utils/wxMMedia2/sample/test_med.cpp

   1 // --------------------------------------------------------------------------
   2 // Name: test_med.cpp
   3 // Purpose:
   4 // Date: 08/11/1999
   5 // Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
   6 // CVSID: $Id$
   7 // --------------------------------------------------------------------------
   8 #include <wx/app.h>
   9 #include <wx/wfstream.h>
  10 #include <wx/frame.h>
  11 #include "../lib/sndoss.h"
  12 #include "../lib/sndwav.h"
  13 #include "../lib/sndaiff.h"
  14 #include "../lib/sndulaw.h"
  15
  16 wxSoundStreamOSS *oss_dev;
  17 wxInputStream *f_input;
  18 wxSoundStreamUlaw *ulaw_codec;
  19
  20 class MySoundStream: public wxSoundStream {
  21  public:
  22   wxSoundStream& Read(void *buffer, size_t len) { return *this; }
  23   wxSoundStream& Write(const void *buffer, size_t len) { return *this; }
  24
  25   bool StartProduction(int evt) { return FALSE; }
  26   bool StopProduction() { return FALSE; }
  27
  28   void SetDuplexMode(bool on) {}
  29
  30  void OnSoundEvent(int evt) {
  31    char buffer[2048];
  32
  33    f_input->Read(buffer, sizeof(buffer));
  34    ulaw_codec->Write(buffer, sizeof(buffer));
  35  }
  36 };
  37
  38 class MyApp: public wxApp {
  39  bool OnInit() {
  40    wxSoundFormatUlaw ulaw;
  41    MySoundStream strm;
  42
  43    oss_dev = new wxSoundStreamOSS();
  44    f_input = new wxFileInputStream(argv[1]);
  45
  46    if (oss_dev->GetError() != wxSOUND_NOERR) {
  47      wxPrintf("No device\n");
  48      return FALSE;
  49    }
  50
  51    ulaw.SetSampleRate(8000);
  52    ulaw_codec = new wxSoundStreamUlaw(*oss_dev);
  53    ulaw_codec->SetSoundFormat(ulaw);
  54
  55    oss_dev->SetEventHandler(&strm);
  56    oss_dev->StartProduction(wxSOUND_OUTPUT);
  57
  58    while (1) {
  59 //     wxYield();
  60      strm.OnSoundEvent(0);
  61    }
  62    return TRUE;
  63  }
  64 };
  65
  66 IMPLEMENT_APP(MyApp)