qmultimedia: add support in genbindings

cmd/genbindings/config-allowlist.go

@@ -409,8 +409,14 @@ func AllowType(p CppParameter, isReturnType bool) error {
 		"QPlatformWindow",                 // e.g. qwindow.h, as below
 		"QPlatformSurface",                // e.g. qsurface.h. as below
 		"QPlatformMenu",                   // e.g. QMenu_PlatformMenu. Defined in the QPA, could probably expose as uintptr
+		"QPlatformMediaCaptureSession",    // Qt 6 Multimedia qmediacapturesession.h
+		"QPlatformMediaRecorder",          // Qt 6 Multimedia qmediarecorder.h
+		"QPlatformVideoSink",              // Qt 6 Multimedia qvideosink.h
 		"QTextDocument::ResourceProvider", // Qt 6 typedef for unsupported std::function<QVariant(const QUrl&)>
 		"QTransform::Affine",              // Qt 6 qtransform.h - public method returning private type
+		"QAbstractAudioBuffer",            // Qt 5 Multimedia, this is a private/internal type only
+		"QAbstractVideoBuffer",            // Works in Qt 5, but in Qt 6 Multimedia this type is used in qvideoframe.h but is not defined anywhere (it was later added in Qt 6.8)
+		"QRhi",                            // Qt 6 unstable types, used in Multimedia
 		"____last____":
 		return ErrTooComplex
 	}

cmd/genbindings/config-libraries.go

@@ -78,6 +78,22 @@ func ProcessLibraries(clangBin, outDir, extraLibsDir string) {
 		ClangMatchSameHeaderDefinitionOnly,
 	)
 
+	generate(
+		"qt/multimedia",
+		[]string{
+			// Theoretically, QtMultimediaWidgets and QtMultimedia are different
+			// packages, but QtMultimedia qcamera.h has a dependency on qvideowidget.
+			// Bind them together since our base /qt/ package is Widgets anyway.
+			"/usr/include/x86_64-linux-gnu/qt5/QtMultimedia",
+			"/usr/include/x86_64-linux-gnu/qt5/QtMultimediaWidgets",
+		},
+		AllowAllHeaders,
+		clangBin,
+		pkgConfigCflags("Qt5MultimediaWidgets"),
+		outDir,
+		ClangMatchSameHeaderDefinitionOnly,
+	)
+
 	// Depends on QtCore/Gui/Widgets, QPrintSupport
 	generate(
 		"qt-restricted-extras/qscintilla",
@@ -183,4 +199,32 @@ func ProcessLibraries(clangBin, outDir, extraLibsDir string) {
 		outDir,
 		ClangMatchSameHeaderDefinitionOnly,
 	)
+
+	// Qt 6 QtMultimedia
+	generate(
+		"qt6/multimedia",
+		[]string{
+			"/usr/include/x86_64-linux-gnu/qt6/QtMultimedia",
+			"/usr/include/x86_64-linux-gnu/qt6/QtMultimediaWidgets",
+		},
+		AllowAllHeaders,
+		clangBin,
+		"--std=c++17 "+pkgConfigCflags("Qt6MultimediaWidgets"),
+		outDir,
+		ClangMatchSameHeaderDefinitionOnly,
+	)
+
+	// Qt 6 Spatial Audio (on Debian this is a dependency of Qt6Multimedia)
+	generate(
+		"qt6/spatialaudio",
+		[]string{
+			"/usr/include/x86_64-linux-gnu/qt6/QtSpatialAudio",
+		},
+		AllowAllHeaders,
+		clangBin,
+		"--std=c++17 "+pkgConfigCflags("Qt6SpatialAudio"),
+		outDir,
+		ClangMatchSameHeaderDefinitionOnly,
+	)
+
 }

docker/genbindings.Dockerfile

@@ -4,7 +4,9 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     apt-get install --no-install-recommends -qyy \
         golang-go \
         qtbase5-dev \
+        qtmultimedia5-dev \
         qt6-base-dev \
+        qt6-multimedia-dev \
         libqscintilla2-qt5-dev \
         clang \
         git \