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// Copyright (c) 2012 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/environment.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/threading/platform_thread.h"
#include "media/audio/audio_io.h"
#include "media/audio/audio_manager_base.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
static const int kSamplingRate = 8000;
static const int kSamplesPerPacket = kSamplingRate / 20;
// This class allows to find out if the callbacks are occurring as
// expected and if any error has been reported.
class TestInputCallback : public AudioInputStream::AudioInputCallback {
public:
explicit TestInputCallback(int max_data_bytes)
: callback_count_(0),
had_error_(0),
max_data_bytes_(max_data_bytes) {
}
virtual void OnData(AudioInputStream* stream,
const uint8* data,
uint32 size,
uint32 hardware_delay_bytes,
double volume) OVERRIDE {
++callback_count_;
// Read the first byte to make sure memory is good.
if (size) {
ASSERT_LE(static_cast<int>(size), max_data_bytes_);
int value = data[0];
EXPECT_GE(value, 0);
}
}
virtual void OnClose(AudioInputStream* stream) OVERRIDE {}
virtual void OnError(AudioInputStream* stream) OVERRIDE {
++had_error_;
}
// Returns how many times OnData() has been called.
int callback_count() const {
return callback_count_;
}
// Returns how many times the OnError callback was called.
int had_error() const {
return had_error_;
}
private:
int callback_count_;
int had_error_;
int max_data_bytes_;
};
static bool CanRunAudioTests(AudioManager* audio_man) {
bool has_input = audio_man->HasAudioInputDevices();
if (!has_input)
LOG(WARNING) << "No input devices detected";
return has_input;
}
static AudioInputStream* CreateTestAudioInputStream(AudioManager* audio_man) {
AudioInputStream* ais = audio_man->MakeAudioInputStream(
AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
kSamplingRate, 16, kSamplesPerPacket),
AudioManagerBase::kDefaultDeviceId);
EXPECT_TRUE(NULL != ais);
return ais;
}
// Test that AudioInputStream rejects out of range parameters.
TEST(AudioInputTest, SanityOnMakeParams) {
scoped_ptr<AudioManager> audio_man(AudioManager::Create());
if (!CanRunAudioTests(audio_man.get()))
return;
AudioParameters::Format fmt = AudioParameters::AUDIO_PCM_LINEAR;
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_7_1, 8000, 16,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_MONO, 1024 * 1024, 16,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 80,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 80,
1000 * kSamplesPerPacket),
AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_UNSUPPORTED, 8000, 16,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, -8000, 16,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, -16,
kSamplesPerPacket), AudioManagerBase::kDefaultDeviceId));
EXPECT_TRUE(NULL == audio_man->MakeAudioInputStream(
AudioParameters(fmt, CHANNEL_LAYOUT_STEREO, 8000, 16, -1024),
AudioManagerBase::kDefaultDeviceId));
}
// Test create and close of an AudioInputStream without recording audio.
TEST(AudioInputTest, CreateAndClose) {
scoped_ptr<AudioManager> audio_man(AudioManager::Create());
if (!CanRunAudioTests(audio_man.get()))
return;
AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
ais->Close();
}
#if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
// This test is failing on ARM linux: http://crbug.com/238490
#define MAYBE_OpenAndClose DISABLED_OpenAndClose
#else
#define MAYBE_OpenAndClose OpenAndClose
#endif
// Test create, open and close of an AudioInputStream without recording audio.
TEST(AudioInputTest, MAYBE_OpenAndClose) {
scoped_ptr<AudioManager> audio_man(AudioManager::Create());
if (!CanRunAudioTests(audio_man.get()))
return;
AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
EXPECT_TRUE(ais->Open());
ais->Close();
}
#if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
// This test is failing on ARM linux: http://crbug.com/238490
#define MAYBE_OpenStopAndClose DISABLED_OpenStopAndClose
#else
#define MAYBE_OpenStopAndClose OpenStopAndClose
#endif
// Test create, open, stop and close of an AudioInputStream without recording.
TEST(AudioInputTest, MAYBE_OpenStopAndClose) {
scoped_ptr<AudioManager> audio_man(AudioManager::Create());
if (!CanRunAudioTests(audio_man.get()))
return;
AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
EXPECT_TRUE(ais->Open());
ais->Stop();
ais->Close();
}
#if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY)
// This test is failing on ARM linux: http://crbug.com/238490
#define MAYBE_Record DISABLED_Record
#else
#define MAYBE_Record Record
#endif
// Test a normal recording sequence using an AudioInputStream.
TEST(AudioInputTest, MAYBE_Record) {
scoped_ptr<AudioManager> audio_man(AudioManager::Create());
if (!CanRunAudioTests(audio_man.get()))
return;
base::MessageLoop message_loop(base::MessageLoop::TYPE_DEFAULT);
AudioInputStream* ais = CreateTestAudioInputStream(audio_man.get());
EXPECT_TRUE(ais->Open());
TestInputCallback test_callback(kSamplesPerPacket * 4);
ais->Start(&test_callback);
// Verify at least 500ms worth of audio was recorded, after giving sufficient
// extra time.
message_loop.PostDelayedTask(
FROM_HERE,
base::MessageLoop::QuitClosure(),
base::TimeDelta::FromMilliseconds(690));
message_loop.Run();
EXPECT_GE(test_callback.callback_count(), 1);
EXPECT_FALSE(test_callback.had_error());
ais->Stop();
ais->Close();
}
} // namespace media
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