/*
 * Copyright (c) 2016, 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 <string>
#include <vector>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/md5_helper.h"
#include "test/util.h"
#include "test/y4m_video_source.h"

namespace {
class AVxEncoderThreadTest
    : public ::libaom_test::EncoderTest,
      public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode, int> {
 protected:
  AVxEncoderThreadTest()
      : EncoderTest(GET_PARAM(0)), encoder_initialized_(false), tiles_(2),
        encoding_mode_(GET_PARAM(1)), set_cpu_used_(GET_PARAM(2)) {
    init_flags_ = AOM_CODEC_USE_PSNR;

    md5_.clear();
  }
  virtual ~AVxEncoderThreadTest() {}

  virtual void SetUp() {
    InitializeConfig();
    SetMode(encoding_mode_);

    if (encoding_mode_ != ::libaom_test::kRealTime) {
      cfg_.g_lag_in_frames = 3;
      cfg_.rc_end_usage = AOM_VBR;
      cfg_.rc_2pass_vbr_minsection_pct = 5;
      cfg_.rc_2pass_vbr_minsection_pct = 2000;
    } else {
      cfg_.g_lag_in_frames = 0;
      cfg_.rc_end_usage = AOM_CBR;
      cfg_.g_error_resilient = 1;
    }
    cfg_.rc_max_quantizer = 56;
    cfg_.rc_min_quantizer = 0;
  }

  virtual void BeginPassHook(unsigned int /*pass*/) {
    encoder_initialized_ = false;
  }

  virtual void PreEncodeFrameHook(::libaom_test::VideoSource * /*video*/,
                                  ::libaom_test::Encoder *encoder) {
    if (!encoder_initialized_) {
      // Encode 4 column tiles.
      encoder->Control(AV1E_SET_TILE_COLUMNS, tiles_);
      encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
      if (encoding_mode_ != ::libaom_test::kRealTime) {
        encoder->Control(AOME_SET_ENABLEAUTOALTREF, 1);
        encoder->Control(AOME_SET_ARNR_MAXFRAMES, 7);
        encoder->Control(AOME_SET_ARNR_STRENGTH, 5);
        encoder->Control(AOME_SET_ARNR_TYPE, 3);
      } else {
        encoder->Control(AOME_SET_ENABLEAUTOALTREF, 0);
        encoder->Control(AV1E_SET_AQ_MODE, 3);
      }
      encoder_initialized_ = true;
    }
  }

  virtual void DecompressedFrameHook(const aom_image_t &img,
                                     aom_codec_pts_t /*pts*/) {
    ::libaom_test::MD5 md5_res;
    md5_res.Add(&img);
    md5_.push_back(md5_res.Get());
  }

  virtual bool HandleDecodeResult(const aom_codec_err_t res,
                                  libaom_test::Decoder * /*decoder*/) {
    if (res != AOM_CODEC_OK) {
      EXPECT_EQ(AOM_CODEC_OK, res);
      return false;
    }
    return true;
  }

  bool encoder_initialized_;
  int tiles_;
  ::libaom_test::TestMode encoding_mode_;
  int set_cpu_used_;
  std::vector<std::string> md5_;
};

TEST_P(AVxEncoderThreadTest, EncoderResultTest) {
  std::vector<std::string> single_thr_md5, multi_thr_md5;

  ::libaom_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 15, 20);

  cfg_.rc_target_bitrate = 1000;

  // Encode using single thread.
  cfg_.g_threads = 1;
  init_flags_ = AOM_CODEC_USE_PSNR;
  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
  single_thr_md5 = md5_;
  md5_.clear();

  // Encode using multiple threads.
  cfg_.g_threads = 4;
  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
  multi_thr_md5 = md5_;
  md5_.clear();

  // Compare to check if two vectors are equal.
  ASSERT_EQ(single_thr_md5, multi_thr_md5);
}

AV1_INSTANTIATE_TEST_CASE(AVxEncoderThreadTest,
                          ::testing::Values(::libaom_test::kTwoPassGood,
                                            ::libaom_test::kOnePassGood),
                          ::testing::Range(1, 3));
}  // namespace