check in text properties example

tests/examples/Makefile.am

@@ -7,7 +7,8 @@ noinst_PROGRAMS = 	\
 	test4		\
 	transition\
 	thumbnails\
-	overlays
+	overlays\
+	text_properties
 
 AM_CFLAGS =  -I$(top_srcdir) $(GST_PROFILE_CFLAGS) $(GST_DISCOVERER_CFLAGS) $(GST_CFLAGS)
 LDADD = $(top_builddir)/ges/libges-@GST_MAJORMINOR@.la -lges-@GST_MAJORMINOR@ -lgstdiscoverer-@GST_MAJORMINOR@ $(GST_DISCOVERER_LIBS) $(GST_LIBS) 

tests/examples/text_properties.c

@@ -0,0 +1,166 @@
+/* GStreamer Editing Services
+ * Copyright (C) 2010 Brandon Lewis <brandon@alum.berkeley.edu>
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+#include <ges/ges.h>
+
+typedef struct
+{
+  int type;
+  char *name;
+} transition_type;
+
+GESTimelineObject *make_source (char *path, guint64 start, guint64 duration,
+    gint priority, gchar * text);
+
+gboolean print_transition_data (GESTimelineObject * tr);
+
+GESTimelinePipeline *make_timeline (char *path, float duration, char *text);
+
+GESTimelineObject *
+make_source (char *path, guint64 start, guint64 duration, gint priority,
+    gchar * text)
+{
+  char *uri = g_strdup_printf ("file://%s", path);
+
+  GESTimelineObject *ret =
+      GES_TIMELINE_OBJECT (ges_timeline_filesource_new (uri));
+
+  g_object_set (ret,
+      "start", (guint64) start,
+      "duration", (guint64) duration,
+      "priority", (guint32) priority, "in-point", (guint64) 0,
+      "text", text, NULL);
+
+  g_free (uri);
+
+  return ret;
+}
+
+gboolean
+print_transition_data (GESTimelineObject * tr)
+{
+  GESTrackObject *trackobj;
+  GstElement *gnlobj;
+  guint64 start, duration;
+  gint priority;
+  char *name;
+
+  if (!tr)
+    return FALSE;
+
+  trackobj = GES_TRACK_OBJECT (tr->trackobjects->data);
+  gnlobj = trackobj->gnlobject;
+
+  g_object_get (gnlobj, "start", &start, "duration", &duration,
+      "priority", &priority, "name", &name, NULL);
+  g_print ("gnlobject for %s: %f %f %d\n", name,
+      ((gfloat) start) / GST_SECOND,
+      ((gfloat) duration) / GST_SECOND, priority);
+
+  return FALSE;
+}
+
+GESTimelinePipeline *
+make_timeline (char *path, float duration, char *text)
+{
+  GESTimeline *timeline;
+  GESTrack *trackv, *tracka;
+  GESTimelineLayer *layer1;
+  GESTimelineObject *srca;
+  GESTimelinePipeline *pipeline;
+  guint64 aduration;
+
+  pipeline = ges_timeline_pipeline_new ();
+
+  ges_timeline_pipeline_set_mode (pipeline, TIMELINE_MODE_PREVIEW_VIDEO);
+
+  timeline = ges_timeline_new ();
+  ges_timeline_pipeline_add_timeline (pipeline, timeline);
+
+  trackv = ges_track_video_raw_new ();
+  ges_timeline_add_track (timeline, trackv);
+
+  tracka = ges_track_audio_raw_new ();
+  ges_timeline_add_track (timeline, tracka);
+
+  layer1 = GES_TIMELINE_LAYER (ges_timeline_layer_new ());
+  g_object_set (layer1, "priority", (gint32) 0, NULL);
+
+  if (!ges_timeline_add_layer (timeline, layer1))
+    exit (-1);
+
+  aduration = (guint64) (duration * GST_SECOND);
+  srca = make_source (path, 0, aduration, 1, text);
+  ges_timeline_layer_add_object (layer1, srca);
+
+  return pipeline;
+}
+
+int
+main (int argc, char **argv)
+{
+  GError *err = NULL;
+  GOptionContext *ctx;
+  GESTimelinePipeline *pipeline;
+  GMainLoop *mainloop;
+  gdouble duration;
+  char *path, *text;
+
+  GOptionEntry options[] = {
+    {"duration", 'd', 0, G_OPTION_ARG_DOUBLE, &duration,
+        "duration of transition", "seconds"},
+    {"path", 'p', 0, G_OPTION_ARG_STRING, &path,
+        "path to file", "path"},
+    {"text", 't', 0, G_OPTION_ARG_STRING, &text,
+        "text to render", "text"},
+    {NULL}
+  };
+
+  if (!g_thread_supported ())
+    g_thread_init (NULL);
+
+  ctx = g_option_context_new ("- transition between two media files");
+  g_option_context_add_main_entries (ctx, options, NULL);
+  g_option_context_add_group (ctx, gst_init_get_option_group ());
+
+  if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
+    g_print ("Error initializing %s\n", err->message);
+    exit (1);
+  }
+
+  if (argc > 1) {
+    g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
+    exit (0);
+  }
+
+  g_option_context_free (ctx);
+
+  ges_init ();
+
+  pipeline = make_timeline (path, duration, text);
+
+  mainloop = g_main_loop_new (NULL, FALSE);
+  g_timeout_add_seconds ((duration) + 1, (GSourceFunc) g_main_loop_quit,
+      mainloop);
+  gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
+  g_main_loop_run (mainloop);
+
+  return 0;
+}