blob: c471dbfb967bd7deff7f20a22bc3e99c1eb106f8 [file] [log] [blame]
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <>
* 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
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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,
if (new_state == GST_STATE_PLAYING) {
g_print ("Decoding ...\n");
static void
pad_added_cb (GstElement * decodebin, GstPad * pad, GstElement * pipeline)
GstPadLinkReturn ret;
GstElement *fakesink;
GstPad *fakesink_pad;
fakesink = gst_element_factory_make ("fakesink", NULL);
fakesink_pad = gst_element_get_static_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);
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);
main (gint argc, gchar * argv[])
GstElement *decoder;
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),
source = gst_element_factory_make ("giosrc", "source");
g_assert (source);
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_bin_add (GST_BIN (pipeline), source);
gst_bin_add (GST_BIN (pipeline), decoder);
gst_element_link_pads (source, "src", decoder, "sink");
g_signal_connect (decoder, "pad-added", G_CALLBACK (pad_added_cb), pipeline);
res = gst_element_set_state (pipeline, GST_STATE_PLAYING);
g_print ("could not play\n");
return -1;
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;