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ffmpeg-4.2.2/libavcodec/x86/dnxhdenc_init.c 1.36 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * VC3/DNxHD SIMD functions
   * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
   *
   * VC-3 encoder funded by the British Broadcasting Corporation
   *
   * 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/dnxhdenc.h"
  
  void ff_get_pixels_8x4_sym_sse2(int16_t *block, const uint8_t *pixels,
                                  ptrdiff_t line_size);
  
  av_cold void ff_dnxhdenc_init_x86(DNXHDEncContext *ctx)
  {
      if (EXTERNAL_SSE2(av_get_cpu_flags())) {
          if (ctx->cid_table->bit_depth == 8)
              ctx->get_pixels_8x4_sym = ff_get_pixels_8x4_sym_sse2;
      }
  }