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https://gitee.com/openharmony/third_party_ffmpeg
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c0f2ad3dbd
* commit '218d6844b37d339ffbf2044ad07d8be7767e2734': h264dsp: Factorize code into a new function, h264_find_start_code_candidate Conflicts: libavcodec/h264_parser.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
186 lines
6.5 KiB
C
186 lines
6.5 KiB
C
/*
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* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
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* Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* H.264 / AVC / MPEG4 part10 DSP functions.
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include <stdint.h>
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "avcodec.h"
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#include "h264dsp.h"
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#include "h264idct.h"
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#include "libavutil/common.h"
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#define BIT_DEPTH 8
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#include "h264dsp_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 9
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#include "h264dsp_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 10
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#include "h264dsp_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 12
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#include "h264dsp_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 14
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#include "h264dsp_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 8
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#include "h264addpx_template.c"
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#undef BIT_DEPTH
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#define BIT_DEPTH 16
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#include "h264addpx_template.c"
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#undef BIT_DEPTH
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static int h264_find_start_code_candidate_c(const uint8_t *buf, int size)
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{
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int i = 0;
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#if HAVE_FAST_UNALIGNED
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/* we check i < size instead of i + 3 / 7 because it is
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* simpler and there must be FF_INPUT_BUFFER_PADDING_SIZE
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* bytes at the end.
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*/
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# if HAVE_FAST_64BIT
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while (i < size &&
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!((~*(const uint64_t *)(buf + i) &
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(*(const uint64_t *)(buf + i) - 0x0101010101010101ULL)) &
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0x8080808080808080ULL))
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i += 8;
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# else
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while (i < size &&
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!((~*(const uint32_t *)(buf + i) &
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(*(const uint32_t *)(buf + i) - 0x01010101U)) &
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0x80808080U))
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i += 4;
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# endif
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#endif
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for (; i < size; i++)
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if (!buf[i])
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break;
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return i;
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}
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av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
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const int chroma_format_idc)
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{
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#undef FUNC
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#define FUNC(a, depth) a ## _ ## depth ## _c
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#define ADDPX_DSP(depth) \
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c->h264_add_pixels4_clear = FUNC(ff_h264_add_pixels4, depth);\
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c->h264_add_pixels8_clear = FUNC(ff_h264_add_pixels8, depth)
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if (bit_depth > 8 && bit_depth <= 16) {
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ADDPX_DSP(16);
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} else {
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ADDPX_DSP(8);
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}
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#define H264_DSP(depth) \
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c->h264_idct_add= FUNC(ff_h264_idct_add, depth);\
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c->h264_idct8_add= FUNC(ff_h264_idct8_add, depth);\
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c->h264_idct_dc_add= FUNC(ff_h264_idct_dc_add, depth);\
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c->h264_idct8_dc_add= FUNC(ff_h264_idct8_dc_add, depth);\
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c->h264_idct_add16 = FUNC(ff_h264_idct_add16, depth);\
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c->h264_idct8_add4 = FUNC(ff_h264_idct8_add4, depth);\
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if (chroma_format_idc == 1)\
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c->h264_idct_add8 = FUNC(ff_h264_idct_add8, depth);\
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else\
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c->h264_idct_add8 = FUNC(ff_h264_idct_add8_422, depth);\
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c->h264_idct_add16intra= FUNC(ff_h264_idct_add16intra, depth);\
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c->h264_luma_dc_dequant_idct= FUNC(ff_h264_luma_dc_dequant_idct, depth);\
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if (chroma_format_idc == 1)\
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c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma_dc_dequant_idct, depth);\
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else\
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c->h264_chroma_dc_dequant_idct= FUNC(ff_h264_chroma422_dc_dequant_idct, depth);\
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\
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c->weight_h264_pixels_tab[0]= FUNC(weight_h264_pixels16, depth);\
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c->weight_h264_pixels_tab[1]= FUNC(weight_h264_pixels8, depth);\
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c->weight_h264_pixels_tab[2]= FUNC(weight_h264_pixels4, depth);\
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c->weight_h264_pixels_tab[3]= FUNC(weight_h264_pixels2, depth);\
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c->biweight_h264_pixels_tab[0]= FUNC(biweight_h264_pixels16, depth);\
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c->biweight_h264_pixels_tab[1]= FUNC(biweight_h264_pixels8, depth);\
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c->biweight_h264_pixels_tab[2]= FUNC(biweight_h264_pixels4, depth);\
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c->biweight_h264_pixels_tab[3]= FUNC(biweight_h264_pixels2, depth);\
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\
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c->h264_v_loop_filter_luma= FUNC(h264_v_loop_filter_luma, depth);\
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c->h264_h_loop_filter_luma= FUNC(h264_h_loop_filter_luma, depth);\
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c->h264_h_loop_filter_luma_mbaff= FUNC(h264_h_loop_filter_luma_mbaff, depth);\
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c->h264_v_loop_filter_luma_intra= FUNC(h264_v_loop_filter_luma_intra, depth);\
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c->h264_h_loop_filter_luma_intra= FUNC(h264_h_loop_filter_luma_intra, depth);\
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c->h264_h_loop_filter_luma_mbaff_intra= FUNC(h264_h_loop_filter_luma_mbaff_intra, depth);\
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c->h264_v_loop_filter_chroma= FUNC(h264_v_loop_filter_chroma, depth);\
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if (chroma_format_idc == 1)\
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c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma, depth);\
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else\
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c->h264_h_loop_filter_chroma= FUNC(h264_h_loop_filter_chroma422, depth);\
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if (chroma_format_idc == 1)\
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c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma_mbaff, depth);\
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else\
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c->h264_h_loop_filter_chroma_mbaff= FUNC(h264_h_loop_filter_chroma422_mbaff, depth);\
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c->h264_v_loop_filter_chroma_intra= FUNC(h264_v_loop_filter_chroma_intra, depth);\
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if (chroma_format_idc == 1)\
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c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma_intra, depth);\
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else\
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c->h264_h_loop_filter_chroma_intra= FUNC(h264_h_loop_filter_chroma422_intra, depth);\
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if (chroma_format_idc == 1)\
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c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma_mbaff_intra, depth);\
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else\
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c->h264_h_loop_filter_chroma_mbaff_intra= FUNC(h264_h_loop_filter_chroma422_mbaff_intra, depth);\
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c->h264_loop_filter_strength= NULL;
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switch (bit_depth) {
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case 9:
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H264_DSP(9);
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break;
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case 10:
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H264_DSP(10);
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break;
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case 12:
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H264_DSP(12);
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break;
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case 14:
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H264_DSP(14);
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break;
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default:
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av_assert0(bit_depth<=8);
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H264_DSP(8);
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break;
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}
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c->h264_find_start_code_candidate = h264_find_start_code_candidate_c;
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if (ARCH_ARM) ff_h264dsp_init_arm(c, bit_depth, chroma_format_idc);
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if (ARCH_PPC) ff_h264dsp_init_ppc(c, bit_depth, chroma_format_idc);
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if (ARCH_X86) ff_h264dsp_init_x86(c, bit_depth, chroma_format_idc);
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}
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