Merge branch 'master' of https://steffen.gulpe.de/gitea/steffen/SimpleSkyCam

videodev-vfw.cc

@@ -17,13 +17,14 @@
 
 VideoDev_VFW::VideoDev_VFW() {
 	printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
-	cap = NULL;
+	hwnd = cap = NULL;
 	camid = -1;
 	inframe_pixfmt = 0x0;
 	inframe_w = -1;
 	inframe_h = -1;
 	inframe = NULL;
 	inframe_size = 0;
+	vfw_size = 0;
 };
 
 
@@ -54,21 +55,54 @@ int VideoDev_VFW::GetDeviceList(std::list<std::string> *list) {
   return VDEV_STATUS_OK;
 }
 
-
-
 /*
  * Open Device
  * prepare the buffer
  */
 int VideoDev_VFW::Open() {
 
+  static int first = 1;
+
   printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
 
   camid = atoi (conf_device.c_str());
   printf ("%s:%d %s Opening VFW id %d\n", __FILE__, __LINE__, __FUNCTION__, camid);
 
+  // create parent window
+  //HWND main_hwnd = (HWND)GDK_WINDOW_HWND (gtk_widget_get_window (GTK_WIDGET(main_window)));
+  HINSTANCE hinst = GetModuleHandle(NULL);
+  char classNameVfW[] = "VFW-Class";
+
+  if (first) {
+    WNDCLASSEX hclass;
+    hclass.hInstance=hinst;
+    hclass.lpszClassName=classNameVfW;
+    hclass.lpfnWndProc=DefWindowProc;
+    hclass.style=CS_DBLCLKS;
+    hclass.cbSize=sizeof(WNDCLASSEX);
+    hclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
+    hclass.hIconSm=LoadIcon(NULL,IDI_APPLICATION);
+    hclass.hCursor=LoadCursor(NULL,IDC_ARROW);
+    hclass.lpszMenuName=NULL;
+    hclass.cbClsExtra=0;
+    hclass.cbWndExtra=0;
+    hclass.hbrBackground=(HBRUSH)COLOR_BACKGROUND;
+
+    if(!RegisterClassEx(&hclass)) {
+      printf ("%s:%d %s Could not register VFW class\n", __FILE__, __LINE__, __FUNCTION__);
+      return VDEV_STATUS_ERROR;
+    }
+    first = 0;
+  }
+  hwnd = CreateWindowEx(0, classNameVfW, "CameraPreview", WS_POPUPWINDOW|WS_VISIBLE, 0, 0, 3, 3, NULL, NULL, hinst, NULL);
+  if (hwnd == NULL) {
+    printf ("%s:%d %s Could not create window (%ld)\n", __FILE__, __LINE__, __FUNCTION__, GetLastError());
+    return VDEV_STATUS_ERROR;
+  }
+  ShowWindow(hwnd, SW_SHOW);
+	
   // connect to driver
-  cap = capCreateCaptureWindow("VFW", WS_CHILD|WS_VISIBLE, 0, 0, 700, 700, HWND_MESSAGE, camid);
+  cap = capCreateCaptureWindow("VFW", WS_CHILD|WS_VISIBLE, 0, 0, 1, 1, hwnd, camid);
   if(!cap) {
     printf ("%s:%d %s Could not open VFW id %d window\n", __FILE__, __LINE__, __FUNCTION__, camid);
     return VDEV_STATUS_ERROR;
@@ -78,16 +112,46 @@ int VideoDev_VFW::Open() {
     return VDEV_STATUS_ERROR;
   }
 
-  // set capture format and size
+  // let the callbacks know this class pointer
+  capSetUserData(cap, this);
+
+  CAPTUREPARMS cp;
+  if(!capCaptureGetSetup(cap, &cp, sizeof(cp))) {
+    printf ("%s:%d %s Could not get VFW setup\n", __FILE__, __LINE__, __FUNCTION__);
+    return VDEV_STATUS_ERROR;
+  }
+  cp.dwRequestMicroSecPerFrame = 33333;
+  cp.fMakeUserHitOKToCapture = 0;
+  cp.wPercentDropForError = 90;
+  cp.fYield = TRUE;
+  cp.wNumVideoRequested = 1;
+  cp.fCaptureAudio = 0;
+  cp.vKeyAbort = 0;
+  cp.fAbortLeftMouse = 0;
+  cp.fAbortRightMouse = 0;
+  cp.fLimitEnabled = 0;
+  if(!capCaptureSetSetup(cap, &cp, sizeof(cp))) {
+    printf ("%s:%d %s Could not set VFW setup\n", __FILE__, __LINE__, __FUNCTION__);
+    return VDEV_STATUS_ERROR;
+  }
+
+  capOverlay(cap, 0);
+  capPreviewRate(cap, 10); // rate in ms
+  capPreviewScale(cap, 0);
+  capPreview(cap, TRUE);
+  //capCaptureSequenceNoFile(cap);
+
+  // set video source, capture format and size
+  capDlgVideoSource(cap);
   capDlgVideoFormat(cap);
 
   // get current valid width/height
   BITMAPINFO bi;
-  int w, h, i = 0;
+  int i = 0;
   capGetVideoFormat(cap, &bi, sizeof(BITMAPINFO));
-  w = bi.bmiHeader.biWidth;
+  inframe_w = bi.bmiHeader.biWidth;
-  h = bi.bmiHeader.biHeight;
+  inframe_h = bi.bmiHeader.biHeight;
-  printf ("%s:%d %s Current capture size is %dx%d\n", __FILE__, __LINE__, __FUNCTION__, w, h);
+  printf ("%s:%d %s Current capture size is %dx%d\n", __FILE__, __LINE__, __FUNCTION__, inframe_w, inframe_h);
   conf_format = convert_from_pixelformat(bi.bmiHeader.biCompression);
   inframe_pixfmt = bi.bmiHeader.biCompression;
   printf ("%s:%d %s Current capture format is %s\n", __FILE__, __LINE__, __FUNCTION__, conf_format.c_str());
@@ -104,23 +168,28 @@ int VideoDev_VFW::Open() {
   }
   // find out maximum resolution
   else {
-    int sizes[][2] = {{320, 240}, {640, 480}, {800, 600}, {1024, 768}, {1280, 1024}, {1920, 1080}, {-1, -1}};
+    int sizes[][2] = {{320, 240}, {640, 480}, {800, 600}, {1024, 768}, {1280, 720}, {1280, 1024}, {1920, 1080}, {-1, -1}};
 
     while(sizes[i][0] != -1) {
-      w = bi.bmiHeader.biWidth = sizes[i][0];
+      inframe_w = bi.bmiHeader.biWidth = sizes[i][0];
-      h = bi.bmiHeader.biHeight = sizes[i][1];
+      inframe_h = bi.bmiHeader.biHeight = sizes[i][1];
       bi.bmiHeader.biCompression = inframe_pixfmt;
       if(capSetVideoFormat(cap, &bi, sizeof(BITMAPINFO))) {
-	printf ("%s:%d %s Resolution %dx%d (%s) works\n", __FILE__, __LINE__, __FUNCTION__, w, h, conf_format.c_str());
+	printf ("%s:%d %s Resolution %dx%d (%s) works\n", __FILE__, __LINE__, __FUNCTION__, inframe_w, inframe_h, conf_format.c_str());
-	if (w >= conf_width && h >= conf_height) {
+	if (inframe_w >= conf_width && inframe_h >= conf_height) {
-	  conf_width = w;
+	  conf_width = inframe_w;
-	  conf_height = h;
+	  conf_height = inframe_h;
 	}
       }
       i++;
     }
   }
 
+  // translate this special format to what our convert functions can work with
+  if(inframe_pixfmt == V4L2_PIX_FMT_YUY2) {
+    inframe_pixfmt = V4L2_PIX_FMT_YUYV;
+  }
+  
   return VDEV_STATUS_OK;
 };
 
@@ -135,7 +204,8 @@ int VideoDev_VFW::Close() {
 	if(cap) {
 	  capDriverDisconnect(cap);
 	  DestroyWindow(cap);
-	  cap = NULL;
+	  DestroyWindow(hwnd);
+	  hwnd = cap = NULL;
 	}
 	return VDEV_STATUS_OK;
 };
@@ -146,18 +216,15 @@ int VideoDev_VFW::Close() {
  * VideoGrabbing
  */
 
-int VFW_frame_size;
-unsigned char VFW_frame_buffer[640*480*3];
-
 LRESULT CALLBACK VFW_frame_callback(HWND h, LPVIDEOHDR v) {
-  VFW_frame_size = v->dwBytesUsed;
+  VideoDev_VFW * obj = (VideoDev_VFW *)capGetUserData(h);
-  printf("frame callback: %d bytes\n", VFW_frame_size);
+  obj->SetFrameBufferSize(v->dwBytesUsed);
-  memcpy(VFW_frame_buffer, v->lpData, VFW_frame_size);
+  memcpy(obj->GetFrameBuffer(), v->lpData, obj->GetFrameBufferSize());
   return TRUE;
 }
 
 LRESULT VFW_error_callback(HWND h, int nID, LPCSTR lpsz) {
-  printf("error callback: %d (%s)\n", nID, lpsz);
+  printf("%s:%d %s id=%d (%s)\n", __FILE__, __LINE__, __FUNCTION__, nID, lpsz);
   return TRUE;
 }
 
@@ -170,19 +237,35 @@ int VideoDev_VFW::CaptureStart() {
 
 	printf ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
 
-	capPreviewRate(cap, 50); // rate in ms
+	// allocate memory for frame data
-	capPreview(cap, TRUE);
+	if (inframe != NULL) free (inframe);
+	inframe_size = 4 * inframe_w * inframe_h;
+	inframe = (unsigned char*) malloc(inframe_size);
+
+	pixelformat = inframe_pixfmt;
 
 	if(!capSetCallbackOnError(cap, VFW_error_callback)) {
 	  printf ("%s:%d %s Could not set error callback to VFW id %d\n", __FILE__, __LINE__, __FUNCTION__, camid);
+	  return VDEV_STATUS_ERROR;
+	}
+
+#if 0
+	if(!capSetCallbackOnVideoStream(cap, VFW_frame_callback)) {
+	  printf ("%s:%d %s Could not set videostream callback to VFW id %d\n", __FILE__, __LINE__, __FUNCTION__, camid);
+	  return VDEV_STATUS_ERROR;
 	}
 	
+	if(!capSetCallbackOnYield(cap, VFW_frame_callback)) {
+	  printf ("%s:%d %s Cmould not set yield callback to VFW id %d\n", __FILE__, __LINE__, __FUNCTION__, camid);
+	  return VDEV_STATUS_ERROR;
+	}
+#endif
+	
 	if(!capSetCallbackOnFrame(cap, VFW_frame_callback)) {
 	  printf ("%s:%d %s Could not set frame callback to VFW id %d\n", __FILE__, __LINE__, __FUNCTION__, camid);
+	  return VDEV_STATUS_ERROR;
 	}
 	
-	pixelformat = inframe_pixfmt;
-
 	return VDEV_STATUS_OK;
 };
 
@@ -197,6 +280,16 @@ int VideoDev_VFW::CaptureStop() {
 	capCaptureAbort(cap);
 	capSetCallbackOnError(cap, NULL);
 	capSetCallbackOnFrame(cap, NULL);
+	capSetCallbackOnVideoStream(cap, NULL);
+	capSetCallbackOnYield(cap, NULL);
+
+	// free inframe memory
+	if (inframe) {
+		free (inframe);
+		inframe_size = 0;
+		inframe = NULL;
+	}
+
 	return VDEV_STATUS_OK;
 };
 
@@ -208,11 +301,19 @@ int VideoDev_VFW::CaptureStop() {
 // FIXME: SVBGetVideoData needs to be outside of Lock/UnLockMutex - using inside thread inbuffer
 int VideoDev_VFW::Grab(VideoFrameRaw *vf) {
 
-  //if (inframe == NULL) return VDEV_STATUS_ERROR;
+	MSG msg;
+	if(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
+	  TranslateMessage(&msg);
+	  DispatchMessage(&msg);
+	}
 
+        if (inframe == NULL) return VDEV_STATUS_ERROR;
+
+	if (GetFrameBufferSize() > 0) {
 	  LockMutex();
-	vf->CopyFrom(inframe_pixfmt, conf_width, conf_height, VFW_frame_size, VFW_frame_buffer);
+	  vf->CopyFrom(inframe_pixfmt, inframe_w, inframe_h, GetFrameBufferSize(), inframe);
 	  UnLockMutex();
+	}
 	
 	return VDEV_STATUS_OK;
 }

videodev-vfw.h

@@ -10,10 +10,11 @@ private:
         int inframe_size;
 	int inframe_w, inframe_h;
 	int inframe_pixfmt;
+        int vfw_size;
 
 	ConvertData cdata;
 	int camid;
-    HWND cap;
+        HWND cap, hwnd;
 
 	int Grab(VideoFrameRaw *vf);
 	int Open();
@@ -30,6 +31,9 @@ public:
 	int GetDeviceList(std::list<std::string> *list);
 	int GetDeviceFormats(string device, std::list<string> *formats);
 	int GetDeviceResolutions(string device, std::list<string> *formats) { return VDEV_STATUS_OK; };
+        unsigned char * GetFrameBuffer(void) { return inframe; };
+        void SetFrameBufferSize(int s) { vfw_size = s; };
+        int GetFrameBufferSize(void) { return vfw_size; };
 };
 
 #endif

windows.h

@@ -66,7 +66,7 @@ extern void strfromd (char* dest, int len, char *fmt,...);
 #define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
 
-#define V4L2_PIX_FMT_YUV2    v4l2_fourcc('Y', 'U', 'V', '2') /* ???     */
+#define V4L2_PIX_FMT_YUY2    v4l2_fourcc('Y', 'U', 'Y', '2') /* ???     */
 
 #define v4l2_fourcc(a, b, c, d)\
 	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))