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ffmpeg / libavcodec / h264_loopfilter.c @ 55c54371

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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

    
22
/**
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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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 */
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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"
35

    
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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102
static void av_noinline filter_mb_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
103
    const int index_a = qp + h->slice_alpha_c0_offset;
104
    const int alpha = (alpha_table+52)[index_a];
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    const int beta  = (beta_table+52)[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];
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        tc[0] = (tc0_table+52)[index_a][bS[0]];
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        tc[1] = (tc0_table+52)[index_a][bS[1]];
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        tc[2] = (tc0_table+52)[index_a][bS[2]];
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        tc[3] = (tc0_table+52)[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( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
120
    const int index_a = qp + h->slice_alpha_c0_offset;
121
    const int alpha = (alpha_table+52)[index_a];
122
    const int beta  = (beta_table+52)[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+52)[index_a][bS[0]]+1;
128
        tc[1] = (tc0_table+52)[index_a][bS[1]]+1;
129
        tc[2] = (tc0_table+52)[index_a][bS[2]]+1;
130
        tc[3] = (tc0_table+52)[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
    for( i = 0; i < 8; i++, pix += stride) {
140
        int index_a;
141
        int alpha;
142
        int beta;
143
        const int bS_index = (i >> 1) * bsi;
144

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

    
149
        index_a = qp + h->slice_alpha_c0_offset;
150
        alpha = (alpha_table+52)[index_a];
151
        beta  = (beta_table+52)[qp + h->slice_beta_offset];
152

    
153
        if( bS[bS_index] < 4 ) {
154
            const int tc0 = (tc0_table+52)[index_a][bS[bS_index]];
155
            const int p0 = pix[-1];
156
            const int p1 = pix[-2];
157
            const int p2 = pix[-3];
158
            const int q0 = pix[0];
159
            const int q1 = pix[1];
160
            const int q2 = pix[2];
161

    
162
            if( FFABS( p0 - q0 ) < alpha &&
163
                FFABS( p1 - p0 ) < beta &&
164
                FFABS( q1 - q0 ) < beta ) {
165
                int tc = tc0;
166
                int i_delta;
167

    
168
                if( FFABS( p2 - p0 ) < beta ) {
169
                    pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
170
                    tc++;
171
                }
172
                if( FFABS( q2 - q0 ) < beta ) {
173
                    pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
174
                    tc++;
175
                }
176

    
177
                i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
178
                pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
179
                pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
180
                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);
181
            }
182
        }else{
183
            const int p0 = pix[-1];
184
            const int p1 = pix[-2];
185
            const int p2 = pix[-3];
186

    
187
            const int q0 = pix[0];
188
            const int q1 = pix[1];
189
            const int q2 = pix[2];
190

    
191
            if( FFABS( p0 - q0 ) < alpha &&
192
                FFABS( p1 - p0 ) < beta &&
193
                FFABS( q1 - q0 ) < beta ) {
194

    
195
                if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
196
                    if( FFABS( p2 - p0 ) < beta)
197
                    {
198
                        const int p3 = pix[-4];
199
                        /* p0', p1', p2' */
200
                        pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
201
                        pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
202
                        pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
203
                    } else {
204
                        /* p0' */
205
                        pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
206
                    }
207
                    if( FFABS( q2 - q0 ) < beta)
208
                    {
209
                        const int q3 = pix[3];
210
                        /* q0', q1', q2' */
211
                        pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
212
                        pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
213
                        pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
214
                    } else {
215
                        /* q0' */
216
                        pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
217
                    }
218
                }else{
219
                    /* p0', q0' */
220
                    pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
221
                    pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
222
                }
223
                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]);
224
            }
225
        }
226
    }
227
}
228
static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
229
    int i;
230
    for( i = 0; i < 4; i++, pix += stride) {
231
        int index_a;
232
        int alpha;
233
        int beta;
234
        const int bS_index = i*bsi;
235

    
236
        if( bS[bS_index] == 0 ) {
237
            continue;
238
        }
239

    
240
        index_a = qp + h->slice_alpha_c0_offset;
241
        alpha = (alpha_table+52)[index_a];
242
        beta  = (beta_table+52)[qp + h->slice_beta_offset];
243

    
244
        if( bS[bS_index] < 4 ) {
245
            const int tc = (tc0_table+52)[index_a][bS[bS_index]] + 1;
246
            const int p0 = pix[-1];
247
            const int p1 = pix[-2];
248
            const int q0 = pix[0];
249
            const int q1 = pix[1];
250

    
251
            if( FFABS( p0 - q0 ) < alpha &&
252
                FFABS( p1 - p0 ) < beta &&
253
                FFABS( q1 - q0 ) < beta ) {
254
                const int i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
255

    
256
                pix[-1] = av_clip_uint8( p0 + i_delta );    /* p0' */
257
                pix[0]  = av_clip_uint8( q0 - i_delta );    /* q0' */
258
                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);
259
            }
260
        }else{
261
            const int p0 = pix[-1];
262
            const int p1 = pix[-2];
263
            const int q0 = pix[0];
264
            const int q1 = pix[1];
265

    
266
            if( FFABS( p0 - q0 ) < alpha &&
267
                FFABS( p1 - p0 ) < beta &&
268
                FFABS( q1 - q0 ) < beta ) {
269

    
270
                pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;   /* p0' */
271
                pix[0]  = ( 2*q1 + q0 + p1 + 2 ) >> 2;   /* q0' */
272
                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]);
273
            }
274
        }
275
    }
276
}
277

    
278
static void av_noinline filter_mb_edgeh( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
279
    const int index_a = qp + h->slice_alpha_c0_offset;
280
    const int alpha = (alpha_table+52)[index_a];
281
    const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
282
    if (alpha ==0 || beta == 0) return;
283

    
284
    if( bS[0] < 4 ) {
285
        int8_t tc[4];
286
        tc[0] = (tc0_table+52)[index_a][bS[0]];
287
        tc[1] = (tc0_table+52)[index_a][bS[1]];
288
        tc[2] = (tc0_table+52)[index_a][bS[2]];
289
        tc[3] = (tc0_table+52)[index_a][bS[3]];
290
        h->s.dsp.h264_v_loop_filter_luma(pix, stride, alpha, beta, tc);
291
    } else {
292
        h->s.dsp.h264_v_loop_filter_luma_intra(pix, stride, alpha, beta);
293
    }
294
}
295

    
296
static void av_noinline filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
297
    const int index_a = qp + h->slice_alpha_c0_offset;
298
    const int alpha = (alpha_table+52)[index_a];
299
    const int beta  = (beta_table+52)[qp + h->slice_beta_offset];
300
    if (alpha ==0 || beta == 0) return;
301

    
302
    if( bS[0] < 4 ) {
303
        int8_t tc[4];
304
        tc[0] = (tc0_table+52)[index_a][bS[0]]+1;
305
        tc[1] = (tc0_table+52)[index_a][bS[1]]+1;
306
        tc[2] = (tc0_table+52)[index_a][bS[2]]+1;
307
        tc[3] = (tc0_table+52)[index_a][bS[3]]+1;
308
        h->s.dsp.h264_v_loop_filter_chroma(pix, stride, alpha, beta, tc);
309
    } else {
310
        h->s.dsp.h264_v_loop_filter_chroma_intra(pix, stride, alpha, beta);
311
    }
312
}
313

    
314
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) {
315
    MpegEncContext * const s = &h->s;
316
    int mb_y_firstrow = s->picture_structure == PICT_BOTTOM_FIELD;
317
    int mb_xy, mb_type;
318
    int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
319

    
320
    mb_xy = h->mb_xy;
321

    
322
    if(mb_x==0 || mb_y==mb_y_firstrow || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
323
       (h->deblocking_filter == 2 && (h->slice_num != h->slice_table[h->top_mb_xy] ||
324
                                      h->slice_num != h->slice_table[mb_xy - 1]))) {
325
        ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);
326
        return;
327
    }
328
    assert(!FRAME_MBAFF);
329

    
330
    mb_type = s->current_picture.mb_type[mb_xy];
331
    qp = s->current_picture.qscale_table[mb_xy];
332
    qp0 = s->current_picture.qscale_table[mb_xy-1];
333
    qp1 = s->current_picture.qscale_table[h->top_mb_xy];
334
    qpc = get_chroma_qp( h, 0, qp );
335
    qpc0 = get_chroma_qp( h, 0, qp0 );
336
    qpc1 = get_chroma_qp( h, 0, qp1 );
337
    qp0 = (qp + qp0 + 1) >> 1;
338
    qp1 = (qp + qp1 + 1) >> 1;
339
    qpc0 = (qpc + qpc0 + 1) >> 1;
340
    qpc1 = (qpc + qpc1 + 1) >> 1;
341
    qp_thresh = 15 - h->slice_alpha_c0_offset;
342
    if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
343
       qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
344
        return;
345

    
346
    if( IS_INTRA(mb_type) ) {
347
        int16_t bS4[4] = {4,4,4,4};
348
        int16_t bS3[4] = {3,3,3,3};
349
        int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
350
        if( IS_8x8DCT(mb_type) ) {
351
            filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
352
            filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
353
            filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
354
            filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
355
        } else {
356
            filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
357
            filter_mb_edgev( h, &img_y[4*1], linesize, bS3, qp );
358
            filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
359
            filter_mb_edgev( h, &img_y[4*3], linesize, bS3, qp );
360
            filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
361
            filter_mb_edgeh( h, &img_y[4*1*linesize], linesize, bS3, qp );
362
            filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
363
            filter_mb_edgeh( h, &img_y[4*3*linesize], linesize, bS3, qp );
364
        }
365
        filter_mb_edgecv( h, &img_cb[2*0], uvlinesize, bS4, qpc0 );
366
        filter_mb_edgecv( h, &img_cb[2*2], uvlinesize, bS3, qpc );
367
        filter_mb_edgecv( h, &img_cr[2*0], uvlinesize, bS4, qpc0 );
368
        filter_mb_edgecv( h, &img_cr[2*2], uvlinesize, bS3, qpc );
369
        filter_mb_edgech( h, &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
370
        filter_mb_edgech( h, &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc );
371
        filter_mb_edgech( h, &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
372
        filter_mb_edgech( h, &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc );
373
        return;
374
    } else {
375
        DECLARE_ALIGNED_8(int16_t, bS[2][4][4]);
376
        uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
377
        int edges;
378
        if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
379
            edges = 4;
380
            bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
381
        } else {
382
            int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
383
                             (mb_type & MB_TYPE_16x8) ? 1 : 0;
384
            int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
385
                             && (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
386
                             ? 3 : 0;
387
            int step = IS_8x8DCT(mb_type) ? 2 : 1;
388
            edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
389
            s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
390
                                              (h->slice_type_nos == FF_B_TYPE), edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);
391
        }
392
        if( IS_INTRA(s->current_picture.mb_type[mb_xy-1]) )
393
            bSv[0][0] = 0x0004000400040004ULL;
394
        if( IS_INTRA(s->current_picture.mb_type[h->top_mb_xy]) )
395
            bSv[1][0] = FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL;
396

    
397
#define FILTER(hv,dir,edge)\
398
        if(bSv[dir][edge]) {\
399
            filter_mb_edge##hv( h, &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir );\
400
            if(!(edge&1)) {\
401
                filter_mb_edgec##hv( h, &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
402
                filter_mb_edgec##hv( h, &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
403
            }\
404
        }
405
        if( edges == 1 ) {
406
            FILTER(v,0,0);
407
            FILTER(h,1,0);
408
        } else if( IS_8x8DCT(mb_type) ) {
409
            FILTER(v,0,0);
410
            FILTER(v,0,2);
411
            FILTER(h,1,0);
412
            FILTER(h,1,2);
413
        } else {
414
            FILTER(v,0,0);
415
            FILTER(v,0,1);
416
            FILTER(v,0,2);
417
            FILTER(v,0,3);
418
            FILTER(h,1,0);
419
            FILTER(h,1,1);
420
            FILTER(h,1,2);
421
            FILTER(h,1,3);
422
        }
423
#undef FILTER
424
    }
425
}
426

    
427

    
428
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) {
429
    MpegEncContext * const s = &h->s;
430
    int edge;
431
    const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;
432
    const int mbm_type = s->current_picture.mb_type[mbm_xy];
433

    
434
    const int edges = (mb_type & (MB_TYPE_16x16|MB_TYPE_SKIP))
435
                              == (MB_TYPE_16x16|MB_TYPE_SKIP) ? 1 : 4;
436
    // how often to recheck mv-based bS when iterating between edges
437
    const int mask_edge = (mb_type & (MB_TYPE_16x16 | (MB_TYPE_16x8 << dir))) ? 3 :
438
                          (mb_type & (MB_TYPE_8x16 >> dir)) ? 1 : 0;
439
    // how often to recheck mv-based bS when iterating along each edge
440
    const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));
441
    int start =   h->slice_table[mbm_xy] == 0xFFFF
442
               || first_vertical_edge_done
443
               || (h->deblocking_filter==2 && h->slice_table[mbm_xy] != h->slice_num);
444

    
445

    
446
    if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0) && start == 0
447
        && !IS_INTERLACED(mb_type)
448
        && IS_INTERLACED(mbm_type)
449
        ) {
450
        // This is a special case in the norm where the filtering must
451
        // be done twice (one each of the field) even if we are in a
452
        // frame macroblock.
453
        //
454
        unsigned int tmp_linesize   = 2 *   linesize;
455
        unsigned int tmp_uvlinesize = 2 * uvlinesize;
456
        int mbn_xy = mb_xy - 2 * s->mb_stride;
457
        int qp;
458
        int i, j;
459
        int16_t bS[4];
460

    
461
        for(j=0; j<2; j++, mbn_xy += s->mb_stride){
462
            if( IS_INTRA(mb_type) ||
463
                IS_INTRA(s->current_picture.mb_type[mbn_xy]) ) {
464
                bS[0] = bS[1] = bS[2] = bS[3] = 3;
465
            } else {
466
                const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy];
467
                for( i = 0; i < 4; i++ ) {
468
                    if( h->non_zero_count_cache[scan8[0]+i] != 0 ||
469
                        mbn_nnz[i+4+3*8] != 0 )
470
                        bS[i] = 2;
471
                    else
472
                        bS[i] = 1;
473
                }
474
            }
475
            // Do not use s->qscale as luma quantizer because it has not the same
476
            // value in IPCM macroblocks.
477
            qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
478
            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);
479
            { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
480
            filter_mb_edgeh( h, &img_y[j*linesize], tmp_linesize, bS, qp );
481
            filter_mb_edgech( h, &img_cb[j*uvlinesize], tmp_uvlinesize, bS,
482
                              ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
483
            filter_mb_edgech( h, &img_cr[j*uvlinesize], tmp_uvlinesize, bS,
484
                              ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
485
        }
486

    
487
        start = 1;
488
    }
489

    
490
    /* Calculate bS */
491
    for( edge = start; edge < edges; edge++ ) {
492
        /* mbn_xy: neighbor macroblock */
493
        const int mbn_xy = edge > 0 ? mb_xy : mbm_xy;
494
        const int mbn_type = s->current_picture.mb_type[mbn_xy];
495
        int16_t bS[4];
496
        int qp;
497

    
498
        if( (edge&1) && IS_8x8DCT(mb_type) )
499
            continue;
500

    
501
        if( IS_INTRA(mb_type|mbn_type)) {
502
            *(uint64_t*)bS= 0x0003000300030003ULL;
503
            if (edge == 0) {
504
                if (   (!IS_INTERLACED(mb_type|mbm_type))
505
                    || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))
506
                )
507
                    *(uint64_t*)bS= 0x0004000400040004ULL;
508
            }
509
        } else {
510
            int i, l;
511
            int mv_done;
512

    
513
            if( edge & mask_edge ) {
514
                bS[0] = bS[1] = bS[2] = bS[3] = 0;
515
                mv_done = 1;
516
            }
517
            else if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbn_type)) {
518
                bS[0] = bS[1] = bS[2] = bS[3] = 1;
519
                mv_done = 1;
520
            }
521
            else if( mask_par0 && (edge || (mbn_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
522
                int b_idx= 8 + 4 + edge * (dir ? 8:1);
523
                int bn_idx= b_idx - (dir ? 8:1);
524
                int v = 0;
525

    
526
                for( l = 0; !v && l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {
527
                    v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
528
                         h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
529
                         FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
530
                }
531

    
532
                if(h->slice_type_nos == FF_B_TYPE && v){
533
                    v=0;
534
                    for( l = 0; !v && l < 2; l++ ) {
535
                        int ln= 1-l;
536
                        v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
537
                            h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
538
                            FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
539
                    }
540
                }
541

    
542
                bS[0] = bS[1] = bS[2] = bS[3] = v;
543
                mv_done = 1;
544
            }
545
            else
546
                mv_done = 0;
547

    
548
            for( i = 0; i < 4; i++ ) {
549
                int x = dir == 0 ? edge : i;
550
                int y = dir == 0 ? i    : edge;
551
                int b_idx= 8 + 4 + x + 8*y;
552
                int bn_idx= b_idx - (dir ? 8:1);
553

    
554
                if( h->non_zero_count_cache[b_idx] |
555
                    h->non_zero_count_cache[bn_idx] ) {
556
                    bS[i] = 2;
557
                }
558
                else if(!mv_done)
559
                {
560
                    bS[i] = 0;
561
                    for( l = 0; l < 1 + (h->slice_type_nos == FF_B_TYPE); l++ ) {
562
                        if( h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
563
                            h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
564
                            FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
565
                            bS[i] = 1;
566
                            break;
567
                        }
568
                    }
569

    
570
                    if(h->slice_type_nos == FF_B_TYPE && bS[i]){
571
                        bS[i] = 0;
572
                        for( l = 0; l < 2; l++ ) {
573
                            int ln= 1-l;
574
                            if( h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
575
                                h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
576
                                FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {
577
                                bS[i] = 1;
578
                                break;
579
                            }
580
                        }
581
                    }
582
                }
583
            }
584

    
585
            if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
586
                continue;
587
        }
588

    
589
        /* Filter edge */
590
        // Do not use s->qscale as luma quantizer because it has not the same
591
        // value in IPCM macroblocks.
592
        qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
593
        //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]);
594
        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);
595
        //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
596
        if( dir == 0 ) {
597
            filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
598
            if( (edge&1) == 0 ) {
599
                filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS,
600
                                  ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
601
                filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS,
602
                                  ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
603
            }
604
        } else {
605
            filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );
606
            if( (edge&1) == 0 ) {
607
                filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS,
608
                                  ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
609
                filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS,
610
                                  ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
611
            }
612
        }
613
    }
614
}
615

    
616
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) {
617
    MpegEncContext * const s = &h->s;
618
    const int mb_xy= mb_x + mb_y*s->mb_stride;
619
    const int mb_type = s->current_picture.mb_type[mb_xy];
620
    const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;
621
    int first_vertical_edge_done = 0;
622
    av_unused int dir;
623
    int list;
624

    
625
    if (FRAME_MBAFF
626
            // left mb is in picture
627
            && h->slice_table[mb_xy-1] != 0xFFFF
628
            // and current and left pair do not have the same interlaced type
629
            && (IS_INTERLACED(mb_type) != IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]))
630
            // and left mb is in the same slice if deblocking_filter == 2
631
            && (h->deblocking_filter!=2 || h->slice_table[mb_xy-1] == h->slice_num)) {
632
        /* First vertical edge is different in MBAFF frames
633
         * There are 8 different bS to compute and 2 different Qp
634
         */
635
        const int pair_xy = mb_x + (mb_y&~1)*s->mb_stride;
636
        const int left_mb_xy[2] = { pair_xy-1, pair_xy-1+s->mb_stride };
637
        int16_t bS[8];
638
        int qp[2];
639
        int bqp[2];
640
        int rqp[2];
641
        int mb_qp, mbn0_qp, mbn1_qp;
642
        int i;
643
        first_vertical_edge_done = 1;
644

    
645
        if( IS_INTRA(mb_type) )
646
            bS[0] = bS[1] = bS[2] = bS[3] = bS[4] = bS[5] = bS[6] = bS[7] = 4;
647
        else {
648
            for( i = 0; i < 8; i++ ) {
649
                int mbn_xy = MB_FIELD ? left_mb_xy[i>>2] : left_mb_xy[i&1];
650

    
651
                if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) )
652
                    bS[i] = 4;
653
                else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 ||
654
                         ((!h->pps.cabac && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])) ?
655
                            (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))
656
                                                                       :
657
                            h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8]))
658
                    bS[i] = 2;
659
                else
660
                    bS[i] = 1;
661
            }
662
        }
663

    
664
        mb_qp = s->current_picture.qscale_table[mb_xy];
665
        mbn0_qp = s->current_picture.qscale_table[left_mb_xy[0]];
666
        mbn1_qp = s->current_picture.qscale_table[left_mb_xy[1]];
667
        qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;
668
        bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +
669
                   get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;
670
        rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +
671
                   get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;
672
        qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;
673
        bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +
674
                   get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;
675
        rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +
676
                   get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;
677

    
678
        /* Filter edge */
679
        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);
680
        { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
681
        if(MB_FIELD){
682
            filter_mb_mbaff_edgev ( h, img_y                ,   linesize, bS  , 1, qp [0] );
683
            filter_mb_mbaff_edgev ( h, img_y  + 8*  linesize,   linesize, bS+4, 1, qp [1] );
684
            filter_mb_mbaff_edgecv( h, img_cb,                uvlinesize, bS  , 1, bqp[0] );
685
            filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );
686
            filter_mb_mbaff_edgecv( h, img_cr,                uvlinesize, bS  , 1, rqp[0] );
687
            filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );
688
        }else{
689
            filter_mb_mbaff_edgev ( h, img_y              , 2*  linesize, bS  , 2, qp [0] );
690
            filter_mb_mbaff_edgev ( h, img_y  +   linesize, 2*  linesize, bS+1, 2, qp [1] );
691
            filter_mb_mbaff_edgecv( h, img_cb,              2*uvlinesize, bS  , 2, bqp[0] );
692
            filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );
693
            filter_mb_mbaff_edgecv( h, img_cr,              2*uvlinesize, bS  , 2, rqp[0] );
694
            filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );
695
        }
696
    }
697

    
698
#if CONFIG_SMALL
699
    for( dir = 0; dir < 2; dir++ )
700
        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);
701
#else
702
    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);
703
    filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);
704
#endif
705
}