utils/wxMMedia/sndfile.h

   1 // /////////////////////////////////////////////////////////////////////////////
   2 // Name:       sndfile.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 /* Real -*- C++ -*- */
  11 #ifndef __SND_file_H__
  12 #define __SND_file_H__
  13
  14 #ifdef __GNUG__
  15 #pragma interface
  16 #endif
  17
  18 #include "mmfile.h"
  19 #include "sndsnd.h"
  20
  21 ///
  22 class wxSndFileCodec : public wxMMediaFile, public wxSndBuffer {
  23   ///
  24   DECLARE_ABSTRACT_CLASS(wxSndFileCodec)
  25 public:
  26
  27   typedef enum {
  28     wxSFILE_STOPPED,
  29     wxSFILE_PLAYING,
  30     wxSFILE_RECORDING,
  31     wxSFILE_PREPARED_TO_PLAY,
  32     wxSFILE_PREPARED_TO_RECORD,
  33   } FileState;
  34
  35 protected:
  36   wxUint32 m_fsize, m_fpos, m_fdone;
  37   FileState m_fstate;
  38   wxMMtime m_sndtime;
  39 public:
  40
  41   ///
  42   wxSndFileCodec();
  43   ///
  44   wxSndFileCodec(wxInputStream& s, bool preload, bool seekable);
  45   ///
  46   wxSndFileCodec(wxOutputStream& s, bool seekable);
  47   ///
  48   wxSndFileCodec(const wxString& fname);
  49   ///
  50   virtual ~wxSndFileCodec();
  51
  52   ///
  53   void Play(wxSound& snd);
  54   ///
  55   void Stop(wxSound& snd);
  56   ///
  57   void Record(wxSound& snd,
  58               const wxSoundDataFormat& format, wxUint32 seconds);
  59
  60   ///
  61   void OnNeedOutputData(char *data, wxUint32& size);
  62   ///
  63   void OnBufferInFinished(char *iobuf, wxUint32& size);
  64
  65   ///
  66   virtual bool OnNeedData(char *buf, wxUint32 size) = 0;
  67   ///
  68   virtual bool OnWriteData(char *buf, wxUint32 size) = 0;
  69   ///
  70   virtual wxUint32 PrepareToPlay() = 0;
  71   ///
  72   virtual bool PrepareToRecord(wxUint32 file_size) = 0;
  73   ///
  74   virtual bool TranslateBuffer(wxSndBuffer& buf);
  75   ///
  76   virtual bool RestartBuffer(wxSndMode mode);
  77   ///
  78   virtual wxUint32 GetSize() const;
  79   ///
  80   virtual wxUint32 Available() const;
  81   ///
  82   virtual wxMMtime GetLength();
  83
  84   ///
  85   wxMMtime GetPosition();
  86
  87   ///
  88   virtual bool StartPlay();
  89   ///
  90   virtual void StopPlay();
  91 };
  92
  93 #endif