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/*
* Copyright (C) 2015-2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "MockRealtimeAudioSource.h"
#if ENABLE(MEDIA_STREAM)
#include "AudioSession.h"
#include "CaptureDevice.h"
#include "Logging.h"
#include "MediaConstraints.h"
#include "MockRealtimeMediaSourceCenter.h"
#include "NotImplemented.h"
#include "PlatformMediaSessionManager.h"
#include "RealtimeMediaSourceSettings.h"
#include <wtf/UUID.h>
namespace WebCore {
#if !PLATFORM(MAC) && !PLATFORM(IOS_FAMILY) && !(USE(GSTREAMER) && USE(LIBWEBRTC))
CaptureSourceOrError MockRealtimeAudioSource::create(String&& deviceID, String&& name, String&& hashSalt, const MediaConstraints* constraints)
{
#ifndef NDEBUG
auto device = MockRealtimeMediaSourceCenter::mockDeviceWithPersistentID(deviceID);
ASSERT(device);
if (!device)
return { "No mock microphone device"_s };
#endif
auto source = adoptRef(*new MockRealtimeAudioSource(WTFMove(deviceID), WTFMove(name), WTFMove(hashSalt)));
if (constraints && source->applyConstraints(*constraints))
return { };
return CaptureSourceOrError(WTFMove(source));
}
#endif
MockRealtimeAudioSource::MockRealtimeAudioSource(String&& deviceID, String&& name, String&& hashSalt)
: RealtimeMediaSource(RealtimeMediaSource::Type::Audio, WTFMove(name), WTFMove(deviceID), WTFMove(hashSalt))
, m_workQueue(WorkQueue::create("MockRealtimeAudioSource Render Queue"))
, m_timer(RunLoop::current(), this, &MockRealtimeAudioSource::tick)
{
auto device = MockRealtimeMediaSourceCenter::mockDeviceWithPersistentID(persistentID());
ASSERT(device);
m_device = *device;
setSampleRate(WTF::get<MockMicrophoneProperties>(m_device.properties).defaultSampleRate);
initializeEchoCancellation(true);
}
MockRealtimeAudioSource::~MockRealtimeAudioSource()
{
#if PLATFORM(IOS_FAMILY)
RealtimeMediaSourceCenter::singleton().audioCaptureFactory().unsetActiveSource(*this);
#endif
}
const RealtimeMediaSourceSettings& MockRealtimeAudioSource::settings()
{
if (!m_currentSettings) {
RealtimeMediaSourceSettings settings;
settings.setDeviceId(hashedId());
settings.setVolume(volume());
settings.setEchoCancellation(echoCancellation());
settings.setSampleRate(sampleRate());
settings.setLabel(name());
RealtimeMediaSourceSupportedConstraints supportedConstraints;
supportedConstraints.setSupportsDeviceId(true);
supportedConstraints.setSupportsVolume(true);
supportedConstraints.setSupportsEchoCancellation(true);
supportedConstraints.setSupportsSampleRate(true);
settings.setSupportedConstraints(supportedConstraints);
m_currentSettings = WTFMove(settings);
}
return m_currentSettings.value();
}
void MockRealtimeAudioSource::setChannelCount(unsigned channelCount)
{
if (channelCount > 2)
return;
m_channelCount = channelCount;
settingsDidChange(RealtimeMediaSourceSettings::Flag::SampleRate);
}
const RealtimeMediaSourceCapabilities& MockRealtimeAudioSource::capabilities()
{
if (!m_capabilities) {
RealtimeMediaSourceCapabilities capabilities(settings().supportedConstraints());
capabilities.setDeviceId(hashedId());
capabilities.setVolume(CapabilityValueOrRange(0.0, 1.0));
capabilities.setEchoCancellation(RealtimeMediaSourceCapabilities::EchoCancellation::ReadWrite);
capabilities.setSampleRate(CapabilityValueOrRange(44100, 48000));
m_capabilities = WTFMove(capabilities);
}
return m_capabilities.value();
}
void MockRealtimeAudioSource::settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag>)
{
m_currentSettings = WTF::nullopt;
}
void MockRealtimeAudioSource::startProducingData()
{
#if PLATFORM(IOS_FAMILY)
RealtimeMediaSourceCenter::singleton().audioCaptureFactory().setActiveSource(*this);
PlatformMediaSessionManager::sharedManager().sessionCanProduceAudioChanged();
ASSERT(AudioSession::sharedSession().category() == AudioSession::PlayAndRecord);
#endif
if (!sampleRate())
setSampleRate(WTF::get<MockMicrophoneProperties>(m_device.properties).defaultSampleRate);
m_startTime = MonotonicTime::now();
m_timer.startRepeating(renderInterval());
}
void MockRealtimeAudioSource::stopProducingData()
{
m_timer.stop();
m_startTime = MonotonicTime::nan();
}
void MockRealtimeAudioSource::tick()
{
if (std::isnan(m_lastRenderTime))
m_lastRenderTime = MonotonicTime::now();
MonotonicTime now = MonotonicTime::now();
if (m_delayUntil) {
if (m_delayUntil < now)
return;
m_delayUntil = MonotonicTime();
}
Seconds delta = now - m_lastRenderTime;
m_lastRenderTime = now;
m_workQueue->dispatch([this, delta, protectedThis = makeRef(*this)] {
render(delta);
});
}
void MockRealtimeAudioSource::delaySamples(Seconds delta)
{
m_delayUntil = MonotonicTime::now() + delta;
}
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)