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