FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264_mc_template.c
Date: 2026-01-16 07:34:38
Exec Total Coverage
Lines: 55 55 100.0%
Functions: 12 16 75.0%
Branches: 32 32 100.0%
Line Branch Exec Source
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 "h264dec.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 44654656 static void mc_part(const H264Context *h, H264SliceContext *sl,
38 int n, int square,
39 int height, int delta,
40 uint8_t *dest_y, uint8_t *dest_cb,
41 uint8_t *dest_cr,
42 int x_offset, int y_offset,
43 const qpel_mc_func *qpix_put,
44 h264_chroma_mc_func chroma_put,
45 const qpel_mc_func *qpix_avg,
46 h264_chroma_mc_func chroma_avg,
47 const h264_weight_func *weight_op,
48 const h264_biweight_func *weight_avg,
49 int list0, int list1)
50 {
51
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 44654656 if ((sl->pwt.use_weight == 2 && list0 && list1 &&
52
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 1347700 (sl->pwt.implicit_weight[sl->ref_cache[0][scan8[n]]][sl->ref_cache[1][scan8[n]]][sl->mb_y & 1] != 32)) ||
53
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 44112356 sl->pwt.use_weight == 1)
54 3213150 mc_part_weighted(h, sl, n, square, height, delta, dest_y, dest_cb, dest_cr,
55 x_offset, y_offset, qpix_put, chroma_put,
56 3213150 weight_op[0], weight_op[1], weight_avg[0],
57 3213150 weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC);
58 else
59 41441506 mc_part_std(h, sl, n, square, height, delta, dest_y, dest_cb, dest_cr,
60 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
61 18483544 chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC);
62 44654656 }
63
64 22412318 static void MCFUNC(hl_motion)(const H264Context *h, H264SliceContext *sl,
65 uint8_t *dest_y,
66 uint8_t *dest_cb, uint8_t *dest_cr,
67 const qpel_mc_func(*qpix_put)[16],
68 const h264_chroma_mc_func(*chroma_put),
69 const qpel_mc_func(*qpix_avg)[16],
70 const h264_chroma_mc_func(*chroma_avg),
71 const h264_weight_func *weight_op,
72 const h264_biweight_func *weight_avg)
73 {
74 22412318 const int mb_xy = sl->mb_xy;
75 22412318 const int mb_type = h->cur_pic.mb_type[mb_xy];
76
77 av_assert2(IS_INTER(mb_type));
78
79
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 22412318 if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))
80 190936 await_references(h, sl);
81
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 22412318 if (USES_LIST(mb_type, 0))
82 20764202 prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC);
83
84
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 22412318 if (IS_16X16(mb_type)) {
85 16887682 mc_part(h, sl, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
86 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
87 weight_op, weight_avg,
88 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
89
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 5524636 } else if (IS_16X8(mb_type)) {
90 1370844 mc_part(h, sl, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,
91 1370844 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
92 weight_op, weight_avg,
93 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
94 1370844 mc_part(h, sl, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,
95 1370844 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
96 weight_op, weight_avg,
97 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
98
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 4153792 } else if (IS_8X16(mb_type)) {
99 1229824 mc_part(h, sl, 0, 0, 16, 8 * sl->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
100 1229824 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
101 &weight_op[1], &weight_avg[1],
102 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
103 1229824 mc_part(h, sl, 4, 0, 16, 8 * sl->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
104 1229824 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
105 &weight_op[1], &weight_avg[1],
106 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
107 } else {
108 int i;
109
110 av_assert2(IS_8X8(mb_type));
111
112
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 14619840 for (i = 0; i < 4; i++) {
113 11695872 const int sub_mb_type = sl->sub_mb_type[i];
114 11695872 const int n = 4 * i;
115 11695872 int x_offset = (i & 1) << 2;
116 11695872 int y_offset = (i & 2) << 1;
117
118
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 11695872 if (IS_SUB_8X8(sub_mb_type)) {
119 5378010 mc_part(h, sl, n, 1, 8, 0, dest_y, dest_cb, dest_cr,
120 x_offset, y_offset,
121 5378010 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
122 &weight_op[1], &weight_avg[1],
123 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
124
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 6317862 } else if (IS_SUB_8X4(sub_mb_type)) {
125 2943228 mc_part(h, sl, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,
126 x_offset, y_offset,
127 2943228 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
128 &weight_op[1], &weight_avg[1],
129 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
130 2943228 mc_part(h, sl, n + 2, 0, 4, 4 << PIXEL_SHIFT,
131 dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,
132 2943228 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
133 &weight_op[1], &weight_avg[1],
134 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
135
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 3374634 } else if (IS_SUB_4X8(sub_mb_type)) {
136 1098682 mc_part(h, sl, n, 0, 8, 4 * sl->mb_linesize,
137 dest_y, dest_cb, dest_cr, x_offset, y_offset,
138 1098682 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
139 &weight_op[2], &weight_avg[2],
140 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
141 1098682 mc_part(h, sl, n + 1, 0, 8, 4 * sl->mb_linesize,
142 dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,
143 1098682 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
144 &weight_op[2], &weight_avg[2],
145 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
146 } else {
147 int j;
148 av_assert2(IS_SUB_4X4(sub_mb_type));
149
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 11379760 for (j = 0; j < 4; j++) {
150 9103808 int sub_x_offset = x_offset + 2 * (j & 1);
151 9103808 int sub_y_offset = y_offset + (j & 2);
152 9103808 mc_part(h, sl, n + j, 1, 4, 0,
153 dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
154 9103808 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
155 &weight_op[2], &weight_avg[2],
156 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
157 }
158 }
159 }
160 }
161
162
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 22412318 if (USES_LIST(mb_type, 1))
163 9319010 prefetch_motion(h, sl, 1, PIXEL_SHIFT, CHROMA_IDC);
164 22412318 }
165