55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
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// --------------------------------------------------------------------------
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// Name: sndcpcm.h
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// Purpose:
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// Date: 08/11/1999
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// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
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// CVSID: $Id$
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// --------------------------------------------------------------------------
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#ifndef _WX_SNDCPCM_H
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#define _WX_SNDCPCM_H
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#ifdef __GNUG__
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#pragma interface "sndcpcm.h"
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#endif
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#include "wx/defs.h"
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#include "wx/mmedia/sndbase.h"
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#include "wx/mmedia/sndcodec.h"
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//
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// PCM converter class
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//
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class wxSoundStreamPcm: public wxSoundStreamCodec {
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public:
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typedef void (*ConverterType)(const void *buf_in, void *buf_out,
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wxUint32 len);
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wxSoundStreamPcm(wxSoundStream& sndio);
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~wxSoundStreamPcm();
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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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wxUint32 GetReadSize(wxUint32 len) const;
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wxUint32 GetWriteSize(wxUint32 len) const;
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protected:
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ConverterType m_function_out, m_function_in;
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// Static temporary buffer
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char *m_prebuffer;
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wxUint32 m_prebuffer_size;
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// Estimated best size to fit into the static buffer
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wxUint32 m_best_size;
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// Multiplier for IO buffer size
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float m_multiplier_in, m_multiplier_out;
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};
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#endif
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