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| | <h1 class="page-title">Source: options/output.js</h1> |
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| | <section> |
| | <article> |
| | <pre class="prettyprint source linenums"><code>/*jshint node:true*/ |
| | 'use strict'; |
| |
|
| | var utils = require('../utils'); |
| |
|
| |
|
| | /* |
| | *! Output-related methods |
| | */ |
| |
|
| | module.exports = function(proto) { |
| | /** |
| | * Add output |
| | * |
| | * @method FfmpegCommand#output |
| | * @category Output |
| | * @aliases addOutput |
| | * |
| | * @param {String|Writable} target target file path or writable stream |
| | * @param {Object} [pipeopts={}] pipe options (only applies to streams) |
| | * @return FfmpegCommand |
| | */ |
| | proto.addOutput = |
| | proto.output = function(target, pipeopts) { |
| | var isFile = false; |
| |
|
| | if (!target && this._currentOutput) { |
| | // No target is only allowed when called from constructor |
| | throw new Error('Invalid output'); |
| | } |
| |
|
| | if (target && typeof target !== 'string') { |
| | if (!('writable' in target) || !(target.writable)) { |
| | throw new Error('Invalid output'); |
| | } |
| | } else if (typeof target === 'string') { |
| | var protocol = target.match(/^([a-z]{2,}):/i); |
| | isFile = !protocol || protocol[0] === 'file'; |
| | } |
| |
|
| | if (target && !('target' in this._currentOutput)) { |
| | // For backwards compatibility, set target for first output |
| | this._currentOutput.target = target; |
| | this._currentOutput.isFile = isFile; |
| | this._currentOutput.pipeopts = pipeopts || {}; |
| | } else { |
| | if (target && typeof target !== 'string') { |
| | var hasOutputStream = this._outputs.some(function(output) { |
| | return typeof output.target !== 'string'; |
| | }); |
| |
|
| | if (hasOutputStream) { |
| | throw new Error('Only one output stream is supported'); |
| | } |
| | } |
| |
|
| | this._outputs.push(this._currentOutput = { |
| | target: target, |
| | isFile: isFile, |
| | flags: {}, |
| | pipeopts: pipeopts || {} |
| | }); |
| |
|
| | var self = this; |
| | ['audio', 'audioFilters', 'video', 'videoFilters', 'sizeFilters', 'options'].forEach(function(key) { |
| | self._currentOutput[key] = utils.args(); |
| | }); |
| |
|
| | if (!target) { |
| | // Call from constructor: remove target key |
| | delete this._currentOutput.target; |
| | } |
| | } |
| |
|
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Specify output seek time |
| | * |
| | * @method FfmpegCommand#seek |
| | * @category Input |
| | * @aliases seekOutput |
| | * |
| | * @param {String|Number} seek seek time in seconds or as a '[hh:[mm:]]ss[.xxx]' string |
| | * @return FfmpegCommand |
| | */ |
| | proto.seekOutput = |
| | proto.seek = function(seek) { |
| | this._currentOutput.options('-ss', seek); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Set output duration |
| | * |
| | * @method FfmpegCommand#duration |
| | * @category Output |
| | * @aliases withDuration,setDuration |
| | * |
| | * @param {String|Number} duration duration in seconds or as a '[[hh:]mm:]ss[.xxx]' string |
| | * @return FfmpegCommand |
| | */ |
| | proto.withDuration = |
| | proto.setDuration = |
| | proto.duration = function(duration) { |
| | this._currentOutput.options('-t', duration); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Set output format |
| | * |
| | * @method FfmpegCommand#format |
| | * @category Output |
| | * @aliases toFormat,withOutputFormat,outputFormat |
| | * |
| | * @param {String} format output format name |
| | * @return FfmpegCommand |
| | */ |
| | proto.toFormat = |
| | proto.withOutputFormat = |
| | proto.outputFormat = |
| | proto.format = function(format) { |
| | this._currentOutput.options('-f', format); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Add stream mapping to output |
| | * |
| | * @method FfmpegCommand#map |
| | * @category Output |
| | * |
| | * @param {String} spec stream specification string, with optional square brackets |
| | * @return FfmpegCommand |
| | */ |
| | proto.map = function(spec) { |
| | this._currentOutput.options('-map', spec.replace(utils.streamRegexp, '[$1]')); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Run flvtool2/flvmeta on output |
| | * |
| | * @method FfmpegCommand#flvmeta |
| | * @category Output |
| | * @aliases updateFlvMetadata |
| | * |
| | * @return FfmpegCommand |
| | */ |
| | proto.updateFlvMetadata = |
| | proto.flvmeta = function() { |
| | this._currentOutput.flags.flvmeta = true; |
| | return this; |
| | }; |
| | }; |
| | </code></pre> |
| | </article> |
| | </section> |
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