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3rdparty/ffmpeg-4.4.4/libavcodec/mips/xvididct_init_mips.c 1.41 KB
09c2d08c   Hu Chunming   arm交付版
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  /*
   * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
   *
   * 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/mips/cpu.h"
  #include "xvididct_mips.h"
  
  av_cold void ff_xvid_idct_init_mips(IDCTDSPContext *c, AVCodecContext *avctx,
          unsigned high_bit_depth)
  {
      int cpu_flags = av_get_cpu_flags();
  
      if (have_mmi(cpu_flags)) {
          if (!high_bit_depth) {
              if (avctx->idct_algo == FF_IDCT_AUTO ||
                      avctx->idct_algo == FF_IDCT_XVID) {
                  c->idct_put = ff_xvid_idct_put_mmi;
                  c->idct_add = ff_xvid_idct_add_mmi;
                  c->idct = ff_xvid_idct_mmi;
                  c->perm_type = FF_IDCT_PERM_NONE;
              }
          }
      }
  }