blob: 6a6266c2118503031e989950c9dd3cab9c70cee7 [file] [log] [blame]
/*** block a from ../../../docs/manual/advanced-autoplugging.xml ***/
#include <gst/gst.h>
/*** block b from ../../../docs/manual/advanced-autoplugging.xml ***/
static gboolean
my_bus_callback (GstBus *bus,
GstMessage *message,
gpointer data)
GMainLoop *loop = data;
switch (GST_MESSAGE_TYPE (message)) {
GError *err;
gchar *debug;
gst_message_parse_error (message, &err, &debug);
g_print ("Error: %s\n", err->message);
g_error_free (err);
g_free (debug);
g_main_loop_quit (loop);
/* end-of-stream */
g_main_loop_quit (loop);
/* remove from queue */
return TRUE;
/*** block c from ../../../docs/manual/advanced-autoplugging.xml ***/
static gboolean
idle_exit_loop (gpointer data)
g_main_loop_quit ((GMainLoop *) data);
/* once */
return FALSE;
static void
cb_typefound (GstElement *typefind,
guint probability,
GstCaps *caps,
gpointer data)
GMainLoop *loop = data;
gchar *type;
type = gst_caps_to_string (caps);
g_print ("Media type %s found, probability %d%%\n", type, probability);
g_free (type);
/* since we connect to a signal in the pipeline thread context, we need
* to set an idle handler to exit the main loop in the mainloop context.
* Normally, your app should not need to worry about such things. */
g_idle_add (idle_exit_loop, loop);
main (gint argc,
gchar *argv[])
GMainLoop *loop;
GstElement *pipeline, *filesrc, *typefind, *fakesink;
GstBus *bus;
/* init GStreamer */
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* check args */
if (argc != 2) {
g_print ("Usage: %s <filename>\n", argv[0]);
return -1;
/* create a new pipeline to hold the elements */
pipeline = gst_pipeline_new ("pipe");
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (bus, my_bus_callback, NULL);
gst_object_unref (bus);
/* create file source and typefind element */
filesrc = gst_element_factory_make ("filesrc", "source");
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
typefind = gst_element_factory_make ("typefind", "typefinder");
g_signal_connect (typefind, "have-type", G_CALLBACK (cb_typefound), loop);
fakesink = gst_element_factory_make ("fakesink", "sink");
/* setup */
gst_bin_add_many (GST_BIN (pipeline), filesrc, typefind, fakesink, NULL);
gst_element_link_many (filesrc, typefind, fakesink, NULL);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
g_main_loop_run (loop);
/* unset */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
gst_object_unref (GST_OBJECT (pipeline));
return 0;