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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * RV30/40 decoder common data |
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| 3 | * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * @file |
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| 24 | * RV30/40 decoder common data |
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| 25 | */ |
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| 26 | |||
| 27 | #include "libavutil/imgutils.h" |
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| 28 | #include "libavutil/internal.h" |
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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 "golomb.h" |
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| 34 | #include "internal.h" |
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| 35 | #include "mathops.h" |
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| 36 | #include "rectangle.h" |
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| 37 | #include "thread.h" |
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| 38 | |||
| 39 | #include "rv34vlc.h" |
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| 40 | #include "rv34data.h" |
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| 41 | #include "rv34.h" |
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| 42 | |||
| 43 | static inline void ZERO8x2(void* dst, int stride) |
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| 44 | { |
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| 45 | fill_rectangle(dst, 1, 2, stride, 0, 4); |
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| 46 | fill_rectangle(((uint8_t*)(dst))+4, 1, 2, stride, 0, 4); |
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| 47 | } |
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| 48 | |||
| 49 | /** translation of RV30/40 macroblock types to lavc ones */ |
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| 50 | static const int rv34_mb_type_to_lavc[12] = { |
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| 51 | MB_TYPE_INTRA, |
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| 52 | MB_TYPE_INTRA16x16 | MB_TYPE_SEPARATE_DC, |
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| 53 | MB_TYPE_16x16 | MB_TYPE_L0, |
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| 54 | MB_TYPE_8x8 | MB_TYPE_L0, |
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| 55 | MB_TYPE_16x16 | MB_TYPE_L0, |
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| 56 | MB_TYPE_16x16 | MB_TYPE_L1, |
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| 57 | MB_TYPE_SKIP, |
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| 58 | MB_TYPE_DIRECT2 | MB_TYPE_16x16, |
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| 59 | MB_TYPE_16x8 | MB_TYPE_L0, |
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| 60 | MB_TYPE_8x16 | MB_TYPE_L0, |
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| 61 | MB_TYPE_16x16 | MB_TYPE_L0L1, |
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| 62 | MB_TYPE_16x16 | MB_TYPE_L0 | MB_TYPE_SEPARATE_DC |
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| 63 | }; |
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| 64 | |||
| 65 | |||
| 66 | static RV34VLC intra_vlcs[NUM_INTRA_TABLES], inter_vlcs[NUM_INTER_TABLES]; |
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| 67 | |||
| 68 | static int rv34_decode_mv(RV34DecContext *r, int block_type); |
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| 69 | |||
| 70 | /** |
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| 71 | * @name RV30/40 VLC generating functions |
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| 72 | * @{ |
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| 73 | */ |
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| 74 | |||
| 75 | static const int table_offs[] = { |
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| 76 | 0, 1818, 3622, 4144, 4698, 5234, 5804, 5868, 5900, 5932, |
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| 77 | 5996, 6252, 6316, 6348, 6380, 7674, 8944, 10274, 11668, 12250, |
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| 78 | 14060, 15846, 16372, 16962, 17512, 18148, 18180, 18212, 18244, 18308, |
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| 79 | 18564, 18628, 18660, 18692, 20036, 21314, 22648, 23968, 24614, 26384, |
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| 80 | 28190, 28736, 29366, 29938, 30608, 30640, 30672, 30704, 30768, 31024, |
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| 81 | 31088, 31120, 31184, 32570, 33898, 35236, 36644, 37286, 39020, 40802, |
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| 82 | 41368, 42052, 42692, 43348, 43380, 43412, 43444, 43476, 43604, 43668, |
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| 83 | 43700, 43732, 45100, 46430, 47778, 49160, 49802, 51550, 53340, 53972, |
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| 84 | 54648, 55348, 55994, 56122, 56154, 56186, 56218, 56346, 56410, 56442, |
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| 85 | 56474, 57878, 59290, 60636, 62036, 62682, 64460, 64524, 64588, 64716, |
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| 86 | 64844, 66076, 67466, 67978, 68542, 69064, 69648, 70296, 72010, 72074, |
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| 87 | 72138, 72202, 72330, 73572, 74936, 75454, 76030, 76566, 77176, 77822, |
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| 88 | 79582, 79646, 79678, 79742, 79870, 81180, 82536, 83064, 83672, 84242, |
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| 89 | 84934, 85576, 87384, 87448, 87480, 87544, 87672, 88982, 90340, 90902, |
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| 90 | 91598, 92182, 92846, 93488, 95246, 95278, 95310, 95374, 95502, 96878, |
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| 91 | 98266, 98848, 99542, 100234, 100884, 101524, 103320, 103352, 103384, 103416, |
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| 92 | 103480, 104874, 106222, 106910, 107584, 108258, 108902, 109544, 111366, 111398, |
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| 93 | 111430, 111462, 111494, 112878, 114320, 114988, 115660, 116310, 116950, 117592 |
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| 94 | }; |
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| 95 | |||
| 96 | static VLC_TYPE table_data[117592][2]; |
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| 97 | |||
| 98 | /** |
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| 99 | * Generate VLC from codeword lengths. |
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| 100 | * @param bits codeword lengths (zeroes are accepted) |
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| 101 | * @param size length of input data |
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| 102 | * @param vlc output VLC |
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| 103 | * @param insyms symbols for input codes (NULL for default ones) |
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| 104 | * @param num VLC table number (for static initialization) |
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| 105 | */ |
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| 106 | static void rv34_gen_vlc(const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms, |
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| 107 | const int num) |
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| 108 | { |
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| 109 | int i; |
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| 110 | int counts[17] = {0}, codes[17]; |
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| 111 | uint16_t cw[MAX_VLC_SIZE], syms[MAX_VLC_SIZE]; |
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| 112 | uint8_t bits2[MAX_VLC_SIZE]; |
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| 113 | int maxbits = 0, realsize = 0; |
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| 114 | |||
| 115 | for(i = 0; i < size; i++){ |
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| 116 | if(bits[i]){ |
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| 117 | bits2[realsize] = bits[i]; |
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| 118 | syms[realsize] = insyms ? insyms[i] : i; |
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| 119 | realsize++; |
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| 120 | maxbits = FFMAX(maxbits, bits[i]); |
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| 121 | counts[bits[i]]++; |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | codes[0] = 0; |
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| 126 | for(i = 0; i < 16; i++) |
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| 127 | codes[i+1] = (codes[i] + counts[i]) << 1; |
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| 128 | for(i = 0; i < realsize; i++) |
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| 129 | cw[i] = codes[bits2[i]]++; |
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| 130 | |||
| 131 | vlc->table = &table_data[table_offs[num]]; |
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| 132 | vlc->table_allocated = table_offs[num + 1] - table_offs[num]; |
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| 133 | ff_init_vlc_sparse(vlc, FFMIN(maxbits, 9), realsize, |
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| 134 | bits2, 1, 1, |
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| 135 | cw, 2, 2, |
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| 136 | syms, 2, 2, INIT_VLC_USE_NEW_STATIC); |
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| 137 | } |
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| 138 | |||
| 139 | /** |
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| 140 | * Initialize all tables. |
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| 141 | */ |
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| 142 | static av_cold void rv34_init_tables(void) |
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| 143 | { |
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| 144 | int i, j, k; |
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| 145 | |||
| 146 | for(i = 0; i < NUM_INTRA_TABLES; i++){ |
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| 147 | for(j = 0; j < 2; j++){ |
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| 148 | rv34_gen_vlc(rv34_table_intra_cbppat [i][j], CBPPAT_VLC_SIZE, &intra_vlcs[i].cbppattern[j], NULL, 19*i + 0 + j); |
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| 149 | rv34_gen_vlc(rv34_table_intra_secondpat[i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].second_pattern[j], NULL, 19*i + 2 + j); |
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| 150 | rv34_gen_vlc(rv34_table_intra_thirdpat [i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].third_pattern[j], NULL, 19*i + 4 + j); |
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| 151 | for(k = 0; k < 4; k++){ |
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| 152 | rv34_gen_vlc(rv34_table_intra_cbp[i][j+k*2], CBP_VLC_SIZE, &intra_vlcs[i].cbp[j][k], rv34_cbp_code, 19*i + 6 + j*4 + k); |
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| 153 | } |
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| 154 | } |
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| 155 | for(j = 0; j < 4; j++){ |
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| 156 | rv34_gen_vlc(rv34_table_intra_firstpat[i][j], FIRSTBLK_VLC_SIZE, &intra_vlcs[i].first_pattern[j], NULL, 19*i + 14 + j); |
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| 157 | } |
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| 158 | rv34_gen_vlc(rv34_intra_coeff[i], COEFF_VLC_SIZE, &intra_vlcs[i].coefficient, NULL, 19*i + 18); |
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| 159 | } |
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| 160 | |||
| 161 | for(i = 0; i < NUM_INTER_TABLES; i++){ |
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| 162 | rv34_gen_vlc(rv34_inter_cbppat[i], CBPPAT_VLC_SIZE, &inter_vlcs[i].cbppattern[0], NULL, i*12 + 95); |
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| 163 | for(j = 0; j < 4; j++){ |
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| 164 | rv34_gen_vlc(rv34_inter_cbp[i][j], CBP_VLC_SIZE, &inter_vlcs[i].cbp[0][j], rv34_cbp_code, i*12 + 96 + j); |
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| 165 | } |
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| 166 | for(j = 0; j < 2; j++){ |
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| 167 | rv34_gen_vlc(rv34_table_inter_firstpat [i][j], FIRSTBLK_VLC_SIZE, &inter_vlcs[i].first_pattern[j], NULL, i*12 + 100 + j); |
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| 168 | rv34_gen_vlc(rv34_table_inter_secondpat[i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].second_pattern[j], NULL, i*12 + 102 + j); |
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| 169 | rv34_gen_vlc(rv34_table_inter_thirdpat [i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].third_pattern[j], NULL, i*12 + 104 + j); |
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| 170 | } |
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| 171 | rv34_gen_vlc(rv34_inter_coeff[i], COEFF_VLC_SIZE, &inter_vlcs[i].coefficient, NULL, i*12 + 106); |
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| 172 | } |
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| 173 | } |
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| 174 | |||
| 175 | /** @} */ // vlc group |
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| 176 | |||
| 177 | /** |
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| 178 | * @name RV30/40 4x4 block decoding functions |
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| 179 | * @{ |
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| 180 | */ |
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| 181 | |||
| 182 | /** |
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| 183 | * Decode coded block pattern. |
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| 184 | */ |
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| 185 | static int rv34_decode_cbp(GetBitContext *gb, RV34VLC *vlc, int table) |
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| 186 | { |
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| 187 | int pattern, code, cbp=0; |
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| 188 | int ones; |
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| 189 | static const int cbp_masks[3] = {0x100000, 0x010000, 0x110000}; |
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| 190 | static const int shifts[4] = { 0, 2, 8, 10 }; |
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| 191 | const int *curshift = shifts; |
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| 192 | int i, t, mask; |
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| 193 | |||
| 194 | code = get_vlc2(gb, vlc->cbppattern[table].table, 9, 2); |
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| 195 | pattern = code & 0xF; |
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| 196 | code >>= 4; |
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| 197 | |||
| 198 | ones = rv34_count_ones[pattern]; |
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| 199 | |||
| 200 | for(mask = 8; mask; mask >>= 1, curshift++){ |
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| 201 | if(pattern & mask) |
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| 202 | cbp |= get_vlc2(gb, vlc->cbp[table][ones].table, vlc->cbp[table][ones].bits, 1) << curshift[0]; |
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| 203 | } |
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| 204 | |||
| 205 | for(i = 0; i < 4; i++){ |
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| 206 | t = (modulo_three_table[code] >> (6 - 2*i)) & 3; |
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| 207 | if(t == 1) |
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| 208 | cbp |= cbp_masks[get_bits1(gb)] << i; |
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| 209 | if(t == 2) |
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| 210 | cbp |= cbp_masks[2] << i; |
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| 211 | } |
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| 212 | return cbp; |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * Get one coefficient value from the bitstream and store it. |
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| 217 | */ |
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| 218 | static inline void decode_coeff(int16_t *dst, int coef, int esc, GetBitContext *gb, VLC* vlc, int q) |
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| 219 | { |
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| 220 | if(coef){ |
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| 221 | if(coef == esc){ |
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| 222 | coef = get_vlc2(gb, vlc->table, 9, 2); |
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| 223 | if(coef > 23){ |
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| 224 | coef -= 23; |
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| 225 | coef = 22 + ((1 << coef) | get_bits(gb, coef)); |
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| 226 | } |
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| 227 | coef += esc; |
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| 228 | } |
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| 229 | if(get_bits1(gb)) |
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| 230 | coef = -coef; |
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| 231 | *dst = (coef*q + 8) >> 4; |
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| 232 | } |
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| 233 | } |
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| 234 | |||
| 235 | /** |
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| 236 | * Decode 2x2 subblock of coefficients. |
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| 237 | */ |
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| 238 | static inline void decode_subblock(int16_t *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q) |
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| 239 | { |
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| 240 | int flags = modulo_three_table[code]; |
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| 241 | |||
| 242 | decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q); |
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| 243 | if(is_block2){ |
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| 244 | decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q); |
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| 245 | decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q); |
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| 246 | }else{ |
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| 247 | decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q); |
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| 248 | decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q); |
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| 249 | } |
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| 250 | decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q); |
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| 251 | } |
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| 252 | |||
| 253 | /** |
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| 254 | * Decode a single coefficient. |
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| 255 | */ |
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| 256 | static inline void decode_subblock1(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q) |
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| 257 | { |
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| 258 | int coeff = modulo_three_table[code] >> 6; |
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| 259 | decode_coeff(dst, coeff, 3, gb, vlc, q); |
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| 260 | } |
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| 261 | |||
| 262 | static inline void decode_subblock3(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, |
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| 263 | int q_dc, int q_ac1, int q_ac2) |
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| 264 | { |
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| 265 | int flags = modulo_three_table[code]; |
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| 266 | |||
| 267 | decode_coeff(dst+0*4+0, (flags >> 6) , 3, gb, vlc, q_dc); |
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| 268 | decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1); |
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| 269 | decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q_ac1); |
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| 270 | decode_coeff(dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q_ac2); |
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| 271 | } |
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| 272 | |||
| 273 | /** |
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| 274 | * Decode coefficients for 4x4 block. |
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| 275 | * |
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| 276 | * This is done by filling 2x2 subblocks with decoded coefficients |
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| 277 | * in this order (the same for subblocks and subblock coefficients): |
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| 278 | * o--o |
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| 279 | * / |
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| 280 | * / |
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| 281 | * o--o |
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| 282 | */ |
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| 283 | |||
| 284 | static int rv34_decode_block(int16_t *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2) |
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| 285 | { |
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| 286 | int code, pattern, has_ac = 1; |
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| 287 | |||
| 288 | code = get_vlc2(gb, rvlc->first_pattern[fc].table, 9, 2); |
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| 289 | |||
| 290 | pattern = code & 0x7; |
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| 291 | |||
| 292 | code >>= 3; |
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| 293 | |||
| 294 | if (modulo_three_table[code] & 0x3F) { |
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| 295 | decode_subblock3(dst, code, gb, &rvlc->coefficient, q_dc, q_ac1, q_ac2); |
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| 296 | } else { |
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| 297 | decode_subblock1(dst, code, gb, &rvlc->coefficient, q_dc); |
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| 298 | if (!pattern) |
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| 299 | return 0; |
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| 300 | has_ac = 0; |
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| 301 | } |
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| 302 | |||
| 303 | if(pattern & 4){ |
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| 304 | code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); |
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| 305 | decode_subblock(dst + 4*0+2, code, 0, gb, &rvlc->coefficient, q_ac2); |
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| 306 | } |
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| 307 | if(pattern & 2){ // Looks like coefficients 1 and 2 are swapped for this block |
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| 308 | code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); |
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| 309 | decode_subblock(dst + 4*2+0, code, 1, gb, &rvlc->coefficient, q_ac2); |
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| 310 | } |
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| 311 | if(pattern & 1){ |
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| 312 | code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2); |
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| 313 | decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2); |
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| 314 | } |
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| 315 | return has_ac | pattern; |
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| 316 | } |
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| 317 | |||
| 318 | /** |
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| 319 | * @name RV30/40 bitstream parsing |
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| 320 | * @{ |
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| 321 | */ |
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| 322 | |||
| 323 | /** |
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| 324 | * Decode starting slice position. |
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| 325 | * @todo Maybe replace with ff_h263_decode_mba() ? |
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| 326 | */ |
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| 327 | int ff_rv34_get_start_offset(GetBitContext *gb, int mb_size) |
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| 328 | { |
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| 329 | int i; |
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| 330 | for(i = 0; i < 5; i++) |
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| 331 | if(rv34_mb_max_sizes[i] >= mb_size - 1) |
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| 332 | break; |
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| 333 | return rv34_mb_bits_sizes[i]; |
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| 334 | } |
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| 335 | |||
| 336 | /** |
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| 337 | * Select VLC set for decoding from current quantizer, modifier and frame type. |
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| 338 | */ |
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| 339 | static inline RV34VLC* choose_vlc_set(int quant, int mod, int type) |
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| 340 | { |
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| 341 | if(mod == 2 && quant < 19) quant += 10; |
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| 342 | else if(mod && quant < 26) quant += 5; |
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| 343 | return type ? &inter_vlcs[rv34_quant_to_vlc_set[1][av_clip(quant, 0, 30)]] |
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| 344 | : &intra_vlcs[rv34_quant_to_vlc_set[0][av_clip(quant, 0, 30)]]; |
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| 345 | } |
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| 346 | |||
| 347 | /** |
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| 348 | * Decode intra macroblock header and return CBP in case of success, -1 otherwise. |
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| 349 | */ |
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| 350 | static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types) |
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| 351 | { |
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| 352 | MpegEncContext *s = &r->s; |
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| 353 | GetBitContext *gb = &s->gb; |
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| 354 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
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| 355 | int t; |
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| 356 | |||
| 357 | r->is16 = get_bits1(gb); |
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| 358 | if(r->is16){ |
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| 359 | s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA16x16; |
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| 360 | r->block_type = RV34_MB_TYPE_INTRA16x16; |
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| 361 | t = get_bits(gb, 2); |
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| 362 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); |
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| 363 | r->luma_vlc = 2; |
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| 364 | }else{ |
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| 365 | if(!r->rv30){ |
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| 366 | if(!get_bits1(gb)) |
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| 367 | av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n"); |
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| 368 | } |
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| 369 | s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA; |
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| 370 | r->block_type = RV34_MB_TYPE_INTRA; |
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| 371 | if(r->decode_intra_types(r, gb, intra_types) < 0) |
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| 372 | return -1; |
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| 373 | r->luma_vlc = 1; |
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| 374 | } |
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| 375 | |||
| 376 | r->chroma_vlc = 0; |
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| 377 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); |
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| 378 | |||
| 379 | return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); |
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| 380 | } |
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| 381 | |||
| 382 | /** |
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| 383 | * Decode inter macroblock header and return CBP in case of success, -1 otherwise. |
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| 384 | */ |
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| 385 | static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types) |
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| 386 | { |
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| 387 | MpegEncContext *s = &r->s; |
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| 388 | GetBitContext *gb = &s->gb; |
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| 389 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
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| 390 | int i, t; |
||
| 391 | |||
| 392 | r->block_type = r->decode_mb_info(r); |
||
| 393 | if(r->block_type == -1) |
||
| 394 | return -1; |
||
| 395 | s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type]; |
||
| 396 | r->mb_type[mb_pos] = r->block_type; |
||
| 397 | if(r->block_type == RV34_MB_SKIP){ |
||
| 398 | if(s->pict_type == AV_PICTURE_TYPE_P) |
||
| 399 | r->mb_type[mb_pos] = RV34_MB_P_16x16; |
||
| 400 | if(s->pict_type == AV_PICTURE_TYPE_B) |
||
| 401 | r->mb_type[mb_pos] = RV34_MB_B_DIRECT; |
||
| 402 | } |
||
| 403 | r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]); |
||
| 404 | rv34_decode_mv(r, r->block_type); |
||
| 405 | if(r->block_type == RV34_MB_SKIP){ |
||
| 406 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0])); |
||
| 407 | return 0; |
||
| 408 | } |
||
| 409 | r->chroma_vlc = 1; |
||
| 410 | r->luma_vlc = 0; |
||
| 411 | |||
| 412 | if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ |
||
| 413 | if(r->is16){ |
||
| 414 | t = get_bits(gb, 2); |
||
| 415 | fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); |
||
| 416 | r->luma_vlc = 2; |
||
| 417 | }else{ |
||
| 418 | if(r->decode_intra_types(r, gb, intra_types) < 0) |
||
| 419 | return -1; |
||
| 420 | r->luma_vlc = 1; |
||
| 421 | } |
||
| 422 | r->chroma_vlc = 0; |
||
| 423 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); |
||
| 424 | }else{ |
||
| 425 | for(i = 0; i < 16; i++) |
||
| 426 | intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0; |
||
| 427 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); |
||
| 428 | if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){ |
||
| 429 | r->is16 = 1; |
||
| 430 | r->chroma_vlc = 1; |
||
| 431 | r->luma_vlc = 2; |
||
| 432 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); |
||
| 433 | } |
||
| 434 | } |
||
| 435 | |||
| 436 | return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); |
||
| 437 | } |
||
| 438 | |||
| 439 | /** @} */ //bitstream functions |
||
| 440 | |||
| 441 | /** |
||
| 442 | * @name motion vector related code (prediction, reconstruction, motion compensation) |
||
| 443 | * @{ |
||
| 444 | */ |
||
| 445 | |||
| 446 | /** macroblock partition width in 8x8 blocks */ |
||
| 447 | static const uint8_t part_sizes_w[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 }; |
||
| 448 | |||
| 449 | /** macroblock partition height in 8x8 blocks */ |
||
| 450 | static const uint8_t part_sizes_h[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 }; |
||
| 451 | |||
| 452 | /** availability index for subblocks */ |
||
| 453 | static const uint8_t avail_indexes[4] = { 6, 7, 10, 11 }; |
||
| 454 | |||
| 455 | /** |
||
| 456 | * motion vector prediction |
||
| 457 | * |
||
| 458 | * Motion prediction performed for the block by using median prediction of |
||
| 459 | * motion vectors from the left, top and right top blocks but in corner cases |
||
| 460 | * some other vectors may be used instead. |
||
| 461 | */ |
||
| 462 | static void rv34_pred_mv(RV34DecContext *r, int block_type, int subblock_no, int dmv_no) |
||
| 463 | { |
||
| 464 | MpegEncContext *s = &r->s; |
||
| 465 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; |
||
| 466 | int A[2] = {0}, B[2], C[2]; |
||
| 467 | int i, j; |
||
| 468 | int mx, my; |
||
| 469 | int* avail = r->avail_cache + avail_indexes[subblock_no]; |
||
| 470 | int c_off = part_sizes_w[block_type]; |
||
| 471 | |||
| 472 | mv_pos += (subblock_no & 1) + (subblock_no >> 1)*s->b8_stride; |
||
| 473 | if(subblock_no == 3) |
||
| 474 | c_off = -1; |
||
| 475 | |||
| 476 | if(avail[-1]){ |
||
| 477 | A[0] = s->current_picture_ptr->motion_val[0][mv_pos-1][0]; |
||
| 478 | A[1] = s->current_picture_ptr->motion_val[0][mv_pos-1][1]; |
||
| 479 | } |
||
| 480 | if(avail[-4]){ |
||
| 481 | B[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][0]; |
||
| 482 | B[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][1]; |
||
| 483 | }else{ |
||
| 484 | B[0] = A[0]; |
||
| 485 | B[1] = A[1]; |
||
| 486 | } |
||
| 487 | if(!avail[c_off-4]){ |
||
| 488 | if(avail[-4] && (avail[-1] || r->rv30)){ |
||
| 489 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][0]; |
||
| 490 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][1]; |
||
| 491 | }else{ |
||
| 492 | C[0] = A[0]; |
||
| 493 | C[1] = A[1]; |
||
| 494 | } |
||
| 495 | }else{ |
||
| 496 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][0]; |
||
| 497 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][1]; |
||
| 498 | } |
||
| 499 | mx = mid_pred(A[0], B[0], C[0]); |
||
| 500 | my = mid_pred(A[1], B[1], C[1]); |
||
| 501 | mx += r->dmv[dmv_no][0]; |
||
| 502 | my += r->dmv[dmv_no][1]; |
||
| 503 | for(j = 0; j < part_sizes_h[block_type]; j++){ |
||
| 504 | for(i = 0; i < part_sizes_w[block_type]; i++){ |
||
| 505 | s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][0] = mx; |
||
| 506 | s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][1] = my; |
||
| 507 | } |
||
| 508 | } |
||
| 509 | } |
||
| 510 | |||
| 511 | #define GET_PTS_DIFF(a, b) ((a - b + 8192) & 0x1FFF) |
||
| 512 | |||
| 513 | /** |
||
| 514 | * Calculate motion vector component that should be added for direct blocks. |
||
| 515 | */ |
||
| 516 | static int calc_add_mv(RV34DecContext *r, int dir, int val) |
||
| 517 | { |
||
| 518 | int mul = dir ? -r->mv_weight2 : r->mv_weight1; |
||
| 519 | |||
| 520 | return (val * mul + 0x2000) >> 14; |
||
| 521 | } |
||
| 522 | |||
| 523 | /** |
||
| 524 | * Predict motion vector for B-frame macroblock. |
||
| 525 | */ |
||
| 526 | static inline void rv34_pred_b_vector(int A[2], int B[2], int C[2], |
||
| 527 | int A_avail, int B_avail, int C_avail, |
||
| 528 | int *mx, int *my) |
||
| 529 | { |
||
| 530 | if(A_avail + B_avail + C_avail != 3){ |
||
| 531 | *mx = A[0] + B[0] + C[0]; |
||
| 532 | *my = A[1] + B[1] + C[1]; |
||
| 533 | if(A_avail + B_avail + C_avail == 2){ |
||
| 534 | *mx /= 2; |
||
| 535 | *my /= 2; |
||
| 536 | } |
||
| 537 | }else{ |
||
| 538 | *mx = mid_pred(A[0], B[0], C[0]); |
||
| 539 | *my = mid_pred(A[1], B[1], C[1]); |
||
| 540 | } |
||
| 541 | } |
||
| 542 | |||
| 543 | /** |
||
| 544 | * motion vector prediction for B-frames |
||
| 545 | */ |
||
| 546 | static void rv34_pred_mv_b(RV34DecContext *r, int block_type, int dir) |
||
| 547 | { |
||
| 548 | MpegEncContext *s = &r->s; |
||
| 549 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
||
| 550 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; |
||
| 551 | int A[2] = { 0 }, B[2] = { 0 }, C[2] = { 0 }; |
||
| 552 | int has_A = 0, has_B = 0, has_C = 0; |
||
| 553 | int mx, my; |
||
| 554 | int i, j; |
||
| 555 | Picture *cur_pic = s->current_picture_ptr; |
||
| 556 | const int mask = dir ? MB_TYPE_L1 : MB_TYPE_L0; |
||
| 557 | int type = cur_pic->mb_type[mb_pos]; |
||
| 558 | |||
| 559 | if((r->avail_cache[6-1] & type) & mask){ |
||
| 560 | A[0] = cur_pic->motion_val[dir][mv_pos - 1][0]; |
||
| 561 | A[1] = cur_pic->motion_val[dir][mv_pos - 1][1]; |
||
| 562 | has_A = 1; |
||
| 563 | } |
||
| 564 | if((r->avail_cache[6-4] & type) & mask){ |
||
| 565 | B[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][0]; |
||
| 566 | B[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][1]; |
||
| 567 | has_B = 1; |
||
| 568 | } |
||
| 569 | if(r->avail_cache[6-4] && (r->avail_cache[6-2] & type) & mask){ |
||
| 570 | C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][0]; |
||
| 571 | C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][1]; |
||
| 572 | has_C = 1; |
||
| 573 | }else if((s->mb_x+1) == s->mb_width && (r->avail_cache[6-5] & type) & mask){ |
||
| 574 | C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][0]; |
||
| 575 | C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][1]; |
||
| 576 | has_C = 1; |
||
| 577 | } |
||
| 578 | |||
| 579 | rv34_pred_b_vector(A, B, C, has_A, has_B, has_C, &mx, &my); |
||
| 580 | |||
| 581 | mx += r->dmv[dir][0]; |
||
| 582 | my += r->dmv[dir][1]; |
||
| 583 | |||
| 584 | for(j = 0; j < 2; j++){ |
||
| 585 | for(i = 0; i < 2; i++){ |
||
| 586 | cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][0] = mx; |
||
| 587 | cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][1] = my; |
||
| 588 | } |
||
| 589 | } |
||
| 590 | if(block_type == RV34_MB_B_BACKWARD || block_type == RV34_MB_B_FORWARD){ |
||
| 591 | ZERO8x2(cur_pic->motion_val[!dir][mv_pos], s->b8_stride); |
||
| 592 | } |
||
| 593 | } |
||
| 594 | |||
| 595 | /** |
||
| 596 | * motion vector prediction - RV3 version |
||
| 597 | */ |
||
| 598 | static void rv34_pred_mv_rv3(RV34DecContext *r, int block_type, int dir) |
||
| 599 | { |
||
| 600 | MpegEncContext *s = &r->s; |
||
| 601 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; |
||
| 602 | int A[2] = {0}, B[2], C[2]; |
||
| 603 | int i, j, k; |
||
| 604 | int mx, my; |
||
| 605 | int* avail = r->avail_cache + avail_indexes[0]; |
||
| 606 | |||
| 607 | if(avail[-1]){ |
||
| 608 | A[0] = s->current_picture_ptr->motion_val[0][mv_pos - 1][0]; |
||
| 609 | A[1] = s->current_picture_ptr->motion_val[0][mv_pos - 1][1]; |
||
| 610 | } |
||
| 611 | if(avail[-4]){ |
||
| 612 | B[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][0]; |
||
| 613 | B[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][1]; |
||
| 614 | }else{ |
||
| 615 | B[0] = A[0]; |
||
| 616 | B[1] = A[1]; |
||
| 617 | } |
||
| 618 | if(!avail[-4 + 2]){ |
||
| 619 | if(avail[-4] && (avail[-1])){ |
||
| 620 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][0]; |
||
| 621 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][1]; |
||
| 622 | }else{ |
||
| 623 | C[0] = A[0]; |
||
| 624 | C[1] = A[1]; |
||
| 625 | } |
||
| 626 | }else{ |
||
| 627 | C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][0]; |
||
| 628 | C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][1]; |
||
| 629 | } |
||
| 630 | mx = mid_pred(A[0], B[0], C[0]); |
||
| 631 | my = mid_pred(A[1], B[1], C[1]); |
||
| 632 | mx += r->dmv[0][0]; |
||
| 633 | my += r->dmv[0][1]; |
||
| 634 | for(j = 0; j < 2; j++){ |
||
| 635 | for(i = 0; i < 2; i++){ |
||
| 636 | for(k = 0; k < 2; k++){ |
||
| 637 | s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][0] = mx; |
||
| 638 | s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][1] = my; |
||
| 639 | } |
||
| 640 | } |
||
| 641 | } |
||
| 642 | } |
||
| 643 | |||
| 644 | static const int chroma_coeffs[3] = { 0, 3, 5 }; |
||
| 645 | |||
| 646 | /** |
||
| 647 | * generic motion compensation function |
||
| 648 | * |
||
| 649 | * @param r decoder context |
||
| 650 | * @param block_type type of the current block |
||
| 651 | * @param xoff horizontal offset from the start of the current block |
||
| 652 | * @param yoff vertical offset from the start of the current block |
||
| 653 | * @param mv_off offset to the motion vector information |
||
| 654 | * @param width width of the current partition in 8x8 blocks |
||
| 655 | * @param height height of the current partition in 8x8 blocks |
||
| 656 | * @param dir motion compensation direction (i.e. from the last or the next reference frame) |
||
| 657 | * @param thirdpel motion vectors are specified in 1/3 of pixel |
||
| 658 | * @param qpel_mc a set of functions used to perform luma motion compensation |
||
| 659 | * @param chroma_mc a set of functions used to perform chroma motion compensation |
||
| 660 | */ |
||
| 661 | static inline void rv34_mc(RV34DecContext *r, const int block_type, |
||
| 662 | const int xoff, const int yoff, int mv_off, |
||
| 663 | const int width, const int height, int dir, |
||
| 664 | const int thirdpel, int weighted, |
||
| 665 | qpel_mc_func (*qpel_mc)[16], |
||
| 666 | h264_chroma_mc_func (*chroma_mc)) |
||
| 667 | { |
||
| 668 | MpegEncContext *s = &r->s; |
||
| 669 | uint8_t *Y, *U, *V, *srcY, *srcU, *srcV; |
||
| 670 | int dxy, mx, my, umx, umy, lx, ly, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
||
| 671 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride + mv_off; |
||
| 672 | int is16x16 = 1; |
||
| 673 | |||
| 674 | if(thirdpel){ |
||
| 675 | int chroma_mx, chroma_my; |
||
| 676 | mx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) / 3 - (1 << 24); |
||
| 677 | my = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) / 3 - (1 << 24); |
||
| 678 | lx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) % 3; |
||
| 679 | ly = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) % 3; |
||
| 680 | chroma_mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; |
||
| 681 | chroma_my = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; |
||
| 682 | umx = (chroma_mx + (3 << 24)) / 3 - (1 << 24); |
||
| 683 | umy = (chroma_my + (3 << 24)) / 3 - (1 << 24); |
||
| 684 | uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3]; |
||
| 685 | uvmy = chroma_coeffs[(chroma_my + (3 << 24)) % 3]; |
||
| 686 | }else{ |
||
| 687 | int cx, cy; |
||
| 688 | mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] >> 2; |
||
| 689 | my = s->current_picture_ptr->motion_val[dir][mv_pos][1] >> 2; |
||
| 690 | lx = s->current_picture_ptr->motion_val[dir][mv_pos][0] & 3; |
||
| 691 | ly = s->current_picture_ptr->motion_val[dir][mv_pos][1] & 3; |
||
| 692 | cx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; |
||
| 693 | cy = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; |
||
| 694 | umx = cx >> 2; |
||
| 695 | umy = cy >> 2; |
||
| 696 | uvmx = (cx & 3) << 1; |
||
| 697 | uvmy = (cy & 3) << 1; |
||
| 698 | //due to some flaw RV40 uses the same MC compensation routine for H2V2 and H3V3 |
||
| 699 | if(uvmx == 6 && uvmy == 6) |
||
| 700 | uvmx = uvmy = 4; |
||
| 701 | } |
||
| 702 | |||
| 703 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) { |
||
| 704 | /* wait for the referenced mb row to be finished */ |
||
| 705 | int mb_row = s->mb_y + ((yoff + my + 5 + 8 * height) >> 4); |
||
| 706 | ThreadFrame *f = dir ? &s->next_picture_ptr->tf : &s->last_picture_ptr->tf; |
||
| 707 | ff_thread_await_progress(f, mb_row, 0); |
||
| 708 | } |
||
| 709 | |||
| 710 | dxy = ly*4 + lx; |
||
| 711 | srcY = dir ? s->next_picture_ptr->f.data[0] : s->last_picture_ptr->f.data[0]; |
||
| 712 | srcU = dir ? s->next_picture_ptr->f.data[1] : s->last_picture_ptr->f.data[1]; |
||
| 713 | srcV = dir ? s->next_picture_ptr->f.data[2] : s->last_picture_ptr->f.data[2]; |
||
| 714 | src_x = s->mb_x * 16 + xoff + mx; |
||
| 715 | src_y = s->mb_y * 16 + yoff + my; |
||
| 716 | uvsrc_x = s->mb_x * 8 + (xoff >> 1) + umx; |
||
| 717 | uvsrc_y = s->mb_y * 8 + (yoff >> 1) + umy; |
||
| 718 | srcY += src_y * s->linesize + src_x; |
||
| 719 | srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
||
| 720 | srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
||
| 721 | if(s->h_edge_pos - (width << 3) < 6 || s->v_edge_pos - (height << 3) < 6 || |
||
| 722 | (unsigned)(src_x - !!lx*2) > s->h_edge_pos - !!lx*2 - (width <<3) - 4 || |
||
| 723 | (unsigned)(src_y - !!ly*2) > s->v_edge_pos - !!ly*2 - (height<<3) - 4) { |
||
| 724 | uint8_t *uvbuf = s->edge_emu_buffer + 22 * s->linesize; |
||
| 725 | |||
| 726 | srcY -= 2 + 2*s->linesize; |
||
| 727 | s->vdsp.emulated_edge_mc(s->edge_emu_buffer, s->linesize, srcY, s->linesize, |
||
| 728 | (width<<3)+6, (height<<3)+6, src_x - 2, src_y - 2, |
||
| 729 | s->h_edge_pos, s->v_edge_pos); |
||
| 730 | srcY = s->edge_emu_buffer + 2 + 2*s->linesize; |
||
| 731 | s->vdsp.emulated_edge_mc(uvbuf, s->uvlinesize, srcU, s->uvlinesize, |
||
| 732 | (width<<2)+1, (height<<2)+1, uvsrc_x, uvsrc_y, |
||
| 733 | s->h_edge_pos >> 1, s->v_edge_pos >> 1); |
||
| 734 | s->vdsp.emulated_edge_mc(uvbuf + 16, s->uvlinesize, srcV, s->uvlinesize, |
||
| 735 | (width<<2)+1, (height<<2)+1, uvsrc_x, uvsrc_y, |
||
| 736 | s->h_edge_pos >> 1, s->v_edge_pos >> 1); |
||
| 737 | srcU = uvbuf; |
||
| 738 | srcV = uvbuf + 16; |
||
| 739 | } |
||
| 740 | if(!weighted){ |
||
| 741 | Y = s->dest[0] + xoff + yoff *s->linesize; |
||
| 742 | U = s->dest[1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; |
||
| 743 | V = s->dest[2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; |
||
| 744 | }else{ |
||
| 745 | Y = r->tmp_b_block_y [dir] + xoff + yoff *s->linesize; |
||
| 746 | U = r->tmp_b_block_uv[dir*2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; |
||
| 747 | V = r->tmp_b_block_uv[dir*2+1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; |
||
| 748 | } |
||
| 749 | |||
| 750 | if(block_type == RV34_MB_P_16x8){ |
||
| 751 | qpel_mc[1][dxy](Y, srcY, s->linesize); |
||
| 752 | Y += 8; |
||
| 753 | srcY += 8; |
||
| 754 | }else if(block_type == RV34_MB_P_8x16){ |
||
| 755 | qpel_mc[1][dxy](Y, srcY, s->linesize); |
||
| 756 | Y += 8 * s->linesize; |
||
| 757 | srcY += 8 * s->linesize; |
||
| 758 | } |
||
| 759 | is16x16 = (block_type != RV34_MB_P_8x8) && (block_type != RV34_MB_P_16x8) && (block_type != RV34_MB_P_8x16); |
||
| 760 | qpel_mc[!is16x16][dxy](Y, srcY, s->linesize); |
||
| 761 | chroma_mc[2-width] (U, srcU, s->uvlinesize, height*4, uvmx, uvmy); |
||
| 762 | chroma_mc[2-width] (V, srcV, s->uvlinesize, height*4, uvmx, uvmy); |
||
| 763 | } |
||
| 764 | |||
| 765 | static void rv34_mc_1mv(RV34DecContext *r, const int block_type, |
||
| 766 | const int xoff, const int yoff, int mv_off, |
||
| 767 | const int width, const int height, int dir) |
||
| 768 | { |
||
| 769 | rv34_mc(r, block_type, xoff, yoff, mv_off, width, height, dir, r->rv30, 0, |
||
| 770 | r->rdsp.put_pixels_tab, |
||
| 771 | r->rdsp.put_chroma_pixels_tab); |
||
| 772 | } |
||
| 773 | |||
| 774 | static void rv4_weight(RV34DecContext *r) |
||
| 775 | { |
||
| 776 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][0](r->s.dest[0], |
||
| 777 | r->tmp_b_block_y[0], |
||
| 778 | r->tmp_b_block_y[1], |
||
| 779 | r->weight1, |
||
| 780 | r->weight2, |
||
| 781 | r->s.linesize); |
||
| 782 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[1], |
||
| 783 | r->tmp_b_block_uv[0], |
||
| 784 | r->tmp_b_block_uv[2], |
||
| 785 | r->weight1, |
||
| 786 | r->weight2, |
||
| 787 | r->s.uvlinesize); |
||
| 788 | r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[2], |
||
| 789 | r->tmp_b_block_uv[1], |
||
| 790 | r->tmp_b_block_uv[3], |
||
| 791 | r->weight1, |
||
| 792 | r->weight2, |
||
| 793 | r->s.uvlinesize); |
||
| 794 | } |
||
| 795 | |||
| 796 | static void rv34_mc_2mv(RV34DecContext *r, const int block_type) |
||
| 797 | { |
||
| 798 | int weighted = !r->rv30 && block_type != RV34_MB_B_BIDIR && r->weight1 != 8192; |
||
| 799 | |||
| 800 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 0, r->rv30, weighted, |
||
| 801 | r->rdsp.put_pixels_tab, |
||
| 802 | r->rdsp.put_chroma_pixels_tab); |
||
| 803 | if(!weighted){ |
||
| 804 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 0, |
||
| 805 | r->rdsp.avg_pixels_tab, |
||
| 806 | r->rdsp.avg_chroma_pixels_tab); |
||
| 807 | }else{ |
||
| 808 | rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 1, |
||
| 809 | r->rdsp.put_pixels_tab, |
||
| 810 | r->rdsp.put_chroma_pixels_tab); |
||
| 811 | rv4_weight(r); |
||
| 812 | } |
||
| 813 | } |
||
| 814 | |||
| 815 | static void rv34_mc_2mv_skip(RV34DecContext *r) |
||
| 816 | { |
||
| 817 | int i, j; |
||
| 818 | int weighted = !r->rv30 && r->weight1 != 8192; |
||
| 819 | |||
| 820 | for(j = 0; j < 2; j++) |
||
| 821 | for(i = 0; i < 2; i++){ |
||
| 822 | rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 0, r->rv30, |
||
| 823 | weighted, |
||
| 824 | r->rdsp.put_pixels_tab, |
||
| 825 | r->rdsp.put_chroma_pixels_tab); |
||
| 826 | rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 1, r->rv30, |
||
| 827 | weighted, |
||
| 828 | weighted ? r->rdsp.put_pixels_tab : r->rdsp.avg_pixels_tab, |
||
| 829 | weighted ? r->rdsp.put_chroma_pixels_tab : r->rdsp.avg_chroma_pixels_tab); |
||
| 830 | } |
||
| 831 | if(weighted) |
||
| 832 | rv4_weight(r); |
||
| 833 | } |
||
| 834 | |||
| 835 | /** number of motion vectors in each macroblock type */ |
||
| 836 | static const int num_mvs[RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 }; |
||
| 837 | |||
| 838 | /** |
||
| 839 | * Decode motion vector differences |
||
| 840 | * and perform motion vector reconstruction and motion compensation. |
||
| 841 | */ |
||
| 842 | static int rv34_decode_mv(RV34DecContext *r, int block_type) |
||
| 843 | { |
||
| 844 | MpegEncContext *s = &r->s; |
||
| 845 | GetBitContext *gb = &s->gb; |
||
| 846 | int i, j, k, l; |
||
| 847 | int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; |
||
| 848 | int next_bt; |
||
| 849 | |||
| 850 | memset(r->dmv, 0, sizeof(r->dmv)); |
||
| 851 | for(i = 0; i < num_mvs[block_type]; i++){ |
||
| 852 | r->dmv[i][0] = svq3_get_se_golomb(gb); |
||
| 853 | r->dmv[i][1] = svq3_get_se_golomb(gb); |
||
| 854 | } |
||
| 855 | switch(block_type){ |
||
| 856 | case RV34_MB_TYPE_INTRA: |
||
| 857 | case RV34_MB_TYPE_INTRA16x16: |
||
| 858 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); |
||
| 859 | return 0; |
||
| 860 | case RV34_MB_SKIP: |
||
| 861 | if(s->pict_type == AV_PICTURE_TYPE_P){ |
||
| 862 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); |
||
| 863 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); |
||
| 864 | break; |
||
| 865 | } |
||
| 866 | case RV34_MB_B_DIRECT: |
||
| 867 | //surprisingly, it uses motion scheme from next reference frame |
||
| 868 | /* wait for the current mb row to be finished */ |
||
| 869 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) |
||
| 870 | ff_thread_await_progress(&s->next_picture_ptr->tf, FFMAX(0, s->mb_y-1), 0); |
||
| 871 | |||
| 872 | next_bt = s->next_picture_ptr->mb_type[s->mb_x + s->mb_y * s->mb_stride]; |
||
| 873 | if(IS_INTRA(next_bt) || IS_SKIP(next_bt)){ |
||
| 874 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); |
||
| 875 | ZERO8x2(s->current_picture_ptr->motion_val[1][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); |
||
| 876 | }else |
||
| 877 | for(j = 0; j < 2; j++) |
||
| 878 | for(i = 0; i < 2; i++) |
||
| 879 | for(k = 0; k < 2; k++) |
||
| 880 | for(l = 0; l < 2; l++) |
||
| 881 | s->current_picture_ptr->motion_val[l][mv_pos + i + j*s->b8_stride][k] = calc_add_mv(r, l, s->next_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][k]); |
||
| 882 | if(!(IS_16X8(next_bt) || IS_8X16(next_bt) || IS_8X8(next_bt))) //we can use whole macroblock MC |
||
| 883 | rv34_mc_2mv(r, block_type); |
||
| 884 | else |
||
| 885 | rv34_mc_2mv_skip(r); |
||
| 886 | ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); |
||
| 887 | break; |
||
| 888 | case RV34_MB_P_16x16: |
||
| 889 | case RV34_MB_P_MIX16x16: |
||
| 890 | rv34_pred_mv(r, block_type, 0, 0); |
||
| 891 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); |
||
| 892 | break; |
||
| 893 | case RV34_MB_B_FORWARD: |
||
| 894 | case RV34_MB_B_BACKWARD: |
||
| 895 | r->dmv[1][0] = r->dmv[0][0]; |
||
| 896 | r->dmv[1][1] = r->dmv[0][1]; |
||
| 897 | if(r->rv30) |
||
| 898 | rv34_pred_mv_rv3(r, block_type, block_type == RV34_MB_B_BACKWARD); |
||
| 899 | else |
||
| 900 | rv34_pred_mv_b (r, block_type, block_type == RV34_MB_B_BACKWARD); |
||
| 901 | rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, block_type == RV34_MB_B_BACKWARD); |
||
| 902 | break; |
||
| 903 | case RV34_MB_P_16x8: |
||
| 904 | case RV34_MB_P_8x16: |
||
| 905 | rv34_pred_mv(r, block_type, 0, 0); |
||
| 906 | rv34_pred_mv(r, block_type, 1 + (block_type == RV34_MB_P_16x8), 1); |
||
| 907 | if(block_type == RV34_MB_P_16x8){ |
||
| 908 | rv34_mc_1mv(r, block_type, 0, 0, 0, 2, 1, 0); |
||
| 909 | rv34_mc_1mv(r, block_type, 0, 8, s->b8_stride, 2, 1, 0); |
||
| 910 | } |
||
| 911 | if(block_type == RV34_MB_P_8x16){ |
||
| 912 | rv34_mc_1mv(r, block_type, 0, 0, 0, 1, 2, 0); |
||
| 913 | rv34_mc_1mv(r, block_type, 8, 0, 1, 1, 2, 0); |
||
| 914 | } |
||
| 915 | break; |
||
| 916 | case RV34_MB_B_BIDIR: |
||
| 917 | rv34_pred_mv_b (r, block_type, 0); |
||
| 918 | rv34_pred_mv_b (r, block_type, 1); |
||
| 919 | rv34_mc_2mv (r, block_type); |
||
| 920 | break; |
||
| 921 | case RV34_MB_P_8x8: |
||
| 922 | for(i=0;i< 4;i++){ |
||
| 923 | rv34_pred_mv(r, block_type, i, i); |
||
| 924 | rv34_mc_1mv (r, block_type, (i&1)<<3, (i&2)<<2, (i&1)+(i>>1)*s->b8_stride, 1, 1, 0); |
||
| 925 | } |
||
| 926 | break; |
||
| 927 | } |
||
| 928 | |||
| 929 | return 0; |
||
| 930 | } |
||
| 931 | /** @} */ // mv group |
||
| 932 | |||
| 933 | /** |
||
| 934 | * @name Macroblock reconstruction functions |
||
| 935 | * @{ |
||
| 936 | */ |
||
| 937 | /** mapping of RV30/40 intra prediction types to standard H.264 types */ |
||
| 938 | static const int ittrans[9] = { |
||
| 939 | DC_PRED, VERT_PRED, HOR_PRED, DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_LEFT_PRED, |
||
| 940 | VERT_RIGHT_PRED, VERT_LEFT_PRED, HOR_UP_PRED, HOR_DOWN_PRED, |
||
| 941 | }; |
||
| 942 | |||
| 943 | /** mapping of RV30/40 intra 16x16 prediction types to standard H.264 types */ |
||
| 944 | static const int ittrans16[4] = { |
||
| 945 | DC_PRED8x8, VERT_PRED8x8, HOR_PRED8x8, PLANE_PRED8x8, |
||
| 946 | }; |
||
| 947 | |||
| 948 | /** |
||
| 949 | * Perform 4x4 intra prediction. |
||
| 950 | */ |
||
| 951 | static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right) |
||
| 952 | { |
||
| 953 | uint8_t *prev = dst - stride + 4; |
||
| 954 | uint32_t topleft; |
||
| 955 | |||
| 956 | if(!up && !left) |
||
| 957 | itype = DC_128_PRED; |
||
| 958 | else if(!up){ |
||
| 959 | if(itype == VERT_PRED) itype = HOR_PRED; |
||
| 960 | if(itype == DC_PRED) itype = LEFT_DC_PRED; |
||
| 961 | }else if(!left){ |
||
| 962 | if(itype == HOR_PRED) itype = VERT_PRED; |
||
| 963 | if(itype == DC_PRED) itype = TOP_DC_PRED; |
||
| 964 | if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; |
||
| 965 | } |
||
| 966 | if(!down){ |
||
| 967 | if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; |
||
| 968 | if(itype == HOR_UP_PRED) itype = HOR_UP_PRED_RV40_NODOWN; |
||
| 969 | if(itype == VERT_LEFT_PRED) itype = VERT_LEFT_PRED_RV40_NODOWN; |
||
| 970 | } |
||
| 971 | if(!right && up){ |
||
| 972 | topleft = dst[-stride + 3] * 0x01010101u; |
||
| 973 | prev = (uint8_t*)&topleft; |
||
| 974 | } |
||
| 975 | r->h.pred4x4[itype](dst, prev, stride); |
||
| 976 | } |
||
| 977 | |||
| 978 | static inline int adjust_pred16(int itype, int up, int left) |
||
| 979 | { |
||
| 980 | if(!up && !left) |
||
| 981 | itype = DC_128_PRED8x8; |
||
| 982 | else if(!up){ |
||
| 983 | if(itype == PLANE_PRED8x8)itype = HOR_PRED8x8; |
||
| 984 | if(itype == VERT_PRED8x8) itype = HOR_PRED8x8; |
||
| 985 | if(itype == DC_PRED8x8) itype = LEFT_DC_PRED8x8; |
||
| 986 | }else if(!left){ |
||
| 987 | if(itype == PLANE_PRED8x8)itype = VERT_PRED8x8; |
||
| 988 | if(itype == HOR_PRED8x8) itype = VERT_PRED8x8; |
||
| 989 | if(itype == DC_PRED8x8) itype = TOP_DC_PRED8x8; |
||
| 990 | } |
||
| 991 | return itype; |
||
| 992 | } |
||
| 993 | |||
| 994 | static inline void rv34_process_block(RV34DecContext *r, |
||
| 995 | uint8_t *pdst, int stride, |
||
| 996 | int fc, int sc, int q_dc, int q_ac) |
||
| 997 | { |
||
| 998 | MpegEncContext *s = &r->s; |
||
| 999 | int16_t *ptr = s->block[0]; |
||
| 1000 | int has_ac = rv34_decode_block(ptr, &s->gb, r->cur_vlcs, |
||
| 1001 | fc, sc, q_dc, q_ac, q_ac); |
||
| 1002 | if(has_ac){ |
||
| 1003 | r->rdsp.rv34_idct_add(pdst, stride, ptr); |
||
| 1004 | }else{ |
||
| 1005 | r->rdsp.rv34_idct_dc_add(pdst, stride, ptr[0]); |
||
| 1006 | ptr[0] = 0; |
||
| 1007 | } |
||
| 1008 | } |
||
| 1009 | |||
| 1010 | static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp) |
||
| 1011 | { |
||
| 1012 | LOCAL_ALIGNED_16(int16_t, block16, [16]); |
||
| 1013 | MpegEncContext *s = &r->s; |
||
| 1014 | GetBitContext *gb = &s->gb; |
||
| 1015 | int q_dc = rv34_qscale_tab[ r->luma_dc_quant_i[s->qscale] ], |
||
| 1016 | q_ac = rv34_qscale_tab[s->qscale]; |
||
| 1017 | uint8_t *dst = s->dest[0]; |
||
| 1018 | int16_t *ptr = s->block[0]; |
||
| 1019 | int i, j, itype, has_ac; |
||
| 1020 | |||
| 1021 | memset(block16, 0, 16 * sizeof(*block16)); |
||
| 1022 | |||
| 1023 | has_ac = rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac); |
||
| 1024 | if(has_ac) |
||
| 1025 | r->rdsp.rv34_inv_transform(block16); |
||
| 1026 | else |
||
| 1027 | r->rdsp.rv34_inv_transform_dc(block16); |
||
| 1028 | |||
| 1029 | itype = ittrans16[intra_types[0]]; |
||
| 1030 | itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); |
||
| 1031 | r->h.pred16x16[itype](dst, s->linesize); |
||
| 1032 | |||
| 1033 | for(j = 0; j < 4; j++){ |
||
| 1034 | for(i = 0; i < 4; i++, cbp >>= 1){ |
||
| 1035 | int dc = block16[i + j*4]; |
||
| 1036 | |||
| 1037 | if(cbp & 1){ |
||
| 1038 | has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); |
||
| 1039 | }else |
||
| 1040 | has_ac = 0; |
||
| 1041 | |||
| 1042 | if(has_ac){ |
||
| 1043 | ptr[0] = dc; |
||
| 1044 | r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); |
||
| 1045 | }else |
||
| 1046 | r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); |
||
| 1047 | } |
||
| 1048 | |||
| 1049 | dst += 4*s->linesize; |
||
| 1050 | } |
||
| 1051 | |||
| 1052 | itype = ittrans16[intra_types[0]]; |
||
| 1053 | if(itype == PLANE_PRED8x8) itype = DC_PRED8x8; |
||
| 1054 | itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); |
||
| 1055 | |||
| 1056 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; |
||
| 1057 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; |
||
| 1058 | |||
| 1059 | for(j = 1; j < 3; j++){ |
||
| 1060 | dst = s->dest[j]; |
||
| 1061 | r->h.pred8x8[itype](dst, s->uvlinesize); |
||
| 1062 | for(i = 0; i < 4; i++, cbp >>= 1){ |
||
| 1063 | uint8_t *pdst; |
||
| 1064 | if(!(cbp & 1)) continue; |
||
| 1065 | pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; |
||
| 1066 | |||
| 1067 | rv34_process_block(r, pdst, s->uvlinesize, |
||
| 1068 | r->chroma_vlc, 1, q_dc, q_ac); |
||
| 1069 | } |
||
| 1070 | } |
||
| 1071 | } |
||
| 1072 | |||
| 1073 | static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp) |
||
| 1074 | { |
||
| 1075 | MpegEncContext *s = &r->s; |
||
| 1076 | uint8_t *dst = s->dest[0]; |
||
| 1077 | int avail[6*8] = {0}; |
||
| 1078 | int i, j, k; |
||
| 1079 | int idx, q_ac, q_dc; |
||
| 1080 | |||
| 1081 | // Set neighbour information. |
||
| 1082 | if(r->avail_cache[1]) |
||
| 1083 | avail[0] = 1; |
||
| 1084 | if(r->avail_cache[2]) |
||
| 1085 | avail[1] = avail[2] = 1; |
||
| 1086 | if(r->avail_cache[3]) |
||
| 1087 | avail[3] = avail[4] = 1; |
||
| 1088 | if(r->avail_cache[4]) |
||
| 1089 | avail[5] = 1; |
||
| 1090 | if(r->avail_cache[5]) |
||
| 1091 | avail[8] = avail[16] = 1; |
||
| 1092 | if(r->avail_cache[9]) |
||
| 1093 | avail[24] = avail[32] = 1; |
||
| 1094 | |||
| 1095 | q_ac = rv34_qscale_tab[s->qscale]; |
||
| 1096 | for(j = 0; j < 4; j++){ |
||
| 1097 | idx = 9 + j*8; |
||
| 1098 | for(i = 0; i < 4; i++, cbp >>= 1, dst += 4, idx++){ |
||
| 1099 | rv34_pred_4x4_block(r, dst, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]); |
||
| 1100 | avail[idx] = 1; |
||
| 1101 | if(!(cbp & 1)) continue; |
||
| 1102 | |||
| 1103 | rv34_process_block(r, dst, s->linesize, |
||
| 1104 | r->luma_vlc, 0, q_ac, q_ac); |
||
| 1105 | } |
||
| 1106 | dst += s->linesize * 4 - 4*4; |
||
| 1107 | intra_types += r->intra_types_stride; |
||
| 1108 | } |
||
| 1109 | |||
| 1110 | intra_types -= r->intra_types_stride * 4; |
||
| 1111 | |||
| 1112 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; |
||
| 1113 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; |
||
| 1114 | |||
| 1115 | for(k = 0; k < 2; k++){ |
||
| 1116 | dst = s->dest[1+k]; |
||
| 1117 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4); |
||
| 1118 | |||
| 1119 | for(j = 0; j < 2; j++){ |
||
| 1120 | int* acache = r->avail_cache + 6 + j*4; |
||
| 1121 | for(i = 0; i < 2; i++, cbp >>= 1, acache++){ |
||
| 1122 | int itype = ittrans[intra_types[i*2+j*2*r->intra_types_stride]]; |
||
| 1123 | rv34_pred_4x4_block(r, dst+4*i, s->uvlinesize, itype, acache[-4], acache[-1], !i && !j, acache[-3]); |
||
| 1124 | acache[0] = 1; |
||
| 1125 | |||
| 1126 | if(!(cbp&1)) continue; |
||
| 1127 | |||
| 1128 | rv34_process_block(r, dst + 4*i, s->uvlinesize, |
||
| 1129 | r->chroma_vlc, 1, q_dc, q_ac); |
||
| 1130 | } |
||
| 1131 | |||
| 1132 | dst += 4*s->uvlinesize; |
||
| 1133 | } |
||
| 1134 | } |
||
| 1135 | } |
||
| 1136 | |||
| 1137 | static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step) |
||
| 1138 | { |
||
| 1139 | int d; |
||
| 1140 | d = motion_val[0][0] - motion_val[-step][0]; |
||
| 1141 | if(d < -3 || d > 3) |
||
| 1142 | return 1; |
||
| 1143 | d = motion_val[0][1] - motion_val[-step][1]; |
||
| 1144 | if(d < -3 || d > 3) |
||
| 1145 | return 1; |
||
| 1146 | return 0; |
||
| 1147 | } |
||
| 1148 | |||
| 1149 | static int rv34_set_deblock_coef(RV34DecContext *r) |
||
| 1150 | { |
||
| 1151 | MpegEncContext *s = &r->s; |
||
| 1152 | int hmvmask = 0, vmvmask = 0, i, j; |
||
| 1153 | int midx = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; |
||
| 1154 | int16_t (*motion_val)[2] = &s->current_picture_ptr->motion_val[0][midx]; |
||
| 1155 | for(j = 0; j < 16; j += 8){ |
||
| 1156 | for(i = 0; i < 2; i++){ |
||
| 1157 | if(is_mv_diff_gt_3(motion_val + i, 1)) |
||
| 1158 | vmvmask |= 0x11 << (j + i*2); |
||
| 1159 | if((j || s->mb_y) && is_mv_diff_gt_3(motion_val + i, s->b8_stride)) |
||
| 1160 | hmvmask |= 0x03 << (j + i*2); |
||
| 1161 | } |
||
| 1162 | motion_val += s->b8_stride; |
||
| 1163 | } |
||
| 1164 | if(s->first_slice_line) |
||
| 1165 | hmvmask &= ~0x000F; |
||
| 1166 | if(!s->mb_x) |
||
| 1167 | vmvmask &= ~0x1111; |
||
| 1168 | if(r->rv30){ //RV30 marks both subblocks on the edge for filtering |
||
| 1169 | vmvmask |= (vmvmask & 0x4444) >> 1; |
||
| 1170 | hmvmask |= (hmvmask & 0x0F00) >> 4; |
||
| 1171 | if(s->mb_x) |
||
| 1172 | r->deblock_coefs[s->mb_x - 1 + s->mb_y*s->mb_stride] |= (vmvmask & 0x1111) << 3; |
||
| 1173 | if(!s->first_slice_line) |
||
| 1174 | r->deblock_coefs[s->mb_x + (s->mb_y - 1)*s->mb_stride] |= (hmvmask & 0xF) << 12; |
||
| 1175 | } |
||
| 1176 | return hmvmask | vmvmask; |
||
| 1177 | } |
||
| 1178 | |||
| 1179 | static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types) |
||
| 1180 | { |
||
| 1181 | MpegEncContext *s = &r->s; |
||
| 1182 | GetBitContext *gb = &s->gb; |
||
| 1183 | uint8_t *dst = s->dest[0]; |
||
| 1184 | int16_t *ptr = s->block[0]; |
||
| 1185 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
||
| 1186 | int cbp, cbp2; |
||
| 1187 | int q_dc, q_ac, has_ac; |
||
| 1188 | int i, j; |
||
| 1189 | int dist; |
||
| 1190 | |||
| 1191 | // Calculate which neighbours are available. Maybe it's worth optimizing too. |
||
| 1192 | memset(r->avail_cache, 0, sizeof(r->avail_cache)); |
||
| 1193 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); |
||
| 1194 | dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; |
||
| 1195 | if(s->mb_x && dist) |
||
| 1196 | r->avail_cache[5] = |
||
| 1197 | r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; |
||
| 1198 | if(dist >= s->mb_width) |
||
| 1199 | r->avail_cache[2] = |
||
| 1200 | r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; |
||
| 1201 | if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) |
||
| 1202 | r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; |
||
| 1203 | if(s->mb_x && dist > s->mb_width) |
||
| 1204 | r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; |
||
| 1205 | |||
| 1206 | s->qscale = r->si.quant; |
||
| 1207 | cbp = cbp2 = rv34_decode_inter_mb_header(r, intra_types); |
||
| 1208 | r->cbp_luma [mb_pos] = cbp; |
||
| 1209 | r->cbp_chroma[mb_pos] = cbp >> 16; |
||
| 1210 | r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos]; |
||
| 1211 | s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; |
||
| 1212 | |||
| 1213 | if(cbp == -1) |
||
| 1214 | return -1; |
||
| 1215 | |||
| 1216 | if (IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ |
||
| 1217 | if(r->is16) rv34_output_i16x16(r, intra_types, cbp); |
||
| 1218 | else rv34_output_intra(r, intra_types, cbp); |
||
| 1219 | return 0; |
||
| 1220 | } |
||
| 1221 | |||
| 1222 | if(r->is16){ |
||
| 1223 | // Only for RV34_MB_P_MIX16x16 |
||
| 1224 | LOCAL_ALIGNED_16(int16_t, block16, [16]); |
||
| 1225 | memset(block16, 0, 16 * sizeof(*block16)); |
||
| 1226 | q_dc = rv34_qscale_tab[ r->luma_dc_quant_p[s->qscale] ]; |
||
| 1227 | q_ac = rv34_qscale_tab[s->qscale]; |
||
| 1228 | if (rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac)) |
||
| 1229 | r->rdsp.rv34_inv_transform(block16); |
||
| 1230 | else |
||
| 1231 | r->rdsp.rv34_inv_transform_dc(block16); |
||
| 1232 | |||
| 1233 | q_ac = rv34_qscale_tab[s->qscale]; |
||
| 1234 | |||
| 1235 | for(j = 0; j < 4; j++){ |
||
| 1236 | for(i = 0; i < 4; i++, cbp >>= 1){ |
||
| 1237 | int dc = block16[i + j*4]; |
||
| 1238 | |||
| 1239 | if(cbp & 1){ |
||
| 1240 | has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); |
||
| 1241 | }else |
||
| 1242 | has_ac = 0; |
||
| 1243 | |||
| 1244 | if(has_ac){ |
||
| 1245 | ptr[0] = dc; |
||
| 1246 | r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); |
||
| 1247 | }else |
||
| 1248 | r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); |
||
| 1249 | } |
||
| 1250 | |||
| 1251 | dst += 4*s->linesize; |
||
| 1252 | } |
||
| 1253 | |||
| 1254 | r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); |
||
| 1255 | }else{ |
||
| 1256 | q_ac = rv34_qscale_tab[s->qscale]; |
||
| 1257 | |||
| 1258 | for(j = 0; j < 4; j++){ |
||
| 1259 | for(i = 0; i < 4; i++, cbp >>= 1){ |
||
| 1260 | if(!(cbp & 1)) continue; |
||
| 1261 | |||
| 1262 | rv34_process_block(r, dst + 4*i, s->linesize, |
||
| 1263 | r->luma_vlc, 0, q_ac, q_ac); |
||
| 1264 | } |
||
| 1265 | dst += 4*s->linesize; |
||
| 1266 | } |
||
| 1267 | } |
||
| 1268 | |||
| 1269 | q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; |
||
| 1270 | q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; |
||
| 1271 | |||
| 1272 | for(j = 1; j < 3; j++){ |
||
| 1273 | dst = s->dest[j]; |
||
| 1274 | for(i = 0; i < 4; i++, cbp >>= 1){ |
||
| 1275 | uint8_t *pdst; |
||
| 1276 | if(!(cbp & 1)) continue; |
||
| 1277 | pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; |
||
| 1278 | |||
| 1279 | rv34_process_block(r, pdst, s->uvlinesize, |
||
| 1280 | r->chroma_vlc, 1, q_dc, q_ac); |
||
| 1281 | } |
||
| 1282 | } |
||
| 1283 | |||
| 1284 | return 0; |
||
| 1285 | } |
||
| 1286 | |||
| 1287 | static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types) |
||
| 1288 | { |
||
| 1289 | MpegEncContext *s = &r->s; |
||
| 1290 | int cbp, dist; |
||
| 1291 | int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
||
| 1292 | |||
| 1293 | // Calculate which neighbours are available. Maybe it's worth optimizing too. |
||
| 1294 | memset(r->avail_cache, 0, sizeof(r->avail_cache)); |
||
| 1295 | fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); |
||
| 1296 | dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; |
||
| 1297 | if(s->mb_x && dist) |
||
| 1298 | r->avail_cache[5] = |
||
| 1299 | r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; |
||
| 1300 | if(dist >= s->mb_width) |
||
| 1301 | r->avail_cache[2] = |
||
| 1302 | r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; |
||
| 1303 | if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) |
||
| 1304 | r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; |
||
| 1305 | if(s->mb_x && dist > s->mb_width) |
||
| 1306 | r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; |
||
| 1307 | |||
| 1308 | s->qscale = r->si.quant; |
||
| 1309 | cbp = rv34_decode_intra_mb_header(r, intra_types); |
||
| 1310 | r->cbp_luma [mb_pos] = cbp; |
||
| 1311 | r->cbp_chroma[mb_pos] = cbp >> 16; |
||
| 1312 | r->deblock_coefs[mb_pos] = 0xFFFF; |
||
| 1313 | s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; |
||
| 1314 | |||
| 1315 | if(cbp == -1) |
||
| 1316 | return -1; |
||
| 1317 | |||
| 1318 | if(r->is16){ |
||
| 1319 | rv34_output_i16x16(r, intra_types, cbp); |
||
| 1320 | return 0; |
||
| 1321 | } |
||
| 1322 | |||
| 1323 | rv34_output_intra(r, intra_types, cbp); |
||
| 1324 | return 0; |
||
| 1325 | } |
||
| 1326 | |||
| 1327 | static int check_slice_end(RV34DecContext *r, MpegEncContext *s) |
||
| 1328 | { |
||
| 1329 | int bits; |
||
| 1330 | if(s->mb_y >= s->mb_height) |
||
| 1331 | return 1; |
||
| 1332 | if(!s->mb_num_left) |
||
| 1333 | return 1; |
||
| 1334 | if(r->s.mb_skip_run > 1) |
||
| 1335 | return 0; |
||
| 1336 | bits = get_bits_left(&s->gb); |
||
| 1337 | if(bits <= 0 || (bits < 8 && !show_bits(&s->gb, bits))) |
||
| 1338 | return 1; |
||
| 1339 | return 0; |
||
| 1340 | } |
||
| 1341 | |||
| 1342 | |||
| 1343 | static void rv34_decoder_free(RV34DecContext *r) |
||
| 1344 | { |
||
| 1345 | av_freep(&r->intra_types_hist); |
||
| 1346 | r->intra_types = NULL; |
||
| 1347 | av_freep(&r->tmp_b_block_base); |
||
| 1348 | av_freep(&r->mb_type); |
||
| 1349 | av_freep(&r->cbp_luma); |
||
| 1350 | av_freep(&r->cbp_chroma); |
||
| 1351 | av_freep(&r->deblock_coefs); |
||
| 1352 | } |
||
| 1353 | |||
| 1354 | |||
| 1355 | static int rv34_decoder_alloc(RV34DecContext *r) |
||
| 1356 | { |
||
| 1357 | r->intra_types_stride = r->s.mb_width * 4 + 4; |
||
| 1358 | |||
| 1359 | r->cbp_chroma = av_malloc(r->s.mb_stride * r->s.mb_height * |
||
| 1360 | sizeof(*r->cbp_chroma)); |
||
| 1361 | r->cbp_luma = av_malloc(r->s.mb_stride * r->s.mb_height * |
||
| 1362 | sizeof(*r->cbp_luma)); |
||
| 1363 | r->deblock_coefs = av_malloc(r->s.mb_stride * r->s.mb_height * |
||
| 1364 | sizeof(*r->deblock_coefs)); |
||
| 1365 | r->intra_types_hist = av_malloc(r->intra_types_stride * 4 * 2 * |
||
| 1366 | sizeof(*r->intra_types_hist)); |
||
| 1367 | r->mb_type = av_mallocz(r->s.mb_stride * r->s.mb_height * |
||
| 1368 | sizeof(*r->mb_type)); |
||
| 1369 | |||
| 1370 | if (!(r->cbp_chroma && r->cbp_luma && r->deblock_coefs && |
||
| 1371 | r->intra_types_hist && r->mb_type)) { |
||
| 1372 | rv34_decoder_free(r); |
||
| 1373 | return AVERROR(ENOMEM); |
||
| 1374 | } |
||
| 1375 | |||
| 1376 | r->intra_types = r->intra_types_hist + r->intra_types_stride * 4; |
||
| 1377 | |||
| 1378 | return 0; |
||
| 1379 | } |
||
| 1380 | |||
| 1381 | |||
| 1382 | static int rv34_decoder_realloc(RV34DecContext *r) |
||
| 1383 | { |
||
| 1384 | rv34_decoder_free(r); |
||
| 1385 | return rv34_decoder_alloc(r); |
||
| 1386 | } |
||
| 1387 | |||
| 1388 | |||
| 1389 | static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int buf_size) |
||
| 1390 | { |
||
| 1391 | MpegEncContext *s = &r->s; |
||
| 1392 | GetBitContext *gb = &s->gb; |
||
| 1393 | int mb_pos, slice_type; |
||
| 1394 | int res; |
||
| 1395 | |||
| 1396 | init_get_bits(&r->s.gb, buf, buf_size*8); |
||
| 1397 | res = r->parse_slice_header(r, gb, &r->si); |
||
| 1398 | if(res < 0){ |
||
| 1399 | av_log(s->avctx, AV_LOG_ERROR, "Incorrect or unknown slice header\n"); |
||
| 1400 | return -1; |
||
| 1401 | } |
||
| 1402 | |||
| 1403 | slice_type = r->si.type ? r->si.type : AV_PICTURE_TYPE_I; |
||
| 1404 | if (slice_type != s->pict_type) { |
||
| 1405 | av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n"); |
||
| 1406 | return AVERROR_INVALIDDATA; |
||
| 1407 | } |
||
| 1408 | if (s->width != r->si.width || s->height != r->si.height) { |
||
| 1409 | av_log(s->avctx, AV_LOG_ERROR, "Size mismatch\n"); |
||
| 1410 | return AVERROR_INVALIDDATA; |
||
| 1411 | } |
||
| 1412 | |||
| 1413 | r->si.end = end; |
||
| 1414 | s->qscale = r->si.quant; |
||
| 1415 | s->mb_num_left = r->si.end - r->si.start; |
||
| 1416 | r->s.mb_skip_run = 0; |
||
| 1417 | |||
| 1418 | mb_pos = s->mb_x + s->mb_y * s->mb_width; |
||
| 1419 | if(r->si.start != mb_pos){ |
||
| 1420 | av_log(s->avctx, AV_LOG_ERROR, "Slice indicates MB offset %d, got %d\n", r->si.start, mb_pos); |
||
| 1421 | s->mb_x = r->si.start % s->mb_width; |
||
| 1422 | s->mb_y = r->si.start / s->mb_width; |
||
| 1423 | } |
||
| 1424 | memset(r->intra_types_hist, -1, r->intra_types_stride * 4 * 2 * sizeof(*r->intra_types_hist)); |
||
| 1425 | s->first_slice_line = 1; |
||
| 1426 | s->resync_mb_x = s->mb_x; |
||
| 1427 | s->resync_mb_y = s->mb_y; |
||
| 1428 | |||
| 1429 | ff_init_block_index(s); |
||
| 1430 | while(!check_slice_end(r, s)) { |
||
| 1431 | ff_update_block_index(s); |
||
| 1432 | |||
| 1433 | if(r->si.type) |
||
| 1434 | res = rv34_decode_inter_macroblock(r, r->intra_types + s->mb_x * 4 + 4); |
||
| 1435 | else |
||
| 1436 | res = rv34_decode_intra_macroblock(r, r->intra_types + s->mb_x * 4 + 4); |
||
| 1437 | if(res < 0){ |
||
| 1438 | ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_ERROR); |
||
| 1439 | return -1; |
||
| 1440 | } |
||
| 1441 | if (++s->mb_x == s->mb_width) { |
||
| 1442 | s->mb_x = 0; |
||
| 1443 | s->mb_y++; |
||
| 1444 | ff_init_block_index(s); |
||
| 1445 | |||
| 1446 | memmove(r->intra_types_hist, r->intra_types, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); |
||
| 1447 | memset(r->intra_types, -1, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); |
||
| 1448 | |||
| 1449 | if(r->loop_filter && s->mb_y >= 2) |
||
| 1450 | r->loop_filter(r, s->mb_y - 2); |
||
| 1451 | |||
| 1452 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) |
||
| 1453 | ff_thread_report_progress(&s->current_picture_ptr->tf, |
||
| 1454 | s->mb_y - 2, 0); |
||
| 1455 | |||
| 1456 | } |
||
| 1457 | if(s->mb_x == s->resync_mb_x) |
||
| 1458 | s->first_slice_line=0; |
||
| 1459 | s->mb_num_left--; |
||
| 1460 | } |
||
| 1461 | ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END); |
||
| 1462 | |||
| 1463 | return s->mb_y == s->mb_height; |
||
| 1464 | } |
||
| 1465 | |||
| 1466 | /** @} */ // recons group end |
||
| 1467 | |||
| 1468 | /** |
||
| 1469 | * Initialize decoder. |
||
| 1470 | */ |
||
| 1471 | av_cold int ff_rv34_decode_init(AVCodecContext *avctx) |
||
| 1472 | { |
||
| 1473 | RV34DecContext *r = avctx->priv_data; |
||
| 1474 | MpegEncContext *s = &r->s; |
||
| 1475 | int ret; |
||
| 1476 | |||
| 1477 | ff_MPV_decode_defaults(s); |
||
| 1478 | s->avctx = avctx; |
||
| 1479 | s->out_format = FMT_H263; |
||
| 1480 | s->codec_id = avctx->codec_id; |
||
| 1481 | |||
| 1482 | s->width = avctx->width; |
||
| 1483 | s->height = avctx->height; |
||
| 1484 | |||
| 1485 | r->s.avctx = avctx; |
||
| 1486 | avctx->flags |= CODEC_FLAG_EMU_EDGE; |
||
| 1487 | r->s.flags |= CODEC_FLAG_EMU_EDGE; |
||
| 1488 | avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
||
| 1489 | avctx->has_b_frames = 1; |
||
| 1490 | s->low_delay = 0; |
||
| 1491 | |||
| 1492 | if ((ret = ff_MPV_common_init(s)) < 0) |
||
| 1493 | return ret; |
||
| 1494 | |||
| 1495 | ff_h264_pred_init(&r->h, AV_CODEC_ID_RV40, 8, 1); |
||
| 1496 | |||
| 1497 | #if CONFIG_RV30_DECODER |
||
| 1498 | if (avctx->codec_id == AV_CODEC_ID_RV30) |
||
| 1499 | ff_rv30dsp_init(&r->rdsp); |
||
| 1500 | #endif |
||
| 1501 | #if CONFIG_RV40_DECODER |
||
| 1502 | if (avctx->codec_id == AV_CODEC_ID_RV40) |
||
| 1503 | ff_rv40dsp_init(&r->rdsp); |
||
| 1504 | #endif |
||
| 1505 | |||
| 1506 | if ((ret = rv34_decoder_alloc(r)) < 0) { |
||
| 1507 | ff_MPV_common_end(&r->s); |
||
| 1508 | return ret; |
||
| 1509 | } |
||
| 1510 | |||
| 1511 | if(!intra_vlcs[0].cbppattern[0].bits) |
||
| 1512 | rv34_init_tables(); |
||
| 1513 | |||
| 1514 | avctx->internal->allocate_progress = 1; |
||
| 1515 | |||
| 1516 | return 0; |
||
| 1517 | } |
||
| 1518 | |||
| 1519 | int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx) |
||
| 1520 | { |
||
| 1521 | int err; |
||
| 1522 | RV34DecContext *r = avctx->priv_data; |
||
| 1523 | |||
| 1524 | r->s.avctx = avctx; |
||
| 1525 | |||
| 1526 | if (avctx->internal->is_copy) { |
||
| 1527 | r->tmp_b_block_base = NULL; |
||
| 1528 | if ((err = ff_MPV_common_init(&r->s)) < 0) |
||
| 1529 | return err; |
||
| 1530 | if ((err = rv34_decoder_alloc(r)) < 0) { |
||
| 1531 | ff_MPV_common_end(&r->s); |
||
| 1532 | return err; |
||
| 1533 | } |
||
| 1534 | } |
||
| 1535 | |||
| 1536 | return 0; |
||
| 1537 | } |
||
| 1538 | |||
| 1539 | int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) |
||
| 1540 | { |
||
| 1541 | RV34DecContext *r = dst->priv_data, *r1 = src->priv_data; |
||
| 1542 | MpegEncContext * const s = &r->s, * const s1 = &r1->s; |
||
| 1543 | int err; |
||
| 1544 | |||
| 1545 | if (dst == src || !s1->context_initialized) |
||
| 1546 | return 0; |
||
| 1547 | |||
| 1548 | if (s->height != s1->height || s->width != s1->width) { |
||
| 1549 | s->height = s1->height; |
||
| 1550 | s->width = s1->width; |
||
| 1551 | if ((err = ff_MPV_common_frame_size_change(s)) < 0) |
||
| 1552 | return err; |
||
| 1553 | if ((err = rv34_decoder_realloc(r)) < 0) |
||
| 1554 | return err; |
||
| 1555 | } |
||
| 1556 | |||
| 1557 | if ((err = ff_mpeg_update_thread_context(dst, src))) |
||
| 1558 | return err; |
||
| 1559 | |||
| 1560 | r->cur_pts = r1->cur_pts; |
||
| 1561 | r->last_pts = r1->last_pts; |
||
| 1562 | r->next_pts = r1->next_pts; |
||
| 1563 | |||
| 1564 | memset(&r->si, 0, sizeof(r->si)); |
||
| 1565 | |||
| 1566 | return 0; |
||
| 1567 | } |
||
| 1568 | |||
| 1569 | static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n) |
||
| 1570 | { |
||
| 1571 | if(avctx->slice_count) return avctx->slice_offset[n]; |
||
| 1572 | else return AV_RL32(buf + n*8 - 4) == 1 ? AV_RL32(buf + n*8) : AV_RB32(buf + n*8); |
||
| 1573 | } |
||
| 1574 | |||
| 1575 | static int finish_frame(AVCodecContext *avctx, AVFrame *pict) |
||
| 1576 | { |
||
| 1577 | RV34DecContext *r = avctx->priv_data; |
||
| 1578 | MpegEncContext *s = &r->s; |
||
| 1579 | int got_picture = 0, ret; |
||
| 1580 | |||
| 1581 | ff_er_frame_end(&s->er); |
||
| 1582 | ff_MPV_frame_end(s); |
||
| 1583 | s->mb_num_left = 0; |
||
| 1584 | |||
| 1585 | if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) |
||
| 1586 | ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); |
||
| 1587 | |||
| 1588 | if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) { |
||
| 1589 | if ((ret = av_frame_ref(pict, &s->current_picture_ptr->f)) < 0) |
||
| 1590 | return ret; |
||
| 1591 | ff_print_debug_info(s, s->current_picture_ptr, pict); |
||
| 1592 | ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1); |
||
| 1593 | got_picture = 1; |
||
| 1594 | } else if (s->last_picture_ptr != NULL) { |
||
| 1595 | if ((ret = av_frame_ref(pict, &s->last_picture_ptr->f)) < 0) |
||
| 1596 | return ret; |
||
| 1597 | ff_print_debug_info(s, s->last_picture_ptr, pict); |
||
| 1598 | ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1); |
||
| 1599 | got_picture = 1; |
||
| 1600 | } |
||
| 1601 | |||
| 1602 | return got_picture; |
||
| 1603 | } |
||
| 1604 | |||
| 1605 | static AVRational update_sar(int old_w, int old_h, AVRational sar, int new_w, int new_h) |
||
| 1606 | { |
||
| 1607 | // attempt to keep aspect during typical resolution switches |
||
| 1608 | if (!sar.num) |
||
| 1609 | sar = (AVRational){1, 1}; |
||
| 1610 | |||
| 1611 | sar = av_mul_q(sar, (AVRational){new_h * old_w, new_w * old_h}); |
||
| 1612 | return sar; |
||
| 1613 | } |
||
| 1614 | |||
| 1615 | int ff_rv34_decode_frame(AVCodecContext *avctx, |
||
| 1616 | void *data, int *got_picture_ptr, |
||
| 1617 | AVPacket *avpkt) |
||
| 1618 | { |
||
| 1619 | const uint8_t *buf = avpkt->data; |
||
| 1620 | int buf_size = avpkt->size; |
||
| 1621 | RV34DecContext *r = avctx->priv_data; |
||
| 1622 | MpegEncContext *s = &r->s; |
||
| 1623 | AVFrame *pict = data; |
||
| 1624 | SliceInfo si; |
||
| 1625 | int i, ret; |
||
| 1626 | int slice_count; |
||
| 1627 | const uint8_t *slices_hdr = NULL; |
||
| 1628 | int last = 0; |
||
| 1629 | |||
| 1630 | /* no supplementary picture */ |
||
| 1631 | if (buf_size == 0) { |
||
| 1632 | /* special case for last picture */ |
||
| 1633 | if (s->low_delay==0 && s->next_picture_ptr) { |
||
| 1634 | if ((ret = av_frame_ref(pict, &s->next_picture_ptr->f)) < 0) |
||
| 1635 | return ret; |
||
| 1636 | s->next_picture_ptr = NULL; |
||
| 1637 | |||
| 1638 | *got_picture_ptr = 1; |
||
| 1639 | } |
||
| 1640 | return 0; |
||
| 1641 | } |
||
| 1642 | |||
| 1643 | if(!avctx->slice_count){ |
||
| 1644 | slice_count = (*buf++) + 1; |
||
| 1645 | slices_hdr = buf + 4; |
||
| 1646 | buf += 8 * slice_count; |
||
| 1647 | buf_size -= 1 + 8 * slice_count; |
||
| 1648 | }else |
||
| 1649 | slice_count = avctx->slice_count; |
||
| 1650 | |||
| 1651 | //parse first slice header to check whether this frame can be decoded |
||
| 1652 | if(get_slice_offset(avctx, slices_hdr, 0) < 0 || |
||
| 1653 | get_slice_offset(avctx, slices_hdr, 0) > buf_size){ |
||
| 1654 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); |
||
| 1655 | return AVERROR_INVALIDDATA; |
||
| 1656 | } |
||
| 1657 | init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8); |
||
| 1658 | if(r->parse_slice_header(r, &r->s.gb, &si) < 0 || si.start){ |
||
| 1659 | av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n"); |
||
| 1660 | return AVERROR_INVALIDDATA; |
||
| 1661 | } |
||
| 1662 | if ((!s->last_picture_ptr || !s->last_picture_ptr->f.data[0]) && |
||
| 1663 | si.type == AV_PICTURE_TYPE_B) { |
||
| 1664 | av_log(avctx, AV_LOG_ERROR, "Invalid decoder state: B-frame without " |
||
| 1665 | "reference data.\n"); |
||
| 1666 | return AVERROR_INVALIDDATA; |
||
| 1667 | } |
||
| 1668 | if( (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B) |
||
| 1669 | || (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I) |
||
| 1670 | || avctx->skip_frame >= AVDISCARD_ALL) |
||
| 1671 | return avpkt->size; |
||
| 1672 | |||
| 1673 | /* first slice */ |
||
| 1674 | if (si.start == 0) { |
||
| 1675 | if (s->mb_num_left > 0) { |
||
| 1676 | av_log(avctx, AV_LOG_ERROR, "New frame but still %d MB left.\n", |
||
| 1677 | s->mb_num_left); |
||
| 1678 | ff_er_frame_end(&s->er); |
||
| 1679 | ff_MPV_frame_end(s); |
||
| 1680 | } |
||
| 1681 | |||
| 1682 | if (s->width != si.width || s->height != si.height) { |
||
| 1683 | int err; |
||
| 1684 | |||
| 1685 | av_log(s->avctx, AV_LOG_WARNING, "Changing dimensions to %dx%d\n", |
||
| 1686 | si.width, si.height); |
||
| 1687 | |||
| 1688 | if (av_image_check_size(si.width, si.height, 0, s->avctx)) |
||
| 1689 | return AVERROR_INVALIDDATA; |
||
| 1690 | |||
| 1691 | s->avctx->sample_aspect_ratio = update_sar( |
||
| 1692 | s->width, s->height, s->avctx->sample_aspect_ratio, |
||
| 1693 | si.width, si.height); |
||
| 1694 | s->width = si.width; |
||
| 1695 | s->height = si.height; |
||
| 1696 | avcodec_set_dimensions(s->avctx, s->width, s->height); |
||
| 1697 | if ((err = ff_MPV_common_frame_size_change(s)) < 0) |
||
| 1698 | return err; |
||
| 1699 | if ((err = rv34_decoder_realloc(r)) < 0) |
||
| 1700 | return err; |
||
| 1701 | } |
||
| 1702 | s->pict_type = si.type ? si.type : AV_PICTURE_TYPE_I; |
||
| 1703 | if (ff_MPV_frame_start(s, s->avctx) < 0) |
||
| 1704 | return -1; |
||
| 1705 | ff_mpeg_er_frame_start(s); |
||
| 1706 | if (!r->tmp_b_block_base) { |
||
| 1707 | int i; |
||
| 1708 | |||
| 1709 | r->tmp_b_block_base = av_malloc(s->linesize * 48); |
||
| 1710 | for (i = 0; i < 2; i++) |
||
| 1711 | r->tmp_b_block_y[i] = r->tmp_b_block_base |
||
| 1712 | + i * 16 * s->linesize; |
||
| 1713 | for (i = 0; i < 4; i++) |
||
| 1714 | r->tmp_b_block_uv[i] = r->tmp_b_block_base + 32 * s->linesize |
||
| 1715 | + (i >> 1) * 8 * s->uvlinesize |
||
| 1716 | + (i & 1) * 16; |
||
| 1717 | } |
||
| 1718 | r->cur_pts = si.pts; |
||
| 1719 | if (s->pict_type != AV_PICTURE_TYPE_B) { |
||
| 1720 | r->last_pts = r->next_pts; |
||
| 1721 | r->next_pts = r->cur_pts; |
||
| 1722 | } else { |
||
| 1723 | int refdist = GET_PTS_DIFF(r->next_pts, r->last_pts); |
||
| 1724 | int dist0 = GET_PTS_DIFF(r->cur_pts, r->last_pts); |
||
| 1725 | int dist1 = GET_PTS_DIFF(r->next_pts, r->cur_pts); |
||
| 1726 | |||
| 1727 | if(!refdist){ |
||
| 1728 | r->mv_weight1 = r->mv_weight2 = r->weight1 = r->weight2 = 8192; |
||
| 1729 | r->scaled_weight = 0; |
||
| 1730 | }else{ |
||
| 1731 | r->mv_weight1 = (dist0 << 14) / refdist; |
||
| 1732 | r->mv_weight2 = (dist1 << 14) / refdist; |
||
| 1733 | if((r->mv_weight1|r->mv_weight2) & 511){ |
||
| 1734 | r->weight1 = r->mv_weight1; |
||
| 1735 | r->weight2 = r->mv_weight2; |
||
| 1736 | r->scaled_weight = 0; |
||
| 1737 | }else{ |
||
| 1738 | r->weight1 = r->mv_weight1 >> 9; |
||
| 1739 | r->weight2 = r->mv_weight2 >> 9; |
||
| 1740 | r->scaled_weight = 1; |
||
| 1741 | } |
||
| 1742 | } |
||
| 1743 | } |
||
| 1744 | s->mb_x = s->mb_y = 0; |
||
| 1745 | ff_thread_finish_setup(s->avctx); |
||
| 1746 | } else if (HAVE_THREADS && |
||
| 1747 | (s->avctx->active_thread_type & FF_THREAD_FRAME)) { |
||
| 1748 | av_log(s->avctx, AV_LOG_ERROR, "Decoder needs full frames in frame " |
||
| 1749 | "multithreading mode (start MB is %d).\n", si.start); |
||
| 1750 | return AVERROR_INVALIDDATA; |
||
| 1751 | } |
||
| 1752 | |||
| 1753 | for(i = 0; i < slice_count; i++){ |
||
| 1754 | int offset = get_slice_offset(avctx, slices_hdr, i); |
||
| 1755 | int size; |
||
| 1756 | if(i+1 == slice_count) |
||
| 1757 | size = buf_size - offset; |
||
| 1758 | else |
||
| 1759 | size = get_slice_offset(avctx, slices_hdr, i+1) - offset; |
||
| 1760 | |||
| 1761 | if(offset < 0 || offset > buf_size){ |
||
| 1762 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); |
||
| 1763 | break; |
||
| 1764 | } |
||
| 1765 | |||
| 1766 | r->si.end = s->mb_width * s->mb_height; |
||
| 1767 | s->mb_num_left = r->s.mb_x + r->s.mb_y*r->s.mb_width - r->si.start; |
||
| 1768 | |||
| 1769 | if(i+1 < slice_count){ |
||
| 1770 | if (get_slice_offset(avctx, slices_hdr, i+1) < 0 || |
||
| 1771 | get_slice_offset(avctx, slices_hdr, i+1) > buf_size) { |
||
| 1772 | av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); |
||
| 1773 | break; |
||
| 1774 | } |
||
| 1775 | init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, i+1), (buf_size-get_slice_offset(avctx, slices_hdr, i+1))*8); |
||
| 1776 | if(r->parse_slice_header(r, &r->s.gb, &si) < 0){ |
||
| 1777 | if(i+2 < slice_count) |
||
| 1778 | size = get_slice_offset(avctx, slices_hdr, i+2) - offset; |
||
| 1779 | else |
||
| 1780 | size = buf_size - offset; |
||
| 1781 | }else |
||
| 1782 | r->si.end = si.start; |
||
| 1783 | } |
||
| 1784 | if (size < 0 || size > buf_size - offset) { |
||
| 1785 | av_log(avctx, AV_LOG_ERROR, "Slice size is invalid\n"); |
||
| 1786 | break; |
||
| 1787 | } |
||
| 1788 | last = rv34_decode_slice(r, r->si.end, buf + offset, size); |
||
| 1789 | if(last) |
||
| 1790 | break; |
||
| 1791 | } |
||
| 1792 | |||
| 1793 | if (s->current_picture_ptr) { |
||
| 1794 | if (last) { |
||
| 1795 | if(r->loop_filter) |
||
| 1796 | r->loop_filter(r, s->mb_height - 1); |
||
| 1797 | |||
| 1798 | ret = finish_frame(avctx, pict); |
||
| 1799 | if (ret < 0) |
||
| 1800 | return ret; |
||
| 1801 | *got_picture_ptr = ret; |
||
| 1802 | } else if (HAVE_THREADS && |
||
| 1803 | (s->avctx->active_thread_type & FF_THREAD_FRAME)) { |
||
| 1804 | av_log(avctx, AV_LOG_INFO, "marking unfished frame as finished\n"); |
||
| 1805 | /* always mark the current frame as finished, frame-mt supports |
||
| 1806 | * only complete frames */ |
||
| 1807 | ff_er_frame_end(&s->er); |
||
| 1808 | ff_MPV_frame_end(s); |
||
| 1809 | s->mb_num_left = 0; |
||
| 1810 | ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); |
||
| 1811 | return AVERROR_INVALIDDATA; |
||
| 1812 | } |
||
| 1813 | } |
||
| 1814 | |||
| 1815 | return avpkt->size; |
||
| 1816 | } |
||
| 1817 | |||
| 1818 | av_cold int ff_rv34_decode_end(AVCodecContext *avctx) |
||
| 1819 | { |
||
| 1820 | RV34DecContext *r = avctx->priv_data; |
||
| 1821 | |||
| 1822 | ff_MPV_common_end(&r->s); |
||
| 1823 | rv34_decoder_free(r); |
||
| 1824 | |||
| 1825 | return 0; |
||
| 1826 | } |