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ffmpeg-4.2.2/tests/checkasm/llviddspenc.c 3.68 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2016 Alexandra Hájková
   *
   * 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 "libavutil/common.h"
  #include "libavutil/intreadwrite.h"
  #include "libavutil/mem.h"
  
  #include "libavcodec/lossless_videoencdsp.h"
  
  #include "checkasm.h"
  
  #define randomize_buffers(buf, size)      \
      do {                                  \
          int j;                            \
          for (j = 0; j < size; j+=4)       \
              AV_WN32(buf + j, rnd());      \
      } while (0)
  
  static const struct {uint8_t w, h, s;} planes[] = {
      {16,16,16}, {21,23,25}, {32,17,48}, {15,128,16}, {128,127,128}
  };
  
  #define MAX_STRIDE 128
  #define MAX_HEIGHT 127
  
  static void check_diff_bytes(LLVidEncDSPContext *c)
  {
      int i;
      LOCAL_ALIGNED_32(uint8_t, dst0, [MAX_STRIDE]);
      LOCAL_ALIGNED_32(uint8_t, dst1, [MAX_STRIDE]);
      LOCAL_ALIGNED_32(uint8_t, src0, [MAX_STRIDE]);
      LOCAL_ALIGNED_32(uint8_t, src1, [MAX_STRIDE]);
      LOCAL_ALIGNED_32(uint8_t, src2, [MAX_STRIDE]);
      LOCAL_ALIGNED_32(uint8_t, src3, [MAX_STRIDE]);
  
      declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src1,
                        const uint8_t *src2, intptr_t w);
  
      memset(dst0, 0, MAX_STRIDE);
      memset(dst1, 0, MAX_STRIDE);
      randomize_buffers(src0, MAX_STRIDE);
      memcpy(src1, src0, MAX_STRIDE);
      randomize_buffers(src2, MAX_STRIDE);
      memcpy(src3, src2, MAX_STRIDE);
  
      if (check_func(c->diff_bytes, "diff_bytes")) {
          for (i = 0; i < 5; i ++) {
              call_ref(dst0, src0, src2, planes[i].w);
              call_new(dst1, src1, src3, planes[i].w);
              if (memcmp(dst0, dst1, planes[i].w))
                  fail();
          }
          bench_new(dst1, src0, src2, planes[4].w);
      }
  }
  
  static void check_sub_left_pred(LLVidEncDSPContext *c)
  {
      int i;
      LOCAL_ALIGNED_32(uint8_t, dst0, [MAX_STRIDE * MAX_HEIGHT]);
      LOCAL_ALIGNED_32(uint8_t, dst1, [MAX_STRIDE * MAX_HEIGHT]);
      LOCAL_ALIGNED_32(uint8_t, src0, [MAX_STRIDE * MAX_HEIGHT]);
      LOCAL_ALIGNED_32(uint8_t, src1, [MAX_STRIDE * MAX_HEIGHT]);
  
      declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const uint8_t *src,
                        ptrdiff_t stride, ptrdiff_t width, int height);
  
      memset(dst0, 0, MAX_STRIDE * MAX_HEIGHT);
      memset(dst1, 0, MAX_STRIDE * MAX_HEIGHT);
      randomize_buffers(src0, MAX_STRIDE * MAX_HEIGHT);
      memcpy(src1, src0, MAX_STRIDE * MAX_HEIGHT);
  
      if (check_func(c->sub_left_predict, "sub_left_predict")) {
          for (i = 0; i < 5; i ++) {
              call_ref(dst0, src0, planes[i].s, planes[i].w, planes[i].h);
              call_new(dst1, src1, planes[i].s, planes[i].w, planes[i].h);
              if (memcmp(dst0, dst1, planes[i].w * planes[i].h))
                  fail();
              break;
          }
          bench_new(dst1, src0, planes[4].s, planes[4].w, planes[4].h);
      }
  }
  
  void checkasm_check_llviddspenc(void)
  {
      LLVidEncDSPContext c;
      ff_llvidencdsp_init(&c);
  
      check_diff_bytes(&c);
      report("diff_bytes");
  
      check_sub_left_pred(&c);
      report("sub_left_predict");
  }