example.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/doc/examples/class/shell/shell_example_01/example.cc
// version: $Id: example.cc,v 1.3 2000/12/28 21:31:57 duncan Exp $
//

// this is a simple utility that displays information about sof
// files. it demonstrates the basic usage of Sdb and CommandLine.
//

// isip include files
//
#include <Sof.h>
#include <CommandLine.h>
#include <Sdb.h>

// main program starts here
//
int main(int argc, const char **argv) {

  // parse the command line and connect it to an Sdb object. this
  // tells Sdb that all arguments on the command line are files for
  // Sdb to iterate through.
  //
  Sdb sdb1;
  CommandLine cmdl(sdb1);
  cmdl.parse(argc, argv);

  // loop over all files in the Sdb object. the call to gotoFirst will
  // return true if there is at least one file to "go" to, false if it
  // is an empty list. the gotoNext call will return true if the
  // current position is not the last file in the list.
  //
  for (boolean file = sdb1.gotoFirst(); file; file = sdb1.gotoNext()) {

    Sof sof1;
    Filename filename;
    
    // open file in read-only mode
    //
    sdb1.getName(filename);
    if (!sof1.open(filename, File::READ_ONLY)) {
      return Error::handle(sof1.name(), L"open",
			   Error::TEST, __FILE__, __LINE__);
    }
    
    // output information about the file to the Console
    //
    sof1.debug(L"This is the sof file ");
    Console::put(L"\n");
    
    // close the file
    //
    sof1.close();
  }
  
  // exit gracefully
  //
  Integral::exit();
}