mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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5529bbc7dc
Original commit message from CVS: first pass of connect->link gst-plugins and other stuff compiles without change at this point
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gst/gst.h>
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static GstElement*
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make_bin (gint count)
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{
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GstElement *bin;
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GstElement *src;
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char *name;
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name = g_strdup_printf ("bin%d", count);
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bin = gst_bin_new (name);
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g_free (name);
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name = g_strdup_printf ("fakesrc%d", count);
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src = gst_element_factory_make ("fakesrc", name);
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g_free (name);
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gst_bin_add (GST_BIN (bin), src);
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gst_element_add_ghost_pad (bin, gst_element_get_pad (src, "src"), "src");
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return bin;
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}
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static void
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property_change_callback (GObject *object, GstObject *orig, GParamSpec *pspec, gpointer data)
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{
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GValue value = { 0, }; /* the important thing is that value.type = 0 */
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gchar *str = 0;
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if (pspec->flags & G_PARAM_READABLE) {
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/* let's not print these out for excluded properties... */
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g_value_init(&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
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g_object_get_property (G_OBJECT (orig), pspec->name, &value);
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str = g_strdup_value_contents (&value);
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g_print ("%s: %s = %s\n", GST_OBJECT_NAME (orig), pspec->name, str);
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g_free (str);
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g_value_unset(&value);
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} else {
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g_warning ("Parameter not readable. What's up with that?");
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}
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}
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gint
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main (gint argc, gchar *argv[])
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{
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GstElement *pipeline;
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GstElement *aggregator, *sink;
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GstElement *bin1, *bin2;
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GstPad *pad1, *pad2;
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gint i;
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gst_init (&argc, &argv);
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pipeline = gst_pipeline_new ("main");
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g_signal_connect (pipeline, "deep_notify", G_CALLBACK (property_change_callback), NULL);
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aggregator = gst_element_factory_make ("aggregator", "mixer");
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sink = gst_element_factory_make ("fakesink", "sink");
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gst_bin_add (GST_BIN (pipeline), aggregator);
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gst_bin_add (GST_BIN (pipeline), sink);
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gst_element_link_pads (aggregator, "src", sink, "sink");
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bin1 = make_bin (1);
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pad1 = gst_element_get_request_pad (aggregator, "sink%d");
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gst_pad_link (gst_element_get_pad (bin1, "src"), pad1);
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gst_bin_add (GST_BIN (pipeline), bin1);
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bin2 = make_bin (2);
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pad2 = gst_element_get_request_pad (aggregator, "sink%d");
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gst_pad_link (gst_element_get_pad (bin2, "src"), pad2);
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gst_bin_add (GST_BIN (pipeline), bin2);
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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i = 2;
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while (i--)
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gst_bin_iterate (GST_BIN (pipeline));
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g_print ("pause bin1\n");
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gst_element_set_state (bin1, GST_STATE_PAUSED);
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gst_pad_set_active (pad1, FALSE);
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i = 4;
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while (i--)
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gst_bin_iterate (GST_BIN (pipeline));
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g_print ("playing bin1\n");
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gst_pad_set_active (pad1, TRUE);
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gst_element_set_state (bin1, GST_STATE_PLAYING);
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i = 4;
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while (i--)
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gst_bin_iterate (GST_BIN (pipeline));
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gst_element_set_state (pipeline, GST_STATE_NULL);
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return 0;
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}
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