check in single transition demo

2025-01-11 01:45:33 +00:00 · 2010-05-24 17:39:07 +02:00 · 2010-05-24 17:39:07 +02:00 · bd28d788f0
commit bd28d788f0
parent 3cc23d98ea
1 changed files with 138 additions and 0 deletions
--- a/tests/examples/transition.c
+++ b/tests/examples/transition.c
@ -0,0 +1,138 @@
+/* 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 <ges/ges.h>
+
+typedef struct
+{
+  int type;
+  char *name;
+} transition_type;
+
+transition_type transitions[] = {
+  {-1, "fade"},
+  {0, "wipe_ltr"},
+  {1, "wipe_ttb"},
+};
+
+#define N_TRANSITIONS 3
+#define INVALID_TRANSITION -2
+
+int
+transition_for_name (char *name)
+{
+  return -1;
+}
+
+void
+notify_max_duration_cb (GObject * object)
+{
+  g_print ("got here\n");
+}
+
+int
+main (int argc, char **argv)
+{
+  GError *err = NULL;
+  GOptionContext *ctx;
+  GESTimelinePipeline *pipeline;
+  GESTimeline *timeline;
+  GESTrack *trackv;
+  GESTimelineLayer *layer1;
+  GESTimelineFileSource *srca, *srcb;
+  GESCustomTimelineSource *src;
+  GMainLoop *mainloop;
+  gint type;
+  gchar *uri = NULL;
+  gdouble transition_duration;
+
+  GOptionEntry options[] = {
+    {"type", 't', 0, G_OPTION_ARG_INT, &type,
+        "type of transition to create (smpte numeric)", "<smpte" "transition>"},
+    {"duration", 'd', 0, G_OPTION_ARG_INT, &transition_duration,
+        "duration of transition", "seconds"},
+    {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 < 2) {
+    g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
+    exit (0);
+  }
+
+  g_option_context_free (ctx);
+
+  ges_init ();
+
+  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);
+
+  layer1 = GES_TIMELINE_LAYER (ges_timeline_layer_new ());
+  g_object_set (layer1, "priority", 1, NULL);
+
+  if (!ges_timeline_add_layer (timeline, layer1))
+    return -1;
+
+  uri = g_strdup_printf ("file://%s", argv[1]);
+  srca = ges_timeline_filesource_new (uri);
+
+  guint64 aduration = (guint64) (atof (argv[2]) * GST_SECOND);
+  g_object_set (srca, "start", 0, "duration", aduration, NULL);
+  g_signal_connect (srca, "notify::max_duration",
+      G_CALLBACK (notify_max_duration_cb), NULL);
+
+  g_free (uri);
+
+  uri = g_strdup_printf ("file://%s", argv[3]);
+  srcb = ges_timeline_filesource_new (uri);
+  guint64 bduration = (guint64) (atof (argv[4]) * GST_SECOND);
+  g_object_set (srcb, "start", aduration, "duration", bduration, NULL);
+  g_signal_connect (srcb, "notify::max_duration",
+      G_CALLBACK (notify_max_duration_cb), NULL);
+
+  g_free (uri);
+
+  ges_timeline_layer_add_object (layer1, GES_TIMELINE_OBJECT (srca));
+  ges_timeline_layer_add_object (layer1, GES_TIMELINE_OBJECT (srcb));
+
+  mainloop = g_main_loop_new (NULL, FALSE);
+  g_timeout_add_seconds (((aduration + bduration) / GST_SECOND) + 1,
+      (GSourceFunc) g_main_loop_quit, mainloop);
+  gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
+  g_main_loop_run (mainloop);
+
+  return 0;
+}