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1 | /* |
2 | * H.26L/H.264/AVC/JVT/14496-10/... decoder | |
3 | * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | #include "h264.h" | |
23 | ||
24 | #undef MCFUNC | |
25 | ||
26 | #if CHROMA_IDC == 1 | |
27 | # define MCFUNC(n) FUNC(n ## _420) | |
28 | #elif CHROMA_IDC == 2 | |
29 | # define MCFUNC(n) FUNC(n ## _422) | |
30 | #elif CHROMA_IDC == 3 | |
31 | # define MCFUNC(n) FUNC(n ## _444) | |
32 | #endif | |
33 | ||
34 | #undef mc_part | |
35 | #define mc_part MCFUNC(mc_part) | |
36 | ||
37 | static void mc_part(H264Context *h, int n, int square, | |
38 | int height, int delta, | |
39 | uint8_t *dest_y, uint8_t *dest_cb, | |
40 | uint8_t *dest_cr, | |
41 | int x_offset, int y_offset, | |
42 | qpel_mc_func *qpix_put, | |
43 | h264_chroma_mc_func chroma_put, | |
44 | qpel_mc_func *qpix_avg, | |
45 | h264_chroma_mc_func chroma_avg, | |
46 | h264_weight_func *weight_op, | |
47 | h264_biweight_func *weight_avg, | |
48 | int list0, int list1) | |
49 | { | |
50 | if ((h->use_weight == 2 && list0 && list1 && | |
51 | (h->implicit_weight[h->ref_cache[0][scan8[n]]][h->ref_cache[1][scan8[n]]][h->mb_y & 1] != 32)) || | |
52 | h->use_weight == 1) | |
53 | mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr, | |
54 | x_offset, y_offset, qpix_put, chroma_put, | |
55 | weight_op[0], weight_op[1], weight_avg[0], | |
56 | weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC); | |
57 | else | |
58 | mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr, | |
59 | x_offset, y_offset, qpix_put, chroma_put, qpix_avg, | |
60 | chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC); | |
61 | } | |
62 | ||
63 | static void MCFUNC(hl_motion)(H264Context *h, uint8_t *dest_y, | |
64 | uint8_t *dest_cb, uint8_t *dest_cr, | |
65 | qpel_mc_func(*qpix_put)[16], | |
66 | h264_chroma_mc_func(*chroma_put), | |
67 | qpel_mc_func(*qpix_avg)[16], | |
68 | h264_chroma_mc_func(*chroma_avg), | |
69 | h264_weight_func *weight_op, | |
70 | h264_biweight_func *weight_avg) | |
71 | { | |
72 | const int mb_xy = h->mb_xy; | |
73 | const int mb_type = h->cur_pic.mb_type[mb_xy]; | |
74 | ||
75 | av_assert2(IS_INTER(mb_type)); | |
76 | ||
77 | if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME)) | |
78 | await_references(h); | |
79 | prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC); | |
80 | ||
81 | if (IS_16X16(mb_type)) { | |
82 | mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0, | |
83 | qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0], | |
84 | weight_op, weight_avg, | |
85 | IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); | |
86 | } else if (IS_16X8(mb_type)) { | |
87 | mc_part(h, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0, | |
88 | qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], | |
89 | weight_op, weight_avg, | |
90 | IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); | |
91 | mc_part(h, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4, | |
92 | qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], | |
93 | weight_op, weight_avg, | |
94 | IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); | |
95 | } else if (IS_8X16(mb_type)) { | |
96 | mc_part(h, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0, | |
97 | qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], | |
98 | &weight_op[1], &weight_avg[1], | |
99 | IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); | |
100 | mc_part(h, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0, | |
101 | qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], | |
102 | &weight_op[1], &weight_avg[1], | |
103 | IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); | |
104 | } else { | |
105 | int i; | |
106 | ||
107 | av_assert2(IS_8X8(mb_type)); | |
108 | ||
109 | for (i = 0; i < 4; i++) { | |
110 | const int sub_mb_type = h->sub_mb_type[i]; | |
111 | const int n = 4 * i; | |
112 | int x_offset = (i & 1) << 2; | |
113 | int y_offset = (i & 2) << 1; | |
114 | ||
115 | if (IS_SUB_8X8(sub_mb_type)) { | |
116 | mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr, | |
117 | x_offset, y_offset, | |
118 | qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], | |
119 | &weight_op[1], &weight_avg[1], | |
120 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
121 | } else if (IS_SUB_8X4(sub_mb_type)) { | |
122 | mc_part(h, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, | |
123 | x_offset, y_offset, | |
124 | qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], | |
125 | &weight_op[1], &weight_avg[1], | |
126 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
127 | mc_part(h, n + 2, 0, 4, 4 << PIXEL_SHIFT, | |
128 | dest_y, dest_cb, dest_cr, x_offset, y_offset + 2, | |
129 | qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], | |
130 | &weight_op[1], &weight_avg[1], | |
131 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
132 | } else if (IS_SUB_4X8(sub_mb_type)) { | |
133 | mc_part(h, n, 0, 8, 4 * h->mb_linesize, | |
134 | dest_y, dest_cb, dest_cr, x_offset, y_offset, | |
135 | qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], | |
136 | &weight_op[2], &weight_avg[2], | |
137 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
138 | mc_part(h, n + 1, 0, 8, 4 * h->mb_linesize, | |
139 | dest_y, dest_cb, dest_cr, x_offset + 2, y_offset, | |
140 | qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], | |
141 | &weight_op[2], &weight_avg[2], | |
142 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
143 | } else { | |
144 | int j; | |
145 | av_assert2(IS_SUB_4X4(sub_mb_type)); | |
146 | for (j = 0; j < 4; j++) { | |
147 | int sub_x_offset = x_offset + 2 * (j & 1); | |
148 | int sub_y_offset = y_offset + (j & 2); | |
149 | mc_part(h, n + j, 1, 4, 0, | |
150 | dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset, | |
151 | qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], | |
152 | &weight_op[2], &weight_avg[2], | |
153 | IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); | |
154 | } | |
155 | } | |
156 | } | |
157 | } | |
158 | ||
159 | prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC); | |
160 | } | |
161 |