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