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Diffstat (limited to 'muse_qt4_evolution/muse/wave.h')
| -rw-r--r-- | muse_qt4_evolution/muse/wave.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/muse_qt4_evolution/muse/wave.h b/muse_qt4_evolution/muse/wave.h new file mode 100644 index 00000000..42054f87 --- /dev/null +++ b/muse_qt4_evolution/muse/wave.h @@ -0,0 +1,162 @@ +//============================================================================= +// 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 + |