contrib/include/wx/mmedia/sndwav.h

   1 // --------------------------------------------------------------------------
   2 // Name: sndwav.h
   3 // Purpose:
   4 // Date: 08/11/1999
   5 // Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
   6 // CVSID: $Id$
   7 // License:    wxWindows license
   8 // --------------------------------------------------------------------------
   9 #ifndef _WX_SNDWAV_H
  10 #define _WX_SNDWAV_H
  11
  12 #ifdef __GNUG__
  13 #pragma interface "sndwav.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17 #include "wx/string.h"
  18 #include "wx/stream.h"
  19 #include "wx/datstrm.h"
  20 #include "wx/mmedia/defs.h"
  21 #include "wx/mmedia/sndbase.h"
  22 #include "wx/mmedia/sndcodec.h"
  23 #include "wx/mmedia/sndfile.h"
  24
  25 //
  26 // WAVE codec
  27 //
  28
  29 class WXDLLIMPEXP_MMEDIA wxSoundWave: public wxSoundFileStream {
  30 public:
  31     wxSoundWave(wxInputStream& stream, wxSoundStream& io_sound);
  32     wxSoundWave(wxOutputStream& stream, wxSoundStream& io_sound);
  33     ~wxSoundWave();
  34
  35     bool CanRead();
  36     wxString GetCodecName() const;
  37
  38 protected:
  39     bool PrepareToPlay();
  40     bool PrepareToRecord(wxUint32 time);
  41     bool FinishRecording();
  42     bool RepositionStream(wxUint32 position);
  43
  44     wxUint32 GetData(void *buffer, wxUint32 len);
  45     wxUint32 PutData(const void *buffer, wxUint32 len);
  46
  47     bool HandleOutputPCM(wxDataInputStream& data, wxUint32 len,
  48                          wxUint16 channels, wxUint32 sample_fq,
  49                          wxUint32 byte_p_sec, wxUint16 byte_p_spl,
  50                          wxUint16 bits_p_spl);
  51     bool HandleOutputMSADPCM(wxDataInputStream& data, wxUint32 len,
  52                              wxUint16 channels, wxUint32 sample_fq,
  53                              wxUint32 byte_p_sec, wxUint16 byte_p_spl,
  54                              wxUint16 bits_p_spl);
  55     bool HandleOutputG721(wxDataInputStream& data, wxUint32 len,
  56                           wxUint16 channels, wxUint32 sample_fq,
  57                           wxUint32 byte_p_sec, wxUint16 byte_p_spl,
  58                           wxUint16 bits_p_spl);
  59     wxSoundFormatBase *HandleInputPCM(wxDataOutputStream& data);
  60     wxSoundFormatBase *HandleInputG72X(wxDataOutputStream& data);
  61
  62 protected:
  63     off_t m_base_offset;
  64 };
  65
  66 #endif