summaryrefslogtreecommitdiff
path: root/indra/llwebrtc/llwebrtc.h
blob: ed80fa5648afe0514ada06e9b8ea489349b6f504 (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
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
141
142
143
144
145
146
147
148
149
150
/**
 * @file llwebrtc.h
 * @brief WebRTC interface
 *
 * $LicenseInfo:firstyear=2023&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2023, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free tSoftware
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LLWEBRTC_H
#define LLWEBRTC_H

#include <string>
#include <vector>

#ifdef LL_MAKEDLL
#ifdef WEBRTC_WIN
#define LLSYMEXPORT __declspec(dllexport)
#elif WEBRTC_LINUX
#define LLSYMEXPORT __attribute__((visibility("default")))
#else
#define LLSYMEXPORT /**/
#endif
#else
#define LLSYMEXPORT /**/
#endif // LL_MAKEDLL

namespace llwebrtc
{

struct LLWebRTCIceCandidate
{
    std::string candidate;
    std::string sdp_mid;
    int         mline_index;
};

class LLWebRTCVoiceDevice
{
  public:
    std::string display_name;  // friendly value for the user
    std::string id;     // internal value for selection

    LLWebRTCVoiceDevice(const std::string &display_name, const std::string &id) :
        display_name(display_name),
        id(id) {};
};

typedef std::vector<LLWebRTCVoiceDevice> LLWebRTCVoiceDeviceList;

class LLWebRTCDevicesObserver
{
  public:
    virtual void OnDevicesChanged(const LLWebRTCVoiceDeviceList &render_devices, const LLWebRTCVoiceDeviceList &capture_devices) = 0;
};

class LLWebRTCDeviceInterface
{
  public:

    virtual void refreshDevices() = 0;

    virtual void setCaptureDevice(const std::string& id) = 0;
    virtual void setRenderDevice(const std::string& id) = 0;

    virtual void setDevicesObserver(LLWebRTCDevicesObserver *observer) = 0;
    virtual void unsetDevicesObserver(LLWebRTCDevicesObserver *observer) = 0;

    virtual void setTuningMode(bool enable) = 0;
    virtual float getTuningAudioLevel() = 0;

    virtual void setSpeakerVolume(float volume) = 0;  // volume between 0.0 and 1.0
    virtual void setMicrophoneVolume(float volume) = 0;  // volume between 0.0 and 1.0
    virtual void setMute(bool mute) = 0;
    virtual float getPeerAudioLevel() = 0;
};

class LLWebRTCAudioInterface
{
  public:
    virtual void setMute(bool mute) = 0;
};

class LLWebRTCDataObserver
{
public:
    virtual void OnDataReceived(const std::string& data, bool binary) = 0;
};

class LLWebRTCDataInterface
{
public:
    virtual void sendData(const std::string& data, bool binary=false) = 0;

    virtual void setDataObserver(LLWebRTCDataObserver *observer) = 0;
    virtual void unsetDataObserver(LLWebRTCDataObserver *observer) = 0;
};

class LLWebRTCSignalingObserver
{
  public: 
    enum IceGatheringState{
        ICE_GATHERING_NEW,
        ICE_GATHERING_GATHERING,
        ICE_GATHERING_COMPLETE
    };
    virtual void OnIceGatheringState(IceGatheringState state) = 0;
    virtual void OnIceCandidate(const LLWebRTCIceCandidate& candidate) = 0;
    virtual void OnOfferAvailable(const std::string& sdp) = 0;
    virtual void OnRenegotiationNeeded() = 0;
    virtual void OnAudioEstablished(LLWebRTCAudioInterface *audio_interface) = 0;
    virtual void OnDataChannelReady(LLWebRTCDataInterface *data_interface) = 0;
};

class LLWebRTCPeerConnection
{
  public:
    virtual void setSignalingObserver(LLWebRTCSignalingObserver* observer) = 0;
    virtual void unsetSignalingObserver(LLWebRTCSignalingObserver* observer) = 0;

    virtual bool initializeConnection() = 0;
    virtual void shutdownConnection() = 0;
    virtual void AnswerAvailable(const std::string &sdp) = 0;
};

LLSYMEXPORT void init();
LLSYMEXPORT void terminate();
LLSYMEXPORT LLWebRTCDeviceInterface* getDeviceInterface();
LLSYMEXPORT LLWebRTCPeerConnection* newPeerConnection();
LLSYMEXPORT void freePeerConnection(LLWebRTCPeerConnection *connection);
}

#endif // LLWEBRTC_H