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ffmpeg-4.2.2/libavcodec/x86/v210-init.c 2.4 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/cpu.h"
  #include "libavcodec/v210dec.h"
  
  extern void ff_v210_planar_unpack_unaligned_ssse3(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  extern void ff_v210_planar_unpack_unaligned_avx(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  extern void ff_v210_planar_unpack_unaligned_avx2(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  
  extern void ff_v210_planar_unpack_aligned_ssse3(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  extern void ff_v210_planar_unpack_aligned_avx(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  extern void ff_v210_planar_unpack_aligned_avx2(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
  
  av_cold void ff_v210_x86_init(V210DecContext *s)
  {
  #if HAVE_X86ASM
      int cpu_flags = av_get_cpu_flags();
  
      if (s->aligned_input) {
          if (cpu_flags & AV_CPU_FLAG_SSSE3)
              s->unpack_frame = ff_v210_planar_unpack_aligned_ssse3;
  
          if (HAVE_AVX_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX)
              s->unpack_frame = ff_v210_planar_unpack_aligned_avx;
  
          if (HAVE_AVX2_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX2)
              s->unpack_frame = ff_v210_planar_unpack_aligned_avx2;
      }
      else {
          if (cpu_flags & AV_CPU_FLAG_SSSE3)
              s->unpack_frame = ff_v210_planar_unpack_unaligned_ssse3;
  
          if (HAVE_AVX_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX)
              s->unpack_frame = ff_v210_planar_unpack_unaligned_avx;
  
          if (HAVE_AVX2_EXTERNAL && cpu_flags & AV_CPU_FLAG_AVX2)
              s->unpack_frame = ff_v210_planar_unpack_unaligned_avx2;
      }
  #endif
  }