sndoss.h

来自「Wxpython Implemented on Windows CE, Sou」· C头文件 代码 · 共 54 行

// --------------------------------------------------------------------------
// Name: sndoss.h
// Purpose:
// Date: 08/11/1999
// Author: Guilhem Lavaux <[e-mail]> (C) 1999
// CVSID: $Id: sndoss.h,v 1.5 2005/09/23 12:47:04 MR Exp $
// License:    wxWindows license
// --------------------------------------------------------------------------
#ifndef _WX_SNDOSS_H
#define _WX_SNDOSS_H

#include "wx/defs.h"
#include "wx/string.h"
#include "wx/mmedia/defs.h"
#include "wx/mmedia/sndbase.h"
#include "wx/mmedia/sndpcm.h"

//
// OSS output class
//

class WXDLLIMPEXP_MMEDIA wxSoundStreamOSS : public wxSoundStream {
 public:
  wxSoundStreamOSS(const wxString& dev_name = wxT("/dev/dsp"));
  ~wxSoundStreamOSS();

  wxSoundStream& Read(void *buffer, wxUint32 len);
  wxSoundStream& Write(const void *buffer, wxUint32 len);
  wxUint32 GetBestSize() const;

  bool SetSoundFormat(const wxSoundFormatBase& format);

  bool StartProduction(int evt);
  bool StopProduction();

  bool QueueFilled() const;

  // You should not call this.
  void WakeUpEvt(int evt);
 protected:
  // OSS device
  int m_fd;
  wxUint32 m_bufsize;
  int m_tag;
  bool m_oss_stop, m_oss_ok, m_q_filled;
  wxString m_devname;

 private:
  bool SetupFormat(wxSoundFormatPcm *pcm);
  void DetectBest(wxSoundFormatPcm *pcm);
};

#endif