1/*
2 *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10#include "./vpx_config.h"
11#include "third_party/googletest/src/include/gtest/gtest.h"
12#include "test/codec_factory.h"
13#include "test/encode_test_driver.h"
14#include "test/i420_video_source.h"
15#include "test/util.h"
16#include "test/y4m_video_source.h"
17
18namespace {
19
20const int kMaxPsnr = 100;
21
22class LosslessTestLarge : public ::libvpx_test::EncoderTest,
23    public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
24 protected:
25  LosslessTestLarge()
26      : EncoderTest(GET_PARAM(0)),
27        psnr_(kMaxPsnr),
28        nframes_(0),
29        encoding_mode_(GET_PARAM(1)) {
30  }
31
32  virtual ~LosslessTestLarge() {}
33
34  virtual void SetUp() {
35    InitializeConfig();
36    SetMode(encoding_mode_);
37  }
38
39  virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
40                                  ::libvpx_test::Encoder *encoder) {
41    if (video->frame() == 1) {
42      // Only call Control if quantizer > 0 to verify that using quantizer
43      // alone will activate lossless
44      if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
45        encoder->Control(VP9E_SET_LOSSLESS, 1);
46      }
47    }
48  }
49
50  virtual void BeginPassHook(unsigned int /*pass*/) {
51    psnr_ = kMaxPsnr;
52    nframes_ = 0;
53  }
54
55  virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
56    if (pkt->data.psnr.psnr[0] < psnr_)
57      psnr_= pkt->data.psnr.psnr[0];
58  }
59
60  double GetMinPsnr() const {
61      return psnr_;
62  }
63
64 private:
65  double psnr_;
66  unsigned int nframes_;
67  libvpx_test::TestMode encoding_mode_;
68};
69
70TEST_P(LosslessTestLarge, TestLossLessEncoding) {
71  const vpx_rational timebase = { 33333333, 1000000000 };
72  cfg_.g_timebase = timebase;
73  cfg_.rc_target_bitrate = 2000;
74  cfg_.g_lag_in_frames = 25;
75  cfg_.rc_min_quantizer = 0;
76  cfg_.rc_max_quantizer = 0;
77
78  init_flags_ = VPX_CODEC_USE_PSNR;
79
80  // intentionally changed the dimension for better testing coverage
81  libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
82                                     timebase.den, timebase.num, 0, 10);
83  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
84  const double psnr_lossless = GetMinPsnr();
85  EXPECT_GE(psnr_lossless, kMaxPsnr);
86}
87
88TEST_P(LosslessTestLarge, TestLossLessEncoding444) {
89  libvpx_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 10);
90
91  cfg_.g_profile = 1;
92  cfg_.g_timebase = video.timebase();
93  cfg_.rc_target_bitrate = 2000;
94  cfg_.g_lag_in_frames = 25;
95  cfg_.rc_min_quantizer = 0;
96  cfg_.rc_max_quantizer = 0;
97
98  init_flags_ = VPX_CODEC_USE_PSNR;
99
100  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
101  const double psnr_lossless = GetMinPsnr();
102  EXPECT_GE(psnr_lossless, kMaxPsnr);
103}
104
105TEST_P(LosslessTestLarge, TestLossLessEncodingCtrl) {
106  const vpx_rational timebase = { 33333333, 1000000000 };
107  cfg_.g_timebase = timebase;
108  cfg_.rc_target_bitrate = 2000;
109  cfg_.g_lag_in_frames = 25;
110  // Intentionally set Q > 0, to make sure control can be used to activate
111  // lossless
112  cfg_.rc_min_quantizer = 10;
113  cfg_.rc_max_quantizer = 20;
114
115  init_flags_ = VPX_CODEC_USE_PSNR;
116
117  libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
118                                     timebase.den, timebase.num, 0, 10);
119  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
120  const double psnr_lossless = GetMinPsnr();
121  EXPECT_GE(psnr_lossless, kMaxPsnr);
122}
123
124VP9_INSTANTIATE_TEST_CASE(LosslessTestLarge, ALL_TEST_MODES);
125}  // namespace
126