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