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| | <h1 class="page-title">Source: options/custom.js</h1> |
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| | <section> |
| | <article> |
| | <pre class="prettyprint source linenums"><code>/*jshint node:true*/ |
| | 'use strict'; |
| |
|
| | var utils = require('../utils'); |
| |
|
| |
|
| | /* |
| | *! Custom options methods |
| | */ |
| |
|
| | module.exports = function(proto) { |
| | /** |
| | * Add custom input option(s) |
| | * |
| | * When passing a single string or an array, each string containing two |
| | * words is split (eg. inputOptions('-option value') is supported) for |
| | * compatibility reasons. This is not the case when passing more than |
| | * one argument. |
| | * |
| | * @example |
| | * command.inputOptions('option1'); |
| | * |
| | * @example |
| | * command.inputOptions('option1', 'option2'); |
| | * |
| | * @example |
| | * command.inputOptions(['option1', 'option2']); |
| | * |
| | * @method FfmpegCommand#inputOptions |
| | * @category Custom options |
| | * @aliases addInputOption,addInputOptions,withInputOption,withInputOptions,inputOption |
| | * |
| | * @param {...String} options option string(s) or string array |
| | * @return FfmpegCommand |
| | */ |
| | proto.addInputOption = |
| | proto.addInputOptions = |
| | proto.withInputOption = |
| | proto.withInputOptions = |
| | proto.inputOption = |
| | proto.inputOptions = function(options) { |
| | if (!this._currentInput) { |
| | throw new Error('No input specified'); |
| | } |
| |
|
| | var doSplit = true; |
| |
|
| | if (arguments.length > 1) { |
| | options = [].slice.call(arguments); |
| | doSplit = false; |
| | } |
| |
|
| | if (!Array.isArray(options)) { |
| | options = [options]; |
| | } |
| |
|
| | this._currentInput.options(options.reduce(function(options, option) { |
| | var split = String(option).split(' '); |
| |
|
| | if (doSplit && split.length === 2) { |
| | options.push(split[0], split[1]); |
| | } else { |
| | options.push(option); |
| | } |
| |
|
| | return options; |
| | }, [])); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Add custom output option(s) |
| | * |
| | * @example |
| | * command.outputOptions('option1'); |
| | * |
| | * @example |
| | * command.outputOptions('option1', 'option2'); |
| | * |
| | * @example |
| | * command.outputOptions(['option1', 'option2']); |
| | * |
| | * @method FfmpegCommand#outputOptions |
| | * @category Custom options |
| | * @aliases addOutputOption,addOutputOptions,addOption,addOptions,withOutputOption,withOutputOptions,withOption,withOptions,outputOption |
| | * |
| | * @param {...String} options option string(s) or string array |
| | * @return FfmpegCommand |
| | */ |
| | proto.addOutputOption = |
| | proto.addOutputOptions = |
| | proto.addOption = |
| | proto.addOptions = |
| | proto.withOutputOption = |
| | proto.withOutputOptions = |
| | proto.withOption = |
| | proto.withOptions = |
| | proto.outputOption = |
| | proto.outputOptions = function(options) { |
| | var doSplit = true; |
| |
|
| | if (arguments.length > 1) { |
| | options = [].slice.call(arguments); |
| | doSplit = false; |
| | } |
| |
|
| | if (!Array.isArray(options)) { |
| | options = [options]; |
| | } |
| |
|
| | this._currentOutput.options(options.reduce(function(options, option) { |
| | var split = String(option).split(' '); |
| |
|
| | if (doSplit && split.length === 2) { |
| | options.push(split[0], split[1]); |
| | } else { |
| | options.push(option); |
| | } |
| |
|
| | return options; |
| | }, [])); |
| | return this; |
| | }; |
| |
|
| |
|
| | /** |
| | * Specify a complex filtergraph |
| | * |
| | * Calling this method will override any previously set filtergraph, but you can set |
| | * as many filters as needed in one call. |
| | * |
| | * @example <caption>Overlay an image over a video (using a filtergraph string)</caption> |
| | * ffmpeg() |
| | * .input('video.avi') |
| | * .input('image.png') |
| | * .complexFilter('[0:v][1:v]overlay[out]', ['out']); |
| | * |
| | * @example <caption>Overlay an image over a video (using a filter array)</caption> |
| | * ffmpeg() |
| | * .input('video.avi') |
| | * .input('image.png') |
| | * .complexFilter([{ |
| | * filter: 'overlay', |
| | * inputs: ['0:v', '1:v'], |
| | * outputs: ['out'] |
| | * }], ['out']); |
| | * |
| | * @example <caption>Split video into RGB channels and output a 3x1 video with channels side to side</caption> |
| | * ffmpeg() |
| | * .input('video.avi') |
| | * .complexFilter([ |
| | * // Duplicate video stream 3 times into streams a, b, and c |
| | * { filter: 'split', options: '3', outputs: ['a', 'b', 'c'] }, |
| | * |
| | * // Create stream 'red' by cancelling green and blue channels from stream 'a' |
| | * { filter: 'lutrgb', options: { g: 0, b: 0 }, inputs: 'a', outputs: 'red' }, |
| | * |
| | * // Create stream 'green' by cancelling red and blue channels from stream 'b' |
| | * { filter: 'lutrgb', options: { r: 0, b: 0 }, inputs: 'b', outputs: 'green' }, |
| | * |
| | * // Create stream 'blue' by cancelling red and green channels from stream 'c' |
| | * { filter: 'lutrgb', options: { r: 0, g: 0 }, inputs: 'c', outputs: 'blue' }, |
| | * |
| | * // Pad stream 'red' to 3x width, keeping the video on the left, and name output 'padded' |
| | * { filter: 'pad', options: { w: 'iw*3', h: 'ih' }, inputs: 'red', outputs: 'padded' }, |
| | * |
| | * // Overlay 'green' onto 'padded', moving it to the center, and name output 'redgreen' |
| | * { filter: 'overlay', options: { x: 'w', y: 0 }, inputs: ['padded', 'green'], outputs: 'redgreen'}, |
| | * |
| | * // Overlay 'blue' onto 'redgreen', moving it to the right |
| | * { filter: 'overlay', options: { x: '2*w', y: 0 }, inputs: ['redgreen', 'blue']}, |
| | * ]); |
| | * |
| | * @method FfmpegCommand#complexFilter |
| | * @category Custom options |
| | * @aliases filterGraph |
| | * |
| | * @param {String|Array} spec filtergraph string or array of filter specification |
| | * objects, each having the following properties: |
| | * @param {String} spec.filter filter name |
| | * @param {String|Array} [spec.inputs] (array of) input stream specifier(s) for the filter, |
| | * defaults to ffmpeg automatically choosing the first unused matching streams |
| | * @param {String|Array} [spec.outputs] (array of) output stream specifier(s) for the filter, |
| | * defaults to ffmpeg automatically assigning the output to the output file |
| | * @param {Object|String|Array} [spec.options] filter options, can be omitted to not set any options |
| | * @param {Array} [map] (array of) stream specifier(s) from the graph to include in |
| | * ffmpeg output, defaults to ffmpeg automatically choosing the first matching streams. |
| | * @return FfmpegCommand |
| | */ |
| | proto.filterGraph = |
| | proto.complexFilter = function(spec, map) { |
| | this._complexFilters.clear(); |
| |
|
| | if (!Array.isArray(spec)) { |
| | spec = [spec]; |
| | } |
| |
|
| | this._complexFilters('-filter_complex', utils.makeFilterStrings(spec).join(';')); |
| |
|
| | if (Array.isArray(map)) { |
| | var self = this; |
| | map.forEach(function(streamSpec) { |
| | self._complexFilters('-map', streamSpec.replace(utils.streamRegexp, '[$1]')); |
| | }); |
| | } else if (typeof map === 'string') { |
| | this._complexFilters('-map', map.replace(utils.streamRegexp, '[$1]')); |
| | } |
| |
|
| | return this; |
| | }; |
| | }; |
| | </code></pre> |
| | </article> |
| | </section> |
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