1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
6 #define CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
8 #include "base/memory/singleton.h"
9 #include "base/observer_list.h"
10 #include "base/process/process.h"
11 #include "base/values.h"
12 #include "content/common/content_export.h"
13 #include "content/public/browser/browser_child_process_observer.h"
14 #include "content/public/browser/notification_observer.h"
15 #include "content/public/browser/notification_registrar.h"
18 class WebRTCInternalsUIObserver;
20 // This is a singleton class running in the browser UI thread.
21 // It collects peer connection infomation from the renderers,
22 // forwards the data to WebRTCInternalsUIObserver and
23 // sends data collecting commands to the renderers.
24 class CONTENT_EXPORT WebRTCInternals : public BrowserChildProcessObserver,
25 public NotificationObserver {
27 static WebRTCInternals* GetInstance();
29 // This method is called when a PeerConnection is created.
30 // |render_process_id| is the id of the render process (not OS pid), which is
31 // needed because we might not be able to get the OS process id when the
32 // render process terminates and we want to clean up.
33 // |pid| is the renderer process id, |lid| is the renderer local id used to
34 // identify a PeerConnection, |url| is the url of the tab owning the
35 // PeerConnection, |servers| is the servers configuration, |constraints| is
36 // the media constraints used to initialize the PeerConnection.
37 void OnAddPeerConnection(int render_process_id,
40 const std::string& url,
41 const std::string& servers,
42 const std::string& constraints);
44 // This method is called when PeerConnection is destroyed.
45 // |pid| is the renderer process id, |lid| is the renderer local id.
46 void OnRemovePeerConnection(base::ProcessId pid, int lid);
48 // This method is called when a PeerConnection is updated.
49 // |pid| is the renderer process id, |lid| is the renderer local id,
50 // |type| is the update type, |value| is the detail of the update.
51 void OnUpdatePeerConnection(base::ProcessId pid,
53 const std::string& type,
54 const std::string& value);
56 // This method is called when results from PeerConnectionInterface::GetStats
57 // are available. |pid| is the renderer process id, |lid| is the renderer
58 // local id, |value| is the list of stats reports.
59 void OnAddStats(base::ProcessId pid, int lid, const base::ListValue& value);
61 // Methods for adding or removing WebRTCInternalsUIObserver.
62 void AddObserver(WebRTCInternalsUIObserver *observer);
63 void RemoveObserver(WebRTCInternalsUIObserver *observer);
65 // Sends all update data to the observers.
66 void SendAllUpdates();
68 // Tells the renderer processes to start or stop recording RTP packets.
69 void StartRtpRecording();
70 void StopRtpRecording();
73 friend struct DefaultSingletonTraits<WebRTCInternals>;
76 virtual ~WebRTCInternals();
78 void SendUpdate(const std::string& command, base::Value* value);
80 // BrowserChildProcessObserver implementation.
81 virtual void BrowserChildProcessCrashed(
82 const ChildProcessData& data) OVERRIDE;
84 // NotificationObserver implementation.
85 virtual void Observe(int type,
86 const NotificationSource& source,
87 const NotificationDetails& details) OVERRIDE;
89 // Called when a renderer exits (including crashes).
90 void OnRendererExit(int render_process_id);
92 void SendRtpRecordingUpdate();
94 ObserverList<WebRTCInternalsUIObserver> observers_;
96 // |peer_connection_data_| is a list containing all the PeerConnection
98 // Each item of the list represents the data for one PeerConnection, which
99 // contains these fields:
100 // "pid" -- processId of the renderer that creates the PeerConnection.
101 // "lid" -- local Id assigned to the PeerConnection.
102 // "url" -- url of the web page that created the PeerConnection.
103 // "servers" and "constraints" -- server configuration and media constraints
104 // used to initialize the PeerConnection respectively.
105 // "log" -- a ListValue contains all the updates for the PeerConnection. Each
106 // list item is a DictionaryValue containing "type" and "value", both of which
108 base::ListValue peer_connection_data_;
110 NotificationRegistrar registrar_;
112 bool is_recording_rtp_;
115 } // namespace content
117 #endif // CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_