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
|
/*
* Copyright (c) 2018 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 "rtc_tools/video_file_writer.h"
#include <stdint.h>
#include <cstdio>
#include <string>
#include "api/video/video_frame_buffer.h"
#include "rtc_tools/video_file_reader.h"
#include "test/gtest.h"
#include "test/testsupport/file_utils.h"
namespace webrtc {
namespace test {
class VideoFileWriterTest : public ::testing::Test {
public:
void SetUp() override {
video_filename_ = TempFilename(test::OutputPath(), "test_video_file.y4m");
// Create simple test video of size 6x4.
FILE* file = fopen(video_filename_.c_str(), "wb");
ASSERT_TRUE(file != nullptr);
fprintf(file, "YUV4MPEG2 W6 H4 F60:1 C420 dummyParam\n");
fprintf(file, "FRAME\n");
const int i420_size = width * height * 3 / 2;
// First frame.
for (int i = 0; i < i420_size; ++i)
fputc(static_cast<char>(i), file);
fprintf(file, "FRAME\n");
// Second frame.
for (int i = 0; i < i420_size; ++i)
fputc(static_cast<char>(i + i420_size), file);
fclose(file);
// Open the newly created file.
video_ = test::OpenY4mFile(video_filename_);
ASSERT_TRUE(video_);
ASSERT_EQ(video_->number_of_frames(), 2u);
}
void TearDown() override {
if (!video_filename_.empty()) {
RemoveFile(video_filename_);
}
if (!written_video_filename_.empty()) {
RemoveFile(written_video_filename_);
}
}
// Write and read Y4M file.
void WriteVideoY4m() {
// Cleanup existing file if any.
if (!written_video_filename_.empty()) {
RemoveFile(written_video_filename_);
}
// Create an unique filename, e.g. test_video_file2.y4mZapata.
written_video_filename_ =
TempFilename(test::OutputPath(), "test_video_file2.y4m");
test::WriteY4mVideoToFile(video_, written_video_filename_, fps);
written_video_ = test::OpenY4mFile(written_video_filename_);
ASSERT_TRUE(written_video_);
}
// Write and read YUV file.
void WriteVideoYuv() {
// Cleanup existing file if any.
if (!written_video_filename_.empty()) {
RemoveFile(written_video_filename_);
}
// Create an unique filename, e.g. test_video_file2.yuvZapata.
written_video_filename_ =
TempFilename(test::OutputPath(), "test_video_file2.yuv");
test::WriteYuvVideoToFile(video_, written_video_filename_, fps);
written_video_ = test::OpenYuvFile(written_video_filename_, width, height);
ASSERT_TRUE(written_video_);
}
const int width = 6;
const int height = 4;
const int fps = 60;
scoped_refptr<test::Video> video_;
scoped_refptr<test::Video> written_video_;
// Each video object must be backed by file!
std::string video_filename_;
std::string written_video_filename_;
};
TEST_F(VideoFileWriterTest, TestParsingFileHeaderY4m) {
WriteVideoY4m();
EXPECT_EQ(video_->width(), written_video_->width());
EXPECT_EQ(video_->height(), written_video_->height());
}
TEST_F(VideoFileWriterTest, TestParsingFileHeaderYuv) {
WriteVideoYuv();
EXPECT_EQ(video_->width(), written_video_->width());
EXPECT_EQ(video_->height(), written_video_->height());
}
TEST_F(VideoFileWriterTest, TestParsingNumberOfFramesY4m) {
WriteVideoY4m();
EXPECT_EQ(video_->number_of_frames(), written_video_->number_of_frames());
}
TEST_F(VideoFileWriterTest, TestParsingNumberOfFramesYuv) {
WriteVideoYuv();
EXPECT_EQ(video_->number_of_frames(), written_video_->number_of_frames());
}
TEST_F(VideoFileWriterTest, TestPixelContentY4m) {
WriteVideoY4m();
int cnt = 0;
for (const scoped_refptr<I420BufferInterface> frame : *written_video_) {
for (int i = 0; i < width * height; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataY()[i]);
for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataU()[i]);
for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataV()[i]);
}
}
TEST_F(VideoFileWriterTest, TestPixelContentYuv) {
WriteVideoYuv();
int cnt = 0;
for (const scoped_refptr<I420BufferInterface> frame : *written_video_) {
for (int i = 0; i < width * height; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataY()[i]);
for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataU()[i]);
for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
EXPECT_EQ(cnt, frame->DataV()[i]);
}
}
} // namespace test
} // namespace webrtc
|
