soup: Fix plugin/element init

In case of per features registration such as the
customizable gstreamer-full library, each
element should check that the soup library can be loaded to
facilitate the element registration.

Initialize the debug category properly

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2349>

subprojects/gst-plugins-good/ext/soup/gstsoup.c

@@ -31,15 +31,6 @@ plugin_init (GstPlugin * plugin)
 {
   gboolean ret = FALSE;
 
-  GST_DEBUG_CATEGORY_INIT (gst_soup_debug, "soup", 0, "soup");
-
-#ifndef STATIC_SOUP
-  if (!gst_soup_load_library ()) {
-    GST_WARNING ("Failed to load libsoup library");
-    return TRUE;
-  }
-#endif
-
   ret |= GST_ELEMENT_REGISTER (souphttpsrc, plugin);
   ret |= GST_ELEMENT_REGISTER (souphttpclientsink, plugin);
 

subprojects/gst-plugins-good/ext/soup/gstsoupelement.c

@@ -25,7 +25,7 @@
 
 GST_DEBUG_CATEGORY (soup_utils_debug);
 
-void
+gboolean
 soup_element_init (GstPlugin * plugin)
 {
   static gsize res = FALSE;
@@ -55,4 +55,11 @@ soup_element_init (GstPlugin * plugin)
 
     g_once_init_leave (&res, TRUE);
   }
+#ifndef STATIC_SOUP
+  if (!gst_soup_load_library ()) {
+    GST_WARNING ("Failed to load libsoup library");
+    return FALSE;
+  }
+#endif
+  return TRUE;
 }

subprojects/gst-plugins-good/ext/soup/gstsoupelements.h

@@ -24,7 +24,7 @@
 
 G_BEGIN_DECLS
 
-void soup_element_init (GstPlugin * plugin);
+gboolean soup_element_init (GstPlugin * plugin);
 
 GST_ELEMENT_REGISTER_DECLARE (souphttpsrc);
 GST_ELEMENT_REGISTER_DECLARE (souphttpclientsink);

subprojects/gst-plugins-good/ext/soup/gstsouphttpclientsink.c

@@ -115,8 +115,11 @@ GST_STATIC_PAD_TEMPLATE ("sink",
 #define gst_soup_http_client_sink_parent_class parent_class
 G_DEFINE_TYPE (GstSoupHttpClientSink, gst_soup_http_client_sink,
     GST_TYPE_BASE_SINK);
-GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (souphttpclientsink, "souphttpclientsink",
+
-    GST_RANK_NONE, GST_TYPE_SOUP_HTTP_CLIENT_SINK, soup_element_init (plugin));
+static gboolean souphttpclientsink_element_init (GstPlugin * plugin);
+GST_ELEMENT_REGISTER_DEFINE_CUSTOM (souphttpclientsink,
+    souphttpclientsink_element_init);
+
 
 static void
 gst_soup_http_client_sink_class_init (GstSoupHttpClientSinkClass * klass)
@@ -211,9 +214,6 @@ gst_soup_http_client_sink_class_init (GstSoupHttpClientSinkClass * klass)
       GST_DEBUG_FUNCPTR (gst_soup_http_client_sink_unlock);
   base_sink_class->render =
       GST_DEBUG_FUNCPTR (gst_soup_http_client_sink_render);
-
-  GST_DEBUG_CATEGORY_INIT (souphttpclientsink_dbg, "souphttpclientsink", 0,
-      "souphttpclientsink element");
 }
 
 static void
@@ -912,3 +912,21 @@ authenticate (SoupMessage * msg, SoupAuth * auth,
   }
   return FALSE;
 }
+
+static gboolean
+souphttpclientsink_element_init (GstPlugin * plugin)
+{
+  gboolean ret = TRUE;
+
+  GST_DEBUG_CATEGORY_INIT (souphttpclientsink_dbg, "souphttpclientsink", 0,
+      "souphttpclientsink element");
+
+  if (!soup_element_init (plugin))
+    return TRUE;
+
+  ret =
+      gst_element_register (plugin, "souphttpclientsink", GST_RANK_NONE,
+      GST_TYPE_SOUP_HTTP_CLIENT_SINK);
+
+  return ret;
+}

subprojects/gst-plugins-good/ext/soup/gstsouphttpsrc.c

@@ -272,8 +272,9 @@ static gboolean gst_soup_http_src_accept_certificate_cb (SoupMessage * msg,
 G_DEFINE_TYPE_WITH_CODE (GstSoupHTTPSrc, gst_soup_http_src, GST_TYPE_PUSH_SRC,
     G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
         gst_soup_http_src_uri_handler_init));
-GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (souphttpsrc, "souphttpsrc",
+
-    GST_RANK_PRIMARY, GST_TYPE_SOUP_HTTP_SRC, soup_element_init (plugin));
+static gboolean souphttpsrc_element_init (GstPlugin * plugin);
+GST_ELEMENT_REGISTER_DEFINE_CUSTOM (souphttpsrc, souphttpsrc_element_init);
 
 static void
 gst_soup_http_src_class_init (GstSoupHTTPSrcClass * klass)
@@ -519,9 +520,6 @@ gst_soup_http_src_class_init (GstSoupHTTPSrcClass * klass)
   gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_soup_http_src_query);
 
   gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_soup_http_src_create);
-
-  GST_DEBUG_CATEGORY_INIT (souphttpsrc_debug, "souphttpsrc", 0,
-      "SOUP HTTP src");
 }
 
 static void
@@ -2631,3 +2629,20 @@ gst_soup_http_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
   iface->get_uri = gst_soup_http_src_uri_get_uri;
   iface->set_uri = gst_soup_http_src_uri_set_uri;
 }
+
+static gboolean
+souphttpsrc_element_init (GstPlugin * plugin)
+{
+  gboolean ret = TRUE;
+
+  GST_DEBUG_CATEGORY_INIT (souphttpsrc_debug, "souphttpsrc", 0,
+      "SOUP HTTP src");
+
+  if (!soup_element_init (plugin))
+    return TRUE;
+
+  ret = gst_element_register (plugin, "souphttpsrc",
+      GST_RANK_PRIMARY, GST_TYPE_SOUP_HTTP_SRC);
+
+  return ret;
+}