Blame view

3rdparty/ffmpeg-4.4.4/libavcodec/mips/h264chroma_init_mips.c 2.02 KB
09c2d08c   Hu Chunming   arm交付版
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
  /*
   * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
   * Copyright (c) 2015 Shivraj Patil (Shivraj.Patil@imgtec.com)
   *
   * 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
   */
  
  #include "libavutil/mips/cpu.h"
  #include "h264chroma_mips.h"
  
  
  av_cold void ff_h264chroma_init_mips(H264ChromaContext *c, int bit_depth)
  {
      int cpu_flags = av_get_cpu_flags();
      int high_bit_depth = bit_depth > 8;
  
      /* MMI apears to be faster than MSA here */
      if (have_msa(cpu_flags)) {
          if (!high_bit_depth) {
              c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_msa;
              c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_msa;
              c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_msa;
  
              c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_msa;
              c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_msa;
              c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_msa;
          }
      }
  
      if (have_mmi(cpu_flags)) {
          if (!high_bit_depth) {
              c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_mmi;
              c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_mmi;
              c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmi;
              c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_mmi;
          }
      }
  }