utils/wxMMedia/sndwav.h

   1 // /////////////////////////////////////////////////////////////////////////////
   2 // Name:       sndwav.h
   3 // Purpose:    wxMMedia
   4 // Author:     Guilhem Lavaux
   5 // Created:    1997
   6 // Updated:    February 1998
   7 // Copyright:  (C) 1997, 1998, Guilhem Lavaux
   8 // License:    wxWindows license
   9 // /////////////////////////////////////////////////////////////////////////////
  10 /* Real -*- C++ -*- */
  11 #ifndef __SND_wav_H__
  12 #define __SND_wav_H__
  13 #ifdef __GNUG__
  14 #pragma interface
  15 #endif
  16
  17 #include "mmriff.h"
  18 #include "sndfile.h"
  19
  20 ///
  21 class wxSndWavCodec : public wxSndFileCodec {
  22   ///
  23   DECLARE_DYNAMIC_CLASS(wxSndWavCodec)
  24 public:
  25   ///
  26   wxSndWavCodec();
  27   ///
  28   wxSndWavCodec(wxInputStream& s, bool preload = FALSE, bool seekable = TRUE);
  29   ///
  30   wxSndWavCodec(wxOutputStream& s, bool seekable = TRUE);
  31   ///
  32   wxSndWavCodec(const wxString& fname);
  33   ///
  34   virtual ~wxSndWavCodec();
  35
  36   virtual bool OnNeedData(char *buf, wxUint32 size);
  37   virtual bool OnWriteData(char *buf, wxUint32 size);
  38
  39   virtual wxUint32 PrepareToPlay();
  40   virtual bool PrepareToRecord(wxUint32 file_size);
  41
  42   virtual void SetFile(wxInputStream& s, bool preload = FALSE,
  43                        bool seekable = FALSE);
  44   virtual void SetFile(wxOutputStream& s,
  45                        bool seekable = FALSE);
  46
  47 protected:
  48   wxRiffCodec riff_codec;
  49   struct {
  50     wxUint16 format;
  51     wxUint16 channels;
  52     wxUint32 sample_fq;
  53     wxUint32 byte_p_sec;
  54     wxUint16 byte_p_spl;
  55     wxUint16 bits_p_spl;
  56   } wav_hdr;
  57 };
  58
  59 #endif