1/*
2 * Copyright (C) 2017-2019 Apple Inc. 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 Google Inc. 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#include "config.h"
32#include "RealtimeIncomingVideoSource.h"
33
34#if USE(LIBWEBRTC)
35
36namespace WebCore {
37
38RealtimeIncomingVideoSource::RealtimeIncomingVideoSource(rtc::scoped_refptr<webrtc::VideoTrackInterface>&& videoTrack, String&& videoTrackId)
39 : RealtimeMediaSource(Type::Video, "remote video"_s, WTFMove(videoTrackId))
40 , m_videoTrack(WTFMove(videoTrack))
41{
42 notifyMutedChange(!m_videoTrack);
43
44 RealtimeMediaSourceSupportedConstraints constraints;
45 constraints.setSupportsWidth(true);
46 constraints.setSupportsHeight(true);
47 m_currentSettings = RealtimeMediaSourceSettings { };
48 m_currentSettings->setSupportedConstraints(WTFMove(constraints));
49}
50
51void RealtimeIncomingVideoSource::startProducingData()
52{
53 if (m_videoTrack)
54 m_videoTrack->AddOrUpdateSink(this, rtc::VideoSinkWants());
55}
56
57void RealtimeIncomingVideoSource::setSourceTrack(rtc::scoped_refptr<webrtc::VideoTrackInterface>&& track)
58{
59 ASSERT(track);
60
61 if (m_videoTrack && isProducingData())
62 m_videoTrack->RemoveSink(this);
63 m_videoTrack = WTFMove(track);
64 notifyMutedChange(!m_videoTrack);
65 if (isProducingData())
66 m_videoTrack->AddOrUpdateSink(this, rtc::VideoSinkWants());
67}
68
69void RealtimeIncomingVideoSource::stopProducingData()
70{
71 if (m_videoTrack)
72 m_videoTrack->RemoveSink(this);
73}
74
75const RealtimeMediaSourceCapabilities& RealtimeIncomingVideoSource::capabilities()
76{
77 return RealtimeMediaSourceCapabilities::emptyCapabilities();
78}
79
80const RealtimeMediaSourceSettings& RealtimeIncomingVideoSource::settings()
81{
82 if (m_currentSettings)
83 return m_currentSettings.value();
84
85 RealtimeMediaSourceSupportedConstraints constraints;
86 constraints.setSupportsWidth(true);
87 constraints.setSupportsHeight(true);
88
89 RealtimeMediaSourceSettings settings;
90 auto& size = this->size();
91 settings.setWidth(size.width());
92 settings.setHeight(size.height());
93 settings.setSupportedConstraints(constraints);
94
95 m_currentSettings = WTFMove(settings);
96 return m_currentSettings.value();
97}
98
99void RealtimeIncomingVideoSource::settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag> settings)
100{
101 if (settings.containsAny({ RealtimeMediaSourceSettings::Flag::Width, RealtimeMediaSourceSettings::Flag::Height }))
102 m_currentSettings = WTF::nullopt;
103}
104
105} // namespace WebCore
106
107#endif // USE(LIBWEBRTC)
108