[v4,2/3] gstreamer: Move existing GValue helpers to gstreamer-utils
diff mbox series

Message ID 20250724133343.353044-3-uajain@igalia.com
State New
Headers show
Series
  • gstreamer: Report camera properties as device properties
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Commit Message

Umang Jain July 24, 2025, 1:33 p.m. UTC 
Move the existing GValue helpers from gstlibcamera-controls.cpp.in
to gstreamer-utils.cpp. The intention here is to make these helpers
available to other parts of gstreamer source element, for example,
reporting camera properties in GstDeviceProvider.

The function signature has been changed to match with the other
gstreamer-utils utility functions:

value_get_rectangle() =>  gst_libcamera_gvalue_get_rectangle()
value_set_rectangle() =>  gst_libcamera_gvalue_set_rectangle()
value_set_point()     =>  gst_libcamera_gvalue_set_point()
value_set_size()      =>  gst_libcamera_gvalue_set_size()

Signed-off-by: Umang Jain <uajain@igalia.com>
---
 src/gstreamer/gstlibcamera-controls.cpp.in | 56 ++--------------------
 src/gstreamer/gstlibcamera-utils.cpp       | 47 ++++++++++++++++++
 src/gstreamer/gstlibcamera-utils.h         |  4 ++
 3 files changed, 56 insertions(+), 51 deletions(-)

Patch
diff mbox series 

diff --git a/src/gstreamer/gstlibcamera-controls.cpp.in b/src/gstreamer/gstlibcamera-controls.cpp.in
index 1bc781cc..6faf3ee7 100644
--- a/src/gstreamer/gstlibcamera-controls.cpp.in
+++ b/src/gstreamer/gstlibcamera-controls.cpp.in
@@ -14,56 +14,10 @@ 
 #include <libcamera/geometry.h>
 
 #include "gstlibcamera-controls.h"
+#include "gstlibcamera-utils.h"
 
 using namespace libcamera;
 
-static void value_set_point(GValue *value, const Point &point)
-{
-	GValue x = G_VALUE_INIT;
-	g_value_init(&x, G_TYPE_INT);
-	g_value_set_int(&x, point.x);
-	gst_value_array_append_and_take_value(value, &x);
-
-	GValue y = G_VALUE_INIT;
-	g_value_init(&y, G_TYPE_INT);
-	g_value_set_int(&y, point.y);
-	gst_value_array_append_and_take_value(value, &y);
-}
-
-static void value_set_size(GValue *value, const Size &size)
-{
-	GValue width = G_VALUE_INIT;
-	g_value_init(&width, G_TYPE_INT);
-	g_value_set_int(&width, size.width);
-	gst_value_array_append_and_take_value(value, &width);
-
-	GValue height = G_VALUE_INIT;
-	g_value_init(&height, G_TYPE_INT);
-	g_value_set_int(&height, size.height);
-	gst_value_array_append_and_take_value(value, &height);
-}
-
-static void value_set_rectangle(GValue *value, const Rectangle &rect)
-{
-	value_set_point(value, rect.topLeft());
-	value_set_size(value, rect.size());
-}
-
-static Rectangle value_get_rectangle(const GValue *value)
-{
-	const GValue *r;
-	r = gst_value_array_get_value(value, 0);
-	int x = g_value_get_int(r);
-	r = gst_value_array_get_value(value, 1);
-	int y = g_value_get_int(r);
-	r = gst_value_array_get_value(value, 2);
-	int w = g_value_get_int(r);
-	r = gst_value_array_get_value(value, 3);
-	int h = g_value_get_int(r);
-
-	return Rectangle(x, y, w, h);
-}
-
 {% for vendor, ctrls in controls %}
 {%- for ctrl in ctrls if ctrl.is_enum %}
 static const GEnumValue {{ ctrl.name|snake_case }}_types[] = {
@@ -179,7 +133,7 @@  bool GstCameraControls::getProperty(guint propId, GValue *value,
 			GValue element = G_VALUE_INIT;
 {%- if ctrl.is_rectangle %}
 			g_value_init(&element, GST_TYPE_PARAM_ARRAY_LIST);
-			value_set_rectangle(&element, control[i]);
+			gst_libcamera_gvalue_set_rectangle(&element, control[i]);
 {%- else %}
 			g_value_init(&element, G_TYPE_{{ ctrl.gtype|upper }});
 			g_value_set_{{ ctrl.gtype }}(&element, control[i]);
@@ -188,7 +142,7 @@  bool GstCameraControls::getProperty(guint propId, GValue *value,
 		}
 {%- else %}
 {%- if ctrl.is_rectangle %}
-		value_set_rectangle(value, control);
+		gst_libcamera_gvalue_set_rectangle(value, control);
 {%- else %}
 		g_value_set_{{ ctrl.gtype }}(value, control);
 {%- endif %}
@@ -252,7 +206,7 @@  bool GstCameraControls::setProperty(guint propId, const GValue *value,
 					  i);
 				return true;
 			}
-			values[i] = value_get_rectangle(element);
+			values[i] = gst_libcamera_gvalue_get_rectangle(element);
 {%- else %}
 			values[i] = g_value_get_{{ ctrl.gtype }}(element);
 {%- endif %}
@@ -271,7 +225,7 @@  bool GstCameraControls::setProperty(guint propId, const GValue *value,
 				  "array of size 4");
 			return true;
 		}
-		Rectangle val = value_get_rectangle(value);
+		Rectangle val = gst_libcamera_gvalue_get_rectangle(value);
 {%- else %}
 		auto val = g_value_get_{{ ctrl.gtype }}(value);
 {%- endif %}
diff --git a/src/gstreamer/gstlibcamera-utils.cpp b/src/gstreamer/gstlibcamera-utils.cpp
index a548b0c1..63e00fe0 100644
--- a/src/gstreamer/gstlibcamera-utils.cpp
+++ b/src/gstreamer/gstlibcamera-utils.cpp
@@ -584,6 +584,53 @@  void gst_libcamera_framerate_to_caps(GstCaps *caps, const GstStructure *element_
 	gst_structure_set(s, "framerate", GST_TYPE_FRACTION, fps_caps_n, fps_caps_d, nullptr);
 }
 
+void gst_libcamera_gvalue_set_point(GValue *value, const Point &point)
+{
+	GValue x = G_VALUE_INIT;
+	g_value_init(&x, G_TYPE_INT);
+	g_value_set_int(&x, point.x);
+	gst_value_array_append_and_take_value(value, &x);
+
+	GValue y = G_VALUE_INIT;
+	g_value_init(&y, G_TYPE_INT);
+	g_value_set_int(&y, point.y);
+	gst_value_array_append_and_take_value(value, &y);
+}
+
+void gst_libcamera_gvalue_set_size(GValue *value, const Size &size)
+{
+	GValue width = G_VALUE_INIT;
+	g_value_init(&width, G_TYPE_INT);
+	g_value_set_int(&width, size.width);
+	gst_value_array_append_and_take_value(value, &width);
+
+	GValue height = G_VALUE_INIT;
+	g_value_init(&height, G_TYPE_INT);
+	g_value_set_int(&height, size.height);
+	gst_value_array_append_and_take_value(value, &height);
+}
+
+void gst_libcamera_gvalue_set_rectangle(GValue *value, const Rectangle &rect)
+{
+	gst_libcamera_gvalue_set_point(value, rect.topLeft());
+	gst_libcamera_gvalue_set_size(value, rect.size());
+}
+
+Rectangle gst_libcamera_gvalue_get_rectangle(const GValue *value)
+{
+	const GValue *r;
+	r = gst_value_array_get_value(value, 0);
+	int x = g_value_get_int(r);
+	r = gst_value_array_get_value(value, 1);
+	int y = g_value_get_int(r);
+	r = gst_value_array_get_value(value, 2);
+	int w = g_value_get_int(r);
+	r = gst_value_array_get_value(value, 3);
+	int h = g_value_get_int(r);
+
+	return Rectangle(x, y, w, h);
+}
+
 #if !GST_CHECK_VERSION(1, 17, 1)
 gboolean
 gst_task_resume(GstTask *task)
diff --git a/src/gstreamer/gstlibcamera-utils.h b/src/gstreamer/gstlibcamera-utils.h
index 5f4e8a0f..1812be75 100644
--- a/src/gstreamer/gstlibcamera-utils.h
+++ b/src/gstreamer/gstlibcamera-utils.h
@@ -25,6 +25,10 @@  void gst_libcamera_clamp_and_set_frameduration(libcamera::ControlList &controls,
 					       const libcamera::ControlInfoMap &camera_controls,
 					       GstStructure *element_caps);
 void gst_libcamera_framerate_to_caps(GstCaps *caps, const GstStructure *element_caps);
+void gst_libcamera_gvalue_set_point(GValue *value, const libcamera::Point &point);
+void gst_libcamera_gvalue_set_size(GValue *value, const libcamera::Size &size);
+void gst_libcamera_gvalue_set_rectangle(GValue *value, const libcamera::Rectangle &rect);
+libcamera::Rectangle gst_libcamera_gvalue_get_rectangle(const GValue *value);
 
 #if !GST_CHECK_VERSION(1, 16, 0)
 static inline void gst_clear_event(GstEvent **event_ptr)