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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include <stddef.h> |
| 6 |
| 7 #include "base/macros.h" |
| 8 #include "base/strings/string_number_conversions.h" |
| 9 #include "media/base/audio_parameters.h" |
| 10 #include "testing/gtest/include/gtest/gtest.h" |
| 11 |
| 12 namespace media { |
| 13 |
| 14 TEST(AudioParameters, Constructor_Default) { |
| 15 AudioParameters::Format expected_format = AudioParameters::AUDIO_PCM_LINEAR; |
| 16 int expected_bits = 0; |
| 17 int expected_channels = 0; |
| 18 ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_NONE; |
| 19 int expected_rate = 0; |
| 20 int expected_samples = 0; |
| 21 AudioParameters::PlatformEffectsMask expected_effects = |
| 22 AudioParameters::NO_EFFECTS; |
| 23 std::vector<Point> expected_mic_positions; |
| 24 |
| 25 AudioParameters params; |
| 26 |
| 27 EXPECT_EQ(expected_format, params.format()); |
| 28 EXPECT_EQ(expected_bits, params.bits_per_sample()); |
| 29 EXPECT_EQ(expected_channels, params.channels()); |
| 30 EXPECT_EQ(expected_channel_layout, params.channel_layout()); |
| 31 EXPECT_EQ(expected_rate, params.sample_rate()); |
| 32 EXPECT_EQ(expected_samples, params.frames_per_buffer()); |
| 33 EXPECT_EQ(expected_effects, params.effects()); |
| 34 EXPECT_EQ(expected_mic_positions, params.mic_positions()); |
| 35 } |
| 36 |
| 37 TEST(AudioParameters, Constructor_ParameterValues) { |
| 38 AudioParameters::Format expected_format = |
| 39 AudioParameters::AUDIO_PCM_LOW_LATENCY; |
| 40 int expected_bits = 16; |
| 41 int expected_channels = 6; |
| 42 ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_5_1; |
| 43 int expected_rate = 44100; |
| 44 int expected_samples = 880; |
| 45 |
| 46 AudioParameters params(expected_format, expected_channel_layout, |
| 47 expected_rate, expected_bits, expected_samples); |
| 48 |
| 49 EXPECT_EQ(expected_format, params.format()); |
| 50 EXPECT_EQ(expected_bits, params.bits_per_sample()); |
| 51 EXPECT_EQ(expected_channels, params.channels()); |
| 52 EXPECT_EQ(expected_channel_layout, params.channel_layout()); |
| 53 EXPECT_EQ(expected_rate, params.sample_rate()); |
| 54 EXPECT_EQ(expected_samples, params.frames_per_buffer()); |
| 55 } |
| 56 |
| 57 TEST(AudioParameters, GetBytesPerBuffer) { |
| 58 EXPECT_EQ(100, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 59 CHANNEL_LAYOUT_MONO, 1000, 8, 100) |
| 60 .GetBytesPerBuffer()); |
| 61 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 62 CHANNEL_LAYOUT_MONO, 1000, 16, 100) |
| 63 .GetBytesPerBuffer()); |
| 64 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 65 CHANNEL_LAYOUT_STEREO, 1000, 8, 100) |
| 66 .GetBytesPerBuffer()); |
| 67 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 68 CHANNEL_LAYOUT_MONO, 1000, 8, 200) |
| 69 .GetBytesPerBuffer()); |
| 70 EXPECT_EQ(800, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 71 CHANNEL_LAYOUT_STEREO, 1000, 16, 200) |
| 72 .GetBytesPerBuffer()); |
| 73 EXPECT_EQ( |
| 74 300, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 75 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 8, 100) |
| 76 .GetBytesPerBuffer()); |
| 77 } |
| 78 |
| 79 TEST(AudioParameters, GetBytesPerSecond) { |
| 80 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 81 CHANNEL_LAYOUT_NONE, 0, 0, 0) |
| 82 .GetBytesPerSecond()); |
| 83 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 84 CHANNEL_LAYOUT_STEREO, 0, 0, 0) |
| 85 .GetBytesPerSecond()); |
| 86 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 87 CHANNEL_LAYOUT_NONE, 100, 0, 0) |
| 88 .GetBytesPerSecond()); |
| 89 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 90 CHANNEL_LAYOUT_NONE, 0, 8, 0) |
| 91 .GetBytesPerSecond()); |
| 92 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 93 CHANNEL_LAYOUT_STEREO, 100, 8, 0) |
| 94 .GetBytesPerSecond()); |
| 95 } |
| 96 |
| 97 TEST(AudioParameters, Compare) { |
| 98 AudioParameters values[] = { |
| 99 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 100 1000, 8, 100), |
| 101 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 102 1000, 8, 200), |
| 103 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 104 1000, 16, 100), |
| 105 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 106 1000, 16, 200), |
| 107 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 108 2000, 8, 100), |
| 109 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 110 2000, 8, 200), |
| 111 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 112 2000, 16, 100), |
| 113 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, |
| 114 2000, 16, 200), |
| 115 |
| 116 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 117 1000, 8, 100), |
| 118 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 119 1000, 8, 200), |
| 120 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 121 1000, 16, 100), |
| 122 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 123 1000, 16, 200), |
| 124 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 125 2000, 8, 100), |
| 126 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 127 2000, 8, 200), |
| 128 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 129 2000, 16, 100), |
| 130 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, |
| 131 2000, 16, 200), |
| 132 |
| 133 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 134 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 8, 100), |
| 135 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 136 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 8, 200), |
| 137 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 138 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 16, 100), |
| 139 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 140 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 16, 200), |
| 141 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 142 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 8, 100), |
| 143 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 144 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 8, 200), |
| 145 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 146 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 16, 100), |
| 147 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, |
| 148 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 16, 200), |
| 149 |
| 150 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 151 CHANNEL_LAYOUT_MONO, 1000, 8, 100), |
| 152 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 153 CHANNEL_LAYOUT_MONO, 1000, 8, 200), |
| 154 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 155 CHANNEL_LAYOUT_MONO, 1000, 16, 100), |
| 156 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 157 CHANNEL_LAYOUT_MONO, 1000, 16, 200), |
| 158 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 159 CHANNEL_LAYOUT_MONO, 2000, 8, 100), |
| 160 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 161 CHANNEL_LAYOUT_MONO, 2000, 8, 200), |
| 162 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 163 CHANNEL_LAYOUT_MONO, 2000, 16, 100), |
| 164 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 165 CHANNEL_LAYOUT_MONO, 2000, 16, 200), |
| 166 |
| 167 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 168 CHANNEL_LAYOUT_STEREO, 1000, 8, 100), |
| 169 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 170 CHANNEL_LAYOUT_STEREO, 1000, 8, 200), |
| 171 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 172 CHANNEL_LAYOUT_STEREO, 1000, 16, 100), |
| 173 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 174 CHANNEL_LAYOUT_STEREO, 1000, 16, 200), |
| 175 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 176 CHANNEL_LAYOUT_STEREO, 2000, 8, 100), |
| 177 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 178 CHANNEL_LAYOUT_STEREO, 2000, 8, 200), |
| 179 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 180 CHANNEL_LAYOUT_STEREO, 2000, 16, 100), |
| 181 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 182 CHANNEL_LAYOUT_STEREO, 2000, 16, 200), |
| 183 |
| 184 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 185 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 8, 100), |
| 186 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 187 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 8, 200), |
| 188 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 189 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 16, 100), |
| 190 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 191 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 1000, 16, 200), |
| 192 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 193 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 8, 100), |
| 194 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 195 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 8, 200), |
| 196 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 197 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 16, 100), |
| 198 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 199 CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC, 2000, 16, 200), |
| 200 }; |
| 201 |
| 202 for (size_t i = 0; i < arraysize(values); ++i) { |
| 203 for (size_t j = 0; j < arraysize(values); ++j) { |
| 204 SCOPED_TRACE("i=" + base::SizeTToString(i) + " j=" + |
| 205 base::SizeTToString(j)); |
| 206 EXPECT_EQ(i < j, values[i] < values[j]); |
| 207 } |
| 208 |
| 209 // Verify that a value is never less than itself. |
| 210 EXPECT_FALSE(values[i] < values[i]); |
| 211 } |
| 212 } |
| 213 |
| 214 TEST(AudioParameters, Constructor_ValidChannelCounts) { |
| 215 int expected_channels = 8; |
| 216 ChannelLayout expected_layout = CHANNEL_LAYOUT_DISCRETE; |
| 217 |
| 218 AudioParameters params(AudioParameters::AUDIO_PCM_LOW_LATENCY, |
| 219 expected_layout, 44100, 16, 880); |
| 220 params.set_channels_for_discrete(expected_channels); |
| 221 EXPECT_EQ(expected_channels, params.channels()); |
| 222 EXPECT_EQ(expected_layout, params.channel_layout()); |
| 223 EXPECT_TRUE(params.IsValid()); |
| 224 } |
| 225 |
| 226 } // namespace media |
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