1/*
2 * Copyright (C) 2015 Ericsson AB. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * 3. Neither the name of Ericsson nor the names of its contributors
15 * may be used to endorse or promote products derived from this
16 * software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#pragma once
32
33#if ENABLE(WEB_RTC)
34
35#include "MediaStreamTrack.h"
36#include "RTCRtpReceiverBackend.h"
37#include "RTCRtpSynchronizationSource.h"
38#include "ScriptWrappable.h"
39
40namespace WebCore {
41
42class PeerConnectionBackend;
43struct RTCRtpCapabilities;
44
45class RTCRtpReceiver final : public RefCounted<RTCRtpReceiver>, public ScriptWrappable {
46 WTF_MAKE_ISO_ALLOCATED(RTCRtpReceiver);
47public:
48 static Ref<RTCRtpReceiver> create(PeerConnectionBackend& connection, Ref<MediaStreamTrack>&& track, std::unique_ptr<RTCRtpReceiverBackend>&& backend)
49 {
50 return adoptRef(*new RTCRtpReceiver(connection, WTFMove(track), WTFMove(backend)));
51 }
52
53 static Optional<RTCRtpCapabilities> getCapabilities(ScriptExecutionContext&, const String& kind);
54
55 void stop();
56
57 void setBackend(std::unique_ptr<RTCRtpReceiverBackend>&& backend) { m_backend = WTFMove(backend); }
58 RTCRtpParameters getParameters() { return m_backend ? m_backend->getParameters() : RTCRtpParameters(); }
59 Vector<RTCRtpContributingSource> getContributingSources() const { return m_backend ? m_backend->getContributingSources() : Vector<RTCRtpContributingSource> { }; }
60 Vector<RTCRtpSynchronizationSource> getSynchronizationSources() const { return m_backend ? m_backend->getSynchronizationSources() : Vector<RTCRtpSynchronizationSource> { }; }
61
62 MediaStreamTrack& track() { return m_track.get(); }
63
64 RTCRtpReceiverBackend* backend() { return m_backend.get(); }
65 void getStats(Ref<DeferredPromise>&&);
66
67private:
68 RTCRtpReceiver(PeerConnectionBackend&, Ref<MediaStreamTrack>&&, std::unique_ptr<RTCRtpReceiverBackend>&&);
69
70 Ref<MediaStreamTrack> m_track;
71 std::unique_ptr<RTCRtpReceiverBackend> m_backend;
72 WeakPtr<PeerConnectionBackend> m_connection;
73};
74
75} // namespace WebCore
76
77#endif // ENABLE(WEB_RTC)
78