Image of FFmpeg

FFmpeg

Technology

A popular multimedia framework where Anthropic's Mythos model found a 16-year-old bug.


First Mentioned

4/26/2026, 3:51:51 AM

Last Updated

4/26/2026, 3:54:54 AM

Research Retrieved

4/26/2026, 3:54:54 AM

Summary

FFmpeg is a foundational open-source multimedia framework consisting of a suite of libraries and tools for recording, converting, and streaming audio and video. Its core components include the ffmpeg command-line tool, ffplay for playback, and ffprobe for media analysis, supported by vital libraries like libavcodec and libavformat. Widely integrated into platforms like YouTube and Bilibili and software like VLC, FFmpeg is essential for modern digital media infrastructure. Recently, it was identified as containing critical, decades-old vulnerabilities discovered by Anthropic's Mythos AI model, leading to its inclusion in the 100-day 'Project Glass Wing' cybersecurity initiative alongside industry giants like Apple, Microsoft, and Google to patch these flaws.

Referenced in 1 Document
Research Data
Extracted Attributes
  • Field

    Multimedia Processing and Transcoding

  • License

    LGPL-2.1-or-later or GPL-2.0-or-later

  • Core Components

    ffmpeg, ffplay, ffprobe

  • Primary Libraries

    libavcodec, libavformat, libavfilter

  • Supported Platforms

    Windows, macOS, Linux

  • Vulnerability Status

    Critical, decades-old flaws discovered by Mythos AI

Timeline
  • Initial development and copyright commencement by FFmpeg developers. (Source: ffmpeg 8.1 Download Free - VideoHelp)

    2000-01-01

  • Release of FFmpeg 6.0 'Von Neumann', introducing new encoders, decoders, and ABI versioning changes. (Source: ffmpeg.org)

    2023-02-28

  • Release of FFmpeg 6.0.1 as a stable update to the 6.0 branch. (Source: ffmpeg 8.1 Download Free - VideoHelp)

    2023-11-10

  • Release of FFmpeg 6.1 'Heaviside', the latest stable release from the 6.1 branch. (Source: ffmpeg 8.1 Download Free - VideoHelp)

    2023-11-11

  • Anthropic's Mythos model discovers critical vulnerabilities in FFmpeg, leading to the formation of Project Glass Wing. (Source: fccfeb90-332d-499c-b8d7-0026207a2740)

    2024-01-01

FFmpeg

FFmpeg is a free and open-source software project consisting of a suite of libraries and programs for handling video, audio, and other multimedia files and streams. At its core is the command-line ffmpeg tool itself, designed for processing video and audio files. It is widely used for format transcoding, basic editing (trimming and concatenation), video scaling, video post-production effects, and standards compliance (SMPTE, ITU). FFmpeg also includes other tools: ffplay, a simple media player, and ffprobe, a command-line tool to display media information. Among included libraries are libavcodec, an audio/video codec library used by many commercial and free software products, libavformat (Lavf), an audio/video container mux and demux library, and libavfilter, a library for enhancing and editing filters through a GStreamer-like filtergraph. FFmpeg is part of the workflow of many other software projects, and its libraries are a core part of software media players such as VLC, and has been included in core processing for YouTube and Bilibili. Encoders and decoders for many audio and video file formats are included, making it highly useful for the transcoding of common and uncommon media files. FFmpeg is published under the LGPL-2.1-or-later or GPL-2.0-or-later, depending on which options are enabled.

Web Search Results
  • ffmpeg(1): FFmpeg video converter - Linux man page

    # ffmpeg(1) - Linux man page ## Name ffmpeg - FFmpeg video converter ## Synopsis ffmpeg ... {[outfile options] outfile}... ## Description As a general rule, options are applied to the next specified file. Therefore, order is important, and you can have the same option on the command line multiple times. Each occurrence is then applied to the next input or output file. \ To set the video bitrate of the output file to 64kbit/s: ``` ffmpeg -i input.avi -b 64k output.avi ``` \ To force the frame rate of the output file to 24 fps: ``` ffmpeg -i input.avi -r 24 output.avi ``` \ To force the frame rate of the input file (valid for raw formats only) to 1 fps and the frame rate of the output file to 24 fps: ``` ffmpeg -r 1 -i input.m2v -r 24 output.avi ``` [...] desired audio language. NOTE: To see the supported input formats, use "ffmpeg -formats". \ You can extract images from a video, or create a video from many images: For extracting images from a video: ``` ffmpeg -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg ``` This will extract one video frame per second from the video and will output them in files named foo-001.jpeg, foo-002.jpeg, etc. Images will be rescaled to fit the new WxH values. If you want to extract just a limited number of frames, you can use the above command in combination with the -vframes or -t option, or in combination with -ss to start extracting from a certain point in time. For creating a video from many images: ``` ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi ``` The syntax "foo-%03d.jpeg" specifies to use a [...] A preset file contains a sequence of option=value pairs, one for each line, specifying a sequence of options which would be awkward to specify on the command line. Lines starting with the hash ('#') character are ignored and are used to provide comments. Check the ffpresets directory in the FFmpeg source tree for examples. Preset files are specified with the "vpre", "apre", "spre", and "fpre" options. The "fpre" option takes the filename of the preset instead of a preset name as input and can be used for any kind of codec. For the "vpre", "apre", and "spre" options, the options specified in a preset file are applied to the currently selected codec of the same type as the preset option. The argument passed to the "vpre", "apre", and "spre" preset options identifies the preset file to use

  • ffmpeg Documentation

    ## 1 Synopsis ffmpeg [global\_options] {[input\_file\_options] -i `input_url`} ... {[output\_file\_options] `output_url`} ... ## 2 Description `ffmpeg` is a universal media converter. It can read a wide variety of inputs - including live grabbing/recording devices - filter, and transcode them into a plethora of output formats. `ffmpeg` reads from an arbitrary number of inputs (which can be regular files, pipes, network streams, grabbing devices, etc.), specified by the `-i` option, and writes to an arbitrary number of outputs, which are specified by a plain output url. Anything found on the command line which cannot be interpreted as an option is considered to be an output url. [...] ``` ffmpeg -i input.avi -b:v 64k -bufsize 64k output.mp4 ``` Force the frame rate of the output file to 24 fps: ``` ffmpeg -i input.avi -r 24 output.mp4 ``` Force the frame rate of the input file (valid for raw formats only) to 1 fps and the frame rate of the output file to 24 fps: ``` ffmpeg -r 1 -i input.m2v -r 24 output.mp4 ``` The format option may be needed for raw input files. ## 3 Detailed description `ffmpeg` builds a transcoding pipeline out of the components listed below. The program’s operation then consists of input data chunks flowing from the sources down the pipes towards the sinks, while being transformed by the components they encounter along the way. The following kinds of components are available:

  • FFmpeg - Ultimate Guide | IMG.LY Blog

    ### FFmpeg CLI Finally, we arrived at FFmpeg, and trust me, we'll execute it quite a lot of times! Let's see how FFmpeg's command line options are organized, as that is the first tricky part we need to understand! FFmpeg mostly thinks about input and output files and their options together with global options. You specify input files with the "-i" flag followed by a file name. For the output file, specify it as-is without any preceding CLI (command line interface) flag. ### Specifying an input file Let's specify just an input file: ``` ffmpeg -i bbb_sunflower_1080p_60fps_normal.mp4 ``` The following image helps to understand the output: [...] ### Choosing a format FFmpeg is quite smart, and by the extension, it can determine which codec to use. If you specify "audio.wav" or "audio.mp3" for example, FFmpeg will use the appropriate codec to do the encoding. It is perfectly guessing most of the time. But if you want to specify the format manually, then the "-f" flag is your friend. For this, you might want to consult the list of formats: ``` ffmpeg -formats ``` So, these three commands will do exactly the same, but the last two requires the -f flag. [...] For those who are just joining in: please get the example assets if you want to test out the commands shown in this chapter! ### Inputs Let's see the common ways FFmpeg is fed with different data! ### File Of course, you have already seen that if you have a local file on your filesystem, FFmpeg is happy to read it! ``` ffmpeg -i bbb_sunflower_1080p_60fps_normal.mp4 -map 0:1 stereo_audio_only.wav ``` This command which is exactly the same as one of our previous ones just reads a local file. Really, that's it. ### Network Did you know, that FFmpeg can open a file directly on the network?! ``` ffmpeg -t 5 -i bbb_first_5_seconds.mp4 ``` The command above opens the file directly from the network and saves the first 5 seconds into a local file!

  • FFmpeg

    ffmpeg -i /dev/video0 -listen 1 -f matroska \ -c:v libx264 -preset fast -tune zerolatency ffplay The next part of the project was to extend the code to be able to accept several clients, simultaneously or consecutively. Since libavformat did not have an API for that kind of task, it was necessary to design one. This part was mostly completed before the midterm and applied shortly afterwards. Since the ffmpeg command-line tool is not ready to serve several clients, the test ground for that new API is an example program serving hard-coded content. [...] ### February 28th, 2023, FFmpeg 6.0 "Von Neumann" A new major release, FFmpeg 6.0 "Von Neumann", is now available for download. This release has many new encoders and decoders, filters, ffmpeg CLI tool improvements, and also, changes the way releases are done. All major releases will now bump the version of the ABI. We plan to have a new major release each year. Another release-specific change is that deprecated APIs will be removed after 3 releases, upon the next major bump. This means that releases will be done more often and will be more organized. [...] Umair Khan updated and integrated the ALS encoder to fit in the current FFmpeg codebase. He also implemented a missing feature for the ALS decoder that enables floating-point sample decoding. FFmpeg support for MPEG-4 ALS has been improved significantly by Umair's work. We welcome him to keep maintaining his improvements and hope for great contributions to come. #### Tee muxer improvements (Mentor: Marton Balint)

  • ffmpeg 8.1 Download Free - VideoHelp

    Software Home » Video Encoders / Converters Tool ## Description Type Rating Reviews ffmpeg NEW VERSION 8.1 FFmpeg is a complete solution to record, convert, edit and stream audio and video. It is a command line video software for Windows, Mac and Linux. It supports converting between most video and audio formats. It supports grabbing and encoding in real time from streaming media, capture cards, etc. Multiplex(join) and demultipex(split) video and audio tracks from all video formats. Edit(cut,join) all video formats. Advanced video and audio filters. Subtitle support. ffplay(basic video player) and ffprobe(video identifier) are also included. Several frontEnds/GUIs are available like FFmpeg Batch Converter or clever FFMPEG-GUI. [...] Report! @gripweed This download is v6.1. ffmpeg version 6.1-full\_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12.2.0 (Rev10, Built by MSYS2 project) FFmpeg 6.1 "Heaviside" 6.1 was released on 2023-11-11. It is the latest stable FFmpeg release from the 6.1 release branch, which was cut from master on 2023-10-29. FFmpeg 6.0.1 "Von Neumann" 6.0.1 was released on 2023-11-10. It is the latest stable FFmpeg release from the 6.0 release branch, which was cut from master on 2023-02-19. Review by HemLok on Nov 11, 2023 Version: 6.1 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10 Report! All is well but shouldn't this be listed as 6.0.1 and not 6.1?