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ffmpeg / libavcodec / h264_loopfilter.c @ 50eb40a7

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/*
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 * H.26L/H.264/AVC/JVT/14496-10/... loop filter
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 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
21

    
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/**
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 * @file libavcodec/h264_loopfilter.c
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 * H.264 / AVC / MPEG4 part10 loop filter.
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 * @author Michael Niedermayer <michaelni@gmx.at>
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 */
27

    
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#include "internal.h"
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#include "dsputil.h"
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#include "avcodec.h"
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#include "mpegvideo.h"
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#include "h264.h"
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#include "mathops.h"
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#include "rectangle.h"
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36
//#undef NDEBUG
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#include <assert.h>
38

    
39
/* Deblocking filter (p153) */
40
static const uint8_t alpha_table[52*3] = {
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  4,  4,  5,  6,
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     7,  8,  9, 10, 12, 13, 15, 17, 20, 22,
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    25, 28, 32, 36, 40, 45, 50, 56, 63, 71,
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    80, 90,101,113,127,144,162,182,203,226,
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   255,255,
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   255,255,255,255,255,255,255,255,255,255,255,255,255,
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   255,255,255,255,255,255,255,255,255,255,255,255,255,
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   255,255,255,255,255,255,255,255,255,255,255,255,255,
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   255,255,255,255,255,255,255,255,255,255,255,255,255,
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};
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static const uint8_t beta_table[52*3] = {
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
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     0,  0,  0,  0,  0,  0,  2,  2,  2,  3,
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     3,  3,  3,  4,  4,  4,  6,  6,  7,  7,
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     8,  8,  9,  9, 10, 10, 11, 11, 12, 12,
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    13, 13, 14, 14, 15, 15, 16, 16, 17, 17,
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    18, 18,
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    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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    18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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};
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static const uint8_t tc0_table[52*3][4] = {
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
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    {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },
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    {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },
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    {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },
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    {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },
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    {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },
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    {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },
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    {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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    {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
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};
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static void av_noinline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h) {
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    const unsigned int index_a = qp + h->slice_alpha_c0_offset;
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    const int alpha = alpha_table[index_a];
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    const int beta  = beta_table[qp + h->slice_beta_offset];
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    if (alpha ==0 || beta == 0) return;
107

    
108
    if( bS[0] < 4 ) {
109
        int8_t tc[4];
110
        tc[0] = tc0_table[index_a][bS[0]];
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        tc[1] = tc0_table[index_a][bS[1]];
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        tc[2] = tc0_table[index_a][bS[2]];
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        tc[3] = tc0_table[index_a][bS[3]];
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        h->s.dsp.h264_h_loop_filter_luma(pix, stride, alpha, beta, tc);
115
    } else {
116
        h->s.dsp.h264_h_loop_filter_luma_intra(pix, stride, alpha, beta);
117
    }
118
}
119
static void av_noinline filter_mb_edgecv( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
120
    const unsigned int index_a = qp + h->slice_alpha_c0_offset;
121
    const int alpha = alpha_table[index_a];
122
    const int beta  = beta_table[qp + h->slice_beta_offset];
123
    if (alpha ==0 || beta == 0) return;
124

    
125
    if( bS[0] < 4 ) {
126
        int8_t tc[4];
127
        tc[0] = tc0_table[index_a][bS[0]]+1;
128
        tc[1] = tc0_table[index_a][bS[1]]+1;
129
        tc[2] = tc0_table[index_a][bS[2]]+1;
130
        tc[3] = tc0_table[index_a][bS[3]]+1;
131
        h->s.dsp.h264_h_loop_filter_chroma(pix, stride, alpha, beta, tc);
132
    } else {
133
        h->s.dsp.h264_h_loop_filter_chroma_intra(pix, stride, alpha, beta);
134
    }
135
}
136

    
137
static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
138
    int i;
139
    int index_a = qp + h->slice_alpha_c0_offset;
140
    int alpha = alpha_table[index_a];
141
    int beta  = beta_table[qp + h->slice_beta_offset];
142
    for( i = 0; i < 8; i++, pix += stride) {
143
        const int bS_index = (i >> 1) * bsi;
144

    
145
        if( bS[bS_index] == 0 ) {
146
            continue;
147
        }
148

    
149
        if( bS[bS_index] < 4 ) {
150
            const int tc0 = tc0_table[index_a][bS[bS_index]];
151
            const int p0 = pix[-1];
152
            const int p1 = pix[-2];
153
            const int p2 = pix[-3];
154
            const int q0 = pix[0];
155
            const int q1 = pix[1];
156
            const int q2 = pix[2];
157

    
158
            if( FFABS( p0 - q0 ) < alpha &&
159
                FFABS( p1 - p0 ) < beta &&
160
                FFABS( q1 - q0 ) < beta ) {
161
                int tc = tc0;
162
                int i_delta;
163

    
164
                if( FFABS( p2 - p0 ) < beta ) {
165
                    if(tc0)
166
                    pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
167
                    tc++;
168
                }
169
                if( FFABS( q2 - q0 ) < beta ) {
170
                    if(tc0)
171
                    pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
172
                    tc++;
173
                }
174

    
175
                i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
176
                pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
177
                pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
178
                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);
179
            }
180
        }else{
181
            const int p0 = pix[-1];
182
            const int p1 = pix[-2];
183
            const int p2 = pix[-3];
184

    
185
            const int q0 = pix[0];
186
            const int q1 = pix[1];
187
            const int q2 = pix[2];
188

    
189
            if( FFABS( p0 - q0 ) < alpha &&
190
                FFABS( p1 - p0 ) < beta &&
191
                FFABS( q1 - q0 ) < beta ) {
192

    
193
                if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
194
                    if( FFABS( p2 - p0 ) < beta)
195
                    {
196
                        const int p3 = pix[-4];
197
                        /* p0', p1', p2' */
198
                        pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
199
                        pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
200
                        pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
201
                    } else {
202
                        /* p0' */
203
                        pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
204
                    }
205
                    if( FFABS( q2 - q0 ) < beta)
206
                    {
207
                        const int q3 = pix[3];
208
                        /* q0', q1', q2' */
209
                        pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
210
                        pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
211
                        pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
212
                    } else {
213
                        /* q0' */
214
                        pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
215
                    }
216
                }else{
217
                    /* p0', q0' */
218
                    pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
219
                    pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
220
                }
221
                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]);
222
            }
223
        }
224
    }
225
}
226
static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
227
    int i;
228
    int index_a = qp + h->slice_alpha_c0_offset;
229
    int alpha = alpha_table[index_a];
230
    int beta  = beta_table[qp + h->slice_beta_offset];
231
    for( i = 0; i < 4; i++, pix += stride) {
232
        const int bS_index = i*bsi;
233

    
234
        if( bS[bS_index] == 0 ) {
235
            continue;
236
        }
237

    
238
        if( bS[bS_index] < 4 ) {
239
            const int tc = tc0_table[index_a][bS[bS_index]] + 1;
240
            const int p0 = pix[-1];
241
            const int p1 = pix[-2];
242
            const int q0 = pix[0];
243
            const int q1 = pix[1];
244

    
245
            if( FFABS( p0 - q0 ) < alpha &&
246
                FFABS( p1 - p0 ) < beta &&
247
                FFABS( q1 - q0 ) < beta ) {
248
                const int i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
249

    
250
                pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
251
                pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
252
                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);
253
            }
254
        }else{
255
            const int p0 = pix[-1];
256
            const int p1 = pix[-2];
257
            const int q0 = pix[0];
258
            const int q1 = pix[1];
259

    
260
            if( FFABS( p0 - q0 ) < alpha &&
261
                FFABS( p1 - p0 ) < beta &&
262
                FFABS( q1 - q0 ) < beta ) {
263

    
264
                pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;   /* p0' */
265
                pix[0]  = ( 2*q1 + q0 + p1 + 2 ) >> 2;   /* q0' */
266
                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]);
267
            }
268
        }
269
    }
270
}
271

    
272
static void av_noinline filter_mb_edgeh( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
273
    const unsigned int index_a = qp + h->slice_alpha_c0_offset;
274
    const int alpha = alpha_table[index_a];
275
    const int beta  = beta_table[qp + h->slice_beta_offset];
276
    if (alpha ==0 || beta == 0) return;
277

    
278
    if( bS[0] < 4 ) {
279
        int8_t tc[4];
280
        tc[0] = tc0_table[index_a][bS[0]];
281
        tc[1] = tc0_table[index_a][bS[1]];
282
        tc[2] = tc0_table[index_a][bS[2]];
283
        tc[3] = tc0_table[index_a][bS[3]];
284
        h->s.dsp.h264_v_loop_filter_luma(pix, stride, alpha, beta, tc);
285
    } else {
286
        h->s.dsp.h264_v_loop_filter_luma_intra(pix, stride, alpha, beta);
287
    }
288
}
289

    
290
static void av_noinline filter_mb_edgech( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
291
    const unsigned int index_a = qp + h->slice_alpha_c0_offset;
292
    const int alpha = alpha_table[index_a];
293
    const int beta  = beta_table[qp + h->slice_beta_offset];
294
    if (alpha ==0 || beta == 0) return;
295

    
296
    if( bS[0] < 4 ) {
297
        int8_t tc[4];
298
        tc[0] = tc0_table[index_a][bS[0]]+1;
299
        tc[1] = tc0_table[index_a][bS[1]]+1;
300
        tc[2] = tc0_table[index_a][bS[2]]+1;
301
        tc[3] = tc0_table[index_a][bS[3]]+1;
302
        h->s.dsp.h264_v_loop_filter_chroma(pix, stride, alpha, beta, tc);
303
    } else {
304
        h->s.dsp.h264_v_loop_filter_chroma_intra(pix, stride, alpha, beta);
305
    }
306
}
307

    
308
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) {
309
    MpegEncContext * const s = &h->s;
310
    int mb_y_firstrow = s->picture_structure == PICT_BOTTOM_FIELD;
311
    int mb_xy, mb_type;
312
    int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
313

    
314
    mb_xy = h->mb_xy;
315

    
316
    if(mb_x==0 || mb_y==mb_y_firstrow || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
317
       (h->deblocking_filter == 2 && (h->slice_num != h->slice_table[h->top_mb_xy] ||
318
                                      h->slice_num != h->slice_table[mb_xy - 1]))) {
319
        ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);
320
        return;
321
    }
322
    assert(!FRAME_MBAFF);
323

    
324
    mb_type = s->current_picture.mb_type[mb_xy];
325
    qp = s->current_picture.qscale_table[mb_xy];
326
    qp0 = s->current_picture.qscale_table[mb_xy-1];
327
    qp1 = s->current_picture.qscale_table[h->top_mb_xy];
328
    qpc = get_chroma_qp( h, 0, qp );
329
    qpc0 = get_chroma_qp( h, 0, qp0 );
330
    qpc1 = get_chroma_qp( h, 0, qp1 );
331
    qp0 = (qp + qp0 + 1) >> 1;
332
    qp1 = (qp + qp1 + 1) >> 1;
333
    qpc0 = (qpc + qpc0 + 1) >> 1;
334
    qpc1 = (qpc + qpc1 + 1) >> 1;
335
    qp_thresh = 15+52 - h->slice_alpha_c0_offset;
336
    if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
337
       qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
338
        return;
339

    
340
    if( IS_INTRA(mb_type) ) {
341
        int16_t bS4[4] = {4,4,4,4};
342
        int16_t bS3[4] = {3,3,3,3};
343
        int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
344
        if( IS_8x8DCT(mb_type) ) {
345
            filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);
346
            filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);
347
            filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);
348
            filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);
349
        } else {
350
            filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);
351
            filter_mb_edgev( &img_y[4*1], linesize, bS3, qp, h);
352
            filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);
353
            filter_mb_edgev( &img_y[4*3], linesize, bS3, qp, h);
354
            filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);
355
            filter_mb_edgeh( &img_y[4*1*linesize], linesize, bS3, qp, h);
356
            filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);
357
            filter_mb_edgeh( &img_y[4*3*linesize], linesize, bS3, qp, h);
358
        }
359
        filter_mb_edgecv( &img_cb[2*0], uvlinesize, bS4, qpc0, h);
360
        filter_mb_edgecv( &img_cb[2*2], uvlinesize, bS3, qpc, h);
361
        filter_mb_edgecv( &img_cr[2*0], uvlinesize, bS4, qpc0, h);
362
        filter_mb_edgecv( &img_cr[2*2], uvlinesize, bS3, qpc, h);
363
        filter_mb_edgech( &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);
364
        filter_mb_edgech( &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc, h);
365
        filter_mb_edgech( &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);
366
        filter_mb_edgech( &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc, h);
367
        return;
368
    } else {
369
        DECLARE_ALIGNED_8(int16_t, bS)[2][4][4];
370
        uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
371
        int edges;
372
        if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
373
            edges = 4;
374
            bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
375
        } else {
376
            int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
377
                             (mb_type & MB_TYPE_16x8) ? 1 : 0;
378
            int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
379
                             && (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
380
                             ? 3 : 0;
381
            int step = IS_8x8DCT(mb_type) ? 2 : 1;
382
            edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
383
            s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
384
                                              h->list_count==2, edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);
385
        }
386
        if( IS_INTRA(s->current_picture.mb_type[mb_xy-1]) )
387
            bSv[0][0] = 0x0004000400040004ULL;
388
        if( IS_INTRA(s->current_picture.mb_type[h->top_mb_xy]) )
389
            bSv[1][0] = FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL;
390

    
391
#define FILTER(hv,dir,edge)\
392
        if(bSv[dir][edge]) {\
393
            filter_mb_edge##hv( &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir, h );\
394
            if(!(edge&1)) {\
395
                filter_mb_edgec##hv( &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\
396
                filter_mb_edgec##hv( &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\
397
            }\
398
        }
399
        if( edges == 1 ) {
400
            FILTER(v,0,0);
401
            FILTER(h,1,0);
402
        } else if( IS_8x8DCT(mb_type) ) {
403
            FILTER(v,0,0);
404
            FILTER(v,0,2);
405
            FILTER(h,1,0);
406
            FILTER(h,1,2);
407
        } else {
408
            FILTER(v,0,0);
409
            FILTER(v,0,1);
410
            FILTER(v,0,2);
411
            FILTER(v,0,3);
412
            FILTER(h,1,0);
413
            FILTER(h,1,1);
414
            FILTER(h,1,2);
415
            FILTER(h,1,3);
416
        }
417
#undef FILTER
418
    }
419
}
420

    
421

    
422
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) {
423
    MpegEncContext * const s = &h->s;
424
    int edge;
425
    const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;
426
    const int mbm_type = s->current_picture.mb_type[mbm_xy];
427

    
428
    // how often to recheck mv-based bS when iterating between edges
429
    static const uint8_t mask_edge_tab[2][8]={{0,3,3,3,1,1,1,1},
430
                                              {0,3,1,1,3,3,3,3}};
431
    const int mask_edge = mask_edge_tab[dir][(mb_type>>3)&7];
432
    const int edges = mask_edge== 3 && !(h->cbp&15) ? 1 : 4;
433

    
434
    // how often to recheck mv-based bS when iterating along each edge
435
    const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));
436
    int start =   h->slice_table[mbm_xy] == 0xFFFF
437
               || first_vertical_edge_done
438
               || (h->deblocking_filter==2 && h->slice_table[mbm_xy] != h->slice_num);
439

    
440

    
441
    if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0) && start == 0
442
        && IS_INTERLACED(mbm_type&~mb_type)
443
        ) {
444
        // This is a special case in the norm where the filtering must
445
        // be done twice (one each of the field) even if we are in a
446
        // frame macroblock.
447
        //
448
        unsigned int tmp_linesize   = 2 *   linesize;
449
        unsigned int tmp_uvlinesize = 2 * uvlinesize;
450
        int mbn_xy = mb_xy - 2 * s->mb_stride;
451
        int j;
452

    
453
        for(j=0; j<2; j++, mbn_xy += s->mb_stride){
454
            DECLARE_ALIGNED_8(int16_t, bS)[4];
455
            int qp;
456
            if( IS_INTRA(mb_type|s->current_picture.mb_type[mbn_xy]) ) {
457
                *(uint64_t*)bS= 0x0003000300030003ULL;
458
            } else {
459
                const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy] + 4+3*8;
460
                int i;
461
                for( i = 0; i < 4; i++ ) {
462
                    bS[i] = 1 + !!(h->non_zero_count_cache[scan8[0]+i] | mbn_nnz[i]);
463
                }
464
            }
465
            // Do not use s->qscale as luma quantizer because it has not the same
466
            // value in IPCM macroblocks.
467
            qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
468
            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);
469
            { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
470
            filter_mb_edgeh( &img_y[j*linesize], tmp_linesize, bS, qp, h );
471
            filter_mb_edgech( &img_cb[j*uvlinesize], tmp_uvlinesize, bS,
472
                              ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);
473
            filter_mb_edgech( &img_cr[j*uvlinesize], tmp_uvlinesize, bS,
474
                              ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);
475
        }
476

    
477
        start = 1;
478
    }
479

    
480
    /* Calculate bS */
481
    for( edge = start; edge < edges; edge++ ) {
482
        /* mbn_xy: neighbor macroblock */
483
        const int mbn_xy = edge > 0 ? mb_xy : mbm_xy;
484
        const int mbn_type = s->current_picture.mb_type[mbn_xy];
485
        DECLARE_ALIGNED_8(int16_t, bS)[4];
486
        int qp;
487

    
488
        if( IS_8x8DCT(mb_type & (edge<<24)) ) // (edge&1) && IS_8x8DCT(mb_type)
489
            continue;
490

    
491
        if( IS_INTRA(mb_type|mbn_type)) {
492
            *(uint64_t*)bS= 0x0003000300030003ULL;
493
            if (edge == 0) {
494
                if (   (!IS_INTERLACED(mb_type|mbm_type))
495
                    || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))
496
                )
497
                    *(uint64_t*)bS= 0x0004000400040004ULL;
498
            }
499
        } else {
500
            int i, l;
501
            int mv_done;
502

    
503
            if( edge & mask_edge ) {
504
                *(uint64_t*)bS= 0;
505
                mv_done = 1;
506
            }
507
            else if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbn_type)) {
508
                *(uint64_t*)bS= 0x0001000100010001ULL;
509
                mv_done = 1;
510
            }
511
            else if( mask_par0 && (edge || (mbn_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
512
                int b_idx= 8 + 4 + edge * (dir ? 8:1);
513
                int bn_idx= b_idx - (dir ? 8:1);
514
                int v = 0;
515

    
516
                for( l = 0; !v && l < h->list_count; l++ ) {
517
                    v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
518
                         h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
519
                         FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
520
                }
521

    
522
                if(h->list_count==2 && v){
523
                    v=0;
524
                    for( l = 0; !v && l < 2; l++ ) {
525
                        int ln= 1-l;
526
                        v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
527
                            h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
528
                            FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
529
                    }
530
                }
531

    
532
                bS[0] = bS[1] = bS[2] = bS[3] = v;
533
                mv_done = 1;
534
            }
535
            else
536
                mv_done = 0;
537

    
538
            for( i = 0; i < 4; i++ ) {
539
                int x = dir == 0 ? edge : i;
540
                int y = dir == 0 ? i    : edge;
541
                int b_idx= 8 + 4 + x + 8*y;
542
                int bn_idx= b_idx - (dir ? 8:1);
543

    
544
                if( h->non_zero_count_cache[b_idx] |
545
                    h->non_zero_count_cache[bn_idx] ) {
546
                    bS[i] = 2;
547
                }
548
                else if(!mv_done)
549
                {
550
                    bS[i] = 0;
551
                    for( l = 0; l < h->list_count; l++ ) {
552
                        if( h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
553
                            h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
554
                            FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
555
                            bS[i] = 1;
556
                            break;
557
                        }
558
                    }
559

    
560
                    if(h->list_count == 2 && bS[i]){
561
                        bS[i] = 0;
562
                        for( l = 0; l < 2; l++ ) {
563
                            int ln= 1-l;
564
                            if( h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
565
                                h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
566
                                FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {
567
                                bS[i] = 1;
568
                                break;
569
                            }
570
                        }
571
                    }
572
                }
573
            }
574

    
575
            if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
576
                continue;
577
        }
578

    
579
        /* Filter edge */
580
        // Do not use s->qscale as luma quantizer because it has not the same
581
        // value in IPCM macroblocks.
582
        qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
583
        //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]);
584
        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);
585
        //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
586
        if( dir == 0 ) {
587
            filter_mb_edgev( &img_y[4*edge], linesize, bS, qp, h );
588
            if( (edge&1) == 0 ) {
589
                int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
590
                filter_mb_edgecv( &img_cb[2*edge], uvlinesize, bS, qp, h);
591
                if(h->pps.chroma_qp_diff)
592
                    qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
593
                filter_mb_edgecv( &img_cr[2*edge], uvlinesize, bS, qp, h);
594
            }
595
        } else {
596
            filter_mb_edgeh( &img_y[4*edge*linesize], linesize, bS, qp, h );
597
            if( (edge&1) == 0 ) {
598
                int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
599
                filter_mb_edgech( &img_cb[2*edge*uvlinesize], uvlinesize, bS, qp, h);
600
                if(h->pps.chroma_qp_diff)
601
                    qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
602
                filter_mb_edgech( &img_cr[2*edge*uvlinesize], uvlinesize, bS, qp, h);
603
            }
604
        }
605
    }
606
}
607

    
608
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) {
609
    MpegEncContext * const s = &h->s;
610
    const int mb_xy= mb_x + mb_y*s->mb_stride;
611
    const int mb_type = s->current_picture.mb_type[mb_xy];
612
    const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;
613
    int first_vertical_edge_done = 0;
614
    av_unused int dir;
615
    int list;
616

    
617
    if (FRAME_MBAFF
618
            // left mb is in picture
619
            && h->slice_table[mb_xy-1] != 0xFFFF
620
            // and current and left pair do not have the same interlaced type
621
            && IS_INTERLACED(mb_type^s->current_picture.mb_type[mb_xy-1])
622
            // and left mb is in the same slice if deblocking_filter == 2
623
            && (h->deblocking_filter!=2 || h->slice_table[mb_xy-1] == h->slice_num)) {
624
        /* First vertical edge is different in MBAFF frames
625
         * There are 8 different bS to compute and 2 different Qp
626
         */
627
        const int pair_xy = mb_x + (mb_y&~1)*s->mb_stride;
628
        const int left_mb_xy[2] = { pair_xy-1, pair_xy-1+s->mb_stride };
629
        DECLARE_ALIGNED_8(int16_t, bS)[8];
630
        int qp[2];
631
        int bqp[2];
632
        int rqp[2];
633
        int mb_qp, mbn0_qp, mbn1_qp;
634
        int i;
635
        first_vertical_edge_done = 1;
636

    
637
        if( IS_INTRA(mb_type) )
638
            *(uint64_t*)&bS[0]=
639
            *(uint64_t*)&bS[4]= 0x0004000400040004ULL;
640
        else {
641
            for( i = 0; i < 8; i++ ) {
642
                int mbn_xy = MB_FIELD ? left_mb_xy[i>>2] : left_mb_xy[i&1];
643

    
644
                if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) )
645
                    bS[i] = 4;
646
                else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 ||
647
                         ((!h->pps.cabac && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])) ?
648
                            (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))
649
                                                                       :
650
                            h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8]))
651
                    bS[i] = 2;
652
                else
653
                    bS[i] = 1;
654
            }
655
        }
656

    
657
        mb_qp = s->current_picture.qscale_table[mb_xy];
658
        mbn0_qp = s->current_picture.qscale_table[left_mb_xy[0]];
659
        mbn1_qp = s->current_picture.qscale_table[left_mb_xy[1]];
660
        qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;
661
        bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +
662
                   get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;
663
        rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +
664
                   get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;
665
        qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;
666
        bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +
667
                   get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;
668
        rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +
669
                   get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;
670

    
671
        /* Filter edge */
672
        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);
673
        { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
674
        if(MB_FIELD){
675
            filter_mb_mbaff_edgev ( h, img_y                ,   linesize, bS  , 1, qp [0] );
676
            filter_mb_mbaff_edgev ( h, img_y  + 8*  linesize,   linesize, bS+4, 1, qp [1] );
677
            filter_mb_mbaff_edgecv( h, img_cb,                uvlinesize, bS  , 1, bqp[0] );
678
            filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );
679
            filter_mb_mbaff_edgecv( h, img_cr,                uvlinesize, bS  , 1, rqp[0] );
680
            filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );
681
        }else{
682
            filter_mb_mbaff_edgev ( h, img_y              , 2*  linesize, bS  , 2, qp [0] );
683
            filter_mb_mbaff_edgev ( h, img_y  +   linesize, 2*  linesize, bS+1, 2, qp [1] );
684
            filter_mb_mbaff_edgecv( h, img_cb,              2*uvlinesize, bS  , 2, bqp[0] );
685
            filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );
686
            filter_mb_mbaff_edgecv( h, img_cr,              2*uvlinesize, bS  , 2, rqp[0] );
687
            filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );
688
        }
689
    }
690

    
691
#if CONFIG_SMALL
692
    for( dir = 0; dir < 2; dir++ )
693
        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);
694
#else
695
    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);
696
    filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);
697
#endif
698
}