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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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605279f143
Original commit message from CVS: updated example with correct code to add namespaces to root element.
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
#include <stdlib.h>
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#include <gst/gst.h>
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gboolean playing;
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static void
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object_saved (GstObject *object, xmlNodePtr parent, gpointer data)
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{
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xmlNodePtr child;
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xmlNsPtr ns;
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/* first see if the namespace is already known */
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ns = xmlSearchNsByHref (parent->doc, parent, "http://gstreamer.net/gst-test/1.0/");
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if (ns == NULL) {
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xmlNodePtr root = xmlDocGetRootElement (parent->doc);
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/* add namespace to root node */
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ns = xmlNewNs (root, "http://gstreamer.net/gst-test/1.0/", "test");
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}
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child = xmlNewChild(parent, ns, "comment", NULL);
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xmlNewChild(child, NULL, "text", (gchar *)data);
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}
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int main(int argc,char *argv[])
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{
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GstElement *filesrc, *osssink, *queue, *queue2, *decode;
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GstElement *pipeline;
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GstElement *thread, *thread2;
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gst_init(&argc,&argv);
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if (argc != 2) {
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g_print("usage: %s <filename>\n", argv[0]);
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exit(-1);
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}
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/* create new threads to hold the elements */
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thread = gst_element_factory_make ("thread", "thread");
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g_assert (thread != NULL);
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thread2 = gst_element_factory_make ("thread", "thread2");
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g_assert (thread2 != NULL);
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/* these signals will allow us to save custom tags with the gst xml output */
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g_signal_connect (G_OBJECT (thread), "object_saved",
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G_CALLBACK (object_saved),
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g_strdup ("decoder thread"));
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g_signal_connect (G_OBJECT (thread2), "object_saved",
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G_CALLBACK (object_saved),
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g_strdup ("render thread"));
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/* create a new bin to hold the elements */
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pipeline = gst_pipeline_new ("pipeline");
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g_assert (pipeline != NULL);
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/* create a disk reader */
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filesrc = gst_element_factory_make ("filesrc", "disk_source");
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g_assert (filesrc != NULL);
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g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
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queue = gst_element_factory_make ("queue", "queue");
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queue2 = gst_element_factory_make ("queue", "queue2");
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/* and an audio sink */
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osssink = gst_element_factory_make ("osssink", "play_audio");
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g_assert (osssink != NULL);
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decode = gst_element_factory_make ("mad", "decode");
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g_assert (decode != NULL);
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/* add objects to the main pipeline */
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gst_bin_add (GST_BIN (pipeline), filesrc);
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gst_bin_add (GST_BIN (pipeline), queue);
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gst_bin_add (GST_BIN (thread), decode);
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gst_bin_add (GST_BIN (thread), queue2);
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gst_bin_add (GST_BIN (thread2), osssink);
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gst_element_link_many (filesrc, queue, decode, queue2, osssink, NULL);
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gst_bin_add (GST_BIN (pipeline), thread);
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gst_bin_add (GST_BIN (pipeline), thread2);
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/* write the bin to stdout */
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gst_xml_write_file (GST_ELEMENT (pipeline), stdout);
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/* write the bin to a file */
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gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
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exit (0);
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}
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