gst-plugins: 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-bad/-/merge_requests/2110>

6 files changed, 135 insertions, 28 deletions

diff --git a/gst/transcode/gsttranscodebin.c b/gst/transcode/gsttranscodebin.c
index e5c041c59..0ceb163ca 100644
--- a/gst/transcode/gsttranscodebin.c
+++ b/gst/transcode/gsttranscodebin.c
@@ -23,13 +23,13 @@
 #endif
 
 #include "gsttranscoding.h"
+#include "gsttranscodeelements.h"
 #include <gst/gst-i18n-plugin.h>
 #include <gst/pbutils/pbutils.h>
 
 #include <gst/pbutils/missing-plugins.h>
 
-GST_DEBUG_CATEGORY_STATIC (gst_transcodebin_debug);
-#define GST_CAT_DEFAULT gst_transcodebin_debug
+
 
 /**
  * GstTranscodeBin!sink_%u:
@@ -123,7 +123,10 @@ typedef struct
 
 #define DEFAULT_AVOID_REENCODING   FALSE
 
-G_DEFINE_TYPE (GstTranscodeBin, gst_transcode_bin, GST_TYPE_BIN)
+G_DEFINE_TYPE (GstTranscodeBin, gst_transcode_bin, GST_TYPE_BIN);
+GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (transcodebin, "transcodebin", GST_RANK_NONE,
+      GST_TYPE_TRANSCODE_BIN, transcodebin_element_init (plugin));
+
 enum
 {
  PROP_0,
@@ -1011,27 +1014,3 @@ gst_transcode_bin_init (GstTranscodeBin * self)
 
   make_decodebin (self);
 }
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
-  gboolean res = TRUE;
-  gst_pb_utils_init ();
-
-  GST_DEBUG_CATEGORY_INIT (gst_transcodebin_debug, "transcodebin", 0,
-      "Transcodebin element");
-
-  res &= gst_element_register (plugin, "transcodebin", GST_RANK_NONE,
-      GST_TYPE_TRANSCODE_BIN);
-
-  res &= gst_element_register (plugin, "uritranscodebin", GST_RANK_NONE,
-      gst_uri_transcode_bin_get_type ());
-
-  return res;
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
-    GST_VERSION_MINOR,
-    transcode,
-    "A plugin containing elements for transcoding", plugin_init, VERSION,
-    GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
diff --git a/gst/transcode/gsttranscodeelement.c b/gst/transcode/gsttranscodeelement.c
new file mode 100644
index 000000000..7fae04b1a
--- /dev/null
+++ b/gst/transcode/gsttranscodeelement.c
@@ -0,0 +1,46 @@
+
+/* GStreamer
+ * Copyright (C) 2019 Thibault Saunier <tsaunier@igalia.com>
+ *
+ * gsttranscodebin.c:
+ *
+ * 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 "gsttranscodeelements.h"
+#include <gst/gst-i18n-plugin.h>
+#include <gst/pbutils/pbutils.h>
+
+#include <gst/pbutils/missing-plugins.h>
+
+GST_DEBUG_CATEGORY_STATIC (gst_transcodebin_debug);
+#define GST_CAT_DEFAULT gst_transcodebin_debug
+
+void
+transcodebin_element_init (GstPlugin * plugin)
+{
+  static gsize res = FALSE;
+
+  if (g_once_init_enter (&res)) {
+    gst_pb_utils_init ();
+    GST_DEBUG_CATEGORY_INIT (gst_transcodebin_debug, "transcodebin", 0,
+        "Transcodebin element");
+    g_once_init_leave (&res, TRUE);
+  }
+}
diff --git a/gst/transcode/gsttranscodeelements.h b/gst/transcode/gsttranscodeelements.h
new file mode 100644
index 000000000..25d6df366
--- /dev/null
+++ b/gst/transcode/gsttranscodeelements.h
@@ -0,0 +1,33 @@
+/* GStreamer
+ * Copyright (C) 2015 Thibault Saunier <tsaunier@gnome.org>
+ *
+ * gsttranscodebin.c:
+ *
+ * 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 __GST_TRANSCODE_ELEMENTS_H__
+#define __GST_TRANSCODE_ELEMENTS_H__
+
+
+#include <gst/gst.h>
+
+void transcodebin_element_init (GstPlugin * plugin);
+
+GST_ELEMENT_REGISTER_DECLARE (transcodebin);
+GST_ELEMENT_REGISTER_DECLARE (uritranscodebin);
+
+#endif /* __GST_TRANSCODE_ELEMENTS_H__ */
diff --git a/gst/transcode/gsttranscodeplugin.c b/gst/transcode/gsttranscodeplugin.c
new file mode 100644
index 000000000..78fb88a95
--- /dev/null
+++ b/gst/transcode/gsttranscodeplugin.c
@@ -0,0 +1,43 @@
+/* GStreamer
+ * Copyright (C) 2019 Thibault Saunier <tsaunier@igalia.com>
+ *
+ * gsttranscodebin.c:
+ *
+ * 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 "gsttranscodeelements.h"
+
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+  gboolean res = FALSE;
+
+  res |= GST_ELEMENT_REGISTER (transcodebin, plugin);
+  res |= GST_ELEMENT_REGISTER (uritranscodebin, plugin);
+
+  return res;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+    GST_VERSION_MINOR,
+    transcode,
+    "A plugin containing elements for transcoding", plugin_init, VERSION,
+    GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
diff --git a/gst/transcode/gsturitranscodebin.c b/gst/transcode/gsturitranscodebin.c
index c51ea37ac..8cf13d380 100644
--- a/gst/transcode/gsturitranscodebin.c
+++ b/gst/transcode/gsturitranscodebin.c
@@ -23,6 +23,7 @@
 #endif
 
 #include "gsttranscoding.h"
+#include "gsttranscodeelements.h"
 #if HAVE_GETRUSAGE
 #include "gst-cpu-throttling-clock.h"
 #endif
@@ -73,7 +74,10 @@ typedef struct
 
 #define DEFAULT_AVOID_REENCODING   FALSE
 
-G_DEFINE_TYPE (GstUriTranscodeBin, gst_uri_transcode_bin, GST_TYPE_PIPELINE)
+G_DEFINE_TYPE (GstUriTranscodeBin, gst_uri_transcode_bin, GST_TYPE_PIPELINE);
+GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (uritranscodebin, "uritranscodebin", GST_RANK_NONE,
+    gst_uri_transcode_bin_get_type (), transcodebin_element_init (plugin));
+
 enum
 {
  PROP_0,
diff --git a/gst/transcode/meson.build b/gst/transcode/meson.build
index a28af9a15..080623e52 100644
--- a/gst/transcode/meson.build
+++ b/gst/transcode/meson.build
@@ -1,4 +1,6 @@
 gsttranscoder_plugin = library('gsttranscode',
+  'gsttranscodeelement.c',
+  'gsttranscodeplugin.c',
   'gsttranscodebin.c',
   'gst-cpu-throttling-clock.c',
   'gsturitranscodebin.c',