GUPPIBlockFile.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2011 by Paul Demorest
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
#ifndef __GUPPIBlockFile_h
#define __GUPPIBlockFile_h
 
#include "dsp/File.h"
 
namespace dsp {
 
 
  class GUPPIBlockFile : public File
  {
  public:
          
    GUPPIBlockFile (const char* name);
          
    ~GUPPIBlockFile ();
          
    virtual bool is_valid (const char* filename) const = 0;
 
    bool get_signed() const { return signed_8bit; }
 
  protected:
 
    virtual void open_file (const char* filename) = 0;
 
    int64_t load_bytes (unsigned char *buffer, uint64_t nbytes);
 
    virtual int load_next_block () = 0;
 
    void parse_header ();
 
    char *hdr;
 
    unsigned char *dat;
 
    int hdr_keys;
 
    bool time_ordered;
 
    bool signed_8bit;
 
    uint64_t blocsize;
 
    uint64_t overlap;
 
    uint64_t current_block_byte;
 
    int64_t current_pktidx;
 
    int64_t current_nzero_byte;
 
    int packet_size;
 
  };
 
}
 
#endif // !defined(__GUPPIFile_h)