[libcamera-devel,v1,07/23] gst: libcamerasrc: Add camera-name property

2741 diff mbox series

From: Nicolas Dufresne <nicolas.dufresne@collabora.com>

This property will be used to select by name the camera to use.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 src/gstreamer/gstlibcamerasrc.cpp | 68 +++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

Hi Nicolas,

Thank you for the patch.

On Tue, Jan 28, 2020 at 10:31:54PM -0500, Nicolas Dufresne wrote:
> From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> 
> This property will be used to select by name the camera to use.
> 
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> ---
>  src/gstreamer/gstlibcamerasrc.cpp | 68 +++++++++++++++++++++++++++++++
>  1 file changed, 68 insertions(+)
> 
> diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp
> index 50bba39..74e1d7e 100644
> --- a/src/gstreamer/gstlibcamerasrc.cpp
> +++ b/src/gstreamer/gstlibcamerasrc.cpp
> @@ -8,10 +8,17 @@
>  
>  #include "gstlibcamerasrc.h"
>  #include "gstlibcamerapad.h"
> +#include "gstlibcamera-utils.h"
>  
>  struct _GstLibcameraSrc {
>  	GstElement parent;
>  	GstPad *srcpad;
> +	gchar *camera_name;
> +};
> +
> +enum {
> +	PROP_0,
> +	PROP_CAMERA_NAME
>  };
>  
>  G_DEFINE_TYPE(GstLibcameraSrc, gst_libcamera_src, GST_TYPE_ELEMENT);
> @@ -28,6 +35,53 @@ GstStaticPadTemplate request_src_template = {
>  	"src_%s", GST_PAD_SRC, GST_PAD_REQUEST, TEMPLATE_CAPS
>  };
>  
> +static void
> +gst_libcamera_src_set_property(GObject *object, guint prop_id,
> +			       const GValue *value, GParamSpec *pspec)
> +{
> +	GST_OBJECT_LOCKER(object);
> +	GstLibcameraSrc *self = GST_LIBCAMERA_SRC(object);
> +
> +	switch (prop_id) {
> +	case PROP_CAMERA_NAME:
> +		g_free (self->camera_name);

Extra space after g_free.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> +		self->camera_name = g_value_dup_string(value);
> +		break;
> +	default:
> +		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
> +		break;
> +	}
> +}
> +
> +static void
> +gst_libcamera_src_get_property(GObject *object, guint prop_id, GValue *value,
> +			       GParamSpec *pspec)
> +{
> +	GST_OBJECT_LOCKER(object);
> +	GstLibcameraSrc *self = GST_LIBCAMERA_SRC(object);
> +
> +	switch (prop_id) {
> +	case PROP_CAMERA_NAME:
> +		g_value_set_string(value, self->camera_name);
> +		break;
> +	default:
> +		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
> +		break;
> +	}
> +
> +}
> +
> +static void
> +gst_libcamera_src_finalize(GObject *object)
> +{
> +	GObjectClass *klass = G_OBJECT_CLASS(gst_libcamera_src_parent_class);
> +	GstLibcameraSrc *self = GST_LIBCAMERA_SRC(object);
> +
> +	g_free(self->camera_name);
> +
> +	return klass->finalize(object);
> +}
> +
>  static void
>  gst_libcamera_src_init(GstLibcameraSrc *self)
>  {
> @@ -41,6 +95,12 @@ static void
>  gst_libcamera_src_class_init(GstLibcameraSrcClass *klass)
>  {
>  	GstElementClass *element_class = (GstElementClass *)klass;
> +	GObjectClass *object_class = (GObjectClass *)klass;
> +	GParamSpec *spec;
> +
> +	object_class->set_property = gst_libcamera_src_set_property;
> +	object_class->get_property = gst_libcamera_src_get_property;
> +	object_class->finalize = gst_libcamera_src_finalize;
>  
>  	gst_element_class_set_metadata(element_class,
>  				       "LibCamera Source", "Source/Video",
> @@ -52,4 +112,12 @@ gst_libcamera_src_class_init(GstLibcameraSrcClass *klass)
>  	gst_element_class_add_static_pad_template_with_gtype(element_class,
>  							     &request_src_template,
>  							     GST_TYPE_LIBCAMERA_PAD);
> +
> +	spec = g_param_spec_string("camera-name", "Camera Name",
> +				   "Select by name which camera to use.", nullptr,
> +				   (GParamFlags)(GST_PARAM_MUTABLE_READY
> +					   | G_PARAM_CONSTRUCT
> +					   | G_PARAM_READWRITE
> +					   | G_PARAM_STATIC_STRINGS));
> +	g_object_class_install_property(object_class, PROP_CAMERA_NAME, spec);
>  }