added dart-sounds program

[svn42.git] / dart-sounds / src / dart-sounds.c

diff --git a/dart-sounds/src/dart-sounds.c b/dart-sounds/src/dart-sounds.c
new file mode 100644 (file)
index 0000000..1ec692c
--- /dev/null
+++ b/dart-sounds/src/dart-sounds.c
@@ -0,0 +1,125 @@
+/*
+ *  dart-sounds
+ *
+ *
+ *  Copyright (C) 2011 Christian Pointner <equinox@realraum.at>
+ *                         
+ *  This file is part of dart-sounds.
+ *
+ *  dart-sounds is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  dart-sounds is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with dart-sounds. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <gst/gst.h>
+#include <glib.h>
+
+static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer  data)
+{
+  GMainLoop *loop = (GMainLoop *) data;
+  
+  switch (GST_MESSAGE_TYPE (msg)) 
+  {
+     case GST_MESSAGE_EOS:
+      g_print ("End of stream\n");
+      g_main_loop_quit (loop);
+      break;
+
+    case GST_MESSAGE_ERROR: {
+      gchar  *debug;
+      GError *error;
+
+      gst_message_parse_error (msg, &error, &debug);
+      g_free (debug);
+
+      g_printerr ("Error: %s\n", error->message);
+      g_error_free (error);
+
+      g_main_loop_quit (loop);
+      break;
+    }
+    default:
+      break;
+  }
+
+  return TRUE;
+}
+
+static void on_pad_added (GstElement *element, GstPad *pad, gpointer data)
+{
+  GstPad *sinkpad;
+  GstElement *decoder = (GstElement *) data;
+  
+  g_print ("Dynamic pad created, linking demuxer/decoder\n");
+  
+  sinkpad = gst_element_get_static_pad (decoder, "sink");
+  gst_pad_link (pad, sinkpad);
+  gst_object_unref (sinkpad);
+}
+
+int main (int argc,  char *argv[])
+{
+  GMainLoop *loop;
+
+  GstElement *pipeline, *source, *demuxer, *decoder, *conv, *sink;
+  GstBus *bus;
+
+  gst_init (&argc, &argv);
+
+  loop = g_main_loop_new (NULL, FALSE);
+
+  /* Check input arguments */
+  if (argc != 2) {
+    g_printerr ("Usage: %s <Ogg/Vorbis filename>\n", argv[0]);
+    return -1;
+  }
+
+  pipeline = gst_pipeline_new ("audio-player");
+  source   = gst_element_factory_make ("filesrc",       "file-source");
+  demuxer  = gst_element_factory_make ("oggdemux",      "ogg-demuxer");
+  decoder  = gst_element_factory_make ("vorbisdec",     "vorbis-decoder");
+  conv     = gst_element_factory_make ("audioconvert",  "converter");
+  sink     = gst_element_factory_make ("autoaudiosink", "audio-output");
+
+  if (!pipeline || !source || !demuxer || !decoder || !conv || !sink) {
+    g_printerr ("One element could not be created. Exiting.\n");
+    return -1;
+  }
+
+  g_object_set (G_OBJECT (source), "location", argv[1], NULL);
+
+  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
+  gst_bus_add_watch (bus, bus_call, loop);
+  gst_object_unref (bus);
+
+  gst_bin_add_many (GST_BIN (pipeline),
+                    source, demuxer, decoder, conv, sink, NULL);
+
+  gst_element_link (source, demuxer);
+  gst_element_link_many (decoder, conv, sink, NULL);
+  g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), decoder);
+
+  g_print ("Now playing: %s\n", argv[1]);
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+  g_print ("Running...\n");
+  g_main_loop_run (loop);
+
+  g_print ("Returned, stopping playback\n");
+  gst_element_set_state (pipeline, GST_STATE_NULL);
+
+  g_print ("Deleting pipeline\n");
+  gst_object_unref (GST_OBJECT (pipeline));
+
+  return 0;
+}