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/*
* Copyright (C) 2017-2018 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.
*
* 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.
*/
#pragma once
#if ENABLE(WEB_RTC) && USE(LIBWEBRTC)
#include "PeerConnectionBackend.h"
#include "RealtimeMediaSource.h"
#include <wtf/TZoneMalloc.h>
namespace webrtc {
class IceCandidate;
}
namespace WebCore {
class LibWebRTCMediaEndpoint;
class LibWebRTCProvider;
class LibWebRTCRtpSenderBackend;
class LibWebRTCRtpReceiverBackend;
class LibWebRTCRtpTransceiverBackend;
class RTCRtpReceiver;
class RTCRtpReceiverBackend;
class RTCSessionDescription;
class RTCStatsReport;
class RealtimeIncomingAudioSource;
class RealtimeIncomingVideoSource;
class RealtimeMediaSource;
class RealtimeOutgoingAudioSource;
class RealtimeOutgoingVideoSource;
class LibWebRTCPeerConnectionBackend final : public PeerConnectionBackend {
WTF_MAKE_TZONE_ALLOCATED(LibWebRTCPeerConnectionBackend);
public:
LibWebRTCPeerConnectionBackend(RTCPeerConnection&, Ref<LibWebRTCMediaEndpoint>&&);
~LibWebRTCPeerConnectionBackend();
private:
void close() final;
void doCreateOffer(RTCOfferOptions&&) final;
void doCreateAnswer(RTCAnswerOptions&&) final;
void doSetLocalDescription(const RTCSessionDescription*) final;
void doSetRemoteDescription(const RTCSessionDescription&) final;
void doAddIceCandidate(RTCIceCandidate&, AddIceCandidateCallback&&) final;
void doStop() final;
std::unique_ptr<RTCDataChannelHandler> createDataChannelHandler(const String&, const RTCDataChannelInit&) final;
void restartIce() final;
bool setConfiguration(MediaEndpointConfiguration&&) final;
void gatherDecoderImplementationName(Function<void(String&&)>&&) final;
void getStats(Ref<DeferredPromise>&&) final;
void getStats(RTCRtpSender&, Ref<DeferredPromise>&&) final;
void getStats(RTCRtpReceiver&, Ref<DeferredPromise>&&) final;
std::optional<bool> canTrickleIceCandidates() const final;
void applyRotationForOutgoingVideoSources() final;
friend class LibWebRTCMediaEndpoint;
friend class LibWebRTCRtpSenderBackend;
RTCPeerConnection& connection() { return m_peerConnection; }
Ref<RTCPeerConnection> protectedConnection() { return m_peerConnection.get(); }
void getStatsSucceeded(const DeferredPromise&, Ref<RTCStatsReport>&&);
ExceptionOr<Ref<RTCRtpSender>> addTrack(MediaStreamTrack&, FixedVector<String>&&) final;
void removeTrack(RTCRtpSender&) final;
ExceptionOr<Ref<RTCRtpTransceiver>> addTransceiver(const String&, const RTCRtpTransceiverInit&, IgnoreNegotiationNeededFlag) final;
ExceptionOr<Ref<RTCRtpTransceiver>> addTransceiver(Ref<MediaStreamTrack>&&, const RTCRtpTransceiverInit&) final;
void setSenderSourceFromTrack(LibWebRTCRtpSenderBackend&, MediaStreamTrack&);
RefPtr<RTCRtpTransceiver> existingTransceiver(Function<bool(LibWebRTCRtpTransceiverBackend&)>&&);
Ref<RTCRtpTransceiver> newRemoteTransceiver(std::unique_ptr<LibWebRTCRtpTransceiverBackend>&&, RealtimeMediaSource::Type);
void collectTransceivers() final;
private:
bool isLocalDescriptionSet() const final { return m_isLocalDescriptionSet; }
void startGatheringStatLogs(Function<void(String&&)>&&) final;
void stopGatheringStatLogs() final;
void provideStatLogs(String&&);
friend class RtcEventLogOutput;
template<typename T>
ExceptionOr<Ref<RTCRtpTransceiver>> addTransceiverFromTrackOrKind(T&& trackOrKind, const RTCRtpTransceiverInit&, IgnoreNegotiationNeededFlag = IgnoreNegotiationNeededFlag::No);
Ref<RTCRtpReceiver> createReceiver(std::unique_ptr<LibWebRTCRtpReceiverBackend>&&);
void suspend() final;
void resume() final;
void disableICECandidateFiltering() final;
bool isNegotiationNeeded(uint32_t) const final;
const Ref<LibWebRTCMediaEndpoint> m_endpoint;
bool m_isLocalDescriptionSet { false };
bool m_isRemoteDescriptionSet { false };
Vector<std::unique_ptr<webrtc::IceCandidate>> m_pendingCandidates;
Vector<Ref<RTCRtpReceiver>> m_pendingReceivers;
Function<void(String&&)> m_rtcStatsLogCallback;
};
} // namespace WebCore
#endif // ENABLE(WEB_RTC) && USE(LIBWEBRTC)
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