gstreamer/testsuite/caps/fixed.c

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/* 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>
gint
main (gint argc, gchar *argv[])
{
GstCaps *caps;
GstProps *props;
GstPropsEntry *entry;
gst_init (&argc, &argv);
caps = GST_CAPS_NEW (
"testcaps",
"unkown/unknown",
NULL);
/* newly crrated caps without props is fixed */
g_assert (GST_CAPS_IS_FIXED (caps));
entry = gst_props_entry_new ("foo", GST_PROPS_INT (5));
/* this entry is fixed */
g_assert (gst_props_entry_is_fixed (entry));
props = gst_props_empty_new ();
/* props are fixed when created */
g_assert (GST_PROPS_IS_FIXED (props));
gst_props_add_entry (props, entry);
/* props should still be fixed */
g_assert (GST_PROPS_IS_FIXED (props));
gst_caps_set_props (caps, props);
/* caps should still be fixed */
g_assert (GST_CAPS_IS_FIXED (caps));
entry = gst_props_entry_new ("bar", GST_PROPS_INT_RANGE (1, 5));
/* this entry is variable */
g_assert (!gst_props_entry_is_fixed (entry));
gst_props_add_entry (props, entry);
/* props should be variable now */
g_assert (!GST_PROPS_IS_FIXED (props));
/* caps too */
g_assert (!GST_CAPS_IS_FIXED (caps));
gst_props_remove_entry_by_name (props, "bar");
/* props should be fixed again now */
g_assert (GST_PROPS_IS_FIXED (props));
/* caps too */
g_assert (GST_CAPS_IS_FIXED (caps));
gst_props_set (props, "foo", GST_PROPS_INT_RANGE (1,5));
/* props should be variable again now */
g_assert (!GST_PROPS_IS_FIXED (props));
/* caps too */
g_assert (!GST_CAPS_IS_FIXED (caps));
gst_props_set (props, "foo", GST_PROPS_INT (5));
/* props should be fixed again now */
g_assert (GST_PROPS_IS_FIXED (props));
/* caps too */
g_assert (GST_CAPS_IS_FIXED (caps));
return 0;
}