qt6d3d11: Add plugin docs

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5258>

subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json

@@ -228956,6 +228956,68 @@
         "tracers": {},
         "url": "Unknown package origin"
     },
+    "qt6d3d11": {
+        "description": "Qt6 Direct3D11 plugin",
+        "elements": {
+            "qml6d3d11sink": {
+                "author": "Seungha Yang <seungha@centricular.com>",
+                "description": "A video sink that renders to a QQuickItem for Qt6 using Direct3D11",
+                "hierarchy": [
+                    "GstQml6D3D11Sink",
+                    "GstVideoSink",
+                    "GstBaseSink",
+                    "GstElement",
+                    "GstObject",
+                    "GInitiallyUnowned",
+                    "GObject"
+                ],
+                "interfaces": [
+                    "GstNavigation"
+                ],
+                "klass": "Sink/Video",
+                "pad-templates": {
+                    "sink": {
+                        "caps": "video/x-raw(memory:D3D11Memory):\n         format: { RGBA64_LE, RGB10A2_LE, BGRA, RGBA, BGRx, RGBx, VUYA, NV12, NV21, P010_10LE, P012_LE, P016_LE, I420, YV12, I420_10LE, I420_12LE, Y42B, I422_10LE, I422_12LE, Y444, Y444_10LE, Y444_12LE, Y444_16LE, GRAY8, GRAY16_LE, AYUV, AYUV64, RGBP, BGRP, GBR, GBR_10LE, GBR_12LE, GBRA, GBRA_10LE, GBRA_12LE, Y410, YUY2 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\nvideo/x-raw:\n         format: { RGBA64_LE, RGB10A2_LE, BGRA, RGBA, BGRx, RGBx, VUYA, NV12, NV21, P010_10LE, P012_LE, P016_LE, I420, YV12, I420_10LE, I420_12LE, Y42B, I422_10LE, I422_12LE, Y444, Y444_10LE, Y444_12LE, Y444_16LE, GRAY8, GRAY16_LE, AYUV, AYUV64, RGBP, BGRP, GBR, GBR_10LE, GBR_12LE, GBRA, GBRA_10LE, GBRA_12LE, Y410, YUY2 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n",
+                        "direction": "sink",
+                        "presence": "always"
+                    }
+                },
+                "properties": {
+                    "force-aspect-ratio": {
+                        "blurb": "When enabled, scaling will respect original aspect ratio",
+                        "conditionally-available": false,
+                        "construct": false,
+                        "construct-only": false,
+                        "controllable": false,
+                        "default": "true",
+                        "mutable": "null",
+                        "readable": true,
+                        "type": "gboolean",
+                        "writable": true
+                    },
+                    "widget": {
+                        "blurb": "The QQuickItem to place in the object hierarchy",
+                        "conditionally-available": false,
+                        "construct": false,
+                        "construct-only": false,
+                        "controllable": false,
+                        "mutable": "ready",
+                        "readable": true,
+                        "type": "gpointer",
+                        "writable": true
+                    }
+                },
+                "rank": "none"
+            }
+        },
+        "filename": "gstqt6d3d11",
+        "license": "LGPL",
+        "other-types": {},
+        "package": "GStreamer Bad Plug-ins",
+        "source": "gst-plugins-bad",
+        "tracers": {},
+        "url": "Unknown package origin"
+    },
     "removesilence": {
         "description": "Removes silence from an audio stream",
         "elements": {

subprojects/gst-plugins-bad/ext/qt6d3d11/plugin.cpp

@@ -26,6 +26,12 @@
 
 GST_DEBUG_CATEGORY (gst_qt6_d3d11_debug);
 
+/**
+ * plugin-qt6d3d11:
+ *
+ * Since: 1.24
+ */
+
 static gboolean
 plugin_init (GstPlugin * plugin)
 {