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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Error resilience / concealment |
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| 3 | * |
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| 4 | * Copyright (c) 2002-2004 Michael Niedermayer |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | /** |
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| 24 | * @file |
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| 25 | * Error resilience / concealment. |
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| 26 | */ |
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| 27 | |||
| 28 | #include |
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| 29 | |||
| 30 | #include "avcodec.h" |
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| 31 | #include "error_resilience.h" |
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| 32 | #include "mpegvideo.h" |
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| 33 | #include "rectangle.h" |
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| 34 | #include "thread.h" |
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| 35 | |||
| 36 | /** |
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| 37 | * @param stride the number of MVs to get to the next row |
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| 38 | * @param mv_step the number of MVs per row or column in a macroblock |
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| 39 | */ |
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| 40 | static void set_mv_strides(ERContext *s, int *mv_step, int *stride) |
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| 41 | { |
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| 42 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
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| 43 | av_assert0(s->quarter_sample); |
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| 44 | *mv_step = 4; |
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| 45 | *stride = s->mb_width * 4; |
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| 46 | } else { |
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| 47 | *mv_step = 2; |
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| 48 | *stride = s->b8_stride; |
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| 49 | } |
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| 50 | } |
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| 51 | |||
| 52 | /** |
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| 53 | * Replace the current MB with a flat dc-only version. |
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| 54 | */ |
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| 55 | static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb, |
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| 56 | uint8_t *dest_cr, int mb_x, int mb_y) |
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| 57 | { |
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| 58 | int *linesize = s->cur_pic->f.linesize; |
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| 59 | int dc, dcu, dcv, y, i; |
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| 60 | for (i = 0; i < 4; i++) { |
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| 61 | dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride]; |
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| 62 | if (dc < 0) |
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| 63 | dc = 0; |
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| 64 | else if (dc > 2040) |
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| 65 | dc = 2040; |
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| 66 | for (y = 0; y < 8; y++) { |
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| 67 | int x; |
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| 68 | for (x = 0; x < 8; x++) |
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| 69 | dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8; |
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| 70 | } |
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| 71 | } |
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| 72 | dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride]; |
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| 73 | dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride]; |
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| 74 | if (dcu < 0) |
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| 75 | dcu = 0; |
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| 76 | else if (dcu > 2040) |
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| 77 | dcu = 2040; |
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| 78 | if (dcv < 0) |
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| 79 | dcv = 0; |
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| 80 | else if (dcv > 2040) |
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| 81 | dcv = 2040; |
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| 82 | for (y = 0; y < 8; y++) { |
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| 83 | int x; |
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| 84 | for (x = 0; x < 8; x++) { |
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| 85 | dest_cb[x + y * linesize[1]] = dcu / 8; |
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| 86 | dest_cr[x + y * linesize[2]] = dcv / 8; |
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| 87 | } |
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| 88 | } |
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| 89 | } |
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| 90 | |||
| 91 | static void filter181(int16_t *data, int width, int height, int stride) |
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| 92 | { |
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| 93 | int x, y; |
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| 94 | |||
| 95 | /* horizontal filter */ |
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| 96 | for (y = 1; y < height - 1; y++) { |
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| 97 | int prev_dc = data[0 + y * stride]; |
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| 98 | |||
| 99 | for (x = 1; x < width - 1; x++) { |
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| 100 | int dc; |
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| 101 | dc = -prev_dc + |
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| 102 | data[x + y * stride] * 8 - |
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| 103 | data[x + 1 + y * stride]; |
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| 104 | dc = (dc * 10923 + 32768) >> 16; |
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| 105 | prev_dc = data[x + y * stride]; |
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| 106 | data[x + y * stride] = dc; |
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| 107 | } |
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| 108 | } |
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| 109 | |||
| 110 | /* vertical filter */ |
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| 111 | for (x = 1; x < width - 1; x++) { |
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| 112 | int prev_dc = data[x]; |
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| 113 | |||
| 114 | for (y = 1; y < height - 1; y++) { |
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| 115 | int dc; |
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| 116 | |||
| 117 | dc = -prev_dc + |
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| 118 | data[x + y * stride] * 8 - |
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| 119 | data[x + (y + 1) * stride]; |
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| 120 | dc = (dc * 10923 + 32768) >> 16; |
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| 121 | prev_dc = data[x + y * stride]; |
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| 122 | data[x + y * stride] = dc; |
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| 123 | } |
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| 124 | } |
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| 125 | } |
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| 126 | |||
| 127 | /** |
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| 128 | * guess the dc of blocks which do not have an undamaged dc |
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| 129 | * @param w width in 8 pixel blocks |
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| 130 | * @param h height in 8 pixel blocks |
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| 131 | */ |
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| 132 | static void guess_dc(ERContext *s, int16_t *dc, int w, |
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| 133 | int h, int stride, int is_luma) |
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| 134 | { |
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| 135 | int b_x, b_y; |
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| 136 | int16_t (*col )[4] = av_malloc(stride*h*sizeof( int16_t)*4); |
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| 137 | uint32_t (*dist)[4] = av_malloc(stride*h*sizeof(uint32_t)*4); |
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| 138 | |||
| 139 | if(!col || !dist) { |
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| 140 | av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n"); |
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| 141 | goto fail; |
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| 142 | } |
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| 143 | |||
| 144 | for(b_y=0; b_y |
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| 145 | int color= 1024; |
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| 146 | int distance= -1; |
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| 147 | for(b_x=0; b_x |
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| 148 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; |
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| 149 | int error_j= s->error_status_table[mb_index_j]; |
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| 150 | int intra_j = IS_INTRA(s->cur_pic->mb_type[mb_index_j]); |
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| 151 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ |
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| 152 | color= dc[b_x + b_y*stride]; |
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| 153 | distance= b_x; |
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| 154 | } |
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| 155 | col [b_x + b_y*stride][1]= color; |
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| 156 | dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999; |
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| 157 | } |
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| 158 | color= 1024; |
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| 159 | distance= -1; |
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| 160 | for(b_x=w-1; b_x>=0; b_x--){ |
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| 161 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; |
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| 162 | int error_j= s->error_status_table[mb_index_j]; |
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| 163 | int intra_j = IS_INTRA(s->cur_pic->mb_type[mb_index_j]); |
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| 164 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ |
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| 165 | color= dc[b_x + b_y*stride]; |
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| 166 | distance= b_x; |
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| 167 | } |
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| 168 | col [b_x + b_y*stride][0]= color; |
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| 169 | dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999; |
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| 170 | } |
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| 171 | } |
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| 172 | for(b_x=0; b_x |
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| 173 | int color= 1024; |
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| 174 | int distance= -1; |
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| 175 | for(b_y=0; b_y |
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| 176 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; |
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| 177 | int error_j= s->error_status_table[mb_index_j]; |
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| 178 | int intra_j = IS_INTRA(s->cur_pic->mb_type[mb_index_j]); |
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| 179 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ |
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| 180 | color= dc[b_x + b_y*stride]; |
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| 181 | distance= b_y; |
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| 182 | } |
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| 183 | col [b_x + b_y*stride][3]= color; |
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| 184 | dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999; |
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| 185 | } |
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| 186 | color= 1024; |
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| 187 | distance= -1; |
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| 188 | for(b_y=h-1; b_y>=0; b_y--){ |
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| 189 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; |
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| 190 | int error_j= s->error_status_table[mb_index_j]; |
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| 191 | int intra_j = IS_INTRA(s->cur_pic->mb_type[mb_index_j]); |
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| 192 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ |
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| 193 | color= dc[b_x + b_y*stride]; |
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| 194 | distance= b_y; |
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| 195 | } |
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| 196 | col [b_x + b_y*stride][2]= color; |
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| 197 | dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999; |
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| 198 | } |
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| 199 | } |
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| 200 | |||
| 201 | for (b_y = 0; b_y < h; b_y++) { |
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| 202 | for (b_x = 0; b_x < w; b_x++) { |
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| 203 | int mb_index, error, j; |
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| 204 | int64_t guess, weight_sum; |
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| 205 | mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride; |
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| 206 | error = s->error_status_table[mb_index]; |
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| 207 | |||
| 208 | if (IS_INTER(s->cur_pic->mb_type[mb_index])) |
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| 209 | continue; // inter |
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| 210 | if (!(error & ER_DC_ERROR)) |
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| 211 | continue; // dc-ok |
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| 212 | |||
| 213 | weight_sum = 0; |
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| 214 | guess = 0; |
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| 215 | for (j = 0; j < 4; j++) { |
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| 216 | int64_t weight = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1); |
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| 217 | guess += weight*(int64_t)col[b_x + b_y*stride][j]; |
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| 218 | weight_sum += weight; |
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| 219 | } |
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| 220 | guess = (guess + weight_sum / 2) / weight_sum; |
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| 221 | dc[b_x + b_y * stride] = guess; |
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| 222 | } |
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| 223 | } |
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| 224 | |||
| 225 | fail: |
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| 226 | av_freep(&col); |
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| 227 | av_freep(&dist); |
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| 228 | } |
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| 229 | |||
| 230 | /** |
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| 231 | * simple horizontal deblocking filter used for error resilience |
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| 232 | * @param w width in 8 pixel blocks |
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| 233 | * @param h height in 8 pixel blocks |
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| 234 | */ |
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| 235 | static void h_block_filter(ERContext *s, uint8_t *dst, int w, |
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| 236 | int h, int stride, int is_luma) |
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| 237 | { |
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| 238 | int b_x, b_y, mvx_stride, mvy_stride; |
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| 239 | const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
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| 240 | set_mv_strides(s, &mvx_stride, &mvy_stride); |
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| 241 | mvx_stride >>= is_luma; |
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| 242 | mvy_stride *= mvx_stride; |
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| 243 | |||
| 244 | for (b_y = 0; b_y < h; b_y++) { |
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| 245 | for (b_x = 0; b_x < w - 1; b_x++) { |
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| 246 | int y; |
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| 247 | int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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| 248 | int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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| 249 | int left_intra = IS_INTRA(s->cur_pic->mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]); |
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| 250 | int right_intra = IS_INTRA(s->cur_pic->mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]); |
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| 251 | int left_damage = left_status & ER_MB_ERROR; |
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| 252 | int right_damage = right_status & ER_MB_ERROR; |
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| 253 | int offset = b_x * 8 + b_y * stride * 8; |
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| 254 | int16_t *left_mv = s->cur_pic->motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; |
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| 255 | int16_t *right_mv = s->cur_pic->motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)]; |
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| 256 | if (!(left_damage || right_damage)) |
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| 257 | continue; // both undamaged |
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| 258 | if ((!left_intra) && (!right_intra) && |
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| 259 | FFABS(left_mv[0] - right_mv[0]) + |
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| 260 | FFABS(left_mv[1] + right_mv[1]) < 2) |
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| 261 | continue; |
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| 262 | |||
| 263 | for (y = 0; y < 8; y++) { |
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| 264 | int a, b, c, d; |
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| 265 | |||
| 266 | a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride]; |
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| 267 | b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride]; |
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| 268 | c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride]; |
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| 269 | |||
| 270 | d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); |
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| 271 | d = FFMAX(d, 0); |
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| 272 | if (b < 0) |
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| 273 | d = -d; |
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| 274 | |||
| 275 | if (d == 0) |
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| 276 | continue; |
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| 277 | |||
| 278 | if (!(left_damage && right_damage)) |
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| 279 | d = d * 16 / 9; |
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| 280 | |||
| 281 | if (left_damage) { |
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| 282 | dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)]; |
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| 283 | dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)]; |
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| 284 | dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)]; |
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| 285 | dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)]; |
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| 286 | } |
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| 287 | if (right_damage) { |
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| 288 | dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)]; |
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| 289 | dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)]; |
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| 290 | dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)]; |
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| 291 | dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)]; |
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| 292 | } |
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| 293 | } |
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| 294 | } |
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| 295 | } |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * simple vertical deblocking filter used for error resilience |
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| 300 | * @param w width in 8 pixel blocks |
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| 301 | * @param h height in 8 pixel blocks |
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| 302 | */ |
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| 303 | static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h, |
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| 304 | int stride, int is_luma) |
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| 305 | { |
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| 306 | int b_x, b_y, mvx_stride, mvy_stride; |
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| 307 | const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
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| 308 | set_mv_strides(s, &mvx_stride, &mvy_stride); |
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| 309 | mvx_stride >>= is_luma; |
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| 310 | mvy_stride *= mvx_stride; |
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| 311 | |||
| 312 | for (b_y = 0; b_y < h - 1; b_y++) { |
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| 313 | for (b_x = 0; b_x < w; b_x++) { |
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| 314 | int x; |
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| 315 | int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; |
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| 316 | int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]; |
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| 317 | int top_intra = IS_INTRA(s->cur_pic->mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]); |
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| 318 | int bottom_intra = IS_INTRA(s->cur_pic->mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]); |
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| 319 | int top_damage = top_status & ER_MB_ERROR; |
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| 320 | int bottom_damage = bottom_status & ER_MB_ERROR; |
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| 321 | int offset = b_x * 8 + b_y * stride * 8; |
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| 322 | |||
| 323 | int16_t *top_mv = s->cur_pic->motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; |
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| 324 | int16_t *bottom_mv = s->cur_pic->motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x]; |
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| 325 | |||
| 326 | if (!(top_damage || bottom_damage)) |
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| 327 | continue; // both undamaged |
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| 328 | |||
| 329 | if ((!top_intra) && (!bottom_intra) && |
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| 330 | FFABS(top_mv[0] - bottom_mv[0]) + |
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| 331 | FFABS(top_mv[1] + bottom_mv[1]) < 2) |
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| 332 | continue; |
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| 333 | |||
| 334 | for (x = 0; x < 8; x++) { |
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| 335 | int a, b, c, d; |
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| 336 | |||
| 337 | a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride]; |
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| 338 | b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride]; |
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| 339 | c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride]; |
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| 340 | |||
| 341 | d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); |
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| 342 | d = FFMAX(d, 0); |
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| 343 | if (b < 0) |
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| 344 | d = -d; |
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| 345 | |||
| 346 | if (d == 0) |
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| 347 | continue; |
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| 348 | |||
| 349 | if (!(top_damage && bottom_damage)) |
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| 350 | d = d * 16 / 9; |
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| 351 | |||
| 352 | if (top_damage) { |
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| 353 | dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)]; |
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| 354 | dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)]; |
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| 355 | dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)]; |
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| 356 | dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)]; |
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| 357 | } |
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| 358 | if (bottom_damage) { |
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| 359 | dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)]; |
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| 360 | dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)]; |
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| 361 | dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)]; |
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| 362 | dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)]; |
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| 363 | } |
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| 364 | } |
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| 365 | } |
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| 366 | } |
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| 367 | } |
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| 368 | |||
| 369 | static void guess_mv(ERContext *s) |
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| 370 | { |
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| 371 | uint8_t *fixed = s->er_temp_buffer; |
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| 372 | #define MV_FROZEN 3 |
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| 373 | #define MV_CHANGED 2 |
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| 374 | #define MV_UNCHANGED 1 |
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| 375 | const int mb_stride = s->mb_stride; |
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| 376 | const int mb_width = s->mb_width; |
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| 377 | const int mb_height = s->mb_height; |
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| 378 | int i, depth, num_avail; |
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| 379 | int mb_x, mb_y, mot_step, mot_stride; |
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| 380 | |||
| 381 | set_mv_strides(s, &mot_step, &mot_stride); |
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| 382 | |||
| 383 | num_avail = 0; |
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| 384 | for (i = 0; i < s->mb_num; i++) { |
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| 385 | const int mb_xy = s->mb_index2xy[i]; |
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| 386 | int f = 0; |
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| 387 | int error = s->error_status_table[mb_xy]; |
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| 388 | |||
| 389 | if (IS_INTRA(s->cur_pic->mb_type[mb_xy])) |
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| 390 | f = MV_FROZEN; // intra // FIXME check |
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| 391 | if (!(error & ER_MV_ERROR)) |
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| 392 | f = MV_FROZEN; // inter with undamaged MV |
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| 393 | |||
| 394 | fixed[mb_xy] = f; |
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| 395 | if (f == MV_FROZEN) |
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| 396 | num_avail++; |
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| 397 | else if(s->last_pic->f.data[0] && s->last_pic->motion_val[0]){ |
||
| 398 | const int mb_y= mb_xy / s->mb_stride; |
||
| 399 | const int mb_x= mb_xy % s->mb_stride; |
||
| 400 | const int mot_index= (mb_x + mb_y*mot_stride) * mot_step; |
||
| 401 | s->cur_pic->motion_val[0][mot_index][0]= s->last_pic->motion_val[0][mot_index][0]; |
||
| 402 | s->cur_pic->motion_val[0][mot_index][1]= s->last_pic->motion_val[0][mot_index][1]; |
||
| 403 | s->cur_pic->ref_index[0][4*mb_xy] = s->last_pic->ref_index[0][4*mb_xy]; |
||
| 404 | } |
||
| 405 | } |
||
| 406 | |||
| 407 | if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || |
||
| 408 | num_avail <= mb_width / 2) { |
||
| 409 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 410 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 411 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 412 | int mv_dir = (s->last_pic && s->last_pic->f.data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD; |
||
| 413 | |||
| 414 | if (IS_INTRA(s->cur_pic->mb_type[mb_xy])) |
||
| 415 | continue; |
||
| 416 | if (!(s->error_status_table[mb_xy] & ER_MV_ERROR)) |
||
| 417 | continue; |
||
| 418 | |||
| 419 | s->mv[0][0][0] = 0; |
||
| 420 | s->mv[0][0][1] = 0; |
||
| 421 | s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, |
||
| 422 | mb_x, mb_y, 0, 0); |
||
| 423 | } |
||
| 424 | } |
||
| 425 | return; |
||
| 426 | } |
||
| 427 | |||
| 428 | for (depth = 0; ; depth++) { |
||
| 429 | int changed, pass, none_left; |
||
| 430 | |||
| 431 | none_left = 1; |
||
| 432 | changed = 1; |
||
| 433 | for (pass = 0; (changed || pass < 2) && pass < 10; pass++) { |
||
| 434 | int mb_x, mb_y; |
||
| 435 | int score_sum = 0; |
||
| 436 | |||
| 437 | changed = 0; |
||
| 438 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 439 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 440 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 441 | int mv_predictor[8][2] = { { 0 } }; |
||
| 442 | int ref[8] = { 0 }; |
||
| 443 | int pred_count = 0; |
||
| 444 | int j; |
||
| 445 | int best_score = 256 * 256 * 256 * 64; |
||
| 446 | int best_pred = 0; |
||
| 447 | const int mot_index = (mb_x + mb_y * mot_stride) * mot_step; |
||
| 448 | int prev_x, prev_y, prev_ref; |
||
| 449 | |||
| 450 | if ((mb_x ^ mb_y ^ pass) & 1) |
||
| 451 | continue; |
||
| 452 | |||
| 453 | if (fixed[mb_xy] == MV_FROZEN) |
||
| 454 | continue; |
||
| 455 | av_assert1(!IS_INTRA(s->cur_pic->mb_type[mb_xy])); |
||
| 456 | av_assert1(s->last_pic && s->last_pic->f.data[0]); |
||
| 457 | |||
| 458 | j = 0; |
||
| 459 | if (mb_x > 0 && fixed[mb_xy - 1] == MV_FROZEN) |
||
| 460 | j = 1; |
||
| 461 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1] == MV_FROZEN) |
||
| 462 | j = 1; |
||
| 463 | if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_FROZEN) |
||
| 464 | j = 1; |
||
| 465 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_FROZEN) |
||
| 466 | j = 1; |
||
| 467 | if (j == 0) |
||
| 468 | continue; |
||
| 469 | |||
| 470 | j = 0; |
||
| 471 | if (mb_x > 0 && fixed[mb_xy - 1 ] == MV_CHANGED) |
||
| 472 | j = 1; |
||
| 473 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1 ] == MV_CHANGED) |
||
| 474 | j = 1; |
||
| 475 | if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_CHANGED) |
||
| 476 | j = 1; |
||
| 477 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_CHANGED) |
||
| 478 | j = 1; |
||
| 479 | if (j == 0 && pass > 1) |
||
| 480 | continue; |
||
| 481 | |||
| 482 | none_left = 0; |
||
| 483 | |||
| 484 | if (mb_x > 0 && fixed[mb_xy - 1]) { |
||
| 485 | mv_predictor[pred_count][0] = |
||
| 486 | s->cur_pic->motion_val[0][mot_index - mot_step][0]; |
||
| 487 | mv_predictor[pred_count][1] = |
||
| 488 | s->cur_pic->motion_val[0][mot_index - mot_step][1]; |
||
| 489 | ref[pred_count] = |
||
| 490 | s->cur_pic->ref_index[0][4 * (mb_xy - 1)]; |
||
| 491 | pred_count++; |
||
| 492 | } |
||
| 493 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { |
||
| 494 | mv_predictor[pred_count][0] = |
||
| 495 | s->cur_pic->motion_val[0][mot_index + mot_step][0]; |
||
| 496 | mv_predictor[pred_count][1] = |
||
| 497 | s->cur_pic->motion_val[0][mot_index + mot_step][1]; |
||
| 498 | ref[pred_count] = |
||
| 499 | s->cur_pic->ref_index[0][4 * (mb_xy + 1)]; |
||
| 500 | pred_count++; |
||
| 501 | } |
||
| 502 | if (mb_y > 0 && fixed[mb_xy - mb_stride]) { |
||
| 503 | mv_predictor[pred_count][0] = |
||
| 504 | s->cur_pic->motion_val[0][mot_index - mot_stride * mot_step][0]; |
||
| 505 | mv_predictor[pred_count][1] = |
||
| 506 | s->cur_pic->motion_val[0][mot_index - mot_stride * mot_step][1]; |
||
| 507 | ref[pred_count] = |
||
| 508 | s->cur_pic->ref_index[0][4 * (mb_xy - s->mb_stride)]; |
||
| 509 | pred_count++; |
||
| 510 | } |
||
| 511 | if (mb_y + 1 |
||
| 512 | mv_predictor[pred_count][0] = |
||
| 513 | s->cur_pic->motion_val[0][mot_index + mot_stride * mot_step][0]; |
||
| 514 | mv_predictor[pred_count][1] = |
||
| 515 | s->cur_pic->motion_val[0][mot_index + mot_stride * mot_step][1]; |
||
| 516 | ref[pred_count] = |
||
| 517 | s->cur_pic->ref_index[0][4 * (mb_xy + s->mb_stride)]; |
||
| 518 | pred_count++; |
||
| 519 | } |
||
| 520 | if (pred_count == 0) |
||
| 521 | continue; |
||
| 522 | |||
| 523 | if (pred_count > 1) { |
||
| 524 | int sum_x = 0, sum_y = 0, sum_r = 0; |
||
| 525 | int max_x, max_y, min_x, min_y, max_r, min_r; |
||
| 526 | |||
| 527 | for (j = 0; j < pred_count; j++) { |
||
| 528 | sum_x += mv_predictor[j][0]; |
||
| 529 | sum_y += mv_predictor[j][1]; |
||
| 530 | sum_r += ref[j]; |
||
| 531 | if (j && ref[j] != ref[j - 1]) |
||
| 532 | goto skip_mean_and_median; |
||
| 533 | } |
||
| 534 | |||
| 535 | /* mean */ |
||
| 536 | mv_predictor[pred_count][0] = sum_x / j; |
||
| 537 | mv_predictor[pred_count][1] = sum_y / j; |
||
| 538 | ref[pred_count] = sum_r / j; |
||
| 539 | |||
| 540 | /* median */ |
||
| 541 | if (pred_count >= 3) { |
||
| 542 | min_y = min_x = min_r = 99999; |
||
| 543 | max_y = max_x = max_r = -99999; |
||
| 544 | } else { |
||
| 545 | min_x = min_y = max_x = max_y = min_r = max_r = 0; |
||
| 546 | } |
||
| 547 | for (j = 0; j < pred_count; j++) { |
||
| 548 | max_x = FFMAX(max_x, mv_predictor[j][0]); |
||
| 549 | max_y = FFMAX(max_y, mv_predictor[j][1]); |
||
| 550 | max_r = FFMAX(max_r, ref[j]); |
||
| 551 | min_x = FFMIN(min_x, mv_predictor[j][0]); |
||
| 552 | min_y = FFMIN(min_y, mv_predictor[j][1]); |
||
| 553 | min_r = FFMIN(min_r, ref[j]); |
||
| 554 | } |
||
| 555 | mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x; |
||
| 556 | mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y; |
||
| 557 | ref[pred_count + 1] = sum_r - max_r - min_r; |
||
| 558 | |||
| 559 | if (pred_count == 4) { |
||
| 560 | mv_predictor[pred_count + 1][0] /= 2; |
||
| 561 | mv_predictor[pred_count + 1][1] /= 2; |
||
| 562 | ref[pred_count + 1] /= 2; |
||
| 563 | } |
||
| 564 | pred_count += 2; |
||
| 565 | } |
||
| 566 | |||
| 567 | skip_mean_and_median: |
||
| 568 | /* zero MV */ |
||
| 569 | pred_count++; |
||
| 570 | |||
| 571 | if (!fixed[mb_xy] && 0) { |
||
| 572 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
||
| 573 | // FIXME |
||
| 574 | } else { |
||
| 575 | ff_thread_await_progress(&s->last_pic->tf, |
||
| 576 | mb_y, 0); |
||
| 577 | } |
||
| 578 | if (!s->last_pic->motion_val[0] || |
||
| 579 | !s->last_pic->ref_index[0]) |
||
| 580 | goto skip_last_mv; |
||
| 581 | prev_x = s->last_pic->motion_val[0][mot_index][0]; |
||
| 582 | prev_y = s->last_pic->motion_val[0][mot_index][1]; |
||
| 583 | prev_ref = s->last_pic->ref_index[0][4 * mb_xy]; |
||
| 584 | } else { |
||
| 585 | prev_x = s->cur_pic->motion_val[0][mot_index][0]; |
||
| 586 | prev_y = s->cur_pic->motion_val[0][mot_index][1]; |
||
| 587 | prev_ref = s->cur_pic->ref_index[0][4 * mb_xy]; |
||
| 588 | } |
||
| 589 | |||
| 590 | /* last MV */ |
||
| 591 | mv_predictor[pred_count][0] = prev_x; |
||
| 592 | mv_predictor[pred_count][1] = prev_y; |
||
| 593 | ref[pred_count] = prev_ref; |
||
| 594 | pred_count++; |
||
| 595 | |||
| 596 | skip_last_mv: |
||
| 597 | |||
| 598 | for (j = 0; j < pred_count; j++) { |
||
| 599 | int *linesize = s->cur_pic->f.linesize; |
||
| 600 | int score = 0; |
||
| 601 | uint8_t *src = s->cur_pic->f.data[0] + |
||
| 602 | mb_x * 16 + mb_y * 16 * linesize[0]; |
||
| 603 | |||
| 604 | s->cur_pic->motion_val[0][mot_index][0] = |
||
| 605 | s->mv[0][0][0] = mv_predictor[j][0]; |
||
| 606 | s->cur_pic->motion_val[0][mot_index][1] = |
||
| 607 | s->mv[0][0][1] = mv_predictor[j][1]; |
||
| 608 | |||
| 609 | // predictor intra or otherwise not available |
||
| 610 | if (ref[j] < 0) |
||
| 611 | continue; |
||
| 612 | |||
| 613 | s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD, |
||
| 614 | MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); |
||
| 615 | |||
| 616 | if (mb_x > 0 && fixed[mb_xy - 1]) { |
||
| 617 | int k; |
||
| 618 | for (k = 0; k < 16; k++) |
||
| 619 | score += FFABS(src[k * linesize[0] - 1] - |
||
| 620 | src[k * linesize[0]]); |
||
| 621 | } |
||
| 622 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { |
||
| 623 | int k; |
||
| 624 | for (k = 0; k < 16; k++) |
||
| 625 | score += FFABS(src[k * linesize[0] + 15] - |
||
| 626 | src[k * linesize[0] + 16]); |
||
| 627 | } |
||
| 628 | if (mb_y > 0 && fixed[mb_xy - mb_stride]) { |
||
| 629 | int k; |
||
| 630 | for (k = 0; k < 16; k++) |
||
| 631 | score += FFABS(src[k - linesize[0]] - src[k]); |
||
| 632 | } |
||
| 633 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride]) { |
||
| 634 | int k; |
||
| 635 | for (k = 0; k < 16; k++) |
||
| 636 | score += FFABS(src[k + linesize[0] * 15] - |
||
| 637 | src[k + linesize[0] * 16]); |
||
| 638 | } |
||
| 639 | |||
| 640 | if (score <= best_score) { // <= will favor the last MV |
||
| 641 | best_score = score; |
||
| 642 | best_pred = j; |
||
| 643 | } |
||
| 644 | } |
||
| 645 | score_sum += best_score; |
||
| 646 | s->mv[0][0][0] = mv_predictor[best_pred][0]; |
||
| 647 | s->mv[0][0][1] = mv_predictor[best_pred][1]; |
||
| 648 | |||
| 649 | for (i = 0; i < mot_step; i++) |
||
| 650 | for (j = 0; j < mot_step; j++) { |
||
| 651 | s->cur_pic->motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0]; |
||
| 652 | s->cur_pic->motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1]; |
||
| 653 | } |
||
| 654 | |||
| 655 | s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD, |
||
| 656 | MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); |
||
| 657 | |||
| 658 | |||
| 659 | if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) { |
||
| 660 | fixed[mb_xy] = MV_CHANGED; |
||
| 661 | changed++; |
||
| 662 | } else |
||
| 663 | fixed[mb_xy] = MV_UNCHANGED; |
||
| 664 | } |
||
| 665 | } |
||
| 666 | } |
||
| 667 | |||
| 668 | if (none_left) |
||
| 669 | return; |
||
| 670 | |||
| 671 | for (i = 0; i < s->mb_num; i++) { |
||
| 672 | int mb_xy = s->mb_index2xy[i]; |
||
| 673 | if (fixed[mb_xy]) |
||
| 674 | fixed[mb_xy] = MV_FROZEN; |
||
| 675 | } |
||
| 676 | } |
||
| 677 | } |
||
| 678 | |||
| 679 | static int is_intra_more_likely(ERContext *s) |
||
| 680 | { |
||
| 681 | int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y; |
||
| 682 | |||
| 683 | if (!s->last_pic || !s->last_pic->f.data[0]) |
||
| 684 | return 1; // no previous frame available -> use spatial prediction |
||
| 685 | |||
| 686 | undamaged_count = 0; |
||
| 687 | for (i = 0; i < s->mb_num; i++) { |
||
| 688 | const int mb_xy = s->mb_index2xy[i]; |
||
| 689 | const int error = s->error_status_table[mb_xy]; |
||
| 690 | if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) |
||
| 691 | undamaged_count++; |
||
| 692 | } |
||
| 693 | |||
| 694 | if (s->avctx->codec_id == AV_CODEC_ID_H264 && s->ref_count <= 0) |
||
| 695 | return 1; |
||
| 696 | |||
| 697 | if (undamaged_count < 5) |
||
| 698 | return 0; // almost all MBs damaged -> use temporal prediction |
||
| 699 | |||
| 700 | // prevent dsp.sad() check, that requires access to the image |
||
| 701 | if (CONFIG_MPEG_XVMC_DECODER && |
||
| 702 | s->avctx->xvmc_acceleration && |
||
| 703 | s->cur_pic->f.pict_type == AV_PICTURE_TYPE_I) |
||
| 704 | return 1; |
||
| 705 | |||
| 706 | skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs |
||
| 707 | is_intra_likely = 0; |
||
| 708 | |||
| 709 | j = 0; |
||
| 710 | for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) { |
||
| 711 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 712 | int error; |
||
| 713 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 714 | |||
| 715 | error = s->error_status_table[mb_xy]; |
||
| 716 | if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR)) |
||
| 717 | continue; // skip damaged |
||
| 718 | |||
| 719 | j++; |
||
| 720 | // skip a few to speed things up |
||
| 721 | if ((j % skip_amount) != 0) |
||
| 722 | continue; |
||
| 723 | |||
| 724 | if (s->cur_pic->f.pict_type == AV_PICTURE_TYPE_I) { |
||
| 725 | int *linesize = s->cur_pic->f.linesize; |
||
| 726 | uint8_t *mb_ptr = s->cur_pic->f.data[0] + |
||
| 727 | mb_x * 16 + mb_y * 16 * linesize[0]; |
||
| 728 | uint8_t *last_mb_ptr = s->last_pic->f.data[0] + |
||
| 729 | mb_x * 16 + mb_y * 16 * linesize[0]; |
||
| 730 | |||
| 731 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { |
||
| 732 | // FIXME |
||
| 733 | } else { |
||
| 734 | ff_thread_await_progress(&s->last_pic->tf, mb_y, 0); |
||
| 735 | } |
||
| 736 | is_intra_likely += s->dsp->sad[0](NULL, last_mb_ptr, mb_ptr, |
||
| 737 | linesize[0], 16); |
||
| 738 | // FIXME need await_progress() here |
||
| 739 | is_intra_likely -= s->dsp->sad[0](NULL, last_mb_ptr, |
||
| 740 | last_mb_ptr + linesize[0] * 16, |
||
| 741 | linesize[0], 16); |
||
| 742 | } else { |
||
| 743 | if (IS_INTRA(s->cur_pic->mb_type[mb_xy])) |
||
| 744 | is_intra_likely++; |
||
| 745 | else |
||
| 746 | is_intra_likely--; |
||
| 747 | } |
||
| 748 | } |
||
| 749 | } |
||
| 750 | // av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type); |
||
| 751 | return is_intra_likely > 0; |
||
| 752 | } |
||
| 753 | |||
| 754 | void ff_er_frame_start(ERContext *s) |
||
| 755 | { |
||
| 756 | if (!s->avctx->error_concealment) |
||
| 757 | return; |
||
| 758 | |||
| 759 | memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END, |
||
| 760 | s->mb_stride * s->mb_height * sizeof(uint8_t)); |
||
| 761 | s->error_count = 3 * s->mb_num; |
||
| 762 | s->error_occurred = 0; |
||
| 763 | } |
||
| 764 | |||
| 765 | /** |
||
| 766 | * Add a slice. |
||
| 767 | * @param endx x component of the last macroblock, can be -1 |
||
| 768 | * for the last of the previous line |
||
| 769 | * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is |
||
| 770 | * assumed that no earlier end or error of the same type occurred |
||
| 771 | */ |
||
| 772 | void ff_er_add_slice(ERContext *s, int startx, int starty, |
||
| 773 | int endx, int endy, int status) |
||
| 774 | { |
||
| 775 | const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1); |
||
| 776 | const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num); |
||
| 777 | const int start_xy = s->mb_index2xy[start_i]; |
||
| 778 | const int end_xy = s->mb_index2xy[end_i]; |
||
| 779 | int mask = -1; |
||
| 780 | |||
| 781 | if (s->avctx->hwaccel) |
||
| 782 | return; |
||
| 783 | |||
| 784 | if (start_i > end_i || start_xy > end_xy) { |
||
| 785 | av_log(s->avctx, AV_LOG_ERROR, |
||
| 786 | "internal error, slice end before start\n"); |
||
| 787 | return; |
||
| 788 | } |
||
| 789 | |||
| 790 | if (!s->avctx->error_concealment) |
||
| 791 | return; |
||
| 792 | |||
| 793 | mask &= ~VP_START; |
||
| 794 | if (status & (ER_AC_ERROR | ER_AC_END)) { |
||
| 795 | mask &= ~(ER_AC_ERROR | ER_AC_END); |
||
| 796 | s->error_count -= end_i - start_i + 1; |
||
| 797 | } |
||
| 798 | if (status & (ER_DC_ERROR | ER_DC_END)) { |
||
| 799 | mask &= ~(ER_DC_ERROR | ER_DC_END); |
||
| 800 | s->error_count -= end_i - start_i + 1; |
||
| 801 | } |
||
| 802 | if (status & (ER_MV_ERROR | ER_MV_END)) { |
||
| 803 | mask &= ~(ER_MV_ERROR | ER_MV_END); |
||
| 804 | s->error_count -= end_i - start_i + 1; |
||
| 805 | } |
||
| 806 | |||
| 807 | if (status & ER_MB_ERROR) { |
||
| 808 | s->error_occurred = 1; |
||
| 809 | s->error_count = INT_MAX; |
||
| 810 | } |
||
| 811 | |||
| 812 | if (mask == ~0x7F) { |
||
| 813 | memset(&s->error_status_table[start_xy], 0, |
||
| 814 | (end_xy - start_xy) * sizeof(uint8_t)); |
||
| 815 | } else { |
||
| 816 | int i; |
||
| 817 | for (i = start_xy; i < end_xy; i++) |
||
| 818 | s->error_status_table[i] &= mask; |
||
| 819 | } |
||
| 820 | |||
| 821 | if (end_i == s->mb_num) |
||
| 822 | s->error_count = INT_MAX; |
||
| 823 | else { |
||
| 824 | s->error_status_table[end_xy] &= mask; |
||
| 825 | s->error_status_table[end_xy] |= status; |
||
| 826 | } |
||
| 827 | |||
| 828 | s->error_status_table[start_xy] |= VP_START; |
||
| 829 | |||
| 830 | if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) && |
||
| 831 | s->avctx->skip_top * s->mb_width < start_i) { |
||
| 832 | int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]]; |
||
| 833 | |||
| 834 | prev_status &= ~ VP_START; |
||
| 835 | if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) { |
||
| 836 | s->error_occurred = 1; |
||
| 837 | s->error_count = INT_MAX; |
||
| 838 | } |
||
| 839 | } |
||
| 840 | } |
||
| 841 | |||
| 842 | void ff_er_frame_end(ERContext *s) |
||
| 843 | { |
||
| 844 | int *linesize = s->cur_pic->f.linesize; |
||
| 845 | int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error; |
||
| 846 | int distance; |
||
| 847 | int threshold_part[4] = { 100, 100, 100 }; |
||
| 848 | int threshold = 50; |
||
| 849 | int is_intra_likely; |
||
| 850 | int size = s->b8_stride * 2 * s->mb_height; |
||
| 851 | |||
| 852 | /* We do not support ER of field pictures yet, |
||
| 853 | * though it should not crash if enabled. */ |
||
| 854 | if (!s->avctx->error_concealment || s->error_count == 0 || |
||
| 855 | s->avctx->lowres || |
||
| 856 | s->avctx->hwaccel || |
||
| 857 | s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU || |
||
| 858 | !s->cur_pic || s->cur_pic->field_picture || |
||
| 859 | s->error_count == 3 * s->mb_width * |
||
| 860 | (s->avctx->skip_top + s->avctx->skip_bottom)) { |
||
| 861 | return; |
||
| 862 | } |
||
| 863 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 864 | int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride]; |
||
| 865 | if (status != 0x7F) |
||
| 866 | break; |
||
| 867 | } |
||
| 868 | |||
| 869 | if ( mb_x == s->mb_width |
||
| 870 | && s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO |
||
| 871 | && (s->avctx->height&16) |
||
| 872 | && s->error_count == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1) |
||
| 873 | ) { |
||
| 874 | av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n"); |
||
| 875 | return; |
||
| 876 | } |
||
| 877 | |||
| 878 | if (s->last_pic) { |
||
| 879 | if (s->last_pic->f.width != s->cur_pic->f.width || |
||
| 880 | s->last_pic->f.height != s->cur_pic->f.height || |
||
| 881 | s->last_pic->f.format != s->cur_pic->f.format) { |
||
| 882 | av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n"); |
||
| 883 | s->last_pic = NULL; |
||
| 884 | } |
||
| 885 | } |
||
| 886 | if (s->next_pic) { |
||
| 887 | if (s->next_pic->f.width != s->cur_pic->f.width || |
||
| 888 | s->next_pic->f.height != s->cur_pic->f.height || |
||
| 889 | s->next_pic->f.format != s->cur_pic->f.format) { |
||
| 890 | av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n"); |
||
| 891 | s->next_pic = NULL; |
||
| 892 | } |
||
| 893 | } |
||
| 894 | |||
| 895 | if (s->cur_pic->motion_val[0] == NULL) { |
||
| 896 | av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n"); |
||
| 897 | |||
| 898 | for (i = 0; i < 2; i++) { |
||
| 899 | s->cur_pic->ref_index_buf[i] = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t)); |
||
| 900 | s->cur_pic->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t)); |
||
| 901 | if (!s->cur_pic->ref_index_buf[i] || !s->cur_pic->motion_val_buf[i]) |
||
| 902 | break; |
||
| 903 | s->cur_pic->ref_index[i] = s->cur_pic->ref_index_buf[i]->data; |
||
| 904 | s->cur_pic->motion_val[i] = (int16_t (*)[2])s->cur_pic->motion_val_buf[i]->data + 4; |
||
| 905 | } |
||
| 906 | if (i < 2) { |
||
| 907 | for (i = 0; i < 2; i++) { |
||
| 908 | av_buffer_unref(&s->cur_pic->ref_index_buf[i]); |
||
| 909 | av_buffer_unref(&s->cur_pic->motion_val_buf[i]); |
||
| 910 | s->cur_pic->ref_index[i] = NULL; |
||
| 911 | s->cur_pic->motion_val[i] = NULL; |
||
| 912 | } |
||
| 913 | return; |
||
| 914 | } |
||
| 915 | } |
||
| 916 | |||
| 917 | if (s->avctx->debug & FF_DEBUG_ER) { |
||
| 918 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 919 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 920 | int status = s->error_status_table[mb_x + mb_y * s->mb_stride]; |
||
| 921 | |||
| 922 | av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status); |
||
| 923 | } |
||
| 924 | av_log(s->avctx, AV_LOG_DEBUG, "\n"); |
||
| 925 | } |
||
| 926 | } |
||
| 927 | |||
| 928 | #if 1 |
||
| 929 | /* handle overlapping slices */ |
||
| 930 | for (error_type = 1; error_type <= 3; error_type++) { |
||
| 931 | int end_ok = 0; |
||
| 932 | |||
| 933 | for (i = s->mb_num - 1; i >= 0; i--) { |
||
| 934 | const int mb_xy = s->mb_index2xy[i]; |
||
| 935 | int error = s->error_status_table[mb_xy]; |
||
| 936 | |||
| 937 | if (error & (1 << error_type)) |
||
| 938 | end_ok = 1; |
||
| 939 | if (error & (8 << error_type)) |
||
| 940 | end_ok = 1; |
||
| 941 | |||
| 942 | if (!end_ok) |
||
| 943 | s->error_status_table[mb_xy] |= 1 << error_type; |
||
| 944 | |||
| 945 | if (error & VP_START) |
||
| 946 | end_ok = 0; |
||
| 947 | } |
||
| 948 | } |
||
| 949 | #endif |
||
| 950 | #if 1 |
||
| 951 | /* handle slices with partitions of different length */ |
||
| 952 | if (s->partitioned_frame) { |
||
| 953 | int end_ok = 0; |
||
| 954 | |||
| 955 | for (i = s->mb_num - 1; i >= 0; i--) { |
||
| 956 | const int mb_xy = s->mb_index2xy[i]; |
||
| 957 | int error = s->error_status_table[mb_xy]; |
||
| 958 | |||
| 959 | if (error & ER_AC_END) |
||
| 960 | end_ok = 0; |
||
| 961 | if ((error & ER_MV_END) || |
||
| 962 | (error & ER_DC_END) || |
||
| 963 | (error & ER_AC_ERROR)) |
||
| 964 | end_ok = 1; |
||
| 965 | |||
| 966 | if (!end_ok) |
||
| 967 | s->error_status_table[mb_xy]|= ER_AC_ERROR; |
||
| 968 | |||
| 969 | if (error & VP_START) |
||
| 970 | end_ok = 0; |
||
| 971 | } |
||
| 972 | } |
||
| 973 | #endif |
||
| 974 | /* handle missing slices */ |
||
| 975 | if (s->avctx->err_recognition & AV_EF_EXPLODE) { |
||
| 976 | int end_ok = 1; |
||
| 977 | |||
| 978 | // FIXME + 100 hack |
||
| 979 | for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) { |
||
| 980 | const int mb_xy = s->mb_index2xy[i]; |
||
| 981 | int error1 = s->error_status_table[mb_xy]; |
||
| 982 | int error2 = s->error_status_table[s->mb_index2xy[i + 1]]; |
||
| 983 | |||
| 984 | if (error1 & VP_START) |
||
| 985 | end_ok = 1; |
||
| 986 | |||
| 987 | if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) && |
||
| 988 | error1 != (VP_START | ER_MB_ERROR | ER_MB_END) && |
||
| 989 | ((error1 & ER_AC_END) || (error1 & ER_DC_END) || |
||
| 990 | (error1 & ER_MV_END))) { |
||
| 991 | // end & uninit |
||
| 992 | end_ok = 0; |
||
| 993 | } |
||
| 994 | |||
| 995 | if (!end_ok) |
||
| 996 | s->error_status_table[mb_xy] |= ER_MB_ERROR; |
||
| 997 | } |
||
| 998 | } |
||
| 999 | |||
| 1000 | #if 1 |
||
| 1001 | /* backward mark errors */ |
||
| 1002 | distance = 9999999; |
||
| 1003 | for (error_type = 1; error_type <= 3; error_type++) { |
||
| 1004 | for (i = s->mb_num - 1; i >= 0; i--) { |
||
| 1005 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1006 | int error = s->error_status_table[mb_xy]; |
||
| 1007 | |||
| 1008 | if (!s->mbskip_table[mb_xy]) // FIXME partition specific |
||
| 1009 | distance++; |
||
| 1010 | if (error & (1 << error_type)) |
||
| 1011 | distance = 0; |
||
| 1012 | |||
| 1013 | if (s->partitioned_frame) { |
||
| 1014 | if (distance < threshold_part[error_type - 1]) |
||
| 1015 | s->error_status_table[mb_xy] |= 1 << error_type; |
||
| 1016 | } else { |
||
| 1017 | if (distance < threshold) |
||
| 1018 | s->error_status_table[mb_xy] |= 1 << error_type; |
||
| 1019 | } |
||
| 1020 | |||
| 1021 | if (error & VP_START) |
||
| 1022 | distance = 9999999; |
||
| 1023 | } |
||
| 1024 | } |
||
| 1025 | #endif |
||
| 1026 | |||
| 1027 | /* forward mark errors */ |
||
| 1028 | error = 0; |
||
| 1029 | for (i = 0; i < s->mb_num; i++) { |
||
| 1030 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1031 | int old_error = s->error_status_table[mb_xy]; |
||
| 1032 | |||
| 1033 | if (old_error & VP_START) { |
||
| 1034 | error = old_error & ER_MB_ERROR; |
||
| 1035 | } else { |
||
| 1036 | error |= old_error & ER_MB_ERROR; |
||
| 1037 | s->error_status_table[mb_xy] |= error; |
||
| 1038 | } |
||
| 1039 | } |
||
| 1040 | #if 1 |
||
| 1041 | /* handle not partitioned case */ |
||
| 1042 | if (!s->partitioned_frame) { |
||
| 1043 | for (i = 0; i < s->mb_num; i++) { |
||
| 1044 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1045 | error = s->error_status_table[mb_xy]; |
||
| 1046 | if (error & ER_MB_ERROR) |
||
| 1047 | error |= ER_MB_ERROR; |
||
| 1048 | s->error_status_table[mb_xy] = error; |
||
| 1049 | } |
||
| 1050 | } |
||
| 1051 | #endif |
||
| 1052 | |||
| 1053 | dc_error = ac_error = mv_error = 0; |
||
| 1054 | for (i = 0; i < s->mb_num; i++) { |
||
| 1055 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1056 | error = s->error_status_table[mb_xy]; |
||
| 1057 | if (error & ER_DC_ERROR) |
||
| 1058 | dc_error++; |
||
| 1059 | if (error & ER_AC_ERROR) |
||
| 1060 | ac_error++; |
||
| 1061 | if (error & ER_MV_ERROR) |
||
| 1062 | mv_error++; |
||
| 1063 | } |
||
| 1064 | av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n", |
||
| 1065 | dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic->f.pict_type)); |
||
| 1066 | |||
| 1067 | is_intra_likely = is_intra_more_likely(s); |
||
| 1068 | |||
| 1069 | /* set unknown mb-type to most likely */ |
||
| 1070 | for (i = 0; i < s->mb_num; i++) { |
||
| 1071 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1072 | error = s->error_status_table[mb_xy]; |
||
| 1073 | if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) |
||
| 1074 | continue; |
||
| 1075 | |||
| 1076 | if (is_intra_likely) |
||
| 1077 | s->cur_pic->mb_type[mb_xy] = MB_TYPE_INTRA4x4; |
||
| 1078 | else |
||
| 1079 | s->cur_pic->mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0; |
||
| 1080 | } |
||
| 1081 | |||
| 1082 | // change inter to intra blocks if no reference frames are available |
||
| 1083 | if (!(s->last_pic && s->last_pic->f.data[0]) && |
||
| 1084 | !(s->next_pic && s->next_pic->f.data[0])) |
||
| 1085 | for (i = 0; i < s->mb_num; i++) { |
||
| 1086 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1087 | if (!IS_INTRA(s->cur_pic->mb_type[mb_xy])) |
||
| 1088 | s->cur_pic->mb_type[mb_xy] = MB_TYPE_INTRA4x4; |
||
| 1089 | } |
||
| 1090 | |||
| 1091 | /* handle inter blocks with damaged AC */ |
||
| 1092 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 1093 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 1094 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 1095 | const int mb_type = s->cur_pic->mb_type[mb_xy]; |
||
| 1096 | const int dir = !(s->last_pic && s->last_pic->f.data[0]); |
||
| 1097 | const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD; |
||
| 1098 | int mv_type; |
||
| 1099 | |||
| 1100 | error = s->error_status_table[mb_xy]; |
||
| 1101 | |||
| 1102 | if (IS_INTRA(mb_type)) |
||
| 1103 | continue; // intra |
||
| 1104 | if (error & ER_MV_ERROR) |
||
| 1105 | continue; // inter with damaged MV |
||
| 1106 | if (!(error & ER_AC_ERROR)) |
||
| 1107 | continue; // undamaged inter |
||
| 1108 | |||
| 1109 | if (IS_8X8(mb_type)) { |
||
| 1110 | int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride; |
||
| 1111 | int j; |
||
| 1112 | mv_type = MV_TYPE_8X8; |
||
| 1113 | for (j = 0; j < 4; j++) { |
||
| 1114 | s->mv[0][j][0] = s->cur_pic->motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0]; |
||
| 1115 | s->mv[0][j][1] = s->cur_pic->motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1]; |
||
| 1116 | } |
||
| 1117 | } else { |
||
| 1118 | mv_type = MV_TYPE_16X16; |
||
| 1119 | s->mv[0][0][0] = s->cur_pic->motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0]; |
||
| 1120 | s->mv[0][0][1] = s->cur_pic->motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1]; |
||
| 1121 | } |
||
| 1122 | |||
| 1123 | s->decode_mb(s->opaque, 0 /* FIXME h264 partitioned slices need this set */, |
||
| 1124 | mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0); |
||
| 1125 | } |
||
| 1126 | } |
||
| 1127 | |||
| 1128 | /* guess MVs */ |
||
| 1129 | if (s->cur_pic->f.pict_type == AV_PICTURE_TYPE_B) { |
||
| 1130 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 1131 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 1132 | int xy = mb_x * 2 + mb_y * 2 * s->b8_stride; |
||
| 1133 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 1134 | const int mb_type = s->cur_pic->mb_type[mb_xy]; |
||
| 1135 | int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; |
||
| 1136 | |||
| 1137 | error = s->error_status_table[mb_xy]; |
||
| 1138 | |||
| 1139 | if (IS_INTRA(mb_type)) |
||
| 1140 | continue; |
||
| 1141 | if (!(error & ER_MV_ERROR)) |
||
| 1142 | continue; // inter with undamaged MV |
||
| 1143 | if (!(error & ER_AC_ERROR)) |
||
| 1144 | continue; // undamaged inter |
||
| 1145 | |||
| 1146 | if (!(s->last_pic && s->last_pic->f.data[0])) |
||
| 1147 | mv_dir &= ~MV_DIR_FORWARD; |
||
| 1148 | if (!(s->next_pic && s->next_pic->f.data[0])) |
||
| 1149 | mv_dir &= ~MV_DIR_BACKWARD; |
||
| 1150 | |||
| 1151 | if (s->pp_time) { |
||
| 1152 | int time_pp = s->pp_time; |
||
| 1153 | int time_pb = s->pb_time; |
||
| 1154 | |||
| 1155 | av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264); |
||
| 1156 | ff_thread_await_progress(&s->next_pic->tf, mb_y, 0); |
||
| 1157 | |||
| 1158 | s->mv[0][0][0] = s->next_pic->motion_val[0][xy][0] * time_pb / time_pp; |
||
| 1159 | s->mv[0][0][1] = s->next_pic->motion_val[0][xy][1] * time_pb / time_pp; |
||
| 1160 | s->mv[1][0][0] = s->next_pic->motion_val[0][xy][0] * (time_pb - time_pp) / time_pp; |
||
| 1161 | s->mv[1][0][1] = s->next_pic->motion_val[0][xy][1] * (time_pb - time_pp) / time_pp; |
||
| 1162 | } else { |
||
| 1163 | s->mv[0][0][0] = 0; |
||
| 1164 | s->mv[0][0][1] = 0; |
||
| 1165 | s->mv[1][0][0] = 0; |
||
| 1166 | s->mv[1][0][1] = 0; |
||
| 1167 | } |
||
| 1168 | |||
| 1169 | s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, |
||
| 1170 | mb_x, mb_y, 0, 0); |
||
| 1171 | } |
||
| 1172 | } |
||
| 1173 | } else |
||
| 1174 | guess_mv(s); |
||
| 1175 | |||
| 1176 | /* the filters below are not XvMC compatible, skip them */ |
||
| 1177 | if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) |
||
| 1178 | goto ec_clean; |
||
| 1179 | /* fill DC for inter blocks */ |
||
| 1180 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 1181 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 1182 | int dc, dcu, dcv, y, n; |
||
| 1183 | int16_t *dc_ptr; |
||
| 1184 | uint8_t *dest_y, *dest_cb, *dest_cr; |
||
| 1185 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 1186 | const int mb_type = s->cur_pic->mb_type[mb_xy]; |
||
| 1187 | |||
| 1188 | error = s->error_status_table[mb_xy]; |
||
| 1189 | |||
| 1190 | if (IS_INTRA(mb_type) && s->partitioned_frame) |
||
| 1191 | continue; |
||
| 1192 | // if (error & ER_MV_ERROR) |
||
| 1193 | // continue; // inter data damaged FIXME is this good? |
||
| 1194 | |||
| 1195 | dest_y = s->cur_pic->f.data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; |
||
| 1196 | dest_cb = s->cur_pic->f.data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; |
||
| 1197 | dest_cr = s->cur_pic->f.data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; |
||
| 1198 | |||
| 1199 | dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride]; |
||
| 1200 | for (n = 0; n < 4; n++) { |
||
| 1201 | dc = 0; |
||
| 1202 | for (y = 0; y < 8; y++) { |
||
| 1203 | int x; |
||
| 1204 | for (x = 0; x < 8; x++) |
||
| 1205 | dc += dest_y[x + (n & 1) * 8 + |
||
| 1206 | (y + (n >> 1) * 8) * linesize[0]]; |
||
| 1207 | } |
||
| 1208 | dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3; |
||
| 1209 | } |
||
| 1210 | |||
| 1211 | dcu = dcv = 0; |
||
| 1212 | for (y = 0; y < 8; y++) { |
||
| 1213 | int x; |
||
| 1214 | for (x = 0; x < 8; x++) { |
||
| 1215 | dcu += dest_cb[x + y * linesize[1]]; |
||
| 1216 | dcv += dest_cr[x + y * linesize[2]]; |
||
| 1217 | } |
||
| 1218 | } |
||
| 1219 | s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3; |
||
| 1220 | s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3; |
||
| 1221 | } |
||
| 1222 | } |
||
| 1223 | #if 1 |
||
| 1224 | /* guess DC for damaged blocks */ |
||
| 1225 | guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1); |
||
| 1226 | guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0); |
||
| 1227 | guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0); |
||
| 1228 | #endif |
||
| 1229 | |||
| 1230 | /* filter luma DC */ |
||
| 1231 | filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride); |
||
| 1232 | |||
| 1233 | #if 1 |
||
| 1234 | /* render DC only intra */ |
||
| 1235 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { |
||
| 1236 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
||
| 1237 | uint8_t *dest_y, *dest_cb, *dest_cr; |
||
| 1238 | const int mb_xy = mb_x + mb_y * s->mb_stride; |
||
| 1239 | const int mb_type = s->cur_pic->mb_type[mb_xy]; |
||
| 1240 | |||
| 1241 | error = s->error_status_table[mb_xy]; |
||
| 1242 | |||
| 1243 | if (IS_INTER(mb_type)) |
||
| 1244 | continue; |
||
| 1245 | if (!(error & ER_AC_ERROR)) |
||
| 1246 | continue; // undamaged |
||
| 1247 | |||
| 1248 | dest_y = s->cur_pic->f.data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; |
||
| 1249 | dest_cb = s->cur_pic->f.data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; |
||
| 1250 | dest_cr = s->cur_pic->f.data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; |
||
| 1251 | |||
| 1252 | put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y); |
||
| 1253 | } |
||
| 1254 | } |
||
| 1255 | #endif |
||
| 1256 | |||
| 1257 | if (s->avctx->error_concealment & FF_EC_DEBLOCK) { |
||
| 1258 | /* filter horizontal block boundaries */ |
||
| 1259 | h_block_filter(s, s->cur_pic->f.data[0], s->mb_width * 2, |
||
| 1260 | s->mb_height * 2, linesize[0], 1); |
||
| 1261 | h_block_filter(s, s->cur_pic->f.data[1], s->mb_width, |
||
| 1262 | s->mb_height, linesize[1], 0); |
||
| 1263 | h_block_filter(s, s->cur_pic->f.data[2], s->mb_width, |
||
| 1264 | s->mb_height, linesize[2], 0); |
||
| 1265 | |||
| 1266 | /* filter vertical block boundaries */ |
||
| 1267 | v_block_filter(s, s->cur_pic->f.data[0], s->mb_width * 2, |
||
| 1268 | s->mb_height * 2, linesize[0], 1); |
||
| 1269 | v_block_filter(s, s->cur_pic->f.data[1], s->mb_width, |
||
| 1270 | s->mb_height, linesize[1], 0); |
||
| 1271 | v_block_filter(s, s->cur_pic->f.data[2], s->mb_width, |
||
| 1272 | s->mb_height, linesize[2], 0); |
||
| 1273 | } |
||
| 1274 | |||
| 1275 | ec_clean: |
||
| 1276 | /* clean a few tables */ |
||
| 1277 | for (i = 0; i < s->mb_num; i++) { |
||
| 1278 | const int mb_xy = s->mb_index2xy[i]; |
||
| 1279 | int error = s->error_status_table[mb_xy]; |
||
| 1280 | |||
| 1281 | if (s->cur_pic->f.pict_type != AV_PICTURE_TYPE_B && |
||
| 1282 | (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) { |
||
| 1283 | s->mbskip_table[mb_xy] = 0; |
||
| 1284 | } |
||
| 1285 | s->mbintra_table[mb_xy] = 1; |
||
| 1286 | } |
||
| 1287 | s->cur_pic = NULL; |
||
| 1288 | s->next_pic = NULL; |
||
| 1289 | s->last_pic = NULL; |
||
| 1290 | } |