1 // Copyright (c) 2016 The WebM project authors. All Rights Reserved.
2 //
3 // Use of this source code is governed by a BSD-style license
4 // that can be found in the LICENSE file in the root of the source
5 // tree. An additional intellectual property rights grant can be found
6 // in the file PATENTS. All contributing project authors may
7 // be found in the AUTHORS file in the root of the source tree.
8 #include "src/audio_parser.h"
9
10 #include "gtest/gtest.h"
11
12 #include "test_utils/element_parser_test.h"
13 #include "webm/id.h"
14
15 using webm::Audio;
16 using webm::AudioParser;
17 using webm::ElementParserTest;
18 using webm::Id;
19
20 namespace {
21
22 class AudioParserTest : public ElementParserTest<AudioParser, Id::kAudio> {};
23
TEST_F(AudioParserTest,DefaultParse)24 TEST_F(AudioParserTest, DefaultParse) {
25 ParseAndVerify();
26
27 const Audio audio = parser_.value();
28
29 EXPECT_FALSE(audio.sampling_frequency.is_present());
30 EXPECT_EQ(8000, audio.sampling_frequency.value());
31
32 EXPECT_FALSE(audio.output_frequency.is_present());
33 EXPECT_EQ(8000, audio.output_frequency.value());
34
35 EXPECT_FALSE(audio.channels.is_present());
36 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.channels.value());
37
38 EXPECT_FALSE(audio.bit_depth.is_present());
39 EXPECT_EQ(static_cast<std::uint64_t>(0), audio.bit_depth.value());
40 }
41
TEST_F(AudioParserTest,DefaultValues)42 TEST_F(AudioParserTest, DefaultValues) {
43 SetReaderData({
44 0xB5, // ID = 0x85 (SamplingFrequency).
45 0x40, 0x00, // Size = 0.
46
47 0x78, 0xB5, // ID = 0x78B5 (OutputSamplingFrequency).
48 0x80, // Size = 0.
49
50 0x9F, // ID = 0x9F (Channels).
51 0x40, 0x00, // Size = 0.
52
53 0x62, 0x64, // ID = 0x6264 (BitDepth).
54 0x80, // Size = 0.
55 });
56
57 ParseAndVerify();
58
59 const Audio audio = parser_.value();
60
61 EXPECT_TRUE(audio.sampling_frequency.is_present());
62 EXPECT_EQ(8000, audio.sampling_frequency.value());
63
64 EXPECT_TRUE(audio.output_frequency.is_present());
65 EXPECT_EQ(8000, audio.output_frequency.value());
66
67 EXPECT_TRUE(audio.channels.is_present());
68 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.channels.value());
69
70 EXPECT_TRUE(audio.bit_depth.is_present());
71 EXPECT_EQ(static_cast<std::uint64_t>(0), audio.bit_depth.value());
72 }
73
TEST_F(AudioParserTest,CustomValues)74 TEST_F(AudioParserTest, CustomValues) {
75 SetReaderData({
76 0xB5, // ID = 0x85 (SamplingFrequency).
77 0x84, // Size = 4.
78 0x3F, 0x80, 0x00, 0x00, // Body (value = 1.0f).
79
80 0x78, 0xB5, // ID = 0x78B5 (OutputSamplingFrequency).
81 0x84, // Size = 4.
82 0x3F, 0xDD, 0xB3, 0xD7, // Body (value = 1.73205077648162841796875f).
83
84 0x9F, // ID = 0x9F (Channels).
85 0x10, 0x00, 0x00, 0x01, // Size = 1.
86 0x02, // Body (value = 2).
87
88 0x62, 0x64, // ID = 0x6264 (BitDepth).
89 0x10, 0x00, 0x00, 0x01, // Size = 1.
90 0x01, // Body (value = 1).
91 });
92
93 ParseAndVerify();
94
95 const Audio audio = parser_.value();
96
97 EXPECT_TRUE(audio.sampling_frequency.is_present());
98 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.sampling_frequency.value());
99
100 EXPECT_TRUE(audio.output_frequency.is_present());
101 EXPECT_EQ(1.73205077648162841796875, audio.output_frequency.value());
102
103 EXPECT_TRUE(audio.channels.is_present());
104 EXPECT_EQ(static_cast<std::uint64_t>(2), audio.channels.value());
105
106 EXPECT_TRUE(audio.bit_depth.is_present());
107 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.bit_depth.value());
108 }
109
TEST_F(AudioParserTest,AbsentOutputSamplingFrequency)110 TEST_F(AudioParserTest, AbsentOutputSamplingFrequency) {
111 SetReaderData({
112 0xB5, // ID = 0x85 (SamplingFrequency).
113 0x84, // Size = 4.
114 0x3F, 0x80, 0x00, 0x00, // Body (value = 1.0f).
115 });
116
117 ParseAndVerify();
118
119 const Audio audio = parser_.value();
120
121 EXPECT_TRUE(audio.sampling_frequency.is_present());
122 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.sampling_frequency.value());
123
124 EXPECT_FALSE(audio.output_frequency.is_present());
125 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.output_frequency.value());
126
127 EXPECT_FALSE(audio.channels.is_present());
128 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.channels.value());
129
130 EXPECT_FALSE(audio.bit_depth.is_present());
131 EXPECT_EQ(static_cast<std::uint64_t>(0), audio.bit_depth.value());
132 }
133
TEST_F(AudioParserTest,DefaultOutputSamplingFrequency)134 TEST_F(AudioParserTest, DefaultOutputSamplingFrequency) {
135 SetReaderData({
136 0xB5, // ID = 0x85 (SamplingFrequency).
137 0x84, // Size = 4.
138 0x3F, 0x80, 0x00, 0x00, // Body (value = 1.0f).
139
140 0x78, 0xB5, // ID = 0x78B5 (OutputSamplingFrequency).
141 0x10, 0x00, 0x00, 0x00, // Size = 0.
142 });
143
144 ParseAndVerify();
145
146 const Audio audio = parser_.value();
147
148 EXPECT_TRUE(audio.sampling_frequency.is_present());
149 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.sampling_frequency.value());
150
151 EXPECT_TRUE(audio.output_frequency.is_present());
152 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.output_frequency.value());
153
154 EXPECT_FALSE(audio.channels.is_present());
155 EXPECT_EQ(static_cast<std::uint64_t>(1), audio.channels.value());
156
157 EXPECT_FALSE(audio.bit_depth.is_present());
158 EXPECT_EQ(static_cast<std::uint64_t>(0), audio.bit_depth.value());
159 }
160
161 } // namespace
162