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ffmpeg-4.2.2/tests/checkasm/v210dec.c 2.36 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2019 James Darnley
   *
   * 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/v210dec.h"
  
  static uint32_t get_v210(void)
  {
      uint32_t t0 = rnd() & 0x3ff,
               t1 = rnd() & 0x3ff,
               t2 = rnd() & 0x3ff;
      uint32_t value =  t0
                     | (t1 << 10)
                     | (t2 << 20);
      return value;
  }
  
  #define NUM_SAMPLES 2048
  
  static void randomize_buffers(uint32_t *src0, uint32_t *src1, int len)
  {
      for (int i = 0; i < len; i++) {
          uint32_t value = get_v210();
          src0[i] = value;
          src1[i] = value;
      }
  }
  
  void checkasm_check_v210dec(void)
  {
      V210DecContext h;
  
      h.aligned_input = 0;
      ff_v210dec_init(&h);
  
      if (check_func(h.unpack_frame, "v210_unpack")) {
          uint32_t src0[NUM_SAMPLES/3];
          uint32_t src1[NUM_SAMPLES/3];
          uint16_t y0[NUM_SAMPLES/2];
          uint16_t y1[NUM_SAMPLES/2];
          uint16_t u0[NUM_SAMPLES/4];
          uint16_t u1[NUM_SAMPLES/4];
          uint16_t v0[NUM_SAMPLES/4];
          uint16_t v1[NUM_SAMPLES/4];
          declare_func(void, const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width);
          const int pixels = NUM_SAMPLES / 2 / 6 * 6;
  
          randomize_buffers(src0, src1, NUM_SAMPLES/3);
          call_ref(src0, y0, u0, v0, pixels);
          call_new(src1, y1, u1, v1, pixels);
          if (memcmp(src0, src1, NUM_SAMPLES/3 * sizeof src0[0])
                  || memcmp(y0, y1, pixels * sizeof y0[0])
                  || memcmp(u0, u1, pixels/2 * sizeof u0[0])
                  || memcmp(v0, v1, pixels/2 * sizeof v0[0]))
              fail();
          bench_new(src1, y1, u1, v1, pixels);
      }
      report("v210_unpack");
  }