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/*
(c) Copyright 2012 - 2021 Anton Sviridenko
https://picapica.im
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef AUDIOVIDEOCALLCONTROLLER_H
#define AUDIOVIDEOCALLCONTROLLER_H
#include <QObject>
#include <QThread>
#include <QElapsedTimer>
#include "callwindow.h"
#include "audiodevice.h"
#include "videodevice.h"
#include "toneplayer/toneplayer.h"
class AudioVideoCallController : public QObject
{
Q_OBJECT
public:
explicit AudioVideoCallController(QObject *parent = nullptr);
~AudioVideoCallController();
// is call active (i.e. are voice/video packets exchanged now)
bool const isActive() {return is_active;}
void processCall();
public slots:
void start_call(QByteArray peer_id);
void call_from(QByteArray peer_id);
void call_failed(QByteArray peer_id, QString reason);
void call_accepted(QByteArray peer_id);
void call_rejected(QByteArray peer_id);
void call_hungup(QByteArray peer_id);
signals:
private:
CallWindow *callwindow;
AudioDevice *ringdevice;
AudioDevice *microphone;
AudioDevice *output;
VideoDevice *cam;
bool is_active;
QByteArray m_peer_id;
// Earpiece tones (ringback, busy, special information/unreachable),
// played through the "audio.playback_device" setting.
TonePlayer *toneplayer;
QThread toneplayer_thread;
// Incoming call bell, played through the "audio.ring_device" setting.
TonePlayer *ringtoneplayer;
QThread ringtoneplayer_thread;
// Mic capture+encode and remote-audio decode+playback, each blocking
// its own thread for the duration of the call (see AudioDevice).
QThread microphone_thread;
QThread output_thread;
// Sequence number / capture-clock timestamp stamped onto outgoing
// 0x76 audio packets (see PICA_PROTO_CALL_PACKET_HDRSIZE).
quint16 m_audioSeq;
QElapsedTimer m_callClock;
void playEarpieceTone(void (TonePlayer::*tone)());
void playRingTone();
void stopTones();
void startAudioPipeline();
void stopAudioPipeline();
private slots:
// button handlers
void initiate_call();
void accept_call();
void end_call();
void callwindow_closed(CallWindow *sender_window);
void send_audio_packet(QByteArray data);
void incoming_audio_params(QByteArray peer_id, QString codec, quint16 sample_rate);
void incoming_audio_packet(QByteArray peer_id, quint16 seq_num, quint32 timestamp, QByteArray data);
};
#endif // AUDIOVIDEOCALLCONTROLLER_H
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