131 lines
2.8 KiB
JavaScript
131 lines
2.8 KiB
JavaScript
/**
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* video.js - video element for blessed
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* Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License).
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* https://github.com/chjj/blessed
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*/
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/**
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* Modules
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*/
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var cp = require('child_process');
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var nextTick = global.setImmediate || process.nextTick.bind(process);
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var helpers = require('../helpers');
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var Node = require('./node');
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var Box = require('./box');
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var Terminal = require('./terminal');
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/**
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* Video
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*/
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function Video(options) {
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var self = this
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, shell
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, args;
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if (!(this instanceof Node)) {
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return new Video(options);
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}
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options = options || {};
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Box.call(this, options);
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if (this.exists('mplayer')) {
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shell = 'mplayer';
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args = ['-vo', 'caca', '-quiet', options.file];
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} else if (this.exists('mpv')) {
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shell = 'mpv';
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args = ['--vo', 'caca', '--really-quiet', options.file];
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} else {
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this.parseTags = true;
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this.setContent('{red-fg}{bold}Error:{/bold}'
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+ ' mplayer or mpv not installed.{/red-fg}');
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return this;
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}
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var opts = {
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parent: this,
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left: 0,
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top: 0,
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width: this.width - this.iwidth,
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height: this.height - this.iheight,
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shell: shell,
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args: args.slice()
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};
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this.now = Date.now() / 1000 | 0;
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this.start = opts.start || 0;
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if (this.start) {
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if (shell === 'mplayer') {
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opts.args.unshift('-ss', this.start + '');
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} else if (shell === 'mpv') {
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opts.args.unshift('--start', this.start + '');
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}
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}
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var DISPLAY = process.env.DISPLAY;
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delete process.env.DISPLAY;
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this.tty = new Terminal(opts);
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process.env.DISPLAY = DISPLAY;
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this.on('click', function() {
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self.tty.pty.write('p');
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});
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// mplayer/mpv cannot resize itself in the terminal, so we have
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// to restart it at the correct start time.
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this.on('resize', function() {
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self.tty.destroy();
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var opts = {
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parent: self,
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left: 0,
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top: 0,
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width: self.width - self.iwidth,
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height: self.height - self.iheight,
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shell: shell,
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args: args.slice()
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};
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var watched = (Date.now() / 1000 | 0) - self.now;
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self.now = Date.now() / 1000 | 0;
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self.start += watched;
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if (shell === 'mplayer') {
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opts.args.unshift('-ss', self.start + '');
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} else if (shell === 'mpv') {
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opts.args.unshift('--start', self.start + '');
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}
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var DISPLAY = process.env.DISPLAY;
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delete process.env.DISPLAY;
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self.tty = new Terminal(opts);
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process.env.DISPLAY = DISPLAY;
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self.screen.render();
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});
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}
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Video.prototype.__proto__ = Box.prototype;
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Video.prototype.type = 'video';
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Video.prototype.exists = function(program) {
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try {
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return !!+cp.execSync('type '
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+ program + ' > /dev/null 2> /dev/null'
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+ ' && echo 1', { encoding: 'utf8' }).trim();
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} catch (e) {
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return false;
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}
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};
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/**
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* Expose
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*/
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module.exports = Video;
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