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/*
* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
* Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/** |
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* @file |
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* H.264 / AVC / MPEG4 part10 DSP functions.
* @author Michael Niedermayer <michaelni@gmx.at>
*/
#include <stdint.h> |
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|
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#include "libavutil/attributes.h" |
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#include "libavutil/avassert.h" |
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|
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#include "avcodec.h"
#include "h264dsp.h" |
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#include "h264idct.h" |
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#include "libavutil/common.h" |
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|
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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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|
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#define BIT_DEPTH 9 |
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#include "h264dsp_template.c" |
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#undef BIT_DEPTH
#define BIT_DEPTH 10 |
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#include "h264dsp_template.c" |
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#undef BIT_DEPTH |
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|
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#define BIT_DEPTH 12
#include "h264dsp_template.c"
#undef BIT_DEPTH
#define BIT_DEPTH 14
#include "h264dsp_template.c"
#undef BIT_DEPTH
|
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#define BIT_DEPTH 8
#include "h264addpx_template.c"
#undef BIT_DEPTH
#define BIT_DEPTH 16
#include "h264addpx_template.c"
#undef BIT_DEPTH
|
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static int h264_find_start_code_candidate_c(const uint8_t *buf, int size)
{
int i = 0;
#if HAVE_FAST_UNALIGNED
/* we check i < size instead of i + 3 / 7 because it is
* simpler and there must be FF_INPUT_BUFFER_PADDING_SIZE
* bytes at the end.
*/ |
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# if HAVE_FAST_64BIT |
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while (i < size &&
!((~*(const uint64_t *)(buf + i) &
(*(const uint64_t *)(buf + i) - 0x0101010101010101ULL)) &
0x8080808080808080ULL))
i += 8; |
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# else |
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while (i < size &&
!((~*(const uint32_t *)(buf + i) &
(*(const uint32_t *)(buf + i) - 0x01010101U)) &
0x80808080U))
i += 4; |
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# endif |
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#endif
for (; i < size; i++)
if (!buf[i])
break;
return i;
}
|
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av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
const int chroma_format_idc) |
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{
#undef FUNC
#define FUNC(a, depth) a ## _ ## depth ## _c |
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|
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#define ADDPX_DSP(depth) \ |
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c->h264_add_pixels4_clear = FUNC(ff_h264_add_pixels4, depth);\
c->h264_add_pixels8_clear = FUNC(ff_h264_add_pixels8, depth) |
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if (bit_depth > 8 && bit_depth <= 16) {
ADDPX_DSP(16);
} else {
ADDPX_DSP(8);
}
|
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#define H264_DSP(depth) \ |
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c->h264_idct_add= FUNC(ff_h264_idct_add, depth);\
c->h264_idct8_add= FUNC(ff_h264_idct8_add, depth);\
c->h264_idct_dc_add= FUNC(ff_h264_idct_dc_add, depth);\
c->h264_idct8_dc_add= FUNC(ff_h264_idct8_dc_add, depth);\
c->h264_idct_add16 = FUNC(ff_h264_idct_add16, depth);\
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);\
else\
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);\
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);\
else\
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);\
c->weight_h264_pixels_tab[1]= FUNC(weight_h264_pixels8, depth);\
c->weight_h264_pixels_tab[2]= FUNC(weight_h264_pixels4, depth);\
c->weight_h264_pixels_tab[3]= FUNC(weight_h264_pixels2, depth);\
c->biweight_h264_pixels_tab[0]= FUNC(biweight_h264_pixels16, depth);\
c->biweight_h264_pixels_tab[1]= FUNC(biweight_h264_pixels8, depth);\
c->biweight_h264_pixels_tab[2]= FUNC(biweight_h264_pixels4, depth);\
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);\
c->h264_h_loop_filter_luma= FUNC(h264_h_loop_filter_luma, depth);\
c->h264_h_loop_filter_luma_mbaff= FUNC(h264_h_loop_filter_luma_mbaff, depth);\
c->h264_v_loop_filter_luma_intra= FUNC(h264_v_loop_filter_luma_intra, depth);\
c->h264_h_loop_filter_luma_intra= FUNC(h264_h_loop_filter_luma_intra, depth);\
c->h264_h_loop_filter_luma_mbaff_intra= FUNC(h264_h_loop_filter_luma_mbaff_intra, depth);\
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);\
else\
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);\
else\
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);\
else\
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);\
else\
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:
H264_DSP(9);
break;
case 10:
H264_DSP(10);
break; |
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case 12:
H264_DSP(12);
break;
case 14:
H264_DSP(14);
break; |
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default: |
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av_assert0(bit_depth<=8); |
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H264_DSP(8);
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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|
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if (ARCH_AARCH64) ff_h264dsp_init_aarch64(c, bit_depth, chroma_format_idc); |
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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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} |