Note: the default is raw for performance reasons, as writing and reading raw binary pixel data is much faster than encoding and decoding png frames. argsĭefault: Īrray of output-only ffmpeg command line arguments for the final video. If parameter is not provided - assuming user wants to concat the source scenes audio. Path or URL to an audio file to use as the audio track for the output video. concat 5 mp4s together using 4 different transitions await concat ( ] audio This module requires ffmpeg to be installed. This module and CLI make it easy to concat videos together using gl-transitions. Its extremely simple spec makes it really easy to customize existing transitions or write your own as opposed to struggling with complex ffmpeg filter graphs. GL Transitions, on the other hand, is a great open source initiative spearheaded by Gaëtan Renaudeau that is aimed at using GLSL to establish a universal collection of transitions. FFmpeg filter graphs are extremely powerful, but for implementing transitions, they are just too complicated and error-prone. Here are some convoluted examples of a simple cross-fade between two videos. (note that the quality and fps is only poor due to the GIF preview here is the original)įFmpeg is the de facto standard in command-line video editing, but it is really difficult to concatenate videos together using non-trivial transitions. (example of 9 videos concatenated together with unique transitions) The path we're looking for ffmpeg in is the location in which our Lambda Layer will put it, and we'll take a deeper look at that when actually do the deployment of the function.Concats a list of videos together using ffmpeg with sexy OpenGL transitions. This function does little more than take in a set of arguments and run the ffmpeg command with them, returning the stdout and stderr from the process. Import * as childProcess from "child_process" Ĭonst execFile = util.promisify(childProcess.execFile) Ĭonst = await execFile("/opt/bin/ffmpeg", params) The child_process module that comes with the Node framework allows us to do just that.
The easiest way for us to gain access to all that FFmpeg has to offer is to simply invoke it as we would from the command line, but from within our Node.js function. We'll create the wrapper function in a TypeScript module in the worker's root directory. We'll look at how this gets deployed with our worker function later. Copy the packageĬopy the package to a subfolder in our service's directory. tar.xz files and can also be used to create. If you're using Windows, WinRAR is a good option for extracting from.
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