utils/wxMMedia/mmfile.h

   1 // /////////////////////////////////////////////////////////////////////////////
   2 // Name:       mmfile.h
   3 // Purpose:    wxMMedia
   4 // Author:     Guilhem Lavaux
   5 // Created:    1997
   6 // Updated:    1998
   7 // Copyright:  (C) 1997, 1998, Guilhem Lavaux
   8 // License:    wxWindows license
   9 // /////////////////////////////////////////////////////////////////////////////
  10 #ifndef __MMD_file_H__
  11 #define __MMD_file_H__
  12
  13 #ifdef __GNUG__
  14 #pragma interface
  15 #endif
  16
  17 #include "wx/string.h"
  18 #include "wx/stream.h"
  19 #include "mmtype.h"
  20
  21 ///
  22 typedef enum {
  23   wxMMFILE_NOERROR,
  24   wxMMFILE_INVALID,
  25   wxMMFILE_EOF
  26 } ///
  27  wxMMFileError;
  28
  29 typedef struct {
  30   wxInt8 hours;
  31   wxUint8 minutes, seconds;
  32 } wxMMtime;
  33
  34 /// Common base class for multimedia file.
  35 class wxMMediaFile {
  36 public:
  37   wxMMediaFile();
  38   ///
  39   wxMMediaFile(wxInputStream& is, bool preload, bool seekable);
  40   ///
  41   wxMMediaFile(wxOutputStream& is, bool seekable);
  42   ///
  43   wxMMediaFile(const wxString& fname);
  44   ///
  45   virtual ~wxMMediaFile();
  46
  47   ///
  48   wxInputStream *GetIRawData();
  49   wxOutputStream *GetORawData();
  50   ///
  51   wxString GetCurrentFile();
  52
  53   ///
  54   virtual void SetFile(wxInputStream& is,
  55                        bool preload = FALSE, bool seekable = FALSE);
  56   ///
  57   virtual void SetFile(wxOutputStream& is, bool seekable = FALSE);
  58   ///
  59   void SetFile(const wxString& fname);
  60
  61   ///
  62   wxMMFileError GetFileError() const { return m_mmerror; }
  63   ///
  64   virtual wxMMtime GetLength();
  65   ///
  66   virtual wxMMtime GetPosition();
  67   ///
  68   virtual bool StartPlay() = 0;
  69   ///
  70   virtual void StopPlay() = 0;
  71 protected:
  72   ///
  73   wxMMFileError m_mmerror;
  74   ///
  75   wxInputStream *m_istream, *m_i_temp;
  76   ///
  77   wxOutputStream *m_ostream, *m_o_temp;
  78   ///
  79   wxString m_tmpfname, m_mfname;
  80   ///
  81   bool m_seekable;
  82
  83   ///
  84   void CacheIO();
  85   ///
  86   void CleanUpPrevious();
  87 };
  88
  89 #endif