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 "base/basictypes.h" 6 #include "base/strings/string_number_conversions.h" 7 #include "media/audio/audio_parameters.h" 8 #include "testing/gtest/include/gtest/gtest.h" 9 10 namespace media { 11 12 TEST(AudioParameters, Constructor_Default) { 13 AudioParameters::Format expected_format = AudioParameters::AUDIO_PCM_LINEAR; 14 int expected_bits = 0; 15 int expected_channels = 0; 16 ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_NONE; 17 int expected_rate = 0; 18 int expected_samples = 0; 19 20 AudioParameters params; 21 22 EXPECT_EQ(expected_format, params.format()); 23 EXPECT_EQ(expected_bits, params.bits_per_sample()); 24 EXPECT_EQ(expected_channels, params.channels()); 25 EXPECT_EQ(expected_channel_layout, params.channel_layout()); 26 EXPECT_EQ(expected_rate, params.sample_rate()); 27 EXPECT_EQ(expected_samples, params.frames_per_buffer()); 28 } 29 30 TEST(AudioParameters, Constructor_ParameterValues) { 31 AudioParameters::Format expected_format = 32 AudioParameters::AUDIO_PCM_LOW_LATENCY; 33 int expected_bits = 16; 34 int expected_channels = 6; 35 ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_5_1; 36 int expected_rate = 44100; 37 int expected_samples = 880; 38 39 AudioParameters params(expected_format, expected_channel_layout, 40 expected_rate, expected_bits, expected_samples); 41 42 EXPECT_EQ(expected_format, params.format()); 43 EXPECT_EQ(expected_bits, params.bits_per_sample()); 44 EXPECT_EQ(expected_channels, params.channels()); 45 EXPECT_EQ(expected_channel_layout, params.channel_layout()); 46 EXPECT_EQ(expected_rate, params.sample_rate()); 47 EXPECT_EQ(expected_samples, params.frames_per_buffer()); 48 } 49 50 TEST(AudioParameters, GetBytesPerBuffer) { 51 EXPECT_EQ(100, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 52 CHANNEL_LAYOUT_MONO, 1000, 8, 100) 53 .GetBytesPerBuffer()); 54 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 55 CHANNEL_LAYOUT_MONO, 1000, 16, 100) 56 .GetBytesPerBuffer()); 57 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 58 CHANNEL_LAYOUT_STEREO, 1000, 8, 100) 59 .GetBytesPerBuffer()); 60 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 61 CHANNEL_LAYOUT_MONO, 1000, 8, 200) 62 .GetBytesPerBuffer()); 63 EXPECT_EQ(800, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 64 CHANNEL_LAYOUT_STEREO, 1000, 16, 200) 65 .GetBytesPerBuffer()); 66 } 67 68 TEST(AudioParameters, GetBytesPerSecond) { 69 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 70 CHANNEL_LAYOUT_NONE, 0, 0, 0) 71 .GetBytesPerSecond()); 72 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 73 CHANNEL_LAYOUT_STEREO, 0, 0, 0) 74 .GetBytesPerSecond()); 75 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 76 CHANNEL_LAYOUT_NONE, 100, 0, 0) 77 .GetBytesPerSecond()); 78 EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 79 CHANNEL_LAYOUT_NONE, 0, 8, 0) 80 .GetBytesPerSecond()); 81 EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 82 CHANNEL_LAYOUT_STEREO, 100, 8, 0) 83 .GetBytesPerSecond()); 84 } 85 86 TEST(AudioParameters, Compare) { 87 AudioParameters values[] = { 88 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 89 1000, 8, 100), 90 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 91 1000, 8, 200), 92 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 93 1000, 16, 100), 94 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 95 1000, 16, 200), 96 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 97 2000, 8, 100), 98 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 99 2000, 8, 200), 100 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 101 2000, 16, 100), 102 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO, 103 2000, 16, 200), 104 105 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 106 1000, 8, 100), 107 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 108 1000, 8, 200), 109 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 110 1000, 16, 100), 111 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 112 1000, 16, 200), 113 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 114 2000, 8, 100), 115 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 116 2000, 8, 200), 117 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 118 2000, 16, 100), 119 AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO, 120 2000, 16, 200), 121 122 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 123 1000, 8, 100), 124 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 125 1000, 8, 200), 126 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 127 1000, 16, 100), 128 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 129 1000, 16, 200), 130 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 131 2000, 8, 100), 132 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 133 2000, 8, 200), 134 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 135 2000, 16, 100), 136 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO, 137 2000, 16, 200), 138 139 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 140 CHANNEL_LAYOUT_STEREO, 1000, 8, 100), 141 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 142 CHANNEL_LAYOUT_STEREO, 1000, 8, 200), 143 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 144 CHANNEL_LAYOUT_STEREO, 1000, 16, 100), 145 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 146 CHANNEL_LAYOUT_STEREO, 1000, 16, 200), 147 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 148 CHANNEL_LAYOUT_STEREO, 2000, 8, 100), 149 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 150 CHANNEL_LAYOUT_STEREO, 2000, 8, 200), 151 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 152 CHANNEL_LAYOUT_STEREO, 2000, 16, 100), 153 AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 154 CHANNEL_LAYOUT_STEREO, 2000, 16, 200), 155 }; 156 157 for (size_t i = 0; i < arraysize(values); ++i) { 158 for (size_t j = 0; j < arraysize(values); ++j) { 159 SCOPED_TRACE("i=" + base::IntToString(i) + " j=" + base::IntToString(j)); 160 EXPECT_EQ(i < j, values[i] < values[j]); 161 } 162 163 // Verify that a value is never less than itself. 164 EXPECT_FALSE(values[i] < values[i]); 165 } 166 } 167 168 } // namespace media 169
