utils/wxMMedia2/lib/vidwin.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 // Name:       vidwin.h
   3 // Purpose:    wxMMedia
   4 // Author:     Guilhem Lavaux
   5 // Created:    February 1998
   6 // Updated:
   7 // Copyright:  (C) 1998, 1999, 2000 Guilhem Lavaux
   8 // License:    wxWindows license
   9 ////////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "vidwin.h"
  13 #endif
  14
  15 #include "wx/wxprec.h"
  16
  17 #ifndef WX_PRECOMP
  18 #include "wx/wx.h"
  19 #endif
  20
  21 #include "wx/stream.h"
  22 #include "wx/wfstream.h"
  23
  24 #define WXMMEDIA_INTERNAL
  25 #include <windows.h>
  26 #include <mmsystem.h>
  27 #include <digitalv.h>
  28 #include "vidwin.h"
  29
  30 #ifdef __BORLANDC__
  31 #pragma hdrstop
  32 #endif
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxVideoWindows, wxVideoBaseDriver)
  35
  36 wxVideoWindows::wxVideoWindows()
  37 {
  38 }
  39
  40 wxVideoWindows::wxVideoWindows(wxInputStream& str)
  41   : wxVideoBaseDriver(str)
  42 {
  43     m_internal    = new wxVIDWinternal;
  44     m_remove_file = TRUE;
  45     m_filename    = wxGetTempFileName("wxvid");
  46     m_paused      = FALSE;
  47     m_stopped     = TRUE;
  48
  49     wxFileOutputStream temp_file(m_filename);
  50     temp_file << str;
  51
  52     OpenFile();
  53 }
  54
  55 wxVideoWindows::wxVideoWindows(const wxString& filename)
  56   : wxVideoBaseDriver(filename)
  57 {
  58     m_internal    = new wxVIDWinternal;
  59     m_remove_file = FALSE;
  60     m_filename    = filename;
  61     m_paused      = FALSE;
  62     m_stopped     = TRUE;
  63     OpenFile();
  64 }
  65
  66 wxVideoWindows::~wxVideoWindows(void)
  67 {
  68     mciSendCommand(m_internal->m_dev_id, MCI_CLOSE, 0, 0);
  69
  70     if (m_internal)
  71         delete m_internal;
  72 }
  73
  74 void wxVideoWindows::OpenFile()
  75 {
  76     MCI_DGV_OPEN_PARMS open_struct;
  77     DWORD ret;
  78
  79     open_struct.lpstrDeviceType = "avivideo";
  80     open_struct.lpstrElementName = (LPSTR)(m_filename.mb_str());
  81     open_struct.hWndParent = 0;
  82
  83     ret = mciSendCommand(0, MCI_OPEN,
  84                          MCI_OPEN_ELEMENT|MCI_DGV_OPEN_PARENT|MCI_OPEN_TYPE|MCI_DGV_OPEN_32BIT,
  85                          (DWORD)(LPVOID)&open_struct);
  86     m_internal->m_dev_id = open_struct.wDeviceID;
  87 }
  88
  89 bool wxVideoWindows::Pause()
  90 {
  91     if (m_paused || m_stopped)
  92         return TRUE;
  93     m_paused = TRUE;
  94     return (mciSendCommand(m_internal->m_dev_id, MCI_PAUSE, 0, 0) == 0);
  95 }
  96
  97 bool wxVideoWindows::Resume()
  98 {
  99     if (!m_paused || m_stopped)
 100         return TRUE;
 101     m_paused = FALSE;
 102     return (mciSendCommand(m_internal->m_dev_id, MCI_RESUME, 0, 0) == 0);
 103 }
 104
 105 bool wxVideoWindows::IsPaused() const
 106 {
 107     return m_paused;
 108 }
 109
 110 bool wxVideoWindows::IsStopped() const
 111 {
 112     return m_stopped;
 113 }
 114
 115 bool wxVideoWindows::GetSize(wxSize& size) const
 116 {
 117     // Two random numbers.
 118     size.SetWidth(200);
 119     size.SetHeight(200);
 120     return TRUE;
 121 }
 122
 123 bool wxVideoWindows::SetSize(wxSize size)
 124 {
 125     return TRUE;
 126 }
 127
 128 bool wxVideoWindows::IsCapable(wxVideoType v_type)
 129 {
 130     return (v_type == wxVIDEO_MSAVI);
 131 }
 132
 133 bool wxVideoWindows::AttachOutput(wxWindow& output)
 134 {
 135     MCI_DGV_WINDOW_PARMS win_struct;
 136
 137     if (!wxVideoBaseDriver::AttachOutput(output))
 138         return FALSE;
 139
 140     win_struct.hWnd = (HWND)output.GetHWND();
 141     mciSendCommand(m_internal->m_dev_id, MCI_WINDOW,
 142                    MCI_DGV_WINDOW_HWND, (DWORD)(LPVOID)&win_struct);
 143     return TRUE;
 144 }
 145
 146 void wxVideoWindows::DetachOutput()
 147 {
 148     MCI_DGV_WINDOW_PARMS win_struct;
 149
 150     wxVideoBaseDriver::DetachOutput();
 151
 152     win_struct.hWnd = 0;
 153     mciSendCommand(m_internal->m_dev_id, MCI_WINDOW,
 154                    MCI_DGV_WINDOW_HWND, (DWORD)(LPVOID)&win_struct);
 155 }
 156
 157 bool wxVideoWindows::Play()
 158 {
 159     if (!m_stopped)
 160         return FALSE;
 161     m_stopped = FALSE;
 162     return (mciSendCommand(m_internal->m_dev_id, MCI_PLAY, 0, NULL) == 0);
 163 }
 164
 165 bool wxVideoWindows::Stop()
 166 {
 167     MCI_SEEK_PARMS seekStruct;
 168
 169     if (m_stopped)
 170         return FALSE;
 171     m_stopped = TRUE;
 172     if (::mciSendCommand(m_internal->m_dev_id, MCI_STOP, 0, NULL) != 0)
 173       return FALSE;
 174
 175     seekStruct.dwCallback = 0;
 176     seekStruct.dwTo = 0;
 177     return (::mciSendCommand(m_internal->m_dev_id, MCI_SEEK, 0, (DWORD)(LPVOID)&seekStruct) == 0);
 178 }
 179
 180
 181 // TODO TODO
 182
 183 wxString wxVideoWindows::GetMovieCodec() const
 184 {
 185     return wxT("No info");
 186 }
 187
 188 wxString wxVideoWindows::GetAudioCodec() const
 189 {
 190     return wxT("No info");
 191 }
 192
 193 wxUint32 wxVideoWindows::GetSampleRate() const
 194 {
 195     return 22500;
 196 }
 197
 198 wxUint8 wxVideoWindows::GetChannels() const
 199 {
 200     return 1;
 201 }
 202
 203 wxUint8 wxVideoWindows::GetBPS() const
 204 {
 205     return 8;
 206 }
 207
 208 double wxVideoWindows::GetFrameRate() const
 209 {
 210     return 1.0;
 211 }
 212
 213 wxUint32 wxVideoWindows::GetNbFrames() const
 214 {
 215     return 0;
 216 }