gstreamer/tests/examples/xml/createxml.c

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#include <stdlib.h>
#include <gst/gst.h>
gboolean playing;
static void
object_saved (GstObject * object, xmlNodePtr parent, gpointer data)
{
xmlNodePtr child;
xmlNsPtr ns;
/* first see if the namespace is already known */
ns = xmlSearchNsByHref (parent->doc, parent,
(xmlChar *) "http://gstreamer.net/gst-test/1.0/");
if (ns == NULL) {
xmlNodePtr root = xmlDocGetRootElement (parent->doc);
/* add namespace to root node */
ns = xmlNewNs (root, (xmlChar *) "http://gstreamer.net/gst-test/1.0/",
(xmlChar *) "test");
}
child = xmlNewChild (parent, ns, (xmlChar *) "comment", NULL);
xmlNewChild (child, NULL, (xmlChar *) "text", (xmlChar *) data);
}
int
main (int argc, char *argv[])
{
GstElement *filesrc, *osssink, *queue, *queue2, *decode;
GstElement *pipeline;
GstElement *thread, *thread2;
gst_init (&argc, &argv);
if (argc != 2) {
g_print ("usage: %s <filename>\n", argv[0]);
exit (-1);
}
/* create new threads to hold the elements */
thread = gst_element_factory_make ("thread", "thread");
g_assert (thread != NULL);
thread2 = gst_element_factory_make ("thread", "thread2");
g_assert (thread2 != NULL);
/* these signals will allow us to save custom tags with the gst xml output */
g_signal_connect (G_OBJECT (thread), "object_saved",
G_CALLBACK (object_saved), g_strdup ("decoder thread"));
g_signal_connect (G_OBJECT (thread2), "object_saved",
G_CALLBACK (object_saved), g_strdup ("render thread"));
/* create a new bin to hold the elements */
pipeline = gst_pipeline_new ("pipeline");
g_assert (pipeline != NULL);
/* create a disk reader */
filesrc = gst_element_factory_make ("filesrc", "disk_source");
g_assert (filesrc != NULL);
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
queue = gst_element_factory_make ("queue", "queue");
queue2 = gst_element_factory_make ("queue", "queue2");
/* and an audio sink */
osssink = gst_element_factory_make ("osssink", "play_audio");
g_assert (osssink != NULL);
decode = gst_element_factory_make ("mad", "decode");
g_assert (decode != NULL);
/* add objects to the main pipeline */
gst_bin_add (GST_BIN (pipeline), filesrc);
gst_bin_add (GST_BIN (pipeline), queue);
gst_bin_add (GST_BIN (thread), decode);
gst_bin_add (GST_BIN (thread), queue2);
gst_bin_add (GST_BIN (thread2), osssink);
gst_element_link_many (filesrc, queue, decode, queue2, osssink, NULL);
gst_bin_add (GST_BIN (pipeline), thread);
gst_bin_add (GST_BIN (pipeline), thread2);
/* write the bin to stdout */
gst_xml_write_file (GST_ELEMENT (pipeline), stdout);
/* write the bin to a file */
gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
exit (0);
}