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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This file copyright 2006 Chris Cannam.
This program 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 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#ifndef SV_WAV_FILE_WRITER_H
#define SV_WAV_FILE_WRITER_H
#include <QString>
#include "base/BaseTypes.h"
namespace breakfastquay {
class AudioWriteStream;
};
namespace sv {
class DenseTimeValueModel;
class MultiSelection;
class TempWriteFile;
class WavFileWriter
{
public:
/**
* Specify the method used to open the destination file.
*
* If WriteToTemporary, the destination will be opened as a
* temporary file which is moved to the target location when the
* WavFileWriter is closed or deleted (to avoid clobbering an
* existing file with a partially written replacement).
*
* If WriteToTarget, the target file will be opened directly
* (necessary when e.g. doing a series of incremental writes to a
* file while keeping it open for reading).
*/
enum FileWriteMode {
WriteToTemporary,
WriteToTarget
};
WavFileWriter(QString path, sv_samplerate_t sampleRate, int channels,
FileWriteMode mode);
virtual ~WavFileWriter();
bool isOK() const;
virtual QString getError() const;
QString getPath() const { return m_path; }
bool writeModel(DenseTimeValueModel *source,
MultiSelection *selection = 0);
/// Write samples from raw arrays; count is per-channel
bool writeSamples(const float *const *samples, sv_frame_t count);
/// As writeSamples, but compatible with WavFileReader api. More expensive.
bool putInterleavedFrames(const floatvec_t &frames);
bool close();
protected:
QString m_path;
sv_samplerate_t m_sampleRate;
int m_channels;
TempWriteFile *m_temp;
breakfastquay::AudioWriteStream *m_stream;
QString m_error;
QString getWriteFilename() const;
};
} // end namespace sv
#endif
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