From 114ef64465bfdadd51d217f5470b79a9c9534624 Mon Sep 17 00:00:00 2001
From: Thibault Saunier <tsaunier@igalia.com>
Date: Thu, 15 Jun 2023 17:35:57 -0400
Subject: [PATCH] ges: Expose GESDiscovererManager::source-setup

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5608>
---
 girs/GES-1.0.gir                              | 12 ++++++++++
 .../ges/ges-discoverer-manager.c              | 22 +++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/girs/GES-1.0.gir b/girs/GES-1.0.gir
index de3541e37b..b5b94b9fff 100644
--- a/girs/GES-1.0.gir
+++ b/girs/GES-1.0.gir
@@ -3234,6 +3234,18 @@ discovery.</doc>
           </parameter>
         </parameters>
       </glib:signal>
+      <glib:signal name="source-setup" when="last" version="1.24">
+        <doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-discoverer-manager.c">Allows to setup the source element before the discoverer runs.</doc>
+        <return-value transfer-ownership="none">
+          <type name="none" c:type="void"/>
+        </return-value>
+        <parameters>
+          <parameter name="source" transfer-ownership="none">
+            <doc xml:space="preserve" filename="../subprojects/gst-editing-services/ges/ges-discoverer-manager.c">The source #GstElement to setup</doc>
+            <type name="Gst.Element"/>
+          </parameter>
+        </parameters>
+      </glib:signal>
     </class>
     <record name="DiscovererManagerClass" c:type="GESDiscovererManagerClass" glib:is-gtype-struct-for="DiscovererManager">
       <source-position filename="../subprojects/gst-editing-services/ges/ges-discoverer-manager.h"/>
diff --git a/subprojects/gst-editing-services/ges/ges-discoverer-manager.c b/subprojects/gst-editing-services/ges/ges-discoverer-manager.c
index 1a67d2dbfd..804de14366 100644
--- a/subprojects/gst-editing-services/ges/ges-discoverer-manager.c
+++ b/subprojects/gst-editing-services/ges/ges-discoverer-manager.c
@@ -31,6 +31,7 @@ enum
 enum
 {
   LOAD_SERIALIZED_INFO_SIGNAL,
+  DISCOVERER_SOURCE_SETUP,
   DISCOVERER_SIGNAL,
   N_SIGNALS
 };
@@ -154,6 +155,19 @@ ges_discoverer_manager_class_init (GESDiscovererManagerClass * klass)
       G_SIGNAL_RUN_LAST,
       0, NULL, NULL, NULL, GST_TYPE_DISCOVERER_INFO, 1, G_TYPE_STRING);
 
+  /**
+   * GESDiscovererManager::source-setup:
+   * @manager: the #GESDiscovererManager
+   * @source: The source #GstElement to setup
+   *
+   * Allows to setup the source element before the discoverer runs.
+   *
+   * Since: 1.24
+   */
+  signals[DISCOVERER_SOURCE_SETUP] =
+      g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
+
   /**
    * GESDiscovererManager::discovered: (attributes doc.skip=true)
    * @manager: the #GESDiscovererManager
@@ -285,6 +299,12 @@ proxy_load_serialized_info_cb (GESDiscovererManager * self, const gchar * uri)
   return info;
 }
 
+static void
+source_setup_cb (GESDiscovererManager * self, GstElement * source)
+{
+  g_signal_emit (self, signals[DISCOVERER_SOURCE_SETUP], 0, source);
+}
+
 static void
 proxy_discovered_cb (GESDiscovererManager * self,
     GstDiscovererInfo * info, GError * err, gpointer user_data)
@@ -301,6 +321,8 @@ create_discoverer (GESDiscovererManager * self)
   discoverer = gst_discoverer_new (self->timeout, NULL);
   g_signal_connect_swapped (discoverer, "load-serialized-info",
       G_CALLBACK (proxy_load_serialized_info_cb), self);
+  g_signal_connect_swapped (discoverer, "source-setup",
+      G_CALLBACK (source_setup_cb), self);
   g_signal_connect_swapped (discoverer, "discovered",
       G_CALLBACK (proxy_discovered_cb), self);
   g_object_set (discoverer, "use-cache", self->use_cache, NULL);