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ffmpeg-4.2.2/libavcodec/x86/proresdsp_init.c 1.77 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Apple ProRes compatible decoder
   *
   * Copyright (c) 2010-2011 Maxim Poliakovski
   *
   * 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/x86/cpu.h"
  #include "libavcodec/idctdsp.h"
  #include "libavcodec/proresdsp.h"
  
  void ff_prores_idct_put_10_sse2(uint16_t *dst, ptrdiff_t linesize,
                                  int16_t *block, const int16_t *qmat);
  void ff_prores_idct_put_10_avx (uint16_t *dst, ptrdiff_t linesize,
                                  int16_t *block, const int16_t *qmat);
  
  av_cold void ff_proresdsp_init_x86(ProresDSPContext *dsp, AVCodecContext *avctx)
  {
  #if ARCH_X86_64
      int cpu_flags = av_get_cpu_flags();
  
      if (avctx->bits_per_raw_sample == 10){
          if (EXTERNAL_SSE2(cpu_flags)) {
              dsp->idct_permutation_type = FF_IDCT_PERM_TRANSPOSE;
              dsp->idct_put = ff_prores_idct_put_10_sse2;
          }
  
          if (EXTERNAL_AVX(cpu_flags)) {
              dsp->idct_permutation_type = FF_IDCT_PERM_TRANSPOSE;
              dsp->idct_put = ff_prores_idct_put_10_avx;
          }
      }
  #endif /* ARCH_X86_64 */
  }