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// Copyright 2005-2016 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MUMBLE_AUDIOOUTPUT_H_
#define MUMBLE_MUMBLE_AUDIOOUTPUT_H_
#include <QtCore/QObject>
#include <QtCore/QThread>
#include <QtCore/QSharedPointer>
// AudioOutput depends on User being valid. This means it's important
// to removeBuffer from here BEFORE MainWindow gets any UserLeft
// messages. Any decendant user should feel free to remove unused
// AudioOutputUser objects; it's better to recreate them than
// having them use resources while unused.
#ifndef SPEAKER_FRONT_LEFT
#define SPEAKER_FRONT_LEFT 0x1
#define SPEAKER_FRONT_RIGHT 0x2
#define SPEAKER_FRONT_CENTER 0x4
#define SPEAKER_LOW_FREQUENCY 0x8
#define SPEAKER_BACK_LEFT 0x10
#define SPEAKER_BACK_RIGHT 0x20
#define SPEAKER_FRONT_LEFT_OF_CENTER 0x40
#define SPEAKER_FRONT_RIGHT_OF_CENTER 0x80
#define SPEAKER_BACK_CENTER 0x100
#define SPEAKER_SIDE_LEFT 0x200
#define SPEAKER_SIDE_RIGHT 0x400
#define SPEAKER_TOP_CENTER 0x800
#define SPEAKER_TOP_FRONT_LEFT 0x1000
#define SPEAKER_TOP_FRONT_CENTER 0x2000
#define SPEAKER_TOP_FRONT_RIGHT 0x4000
#define SPEAKER_TOP_BACK_LEFT 0x8000
#define SPEAKER_TOP_BACK_CENTER 0x10000
#define SPEAKER_TOP_BACK_RIGHT 0x20000
#endif
#include "Audio.h"
#include "Message.h"
class AudioOutput;
class ClientUser;
class AudioOutputUser;
class AudioOutputSample;
typedef QSharedPointer<AudioOutput> AudioOutputPtr;
class AudioOutputRegistrar {
private:
Q_DISABLE_COPY(AudioOutputRegistrar)
public:
static QMap<QString, AudioOutputRegistrar *> *qmNew;
static QString current;
static AudioOutputPtr newFromChoice(QString choice = QString());
const QString name;
int priority;
AudioOutputRegistrar(const QString &n, int priority = 0);
virtual ~AudioOutputRegistrar();
virtual AudioOutput *create() = 0;
virtual const QList<audioDevice> getDeviceChoices() = 0;
virtual void setDeviceChoice(const QVariant &, Settings &) = 0;
virtual bool canMuteOthers() const;
virtual bool usesOutputDelay() const;
virtual bool canExclusive() const;
};
class AudioOutput : public QThread {
private:
Q_OBJECT
Q_DISABLE_COPY(AudioOutput)
private:
float *fSpeakers;
float *fSpeakerVolume;
bool *bSpeakerPositional;
protected:
enum { SampleShort, SampleFloat } eSampleFormat;
volatile bool bRunning;
unsigned int iFrameSize;
volatile unsigned int iMixerFreq;
unsigned int iChannels;
unsigned int iSampleSize;
QReadWriteLock qrwlOutputs;
QMultiHash<const ClientUser *, AudioOutputUser *> qmOutputs;
virtual void removeBuffer(AudioOutputUser *);
void initializeMixer(const unsigned int *chanmasks, bool forceheadphone = false);
bool mix(void *output, unsigned int nsamp);
public:
void wipe();
AudioOutput();
~AudioOutput() Q_DECL_OVERRIDE;
void addFrameToBuffer(ClientUser *, const QByteArray &, unsigned int iSeq, MessageHandler::UDPMessageType type);
void removeBuffer(const ClientUser *);
AudioOutputSample *playSample(const QString &filename, bool loop = false);
void run() Q_DECL_OVERRIDE = 0;
virtual bool isAlive() const;
const float *getSpeakerPos(unsigned int &nspeakers);
static float calcGain(float dotproduct, float distance);
unsigned int getMixerFreq() const;
};
#endif
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