gst/playback/: Make playbin async, it'll commit state to paused when all streams are detected.

Original commit message from CVS:
* gst/playback/Makefile.am:
* gst/playback/gstdecodebin.c: (gst_decode_bin_init),
(gst_decode_bin_dispose), (dynamic_create), (dynamic_free),
(free_dynamics), (pad_unblocked), (pad_blocked), (close_pad_link),
(try_to_link_1), (new_pad), (no_more_pads), (type_found),
(gst_decode_bin_change_state):
* gst/playback/gstplaybin.c: (gst_play_bin_class_init),
(gst_play_bin_send_event_to_sink):
* gst/playback/test5.c: (new_pad), (no_more_pads), (start_finding),
(dump_element_stats), (main):
* gst/playback/test6.c: (main):
Make playbin async, it'll commit state to paused when all streams
are detected.
Remove ugly hack.
Added test6.c to show async behaviour.

1 files changed, 92 insertions, 0 deletions

diff --git a/gst/playback/test6.c b/gst/playback/test6.c
new file mode 100644
index 000000000..6ca4c598d
--- /dev/null
+++ b/gst/playback/test6.c
@@ -0,0 +1,92 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.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 <unistd.h>
+#include <gst/gst.h>
+
+gint
+main (gint argc, gchar * argv[])
+{
+  GstElement *pipeline, *filesrc, *decodebin;
+  GstStateChangeReturn res;
+  GstIterator *it;
+  gpointer data;
+
+  gst_init (&argc, &argv);
+
+  pipeline = gst_pipeline_new ("pipeline");
+
+  filesrc = gst_element_factory_make ("filesrc", "filesrc");
+  g_assert (filesrc);
+
+  decodebin = gst_element_factory_make ("decodebin", "decodebin");
+  g_assert (decodebin);
+
+  gst_bin_add_many (GST_BIN (pipeline), filesrc, decodebin, NULL);
+  gst_element_link (filesrc, decodebin);
+
+  if (argc < 2) {
+    g_print ("usage: %s <uri>\n", argv[0]);
+    exit (-1);
+  }
+  g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
+
+  g_print ("pause..\n");
+  res = gst_element_set_state (pipeline, GST_STATE_PAUSED);
+  if (res == GST_STATE_CHANGE_FAILURE) {
+    g_print ("could not pause\n");
+    exit (-1);
+  }
+  g_print ("waiting..\n");
+  res = gst_element_get_state (pipeline, NULL, NULL, GST_CLOCK_TIME_NONE);
+  if (res != GST_STATE_CHANGE_SUCCESS) {
+    g_print ("could not complete pause\n");
+    exit (-1);
+  }
+  g_print ("stats..\n");
+
+  it = gst_element_iterate_src_pads (decodebin);
+  while (gst_iterator_next (it, &data) == GST_ITERATOR_OK) {
+    GstPad *pad = GST_PAD (data);
+    GstCaps *caps;
+    gchar *str;
+    GstQuery *query;
+
+    g_print ("stream %s:\n", GST_OBJECT_NAME (pad));
+
+    caps = gst_pad_get_caps (pad);
+    str = gst_caps_to_string (caps);
+    g_print (" caps: %s\n", str);
+    g_free (str);
+
+    query = gst_query_new_position (GST_FORMAT_TIME);
+    if (gst_pad_query (pad, query)) {
+      gint64 duration;
+
+      gst_query_parse_position (query, NULL, NULL, &duration);
+
+      g_print (" duration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (duration));
+    }
+    gst_query_unref (query);
+
+    gst_object_unref (pad);
+  }
+  gst_iterator_free (it);
+
+  return 0;
+}