mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-06-09 01:29:28 +00:00
5529bbc7dc
Original commit message from CVS: first pass of connect->link gst-plugins and other stuff compiles without change at this point
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/* 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>
|
|
|
|
static GstElement*
|
|
make_bin (gint count)
|
|
{
|
|
GstElement *bin;
|
|
GstElement *src;
|
|
char *name;
|
|
|
|
name = g_strdup_printf ("bin%d", count);
|
|
bin = gst_bin_new (name);
|
|
g_free (name);
|
|
|
|
name = g_strdup_printf ("fakesrc%d", count);
|
|
src = gst_element_factory_make ("fakesrc", name);
|
|
g_free (name);
|
|
|
|
gst_bin_add (GST_BIN (bin), src);
|
|
|
|
gst_element_add_ghost_pad (bin, gst_element_get_pad (src, "src"), "src");
|
|
|
|
return bin;
|
|
}
|
|
|
|
static void
|
|
property_change_callback (GObject *object, GstObject *orig, GParamSpec *pspec, gpointer data)
|
|
{
|
|
GValue value = { 0, }; /* the important thing is that value.type = 0 */
|
|
gchar *str = 0;
|
|
|
|
if (pspec->flags & G_PARAM_READABLE) {
|
|
/* let's not print these out for excluded properties... */
|
|
g_value_init(&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
|
g_object_get_property (G_OBJECT (orig), pspec->name, &value);
|
|
str = g_strdup_value_contents (&value);
|
|
g_print ("%s: %s = %s\n", GST_OBJECT_NAME (orig), pspec->name, str);
|
|
g_free (str);
|
|
g_value_unset(&value);
|
|
} else {
|
|
g_warning ("Parameter not readable. What's up with that?");
|
|
}
|
|
}
|
|
|
|
gint
|
|
main (gint argc, gchar *argv[])
|
|
{
|
|
GstElement *pipeline;
|
|
GstElement *aggregator, *sink;
|
|
GstElement *bin1, *bin2;
|
|
GstPad *pad1, *pad2;
|
|
gint i;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
pipeline = gst_pipeline_new ("main");
|
|
g_signal_connect (pipeline, "deep_notify", G_CALLBACK (property_change_callback), NULL);
|
|
|
|
aggregator = gst_element_factory_make ("aggregator", "mixer");
|
|
sink = gst_element_factory_make ("fakesink", "sink");
|
|
|
|
gst_bin_add (GST_BIN (pipeline), aggregator);
|
|
gst_bin_add (GST_BIN (pipeline), sink);
|
|
|
|
gst_element_link_pads (aggregator, "src", sink, "sink");
|
|
|
|
bin1 = make_bin (1);
|
|
pad1 = gst_element_get_request_pad (aggregator, "sink%d");
|
|
gst_pad_link (gst_element_get_pad (bin1, "src"), pad1);
|
|
gst_bin_add (GST_BIN (pipeline), bin1);
|
|
|
|
bin2 = make_bin (2);
|
|
pad2 = gst_element_get_request_pad (aggregator, "sink%d");
|
|
gst_pad_link (gst_element_get_pad (bin2, "src"), pad2);
|
|
gst_bin_add (GST_BIN (pipeline), bin2);
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
i = 2;
|
|
while (i--)
|
|
gst_bin_iterate (GST_BIN (pipeline));
|
|
|
|
g_print ("pause bin1\n");
|
|
gst_element_set_state (bin1, GST_STATE_PAUSED);
|
|
gst_pad_set_active (pad1, FALSE);
|
|
|
|
i = 4;
|
|
while (i--)
|
|
gst_bin_iterate (GST_BIN (pipeline));
|
|
|
|
g_print ("playing bin1\n");
|
|
gst_pad_set_active (pad1, TRUE);
|
|
gst_element_set_state (bin1, GST_STATE_PLAYING);
|
|
|
|
i = 4;
|
|
while (i--)
|
|
gst_bin_iterate (GST_BIN (pipeline));
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
|
|
|
return 0;
|
|
}
|