blob: 44b2882ea8330afea7149c8117e37a67efad27eb (
plain)
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
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_MEDIASTREAM_PLATFORM_MEDIA_STREAM_SOURCE_H_
#define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_MEDIASTREAM_PLATFORM_MEDIA_STREAM_SOURCE_H_
#include "base/callback.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"
#include "third_party/blink/public/platform/web_common.h"
#include "third_party/blink/public/platform/web_media_stream_source.h"
#include "third_party/blink/public/platform/web_private_ptr.h"
namespace blink {
class MediaStreamSource;
class WebMediaStreamSource;
// Names for media stream source capture types.
// These are values set via the "chromeMediaSource" constraint.
BLINK_PLATFORM_EXPORT extern const char kMediaStreamSourceTab[];
BLINK_PLATFORM_EXPORT extern const char
kMediaStreamSourceScreen[]; /* video only */
BLINK_PLATFORM_EXPORT extern const char kMediaStreamSourceDesktop[];
BLINK_PLATFORM_EXPORT extern const char
kMediaStreamSourceSystem[]; /* audio only */
class BLINK_PLATFORM_EXPORT WebPlatformMediaStreamSource {
public:
using SourceStoppedCallback =
base::Callback<void(const WebMediaStreamSource& source)>;
using ConstraintsCallback =
base::Callback<void(WebPlatformMediaStreamSource* source,
MediaStreamRequestResult result,
const WebString& result_name)>;
// Source constraints key for
// https://dev.w3.org/2011/webrtc/editor/getusermedia.html.
static const char kSourceId[];
WebPlatformMediaStreamSource();
virtual ~WebPlatformMediaStreamSource();
// Returns device information about a source that has been created by a
// JavaScript call to GetUserMedia, e.g., a camera or microphone.
const MediaStreamDevice& device() const { return device_; }
// Stops the source (by calling DoStopSource()) and runs FinalizeStopSource().
void StopSource();
// Sets the source's state to muted or to live.
void SetSourceMuted(bool is_muted);
// Sets device information about a source that has been created by a
// JavaScript call to GetUserMedia. F.E a camera or microphone.
void SetDevice(const MediaStreamDevice& device);
// Sets a callback that will be triggered when StopSource is called.
void SetStopCallback(const SourceStoppedCallback& stop_callback);
// Clears the previously-set SourceStoppedCallback so that it will not be run
// in the future.
void ResetSourceStoppedCallback();
// Change the source to the |new_device| by calling DoChangeSource().
void ChangeSource(const MediaStreamDevice& new_device);
WebMediaStreamSource Owner();
#if INSIDE_BLINK
void SetOwner(MediaStreamSource*);
#endif
protected:
// Called when StopSource is called. It allows derived classes to implement
// its own Stop method.
virtual void DoStopSource() = 0;
// Called when ChangeSource is called. It allows derived class to implement
// it's own ChangeSource method.
virtual void DoChangeSource(const MediaStreamDevice& new_device) = 0;
// Runs the stop callback (if set) and sets the
// WebMediaStreamSource::readyState to ended. This can be used by
// implementations to implement custom stop methods.
void FinalizeStopSource();
private:
MediaStreamDevice device_;
SourceStoppedCallback stop_callback_;
blink::WebPrivatePtr<MediaStreamSource,
kWebPrivatePtrDestructionSameThread,
WebPrivatePtrStrength::kWeak>
owner_;
DISALLOW_COPY_AND_ASSIGN(WebPlatformMediaStreamSource);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_MEDIASTREAM_PLATFORM_MEDIA_STREAM_SOURCE_H_
|
