/*
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Calypso - Media Player Remote Control via HTTP for Raspberry Pi
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Copyright (C) 2021-2023 Ulrich Hilger
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package de.uhilger.calypso.actor;
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import de.uhilger.calypso.MeldeThread;
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import de.uhilger.calypso.Rueckmelder;
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import de.uhilger.calypso.http.Server;
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import java.io.IOException;
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import java.util.Map;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* Der PlayActor loest das Abspielen eines Titels aus.
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*
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* Das koennte auch als Shell-Skript geschehen, aber abhaengig
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* vom verwendeten Abspielprogramm benoetigt man das Prozessobjekt
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* des laufenden Abspielprozesses im Verlauf des Abspielens noch, um
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* weitere Kommandos zu senden.
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*
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* Beim Abspieler mpv werden Kommandos allerdings ueber Unix Domain
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* Sockets gesendet, hierfuer waere also das Objekt des laufenden
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* Abspielprozesses nicht noetig. Man benoetigt es aber auch um
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* festzustellen, ob der Abspielprozess beendet ist.
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*
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* @author Ulrich Hilger
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*/
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public class PlayActor {
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public Process run(Map parameter) {
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String meldeUrlStr = null;
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Object o = parameter.get("r");
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if (o instanceof String) {
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meldeUrlStr = (String) o;
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}
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StringBuilder kommando = new StringBuilder();
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o = parameter.get("titel");
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if (o instanceof String) {
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String titel = (String) o;
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kommando.append("mpv --input-ipc-server=/tmp/mpvsocket --no-terminal ");
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if (titel.toLowerCase().endsWith(".mp3")) {
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kommando.append("--vo=null ");
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}
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kommando.append(titel);
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Logger.getLogger(PlayActor.class.getName()).log(Level.FINE, kommando.toString());
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Process player_process;
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try {
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player_process = Runtime.getRuntime().exec(kommando.toString());
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if (meldeUrlStr != null) {
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MeldeThread mt = new MeldeThread();
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mt.setProcess(player_process);
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mt.lauscherHinzufuegen(new Rueckmelder());
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mt.setMeldeUrl(meldeUrlStr);
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mt.start();
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}
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return player_process;
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} catch (IOException ex) {
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Logger logger = Logger.getLogger(PlayActor.class.getName());
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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ex.printStackTrace();
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return null;
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}
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} else {
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Logger.getLogger(PlayActor.class.getName()).log(Level.INFO, "Titel fehlt");
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return null;
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}
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}
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}
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