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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Collabora Ltd.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
*
* gstlibcamerasrc.cpp - GStreamer Capture Element
*/
#include "gstlibcamerasrc.h"
#include "gstlibcamerapad.h"
#include "gstlibcamera-utils.h"
GST_DEBUG_CATEGORY_STATIC(source_debug);
#define GST_CAT_DEFAULT source_debug
struct _GstLibcameraSrc {
GstElement parent;
GstPad *srcpad;
gchar *camera_name;
};
enum {
PROP_0,
PROP_CAMERA_NAME
};
G_DEFINE_TYPE_WITH_CODE(GstLibcameraSrc, gst_libcamera_src, GST_TYPE_ELEMENT,
GST_DEBUG_CATEGORY_INIT(source_debug, "libcamerasrc", 0,
"libcamera Source"));
#define TEMPLATE_CAPS GST_STATIC_CAPS("video/x-raw; image/jpeg")
/* For the simple case, we have a src pad that is always present. */
GstStaticPadTemplate src_template = {
"src", GST_PAD_SRC, GST_PAD_ALWAYS, TEMPLATE_CAPS
};
/* More pads can be requested in state < PAUSED */
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)
{
GLibLocker lock(GST_OBJECT(object));
GstLibcameraSrc *self = GST_LIBCAMERA_SRC(object);
switch (prop_id) {
case PROP_CAMERA_NAME:
g_free(self->camera_name);
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)
{
GLibLocker lock(GST_OBJECT(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)
{
GstPadTemplate *templ = gst_element_get_pad_template(GST_ELEMENT(self), "src");
self->srcpad = gst_pad_new_from_template(templ, "src");
gst_element_add_pad(GST_ELEMENT(self), self->srcpad);
}
static void
gst_libcamera_src_class_init(GstLibcameraSrcClass *klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS(klass);
GObjectClass *object_class = G_OBJECT_CLASS(klass);
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",
"Linux Camera source using libcamera",
"Nicolas Dufresne <nicolas.dufresne@collabora.com");
gst_element_class_add_static_pad_template_with_gtype(element_class,
&src_template,
GST_TYPE_LIBCAMERA_PAD);
gst_element_class_add_static_pad_template_with_gtype(element_class,
&request_src_template,
GST_TYPE_LIBCAMERA_PAD);
GParamSpec *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);
}
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