/[svn]/libgig/trunk/src/DLS.h
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revision 2911 by schoenebeck, Mon Dec 29 16:25:51 2014 UTC revision 2912 by schoenebeck, Tue May 17 14:30:10 2016 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file access library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2014 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2016 by Christian Schoenebeck                      *
6   *                              <cuse@users.sourceforge.net>               *   *                              <cuse@users.sourceforge.net>               *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
# Line 105  namespace DLS { Line 105  namespace DLS {
105    
106      typedef std::string String;      typedef std::string String;
107      typedef RIFF::progress_t progress_t;      typedef RIFF::progress_t progress_t;
108        typedef RIFF::file_offset_t file_offset_t;
109    
110      /** Quadtuple version number ("major.minor.release.build"). */      /** Quadtuple version number ("major.minor.release.build"). */
111      struct version_t {      struct version_t {
# Line 400  namespace DLS { Line 401  namespace DLS {
401              uint32_t      AverageBytesPerSecond; ///< The average number of bytes per second at which the waveform data should be transferred (Playback software can estimate the buffer size using this value).              uint32_t      AverageBytesPerSecond; ///< The average number of bytes per second at which the waveform data should be transferred (Playback software can estimate the buffer size using this value).
402              uint16_t      BlockAlign;            ///< The block alignment (in bytes) of the waveform data. Playback software needs to process a multiple of <i>BlockAlign</i> bytes of data at a time, so the value of <i>BlockAlign</i> can be used for buffer alignment.              uint16_t      BlockAlign;            ///< The block alignment (in bytes) of the waveform data. Playback software needs to process a multiple of <i>BlockAlign</i> bytes of data at a time, so the value of <i>BlockAlign</i> can be used for buffer alignment.
403              uint16_t      BitDepth;              ///< Size of each sample per channel (only if known sample data format is used, 0 otherwise).              uint16_t      BitDepth;              ///< Size of each sample per channel (only if known sample data format is used, 0 otherwise).
404              unsigned long SamplesTotal;          ///< Reflects total number of sample points (only if known sample data format is used, 0 otherwise), do not bother to change this value, it will not be saved.              file_offset_t SamplesTotal;          ///< Reflects total number of sample points (only if known sample data format is used, 0 otherwise), do not bother to change this value, it will not be saved.
405              uint          FrameSize;             ///< Reflects the size (in bytes) of one single sample point (only if known sample data format is used, 0 otherwise). <b>Caution:</b> with the current version of libgig you have to upate this field by yourself whenever you change one of the following fields: Channels, BitDepth ! Ignoring this might lead to undesired behavior when i.e. calling Resize(), SetPos(), Write() or Read().              uint          FrameSize;             ///< Reflects the size (in bytes) of one single sample point (only if known sample data format is used, 0 otherwise). <b>Caution:</b> with the current version of libgig you have to upate this field by yourself whenever you change one of the following fields: Channels, BitDepth ! Ignoring this might lead to undesired behavior when i.e. calling Resize(), SetPos(), Write() or Read().
406    
407              void*         LoadSampleData();              void*         LoadSampleData();
408              void          ReleaseSampleData();              void          ReleaseSampleData();
409              unsigned long GetSize() const;              file_offset_t GetSize() const;
410              void          Resize(int iNewSize);              void          Resize(int iNewSize);
411              unsigned long SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);              file_offset_t SetPos(file_offset_t SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);
412              unsigned long Read(void* pBuffer, unsigned long SampleCount);              file_offset_t Read(void* pBuffer, file_offset_t SampleCount);
413              unsigned long Write(void* pBuffer, unsigned long SampleCount);              file_offset_t Write(void* pBuffer, file_offset_t SampleCount);
414              virtual void  UpdateChunks(progress_t* pProgress);              virtual void  UpdateChunks(progress_t* pProgress);
415              virtual void  CopyAssign(const Sample* orig);              virtual void  CopyAssign(const Sample* orig);
416    
417          protected:          protected:
418              RIFF::List*   pWaveList;              RIFF::List*   pWaveList;
419              RIFF::Chunk*  pCkData;              RIFF::Chunk*  pCkData;
420              RIFF::Chunk*  pCkFormat;              RIFF::Chunk*  pCkFormat;
421              unsigned long ulWavePoolOffset;  // needed for comparison with the wave pool link table, thus the link to instruments              file_offset_t ullWavePoolOffset;  // needed for comparison with the wave pool link table, thus the link to instruments
422    
423              Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset);              Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset);
424              virtual ~Sample();              virtual ~Sample();
425              void CopyAssignCore(const Sample* orig);              void CopyAssignCore(const Sample* orig);
426              friend class File;              friend class File;
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