1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/util.h"
#include "test/y4m_video_source.h"
namespace {
const int kMaxPsnr = 100;
class LosslessTest : public ::libvpx_test::EncoderTest,
public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
protected:
LosslessTest()
: EncoderTest(GET_PARAM(0)),
psnr_(kMaxPsnr),
nframes_(0),
encoding_mode_(GET_PARAM(1)) {
}
virtual ~LosslessTest() {}
virtual void SetUp() {
InitializeConfig();
SetMode(encoding_mode_);
}
virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
::libvpx_test::Encoder *encoder) {
if (video->frame() == 1) {
// Only call Control if quantizer > 0 to verify that using quantizer
// alone will activate lossless
if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
encoder->Control(VP9E_SET_LOSSLESS, 1);
}
}
}
virtual void BeginPassHook(unsigned int /*pass*/) {
psnr_ = kMaxPsnr;
nframes_ = 0;
}
virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
if (pkt->data.psnr.psnr[0] < psnr_)
psnr_= pkt->data.psnr.psnr[0];
}
double GetMinPsnr() const {
return psnr_;
}
private:
double psnr_;
unsigned int nframes_;
libvpx_test::TestMode encoding_mode_;
};
TEST_P(LosslessTest, TestLossLessEncoding) {
const vpx_rational timebase = { 33333333, 1000000000 };
cfg_.g_timebase = timebase;
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
cfg_.rc_min_quantizer = 0;
cfg_.rc_max_quantizer = 0;
init_flags_ = VPX_CODEC_USE_PSNR;
// intentionally changed the dimension for better testing coverage
libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
timebase.den, timebase.num, 0, 10);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double psnr_lossless = GetMinPsnr();
EXPECT_GE(psnr_lossless, kMaxPsnr);
}
TEST_P(LosslessTest, TestLossLessEncoding444) {
libvpx_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 10);
cfg_.g_profile = 1;
cfg_.g_timebase = video.timebase();
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
cfg_.rc_min_quantizer = 0;
cfg_.rc_max_quantizer = 0;
init_flags_ = VPX_CODEC_USE_PSNR;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double psnr_lossless = GetMinPsnr();
EXPECT_GE(psnr_lossless, kMaxPsnr);
}
TEST_P(LosslessTest, TestLossLessEncodingCtrl) {
const vpx_rational timebase = { 33333333, 1000000000 };
cfg_.g_timebase = timebase;
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
// Intentionally set Q > 0, to make sure control can be used to activate
// lossless
cfg_.rc_min_quantizer = 10;
cfg_.rc_max_quantizer = 20;
init_flags_ = VPX_CODEC_USE_PSNR;
libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
timebase.den, timebase.num, 0, 10);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double psnr_lossless = GetMinPsnr();
EXPECT_GE(psnr_lossless, kMaxPsnr);
}
VP9_INSTANTIATE_TEST_CASE(LosslessTest,
::testing::Values(::libvpx_test::kRealTime,
::libvpx_test::kOnePassGood,
::libvpx_test::kTwoPassGood));
VP10_INSTANTIATE_TEST_CASE(LosslessTest,
::testing::Values(::libvpx_test::kOnePassGood,
::libvpx_test::kTwoPassGood));
} // namespace
|
