third_party/aom/test/lossless_test.cc

   1 /*
   2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
   3  *
   4  * This source code is subject to the terms of the BSD 2 Clause License and
   5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
   6  * was not distributed with this source code in the LICENSE file, you can
   7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
   8  * Media Patent License 1.0 was not distributed with this source code in the
   9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
  10  */
  11
  12 #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
  13
  14 #include "config/aom_config.h"
  15
  16 #include "test/codec_factory.h"
  17 #include "test/encode_test_driver.h"
  18 #include "test/i420_video_source.h"
  19 #include "test/util.h"
  20 #include "test/y4m_video_source.h"
  21
  22 namespace {
  23
  24 const int kMaxPsnr = 100;
  25
  26 class LosslessTestLarge
  27     : public ::libaom_test::CodecTestWithParam<libaom_test::TestMode>,
  28       public ::libaom_test::EncoderTest {
  29  protected:
  30   LosslessTestLarge()
  31       : EncoderTest(GET_PARAM(0)), psnr_(kMaxPsnr), nframes_(0),
  32         encoding_mode_(GET_PARAM(1)) {}
  33
  34   virtual ~LosslessTestLarge() {}
  35
  36   virtual void SetUp() {
  37     InitializeConfig();
  38     SetMode(encoding_mode_);
  39   }
  40
  41   virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
  42                                   ::libaom_test::Encoder *encoder) {
  43     if (video->frame() == 1) {
  44       // Only call Control if quantizer > 0 to verify that using quantizer
  45       // alone will activate lossless
  46       if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
  47         encoder->Control(AV1E_SET_LOSSLESS, 1);
  48       }
  49     }
  50   }
  51
  52   virtual void BeginPassHook(unsigned int /*pass*/) {
  53     psnr_ = kMaxPsnr;
  54     nframes_ = 0;
  55   }
  56
  57   virtual void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) {
  58     if (pkt->data.psnr.psnr[0] < psnr_) psnr_ = pkt->data.psnr.psnr[0];
  59   }
  60
  61   double GetMinPsnr() const { return psnr_; }
  62
  63  private:
  64   double psnr_;
  65   unsigned int nframes_;
  66   libaom_test::TestMode encoding_mode_;
  67 };
  68
  69 TEST_P(LosslessTestLarge, TestLossLessEncoding) {
  70   const aom_rational timebase = { 33333333, 1000000000 };
  71   cfg_.g_timebase = timebase;
  72   cfg_.rc_target_bitrate = 2000;
  73   cfg_.g_lag_in_frames = 25;
  74   cfg_.rc_min_quantizer = 0;
  75   cfg_.rc_max_quantizer = 0;
  76
  77   init_flags_ = AOM_CODEC_USE_PSNR;
  78
  79   // intentionally changed the dimension for better testing coverage
  80   libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
  81                                      timebase.den, timebase.num, 0, 5);
  82   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
  83   const double psnr_lossless = GetMinPsnr();
  84   EXPECT_GE(psnr_lossless, kMaxPsnr);
  85 }
  86
  87 TEST_P(LosslessTestLarge, TestLossLessEncoding444) {
  88   libaom_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 5);
  89
  90   cfg_.g_profile = 1;
  91   cfg_.g_timebase = video.timebase();
  92   cfg_.rc_target_bitrate = 2000;
  93   cfg_.g_lag_in_frames = 25;
  94   cfg_.rc_min_quantizer = 0;
  95   cfg_.rc_max_quantizer = 0;
  96
  97   init_flags_ = AOM_CODEC_USE_PSNR;
  98
  99   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
 100   const double psnr_lossless = GetMinPsnr();
 101   EXPECT_GE(psnr_lossless, kMaxPsnr);
 102 }
 103
 104 TEST_P(LosslessTestLarge, TestLossLessEncodingCtrl) {
 105   const aom_rational timebase = { 33333333, 1000000000 };
 106   cfg_.g_timebase = timebase;
 107   cfg_.rc_target_bitrate = 2000;
 108   cfg_.g_lag_in_frames = 25;
 109   // Intentionally set Q > 0, to make sure control can be used to activate
 110   // lossless
 111   cfg_.rc_min_quantizer = 10;
 112   cfg_.rc_max_quantizer = 20;
 113
 114   init_flags_ = AOM_CODEC_USE_PSNR;
 115
 116   libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
 117                                      timebase.den, timebase.num, 0, 5);
 118   ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
 119   const double psnr_lossless = GetMinPsnr();
 120   EXPECT_GE(psnr_lossless, kMaxPsnr);
 121 }
 122
 123 AV1_INSTANTIATE_TEST_CASE(LosslessTestLarge,
 124                           ::testing::Values(::libaom_test::kOnePassGood,
 125                                             ::libaom_test::kTwoPassGood));
 126 }  // namespace