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#pragma once
#include <string>
#include <vector>
#include <QObject>
#include "mtx/events/voip.hpp"
typedef struct _GList GList;
typedef struct _GstElement GstElement;
class WebRTCSession : public QObject
{
Q_OBJECT
public:
enum class State
{
DISCONNECTED,
ICEFAILED,
INITIATING,
INITIATED,
OFFERSENT,
ANSWERSENT,
CONNECTING,
CONNECTED
};
static WebRTCSession &instance()
{
static WebRTCSession instance;
return instance;
}
bool init(std::string *errorMessage = nullptr);
State state() const { return state_; }
bool createOffer();
bool acceptOffer(const std::string &sdp);
bool acceptAnswer(const std::string &sdp);
void acceptICECandidates(const std::vector<mtx::events::msg::CallCandidates::Candidate> &);
bool toggleMuteAudioSrc(bool &isMuted);
void end();
void setStunServer(const std::string &stunServer) { stunServer_ = stunServer; }
void setTurnServers(const std::vector<std::string> &uris) { turnServers_ = uris; }
std::vector<std::string> getAudioSourceNames(const std::string &defaultDevice);
void setAudioSource(int audioDeviceIndex) { audioSourceIndex_ = audioDeviceIndex; }
signals:
void offerCreated(const std::string &sdp,
const std::vector<mtx::events::msg::CallCandidates::Candidate> &);
void answerCreated(const std::string &sdp,
const std::vector<mtx::events::msg::CallCandidates::Candidate> &);
void newICECandidate(const mtx::events::msg::CallCandidates::Candidate &);
void stateChanged(WebRTCSession::State); // explicit qualifier necessary for Qt
private slots:
void setState(State state) { state_ = state; }
private:
WebRTCSession();
bool initialised_ = false;
State state_ = State::DISCONNECTED;
GstElement *pipe_ = nullptr;
GstElement *webrtc_ = nullptr;
std::string stunServer_;
std::vector<std::string> turnServers_;
GList *audioSources_ = nullptr;
int audioSourceIndex_ = -1;
bool startPipeline(int opusPayloadType);
bool createPipeline(int opusPayloadType);
void refreshDevices();
public:
WebRTCSession(WebRTCSession const &) = delete;
void operator=(WebRTCSession const &) = delete;
};
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