Mercurial > hg > svcore
view data/fileio/WavFileWriter.h @ 1682:4ca784e5033e single-point
Restore always-on export of label even if empty - backward compatibility makes testing easier
author | Chris Cannam |
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date | Wed, 03 Apr 2019 16:03:18 +0100 |
parents | 954d0cf29ca7 |
children |
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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> #ifdef Q_OS_WIN #include <windows.h> #define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1 #endif #include <sndfile.h> #include "base/BaseTypes.h" 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; SNDFILE *m_file; QString m_error; QString getWriteFilename() const; }; #endif