Blame view

ffmpeg-4.2.2/libavcodec/arm/me_cmp_init_arm.c 2 KB
aac5773f   hucm   功能基本完成,接口待打磨
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
53
54
55
56
57
  /*
   * 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 <stdint.h>
  
  #include "libavutil/attributes.h"
  #include "libavutil/cpu.h"
  #include "libavutil/arm/cpu.h"
  #include "libavcodec/avcodec.h"
  #include "libavcodec/me_cmp.h"
  #include "libavcodec/mpegvideo.h"
  
  int ff_pix_abs16_armv6(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                         ptrdiff_t stride, int h);
  int ff_pix_abs16_x2_armv6(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                            ptrdiff_t stride, int h);
  int ff_pix_abs16_y2_armv6(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                            ptrdiff_t stride, int h);
  
  int ff_pix_abs8_armv6(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                        ptrdiff_t stride, int h);
  
  int ff_sse16_armv6(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                     ptrdiff_t stride, int h);
  
  av_cold void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx)
  {
      int cpu_flags = av_get_cpu_flags();
  
      if (have_armv6(cpu_flags)) {
          c->pix_abs[0][0] = ff_pix_abs16_armv6;
          c->pix_abs[0][1] = ff_pix_abs16_x2_armv6;
          c->pix_abs[0][2] = ff_pix_abs16_y2_armv6;
  
          c->pix_abs[1][0] = ff_pix_abs8_armv6;
  
          c->sad[0] = ff_pix_abs16_armv6;
          c->sad[1] = ff_pix_abs8_armv6;
  
          c->sse[0] = ff_sse16_armv6;
      }
  }