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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/*
* Copyright (c) 2012 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 <string>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "./y4menc.h"
#include "test/md5_helper.h"
#include "test/util.h"
#include "test/y4m_video_source.h"
namespace {
using std::string;
static const unsigned int kWidth = 160;
static const unsigned int kHeight = 90;
static const unsigned int kFrames = 10;
struct Y4mTestParam {
const char *filename;
unsigned int bit_depth;
vpx_img_fmt format;
const char *md5raw;
};
const Y4mTestParam kY4mTestVectors[] = {
{ "park_joy_90p_8_420.y4m", 8, VPX_IMG_FMT_I420,
"e5406275b9fc6bb3436c31d4a05c1cab" },
{ "park_joy_90p_8_422.y4m", 8, VPX_IMG_FMT_I422,
"284a47a47133b12884ec3a14e959a0b6" },
{ "park_joy_90p_8_444.y4m", 8, VPX_IMG_FMT_I444,
"90517ff33843d85de712fd4fe60dbed0" },
{ "park_joy_90p_10_420_20f.y4m", 10, VPX_IMG_FMT_I42016,
"2f56ab9809269f074df7e3daf1ce0be6" },
{ "park_joy_90p_10_422_20f.y4m", 10, VPX_IMG_FMT_I42216,
"1b5c73d2e8e8c4e02dc4889ecac41c83" },
{ "park_joy_90p_10_444_20f.y4m", 10, VPX_IMG_FMT_I44416,
"ec4ab5be53195c5b838d1d19e1bc2674" },
{ "park_joy_90p_12_420_20f.y4m", 12, VPX_IMG_FMT_I42016,
"3370856c8ddebbd1f9bb2e66f97677f4" },
{ "park_joy_90p_12_422_20f.y4m", 12, VPX_IMG_FMT_I42216,
"4eab364318dd8201acbb182e43bd4966" },
{ "park_joy_90p_12_444_20f.y4m", 12, VPX_IMG_FMT_I44416,
"f189dfbbd92119fc8e5f211a550166be" },
};
static void write_image_file(const vpx_image_t *img, FILE *file) {
int plane, y;
for (plane = 0; plane < 3; ++plane) {
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int bytes_per_sample = (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
const int h =
(plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift
: img->d_h);
const int w =
(plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift
: img->d_w);
for (y = 0; y < h; ++y) {
fwrite(buf, bytes_per_sample, w, file);
buf += stride;
}
}
}
class Y4mVideoSourceTest : public ::testing::TestWithParam<Y4mTestParam>,
public ::libvpx_test::Y4mVideoSource {
protected:
Y4mVideoSourceTest() : Y4mVideoSource("", 0, 0) {}
virtual ~Y4mVideoSourceTest() { CloseSource(); }
virtual void Init(const std::string &file_name, int limit) {
file_name_ = file_name;
start_ = 0;
limit_ = limit;
frame_ = 0;
Begin();
}
// Checks y4m header information
void HeaderChecks(unsigned int bit_depth, vpx_img_fmt_t fmt) {
ASSERT_NE(input_file_, nullptr);
ASSERT_EQ(y4m_.pic_w, (int)kWidth);
ASSERT_EQ(y4m_.pic_h, (int)kHeight);
ASSERT_EQ(img()->d_w, kWidth);
ASSERT_EQ(img()->d_h, kHeight);
ASSERT_EQ(y4m_.bit_depth, bit_depth);
ASSERT_EQ(y4m_.vpx_fmt, fmt);
if (fmt == VPX_IMG_FMT_I420 || fmt == VPX_IMG_FMT_I42016) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3 / 2);
ASSERT_EQ(img()->x_chroma_shift, 1U);
ASSERT_EQ(img()->y_chroma_shift, 1U);
}
if (fmt == VPX_IMG_FMT_I422 || fmt == VPX_IMG_FMT_I42216) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 2);
ASSERT_EQ(img()->x_chroma_shift, 1U);
ASSERT_EQ(img()->y_chroma_shift, 0U);
}
if (fmt == VPX_IMG_FMT_I444 || fmt == VPX_IMG_FMT_I44416) {
ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3);
ASSERT_EQ(img()->x_chroma_shift, 0U);
ASSERT_EQ(img()->y_chroma_shift, 0U);
}
}
// Checks MD5 of the raw frame data
void Md5Check(const string &expected_md5) {
ASSERT_NE(input_file_, nullptr);
libvpx_test::MD5 md5;
for (unsigned int i = start_; i < limit_; i++) {
md5.Add(img());
Next();
}
ASSERT_EQ(string(md5.Get()), expected_md5);
}
};
TEST_P(Y4mVideoSourceTest, SourceTest) {
const Y4mTestParam t = GetParam();
Init(t.filename, kFrames);
HeaderChecks(t.bit_depth, t.format);
Md5Check(t.md5raw);
}
INSTANTIATE_TEST_SUITE_P(C, Y4mVideoSourceTest,
::testing::ValuesIn(kY4mTestVectors));
class Y4mVideoWriteTest : public Y4mVideoSourceTest {
protected:
Y4mVideoWriteTest() : tmpfile_(nullptr) {}
virtual ~Y4mVideoWriteTest() {
delete tmpfile_;
input_file_ = nullptr;
}
void ReplaceInputFile(FILE *input_file) {
CloseSource();
frame_ = 0;
input_file_ = input_file;
rewind(input_file_);
ReadSourceToStart();
}
// Writes out a y4m file and then reads it back
void WriteY4mAndReadBack() {
ASSERT_NE(input_file_, nullptr);
char buf[Y4M_BUFFER_SIZE] = { 0 };
const struct VpxRational framerate = { y4m_.fps_n, y4m_.fps_d };
tmpfile_ = new libvpx_test::TempOutFile;
ASSERT_NE(tmpfile_->file(), nullptr);
y4m_write_file_header(buf, sizeof(buf), kWidth, kHeight, &framerate,
y4m_.vpx_fmt, y4m_.bit_depth);
fputs(buf, tmpfile_->file());
for (unsigned int i = start_; i < limit_; i++) {
y4m_write_frame_header(buf, sizeof(buf));
fputs(buf, tmpfile_->file());
write_image_file(img(), tmpfile_->file());
Next();
}
ReplaceInputFile(tmpfile_->file());
}
virtual void Init(const std::string &file_name, int limit) {
Y4mVideoSourceTest::Init(file_name, limit);
WriteY4mAndReadBack();
}
libvpx_test::TempOutFile *tmpfile_;
};
TEST_P(Y4mVideoWriteTest, WriteTest) {
const Y4mTestParam t = GetParam();
Init(t.filename, kFrames);
HeaderChecks(t.bit_depth, t.format);
Md5Check(t.md5raw);
}
INSTANTIATE_TEST_SUITE_P(C, Y4mVideoWriteTest,
::testing::ValuesIn(kY4mTestVectors));
static const char kY4MRegularHeader[] =
"YUV4MPEG2 W4 H4 F30:1 Ip A0:0 C420jpeg XYSCSS=420JPEG\n"
"FRAME\n"
"012345678912345601230123";
TEST(Y4MHeaderTest, RegularHeader) {
libvpx_test::TempOutFile f;
fwrite(kY4MRegularHeader, 1, sizeof(kY4MRegularHeader), f.file());
fflush(f.file());
EXPECT_EQ(0, fseek(f.file(), 0, 0));
y4m_input y4m;
EXPECT_EQ(y4m_input_open(&y4m, f.file(), /*skip_buffer=*/NULL,
/*num_skip=*/0, /*only_420=*/0),
0);
EXPECT_EQ(y4m.pic_w, 4);
EXPECT_EQ(y4m.pic_h, 4);
EXPECT_EQ(y4m.fps_n, 30);
EXPECT_EQ(y4m.fps_d, 1);
EXPECT_EQ(y4m.interlace, 'p');
EXPECT_EQ(strcmp("420jpeg", y4m.chroma_type), 0);
y4m_input_close(&y4m);
}
// Testing that headers over 100 characters can be parsed.
static const char kY4MLongHeader[] =
"YUV4MPEG2 W4 H4 F30:1 Ip A0:0 C420jpeg XYSCSS=420JPEG "
"XCOLORRANGE=LIMITED XSOME_UNKNOWN_METADATA XOTHER_UNKNOWN_METADATA\n"
"FRAME\n"
"012345678912345601230123";
TEST(Y4MHeaderTest, LongHeader) {
libvpx_test::TempOutFile f;
fwrite(kY4MLongHeader, 1, sizeof(kY4MLongHeader), f.file());
fflush(f.file());
EXPECT_EQ(fseek(f.file(), 0, 0), 0);
y4m_input y4m;
EXPECT_EQ(y4m_input_open(&y4m, f.file(), /*skip_buffer=*/NULL,
/*num_skip=*/0, /*only_420=*/0),
0);
EXPECT_EQ(y4m.pic_w, 4);
EXPECT_EQ(y4m.pic_h, 4);
EXPECT_EQ(y4m.fps_n, 30);
EXPECT_EQ(y4m.fps_d, 1);
EXPECT_EQ(y4m.interlace, 'p');
EXPECT_EQ(strcmp("420jpeg", y4m.chroma_type), 0);
y4m_input_close(&y4m);
}
} // namespace
|
