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Diffstat (limited to 'src/sound/WAVAudioFile.h')
-rw-r--r-- | src/sound/WAVAudioFile.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/sound/WAVAudioFile.h b/src/sound/WAVAudioFile.h new file mode 100644 index 0000000..ec57ec6 --- /dev/null +++ b/src/sound/WAVAudioFile.h @@ -0,0 +1,93 @@ +// -*- c-basic-offset: 4 -*- + +/* + Rosegarden + A sequencer and musical notation editor. + + This program is Copyright 2000-2008 + Guillaume Laurent <glaurent@telegraph-road.org>, + Chris Cannam <cannam@all-day-breakfast.com>, + Richard Bown <bownie@bownie.com> + + The moral right of the authors to claim authorship of this work + has been asserted. + + 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. +*/ + + +// Specialisation of a RIFF file - the WAV defines a format chunk +// holding audio file meta data and a data chunk with interleaved +// sample bytes. +// + +#include "RIFFAudioFile.h" + + +#ifndef _WAVAUDIOFILE_H_ +#define _WAVAUDIOFILE_H_ + +namespace Rosegarden +{ + +class WAVAudioFile : public RIFFAudioFile +{ +public: + WAVAudioFile(const unsigned int &id, + const std::string &name, + const std::string &fileName); + + WAVAudioFile(const std::string &fileName, + unsigned int channels, + unsigned int sampleRate, + unsigned int bytesPerSecond, + unsigned int bytesPerSample, + unsigned int bitsPerSample); + + ~WAVAudioFile(); + + // Override these methods for the WAV + // + virtual bool open(); + virtual bool write(); + virtual void close(); + + // Decode and de-interleave the given samples that were retrieved + // from this file or another with the same format as it. Place + // the results in the given float buffer. Return true for + // success. This function does crappy resampling if necessary. + // + virtual bool decode(const unsigned char *sourceData, + size_t sourceBytes, + size_t targetSampleRate, + size_t targetChannels, + size_t targetFrames, + std::vector<float *> &targetData, + bool addToResultBuffers = false); + + // Get all header information + // + void parseHeader(); + + // Offset to start of sample data + // + virtual std::streampos getDataOffset(); + + // Peak file name + // + virtual std::string getPeakFilename() + { return (m_fileName + std::string(".pk")); } + + +protected: + +}; + +} + + +#endif // _WAVAUDIOFILE_H_ |