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/***************************************************************************
enginerecord.h - description
-------------------
copyright : (C) 2007 by John Sully
email :
***************************************************************************/
#pragma once
#include <QDataStream>
#include <QFile>
#include "audio/types.h"
#include "encoder/encoder.h"
#include "encoder/encodercallback.h"
#include "engine/sidechain/sidechainworker.h"
#include "preferences/usersettings.h"
#include "track/track_decl.h"
class ConfigKey;
class ControlProxy;
class EngineRecord : public QObject, public EncoderCallback, public SideChainWorker {
Q_OBJECT
public:
EngineRecord(UserSettingsPointer pConfig);
~EngineRecord() override;
void process(const CSAMPLE* pBuffer, const int iBufferSize) override;
void shutdown() override {}
// writes compressed audio to file
void write(const unsigned char *header, const unsigned char *body, int headerLen, int bodyLen) override;
// gets stream position
int tell() override;
// sets stream position
void seek(int pos) override;
// gets stream length
int filelen() override;
// creates or opens an audio file
bool openFile();
// closes the audio file
void closeFile();
void updateFromPreferences();
bool fileOpen();
bool openCueFile();
void closeCueFile();
signals:
// emitted to notify RecordingManager
void bytesRecorded(int bytes);
// Emitted when recording state changes. 'recording' represents whether
// recording is active and 'error' is true if an error occurred. Currently
// only one error can occur: the specified file was unable to be opened for
// writing.
void isRecording(bool recording, bool error);
void durationRecorded(quint64 durationInt);
private:
int getActiveTracks();
// Check if the metadata has changed since the previous check. We also check
// when was the last check performed to avoid using too much CPU and as well
// to avoid changing the metadata during scratches.
bool metaDataHasChanged();
void writeCueLine();
UserSettingsPointer m_pConfig;
EncoderPointer m_pEncoder;
QString m_encoding;
QString m_fileName;
QString m_baTitle;
QString m_baAuthor;
QString m_baAlbum;
QFile m_file;
QFile m_cueFile;
QDataStream m_dataStream;
ControlProxy* m_pRecReady;
ControlProxy* m_pSamplerate;
quint64 m_frames;
mixxx::audio::SampleRate m_sampleRate;
quint64 m_recordedDuration;
QString getRecordedDurationStr();
int m_iMetaDataLife;
TrackPointer m_pCurrentTrack;
QString m_cueFileName;
quint64 m_cueTrack;
bool m_bCueIsEnabled;
};
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