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//=========================================================
// MusE
// Linux Music Editor
// $Id: wave.h,v 1.5.2.7 2009/12/20 05:00:35 terminator356 Exp $
//
// (C) Copyright 1999/2004 Werner Schweer (ws@seh.de)
//=========================================================
#ifndef __WAVE_H__
#define __WAVE_H__
#include <qstring.h>
#include <list>
#include <qfileinfo.h>
#include <sndfile.h>
class Xml;
//---------------------------------------------------------
// SampleV
// peak file value
//---------------------------------------------------------
struct SampleV {
unsigned char peak;
unsigned char rms;
};
//---------------------------------------------------------
// SndFileList
//---------------------------------------------------------
class SndFile;
class SndFileList : public std::list<SndFile*> {
public:
SndFile* search(const QString& name);
};
typedef SndFileList::iterator iSndFile;
typedef SndFileList::const_iterator ciSndFile;
//---------------------------------------------------------
// SndFile
//---------------------------------------------------------
class SndFile {
//static SndFileList _sndFiles;
QFileInfo* finfo;
SNDFILE* sf;
SNDFILE* sfUI;
SF_INFO sfinfo;
SampleV** cache;
int csize; //!< frames in cache
void writeCache(const QString& path);
bool openFlag;
bool writeFlag;
size_t readInternal(int srcChannels, float** dst, size_t n, bool overwrite, float *buffer);
protected:
int refCount;
public:
SndFile(const QString& name);
~SndFile();
int getRefCount() { return refCount; }
static SndFileList sndFiles;
static void applyUndoFile(const QString& original, const QString& tmpfile, unsigned sx, unsigned ex);
void readCache(const QString& path, bool progress);
bool openRead(); //!< returns true on error
bool openWrite(); //!< returns true on error
void close();
void remove();
bool isOpen() const { return openFlag; }
bool isWritable() const { return writeFlag; }
void update();
QString basename() const; //!< filename without extension
QString dirPath() const; //!< path
QString path() const; //!< path with filename
QString name() const; //!< filename
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, bool overwrite = true);
size_t readWithHeap(int channel, float**, size_t, bool overwrite = true);
size_t readDirect(float* buf, size_t n) { return sf_readf_float(sf, buf, n); }
size_t write(int channel, float**, size_t);
off_t seek(off_t frames, int whence);
void read(SampleV* s, int mag, unsigned pos, bool overwrite = true);
QString strerror() const;
static SndFile* search(const QString& name);
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(); }
QString basename() const { return sf->basename(); }
QString dirPath() const { return sf->dirPath(); }
QString path() const { return sf->path(); }
QString name() const { return sf->name(); }
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 readWithHeap(int channel, float** f, size_t n, bool overwrite = true) {
return sf->readWithHeap(channel, f, n, overwrite);
}
size_t read(int channel, float** f, size_t n, bool overwrite = true) {
return sf->read(channel, f, n, overwrite);
}
size_t readDirect(float* f, size_t n) { return sf->readDirect(f, n); }
size_t write(int channel, float** f, size_t n) {
return sf->write(channel, f, n);
}
off_t seek(off_t frames, int whence) {
return sf->seek(frames, whence);
}
void read(SampleV* s, int mag, unsigned pos, bool overwrite = true) {
sf->read(s, mag, pos, overwrite);
}
QString strerror() const { return sf->strerror(); }
};
#if 0
class Clip;
//---------------------------------------------------------
// ClipBase
//---------------------------------------------------------
class ClipBase {
protected:
QString _name;
SndFileR f;
int _spos; // start sample position in WaveFile
int len; // len of clip
int lrefs; // logical references
bool deleted;
int refCount;
public:
ClipBase(const SndFileR& f, int start, int len);
~ClipBase();
const QString& name() const { return _name; }
void setName(const QString& s) { _name = s; }
int spos() const { return _spos; }
void setSpos(int s) { _spos = s; }
SndFileR file1() const { return f; }
void read(unsigned, float**, int, unsigned);
void write(int, Xml&) const;
int samples() const { return len; }
void setSamples(int s) { len = s; }
int getRefCount() const { return refCount; }
int references() const { return lrefs; }
void incRefs() { ++lrefs; }
void decRefs() { --lrefs; }
friend class WaveEvent;
};
//---------------------------------------------------------
// Clip
//---------------------------------------------------------
class Clip {
ClipBase* clip;
public:
Clip();
Clip(ClipBase* clip);
Clip(const SndFileR& f, int start, int len);
Clip(const Clip&);
Clip& operator=(const Clip&);
bool operator==(const Clip& c) const { return clip == c.clip; }
bool operator==(ClipBase* c) const { return clip == c; }
~Clip();
// ClipBase* clipBase() const { return clip; }
bool isNull() const { return clip == 0; }
int getRefCount() const { return clip->getRefCount(); }
const QString& name() const { return clip->name(); }
void setName(const QString& s) { clip->setName(s); }
int spos() const { return clip->spos(); }
void setSpos(int s) { clip->setSpos(s); }
SndFileR file1() const { return clip->file1(); }
void read(unsigned off, float** f, int ch, unsigned nn) {
clip->read(off, f, ch, nn);
}
int samples() const { return clip->samples(); }
void setSamples(int s) { clip->setSamples(s); }
int references() const { return clip->references(); }
void incRefs() { clip->incRefs(); }
void decRefs() { clip->decRefs(); }
};
//---------------------------------------------------------
// ClipList
//---------------------------------------------------------
class ClipList : public std::list<ClipBase*> {
public:
int idx(const Clip&) const;
Clip search(const QString&) const;
void write(int, Xml&) const;
void add(ClipBase* clip) { push_back(clip); }
void remove(ClipBase*);
};
typedef ClipList::iterator iClip;
typedef ClipList::const_iterator ciClip;
extern ClipBase* readClip(Xml& xml);
#endif
extern SndFile* getWave(const QString& name, bool readOnlyFlag);
#endif
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