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ffmpeg-4.2.2/tests/checkasm/exrdsp.c 2.79 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2017 James Almer
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 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 General Public License for more details.
   *
   * You should have received a copy of the GNU 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 <string.h>
  
  #include "checkasm.h"
  #include "libavcodec/avcodec.h"
  #include "libavcodec/exrdsp.h"
  #include "libavutil/intreadwrite.h"
  
  #define BUF_SIZE 5120
  #define PADDED_BUF_SIZE BUF_SIZE+AV_INPUT_BUFFER_PADDING_SIZE*2
  
  #define randomize_buffers()                 \
      do {                                    \
          int i;                              \
          for (i = 0; i < BUF_SIZE; i += 4) { \
              uint32_t r = rnd();             \
              AV_WN32A(src + i, r);           \
          }                                   \
      } while (0)
  
  static void check_reorder_pixels(void) {
      LOCAL_ALIGNED_32(uint8_t, src,     [PADDED_BUF_SIZE]);
      LOCAL_ALIGNED_32(uint8_t, dst_ref, [PADDED_BUF_SIZE]);
      LOCAL_ALIGNED_32(uint8_t, dst_new, [PADDED_BUF_SIZE]);
  
      declare_func(void, uint8_t *dst, const uint8_t *src, ptrdiff_t size);
  
      memset(src,     0, PADDED_BUF_SIZE);
      memset(dst_ref, 0, PADDED_BUF_SIZE);
      memset(dst_new, 0, PADDED_BUF_SIZE);
      randomize_buffers();
      call_ref(dst_ref, src, BUF_SIZE);
      call_new(dst_new, src, BUF_SIZE);
      if (memcmp(dst_ref, dst_new, BUF_SIZE))
          fail();
      bench_new(dst_new, src, BUF_SIZE);
  }
  
  static void check_predictor(void) {
      LOCAL_ALIGNED_32(uint8_t, src,     [PADDED_BUF_SIZE]);
      LOCAL_ALIGNED_32(uint8_t, dst_ref, [PADDED_BUF_SIZE]);
      LOCAL_ALIGNED_32(uint8_t, dst_new, [PADDED_BUF_SIZE]);
  
      declare_func(void, uint8_t *src, ptrdiff_t size);
  
      memset(src,     0, PADDED_BUF_SIZE);
      randomize_buffers();
      memcpy(dst_ref, src, PADDED_BUF_SIZE);
      memcpy(dst_new, src, PADDED_BUF_SIZE);
      call_ref(dst_ref, BUF_SIZE);
      call_new(dst_new, BUF_SIZE);
      if (memcmp(dst_ref, dst_new, BUF_SIZE))
          fail();
      bench_new(dst_new, BUF_SIZE);
  }
  
  void checkasm_check_exrdsp(void)
  {
      ExrDSPContext h;
  
      ff_exrdsp_init(&h);
  
      if (check_func(h.reorder_pixels, "reorder_pixels"))
          check_reorder_pixels();
  
      report("reorder_pixels");
  
      if (check_func(h.predictor, "predictor"))
          check_predictor();
  
      report("predictor");
  }