);
 -                 int bn_idx= b_idx - (dir ? 8:1);
 -                 int v = 0;
 - 
 -                 for( l = 0; !v && l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {
 -                     v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
 -                          h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
 -                          FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
 -                 }
 - 
 -                 if(h->slice_type_nos == FF_B_TYPE && v){
 -                     v=0;
 -                     for( l = 0; !v && l < 2; l++ ) {
 -                         int ln= 1-l;
 -                         v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
 -                             h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
 -                             FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
 -                     }
 -                 }
 - 
 -                 bS[0] = bS[1] = bS[2] = bS[3] = v;
 -                 mv_done = 1;
 -             }
 -             else
 -                 mv_done = 0;
 - 
 -             for( i = 0; i < 4; i++ ) {
 -                 int x = dir == 0 ? edge : i;
 -                 int y = dir == 0 ? i    : edge;
 -                 int b_idx= 8 + 4 + x + 8*y;
 -                 int bn_idx= b_idx - (dir ? 8:1);
 - 
 -                 if( h->non_zero_count_cache[b_idx] |
 -                     h->non_zero_count_cache[bn_idx] ) {
 -                     bS[i] = 2;
 -                 }
 -                 else if(!mv_done)
 -                 {
 -                     bS[i] = 0;
 -                     for( l = 0; l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {
 -                         if( h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
 -                             h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
 -                             FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
 -                             bS[i] = 1;
 -                             break;
 -                         }
 -                     }
 - 
 -                     if(h->slice_type_nos == FF_B_TYPE && bS[i]){
 -                         bS[i] = 0;
 -                         for( l = 0; l < 2; l++ ) {
 -                             int ln= 1-l;
 -                             if( h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
 -                                 h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
 -                                 FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {
 -                                 bS[i] = 1;
 -                                 break;
 -                             }
 -                         }
 -                     }
 -                 }
 -             }
 - 
 -             if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
 -                 continue;
 -         }
 - 
 -         /* Filter edge */
 -         // Do not use s->qscale as luma quantizer because it has not the same
 -         // value in IPCM macroblocks.
 -         qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
 -         //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]);
 -         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);
 -         //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
 -         if( dir == 0 ) {
 -             filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
 -             if( (edge&1) == 0 ) {
 -                 int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
 -                 filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS, qp);
 -                 if(h->pps.chroma_qp_diff)
 -                     qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
 -                 filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS, qp);
 -             }
 -         } else {
 -             filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );
 -             if( (edge&1) == 0 ) {
 -                 int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
 -                 filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS, qp);
 -                 if(h->pps.chroma_qp_diff)
 -                     qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
 -                 filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS, qp);
 -             }
 -         }
 -     }
 - }
 - 
 - 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) {
 -     MpegEncContext * const s = &h->s;
 -     const int mb_xy= mb_x + mb_y*s->mb_stride;
 -     const int mb_type = s->current_picture.mb_type[mb_xy];
 -     const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;
 -     int first_vertical_edge_done = 0;
 -     av_unused int dir;
 -     int list;
 - 
 -     if (FRAME_MBAFF
 -             // left mb is in picture
 -             && h->slice_table[mb_xy-1] != 0xFFFF
 -             // and current and left pair do not have the same interlaced type
 -             && IS_INTERLACED(mb_type^s->current_picture.mb_type[mb_xy-1])
 -             // and left mb is in the same slice if deblocking_filter == 2
 -             && (h->deblocking_filter!=2 || h->slice_table[mb_xy-1] == h->slice_num)) {
 -         /* First vertical edge is different in MBAFF frames
 -          * There are 8 different bS to compute and 2 different Qp
 -          */
 -         const int pair_xy = mb_x + (mb_y&~1)*s->mb_stride;
 -         const int left_mb_xy[2] = { pair_xy-1, pair_xy-1+s->mb_stride };
 -         DECLARE_ALIGNED_8(int16_t, bS[8]);
 -         int qp[2];
 -         int bqp[2];
 -         int rqp[2];
 -         int mb_qp, mbn0_qp, mbn1_qp;
 -         int i;
 -         first_vertical_edge_done = 1;
 - 
 -         if( IS_INTRA(mb_type) )
 -             *(uint64_t*)&bS[0]=
 -             *(uint64_t*)&bS[4]= 0x0004000400040004ULL;
 -         else {
 -             for( i = 0; i < 8; i++ ) {
 -                 int mbn_xy = MB_FIELD ? left_mb_xy[i>>2] : left_mb_xy[i&1];
 - 
 -                 if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) )
 -                     bS[i] = 4;
 -                 else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 ||
 -                          ((!h->pps.cabac && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])) ?
 -                             (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))
 -                                                                        :
 -                             h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8]))
 -                     bS[i] = 2;
 -                 else
 -                     bS[i] = 1;
 -             }
 -         }
 - 
 -         mb_qp = s->current_picture.qscale_table[mb_xy];
 -         mbn0_qp = s->current_picture.qscale_table[left_mb_xy[0]];
 -         mbn1_qp = s->current_picture.qscale_table[left_mb_xy[1]];
 -         qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;
 -         bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +
 -                    get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;
 -         rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +
 -                    get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;
 -         qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;
 -         bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +
 -                    get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;
 -         rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +
 -                    get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;
 - 
 -         /* Filter edge */
 -         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);
 -         { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
 -         if(MB_FIELD){
 -             filter_mb_mbaff_edgev ( h, img_y                ,   linesize, bS  , 1, qp [0] );
 -             filter_mb_mbaff_edgev ( h, img_y  + 8*  linesize,   linesize, bS+4, 1, qp [1] );
 -             filter_mb_mbaff_edgecv( h, img_cb,                uvlinesize, bS  , 1, bqp[0] );
 -             filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );
 -             filter_mb_mbaff_edgecv( h, img_cr,                uvlinesize, bS  , 1, rqp[0] );
 -             filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );
 -         }else{
 -             filter_mb_mbaff_edgev ( h, img_y              , 2*  linesize, bS  , 2, qp [0] );
 -             filter_mb_mbaff_edgev ( h, img_y  +   linesize, 2*  linesize, bS+1, 2, qp [1] );
 -             filter_mb_mbaff_edgecv( h, img_cb,              2*uvlinesize, bS  , 2, bqp[0] );
 -             filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );
 -             filter_mb_mbaff_edgecv( h, img_cr,              2*uvlinesize, bS  , 2, rqp[0] );
 -             filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );
 -         }
 -     }
 - 
 - #if CONFIG_SMALL
 -     for( dir = 0; dir < 2; dir++ )
 -         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);
 - #else
 -     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);
 -     filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);
 - #endif
 - }
 
 
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