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//=============================================================================
// MusE
// Linux Music Editor
// $Id:$
//
// Copyright (C) 2002-2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// 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, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#ifndef __WAVE_H__
#define __WAVE_H__
#include <sndfile.h>
//---------------------------------------------------------
// SampleV
// peak file value
//---------------------------------------------------------
struct SampleV {
unsigned char peak;
unsigned char rms;
};
class SndFile;
class SndFileList : public QHash<QString, SndFile*> {
public:
SndFile* search(const QString& name) { return (*this)[name]; }
};
//---------------------------------------------------------
// SndFile
//---------------------------------------------------------
class SndFile {
static QHash<QString, SndFile*> sndFiles;
static QList<SndFile*> createdFiles;
static int recFileNumber;
QFileInfo _finfo;
SNDFILE* sfRT; // used by rt process (prefetch)
SNDFILE* sfUI; // used by ui process
SF_INFO sfinfo;
SampleV** cache;
int csize; // frames in cache
void readCache(const QString& path, bool progress);
void writeCache(const QString& path);
bool openFlag;
bool writeFlag;
protected:
int refCount;
public:
SndFile(const QString& name);
~SndFile();
static void applyUndoFile(const QString& original, const QString& tmpfile, unsigned sx, unsigned ex);
bool openRead(); // return true on error
bool openWrite(); // return true on error
void close();
void remove();
bool isOpen() const { return openFlag; }
bool isWritable() const { return writeFlag; }
void update();
QFileInfo* finfo() { return &_finfo; }
unsigned samples() const;
unsigned channels() const;
unsigned samplerate() const;
unsigned format() const;
int sampleBits() const;
void setFormat(int fmt, int ch, int rate);
size_t read(int channel, float**, size_t);
size_t write(int channel, float**, size_t);
off_t seek(off_t frames);
void read(SampleV* s, int mag, unsigned pos);
QString strerror() const;
static SndFile* createRecFile(int);
static void cleanupRecFiles(bool);
static void updateRecFiles();
static SndFile* search(const QString& name);
static SndFile* getWave(const QString& inName, bool writeFlag);
friend class SndFileR;
};
//---------------------------------------------------------
// SndFileR
// SndFile with reference count
//---------------------------------------------------------
class SndFileR {
SndFile* sf;
public:
SndFileR() { sf = 0; }
SndFileR(SndFile* _sf);
SndFileR(const SndFileR& ed);
SndFileR& operator=(const SndFileR& ed);
bool operator==(const SndFileR& c) const { return sf == c.sf; }
bool operator==(SndFile* c) const { return sf == c; }
~SndFileR();
int getRefCount() const { return sf->refCount; }
bool isNull() const { return sf == 0; }
bool openRead() { return sf->openRead(); }
bool openWrite() { return sf->openWrite(); }
void close() { sf->close(); }
void remove() { sf->remove(); }
bool isOpen() const { return sf->isOpen(); }
bool isWritable() const { return sf->isWritable(); }
void update() { sf->update(); }
QFileInfo* finfo() { return sf->finfo(); }
const QFileInfo* finfo() const { return sf->finfo(); }
unsigned samples() const { return sf->samples(); }
unsigned channels() const { return sf->channels(); }
unsigned samplerate() const { return sf->samplerate(); }
unsigned format() const { return sf->format(); }
int sampleBits() const { return sf->sampleBits(); }
void setFormat(int fmt, int ch, int rate) {
sf->setFormat(fmt, ch, rate);
}
size_t read(int channel, float** f, size_t n) {
return sf->read(channel, f, n);
}
size_t write(int channel, float** f, size_t n) {
return sf->write(channel, f, n);
}
off_t seek(off_t frames) {
return sf->seek(frames);
}
void read(SampleV* s, int mag, unsigned pos) {
sf->read(s, mag, pos);
}
QString strerror() const { return sf->strerror(); }
};
#endif
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