gst/playback/: More playbin fixes. Added README. Do better element filtering.

Original commit message from CVS:
* gst/playback/Makefile.am:
* gst/playback/README:
* gst/playback/gstdecodebin.c: (gst_decode_bin_get_type),
(gst_decode_bin_class_init), (gst_decode_bin_factory_filter),
(compare_ranks), (print_feature), (gst_decode_bin_init),
(gst_decode_bin_dispose), (find_compatibles), (close_pad_link),
(try_to_link_1), (new_pad), (close_link), (type_found),
(gst_decode_bin_set_property), (gst_decode_bin_get_property),
(plugin_init):
* gst/playback/gstplaybasebin.c: (gst_play_base_bin_get_type),
(gst_play_base_bin_class_init), (gst_play_base_bin_init),
(gst_play_base_bin_dispose), (rebuild_pipeline), (queue_overrun),
(gen_preroll_element), (no_more_pads), (new_stream),
(setup_source), (gst_play_base_bin_set_property),
(gst_play_base_bin_get_property), (gst_play_base_bin_change_state),
(gst_play_base_bin_add_element),
(gst_play_base_bin_remove_element),
(gst_play_base_bin_mute_stream), (gst_play_base_bin_link_stream),
(gst_play_base_bin_unlink_stream),
(gst_play_base_bin_get_streaminfo):
* gst/playback/gstplaybasebin.h:
* gst/playback/gstplaybin.c: (gst_play_bin_get_type),
(gst_play_bin_class_init), (gst_play_bin_init),
(gst_play_bin_dispose), (gst_play_bin_set_property),
(gst_play_bin_get_property), (gen_video_element),
(gen_audio_element), (setup_sinks), (gst_play_bin_change_state),
(gst_play_bin_get_event_masks), (gst_play_bin_send_event),
(gst_play_bin_get_formats), (gst_play_bin_convert),
(gst_play_bin_get_query_types), (gst_play_bin_query),
(plugin_init):
* gst/playback/gststreaminfo.c: (gst_stream_type_get_type),
(gst_stream_info_get_type), (gst_stream_info_class_init),
(gst_stream_info_init), (gst_stream_info_new),
(gst_stream_info_dispose), (gst_stream_info_set_property),
(gst_stream_info_get_property):
* gst/playback/gststreaminfo.h:
* gst/playback/test.c: (gen_video_element), (gen_audio_element),
(main):
* gst/playback/test2.c: (main):
* gst/playback/test3.c: (update_scale), (main):
More playbin fixes. Added README. Do better element filtering.
Added base class to preroll media. Added test apps.

1 files changed, 62 insertions, 0 deletions

diff --git a/gst/playback/test3.c b/gst/playback/test3.c
new file mode 100644
index 000000000..a4c64f1ba
--- /dev/null
+++ b/gst/playback/test3.c
@@ -0,0 +1,62 @@
+/* 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 <gst/gst.h>
+
+#define UPDATE_INTERVAL 500
+
+static gboolean
+update_scale (GstElement * element)
+{
+  guint64 duration;
+  guint64 position;
+  GstFormat format = GST_FORMAT_TIME;
+
+  gst_element_query (element, GST_QUERY_TOTAL, &format, &duration);
+  gst_element_query (element, GST_QUERY_POSITION, &format, &position);
+
+  g_print ("%lld %lld\n", duration, position);
+
+  return TRUE;
+}
+
+gint
+main (gint argc, gchar * argv[])
+{
+  GstElement *player;
+  GstElementStateReturn res;
+
+  gst_init (&argc, &argv);
+
+  player = gst_element_factory_make ("playbin", "player");
+  g_assert (player);
+
+  g_object_set (G_OBJECT (player), "uri", argv[1], NULL);
+
+  res = gst_element_set_state (player, GST_STATE_PLAYING);
+  if (res != GST_STATE_SUCCESS) {
+    g_print ("could not play\n");
+    return -1;
+  }
+
+  g_timeout_add (UPDATE_INTERVAL, (GSourceFunc) update_scale, player);
+
+  gst_main ();
+
+  return 0;
+}