encoding: allow per feature registration

Split plugin into features including
dynamic types which can be indiviually
registered during a static build.

More details here:

https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/199
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/661

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1029>

gst/encoding/gstencodebin.c

@@ -83,6 +83,7 @@
  *
  */
 
+#include "gstencodingelements.h"
 #include "gstencodebin.h"
 
 struct _GstEncodeBin
@@ -91,6 +92,8 @@ struct _GstEncodeBin
 };
 
 G_DEFINE_TYPE (GstEncodeBin, gst_encode_bin, GST_TYPE_ENCODE_BASE_BIN);
+GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (encodebin, "encodebin", GST_RANK_NONE,
+    gst_encode_bin_get_type (), encoding_element_init (plugin));
 
 static GstStaticPadTemplate muxer_src_template =
 GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,

gst/encoding/gstencodebin2.c

@@ -23,9 +23,11 @@
 #endif
 
 #include <string.h>
+#include "gstencodingelements.h"
 #include "gstencodebasebin.h"
 #include "gstencodebin2.h"
 
+
 /**
  * SECTION:element-encodebin2
  *
@@ -57,6 +59,8 @@ struct _GstEncodeBin2
 };
 
 G_DEFINE_TYPE (GstEncodeBin2, gst_encode_bin2, GST_TYPE_ENCODE_BASE_BIN);
+GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (encodebin2, "encodebin2", GST_RANK_NONE,
+    gst_encode_bin2_get_type (), encoding_element_init (plugin));
 
 static void
 gst_encode_bin2_class_init (GstEncodeBin2Class * klass)

gst/encoding/gstencodingelements.c

@@ -0,0 +1,46 @@
+/* GStreamer encoding bin
+ * Copyright (C) 2016 Jan Schmidt <jan@centricular.com>
+ *           (C) 2020 Thibault Saunier <tsaunier@igalia.com>
+ *           (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
+ *           (C) 2009 Nokia Corporation
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/gst-i18n-plugin.h>
+
+#include "gstencodingelements.h"
+
+void
+encoding_element_init (GstPlugin * plugin)
+{
+  static gsize res = FALSE;
+
+  if (g_once_init_enter (&res)) {
+#ifdef ENABLE_NLS
+    GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
+        LOCALEDIR);
+    bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+#endif
+    g_once_init_leave (&res, TRUE);
+  }
+}

gst/encoding/gstencodingelements.h

@@ -0,0 +1,36 @@
+/* GStreamer encoding bin
+ * Copyright (C) 2016 Jan Schmidt <jan@centricular.com>
+ *           (C) 2020 Thibault Saunier <tsaunier@igalia.com>
+ *           (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
+ *           (C) 2009 Nokia Corporation
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef __ENCODING_ELEMENTS_H__
+#define __ENCODING_ELEMENTS_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+G_GNUC_INTERNAL void encoding_element_init (GstPlugin * plugin);
+
+GST_ELEMENT_REGISTER_DECLARE (encodebin);
+GST_ELEMENT_REGISTER_DECLARE (encodebin2);
+
+G_END_DECLS
+
+#endif //__ENCODING_ELEMENTS_H__

gst/encoding/meson.build

@@ -6,6 +6,7 @@ encoding_sources = [
   'gststreamcombiner.c',
   'gststreamsplitter.c',
   'plugin.c',
+  'gstencodingelements.c',
 ]
 
 gstencoding = library('gstencoding',

gst/encoding/plugin.c

@@ -24,30 +24,18 @@
 #endif
 
 #include <gst/gst.h>
-#include <gst/gst-i18n-plugin.h>
 
-#include "gstencodebin.h"
-#include "gstencodebin2.h"
+#include "gstencodingelements.h"
 
 static gboolean
 plugin_init (GstPlugin * plugin)
 {
-  gboolean res;
+  gboolean ret = FALSE;
 
-#ifdef ENABLE_NLS
-  GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
-      LOCALEDIR);
-  bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
-  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
-#endif /* ENABLE_NLS */
+  ret |= GST_ELEMENT_REGISTER (encodebin, plugin);
+  ret |= GST_ELEMENT_REGISTER (encodebin2, plugin);
 
-  res = gst_element_register (plugin, "encodebin", GST_RANK_NONE,
-      gst_encode_bin_get_type ());
-
-  res |= gst_element_register (plugin, "encodebin2", GST_RANK_NONE,
-      gst_encode_bin2_get_type ());
-
-  return res;
+  return ret;
 }
 
 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,