80 lines
1.9 KiB
JavaScript
80 lines
1.9 KiB
JavaScript
"use strict";
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const tags = require('./library/tags');
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const throttle = require('throttle-debounce/throttle');
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const ChildProcessEmitter = require('./child-process').ChildProcessEmitter;
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const DEFAULT_STOP_THROTTLE = 2000;
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const DEFAULT_PAUSE_THROTTLE = 2000;
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const DEFAULT_PLAY_THROTTLE = 5000;
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const DEFAULT_UNKNOWN_THROTTLE = 2000;
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class MediaPlayer extends ChildProcessEmitter {
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constructor(config, logger) {
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super(config.mpg321, logger);
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this.config = config;
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this.stderrFilters.push(line => {
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return line.substr(0, 3) == '@F '
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});
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this.stopThrottled = throttle(config.stop_throttle || DEFAULT_STOP_THROTTLE, true, this._stop);
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this.pauseThrottled = throttle(config.pause_throttle || DEFAULT_PAUSE_THROTTLE, true, this._pause);
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this.playFileThrottled = throttle(config.play_throttle || DEFAULT_PLAY_THROTTLE, true, this._playFile);
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// always throttled
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this.unknown = throttle(config.unknown_throttle || DEFAULT_UNKNOWN_THROTTLE, this._unknown);
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// default to unthrottled
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this.pause = this._pause;
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this.playFile = this._playFile;
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this.stop = this._stop;
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}
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throttle() {
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this.stop = this.stopThrottled;
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this.pause = this.pauseThrottled;
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this.playFile = this.playFileThrottled;
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}
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_stop(tag) {
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this.emit('command', tag);
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this.send('STOP');
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}
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_pause(tag) {
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this.emit('command', tag);
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this.send('PAUSE');
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}
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_playFile(tag) {
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this.emit('command', tag);
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this.send("LOAD " + tag.path);
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}
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_unknown(tag) {
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this.emit('command', tag);
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}
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handleTag(tag) {
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if (tag instanceof tags.StopCommand) {
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this.stop(tag);
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} else if (tag instanceof tags.PauseCommand) {
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this.pause(tag);
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} else if (tag instanceof tags.FileTag) {
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this.playFile(tag);
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} else {
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this.unknown(tag);
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}
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}
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}
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module.exports = function(config, logger) {
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return new MediaPlayer(config, logger);
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};
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// vim:set ts=2 sw=2 et:
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