2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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.
11 #include "third_party/googletest/src/include/gtest/gtest.h"
13 #include "./vpx_config.h"
14 #include "test/codec_factory.h"
15 #include "test/encode_test_driver.h"
16 #include "test/i420_video_source.h"
17 #include "test/util.h"
18 #include "test/y4m_video_source.h"
22 const int kMaxPsnr = 100;
25 : public ::libvpx_test::EncoderTest,
26 public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
29 : EncoderTest(GET_PARAM(0)), psnr_(kMaxPsnr), nframes_(0),
30 encoding_mode_(GET_PARAM(1)) {}
32 virtual ~LosslessTest() {}
34 virtual void SetUp() {
36 SetMode(encoding_mode_);
39 virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
40 ::libvpx_test::Encoder *encoder) {
41 if (video->frame() == 0) {
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);
50 virtual void BeginPassHook(unsigned int /*pass*/) {
55 virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
56 if (pkt->data.psnr.psnr[0] < psnr_) psnr_ = pkt->data.psnr.psnr[0];
59 double GetMinPsnr() const { return psnr_; }
63 unsigned int nframes_;
64 libvpx_test::TestMode encoding_mode_;
67 TEST_P(LosslessTest, TestLossLessEncoding) {
68 const vpx_rational timebase = { 33333333, 1000000000 };
69 cfg_.g_timebase = timebase;
70 cfg_.rc_target_bitrate = 2000;
71 cfg_.g_lag_in_frames = 25;
72 cfg_.rc_min_quantizer = 0;
73 cfg_.rc_max_quantizer = 0;
75 init_flags_ = VPX_CODEC_USE_PSNR;
77 // intentionally changed the dimension for better testing coverage
78 libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
79 timebase.den, timebase.num, 0, 10);
80 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
81 const double psnr_lossless = GetMinPsnr();
82 EXPECT_GE(psnr_lossless, kMaxPsnr);
85 TEST_P(LosslessTest, TestLossLessEncoding444) {
86 libvpx_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 10);
89 cfg_.g_timebase = video.timebase();
90 cfg_.rc_target_bitrate = 2000;
91 cfg_.g_lag_in_frames = 25;
92 cfg_.rc_min_quantizer = 0;
93 cfg_.rc_max_quantizer = 0;
95 init_flags_ = VPX_CODEC_USE_PSNR;
97 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
98 const double psnr_lossless = GetMinPsnr();
99 EXPECT_GE(psnr_lossless, kMaxPsnr);
102 TEST_P(LosslessTest, TestLossLessEncodingCtrl) {
103 const vpx_rational timebase = { 33333333, 1000000000 };
104 cfg_.g_timebase = timebase;
105 cfg_.rc_target_bitrate = 2000;
106 cfg_.g_lag_in_frames = 25;
107 // Intentionally set Q > 0, to make sure control can be used to activate
109 cfg_.rc_min_quantizer = 10;
110 cfg_.rc_max_quantizer = 20;
112 init_flags_ = VPX_CODEC_USE_PSNR;
114 libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
115 timebase.den, timebase.num, 0, 10);
116 ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
117 const double psnr_lossless = GetMinPsnr();
118 EXPECT_GE(psnr_lossless, kMaxPsnr);
121 VP9_INSTANTIATE_TEST_SUITE(LosslessTest,
122 ::testing::Values(::libvpx_test::kRealTime,
123 ::libvpx_test::kOnePassGood,
124 ::libvpx_test::kTwoPassGood));