* Boston, MA 02111-1307, USA.
*/
#include <gst/gst.h>
+#include <string.h>
+
+static void
+warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)
+{
+ GError *err = NULL;
+ gchar *dbg = NULL;
+
+ gst_message_parse_warning (msg, &err, &dbg);
+
+ g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+ g_error_free (err);
+ g_free (dbg);
+}
+
+static void
+error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+ GError *err = NULL;
+ gchar *dbg = NULL;
+
+ gst_message_parse_error (msg, &err, &dbg);
+
+ g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+ g_main_loop_quit (main_loop);
+
+ g_error_free (err);
+ g_free (dbg);
+}
+
+static void
+eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+ g_print ("EOS\n");
+ g_main_loop_quit (main_loop);
+}
+
+static void
+state_cb (GstBus * bus, GstMessage * msg, GstElement * pipeline)
+{
+ if (msg->src == GST_OBJECT (pipeline)) {
+ GstState old_state, new_state, pending_state;
+
+ gst_message_parse_state_changed (msg, &old_state, &new_state,
+ &pending_state);
+ if (new_state == GST_STATE_PLAYING) {
+ g_print ("Decoding ...\n");
+ }
+ }
+}
+
+static void
+new_decoded_pad_cb (GstElement * decodebin, GstPad * pad, gboolean last,
+ GstElement * pipeline)
+{
+ GstPadLinkReturn ret;
+ GstElement *fakesink;
+ GstPad *fakesink_pad;
+
+ fakesink = gst_element_factory_make ("fakesink", NULL);
+ fakesink_pad = gst_element_get_pad (fakesink, "sink");
+
+ gst_bin_add (GST_BIN (pipeline), fakesink);
+
+ /* this doesn't really seem right, but it makes things work for me */
+ gst_element_set_state (fakesink, GST_STATE_PLAYING);
+
+ ret = gst_pad_link (pad, fakesink_pad);
+ if (!GST_PAD_LINK_SUCCESSFUL (ret)) {
+ g_printerr ("Failed to link %s:%s to %s:%s (ret = %d)\n",
+ GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (fakesink_pad), ret);
+ } else {
+ g_printerr ("Linked %s:%s to %s:%s\n", GST_DEBUG_PAD_NAME (pad),
+ GST_DEBUG_PAD_NAME (fakesink_pad));
+ }
+
+ gst_object_unref (fakesink_pad);
+}
gint
main (gint argc, gchar * argv[])
GstElement *source;
GstElement *pipeline;
GstStateChangeReturn res;
+ GMainLoop *loop;
+ GstBus *bus;
gst_init (&argc, &argv);
+ if (argc != 2) {
+ g_printerr ("Decode file from start to end.\n");
+ g_printerr ("Usage: %s URI\n\n", argv[0]);
+ return 1;
+ }
+
+ loop = g_main_loop_new (NULL, TRUE);
+
pipeline = gst_pipeline_new ("pipeline");
+ bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
+ gst_bus_add_signal_watch (bus);
+
+ g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);
+ g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);
+ g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);
+ g_signal_connect (bus, "message::state-changed", G_CALLBACK (state_cb),
+ pipeline);
+
source = gst_element_factory_make ("gnomevfssrc", "source");
g_assert (source);
- g_object_set (G_OBJECT (source), "location", argv[1], NULL);
+
+ if (argv[1] && strstr (argv[1], "://") != NULL) {
+ g_object_set (G_OBJECT (source), "location", argv[1], NULL);
+ } else if (argv[1]) {
+ gchar *uri = g_strdup_printf ("file://%s", argv[1]);
+
+ g_object_set (G_OBJECT (source), "location", uri, NULL);
+ g_free (uri);
+ }
decoder = gst_element_factory_make ("decodebin", "decoder");
g_assert (decoder);
gst_element_link_pads (source, "src", decoder, "sink");
+ g_signal_connect (decoder, "new-decoded-pad",
+ G_CALLBACK (new_decoded_pad_cb), pipeline);
+
res = gst_element_set_state (pipeline, GST_STATE_PLAYING);
- if (res != GST_STATE_CHANGE_SUCCESS) {
+ if (res == GST_STATE_CHANGE_FAILURE) {
g_print ("could not play\n");
return -1;
}
- g_main_loop_run (g_main_loop_new (NULL, FALSE));
+ g_main_loop_run (loop);
+
+ /* tidy up */
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+ gst_object_unref (pipeline);
+ gst_object_unref (bus);
return 0;
}
return TRUE;
}
+static void
+warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)
+{
+ GError *err = NULL;
+ gchar *dbg = NULL;
+
+ gst_message_parse_warning (msg, &err, &dbg);
+
+ g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+ g_error_free (err);
+ g_free (dbg);
+}
+
+static void
+error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+ GError *err = NULL;
+ gchar *dbg = NULL;
+
+ gst_message_parse_error (msg, &err, &dbg);
+
+ g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+ g_main_loop_quit (main_loop);
+
+ g_error_free (err);
+ g_free (dbg);
+}
+
+static void
+eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+ g_print ("EOS\n");
+ g_main_loop_quit (main_loop);
+}
+
+
gint
main (gint argc, gchar * argv[])
{
- GstElement *player;
GstStateChangeReturn res;
+ GstElement *player;
+ GMainLoop *loop;
+ GstBus *bus;
gst_init (&argc, &argv);
+ loop = g_main_loop_new (NULL, TRUE);
+
player = gst_element_factory_make ("playbin", "player");
g_assert (player);
+ bus = gst_pipeline_get_bus (GST_PIPELINE (player));
+ gst_bus_add_signal_watch (bus);
+
+ g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);
+ g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);
+ g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);
+
g_object_set (G_OBJECT (player), "uri", argv[1], NULL);
res = gst_element_set_state (player, GST_STATE_PLAYING);
g_timeout_add (UPDATE_INTERVAL, (GSourceFunc) update_scale, player);
- g_main_loop_run (g_main_loop_new (NULL, TRUE));
+ g_main_loop_run (loop);
+
+ /* tidy up */
+ gst_element_set_state (player, GST_STATE_NULL);
+ gst_object_unref (player);
+ gst_object_unref (bus);
return 0;
}