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/* Copyright 2012-2013, Sebastian Reichel <sre@ring0.de>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
[DBus (name = "io.mainframe.shopsystem.AudioPlayer")]
public class AudioPlayerImplementation {
private dynamic Gst.Element? p;
string path;
public signal void end_of_stream();
private bool bus_callback(Gst.Bus bus, Gst.Message message) {
switch(message.type) {
case Gst.MessageType.EOS:
end_of_stream();
break;
}
return true;
}
public AudioPlayerImplementation(string path) throws IOError {
this.path = path;
var alsa = Gst.ElementFactory.make("alsasink", "alsa");
if (alsa == null)
throw new GLib.IOError.FAILED("Cannot find alsa GStreamer plugin");
p = Gst.ElementFactory.make("playbin", "player");
if (p == null)
throw new GLib.IOError.FAILED("Cannot find playbin2 GStreamer plugin");
p.set("audio-sink", alsa);
p.get_bus().add_watch(Priority.DEFAULT, bus_callback);
}
public void play_system(string file) {
p.set_state(Gst.State.NULL);
p.uri = "file://" + path + "system/" + file;
p.set_state(Gst.State.PLAYING);
}
private string[] get_files(string dir) {
try {
var directory = File.new_for_path(dir);
var enumerator = directory.enumerate_children(FileAttribute.STANDARD_NAME, 0);
string[] result = {};
FileInfo file_info;
while ((file_info = enumerator.next_file ()) != null) {
result += file_info.get_name();
}
return result;
} catch (Error e) {
// TODO
//write_to_log("Error: %s\n", e.message);
return {};
}
}
private string get_random_file(string dir) {
var files = get_files(dir);
var index = Random.int_range(0, files.length);
return files[index];
}
public string get_random_user_theme() {
return get_random_file(path + "user/");
}
public string[] get_user_themes() {
return get_files(path + "user/");
}
public void play_user(string theme, string type) {
p.set_state(Gst.State.NULL);
var file = get_random_file(path + "user/" + theme+ "/" + type);
p.uri = "file://" + path + "user/" + theme+ "/" + type + "/" + file;
p.set_state(Gst.State.PLAYING);
}
}
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