1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Copyright (C) 2011 Ericsson AB. All rights reserved.
* Copyright (C) 2013 Google 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.
* 3. Neither the name of Ericsson nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_COMPONENT_IMPL_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_COMPONENT_IMPL_H_
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/synchronization/lock.h"
#include "third_party/blink/public/platform/modules/mediastream/web_media_stream_track.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/prefinalizer.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_component.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_source.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_track_platform.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class WebLocalFrame;
class PLATFORM_EXPORT MediaStreamComponentImpl final
: public GarbageCollected<MediaStreamComponentImpl>,
public MediaStreamComponent {
USING_PRE_FINALIZER(MediaStreamComponentImpl, Dispose);
private:
static int GenerateUniqueId();
public:
MediaStreamComponentImpl(const String& id,
MediaStreamSource*,
std::unique_ptr<MediaStreamTrackPlatform>);
MediaStreamComponentImpl(MediaStreamSource*,
std::unique_ptr<MediaStreamTrackPlatform>);
MediaStreamComponentImpl* Clone() const override;
// |m_trackData| may hold pointers to GC objects indirectly, and it may touch
// eagerly finalized objects in destruction.
// So this class runs pre-finalizer to finalize |m_trackData| promptly.
void Dispose();
MediaStreamSource* Source() const override { return source_.Get(); }
String Id() const override { return id_; }
int UniqueId() const override { return unique_id_; }
MediaStreamSource::StreamType GetSourceType() const override {
return Source()->GetType();
}
const String& GetSourceName() const override { return Source()->GetName(); }
MediaStreamSource::ReadyState GetReadyState() const override {
return Source()->GetReadyState();
}
bool Remote() const override { return Source()->Remote(); }
bool Enabled() const override { return enabled_; }
void SetEnabled(bool enabled) override;
WebMediaStreamTrack::ContentHintType ContentHint() override {
return content_hint_;
}
void SetContentHint(WebMediaStreamTrack::ContentHintType) override;
MediaStreamTrackPlatform* GetPlatformTrack() const override {
return platform_track_.get();
}
void GetSettings(MediaStreamTrackPlatform::Settings&) override;
MediaStreamTrackPlatform::CaptureHandle GetCaptureHandle() override;
WebLocalFrame* CreationFrame() override {
return creation_frame_getter_ ? creation_frame_getter_.Run() : nullptr;
}
void SetCreationFrameGetter(base::RepeatingCallback<WebLocalFrame*()>
creation_frame_getter) override {
creation_frame_getter_ = std::move(creation_frame_getter);
}
void AddSourceObserver(MediaStreamSource::Observer* observer) override;
void AddSink(WebMediaStreamAudioSink* sink) override;
void AddSink(WebMediaStreamSink* sink,
const VideoCaptureDeliverFrameCB& callback,
MediaStreamVideoSink::IsSecure is_secure,
MediaStreamVideoSink::UsesAlpha uses_alpha) override;
String ToString() const override;
void Trace(Visitor*) const override;
private:
Member<MediaStreamSource> source_;
const String id_;
const int unique_id_;
bool enabled_ = true;
WebMediaStreamTrack::ContentHintType content_hint_ =
WebMediaStreamTrack::ContentHintType::kNone;
std::unique_ptr<MediaStreamTrackPlatform> platform_track_;
// Getter returning the frame where the referenced platform track was created,
// if it's still alive.
// Stored as a callback in which code in modules/ can bind a weak pointer to
// the GCed core class LocalFrame, as this platform/ class can't depend on
// core/.
base::RepeatingCallback<WebLocalFrame*()> creation_frame_getter_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MEDIASTREAM_MEDIA_STREAM_COMPONENT_IMPL_H_
|
