[libcamera-devel] [PATCH v3 07/13] libcamera: stream: Turn StreamRole into scoped enumeration

[Laurent Pinchart]

The StreamRole enum has enumerators such as 'Raw' that are too generic
to be in the global libcamera namespace. Turn it into a scoped enum to
avoid namespace clashes, and update users accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 include/libcamera/stream.h              |  2 +-
 src/apps/lc-compliance/capture_test.cpp | 17 ++++++++++++-----
 src/gstreamer/gstlibcamerapad.cpp       | 20 +++++++++++++++-----
 3 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h
index efec695ad317..29235ddf0d8a 100644
--- a/include/libcamera/stream.h
+++ b/include/libcamera/stream.h
@@ -62,7 +62,7 @@ private:
 	StreamFormats formats_;
 };
 
-enum StreamRole {
+enum class StreamRole {
 	Raw,
 	StillCapture,
 	VideoRecording,
diff --git a/src/apps/lc-compliance/capture_test.cpp b/src/apps/lc-compliance/capture_test.cpp
index 52578207c11f..1dcfcf92fc8c 100644
--- a/src/apps/lc-compliance/capture_test.cpp
+++ b/src/apps/lc-compliance/capture_test.cpp
@@ -16,7 +16,12 @@
 using namespace libcamera;
 
 const std::vector<int> NUMREQUESTS = { 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 };
-const std::vector<StreamRole> ROLES = { Raw, StillCapture, VideoRecording, Viewfinder };
+const std::vector<StreamRole> ROLES = {
+	StreamRole::Raw,
+	StreamRole::StillCapture,
+	StreamRole::VideoRecording,
+	StreamRole::Viewfinder
+};
 
 class SingleStream : public testing::TestWithParam<std::tuple<StreamRole, int>>
 {
@@ -54,10 +59,12 @@ void SingleStream::TearDown()
 
 std::string SingleStream::nameParameters(const testing::TestParamInfo<SingleStream::ParamType> &info)
 {
-	std::map<StreamRole, std::string> rolesMap = { { Raw, "Raw" },
-						       { StillCapture, "StillCapture" },
-						       { VideoRecording, "VideoRecording" },
-						       { Viewfinder, "Viewfinder" } };
+	std::map<StreamRole, std::string> rolesMap = {
+		{ StreamRole::Raw, "Raw" },
+		{ StreamRole::StillCapture, "StillCapture" },
+		{ StreamRole::VideoRecording, "VideoRecording" },
+		{ StreamRole::Viewfinder, "Viewfinder" }
+	};
 
 	std::string roleName = rolesMap[std::get<0>(info.param)];
 	std::string numRequestsName = std::to_string(std::get<1>(info.param));
diff --git a/src/gstreamer/gstlibcamerapad.cpp b/src/gstreamer/gstlibcamerapad.cpp
index 87b4057ac101..9e710a479368 100644
--- a/src/gstreamer/gstlibcamerapad.cpp
+++ b/src/gstreamer/gstlibcamerapad.cpp
@@ -54,7 +54,7 @@ gst_libcamera_pad_get_property(GObject *object, guint prop_id, GValue *value,
 
 	switch (prop_id) {
 	case PROP_STREAM_ROLE:
-		g_value_set_enum(value, self->role);
+		g_value_set_enum(value, static_cast<gint>(self->role));
 		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
@@ -87,9 +87,19 @@ gst_libcamera_stream_role_get_type()
 {
 	static GType type = 0;
 	static const GEnumValue values[] = {
-		{ StillCapture, "libcamera::StillCapture", "still-capture" },
-		{ VideoRecording, "libcamera::VideoRecording", "video-recording" },
-		{ Viewfinder, "libcamera::Viewfinder", "view-finder" },
+		{
+			static_cast<gint>(StreamRole::StillCapture),
+			"libcamera::StillCapture",
+			"still-capture",
+		}, {
+			static_cast<gint>(StreamRole::VideoRecording),
+			"libcamera::VideoRecording",
+			"video-recording",
+		}, {
+			static_cast<gint>(StreamRole::Viewfinder),
+			"libcamera::Viewfinder",
+			"view-finder",
+		},
 		{ 0, NULL, NULL }
 	};
 
@@ -110,7 +120,7 @@ gst_libcamera_pad_class_init(GstLibcameraPadClass *klass)
 	auto *spec = g_param_spec_enum("stream-role", "Stream Role",
 				       "The selected stream role",
 				       gst_libcamera_stream_role_get_type(),
-				       VideoRecording,
+				       static_cast<gint>(StreamRole::VideoRecording),
 				       (GParamFlags)(GST_PARAM_MUTABLE_READY
 					             | G_PARAM_CONSTRUCT
 						     | G_PARAM_READWRITE
-- 
Regards,

Laurent Pinchart