1/*
2 * Copyright (C) 2016 Ericsson AB. All rights reserved.
3 * Copyright (C) 2017 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 * 3. Neither the name of Ericsson nor the names of its contributors
16 * may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#pragma once
33
34#if ENABLE(WEB_RTC)
35
36#include "RTCIceTransport.h"
37#include "RTCRtpReceiver.h"
38#include "RTCRtpSender.h"
39#include "RTCRtpTransceiverBackend.h"
40#include "RTCRtpTransceiverDirection.h"
41#include "ScriptWrappable.h"
42#include <wtf/RefCounted.h>
43#include <wtf/RefPtr.h>
44#include <wtf/text/WTFString.h>
45
46namespace WebCore {
47
48class RTCRtpTransceiver final : public RefCounted<RTCRtpTransceiver>, public ScriptWrappable {
49 WTF_MAKE_ISO_ALLOCATED(RTCRtpTransceiver);
50public:
51 static Ref<RTCRtpTransceiver> create(Ref<RTCRtpSender>&& sender, Ref<RTCRtpReceiver>&& receiver, std::unique_ptr<RTCRtpTransceiverBackend>&& backend) { return adoptRef(*new RTCRtpTransceiver(WTFMove(sender), WTFMove(receiver), WTFMove(backend))); }
52 virtual ~RTCRtpTransceiver() = default;
53
54 bool hasSendingDirection() const;
55 void enableSendingDirection();
56 void disableSendingDirection();
57
58 RTCRtpTransceiverDirection direction() const;
59 Optional<RTCRtpTransceiverDirection> currentDirection() const;
60 void setDirection(RTCRtpTransceiverDirection);
61 String mid() const;
62
63 RTCRtpSender& sender() { return m_sender.get(); }
64 RTCRtpReceiver& receiver() { return m_receiver.get(); }
65
66 bool stopped() const;
67 void stop();
68
69 // FIXME: Temporary solution to keep track of ICE states for this transceiver. Later, each
70 // sender and receiver will have up to two DTLS transports, which in turn will have an ICE
71 // transport each.
72 RTCIceTransport& iceTransport() { return m_iceTransport.get(); }
73
74 RTCRtpTransceiverBackend* backend() { return m_backend.get(); }
75
76private:
77 RTCRtpTransceiver(Ref<RTCRtpSender>&&, Ref<RTCRtpReceiver>&&, std::unique_ptr<RTCRtpTransceiverBackend>&&);
78
79 RTCRtpTransceiverDirection m_direction;
80
81 Ref<RTCRtpSender> m_sender;
82 Ref<RTCRtpReceiver> m_receiver;
83
84 bool m_stopped { false };
85
86 Ref<RTCIceTransport> m_iceTransport;
87 std::unique_ptr<RTCRtpTransceiverBackend> m_backend;
88};
89
90class RtpTransceiverSet {
91public:
92 const Vector<RefPtr<RTCRtpTransceiver>>& list() const { return m_transceivers; }
93 void append(Ref<RTCRtpTransceiver>&&);
94
95 Vector<std::reference_wrapper<RTCRtpSender>> senders() const;
96 Vector<std::reference_wrapper<RTCRtpReceiver>> receivers() const;
97
98private:
99 Vector<RefPtr<RTCRtpTransceiver>> m_transceivers;
100};
101
102} // namespace WebCore
103
104#endif // ENABLE(WEB_RTC)
105