Remove fluent-ffmpeg dependency

server/libs/fluentFfmpeg/options/custom.js

@@ -0,0 +1,212 @@
+/*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;
+  };
+};