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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/*
* Copyright (c) 2019 The WebRTC 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 "test/testsupport/ivf_video_frame_generator.h"
#include <memory>
#include <vector>
#include "absl/types/optional.h"
#include "api/test/create_frame_generator.h"
#include "api/units/time_delta.h"
#include "api/video/encoded_image.h"
#include "api/video/video_codec_type.h"
#include "api/video_codecs/video_codec.h"
#include "api/video_codecs/video_encoder.h"
#include "common_video/libyuv/include/webrtc_libyuv.h"
#include "media/base/codec.h"
#include "media/base/media_constants.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp9/include/vp9.h"
#include "modules/video_coding/include/video_error_codes.h"
#include "modules/video_coding/utility/ivf_file_writer.h"
#include "rtc_base/event.h"
#include "test/gtest.h"
#include "test/testsupport/file_utils.h"
#include "test/video_codec_settings.h"
#if defined(WEBRTC_USE_H264)
#include "modules/video_coding/codecs/h264/include/h264.h"
#include "rtc_base/synchronization/mutex.h"
#endif
namespace webrtc {
namespace test {
namespace {
constexpr int kWidth = 320;
constexpr int kHeight = 240;
constexpr int kVideoFramesCount = 30;
constexpr int kMaxFramerate = 30;
constexpr TimeDelta kMaxFrameEncodeWaitTimeout = TimeDelta::Seconds(2);
static const VideoEncoder::Capabilities kCapabilities(false);
#if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS) || defined(WEBRTC_ARCH_ARM64)
constexpr double kExpectedMinPsnr = 35;
#else
constexpr double kExpectedMinPsnr = 39;
#endif
class IvfFileWriterEncodedCallback : public EncodedImageCallback {
public:
IvfFileWriterEncodedCallback(const std::string& file_name,
VideoCodecType video_codec_type,
int expected_frames_count)
: file_writer_(
IvfFileWriter::Wrap(FileWrapper::OpenWriteOnly(file_name), 0)),
video_codec_type_(video_codec_type),
expected_frames_count_(expected_frames_count) {
EXPECT_TRUE(file_writer_.get());
}
~IvfFileWriterEncodedCallback() { EXPECT_TRUE(file_writer_->Close()); }
Result OnEncodedImage(const EncodedImage& encoded_image,
const CodecSpecificInfo* codec_specific_info) override {
EXPECT_TRUE(file_writer_->WriteFrame(encoded_image, video_codec_type_));
MutexLock lock(&lock_);
received_frames_count_++;
RTC_CHECK_LE(received_frames_count_, expected_frames_count_);
if (received_frames_count_ == expected_frames_count_) {
expected_frames_count_received_.Set();
}
return Result(Result::Error::OK);
}
bool WaitForExpectedFramesReceived(TimeDelta timeout) {
return expected_frames_count_received_.Wait(timeout);
}
private:
std::unique_ptr<IvfFileWriter> file_writer_;
const VideoCodecType video_codec_type_;
const int expected_frames_count_;
Mutex lock_;
int received_frames_count_ RTC_GUARDED_BY(lock_) = 0;
rtc::Event expected_frames_count_received_;
};
class IvfVideoFrameGeneratorTest : public ::testing::Test {
protected:
void SetUp() override {
file_name_ =
webrtc::test::TempFilename(webrtc::test::OutputPath(), "test_file.ivf");
}
void TearDown() override { webrtc::test::RemoveFile(file_name_); }
VideoFrame BuildFrame(FrameGeneratorInterface::VideoFrameData frame_data) {
return VideoFrame::Builder()
.set_video_frame_buffer(frame_data.buffer)
.set_update_rect(frame_data.update_rect)
.build();
}
void CreateTestVideoFile(VideoCodecType video_codec_type,
std::unique_ptr<VideoEncoder> video_encoder) {
std::unique_ptr<test::FrameGeneratorInterface> frame_generator =
test::CreateSquareFrameGenerator(
kWidth, kHeight, test::FrameGeneratorInterface::OutputType::kI420,
absl::nullopt);
VideoCodec codec_settings;
webrtc::test::CodecSettings(video_codec_type, &codec_settings);
codec_settings.width = kWidth;
codec_settings.height = kHeight;
codec_settings.maxFramerate = kMaxFramerate;
const uint32_t kBitrateBps = 500000;
VideoBitrateAllocation bitrate_allocation;
bitrate_allocation.SetBitrate(0, 0, kBitrateBps);
IvfFileWriterEncodedCallback ivf_writer_callback(
file_name_, video_codec_type, kVideoFramesCount);
video_encoder->RegisterEncodeCompleteCallback(&ivf_writer_callback);
video_encoder->SetRates(VideoEncoder::RateControlParameters(
bitrate_allocation, static_cast<double>(codec_settings.maxFramerate)));
ASSERT_EQ(WEBRTC_VIDEO_CODEC_OK,
video_encoder->InitEncode(
&codec_settings,
VideoEncoder::Settings(kCapabilities, /*number_of_cores=*/1,
/*max_payload_size=*/0)));
uint32_t last_frame_timestamp = 0;
for (int i = 0; i < kVideoFramesCount; ++i) {
VideoFrame frame = BuildFrame(frame_generator->NextFrame());
const uint32_t timestamp =
last_frame_timestamp +
kVideoPayloadTypeFrequency / codec_settings.maxFramerate;
frame.set_timestamp(timestamp);
last_frame_timestamp = timestamp;
ASSERT_EQ(WEBRTC_VIDEO_CODEC_OK, video_encoder->Encode(frame, nullptr));
video_frames_.push_back(frame);
}
ASSERT_TRUE(ivf_writer_callback.WaitForExpectedFramesReceived(
kMaxFrameEncodeWaitTimeout));
}
std::string file_name_;
std::vector<VideoFrame> video_frames_;
};
} // namespace
TEST_F(IvfVideoFrameGeneratorTest, DoesNotKnowFps) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP8, VP8Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
EXPECT_EQ(generator.fps(), absl::nullopt);
}
TEST_F(IvfVideoFrameGeneratorTest, Vp8) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP8, VP8Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
TEST_F(IvfVideoFrameGeneratorTest, Vp8DoubleRead) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP8, VP8Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size() * 2; ++i) {
auto& expected_frame = video_frames_[i % video_frames_.size()];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
TEST_F(IvfVideoFrameGeneratorTest, Vp9) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP9, VP9Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
#if defined(WEBRTC_USE_H264)
TEST_F(IvfVideoFrameGeneratorTest, H264) {
CreateTestVideoFile(VideoCodecType::kVideoCodecH264, H264Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
#endif
} // namespace test
} // namespace webrtc
|