?? sndg72x.h
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// --------------------------------------------------------------------------// 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
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