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ffmpeg-4.2.2/libavcodec/x86/hpeldsp_vp3_init.c 2.29 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * 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/attributes.h"
  #include "libavutil/cpu.h"
  #include "libavutil/x86/cpu.h"
  
  #include "libavcodec/avcodec.h"
  #include "libavcodec/hpeldsp.h"
  
  #include "hpeldsp.h"
  
  void ff_put_no_rnd_pixels8_x2_exact_mmxext(uint8_t *block,
                                             const uint8_t *pixels,
                                             ptrdiff_t line_size, int h);
  void ff_put_no_rnd_pixels8_x2_exact_3dnow(uint8_t *block,
                                            const uint8_t *pixels,
                                            ptrdiff_t line_size, int h);
  void ff_put_no_rnd_pixels8_y2_exact_mmxext(uint8_t *block,
                                             const uint8_t *pixels,
                                             ptrdiff_t line_size, int h);
  void ff_put_no_rnd_pixels8_y2_exact_3dnow(uint8_t *block,
                                            const uint8_t *pixels,
                                            ptrdiff_t line_size, int h);
  
  av_cold void ff_hpeldsp_vp3_init_x86(HpelDSPContext *c, int cpu_flags, int flags)
  {
      if (EXTERNAL_AMD3DNOW(cpu_flags)) {
          if (flags & AV_CODEC_FLAG_BITEXACT) {
              c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_3dnow;
              c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_3dnow;
          }
      }
  
      if (EXTERNAL_MMXEXT(cpu_flags)) {
          if (flags & AV_CODEC_FLAG_BITEXACT) {
              c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_mmxext;
              c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_mmxext;
          }
      }
  }