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ffmpeg-4.2.2/libavcodec/mips/mpegvideoencdsp_msa.c 2.06 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com)
   *
   * 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 "h263dsp_mips.h"
  #include "libavutil/mips/generic_macros_msa.h"
  
  static int32_t sum_u8src_16width_msa(uint8_t *src, int32_t stride)
  {
      uint32_t sum = 0;
      v16u8 in0, in1, in2, in3, in4, in5, in6, in7;
      v16u8 in8, in9, in10, in11, in12, in13, in14, in15;
  
      LD_UB8(src, stride, in0, in1, in2, in3, in4, in5, in6, in7);
      src += (8 * stride);
      LD_UB8(src, stride, in8, in9, in10, in11, in12, in13, in14, in15);
  
      HADD_UB4_UB(in0, in1, in2, in3, in0, in1, in2, in3);
      HADD_UB4_UB(in4, in5, in6, in7, in4, in5, in6, in7);
      HADD_UB4_UB(in8, in9, in10, in11, in8, in9, in10, in11);
      HADD_UB4_UB(in12, in13, in14, in15, in12, in13, in14, in15);
  
      sum = HADD_UH_U32(in0);
      sum += HADD_UH_U32(in1);
      sum += HADD_UH_U32(in2);
      sum += HADD_UH_U32(in3);
      sum += HADD_UH_U32(in4);
      sum += HADD_UH_U32(in5);
      sum += HADD_UH_U32(in6);
      sum += HADD_UH_U32(in7);
      sum += HADD_UH_U32(in8);
      sum += HADD_UH_U32(in9);
      sum += HADD_UH_U32(in10);
      sum += HADD_UH_U32(in11);
      sum += HADD_UH_U32(in12);
      sum += HADD_UH_U32(in13);
      sum += HADD_UH_U32(in14);
      sum += HADD_UH_U32(in15);
  
      return sum;
  }
  
  int ff_pix_sum_msa(uint8_t *pix, int line_size)
  {
      return sum_u8src_16width_msa(pix, line_size);
  }