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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/basictypes.h"
#include "base/string_number_conversions.h"
#include "media/audio/audio_parameters.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(AudioParameters, Constructor_Default) {
AudioParameters::Format expected_format = AudioParameters::AUDIO_PCM_LINEAR;
int expected_bits = 0;
int expected_channels = 0;
ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_NONE;
int expected_rate = 0;
int expected_samples = 0;
AudioParameters params;
EXPECT_EQ(expected_format, params.format);
EXPECT_EQ(expected_bits, params.bits_per_sample);
EXPECT_EQ(expected_channels, params.channels);
EXPECT_EQ(expected_channel_layout, params.channel_layout);
EXPECT_EQ(expected_rate, params.sample_rate);
EXPECT_EQ(expected_samples, params.samples_per_packet);
}
TEST(AudioParameters, Constructor_ParameterValues) {
AudioParameters::Format expected_format =
AudioParameters::AUDIO_PCM_LOW_LATENCY;
int expected_bits = 16;
int expected_channels = 6;
ChannelLayout expected_channel_layout = CHANNEL_LAYOUT_5POINT1;
int expected_rate = 44100;
int expected_samples = 880;
AudioParameters params(expected_format, expected_channel_layout,
expected_rate, expected_bits, expected_samples);
EXPECT_EQ(expected_format, params.format);
EXPECT_EQ(expected_bits, params.bits_per_sample);
EXPECT_EQ(expected_channels, params.channels);
EXPECT_EQ(expected_channel_layout, params.channel_layout);
EXPECT_EQ(expected_rate, params.sample_rate);
EXPECT_EQ(expected_samples, params.samples_per_packet);
}
TEST(AudioParameters, GetPacketSize) {
EXPECT_EQ(100, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_MONO, 1000, 8, 100)
.GetPacketSize());
EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_MONO, 1000, 16, 100)
.GetPacketSize());
EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_STEREO, 1000, 8, 100)
.GetPacketSize());
EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_MONO, 1000, 8, 200)
.GetPacketSize());
EXPECT_EQ(800, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_STEREO, 1000, 16, 200)
.GetPacketSize());
}
TEST(AudioParameters, GetBytesPerSecond) {
EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_NONE, 0, 0, 0)
.GetBytesPerSecond());
EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_STEREO, 0, 0, 0)
.GetBytesPerSecond());
EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_NONE, 100, 0, 0)
.GetBytesPerSecond());
EXPECT_EQ(0, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_NONE, 0, 8, 0)
.GetBytesPerSecond());
EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
CHANNEL_LAYOUT_STEREO, 100, 8, 0)
.GetBytesPerSecond());
}
TEST(AudioParameters, Compare) {
AudioParameters values[] = {
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
1000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
1000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
1000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
1000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
2000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
2000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
2000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_MONO,
2000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
1000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
1000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
1000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
1000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
2000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
2000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
2000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
2000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
1000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
1000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
1000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
1000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
2000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
2000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
2000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_MONO,
2000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 1000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 1000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 1000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 1000, 16, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 2000, 8, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 2000, 8, 200),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 2000, 16, 100),
AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
CHANNEL_LAYOUT_STEREO, 2000, 16, 200),
};
AudioParameters::Compare target;
for (size_t i = 0; i < arraysize(values); ++i) {
for (size_t j = 0; j < arraysize(values); ++j) {
SCOPED_TRACE("i=" + base::IntToString(i) + " j=" + base::IntToString(j));
EXPECT_EQ(i < j, target(values[i], values[j]));
}
// Verify that a value is never less than itself.
EXPECT_FALSE(target(values[i], values[i]));
}
}
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