1/* 2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> 3 * 4 * This file is part of FFmpeg. 5 * 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. 10 * 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. 15 * 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 19 */ 20 21#include <stdint.h> 22 23#include "libavutil/attributes.h" 24#include "libavutil/arm/cpu.h" 25#include "libavcodec/h264dsp.h" 26 27int ff_startcode_find_candidate_armv6(const uint8_t *buf, int size); 28 29void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha, 30 int beta, int8_t *tc0); 31void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha, 32 int beta, int8_t *tc0); 33void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha, 34 int beta, int8_t *tc0); 35void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha, 36 int beta, int8_t *tc0); 37 38void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height, 39 int log2_den, int weight, int offset); 40void ff_weight_h264_pixels_8_neon(uint8_t *dst, int stride, int height, 41 int log2_den, int weight, int offset); 42void ff_weight_h264_pixels_4_neon(uint8_t *dst, int stride, int height, 43 int log2_den, int weight, int offset); 44 45void 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); 48void 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); 51void 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); 54 55void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride); 56void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride); 57void 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]); 60void 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]); 63void 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]); 66 67void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride); 68void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride); 69void 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]); 72 73static av_cold void h264dsp_init_neon(H264DSPContext *c, const int bit_depth, 74 const int chroma_format_idc) 75{ 76#if HAVE_NEON 77 if (bit_depth == 8) { 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; 83 } 84 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; 88 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; 92 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; 102 } 103#endif // HAVE_NEON 104} 105 106av_cold void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth, 107 const int chroma_format_idc) 108{ 109 int cpu_flags = av_get_cpu_flags(); 110 111 if (have_armv6(cpu_flags) && !(have_vfpv3(cpu_flags) || have_neon(cpu_flags))) { 112 // This function uses the 'setend' instruction which is deprecated 113 // on ARMv8. This instruction is serializing on some ARMv7 cores as 114 // well. Therefore, only use the function on ARMv6. 115 c->h264_find_start_code_candidate = ff_startcode_find_candidate_armv6; 116 } 117 if (have_neon(cpu_flags)) 118 h264dsp_init_neon(c, bit_depth, chroma_format_idc); 119} 120