1 /*
2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
3 *
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.
9 */
10
11 #include <string>
12
13 #include "gtest/gtest.h"
14
15 #include "./vpx_config.h"
16 #include "./y4menc.h"
17 #include "test/md5_helper.h"
18 #include "test/util.h"
19 #include "test/y4m_video_source.h"
20
21 namespace {
22
23 using std::string;
24
25 static const unsigned int kWidth = 160;
26 static const unsigned int kHeight = 90;
27 static const unsigned int kFrames = 10;
28
29 struct Y4mTestParam {
30 const char *filename;
31 unsigned int bit_depth;
32 vpx_img_fmt format;
33 const char *md5raw;
34 };
35
36 const Y4mTestParam kY4mTestVectors[] = {
37 { "park_joy_90p_8_420.y4m", 8, VPX_IMG_FMT_I420,
38 "e5406275b9fc6bb3436c31d4a05c1cab" },
39 { "park_joy_90p_8_422.y4m", 8, VPX_IMG_FMT_I422,
40 "284a47a47133b12884ec3a14e959a0b6" },
41 { "park_joy_90p_8_444.y4m", 8, VPX_IMG_FMT_I444,
42 "90517ff33843d85de712fd4fe60dbed0" },
43 { "park_joy_90p_10_420_20f.y4m", 10, VPX_IMG_FMT_I42016,
44 "2f56ab9809269f074df7e3daf1ce0be6" },
45 { "park_joy_90p_10_422_20f.y4m", 10, VPX_IMG_FMT_I42216,
46 "1b5c73d2e8e8c4e02dc4889ecac41c83" },
47 { "park_joy_90p_10_444_20f.y4m", 10, VPX_IMG_FMT_I44416,
48 "ec4ab5be53195c5b838d1d19e1bc2674" },
49 { "park_joy_90p_12_420_20f.y4m", 12, VPX_IMG_FMT_I42016,
50 "3370856c8ddebbd1f9bb2e66f97677f4" },
51 { "park_joy_90p_12_422_20f.y4m", 12, VPX_IMG_FMT_I42216,
52 "4eab364318dd8201acbb182e43bd4966" },
53 { "park_joy_90p_12_444_20f.y4m", 12, VPX_IMG_FMT_I44416,
54 "f189dfbbd92119fc8e5f211a550166be" },
55 };
56
write_image_file(const vpx_image_t * img,FILE * file)57 static void write_image_file(const vpx_image_t *img, FILE *file) {
58 int plane, y;
59 for (plane = 0; plane < 3; ++plane) {
60 const unsigned char *buf = img->planes[plane];
61 const int stride = img->stride[plane];
62 const int bytes_per_sample = (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
63 const int h =
64 (plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift
65 : img->d_h);
66 const int w =
67 (plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift
68 : img->d_w);
69 for (y = 0; y < h; ++y) {
70 fwrite(buf, bytes_per_sample, w, file);
71 buf += stride;
72 }
73 }
74 }
75
76 class Y4mVideoSourceTest : public ::testing::TestWithParam<Y4mTestParam>,
77 public ::libvpx_test::Y4mVideoSource {
78 protected:
Y4mVideoSourceTest()79 Y4mVideoSourceTest() : Y4mVideoSource("", 0, 0) {}
80
~Y4mVideoSourceTest()81 ~Y4mVideoSourceTest() override { CloseSource(); }
82
Init(const std::string & file_name,int limit)83 virtual void Init(const std::string &file_name, int limit) {
84 file_name_ = file_name;
85 start_ = 0;
86 limit_ = limit;
87 frame_ = 0;
88 Begin();
89 }
90
91 // Checks y4m header information
HeaderChecks(unsigned int bit_depth,vpx_img_fmt_t fmt)92 void HeaderChecks(unsigned int bit_depth, vpx_img_fmt_t fmt) {
93 ASSERT_NE(input_file_, nullptr);
94 ASSERT_EQ(y4m_.pic_w, (int)kWidth);
95 ASSERT_EQ(y4m_.pic_h, (int)kHeight);
96 ASSERT_EQ(img()->d_w, kWidth);
97 ASSERT_EQ(img()->d_h, kHeight);
98 ASSERT_EQ(y4m_.bit_depth, bit_depth);
99 ASSERT_EQ(y4m_.vpx_fmt, fmt);
100 if (fmt == VPX_IMG_FMT_I420 || fmt == VPX_IMG_FMT_I42016) {
101 ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3 / 2);
102 ASSERT_EQ(img()->x_chroma_shift, 1U);
103 ASSERT_EQ(img()->y_chroma_shift, 1U);
104 }
105 if (fmt == VPX_IMG_FMT_I422 || fmt == VPX_IMG_FMT_I42216) {
106 ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 2);
107 ASSERT_EQ(img()->x_chroma_shift, 1U);
108 ASSERT_EQ(img()->y_chroma_shift, 0U);
109 }
110 if (fmt == VPX_IMG_FMT_I444 || fmt == VPX_IMG_FMT_I44416) {
111 ASSERT_EQ(y4m_.bps, (int)y4m_.bit_depth * 3);
112 ASSERT_EQ(img()->x_chroma_shift, 0U);
113 ASSERT_EQ(img()->y_chroma_shift, 0U);
114 }
115 }
116
117 // Checks MD5 of the raw frame data
Md5Check(const string & expected_md5)118 void Md5Check(const string &expected_md5) {
119 ASSERT_NE(input_file_, nullptr);
120 libvpx_test::MD5 md5;
121 for (unsigned int i = start_; i < limit_; i++) {
122 md5.Add(img());
123 Next();
124 }
125 ASSERT_EQ(string(md5.Get()), expected_md5);
126 }
127 };
128
TEST_P(Y4mVideoSourceTest,SourceTest)129 TEST_P(Y4mVideoSourceTest, SourceTest) {
130 const Y4mTestParam t = GetParam();
131 Init(t.filename, kFrames);
132 HeaderChecks(t.bit_depth, t.format);
133 Md5Check(t.md5raw);
134 }
135
136 INSTANTIATE_TEST_SUITE_P(C, Y4mVideoSourceTest,
137 ::testing::ValuesIn(kY4mTestVectors));
138
139 class Y4mVideoWriteTest : public Y4mVideoSourceTest {
140 protected:
Y4mVideoWriteTest()141 Y4mVideoWriteTest() : tmpfile_(nullptr) {}
142
~Y4mVideoWriteTest()143 ~Y4mVideoWriteTest() override {
144 delete tmpfile_;
145 input_file_ = nullptr;
146 }
147
ReplaceInputFile(FILE * input_file)148 void ReplaceInputFile(FILE *input_file) {
149 CloseSource();
150 frame_ = 0;
151 input_file_ = input_file;
152 rewind(input_file_);
153 ReadSourceToStart();
154 }
155
156 // Writes out a y4m file and then reads it back
WriteY4mAndReadBack()157 void WriteY4mAndReadBack() {
158 ASSERT_NE(input_file_, nullptr);
159 char buf[Y4M_BUFFER_SIZE] = { 0 };
160 const struct VpxRational framerate = { y4m_.fps_n, y4m_.fps_d };
161 tmpfile_ = new libvpx_test::TempOutFile;
162 ASSERT_NE(tmpfile_->file(), nullptr);
163 y4m_write_file_header(buf, sizeof(buf), kWidth, kHeight, &framerate,
164 y4m_.vpx_fmt, y4m_.bit_depth);
165 fputs(buf, tmpfile_->file());
166 for (unsigned int i = start_; i < limit_; i++) {
167 y4m_write_frame_header(buf, sizeof(buf));
168 fputs(buf, tmpfile_->file());
169 write_image_file(img(), tmpfile_->file());
170 Next();
171 }
172 ReplaceInputFile(tmpfile_->file());
173 }
174
Init(const std::string & file_name,int limit)175 void Init(const std::string &file_name, int limit) override {
176 Y4mVideoSourceTest::Init(file_name, limit);
177 WriteY4mAndReadBack();
178 }
179 libvpx_test::TempOutFile *tmpfile_;
180 };
181
TEST_P(Y4mVideoWriteTest,WriteTest)182 TEST_P(Y4mVideoWriteTest, WriteTest) {
183 const Y4mTestParam t = GetParam();
184 Init(t.filename, kFrames);
185 HeaderChecks(t.bit_depth, t.format);
186 Md5Check(t.md5raw);
187 }
188
189 INSTANTIATE_TEST_SUITE_P(C, Y4mVideoWriteTest,
190 ::testing::ValuesIn(kY4mTestVectors));
191
192 static const char kY4MRegularHeader[] =
193 "YUV4MPEG2 W4 H4 F30:1 Ip A0:0 C420jpeg XYSCSS=420JPEG\n"
194 "FRAME\n"
195 "012345678912345601230123";
196
TEST(Y4MHeaderTest,RegularHeader)197 TEST(Y4MHeaderTest, RegularHeader) {
198 libvpx_test::TempOutFile f;
199 ASSERT_NE(f.file(), nullptr);
200 fwrite(kY4MRegularHeader, 1, sizeof(kY4MRegularHeader), f.file());
201 fflush(f.file());
202 EXPECT_EQ(0, fseek(f.file(), 0, 0));
203
204 y4m_input y4m;
205 EXPECT_EQ(y4m_input_open(&y4m, f.file(), /*skip_buffer=*/nullptr,
206 /*num_skip=*/0, /*only_420=*/0),
207 0);
208 EXPECT_EQ(y4m.pic_w, 4);
209 EXPECT_EQ(y4m.pic_h, 4);
210 EXPECT_EQ(y4m.fps_n, 30);
211 EXPECT_EQ(y4m.fps_d, 1);
212 EXPECT_EQ(y4m.interlace, 'p');
213 EXPECT_EQ(strcmp("420jpeg", y4m.chroma_type), 0);
214 y4m_input_close(&y4m);
215 }
216
217 // Testing that headers over 100 characters can be parsed.
218 static const char kY4MLongHeader[] =
219 "YUV4MPEG2 W4 H4 F30:1 Ip A0:0 C420jpeg XYSCSS=420JPEG "
220 "XCOLORRANGE=LIMITED XSOME_UNKNOWN_METADATA XOTHER_UNKNOWN_METADATA\n"
221 "FRAME\n"
222 "012345678912345601230123";
223
TEST(Y4MHeaderTest,LongHeader)224 TEST(Y4MHeaderTest, LongHeader) {
225 libvpx_test::TempOutFile f;
226 ASSERT_NE(f.file(), nullptr);
227 fwrite(kY4MLongHeader, 1, sizeof(kY4MLongHeader), f.file());
228 fflush(f.file());
229 EXPECT_EQ(fseek(f.file(), 0, 0), 0);
230
231 y4m_input y4m;
232 EXPECT_EQ(y4m_input_open(&y4m, f.file(), /*skip_buffer=*/nullptr,
233 /*num_skip=*/0, /*only_420=*/0),
234 0);
235 EXPECT_EQ(y4m.pic_w, 4);
236 EXPECT_EQ(y4m.pic_h, 4);
237 EXPECT_EQ(y4m.fps_n, 30);
238 EXPECT_EQ(y4m.fps_d, 1);
239 EXPECT_EQ(y4m.interlace, 'p');
240 EXPECT_EQ(strcmp("420jpeg", y4m.chroma_type), 0);
241 y4m_input_close(&y4m);
242 }
243
244 } // namespace
245