void BasePlatformInterface::ResizeVideo() { LOG(("Resizing: %d, %d, %d, %d", mDisplayX, mDisplayY, mDisplayWidth, mDisplayHeight)); // We can draw anywhere in the passed area. // Now, calculate the area to use that will maintain the desired // display-aspect-ratio. // First, we see if it'll fit if we use all available vertical space. // If it doesn't, we use all the available horizontal space. int height = mDisplayHeight; int width = mDisplayHeight * mDARNum / mDARDenom; int x, y; if (width <= mDisplayWidth) { // It fits; now offset appropriately. x = mDisplayX + (mDisplayWidth - width)/2; y = mDisplayY; } else { // it didn't fit this way, so use the other. width = mDisplayWidth; height = mDisplayWidth * mDARDenom / mDARNum; x = mDisplayX; y = mDisplayY + (mDisplayHeight - height)/2; } MoveVideoWindow(x, y, width, height); }
HRESULT BlendVideo(LPTSTR szFile1, LPTSTR szFile2) { USES_CONVERSION; WCHAR wFile1[MAX_PATH], wFile2[MAX_PATH]; HRESULT hr; // Check input string if ((szFile1 == NULL) || (szFile2 == NULL)) return E_POINTER; // Clear open dialog remnants before calling RenderFile() UpdateWindow(ghApp); // Convert filenames to wide character strings wcsncpy(wFile1, T2W(szFile1), NUMELMS(wFile1)-1); wcsncpy(wFile2, T2W(szFile2), NUMELMS(wFile2)-1); wFile1[MAX_PATH-1] = wFile2[MAX_PATH-1] = 0; // Get the interface for DirectShow's GraphBuilder JIF(CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&pGB)); if(SUCCEEDED(hr)) { // Unlike the VMR7 in Windows XP, the VMR9 is not the default renderer // (to preserve backward compatibility). In some multifile graphs, // the filter graph manager could decide to load the default Video Renderer // filter during RenderFile(), even though the VMR9 is already present // in the graph. Since the default Video Renderer has a higher merit // than the VMR9, it would be connected instead of the VMR9, leading to // the video streams being displayed in multiple separate windows. // This could be the case with AVI files created with legacy VfW codecs // or when two Color Space convertors must be used (each requiring its // own allocator). // Therefore, we render the files programmatically instead of using // the standard IGraphBuilder::RenderFile() method. if (FAILED(ConfigureMultiFileVMR9(wFile1, wFile2))) return hr; // QueryInterface for DirectShow interfaces JIF(pGB->QueryInterface(IID_IMediaControl, (void **)&pMC)); JIF(pGB->QueryInterface(IID_IMediaEventEx, (void **)&pME)); JIF(pGB->QueryInterface(IID_IMediaSeeking, (void **)&pMS)); // Is this an audio-only file (no video component)? if (CheckVideoVisibility()) { JIF(InitVideoWindow(1, 1)); } else { // This sample requires video clips to be loaded Msg(TEXT("This sample requires media with a video component. ") TEXT("Please select another file.")); return E_FAIL; } // Have the graph signal event via window callbacks JIF(pME->SetNotifyWindow((OAHWND)ghApp, WM_GRAPHNOTIFY, 0)); // Complete the window setup ShowWindow(ghApp, SW_SHOWNORMAL); UpdateWindow(ghApp); SetForegroundWindow(ghApp); SetFocus(ghApp); #ifdef REGISTER_FILTERGRAPH if (FAILED(AddGraphToRot(pGB, &g_dwGraphRegister))) { Msg(TEXT("Failed to register filter graph with ROT!")); g_dwGraphRegister = 0; } #endif // Run the graph to play the media files MoveVideoWindow(); JIF(pMC->Run()); EnableMenus(TRUE); } return hr; }
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { // Resize the video when the window changes case WM_MOVE: case WM_SIZE: if ((hWnd == ghApp) && (!g_bAudioOnly)) MoveVideoWindow(); break; // Enforce a minimum size case WM_GETMINMAXINFO: { LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam; lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH; lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT; } break; case WM_KEYDOWN: switch(toupper((int) wParam)) { // Frame stepping case VK_SPACE: case '1': StepOneFrame(); break; // Frame stepping (multiple frames) case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': StepFrames((int) wParam - '0'); break; case 'P': PauseClip(); break; case 'S': StopClip(); break; case 'M': ToggleMute(); break; case 'F': case VK_RETURN: ToggleFullScreen(); break; case 'H': InitVideoWindow(1,2); CheckSizeMenu(wParam); break; case 'N': InitVideoWindow(1,1); CheckSizeMenu(wParam); break; case 'D': InitVideoWindow(2,1); CheckSizeMenu(wParam); break; case 'T': InitVideoWindow(3,4); CheckSizeMenu(wParam); break; case VK_ESCAPE: if (g_bFullscreen) ToggleFullScreen(); else CloseClip(); break; case VK_F12: case 'Q': case 'X': CloseClip(); break; } break; case WM_COMMAND: switch(wParam) { // Menus case ID_FILE_OPENCLIP: // If we have ANY file open, close it and shut down DirectShow if (g_psCurrent != Init) CloseClip(); // Open the new clip OpenClip(); break; case ID_FILE_EXIT: CloseClip(); PostQuitMessage(0); break; case ID_FILE_PAUSE: PauseClip(); break; case ID_FILE_STOP: StopClip(); break; case ID_FILE_CLOSE: CloseClip(); break; case ID_FILE_MUTE: ToggleMute(); break; case ID_FILE_FULLSCREEN: ToggleFullScreen(); break; case ID_HELP_ABOUT: DialogBox(ghInst, MAKEINTRESOURCE(IDD_ABOUTBOX), ghApp, (DLGPROC) AboutDlgProc); break; case ID_FILE_SIZE_HALF: InitVideoWindow(1,2); CheckSizeMenu(wParam); break; case ID_FILE_SIZE_NORMAL: InitVideoWindow(1,1); CheckSizeMenu(wParam); break; case ID_FILE_SIZE_DOUBLE: InitVideoWindow(2,1); CheckSizeMenu(wParam); break; case ID_FILE_SIZE_THREEQUARTER: InitVideoWindow(3,4); CheckSizeMenu(wParam); break; case ID_SINGLE_STEP: StepOneFrame(); break; } // Menus break; case WM_GRAPHNOTIFY: HandleGraphEvent(); break; case WM_CLOSE: SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } // Window msgs handling // Pass this message to the video window for notification of system changes if (pVW) pVW->NotifyOwnerMessage((LONG_PTR) hWnd, message, wParam, lParam); return DefWindowProc(hWnd, message, wParam, lParam); }
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_PAINT: OnPaint(hWnd); break; case WM_DISPLAYCHANGE: if (pWC) pWC->DisplayModeChanged(); break; // Resize the video when the window changes case WM_MOVE: case WM_SIZE: if (hWnd == ghApp) MoveVideoWindow(); break; // Enforce a minimum size case WM_GETMINMAXINFO: { LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam; if (lpmm) { lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH; lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT; } } break; case WM_KEYDOWN: switch(toupper((int) wParam)) { case VK_ESCAPE: case VK_F12: CloseClip(); break; } break; case WM_COMMAND: switch(wParam) { // Menus case ID_FILE_OPENCLIP: // If we have ANY file open, close it and shut down DirectShow CloseClip(); OpenClip(); // Open the new clip break; case ID_FILE_INITCLIP: OpenClip(); break; case ID_FILE_EXIT: CloseClip(); PostQuitMessage(0); break; case ID_FILE_CLOSE: CloseClip(); break; case ID_DISABLE: FlipFlag(MARK_DISABLE); DisableTicker(g_dwTickerFlags); break; case ID_SLIDE: FlipFlag(MARK_SLIDE); SlideTicker(g_dwTickerFlags); break; case ID_TICKER_STATIC_IMAGE: g_dwTickerFlags |= MARK_STATIC_IMAGE; g_dwTickerFlags &= ~(MARK_DYNAMIC_TEXT); BlendApplicationImage(ghApp); CheckMenuItem(ghMenu, ID_TICKER_STATIC_IMAGE, MF_CHECKED); CheckMenuItem(ghMenu, ID_TICKER_DYNAMIC_TEXT, MF_UNCHECKED); break; case ID_TICKER_DYNAMIC_TEXT: g_dwTickerFlags |= MARK_DYNAMIC_TEXT; g_dwTickerFlags &= ~(MARK_STATIC_IMAGE); BlendApplicationText(ghApp, g_szAppText); CheckMenuItem(ghMenu, ID_TICKER_STATIC_IMAGE, MF_UNCHECKED); CheckMenuItem(ghMenu, ID_TICKER_DYNAMIC_TEXT, MF_CHECKED); break; case ID_SET_FONT: g_hFont = UserSelectFont(); // Change the current font PostMessage(ghApp, WM_COMMAND, ID_TICKER_DYNAMIC_TEXT, 0); break; case ID_SET_TEXT: DialogBox(ghInst, MAKEINTRESOURCE(IDD_DIALOG_TEXT), ghApp, (DLGPROC) TextDlgProc); break; case ID_HELP_ABOUT: DialogBox(ghInst, MAKEINTRESOURCE(IDD_HELP_ABOUT), ghApp, (DLGPROC) AboutDlgProc); break; } // Menus break; case WM_GRAPHNOTIFY: HandleGraphEvent(); break; case WM_CLOSE: SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } // Window msgs handling return DefWindowProc(hWnd, message, wParam, lParam); }
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_PAINT: OnPaint(hWnd); break; case WM_DISPLAYCHANGE: if (pWC) pWC->DisplayModeChanged(); break; // Resize the video when the window changes case WM_MOVE: case WM_SIZE: if (hWnd == ghApp) MoveVideoWindow(); break; // Enforce a minimum size case WM_GETMINMAXINFO: { LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam; if (lpmm) { lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH; lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT; } } break; case WM_KEYDOWN: switch(toupper((int) wParam)) { case 'P': PauseClip(); break; case 'S': StopClip(); break; case 'M': ToggleMute(); break; case VK_ESCAPE: case VK_F12: case 'Q': case 'X': CloseClip(); break; } break; case WM_COMMAND: switch(wParam) { // Menus case ID_FILE_OPENCLIP: // If we have ANY file open, close it and shut down DirectShow if (g_psCurrent != Init) CloseClip(); // Open the new clip OpenClip(); break; case ID_FILE_EXIT: CloseClip(); PostQuitMessage(0); break; case ID_FILE_PAUSE: PauseClip(); break; case ID_FILE_STOP: StopClip(); break; case ID_FILE_CLOSE: CloseClip(); break; case ID_FILE_MUTE: ToggleMute(); break; case ID_FLIP: FlipFlag(MARK_FLIP); FlipWatermark(g_dwWatermarkFlags); break; case ID_MIRROR: FlipFlag(MARK_MIRROR); MirrorWatermark(g_dwWatermarkFlags); break; case ID_DISABLE: FlipFlag(MARK_DISABLE); DisableWatermark(g_dwWatermarkFlags); break; case ID_ANIMATE: FlipFlag(MARK_ANIMATE); AnimateWatermark(g_dwWatermarkFlags); break; case ID_SLIDE: FlipFlag(MARK_SLIDE); SlideWatermark(g_dwWatermarkFlags); break; case ID_STROBE: FlipFlag(MARK_STROBE); StrobeWatermark(g_dwWatermarkFlags); break; case ID_ALL_EFFECTS: SetAllEffects(); break; case ID_NO_EFFECTS: ClearAllEffects(); break; case ID_HELP_ABOUT: DialogBox(ghInst, MAKEINTRESOURCE(IDD_ABOUTBOX), ghApp, (DLGPROC) AboutDlgProc); break; } // Menus break; case WM_GRAPHNOTIFY: HandleGraphEvent(); break; case WM_CLOSE: SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } // Window msgs handling return DefWindowProc(hWnd, message, wParam, lParam); }