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Audio File Information

//! Abstract class to read information of an audio file.
/*!
    \author Daniel Etzold (detzold at qtella dot net)
    \version 0.0.1
    \date 2002-03-05
*/    
class AudioFile
{
public:
  //! Constructor
  AudioFile(const std::string& filename) 
    : _filename(filename)
  {
  }

  //! Returns the filename of this audio file.
  void              getFilename(std::string& filename)
  {
    filename = _filename;
  }

  //! returns true if file is a valid audio file
  virtual bool      valid() = 0;

  //! songname
  virtual void      getTitle(std::string& title) = 0;
  //! title of album
  virtual void      getAlbum(std::string& album) = 0;
  //! artist
  virtual void      getArtist(std::string& artist) = 0;

  //! bitrate in kbit
  virtual const int getBitRate() = 0;
  //! length of audio file in seconds
  virtual const int getLength() = 0;

protected:
  std::string _filename;
};