// --------------------------------------------------------------------------// Name: sndg72x.h// Purpose:// Date: 08/26/1999// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999// CVSID: $Id: sndg72x.h 35650 2005-09-23 12:56:45Z MR $// License:    wxWindows license// --------------------------------------------------------------------------#ifndef _WX_SNDG72X_H#define _WX_SNDG72X_H#include "wx/defs.h"#include "wx/mmedia/defs.h"#include "wx/mmedia/sndbase.h"#include "wx/mmedia/sndcodec.h"#include "wx/mmedia/sndbase.h"typedef enum {  wxSOUND_G721,  wxSOUND_G723_24,  wxSOUND_G723_40} wxSoundG72XType;// This fixes a bug in Mingw95typedef struct g72x_state g72state;//// G72X format//class WXDLLIMPEXP_MMEDIA wxSoundFormatG72X: public wxSoundFormatBase { public:  wxSoundFormatG72X();  ~wxSoundFormatG72X();  void SetG72XType(wxSoundG72XType type);  wxSoundG72XType GetG72XType() const { return m_g72x_type; }  void SetSampleRate(wxUint32 srate);  wxUint32 GetSampleRate() const;  wxSoundFormatType GetType() const { return wxSOUND_G72X; }  wxSoundFormatBase *Clone() const;  wxUint32 GetTimeFromBytes(wxUint32 bytes) const;  wxUint32 GetBytesFromTime(wxUint32 time) const;  bool operator !=(const wxSoundFormatBase& frmt2) const; protected:  wxUint32 m_srate;  wxSoundG72XType m_g72x_type;};//// ULAW converter class//class WXDLLIMPEXP_MMEDIA wxSoundRouterStream;class WXDLLIMPEXP_MMEDIA wxSoundStreamG72X: public wxSoundStreamCodec { public:  wxSoundStreamG72X(wxSoundStream& sndio);  ~wxSoundStreamG72X();  wxSoundStream& Read(void *buffer, wxUint32 len);  wxSoundStream& Write(const void *buffer, wxUint32 len);  bool SetSoundFormat(const wxSoundFormatBase& format); protected:  wxSoundRouterStream *m_router;  wxUint8 m_n_bits, m_current_mask, m_current_b_pos, m_current_byte;  wxUint8 *m_io_buffer;  g72state *m_state;  int (*m_coder)(int code, int in_code, struct g72x_state *state);  int (*m_decoder)(int code, int out_code, struct g72x_state *state); protected:  void PutBits(wxUint8 bits);  wxUint8 GetBits();};#endif