git.sesse.net Git - ffmpeg/blob - libavcodec/arm/h264dsp_init_arm.c

   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
  27 int ff_h264_find_start_code_candidate_armv6(const uint8_t *buf, int size);
  28
  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);
  37
  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);
  44
  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);
  54
  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]);
  66
  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]);
  72
  73 static 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
 106 av_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))
 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);
 115 }