| | 1 | // -------------------------------------------------------------------------- |
| | 2 | // Name: sndg72x.h |
| | 3 | // Purpose: |
| | 4 | // Date: 08/26/1999 |
| | 5 | // Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999 |
| | 6 | // CVSID: $Id$ |
| | 7 | // -------------------------------------------------------------------------- |
| | 8 | #ifndef _WX_SNDG72X_H |
| | 9 | #define _WX_SNDG72X_H |
| | 10 | |
| | 11 | #ifdef __GNUG__ |
| | 12 | #pragma interface "sndg72x.h" |
| | 13 | #endif |
| | 14 | |
| | 15 | #include "wx/defs.h" |
| | 16 | #include "wx/mmedia/sndbase.h" |
| | 17 | #include "wx/mmedia/sndcodec.h" |
| | 18 | #include "wx/mmedia/sndbase.h" |
| | 19 | |
| | 20 | typedef enum { |
| | 21 | wxSOUND_G721, |
| | 22 | wxSOUND_G723_24, |
| | 23 | wxSOUND_G723_40 |
| | 24 | } wxSoundG72XType; |
| | 25 | |
| | 26 | // This fixes a bug in Mingw95 |
| | 27 | typedef struct g72x_state g72state; |
| | 28 | |
| | 29 | // |
| | 30 | // G72X format |
| | 31 | // |
| | 32 | class WXDLLEXPORT wxSoundFormatG72X: public wxSoundFormatBase { |
| | 33 | public: |
| | 34 | wxSoundFormatG72X(); |
| | 35 | ~wxSoundFormatG72X(); |
| | 36 | |
| | 37 | void SetG72XType(wxSoundG72XType type); |
| | 38 | wxSoundG72XType GetG72XType() const { return m_g72x_type; } |
| | 39 | |
| | 40 | void SetSampleRate(wxUint32 srate); |
| | 41 | wxUint32 GetSampleRate() const; |
| | 42 | |
| | 43 | wxSoundFormatType GetType() const { return wxSOUND_G72X; } |
| | 44 | wxSoundFormatBase *Clone() const; |
| | 45 | |
| | 46 | wxUint32 GetTimeFromBytes(wxUint32 bytes) const; |
| | 47 | wxUint32 GetBytesFromTime(wxUint32 time) const; |
| | 48 | |
| | 49 | bool operator !=(const wxSoundFormatBase& frmt2) const; |
| | 50 | |
| | 51 | protected: |
| | 52 | wxUint32 m_srate; |
| | 53 | wxSoundG72XType m_g72x_type; |
| | 54 | }; |
| | 55 | |
| | 56 | // |
| | 57 | // ULAW converter class |
| | 58 | // |
| | 59 | |
| | 60 | class WXDLLEXPORT wxSoundRouterStream; |
| | 61 | class WXDLLEXPORT wxSoundStreamG72X: public wxSoundStreamCodec { |
| | 62 | public: |
| | 63 | wxSoundStreamG72X(wxSoundStream& sndio); |
| | 64 | ~wxSoundStreamG72X(); |
| | 65 | |
| | 66 | wxSoundStream& Read(void *buffer, wxUint32 len); |
| | 67 | wxSoundStream& Write(const void *buffer, wxUint32 len); |
| | 68 | |
| | 69 | bool SetSoundFormat(const wxSoundFormatBase& format); |
| | 70 | |
| | 71 | protected: |
| | 72 | wxSoundRouterStream *m_router; |
| | 73 | wxUint8 m_n_bits, m_current_mask, m_current_b_pos, m_current_byte; |
| | 74 | wxUint8 *m_io_buffer; |
| | 75 | g72state *m_state; |
| | 76 | |
| | 77 | int (*m_coder)(int code, int in_code, struct g72x_state *state); |
| | 78 | int (*m_decoder)(int code, int out_code, struct g72x_state *state); |
| | 79 | |
| | 80 | protected: |
| | 81 | void PutBits(wxUint8 bits); |
| | 82 | wxUint8 GetBits(); |
| | 83 | }; |
| | 84 | |
| | 85 | #endif |
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