From ae6ac876b12e2084f77dd82486198f07420fe3f5 Mon Sep 17 00:00:00 2001
From: Edward Hervey <edward.hervey@collabora.co.uk>
Date: Tue, 8 Sep 2009 18:49:22 +0200
Subject: [PATCH] GESTrack: Add TrackType enum and constructor property.

This allows us to speed up detection of track content type.
---
 ges/ges-track.c | 47 ++++++++++++++++++++++++++++++++++++++++++-----
 ges/ges-track.h | 24 +++++++++++++++++++++++-
 2 files changed, 65 insertions(+), 6 deletions(-)

diff --git a/ges/ges-track.c b/ges/ges-track.c
index 27aba3a..f6f9dab 100644
--- a/ges/ges-track.c
+++ b/ges/ges-track.c
@@ -34,7 +34,8 @@ G_DEFINE_TYPE (GESTrack, ges_track, GST_TYPE_BIN);
 enum
 {
   ARG_0,
-  ARG_CAPS
+  ARG_CAPS,
+  ARG_TYPE
 };
 
 static void pad_added_cb (GstElement * element, GstPad * pad, GESTrack * track);
@@ -42,6 +43,31 @@ static void pad_added_cb (GstElement * element, GstPad * pad, GESTrack * track);
 static void
 pad_removed_cb (GstElement * element, GstPad * pad, GESTrack * track);
 
+#define C_ENUM(v) ((gint) v)
+static void
+register_ges_track_type_select_result (GType * id)
+{
+  static const GEnumValue values[] = {
+    {C_ENUM (GES_TRACK_TYPE_AUDIO), "GES_TRACK_TYPE_AUDIO", "audio"},
+    {C_ENUM (GES_TRACK_TYPE_VIDEO), "GES_TRACK_TYPE_VIDEO", "video"},
+    {C_ENUM (GES_TRACK_TYPE_TEXT), "GES_TRACK_TYPE_TEXT", "text"},
+    {C_ENUM (GES_TRACK_TYPE_CUSTOM), "GES_TRACK_TYPE_CUSTOM", "custom"},
+    {0, NULL, NULL}
+  };
+
+  *id = g_enum_register_static ("GESTrackType", values);
+}
+
+GType
+ges_track_type_get_type (void)
+{
+  static GType id;
+  static GOnce once = G_ONCE_INIT;
+
+  g_once (&once, (GThreadFunc) register_ges_track_type_select_result, &id);
+  return id;
+}
+
 static void
 ges_track_get_property (GObject * object, guint property_id,
     GValue * value, GParamSpec * pspec)
@@ -52,6 +78,9 @@ ges_track_get_property (GObject * object, guint property_id,
     case ARG_CAPS:
       gst_value_set_caps (value, track->caps);
       break;
+    case ARG_TYPE:
+      g_value_set_enum (value, track->type);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
   }
@@ -67,6 +96,9 @@ ges_track_set_property (GObject * object, guint property_id,
     case ARG_CAPS:
       ges_track_set_caps (track, gst_value_get_caps (value));
       break;
+    case ARG_TYPE:
+      track->type = g_value_get_enum (value);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
   }
@@ -107,6 +139,11 @@ ges_track_class_init (GESTrackClass * klass)
       g_param_spec_boxed ("caps", "Caps",
           "Caps used to filter/choose the output stream",
           GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+  g_object_class_install_property (object_class, ARG_TYPE,
+      g_param_spec_enum ("track-type", "TrackType",
+          "Type of stream the track outputs",
+          GES_TYPE_TRACK_TYPE, GES_TRACK_TYPE_CUSTOM,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 }
 
 static void
@@ -124,9 +161,9 @@ ges_track_init (GESTrack * self)
 }
 
 GESTrack *
-ges_track_new (GstCaps * caps)
+ges_track_new (GESTrackType type, GstCaps * caps)
 {
-  return g_object_new (GES_TYPE_TRACK, "caps", caps, NULL);
+  return g_object_new (GES_TYPE_TRACK, "caps", caps, "track-type", type, NULL);
 }
 
 GESTrack *
@@ -135,7 +172,7 @@ ges_track_video_raw_new ()
   GESTrack *track;
   GstCaps *caps = gst_caps_from_string ("video/x-raw-yuv;video/x-raw-rgb");
 
-  track = ges_track_new (caps);
+  track = ges_track_new (GES_TRACK_TYPE_VIDEO, caps);
   gst_caps_unref (caps);
 
   return track;
@@ -147,7 +184,7 @@ ges_track_audio_raw_new ()
   GESTrack *track;
   GstCaps *caps = gst_caps_from_string ("audio/x-raw-int;audio/x-raw-float");
 
-  track = ges_track_new (caps);
+  track = ges_track_new (GES_TRACK_TYPE_AUDIO, caps);
   gst_caps_unref (caps);
 
   return track;
diff --git a/ges/ges-track.h b/ges/ges-track.h
index ccf808b..ccc4682 100644
--- a/ges/ges-track.h
+++ b/ges/ges-track.h
@@ -43,10 +43,32 @@ G_BEGIN_DECLS
 #define GES_TRACK_GET_CLASS(obj) \
   (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TRACK, GESTrackClass))
 
+
+#define GES_TYPE_TRACK_TYPE (ges_track_type_get_type ())
+GType ges_track_type_get_type (void);
+
+/**
+ * GESTrackType:
+ * @GES_TRACK_TYPE_AUDIO: An audio track
+ * @GES_TRACK_TYPE_VIDEO: A video track
+ * @GES_TRACK_TYPE_TEXT: A text (subtitle) track
+ * @GES_TRACK_TYPE_CUSTOM: A custom-content track
+ *
+ * Types of content handled by a track.
+ */
+
+typedef enum {
+  GES_TRACK_TYPE_AUDIO	= 0,
+  GES_TRACK_TYPE_VIDEO	= 1,
+  GES_TRACK_TYPE_TEXT	= 2,
+  GES_TRACK_TYPE_CUSTOM	= 3
+} GESTrackType;
+
 struct _GESTrack {
   GstBin parent;
 
   GESTimeline * timeline;
+  GESTrackType type;
 
   GstCaps * caps;
 
@@ -60,7 +82,7 @@ struct _GESTrackClass {
 
 GType ges_track_get_type (void);
 
-GESTrack* ges_track_new (GstCaps * caps);
+GESTrack* ges_track_new (GESTrackType type, GstCaps * caps);
 
 void ges_track_set_timeline (GESTrack * track, GESTimeline *timeline);
 void ges_track_set_caps (GESTrack * track, const GstCaps * caps);
-- 
2.7.4