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<title>JSDoc: Source: options/video.js</title> |
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<h1 class="page-title">Source: options/video.js</h1> |
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<pre class="prettyprint source linenums"><code>/*jshint node:true*/ |
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'use strict'; |
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var utils = require('../utils'); |
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/* |
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*! Video-related methods |
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*/ |
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module.exports = function(proto) { |
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/** |
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* Disable video in the output |
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* |
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* @method FfmpegCommand#noVideo |
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* @category Video |
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* @aliases withNoVideo |
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* |
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* @return FfmpegCommand |
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*/ |
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proto.withNoVideo = |
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proto.noVideo = function() { |
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this._currentOutput.video.clear(); |
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this._currentOutput.videoFilters.clear(); |
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this._currentOutput.video('-vn'); |
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return this; |
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}; |
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/** |
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* Specify video codec |
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* |
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* @method FfmpegCommand#videoCodec |
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* @category Video |
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* @aliases withVideoCodec |
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* |
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* @param {String} codec video codec name |
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* @return FfmpegCommand |
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*/ |
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proto.withVideoCodec = |
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proto.videoCodec = function(codec) { |
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this._currentOutput.video('-vcodec', codec); |
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return this; |
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}; |
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/** |
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* Specify video bitrate |
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* |
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* @method FfmpegCommand#videoBitrate |
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* @category Video |
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* @aliases withVideoBitrate |
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* |
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* @param {String|Number} bitrate video bitrate in kbps (with an optional 'k' suffix) |
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* @param {Boolean} [constant=false] enforce constant bitrate |
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* @return FfmpegCommand |
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*/ |
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proto.withVideoBitrate = |
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proto.videoBitrate = function(bitrate, constant) { |
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bitrate = ('' + bitrate).replace(/k?$/, 'k'); |
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this._currentOutput.video('-b:v', bitrate); |
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if (constant) { |
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this._currentOutput.video( |
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'-maxrate', bitrate, |
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'-minrate', bitrate, |
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'-bufsize', '3M' |
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); |
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} |
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return this; |
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}; |
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/** |
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* Specify custom video filter(s) |
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* |
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* Can be called both with one or many filters, or a filter array. |
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* |
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* @example |
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* command.videoFilters('filter1'); |
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* |
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* @example |
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* command.videoFilters('filter1', 'filter2=param1=value1:param2=value2'); |
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* |
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* @example |
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* command.videoFilters(['filter1', 'filter2']); |
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* |
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* @example |
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* command.videoFilters([ |
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* { |
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* filter: 'filter1' |
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* }, |
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* { |
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* filter: 'filter2', |
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* options: 'param=value:param=value' |
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* } |
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* ]); |
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* |
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* @example |
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* command.videoFilters( |
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* { |
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* filter: 'filter1', |
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* options: ['value1', 'value2'] |
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* }, |
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* { |
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* filter: 'filter2', |
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* options: { param1: 'value1', param2: 'value2' } |
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* } |
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* ); |
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* |
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* @method FfmpegCommand#videoFilters |
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* @category Video |
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* @aliases withVideoFilter,withVideoFilters,videoFilter |
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* |
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* @param {...String|String[]|Object[]} filters video filter strings, string array or |
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* filter specification array, each with the following properties: |
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* @param {String} filters.filter filter name |
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* @param {String|String[]|Object} [filters.options] filter option string, array, or object |
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* @return FfmpegCommand |
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*/ |
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proto.withVideoFilter = |
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proto.withVideoFilters = |
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proto.videoFilter = |
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proto.videoFilters = function(filters) { |
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if (arguments.length > 1) { |
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filters = [].slice.call(arguments); |
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} |
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if (!Array.isArray(filters)) { |
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filters = [filters]; |
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} |
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this._currentOutput.videoFilters(utils.makeFilterStrings(filters)); |
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return this; |
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}; |
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/** |
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* Specify output FPS |
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* |
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* @method FfmpegCommand#fps |
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* @category Video |
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* @aliases withOutputFps,withOutputFPS,withFpsOutput,withFPSOutput,withFps,withFPS,outputFPS,outputFps,fpsOutput,FPSOutput,FPS |
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* |
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* @param {Number} fps output FPS |
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* @return FfmpegCommand |
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*/ |
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proto.withOutputFps = |
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proto.withOutputFPS = |
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proto.withFpsOutput = |
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proto.withFPSOutput = |
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proto.withFps = |
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proto.withFPS = |
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proto.outputFPS = |
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proto.outputFps = |
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proto.fpsOutput = |
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proto.FPSOutput = |
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proto.fps = |
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proto.FPS = function(fps) { |
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this._currentOutput.video('-r', fps); |
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return this; |
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}; |
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/** |
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* Only transcode a certain number of frames |
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* |
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* @method FfmpegCommand#frames |
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* @category Video |
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* @aliases takeFrames,withFrames |
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* |
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* @param {Number} frames frame count |
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* @return FfmpegCommand |
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*/ |
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proto.takeFrames = |
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proto.withFrames = |
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proto.frames = function(frames) { |
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this._currentOutput.video('-vframes', frames); |
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return this; |
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}; |
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}; |
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</code></pre> |
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</article> |
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</section> |
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<nav> |
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<h2><a href="index.html">Index</a></h2><ul><li><a href="index.html#installation">Installation</a></li><ul></ul><li><a href="index.html#usage">Usage</a></li><ul><li><a href="index.html#prerequisites">Prerequisites</a></li><li><a href="index.html#creating-an-ffmpeg-command">Creating an FFmpeg command</a></li><li><a href="index.html#specifying-inputs">Specifying inputs</a></li><li><a href="index.html#input-options">Input options</a></li><li><a href="index.html#audio-options">Audio options</a></li><li><a href="index.html#video-options">Video options</a></li><li><a href="index.html#video-frame-size-options">Video frame size options</a></li><li><a href="index.html#specifying-multiple-outputs">Specifying multiple outputs</a></li><li><a href="index.html#output-options">Output options</a></li><li><a href="index.html#miscellaneous-options">Miscellaneous options</a></li><li><a href="index.html#setting-event-handlers">Setting event handlers</a></li><li><a href="index.html#starting-ffmpeg-processing">Starting FFmpeg processing</a></li><li><a href="index.html#controlling-the-ffmpeg-process">Controlling the FFmpeg process</a></li><li><a href="index.html#reading-video-metadata">Reading video metadata</a></li><li><a href="index.html#querying-ffmpeg-capabilities">Querying ffmpeg capabilities</a></li><li><a href="index.html#cloning-an-ffmpegcommand">Cloning an FfmpegCommand</a></li></ul><li><a href="index.html#contributing">Contributing</a></li><ul><li><a href="index.html#code-contributions">Code contributions</a></li><li><a href="index.html#documentation-contributions">Documentation contributions</a></li><li><a href="index.html#updating-the-documentation">Updating the documentation</a></li><li><a href="index.html#running-tests">Running tests</a></li></ul><li><a href="index.html#main-contributors">Main contributors</a></li><ul></ul><li><a href="index.html#license">License</a></li><ul></ul></ul><h3>Classes</h3><ul><li><a href="FfmpegCommand.html">FfmpegCommand</a></li><ul><li> <a href="FfmpegCommand.html#audio-methods">Audio methods</a></li><li> <a href="FfmpegCommand.html#capabilities-methods">Capabilities methods</a></li><li> <a href="FfmpegCommand.html#custom-options-methods">Custom options methods</a></li><li> <a href="FfmpegCommand.html#input-methods">Input methods</a></li><li> <a href="FfmpegCommand.html#metadata-methods">Metadata methods</a></li><li> <a href="FfmpegCommand.html#miscellaneous-methods">Miscellaneous methods</a></li><li> <a href="FfmpegCommand.html#other-methods">Other methods</a></li><li> <a href="FfmpegCommand.html#output-methods">Output methods</a></li><li> <a href="FfmpegCommand.html#processing-methods">Processing methods</a></li><li> <a href="FfmpegCommand.html#video-methods">Video methods</a></li><li> <a href="FfmpegCommand.html#video-size-methods">Video size methods</a></li></ul></ul> |
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-alpha5</a> on Tue Jul 08 2014 21:22:19 GMT+0200 (CEST) |
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