2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/attributes.h"
24 #include "libavutil/arm/cpu.h"
25 #include "libavcodec/h264dsp.h"
27 int ff_h264_find_start_code_candidate_armv6(const uint8_t *buf, int size);
29 void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,
30 int beta, int8_t *tc0);
31 void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,
32 int beta, int8_t *tc0);
33 void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
34 int beta, int8_t *tc0);
35 void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
36 int beta, int8_t *tc0);
38 void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height,
39 int log2_den, int weight, int offset);
40 void ff_weight_h264_pixels_8_neon(uint8_t *dst, int stride, int height,
41 int log2_den, int weight, int offset);
42 void ff_weight_h264_pixels_4_neon(uint8_t *dst, int stride, int height,
43 int log2_den, int weight, int offset);
45 void ff_biweight_h264_pixels_16_neon(uint8_t *dst, uint8_t *src, int stride,
46 int height, int log2_den, int weightd,
47 int weights, int offset);
48 void ff_biweight_h264_pixels_8_neon(uint8_t *dst, uint8_t *src, int stride,
49 int height, int log2_den, int weightd,
50 int weights, int offset);
51 void ff_biweight_h264_pixels_4_neon(uint8_t *dst, uint8_t *src, int stride,
52 int height, int log2_den, int weightd,
53 int weights, int offset);
55 void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride);
56 void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
57 void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset,
58 int16_t *block, int stride,
59 const uint8_t nnzc[6*8]);
60 void ff_h264_idct_add16intra_neon(uint8_t *dst, const int *block_offset,
61 int16_t *block, int stride,
62 const uint8_t nnzc[6*8]);
63 void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,
64 int16_t *block, int stride,
65 const uint8_t nnzc[6*8]);
67 void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride);
68 void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
69 void ff_h264_idct8_add4_neon(uint8_t *dst, const int *block_offset,
70 int16_t *block, int stride,
71 const uint8_t nnzc[6*8]);
73 static av_cold void h264dsp_init_neon(H264DSPContext *c, const int bit_depth,
74 const int chroma_format_idc)
78 c->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_neon;
79 c->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_neon;
80 if(chroma_format_idc == 1){
81 c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
82 c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
85 c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
86 c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;
87 c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels_4_neon;
89 c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels_16_neon;
90 c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels_8_neon;
91 c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels_4_neon;
93 c->h264_idct_add = ff_h264_idct_add_neon;
94 c->h264_idct_dc_add = ff_h264_idct_dc_add_neon;
95 c->h264_idct_add16 = ff_h264_idct_add16_neon;
96 c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;
97 if (chroma_format_idc <= 1)
98 c->h264_idct_add8 = ff_h264_idct_add8_neon;
99 c->h264_idct8_add = ff_h264_idct8_add_neon;
100 c->h264_idct8_dc_add = ff_h264_idct8_dc_add_neon;
101 c->h264_idct8_add4 = ff_h264_idct8_add4_neon;
106 av_cold void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
107 const int chroma_format_idc)
109 int cpu_flags = av_get_cpu_flags();
111 if (have_armv6(cpu_flags))
112 c->h264_find_start_code_candidate = ff_h264_find_start_code_candidate_armv6;
113 if (have_neon(cpu_flags))
114 h264dsp_init_neon(c, bit_depth, chroma_format_idc);