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ffmpeg / libavcodec / h264_loopfilter.c @ 2cf0d46d

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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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 */
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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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102
static void av_noinline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h) {
103
    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];
106
    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_xy;
311
    int mb_type, left_type;
312
    int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
313

    
314
    mb_xy = h->mb_xy;
315

    
316
    if(!h->top_type || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff) {
317
        ff_h264_filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);
318
        return;
319
    }
320
    assert(!FRAME_MBAFF);
321
    left_type= h->left_type[0];
322

    
323
    mb_type = s->current_picture.mb_type[mb_xy];
324
    qp = s->current_picture.qscale_table[mb_xy];
325
    qp0 = s->current_picture.qscale_table[mb_xy-1];
326
    qp1 = s->current_picture.qscale_table[h->top_mb_xy];
327
    qpc = get_chroma_qp( h, 0, qp );
328
    qpc0 = get_chroma_qp( h, 0, qp0 );
329
    qpc1 = get_chroma_qp( h, 0, qp1 );
330
    qp0 = (qp + qp0 + 1) >> 1;
331
    qp1 = (qp + qp1 + 1) >> 1;
332
    qpc0 = (qpc + qpc0 + 1) >> 1;
333
    qpc1 = (qpc + qpc1 + 1) >> 1;
334
    qp_thresh = 15+52 - h->slice_alpha_c0_offset;
335
    if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
336
       qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
337
        return;
338

    
339
    if( IS_INTRA(mb_type) ) {
340
        int16_t bS4[4] = {4,4,4,4};
341
        int16_t bS3[4] = {3,3,3,3};
342
        int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
343
        if( IS_8x8DCT(mb_type) ) {
344
            if(left_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
            if(left_type)
351
                filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);
352
            filter_mb_edgev( &img_y[4*1], linesize, bS3, qp, h);
353
            filter_mb_edgev( &img_y[4*2], linesize, bS3, qp, h);
354
            filter_mb_edgev( &img_y[4*3], linesize, bS3, qp, h);
355
            filter_mb_edgeh( &img_y[4*0*linesize], linesize, bSH, qp1, h);
356
            filter_mb_edgeh( &img_y[4*1*linesize], linesize, bS3, qp, h);
357
            filter_mb_edgeh( &img_y[4*2*linesize], linesize, bS3, qp, h);
358
            filter_mb_edgeh( &img_y[4*3*linesize], linesize, bS3, qp, h);
359
        }
360
        if(left_type){
361
            filter_mb_edgecv( &img_cb[2*0], uvlinesize, bS4, qpc0, h);
362
            filter_mb_edgecv( &img_cr[2*0], uvlinesize, bS4, qpc0, h);
363
        }
364
        filter_mb_edgecv( &img_cb[2*2], uvlinesize, bS3, qpc, h);
365
        filter_mb_edgecv( &img_cr[2*2], uvlinesize, bS3, qpc, h);
366
        filter_mb_edgech( &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);
367
        filter_mb_edgech( &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc, h);
368
        filter_mb_edgech( &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1, h);
369
        filter_mb_edgech( &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc, h);
370
        return;
371
    } else {
372
        DECLARE_ALIGNED_8(int16_t, bS)[2][4][4];
373
        uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
374
        int edges;
375
        if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
376
            edges = 4;
377
            bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
378
        } else {
379
            int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
380
                             (mb_type & MB_TYPE_16x8) ? 1 : 0;
381
            int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
382
                             && (h->left_type[0] & (MB_TYPE_16x16 | MB_TYPE_8x16))
383
                             ? 3 : 0;
384
            int step = IS_8x8DCT(mb_type) ? 2 : 1;
385
            edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
386
            s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
387
                                              h->list_count==2, edges, step, mask_edge0, mask_edge1, FIELD_PICTURE);
388
        }
389
        if( IS_INTRA(h->left_type[0]) )
390
            bSv[0][0] = 0x0004000400040004ULL;
391
        if( IS_INTRA(h->top_type) )
392
            bSv[1][0] = FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL;
393

    
394
#define FILTER(hv,dir,edge)\
395
        if(bSv[dir][edge]) {\
396
            filter_mb_edge##hv( &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir, h );\
397
            if(!(edge&1)) {\
398
                filter_mb_edgec##hv( &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\
399
                filter_mb_edgec##hv( &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir, h );\
400
            }\
401
        }
402
        if( edges == 1 ) {
403
            if(left_type)
404
                FILTER(v,0,0);
405
            FILTER(h,1,0);
406
        } else if( IS_8x8DCT(mb_type) ) {
407
            if(left_type)
408
                FILTER(v,0,0);
409
            FILTER(v,0,2);
410
            FILTER(h,1,0);
411
            FILTER(h,1,2);
412
        } else {
413
            if(left_type)
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
static int check_mv(H264Context *h, long b_idx, long bn_idx, int mvy_limit){
428
    int v;
429

    
430
    v = h->ref_cache[0][b_idx] != h->ref_cache[0][bn_idx] |
431
        h->mv_cache[0][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |
432
        FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;
433

    
434
    if(h->list_count==2){
435
        if(!v)
436
        v = h->ref_cache[1][b_idx] != h->ref_cache[1][bn_idx] |
437
            h->mv_cache[1][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
438
            FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit;
439

    
440
    if(v){
441
        if(h->ref_cache[0][b_idx] != h->ref_cache[1][bn_idx] |
442
           h->ref_cache[1][b_idx] != h->ref_cache[0][bn_idx])
443
            return 1;
444
        return
445
           h->mv_cache[0][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
446
           FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit |
447
           h->mv_cache[1][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |
448
           FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;
449
    }
450
    }
451

    
452
    return v;
453
}
454

    
455
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) {
456
    MpegEncContext * const s = &h->s;
457
    int edge;
458
    const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;
459
    const int mbm_type = dir == 0 ? h->left_type[0] : h->top_type;
460

    
461
    // how often to recheck mv-based bS when iterating between edges
462
    static const uint8_t mask_edge_tab[2][8]={{0,3,3,3,1,1,1,1},
463
                                              {0,3,1,1,3,3,3,3}};
464
    const int mask_edge = mask_edge_tab[dir][(mb_type>>3)&7];
465
    const int edges = mask_edge== 3 && !(h->cbp&15) ? 1 : 4;
466

    
467
    // how often to recheck mv-based bS when iterating along each edge
468
    const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));
469

    
470
    if(mbm_type && !first_vertical_edge_done){
471

    
472
        if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0)
473
            && IS_INTERLACED(mbm_type&~mb_type)
474
            ) {
475
            // This is a special case in the norm where the filtering must
476
            // be done twice (one each of the field) even if we are in a
477
            // frame macroblock.
478
            //
479
            unsigned int tmp_linesize   = 2 *   linesize;
480
            unsigned int tmp_uvlinesize = 2 * uvlinesize;
481
            int mbn_xy = mb_xy - 2 * s->mb_stride;
482
            int j;
483

    
484
            for(j=0; j<2; j++, mbn_xy += s->mb_stride){
485
                DECLARE_ALIGNED_8(int16_t, bS)[4];
486
                int qp;
487
                if( IS_INTRA(mb_type|s->current_picture.mb_type[mbn_xy]) ) {
488
                    *(uint64_t*)bS= 0x0003000300030003ULL;
489
                } else {
490
                    const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy] + 4+3*8; //FIXME  8x8dct?
491
                    int i;
492
                    for( i = 0; i < 4; i++ ) {
493
                        bS[i] = 1 + !!(h->non_zero_count_cache[scan8[0]+i] | mbn_nnz[i]);
494
                    }
495
                }
496
                // Do not use s->qscale as luma quantizer because it has not the same
497
                // value in IPCM macroblocks.
498
                qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
499
                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);
500
                { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
501
                filter_mb_edgeh( &img_y[j*linesize], tmp_linesize, bS, qp, h );
502
                filter_mb_edgech( &img_cb[j*uvlinesize], tmp_uvlinesize, bS,
503
                                ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);
504
                filter_mb_edgech( &img_cr[j*uvlinesize], tmp_uvlinesize, bS,
505
                                ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1, h);
506
            }
507
        }else{
508
            DECLARE_ALIGNED_8(int16_t, bS)[4];
509
            int qp;
510

    
511
            if( IS_INTRA(mb_type|mbm_type)) {
512
                *(uint64_t*)bS= 0x0003000300030003ULL;
513
                if (   (!IS_INTERLACED(mb_type|mbm_type))
514
                    || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))
515
                )
516
                    *(uint64_t*)bS= 0x0004000400040004ULL;
517
            } else {
518
                int i, l;
519
                int mv_done;
520

    
521
                if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbm_type)) { //FIXME not posible left
522
                    *(uint64_t*)bS= 0x0001000100010001ULL;
523
                    mv_done = 1;
524
                }
525
                else if( mask_par0 && ((mbm_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
526
                    int b_idx= 8 + 4;
527
                    int bn_idx= b_idx - (dir ? 8:1);
528

    
529
                    bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, 8 + 4, bn_idx, mvy_limit);
530
                    mv_done = 1;
531
                }
532
                else
533
                    mv_done = 0;
534

    
535
                for( i = 0; i < 4; i++ ) {
536
                    int x = dir == 0 ? 0 : i;
537
                    int y = dir == 0 ? i    : 0;
538
                    int b_idx= 8 + 4 + x + 8*y;
539
                    int bn_idx= b_idx - (dir ? 8:1);
540

    
541
                    if( h->non_zero_count_cache[b_idx] |
542
                        h->non_zero_count_cache[bn_idx] ) {
543
                        bS[i] = 2;
544
                    }
545
                    else if(!mv_done)
546
                    {
547
                        bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);
548
                    }
549
                }
550
            }
551

    
552
            /* Filter edge */
553
            // Do not use s->qscale as luma quantizer because it has not the same
554
            // value in IPCM macroblocks.
555
            if(bS[0]+bS[1]+bS[2]+bS[3]){
556
                qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbm_xy] + 1 ) >> 1;
557
                //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]);
558
                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);
559
                //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
560
                if( dir == 0 ) {
561
                    filter_mb_edgev( &img_y[0], linesize, bS, qp, h );
562
                    {
563
                        int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;
564
                        filter_mb_edgecv( &img_cb[0], uvlinesize, bS, qp, h);
565
                        if(h->pps.chroma_qp_diff)
566
                            qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;
567
                        filter_mb_edgecv( &img_cr[0], uvlinesize, bS, qp, h);
568
                    }
569
                } else {
570
                    filter_mb_edgeh( &img_y[0], linesize, bS, qp, h );
571
                    {
572
                        int qp= ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;
573
                        filter_mb_edgech( &img_cb[0], uvlinesize, bS, qp, h);
574
                        if(h->pps.chroma_qp_diff)
575
                            qp= ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbm_xy] ) + 1 ) >> 1;
576
                        filter_mb_edgech( &img_cr[0], uvlinesize, bS, qp, h);
577
                    }
578
                }
579
            }
580
        }
581
    }
582

    
583
    /* Calculate bS */
584
    for( edge = 1; edge < edges; edge++ ) {
585
        DECLARE_ALIGNED_8(int16_t, bS)[4];
586
        int qp;
587

    
588
        if( IS_8x8DCT(mb_type & (edge<<24)) ) // (edge&1) && IS_8x8DCT(mb_type)
589
            continue;
590

    
591
        if( IS_INTRA(mb_type)) {
592
            *(uint64_t*)bS= 0x0003000300030003ULL;
593
        } else {
594
            int i, l;
595
            int mv_done;
596

    
597
            if( edge & mask_edge ) {
598
                *(uint64_t*)bS= 0;
599
                mv_done = 1;
600
            }
601
            else if( mask_par0 ) {
602
                int b_idx= 8 + 4 + edge * (dir ? 8:1);
603
                int bn_idx= b_idx - (dir ? 8:1);
604

    
605
                bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, b_idx, bn_idx, mvy_limit);
606
                mv_done = 1;
607
            }
608
            else
609
                mv_done = 0;
610

    
611
            for( i = 0; i < 4; i++ ) {
612
                int x = dir == 0 ? edge : i;
613
                int y = dir == 0 ? i    : edge;
614
                int b_idx= 8 + 4 + x + 8*y;
615
                int bn_idx= b_idx - (dir ? 8:1);
616

    
617
                if( h->non_zero_count_cache[b_idx] |
618
                    h->non_zero_count_cache[bn_idx] ) {
619
                    bS[i] = 2;
620
                }
621
                else if(!mv_done)
622
                {
623
                    bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);
624
                }
625
            }
626

    
627
            if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
628
                continue;
629
        }
630

    
631
        /* Filter edge */
632
        // Do not use s->qscale as luma quantizer because it has not the same
633
        // value in IPCM macroblocks.
634
        qp = s->current_picture.qscale_table[mb_xy];
635
        //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]);
636
        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);
637
        //{ int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
638
        if( dir == 0 ) {
639
            filter_mb_edgev( &img_y[4*edge], linesize, bS, qp, h );
640
            if( (edge&1) == 0 ) {
641
                filter_mb_edgecv( &img_cb[2*edge], uvlinesize, bS, h->chroma_qp[0], h);
642
                filter_mb_edgecv( &img_cr[2*edge], uvlinesize, bS, h->chroma_qp[1], h);
643
            }
644
        } else {
645
            filter_mb_edgeh( &img_y[4*edge*linesize], linesize, bS, qp, h );
646
            if( (edge&1) == 0 ) {
647
                filter_mb_edgech( &img_cb[2*edge*uvlinesize], uvlinesize, bS, h->chroma_qp[0], h);
648
                filter_mb_edgech( &img_cr[2*edge*uvlinesize], uvlinesize, bS, h->chroma_qp[1], h);
649
            }
650
        }
651
    }
652
}
653

    
654
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) {
655
    MpegEncContext * const s = &h->s;
656
    const int mb_xy= mb_x + mb_y*s->mb_stride;
657
    const int mb_type = s->current_picture.mb_type[mb_xy];
658
    const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;
659
    int first_vertical_edge_done = 0;
660
    av_unused int dir;
661
    int list;
662

    
663
    if (FRAME_MBAFF
664
            // and current and left pair do not have the same interlaced type
665
            && IS_INTERLACED(mb_type^h->left_type[0])
666
            // and left mb is in available to us
667
            && h->left_type[0]) {
668
        /* First vertical edge is different in MBAFF frames
669
         * There are 8 different bS to compute and 2 different Qp
670
         */
671
        DECLARE_ALIGNED_8(int16_t, bS)[8];
672
        int qp[2];
673
        int bqp[2];
674
        int rqp[2];
675
        int mb_qp, mbn0_qp, mbn1_qp;
676
        int i;
677
        first_vertical_edge_done = 1;
678

    
679
        if( IS_INTRA(mb_type) )
680
            *(uint64_t*)&bS[0]=
681
            *(uint64_t*)&bS[4]= 0x0004000400040004ULL;
682
        else {
683
            static const uint8_t offset[2][2][8]={
684
                {
685
                    {7+8*0, 7+8*0, 7+8*0, 7+8*0, 7+8*1, 7+8*1, 7+8*1, 7+8*1},
686
                    {7+8*2, 7+8*2, 7+8*2, 7+8*2, 7+8*3, 7+8*3, 7+8*3, 7+8*3},
687
                },{
688
                    {7+8*0, 7+8*1, 7+8*2, 7+8*3, 7+8*0, 7+8*1, 7+8*2, 7+8*3},
689
                    {7+8*0, 7+8*1, 7+8*2, 7+8*3, 7+8*0, 7+8*1, 7+8*2, 7+8*3},
690
                }
691
            };
692
            const uint8_t *off= offset[MB_FIELD][mb_y&1];
693
            for( i = 0; i < 8; i++ ) {
694
                int j= MB_FIELD ? i>>2 : i&1;
695
                int mbn_xy = h->left_mb_xy[j];
696
                int mbn_type= h->left_type[j];
697

    
698
                if( IS_INTRA( mbn_type ) )
699
                    bS[i] = 4;
700
                else{
701
                    bS[i] = 1 + !!(h->non_zero_count_cache[12+8*(i>>1)] |
702
                         ((!h->pps.cabac && IS_8x8DCT(mbn_type)) ?
703
                            (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))
704
                                                                       :
705
                            h->non_zero_count[mbn_xy][ off[i] ]));
706
                }
707
            }
708
        }
709

    
710
        mb_qp = s->current_picture.qscale_table[mb_xy];
711
        mbn0_qp = s->current_picture.qscale_table[h->left_mb_xy[0]];
712
        mbn1_qp = s->current_picture.qscale_table[h->left_mb_xy[1]];
713
        qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;
714
        bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +
715
                   get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;
716
        rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +
717
                   get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;
718
        qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;
719
        bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +
720
                   get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;
721
        rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +
722
                   get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;
723

    
724
        /* Filter edge */
725
        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);
726
        { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
727
        if(MB_FIELD){
728
            filter_mb_mbaff_edgev ( h, img_y                ,   linesize, bS  , 1, qp [0] );
729
            filter_mb_mbaff_edgev ( h, img_y  + 8*  linesize,   linesize, bS+4, 1, qp [1] );
730
            filter_mb_mbaff_edgecv( h, img_cb,                uvlinesize, bS  , 1, bqp[0] );
731
            filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );
732
            filter_mb_mbaff_edgecv( h, img_cr,                uvlinesize, bS  , 1, rqp[0] );
733
            filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );
734
        }else{
735
            filter_mb_mbaff_edgev ( h, img_y              , 2*  linesize, bS  , 2, qp [0] );
736
            filter_mb_mbaff_edgev ( h, img_y  +   linesize, 2*  linesize, bS+1, 2, qp [1] );
737
            filter_mb_mbaff_edgecv( h, img_cb,              2*uvlinesize, bS  , 2, bqp[0] );
738
            filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );
739
            filter_mb_mbaff_edgecv( h, img_cr,              2*uvlinesize, bS  , 2, rqp[0] );
740
            filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );
741
        }
742
    }
743

    
744
#if CONFIG_SMALL
745
    for( dir = 0; dir < 2; dir++ )
746
        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);
747
#else
748
    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);
749
    filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);
750
#endif
751
}