Fluent-ffmpeg

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This library abstracts the complex command-line usage of ffmpeg into a fluent, easy to use node. In order to be able to use this module, make sure you have ffmpeg installed on your system including all necessary encoding libraries like libmp3lame or libx This is the documentation for fluent-ffmpeg 2. You can still access the code and documentation for fluent-ffmpeg 1. You will find a lot of usage examples including a real-time streaming example using flowplayer and express! It may work with previous versions but several features won't be available and the library is not tested with lower versions anylonger. Otherwise, it will attempt to call ffmpeg directly so it should be in your PATH.

Fluent-ffmpeg

FFmpeg is a versatile open-source tool for encoding video files and performing basic editing operations such as stitching, cropping, and resizing. You probably know it can run from the terminal, but did you know it can also be invoked from an application in Node. Would you prefer to use an API rather than managing your own server infrastructure? Better yet, it's less expensive than hosting your own video servers. Make sure you install the ffmpeg-static and ffmpeg-fluent NPM packages first. The ffmpeg-static package provides a static build of FFmpeg, so you don't need to worry about installing it manually on the machine where you will deploy your application, and ffmpeg-fluent gives us a simple interface to run FFmpeg commands from JavaScript. In order to extract audio from a video file and store it as an MP3, we can use the following code:. This is how you can remove the audio track from a video without re-encoding. This operation is quite fast, because it doesn't have to process the video. It just copies the video stream but not the audio:. How to use FFmpeg in Node. This tutorial will show you how to use the FFmpeg from a Node. Frames are stored as frame You might also like these tutorials Whether you prefer code or no-code, we have a wide range of guides on video automation.

It may be either a single stream specifier string or an fluent-ffmpeg of stream specifiers.

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Please ensure first that you know how to achieve what you want on command line. If you don't, have a look at the ffmpeg documentation and ask the ffmpeg community first, as you're far more likely to get an appropriate answer there. When you know how to achieve your goal on command line and don't know how to translate it to fluent-ffmpeg calls, please ensure that you've read the documentation first. If you find some command line switch that has no matching fluent-ffmpeg method, you can use the inputOptions and outputOptions method instead. If you can't find how to do what you want, feel free to create an issue. Beware though this is not the most appropriate place to talk about ffmpeg usage try their mailing list or irc channels instead.

Fluent-ffmpeg

This library abstracts the complex command-line usage of ffmpeg into a fluent, easy to use node. In order to be able to use this module, make sure you have ffmpeg installed on your system including all necessary encoding libraries like libmp3lame or libx Now including input streaming support means you can convert on-the-fly using an input- and an outputstream! To run unit tests, make sure have mocha installed on your system registered as devDependency in npm config. You find a lot of usage examples including a real-time streaming example using flowplayer and express! You have to supply an config object to the constructor containing at least the input source either a ReadableStream or a filepath. Since ffmpeg does not support dynamic sizing of your movies, fluent-ffmpeg can do this job for you using it's internal metadata-discovery.

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The stderr event is emitted every time FFmpeg outputs a line to stderr. These methods pass an object to their callback with keys for each available format, codec or filter. When everything is settled down, you can submit a pull request. Only do this if you know what you're doing. Have a question about this project? To use those, pass a function which takes an FfmpegCommand as a parameter. Setting options, adding inputs or event handlers on a clone will not affect the original command. Note that for compatibility with some codecs, computed dimensions are always rounded down to multiples of 2. This is mainly useful when you want to apply different processing options on the same input. Before actually running a command, you may want to set event listeners on it to be notified when it's done.

Concats a list of videos together using ffmpeg with sexy OpenGL transitions.

Git github. Skip to content. It is emitted with an error object as an argument. Both stdout and stderr are limited by the stdoutLines option defaults to lines. Try on RunKit. The end event is emitted when processing has finished. The options argument, if present, is passed to ffmpeg output stream's pipe method see nodejs documentation. New issue. Note that calls to aspect are ignored when size has been called with a fixed width and height or a percentage, and also when size has not been called at all. Calling this method makes fluent-ffmpeg run flvmeta or flvtool2 on the output file to add FLV metadata and make files streamable. How to seek a transcoded video over HTTP? They all work together to generate the appropriate video filters. These methods pass an object to their callback with keys for each available format, codec or filter. You must also have ffprobe installed it comes with ffmpeg in most distributions. The complexFilter method enables setting a complex filtergraph for a command.