Add support for utv007 / Linux (#423)

Author: awawa-dev

Diff for: sources/base/schema/schema-color.json

@@ -13,7 +13,7 @@
 			"options" : {
 				"enum_titles" : ["edt_conf_enum_multicolor_mean", "edt_conf_enum_unicolor_mean", "edt_conf_enum_unicolor_advanced", "edt_conf_enum_unicolor_weighted"]
 			},
-			"default"  : "advanced",
+			"default"  : "multicolor_mean",
 			"propertyOrder" : 1
 		},
 		"sparse_processing" :
@@ -60,7 +60,7 @@
 						"type" : "boolean",
 						"format": "checkbox",
 						"title" : "edt_conf_color_classic_config_title",
-						"default" : true,
+						"default" : false,
 						"required" : true,
 						"propertyOrder" : 3
 					},

Diff for: sources/grabber/v4l2/V4L2Grabber.cpp

@@ -540,6 +540,18 @@ void V4L2Grabber::enumerateV4L2devices(bool silent)
 
 				devNameFile.close();
 			}
+
+			// UTV007 workaround
+			if (properties.valid.size() == 0 && realName.indexOf("usbtv ", 0, Qt::CaseInsensitive) == 0)
+			{
+				Warning(_log, "To have proper colors when using UTV007 grabber, you may need to add 'sudo systemctl stop hyperhdr@pi && v4l2-ctl -s pal-B && sudo systemctl start hyperhdr@pi' to /etc/rc.local or run it manually to set the PAL standard");
+				{ DevicePropertiesItem diL; diL.x = 320; diL.y = 240; diL.fps = 30; diL.pf = identifyFormat(V4L2_PIX_FMT_YUYV); diL.v4l2PixelFormat = V4L2_PIX_FMT_YUYV; diL.input = 0; properties.valid.append(diL); }
+				{ DevicePropertiesItem diL; diL.x = 320; diL.y = 288; diL.fps = 25; diL.pf = identifyFormat(V4L2_PIX_FMT_YUYV); diL.v4l2PixelFormat = V4L2_PIX_FMT_YUYV; diL.input = 0; properties.valid.append(diL); }
+				{ DevicePropertiesItem diL; diL.x = 360; diL.y = 240; diL.fps = 30; diL.pf = identifyFormat(V4L2_PIX_FMT_YUYV); diL.v4l2PixelFormat = V4L2_PIX_FMT_YUYV; diL.input = 0; properties.valid.append(diL); }
+				{ DevicePropertiesItem diL; diL.x = 720; diL.y = 480; diL.fps = 30; diL.pf = identifyFormat(V4L2_PIX_FMT_YUYV); diL.v4l2PixelFormat = V4L2_PIX_FMT_YUYV; diL.input = 0; properties.valid.append(diL); }
+				{ DevicePropertiesItem diL; diL.x = 720; diL.y = 576; diL.fps = 25; diL.pf = identifyFormat(V4L2_PIX_FMT_YUYV); diL.v4l2PixelFormat = V4L2_PIX_FMT_YUYV; diL.input = 0; properties.valid.append(diL); }
+			}
+
 			_deviceProperties.insert(realName, properties);
 
 			if (!silent)