rpicamsrc: Add GstDeviceProvider for rpi camera module

sys/rpicamsrc/gstrpicamsrc.c

@@ -64,6 +64,7 @@
 #include "gstrpicamsrc.h"
 #include "gstrpicam_types.h"
 #include "gstrpicam-enum-types.h"
+#include "gstrpicamsrcdeviceprovider.h"
 #include "RaspiCapture.h"
 
 #include "bcm_host.h"
@@ -684,13 +685,24 @@ gst_rpi_cam_src_create (GstPushSrc * parent, GstBuffer ** buf)
 }
 
 static gboolean
-plugin_init (GstPlugin * rpicamsrc)
+plugin_init (GstPlugin * plugin)
 {
+  gboolean ret;
+
   GST_DEBUG_CATEGORY_INIT (gst_rpi_cam_src_debug, "rpicamsrc",
       0, "rpicamsrc debug");
 
-  return gst_element_register (rpicamsrc, "rpicamsrc", GST_RANK_NONE,
+  ret = gst_element_register (plugin, "rpicamsrc", GST_RANK_NONE,
       GST_TYPE_RPICAMSRC);
+
+#if GST_CHECK_VERSION (1,4,0)
+
+  ret &= gst_device_provider_register (plugin, "rpicamsrcdeviceprovider",
+      GST_RANK_PRIMARY, GST_TYPE_RPICAMSRC_DEVICE_PROVIDER);
+
+#endif
+
+  return ret;
 }
 
 #ifndef PACKAGE

sys/rpicamsrc/gstrpicamsrcdeviceprovider.c

@@ -0,0 +1,135 @@
+/* GStreamer Raspberry Pi Camera Source Device Provider
+ * Copyright (C) 2014 Tim-Philipp Müller <tim@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstrpicamsrcdeviceprovider.h"
+
+#include <string.h>
+
+#if GST_CHECK_VERSION (1,4,0)
+
+/* FIXME: translations */
+#define _(s) s
+
+static GstRpiCamSrcDevice * gst_rpi_cam_src_device_new (void);
+
+G_DEFINE_TYPE (GstRpiCamSrcDeviceProvider, gst_rpi_cam_src_device_provider,
+    GST_TYPE_DEVICE_PROVIDER);
+
+
+static GList *gst_rpi_cam_src_device_provider_probe (GstDeviceProvider * provider);
+
+static void
+gst_rpi_cam_src_device_provider_class_init (GstRpiCamSrcDeviceProviderClass * klass)
+{
+  GstDeviceProviderClass *dprovider_class = GST_DEVICE_PROVIDER_CLASS (klass);
+
+  dprovider_class->probe = gst_rpi_cam_src_device_provider_probe;
+
+  gst_device_provider_class_set_static_metadata (dprovider_class,
+      "Raspberry Pi Camera Source Device Provider", "Source/Video",
+      "Lists Raspberry Pi camera devices",
+      "Tim-Philipp Müller <tim@centricular.com>");
+}
+
+static void
+gst_rpi_cam_src_device_provider_init (GstRpiCamSrcDeviceProvider * provider)
+{
+  /* nothing to do here yet */
+}
+
+static GList *
+gst_rpi_cam_src_device_provider_probe (GstDeviceProvider * provider)
+{
+  GstRpiCamSrcDevice *device;
+
+  /* FIXME: check if camera module is usable and supported */
+  device = gst_rpi_cam_src_device_new ();
+
+  return g_list_append (NULL, device);
+}
+
+G_DEFINE_TYPE (GstRpiCamSrcDevice, gst_rpi_cam_src_device, GST_TYPE_DEVICE);
+
+static GstElement *gst_rpi_cam_src_device_create_element (GstDevice * device,
+    const gchar * name);
+
+static void
+gst_rpi_cam_src_device_class_init (GstRpiCamSrcDeviceClass * klass)
+{
+  GstDeviceClass *device_class = GST_DEVICE_CLASS (klass);
+
+  device_class->create_element = gst_rpi_cam_src_device_create_element;
+}
+
+static void
+gst_rpi_cam_src_device_init (GstRpiCamSrcDevice * device)
+{
+  /* nothing to do here */
+}
+
+static GstElement *
+gst_rpi_cam_src_device_create_element (GstDevice * device, const gchar * name)
+{
+  return gst_element_factory_make ("rpicamsrc", name);
+}
+
+static GstRpiCamSrcDevice *
+gst_rpi_cam_src_device_new (void)
+{
+  GstRpiCamSrcDevice *device;
+  GValue profiles = G_VALUE_INIT;
+  GValue val = G_VALUE_INIT;
+  GstStructure *s;
+  GstCaps *caps;
+
+  /* FIXME: retrieve limits from the camera module, max width/height/fps etc. */
+  s = gst_structure_new ("video/x-h264",
+      "width", GST_TYPE_INT_RANGE, 1, 1920,
+      "height", GST_TYPE_INT_RANGE, 1, 1080,
+      "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 90, 1,
+      "stream-format", G_TYPE_STRING, "byte-stream",
+      "alignment", G_TYPE_STRING, "au",
+      NULL);
+
+  g_value_init (&profiles, GST_TYPE_LIST);
+  g_value_init (&val, G_TYPE_STRING);
+  g_value_set_static_string (&val, "high");
+  gst_value_list_append_value (&profiles, &val);
+  g_value_set_static_string (&val, "main");
+  gst_value_list_append_value (&profiles, &val);
+  g_value_set_static_string (&val, "baseline");
+  gst_value_list_append_and_take_value (&profiles, &val);
+  gst_structure_take_value (s, "profiles", &profiles);
+
+  caps = gst_caps_new_full (s, NULL);
+
+  device = g_object_new (GST_TYPE_RPICAMSRC_DEVICE,
+      "display-name", _("Raspberry Pi Camera Module"),
+      "device-class", "Video/Source", "caps", caps, NULL);
+
+  gst_caps_unref (caps);
+
+  return device;
+}
+
+#endif /* GST_CHECK_VERSION (1,4,0) */

sys/rpicamsrc/gstrpicamsrcdeviceprovider.h

@@ -0,0 +1,79 @@
+/* GStreamer Raspberry Pi Camera Source Device Provider
+ * Copyright (C) 2014 Tim-Philipp Müller <tim@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_RPICAMSRC_DEVICE_PROVIDER_H__
+#define __GST_RPICAMSRC_DEVICE_PROVIDER_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+
+#if GST_CHECK_VERSION (1,4,0)
+
+G_BEGIN_DECLS
+
+typedef struct _GstRpiCamSrcDeviceProvider GstRpiCamSrcDeviceProvider;
+typedef struct _GstRpiCamSrcDeviceProviderClass GstRpiCamSrcDeviceProviderClass;
+
+#define GST_TYPE_RPICAMSRC_DEVICE_PROVIDER                 (gst_rpi_cam_src_device_provider_get_type())
+#define GST_IS_RPICAMSRC_DEVICE_PROVIDER(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RPICAMSRC_DEVICE_PROVIDER))
+#define GST_IS_RPICAMSRC_DEVICE_PROVIDER_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RPICAMSRC_DEVICE_PROVIDER))
+#define GST_RPICAMSRC_DEVICE_PROVIDER_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RPICAMSRC_DEVICE_PROVIDER, GstRpiCamSrcDeviceProviderClass))
+#define GST_RPICAMSRC_DEVICE_PROVIDER(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RPICAMSRC_DEVICE_PROVIDER, GstRpiCamSrcDeviceProvider))
+#define GST_RPICAMSRC_DEVICE_PROVIDER_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE_PROVIDER, GstRpiCamSrcDeviceProviderClass))
+#define GST_RPICAMSRC_DEVICE_PROVIDER_CAST(obj)            ((GstRpiCamSrcDeviceProvider *)(obj))
+
+struct _GstRpiCamSrcDeviceProvider {
+  GstDeviceProvider  parent;
+};
+
+struct _GstRpiCamSrcDeviceProviderClass {
+  GstDeviceProviderClass  parent_class;
+};
+
+GType  gst_rpi_cam_src_device_provider_get_type (void);
+
+typedef struct _GstRpiCamSrcDevice GstRpiCamSrcDevice;
+typedef struct _GstRpiCamSrcDeviceClass GstRpiCamSrcDeviceClass;
+
+#define GST_TYPE_RPICAMSRC_DEVICE                 (gst_rpi_cam_src_device_get_type())
+#define GST_IS_RPICAMSRC_DEVICE(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RPICAMSRC_DEVICE))
+#define GST_IS_RPICAMSRC_DEVICE_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RPICAMSRC_DEVICE))
+#define GST_RPICAMSRC_DEVICE_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RPICAMSRC_DEVICE, GstRpiCamSrcDeviceClass))
+#define GST_RPICAMSRC_DEVICE(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RPICAMSRC_DEVICE, GstRpiCamSrcDevice))
+#define GST_RPICAMSRC_DEVICE_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstRpiCamSrcDeviceClass))
+#define GST_RPICAMSRC_DEVICE_CAST(obj)            ((GstRpiCamSrcDevice *)(obj))
+
+struct _GstRpiCamSrcDevice {
+  GstDevice  parent;
+};
+
+struct _GstRpiCamSrcDeviceClass {
+  GstDeviceClass  parent_class;
+};
+
+GType  gst_rpi_cam_src_device_get_type (void);
+
+G_END_DECLS
+
+#endif /* GST_CHECK_VERSION (1,4,0) */
+
+#endif /* __GST_RPICAMSRC_DEVICE_PROVIDER_H__ */