text: /*
   * Copyright (c) 2018, Alliance for Open Media. All rights reserved
   *
   * This source code is subject to the terms of the BSD 2 Clause License and
   * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
   * was not distributed with this source code in the LICENSE file, you can
   * obtain it at www.aomedia.org/license/software. If the Alliance for Open
   * Media Patent License 1.0 was not distributed with this source code in the
   * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
   */
  
  #include <cstdio>
  #include <cstdlib>
  #include <memory>
  #include <set>
  #include <string>
  #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
  #include "common/tools_common.h"
  #include "config/aom_config.h"
  #include "test/codec_factory.h"
  #include "test/decode_test_driver.h"
  #include "test/ivf_video_source.h"
  #include "test/md5_helper.h"
  #include "test/test_vectors.h"
  #include "test/util.h"
  #if CONFIG_WEBM_IO
  #include "test/webm_video_source.h"
  #endif
  
  namespace {
  
  const int kThreads = 0;
  const int kFileName = 1;
  const int kRowMT = 2;
  
  typedef ::testing::tuple<int, const char *, int> DecodeParam;
  
  class TestVectorTest : public ::libaom_test::DecoderTest,
                         public ::libaom_test::CodecTestWithParam<DecodeParam> {
   protected:
    TestVectorTest() : DecoderTest(GET_PARAM(0)), md5_file_(NULL) {}
  
    virtual ~TestVectorTest() {
      if (md5_file_) fclose(md5_file_);
    }
  
    void OpenMD5File(const std::string &md5_file_name_) {
      md5_file_ = libaom_test::OpenTestDataFile(md5_file_name_);
      ASSERT_TRUE(md5_file_ != NULL)
          << "Md5 file open failed. Filename: " << md5_file_name_;
    }
  
    virtual void PreDecodeFrameHook(
        const libaom_test::CompressedVideoSource &video,
        libaom_test::Decoder *decoder) {
      if (video.frame_number() == 0) decoder->Control(AV1D_SET_ROW_MT, row_mt_);
    }
  
    virtual void DecompressedFrameHook(const aom_image_t &img,
                                       const unsigned int frame_number) {
      ASSERT_TRUE(md5_file_ != NULL);
      char expected_md5[33];
      char junk[128];
  
      // Read correct md5 checksums.
      const int res = fscanf(md5_file_, "%s  %s", expected_md5, junk);
      ASSERT_NE(res, EOF) << "Read md5 data failed";
      expected_md5[32] = '\0';
  
      ::libaom_test::MD5 md5_res;
  #if FORCE_HIGHBITDEPTH_DECODING
      const aom_img_fmt_t shifted_fmt =
          (aom_img_fmt)(img.fmt & ~AOM_IMG_FMT_HIGHBITDEPTH);
      if (img.bit_depth == 8 && shifted_fmt != img.fmt) {
        aom_image_t *img_shifted =
            aom_img_alloc(NULL, shifted_fmt, img.d_w, img.d_h, 16);
        img_shifted->bit_depth = img.bit_depth;
        img_shifted->monochrome = img.monochrome;
        aom_img_downshift(img_shifted, &img, 0);
        md5_res.Add(img_shifted);
        aom_img_free(img_shifted);
      } else {
  #endif
        md5_res.Add(&img);
  #if FORCE_HIGHBITDEPTH_DECODING
      }
  #endif
  
      const char *actual_md5 = md5_res.Get();
      // Check md5 match.
      ASSERT_STREQ(expected_md5, actual_md5)
          << "Md5 checksums don't match: frame number = " << frame_number;
    }
  
    unsigned int row_mt_;
  
   private:
    FILE *md5_file_;
  };
  
  // This test runs through the whole set of test vectors, and decodes them.
  // The md5 checksums are computed for each frame in the video file. If md5
  // checksums match the correct md5 data, then the test is passed. Otherwise,
  // the test failed.
  TEST_P(TestVectorTest, MD5Match) {
    const DecodeParam input = GET_PARAM(1);
    const std::string filename = ::testing::get<kFileName>(input);
    aom_codec_flags_t flags = 0;
    aom_codec_dec_cfg_t cfg = aom_codec_dec_cfg_t();
    char str[256];
  
    cfg.threads = ::testing::get<kThreads>(input);
    row_mt_ = ::testing::get<kRowMT>(input);
  
    snprintf(str, sizeof(str) / sizeof(str[0]) - 1, "file: %s threads: %d",
             filename.c_str(), cfg.threads);
    SCOPED_TRACE(str);
  
    // Open compressed video file.
    std::unique_ptr<libaom_test::CompressedVideoSource> video;
    if (filename.substr(filename.length() - 3, 3) == "ivf") {
      video.reset(new libaom_test::IVFVideoSource(filename));
    } else if (filename.substr(filename.length() - 4, 4) == "webm" ||
               filename.substr(filename.length() - 3, 3) == "mkv") {
  #if CONFIG_WEBM_IO
      video.reset(new libaom_test::WebMVideoSource(filename));
  #else
      fprintf(stderr, "WebM IO is disabled, skipping test vector %s\n",
              filename.c_str());
      return;
  #endif
    }
    ASSERT_TRUE(video.get() != NULL);
    video->Init();
  
    // Construct md5 file name.
    const std::string md5_filename = filename + ".md5";
    OpenMD5File(md5_filename);
  
    // Set decode config and flags.
    cfg.allow_lowbitdepth = !FORCE_HIGHBITDEPTH_DECODING;
    set_cfg(cfg);
    set_flags(flags);
  
    // Decode frame, and check the md5 matching.
    ASSERT_NO_FATAL_FAILURE(RunLoop(video.get(), cfg));
  }
  
  #if CONFIG_AV1_DECODER
  AV1_INSTANTIATE_TEST_CASE(
      TestVectorTest,
      ::testing::Combine(::testing::Values(1),  // Single thread.
                         ::testing::ValuesIn(libaom_test::kAV1TestVectors,
                                             libaom_test::kAV1TestVectors +
                                                 libaom_test::kNumAV1TestVectors),
                         ::testing::Values(0)));
  
  // Test AV1 decode in with different numbers of threads.
  INSTANTIATE_TEST_CASE_P(
      AV1MultiThreaded, TestVectorTest,
      ::testing::Combine(
          ::testing::Values(
              static_cast<const libaom_test::CodecFactory *>(&libaom_test::kAV1)),
          ::testing::Combine(
              ::testing::Range(2, 9),  // With 2 ~ 8 threads.
              ::testing::ValuesIn(libaom_test::kAV1TestVectors,
                                  libaom_test::kAV1TestVectors +
                                      libaom_test::kNumAV1TestVectors),
              ::testing::Range(0, 2))));
  
  #endif  // CONFIG_AV1_DECODER
  
  }  // namespace
  