--- /dev/null
+/* Demo Recorder for MAEMO 5
+* Copyright (C) 2010 Dru Moore <usr@dru-id.co.uk>
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2,
+* or (at your option) any later version, as published by the Free
+* Software Foundation
+*
+* This program 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 this program; if not, write to the
+* Free Software Foundation, Inc.,
+* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+namespace IdWorks {
+
+public class InputBin : Gst.Bin {
+
+ Gst.Element src;
+ Gst.Element converter;
+ Gst.Element pregain;
+ Gst.Element dynamics;
+ Gst.Element volume;
+ Gst.GhostPad src_pad;
+ Gst.GhostPad sink_pad;
+
+ public InputBin(string name) {
+ this.set_name(name);
+ construct_pipeline(SettingsStructures.RecordingSettings());
+ }
+ public InputBin.with_settings(string name, SettingsStructures.RecordingSettings settings) {
+ this.name = name;
+ construct_pipeline(settings);
+ }
+
+ private string get_source_device(string name) {
+ switch (name) {
+ case "Microphone":
+ return "source.hw0";
+ case "Monitor":
+ return "sink.hw0.monitor";
+ case "Bluetooth":
+ return "source.hw1";
+ default:
+ return "source.hw0";
+ }
+ }
+ private string get_source_name(string device) {
+ switch (device) {
+ case "source.hw0":
+ return "Microphone";
+ case "sink.hw0.monitor":
+ return "Monitor";
+ case "source.hw1":
+ return "Bluetooth";
+ default:
+ return "Microphone";
+ }
+ }
+
+ private void construct_pipeline(SettingsStructures.RecordingSettings settings) {
+
+ this.src = Gst.ElementFactory.make("pulsesrc", "capture");
+ this.src.set_property("device", get_source_device(settings.source)); //"source.hw0"); /// TODO
+ this.add(this.src);
+
+ this.converter = Gst.ElementFactory.make("audioconvert", "converter");
+ this.add(this.converter);
+
+ this.pregain = Gst.ElementFactory.make("volume", "pregain");
+ this.pregain.set_property("volume", settings.pregain);
+ this.add(this.pregain);
+
+ this.dynamics = Gst.ElementFactory.make("audiodynamic", "dynamics");
+ this.add(this.dynamics);
+ this.dynamics.set_property("mode", settings.dynamics.mode); // compressor or expander
+ this.dynamics.set_property("characteristics", settings.dynamics.characteristics); // hard-knee or soft-knee
+ this.dynamics.set_property("threshold", settings.dynamics.threshold); // [0, 1]
+ this.dynamics.set_property("ratio", settings.dynamics.ratio); // >= 0
+
+ this.volume = Gst.ElementFactory.make("volume", "volume");
+ this.volume.set_property("volume", settings.volume);
+ this.add(this.volume);
+
+ this.src.link(converter);
+ this.converter.link(pregain);
+ this.pregain.link(dynamics);
+ this.dynamics.link(volume);
+
+ sink_pad = new Gst.GhostPad("sink", src.get_static_pad("sink"));
+ this.add_pad(sink_pad);
+ src_pad = new Gst.GhostPad("src", volume.get_static_pad("src"));
+ this.add_pad(src_pad);
+ }
+
+ public new Gst.PadTemplate get_pad_template(string name) {
+ switch (name) {
+ case "src":
+ return this.volume.get_pad_template("src");
+ case "sink":
+ return this.src.get_pad_template("sink");
+ default:
+ return base.get_pad_template(name);
+ }
+ }
+
+ public void set_dynamics(string mode, string characteristics, double threshold, double ratio) {
+ this.dynamics.set_property("mode", mode); // compressor or expander
+ this.dynamics.set_property("characteristics", characteristics); // hard-knee or soft-knee
+ this.dynamics.set_property("threshold", threshold); // [0, 1]
+ this.dynamics.set_property("ratio", ratio); // >= 0
+ }
+ public void set_dynamics_mode(string mode) {
+ this.dynamics.set_property("mode", mode); // compressor or expander
+ }
+ public void set_dynamics_characteristics(string characteristics) {
+ this.dynamics.set_property("characteristics", characteristics); // hard-knee or soft-knee
+ }
+ public void set_dynamics_threshold(double threshold) {
+ this.dynamics.set_property("threshold", threshold); // [0, 1]
+ }
+ public void set_dynamics_ratio(double ratio) {
+ this.dynamics.set_property("ratio", ratio); // >= 0
+ }
+
+ public void set_source(string name) {
+ Gst.State state;
+ Gst.ClockTime time = Gst.util_get_timestamp ();
+ this.get_state (out state, null, time);
+ this.set_state(Gst.State.NULL);
+ this.src.set_property("device", get_source_device(name));
+ this.set_state(state);
+ }
+ public string get_source() {
+ GLib.Value val = 0;
+ this.src.get_property("device", ref val);
+ return get_source_name(val.get_string());
+ }
+
+ public void set_pregain(double val)
+ requires (val >= 0.0 && val <= 10.0) {
+ this.pregain.set_property("volume", val);
+ }
+ public double get_pregain()
+ ensures (result >= 0.0 && result <= 10.0) {
+ GLib.Value val = 0;
+ this.pregain.get_property("volume", ref val);
+ return val.get_double();
+ }
+
+ public void set_volume(double val)
+ requires (val >= 0.0 && val <= 10.0) {
+ this.volume.set_property("volume", val);
+ }
+ public double get_volume()
+ ensures (result >= 0.0 && result <= 10.0) {
+ GLib.Value val = 0;
+ this.volume.get_property("volume", ref val);
+ return val.get_double();
+ }
+
+ public void set_mute(bool val) {
+ this.volume.set_property("mute", val);
+ }
+ public bool get_mute() {
+ GLib.Value val = 0;
+ this.volume.get_property("mute", ref val);
+ return val.get_boolean();
+ }
+
+
+}
+
+}
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projects / demorecorder / blobdiff