FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264dsp.c
Date: 2026-01-16 07:34:38
Exec Total Coverage
Lines: 24 24 100.0%
Functions: 1 1 100.0%
Branches: 53 65 81.5%
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1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003-2010 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 /**
23 * @file
24 * H.264 / AVC / MPEG-4 part10 DSP functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include <stdint.h>
29
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32
33 #include "h264dsp.h"
34 #include "h264idct.h"
35 #include "startcode.h"
36 #include "libavutil/common.h"
37
38 #define BIT_DEPTH 8
39 #include "h264dsp_template.c"
40 #undef BIT_DEPTH
41
42 #define BIT_DEPTH 9
43 #include "h264dsp_template.c"
44 #undef BIT_DEPTH
45
46 #define BIT_DEPTH 10
47 #include "h264dsp_template.c"
48 #undef BIT_DEPTH
49
50 #define BIT_DEPTH 12
51 #include "h264dsp_template.c"
52 #undef BIT_DEPTH
53
54 #define BIT_DEPTH 14
55 #include "h264dsp_template.c"
56 #undef BIT_DEPTH
57
58 #define BIT_DEPTH 8
59 #include "h264addpx_template.c"
60 #undef BIT_DEPTH
61
62 #define BIT_DEPTH 16
63 #include "h264addpx_template.c"
64 #undef BIT_DEPTH
65
66 1433 av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
67 const int chroma_format_idc)
68 {
69 #undef FUNC
70 #define FUNC(a, depth) a ## _ ## depth ## _c
71
72 #define SET_PIXSIZE_FUNCS(depth) \
73 c->h264_luma_dc_dequant_idct= FUNC(ff_h264_luma_dc_dequant_idct, depth);\
74 if (chroma_format_idc <= 1)\
75 c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma_dc_dequant_idct, depth);\
76 else\
77 c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma422_dc_dequant_idct, depth);\
78 c->h264_add_pixels4_clear = FUNC(ff_h264_add_pixels4, depth);\
79 c->h264_add_pixels8_clear = FUNC(ff_h264_add_pixels8, depth)
80
81
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 1433 if (bit_depth > 8 && bit_depth <= 16) {
82
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 308 SET_PIXSIZE_FUNCS(16);
83 } else {
84
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 1125 SET_PIXSIZE_FUNCS(8);
85 }
86
87 #define H264_DSP(depth) \
88 c->h264_idct_add= FUNC(ff_h264_idct_add, depth);\
89 c->h264_idct8_add= FUNC(ff_h264_idct8_add, depth);\
90 c->h264_idct_dc_add= FUNC(ff_h264_idct_dc_add, depth);\
91 c->h264_idct8_dc_add= FUNC(ff_h264_idct8_dc_add, depth);\
92 c->h264_idct_add16 = FUNC(ff_h264_idct_add16, depth);\
93 c->h264_idct8_add4 = FUNC(ff_h264_idct8_add4, depth);\
94 if (chroma_format_idc <= 1)\
95 c->h264_idct_add8 = FUNC(ff_h264_idct_add8, depth);\
96 else\
97 c->h264_idct_add8 = FUNC(ff_h264_idct_add8_422, depth);\
98 c->h264_idct_add16intra= FUNC(ff_h264_idct_add16intra, depth);\
99 \
100 c->weight_h264_pixels_tab[0]= FUNC(weight_h264_pixels16, depth);\
101 c->weight_h264_pixels_tab[1]= FUNC(weight_h264_pixels8, depth);\
102 c->weight_h264_pixels_tab[2]= FUNC(weight_h264_pixels4, depth);\
103 c->weight_h264_pixels_tab[3]= FUNC(weight_h264_pixels2, depth);\
104 c->biweight_h264_pixels_tab[0]= FUNC(biweight_h264_pixels16, depth);\
105 c->biweight_h264_pixels_tab[1]= FUNC(biweight_h264_pixels8, depth);\
106 c->biweight_h264_pixels_tab[2]= FUNC(biweight_h264_pixels4, depth);\
107 c->biweight_h264_pixels_tab[3]= FUNC(biweight_h264_pixels2, depth);\
108 \
109 c->h264_v_loop_filter_luma= FUNC(h264_v_loop_filter_luma, depth);\
110 c->h264_h_loop_filter_luma= FUNC(h264_h_loop_filter_luma, depth);\
111 c->h264_h_loop_filter_luma_mbaff= FUNC(h264_h_loop_filter_luma_mbaff, depth);\
112 c->h264_v_loop_filter_luma_intra= FUNC(h264_v_loop_filter_luma_intra, depth);\
113 c->h264_h_loop_filter_luma_intra= FUNC(h264_h_loop_filter_luma_intra, depth);\
114 c->h264_h_loop_filter_luma_mbaff_intra= FUNC(h264_h_loop_filter_luma_mbaff_intra, depth);\
115 c->h264_v_loop_filter_chroma= FUNC(h264_v_loop_filter_chroma, depth);\
116 if (chroma_format_idc <= 1)\
117 c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma, depth);\
118 else\
119 c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma422, depth);\
120 if (chroma_format_idc <= 1)\
121 c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma_mbaff, depth);\
122 else\
123 c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma422_mbaff, depth);\
124 c->h264_v_loop_filter_chroma_intra= FUNC(h264_v_loop_filter_chroma_intra, depth);\
125 if (chroma_format_idc <= 1)\
126 c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma_intra, depth);\
127 else\
128 c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma422_intra, depth);\
129 if (chroma_format_idc <= 1)\
130 c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma_mbaff_intra, depth);\
131 else\
132 c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma422_mbaff_intra, depth);\
133 c->h264_loop_filter_strength= NULL;
134
135
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 1433 switch (bit_depth) {
136 103 case 9:
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 103 H264_DSP(9);
138 103 break;
139 149 case 10:
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 149 H264_DSP(10);
141 149 break;
142 28 case 12:
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 28 H264_DSP(12);
144 28 break;
145 28 case 14:
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 28 H264_DSP(14);
147 28 break;
148 1125 default:
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 1125 av_assert0(bit_depth<=8);
150
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 1125 H264_DSP(8);
151 1125 break;
152 }
153 1433 c->startcode_find_candidate = ff_startcode_find_candidate_c;
154
155 #if ARCH_AARCH64
156 ff_h264dsp_init_aarch64(c, bit_depth, chroma_format_idc);
157 #elif ARCH_ARM
158 ff_h264dsp_init_arm(c, bit_depth, chroma_format_idc);
159 #elif ARCH_PPC
160 ff_h264dsp_init_ppc(c, bit_depth, chroma_format_idc);
161 #elif ARCH_RISCV
162 ff_h264dsp_init_riscv(c, bit_depth, chroma_format_idc);
163 #elif ARCH_X86 && HAVE_X86ASM
164 1433 ff_h264dsp_init_x86(c, bit_depth, chroma_format_idc);
165 #elif ARCH_MIPS
166 ff_h264dsp_init_mips(c, bit_depth, chroma_format_idc);
167 #elif ARCH_LOONGARCH
168 ff_h264dsp_init_loongarch(c, bit_depth, chroma_format_idc);
169 #endif
170 1433 }
171