From b752eea81892a971bbb6a585c2a97fd3555dd8d1 Mon Sep 17 00:00:00 2001
From: Thibault Saunier <tsaunier@gnome.org>
Date: Wed, 13 Aug 2014 13:15:02 +0200
Subject: [PATCH] timeline: Add a method to retrieve a pad from a track

It allows user to easily get the proxied pad from a track.

API:
  + ges_timeline_get_pad_for_track
---
 docs/libs/ges-sections.txt |  1 +
 ges/ges-timeline.c         | 33 +++++++++++++++++++++++++++++++++
 ges/ges-timeline.h         |  1 +
 3 files changed, 35 insertions(+)

diff --git a/docs/libs/ges-sections.txt b/docs/libs/ges-sections.txt
index c2ac4aa8b1..68a328dc9a 100644
--- a/docs/libs/ges-sections.txt
+++ b/docs/libs/ges-sections.txt
@@ -363,6 +363,7 @@ ges_timeline_is_updating
 ges_timeline_get_tracks
 ges_timeline_get_layers
 ges_timeline_get_track_for_pad
+ges_timeline_get_pad_for_track
 ges_timeline_get_duration
 ges_timeline_get_project
 ges_timeline_get_auto_transition
diff --git a/ges/ges-timeline.c b/ges/ges-timeline.c
index ec605a44da..37c0f41fea 100644
--- a/ges/ges-timeline.c
+++ b/ges/ges-timeline.c
@@ -2961,6 +2961,39 @@ ges_timeline_get_track_for_pad (GESTimeline * timeline, GstPad * pad)
   return NULL;
 }
 
+/**
+ * ges_timeline_get_pad_for_track:
+ * @timeline: The #GESTimeline
+ * @track: The #GESTrack
+ *
+ * Search the #GstPad corresponding to the given @timeline's @track.
+ *
+ * Returns: (transfer none): The corresponding #GstPad if it is found,
+ * or %NULL if there is an error.
+ */
+
+GstPad *
+ges_timeline_get_pad_for_track (GESTimeline * timeline, GESTrack * track)
+{
+  GList *tmp;
+
+  LOCK_DYN (timeline);
+  for (tmp = timeline->priv->priv_tracks; tmp; tmp = g_list_next (tmp)) {
+    TrackPrivate *tr_priv = (TrackPrivate *) tmp->data;
+
+    if (track == tr_priv->track) {
+      if (tr_priv->ghostpad)
+        gst_object_ref (tr_priv->ghostpad);
+
+      UNLOCK_DYN (timeline);
+      return tr_priv->ghostpad;
+    }
+  }
+  UNLOCK_DYN (timeline);
+
+  return NULL;
+}
+
 /**
  * ges_timeline_get_tracks:
  * @timeline: a #GESTimeline
diff --git a/ges/ges-timeline.h b/ges/ges-timeline.h
index 80ddea6579..f1d2bf811d 100644
--- a/ges/ges-timeline.h
+++ b/ges/ges-timeline.h
@@ -114,6 +114,7 @@ gboolean ges_timeline_add_track (GESTimeline *timeline, GESTrack *track);
 gboolean ges_timeline_remove_track (GESTimeline *timeline, GESTrack *track);
 
 GESTrack * ges_timeline_get_track_for_pad (GESTimeline *timeline, GstPad *pad);
+GstPad * ges_timeline_get_pad_for_track (GESTimeline * timeline, GESTrack *track);
 GList *ges_timeline_get_tracks (GESTimeline *timeline);
 
 gboolean ges_timeline_commit (GESTimeline * timeline);