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/*
* Copyright (C) 2020 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "SpeechRecognitionRemoteRealtimeMediaSource.h"
#if ENABLE(MEDIA_STREAM)
#include "SpeechRecognitionRealtimeMediaSourceManagerMessages.h"
#include "SpeechRecognitionRemoteRealtimeMediaSourceManager.h"
#if PLATFORM(COCOA)
#include "SharedRingBufferStorage.h"
#include <WebCore/CARingBuffer.h>
#include <WebCore/WebAudioBufferList.h>
#endif
namespace WebKit {
Ref<WebCore::RealtimeMediaSource> SpeechRecognitionRemoteRealtimeMediaSource::create(SpeechRecognitionRemoteRealtimeMediaSourceManager& manager, const WebCore::CaptureDevice& captureDevice, WebCore::PageIdentifier pageIdentifier)
{
return adoptRef(*new SpeechRecognitionRemoteRealtimeMediaSource(WebCore::RealtimeMediaSourceIdentifier::generate(), manager, captureDevice, pageIdentifier));
}
SpeechRecognitionRemoteRealtimeMediaSource::SpeechRecognitionRemoteRealtimeMediaSource(WebCore::RealtimeMediaSourceIdentifier identifier, SpeechRecognitionRemoteRealtimeMediaSourceManager& manager, const WebCore::CaptureDevice& captureDevice, WebCore::PageIdentifier pageIdentifier)
: WebCore::RealtimeMediaSource(WebCore::RealtimeMediaSource::Type::Audio, AtomString { captureDevice.label() }, String { captureDevice.persistentId() }, { }, pageIdentifier)
, m_identifier(identifier)
, m_manager(manager)
#if PLATFORM(COCOA)
, m_ringBuffer(makeUnique<WebCore::CARingBuffer>())
#endif
{
m_manager->addSource(*this, captureDevice);
}
SpeechRecognitionRemoteRealtimeMediaSource::~SpeechRecognitionRemoteRealtimeMediaSource()
{
if (m_manager)
m_manager->removeSource(*this);
}
void SpeechRecognitionRemoteRealtimeMediaSource::startProducingData()
{
if (m_manager)
m_manager->send(Messages::SpeechRecognitionRealtimeMediaSourceManager::Start { m_identifier });
}
void SpeechRecognitionRemoteRealtimeMediaSource::stopProducingData()
{
if (m_manager)
m_manager->send(Messages::SpeechRecognitionRealtimeMediaSourceManager::Stop { m_identifier });
}
#if PLATFORM(COCOA)
void SpeechRecognitionRemoteRealtimeMediaSource::setStorage(const SharedMemory::Handle& handle, const WebCore::CAAudioStreamDescription& description, uint64_t numberOfFrames)
{
if (!numberOfFrames) {
m_ringBuffer = nullptr;
m_buffer = nullptr;
return;
}
m_description = description;
m_ringBuffer = WebCore::CARingBuffer::adoptStorage(makeUniqueRef<ReadOnlySharedRingBufferStorage>(handle), description, numberOfFrames).moveToUniquePtr();
m_buffer = makeUnique<WebCore::WebAudioBufferList>(description);
}
#endif
void SpeechRecognitionRemoteRealtimeMediaSource::remoteAudioSamplesAvailable(MediaTime time, uint64_t numberOfFrames)
{
#if PLATFORM(COCOA)
if (!m_buffer) {
LOG_ERROR("Buffer for remote source is null");
captureFailed();
return;
}
m_buffer->setSampleCount(numberOfFrames);
m_ringBuffer->fetch(m_buffer->list(), numberOfFrames, time.timeValue());
audioSamplesAvailable(time, *m_buffer, m_description, numberOfFrames);
#else
UNUSED_PARAM(time);
UNUSED_PARAM(numberOfFrames);
#endif
}
void SpeechRecognitionRemoteRealtimeMediaSource::remoteCaptureFailed()
{
captureFailed();
}
void SpeechRecognitionRemoteRealtimeMediaSource::remoteSourceStopped()
{
stop();
}
} // namespace WebKit
#endif
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