73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
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// --------------------------------------------------------------------------
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// Name: sndmsad(pcm).h
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// Purpose: MS ADPCM codec
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// Date: 25/02/2000
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// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 2000
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// CVSID: $Id$
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// --------------------------------------------------------------------------
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#ifndef _WX_SNDULAW_H
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#define _WX_SNDULAW_H
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#ifdef __GNUG__
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#pragma interface "sndmsad.h"
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#endif
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#include "wx/defs.h"
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#include "wx/dynarray.h"
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#include "wx/mmedia/sndcodec.h"
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#include "wx/mmedia/sndbase.h"
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WX_DEFINE_EXPORTED_ARRAY(wxUint16, wxMSAdpcmCoeffs);
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//
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// MSADPCM format
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//
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class WXDLLEXPORT wxSoundFormatMSAdpcm: public wxSoundFormatBase {
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public:
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wxSoundFormatMSAdpcm();
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~wxSoundFormatMSAdpcm();
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void SetSampleRate(wxUint32 srate);
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wxUint32 GetSampleRate() const;
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void SetSamplesBlock(wxUint16 sampblock);
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wxUint16 GetSamplesBlock() const;
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void SetCoefs(wxMSAdpcmCoefs& coefs);
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wxMSAdpcmCoefs& GetCoefs() const;
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wxSoundFormatType GetType() const { return wxSOUND_ULAW; }
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wxSoundFormatBase *Clone() const;
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wxUint32 GetTimeFromBytes(wxUint32 bytes) const;
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wxUint32 GetBytesFromTime(wxUint32 time) const;
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bool operator !=(const wxSoundFormatBase& frmt2) const;
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protected:
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wxUint32 m_srate;
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wxMSAdpcmCoefs *m_coefs;
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};
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//
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// MS ADPCM converter class
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//
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class WXDLLEXPORT wxSoundRouterStream;
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class WXDLLEXPORT wxSoundStreamAdpcm: public wxSoundStreamCodec {
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public:
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wxSoundStreamAdpcm(wxSoundStream& sndio);
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~wxSoundStreamAdpcm();
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wxSoundStream& Read(void *buffer, wxUint32 len);
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wxSoundStream& Write(const void *buffer, wxUint32 len);
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bool SetSoundFormat(const wxSoundFormatBase& format);
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wxUint32 GetBestSize() const;
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protected:
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wxSoundRouterStream *m_router;
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};
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#endif
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