tdesktop/Telegram/SourceFiles/audio.h

364 lines
8.4 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop 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, either version 3 of the License, or
(at your option) any later version.
It 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.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "types.h"
void audioInit();
bool audioWorks();
void audioPlayNotify();
void audioFinish();
enum AudioPlayerState {
AudioPlayerStopped = 0x01,
AudioPlayerStoppedAtEnd = 0x02,
AudioPlayerStoppedAtError = 0x03,
AudioPlayerStoppedAtStart = 0x04,
AudioPlayerStoppedMask = 0x07,
AudioPlayerStarting = 0x08,
AudioPlayerPlaying = 0x10,
AudioPlayerFinishing = 0x18,
AudioPlayerPausing = 0x20,
AudioPlayerPaused = 0x28,
AudioPlayerPausedAtEnd = 0x30,
AudioPlayerResuming = 0x38,
};
class AudioPlayerFader;
class AudioPlayerLoaders;
class AudioPlayer : public QObject {
Q_OBJECT
public:
AudioPlayer();
void play(const AudioMsgId &audio, int64 position = 0);
void play(const SongMsgId &song, int64 position = 0);
void pauseresume(MediaOverviewType type, bool fast = false);
void seek(int64 position); // type == OverviewFiles
void stop(MediaOverviewType type);
void stopAndClear();
void currentState(AudioMsgId *audio, AudioPlayerState *state = 0, int64 *position = 0, int64 *duration = 0, int32 *frequency = 0);
void currentState(SongMsgId *song, AudioPlayerState *state = 0, int64 *position = 0, int64 *duration = 0, int32 *frequency = 0);
void clearStoppedAtStart(const AudioMsgId &audio);
void clearStoppedAtStart(const SongMsgId &song);
void resumeDevice();
~AudioPlayer();
public slots:
void onError(const AudioMsgId &audio);
void onError(const SongMsgId &song);
void onStopped(const AudioMsgId &audio);
void onStopped(const SongMsgId &song);
signals:
void updated(const AudioMsgId &audio);
void updated(const SongMsgId &song);
void stopped(const AudioMsgId &audio);
void stopped(const SongMsgId &song);
void stoppedOnError(const AudioMsgId &audio);
void stoppedOnError(const SongMsgId &song);
void loaderOnStart(const AudioMsgId &audio, qint64 position);
void loaderOnStart(const SongMsgId &song, qint64 position);
void loaderOnCancel(const AudioMsgId &audio);
void loaderOnCancel(const SongMsgId &song);
void faderOnTimer();
void suppressSong();
void unsuppressSong();
void suppressAll();
void songVolumeChanged();
private:
bool fadedStop(MediaOverviewType type, bool *fadedStart = 0);
bool updateCurrentStarted(MediaOverviewType type, int32 pos = -1);
bool checkCurrentALError(MediaOverviewType type);
struct Msg {
Msg() : position(0)
, duration(0)
, frequency(AudioVoiceMsgFrequency)
, skipStart(0)
, skipEnd(0)
, loading(false)
, started(0)
, state(AudioPlayerStopped)
, source(0)
, nextBuffer(0) {
memset(buffers, 0, sizeof(buffers));
memset(samplesCount, 0, sizeof(samplesCount));
}
void clearData();
FileLocation file;
QByteArray data;
int64 position, duration;
int32 frequency;
int64 skipStart, skipEnd;
bool loading;
int64 started;
AudioPlayerState state;
uint32 source;
int32 nextBuffer;
uint32 buffers[3];
int64 samplesCount[3];
};
struct AudioMsg : public Msg {
AudioMsg() {
}
void clear() {
audio = AudioMsgId();
Msg::clearData();
}
AudioMsgId audio;
};
struct SongMsg : public Msg {
SongMsg() {
}
void clear() {
song = SongMsgId();
Msg::clearData();
}
SongMsgId song;
};
void currentState(Msg *current, AudioPlayerState *state, int64 *position, int64 *duration, int32 *frequency);
void setStoppedState(Msg *current, AudioPlayerState state = AudioPlayerStopped);
int32 _audioCurrent;
AudioMsg _audioData[AudioVoiceMsgSimultaneously];
int32 _songCurrent;
SongMsg _songData[AudioSongSimultaneously];
QMutex _mutex;
friend class AudioPlayerFader;
friend class AudioPlayerLoaders;
QThread _faderThread, _loaderThread;
AudioPlayerFader *_fader;
AudioPlayerLoaders *_loader;
};
class AudioCaptureInner;
class AudioCapture : public QObject {
Q_OBJECT
public:
AudioCapture();
void start();
void stop(bool needResult);
bool check();
~AudioCapture();
signals:
void captureOnStart();
void captureOnStop(bool needResult);
void onDone(QByteArray data, VoiceWaveform waveform, qint32 samples);
void onUpdate(quint16 level, qint32 samples);
void onError();
private:
friend class AudioCaptureInner;
QThread _captureThread;
AudioCaptureInner *_capture;
};
AudioPlayer *audioPlayer();
AudioCapture *audioCapture();
class AudioPlayerFader : public QObject {
Q_OBJECT
public:
AudioPlayerFader(QThread *thread);
void resumeDevice();
signals:
void error(const AudioMsgId &audio);
void error(const SongMsgId &audio);
void playPositionUpdated(const AudioMsgId &audio);
void playPositionUpdated(const SongMsgId &audio);
void audioStopped(const AudioMsgId &audio);
void audioStopped(const SongMsgId &audio);
void needToPreload(const AudioMsgId &audio);
void needToPreload(const SongMsgId &audio);
void stopPauseDevice();
public slots:
void onInit();
void onTimer();
void onPauseTimer();
void onPauseTimerStop();
void onSuppressSong();
void onUnsuppressSong();
void onSuppressAll();
void onSongVolumeChanged();
private:
enum {
EmitError = 0x01,
EmitStopped = 0x02,
EmitPositionUpdated = 0x04,
EmitNeedToPreload = 0x08,
};
int32 updateOnePlayback(AudioPlayer::Msg *m, bool &hasPlaying, bool &hasFading, float64 suppressGain, bool suppressGainChanged);
void setStoppedState(AudioPlayer::Msg *m, AudioPlayerState state = AudioPlayerStopped);
QTimer _timer, _pauseTimer;
QMutex _pauseMutex;
bool _pauseFlag, _paused;
bool _suppressAll, _suppressAllAnim, _suppressSong, _suppressSongAnim, _songVolumeChanged;
anim::fvalue _suppressAllGain, _suppressSongGain;
uint64 _suppressAllStart, _suppressSongStart;
};
class AudioPlayerLoader;
class AudioPlayerLoaders : public QObject {
Q_OBJECT
public:
AudioPlayerLoaders(QThread *thread);
~AudioPlayerLoaders();
signals:
void error(const AudioMsgId &audio);
void error(const SongMsgId &song);
void needToCheck();
public slots:
void onInit();
void onStart(const AudioMsgId &audio, qint64 position);
void onStart(const SongMsgId &audio, qint64 position);
void onLoad(const AudioMsgId &audio);
void onLoad(const SongMsgId &audio);
void onCancel(const AudioMsgId &audio);
void onCancel(const SongMsgId &audio);
private:
AudioMsgId _audio;
AudioPlayerLoader *_audioLoader;
SongMsgId _song;
AudioPlayerLoader *_songLoader;
void emitError(MediaOverviewType type);
void clear(MediaOverviewType type);
void setStoppedState(AudioPlayer::Msg *m, AudioPlayerState state = AudioPlayerStopped);
AudioMsgId clearAudio();
SongMsgId clearSong();
enum SetupError {
SetupErrorAtStart = 0,
SetupErrorNotPlaying = 1,
SetupErrorLoadedFull = 2,
SetupNoErrorStarted = 3,
};
void loadData(MediaOverviewType type, const void *objId, qint64 position);
AudioPlayerLoader *setupLoader(MediaOverviewType type, const void *objId, SetupError &err, qint64 position);
AudioPlayer::Msg *checkLoader(MediaOverviewType type);
};
struct AudioCapturePrivate;
class AudioCaptureInner : public QObject {
Q_OBJECT
public:
AudioCaptureInner(QThread *thread);
~AudioCaptureInner();
signals:
void error();
void update(quint16 level, qint32 samples);
void done(QByteArray data, VoiceWaveform waveform, qint32 samples);
public slots:
void onInit();
void onStart();
void onStop(bool needResult);
void onTimeout();
private:
void writeFrame(int32 offset, int32 framesize);
AudioCapturePrivate *d;
QTimer _timer;
QByteArray _captured;
};
MTPDocumentAttribute audioReadSongAttributes(const QString &fname, const QByteArray &data, QImage &cover, QByteArray &coverBytes, QByteArray &coverFormat);
VoiceWaveform audioCountWaveform(const FileLocation &file, const QByteArray &data);