2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
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.
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.
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
24 * H.264 / AVC / MPEG4 part10 DSP functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
29 #include "libavutil/attributes.h"
30 #include "libavutil/avassert.h"
35 #include "libavutil/common.h"
38 #include "h264dsp_template.c"
42 #include "h264dsp_template.c"
46 #include "h264dsp_template.c"
50 #include "h264dsp_template.c"
54 #include "h264dsp_template.c"
58 #include "h264addpx_template.c"
62 #include "h264addpx_template.c"
65 static int h264_find_start_code_candidate_c(const uint8_t *buf, int size)
68 #if HAVE_FAST_UNALIGNED
69 /* we check i < size instead of i + 3 / 7 because it is
70 * simpler and there must be FF_INPUT_BUFFER_PADDING_SIZE
75 !((~*(const uint64_t *)(buf + i) &
76 (*(const uint64_t *)(buf + i) - 0x0101010101010101ULL)) &
77 0x8080808080808080ULL))
81 !((~*(const uint32_t *)(buf + i) &
82 (*(const uint32_t *)(buf + i) - 0x01010101U)) &
93 av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
94 const int chroma_format_idc)
97 #define FUNC(a, depth) a ## _ ## depth ## _c
99 #define ADDPX_DSP(depth) \
100 c->h264_add_pixels4_clear = FUNC(ff_h264_add_pixels4, depth);\
101 c->h264_add_pixels8_clear = FUNC(ff_h264_add_pixels8, depth)
103 if (bit_depth > 8 && bit_depth <= 16) {
109 #define H264_DSP(depth) \
110 c->h264_idct_add= FUNC(ff_h264_idct_add, depth);\
111 c->h264_idct8_add= FUNC(ff_h264_idct8_add, depth);\
112 c->h264_idct_dc_add= FUNC(ff_h264_idct_dc_add, depth);\
113 c->h264_idct8_dc_add= FUNC(ff_h264_idct8_dc_add, depth);\
114 c->h264_idct_add16 = FUNC(ff_h264_idct_add16, depth);\
115 c->h264_idct8_add4 = FUNC(ff_h264_idct8_add4, depth);\
116 if (chroma_format_idc == 1)\
117 c->h264_idct_add8 = FUNC(ff_h264_idct_add8, depth);\
119 c->h264_idct_add8 = FUNC(ff_h264_idct_add8_422, depth);\
120 c->h264_idct_add16intra= FUNC(ff_h264_idct_add16intra, depth);\
121 c->h264_luma_dc_dequant_idct= FUNC(ff_h264_luma_dc_dequant_idct, depth);\
122 if (chroma_format_idc == 1)\
123 c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma_dc_dequant_idct, depth);\
125 c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma422_dc_dequant_idct, depth);\
127 c->weight_h264_pixels_tab[0]= FUNC(weight_h264_pixels16, depth);\
128 c->weight_h264_pixels_tab[1]= FUNC(weight_h264_pixels8, depth);\
129 c->weight_h264_pixels_tab[2]= FUNC(weight_h264_pixels4, depth);\
130 c->weight_h264_pixels_tab[3]= FUNC(weight_h264_pixels2, depth);\
131 c->biweight_h264_pixels_tab[0]= FUNC(biweight_h264_pixels16, depth);\
132 c->biweight_h264_pixels_tab[1]= FUNC(biweight_h264_pixels8, depth);\
133 c->biweight_h264_pixels_tab[2]= FUNC(biweight_h264_pixels4, depth);\
134 c->biweight_h264_pixels_tab[3]= FUNC(biweight_h264_pixels2, depth);\
136 c->h264_v_loop_filter_luma= FUNC(h264_v_loop_filter_luma, depth);\
137 c->h264_h_loop_filter_luma= FUNC(h264_h_loop_filter_luma, depth);\
138 c->h264_h_loop_filter_luma_mbaff= FUNC(h264_h_loop_filter_luma_mbaff, depth);\
139 c->h264_v_loop_filter_luma_intra= FUNC(h264_v_loop_filter_luma_intra, depth);\
140 c->h264_h_loop_filter_luma_intra= FUNC(h264_h_loop_filter_luma_intra, depth);\
141 c->h264_h_loop_filter_luma_mbaff_intra= FUNC(h264_h_loop_filter_luma_mbaff_intra, depth);\
142 c->h264_v_loop_filter_chroma= FUNC(h264_v_loop_filter_chroma, depth);\
143 if (chroma_format_idc == 1)\
144 c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma, depth);\
146 c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma422, depth);\
147 if (chroma_format_idc == 1)\
148 c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma_mbaff, depth);\
150 c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma422_mbaff, depth);\
151 c->h264_v_loop_filter_chroma_intra= FUNC(h264_v_loop_filter_chroma_intra, depth);\
152 if (chroma_format_idc == 1)\
153 c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma_intra, depth);\
155 c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma422_intra, depth);\
156 if (chroma_format_idc == 1)\
157 c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma_mbaff_intra, depth);\
159 c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma422_mbaff_intra, depth);\
160 c->h264_loop_filter_strength= NULL;
176 av_assert0(bit_depth<=8);
180 c->h264_find_start_code_candidate = h264_find_start_code_candidate_c;
182 if (ARCH_ARM) ff_h264dsp_init_arm(c, bit_depth, chroma_format_idc);
183 if (ARCH_PPC) ff_h264dsp_init_ppc(c, bit_depth, chroma_format_idc);
184 if (ARCH_X86) ff_h264dsp_init_x86(c, bit_depth, chroma_format_idc);