Ffmpeg documentation all. When you configure your F...
Ffmpeg documentation all. When you configure your FFmpeg build, all the supported protocols are enabled by default. org/ffmpeg-filters. If the media is incompatible for any reason, Jellyfin will use FFmpeg to convert the media to a format that the client can process. html#gfxcapture A stream specifier can match several streams, so that the option is applied to all of them. tv or similar services (rtmp protocol), using ffmpeg 1. Quick reference for developers. libavcodec encoding/decoding library libavfilter graph-based frame editing library libavformat I/O and muxing/demuxing library libavdevice special devices muxing/demuxing library libavutil common utility library HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder. You usually only have to specify the target bitrate you want. Covers format conversion, filters, cutting, merging, GIF creation, streaming, and more. I have attached the original reference to each command, filter, flag, keyword, and explanation. Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. 1 Filtering 3. License FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. It includes the following library versions: FFmpeg Media adds queue-based video transcoding, field mapping, and optional HLS/DASH streaming to Drupal Media workflows for Drupal 11. An empty stream specifier matches all streams. 0 or ffmpeg-git (tested on 2012-11-12), this is also for pulseaudio users: Example 1, no sound: Luckily the documentation for FFmpeg and the project's other tools is very good and worth checking out. FFmpeg introduction Developers of FFmpeg Participation in FFmpeg development FFmpeg download Command Line Syntax Windows Command Prompt and its alternatives Path A stream specifier can match several streams, so that the option is applied to all of them. FFmpeg has always been a very experimental and developer-driven project. 2 Stream copy 3. Master the FFmpeg command syntax with this in-depth guide. The goal is to Direct Play all media. g. 3+/12 with PHP 8. This is the default AAC encoder. libavcodec encoding/decoding library libavfilter graph-based frame editing library libavformat I/O and muxing/demuxing library libavdevice special devices muxing/demuxing library libavutil common utility library Jul 22, 2011 · A new major release, FFmpeg 8. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter. Consult your locally installed documentation for older versions. What is ffmpeg? FFmpeg is a powerful, versatile multimedia tool that handles decoding, encoding, streaming, and more for almost any format. mp4 from the webcam without audio, assuming that the webcam is correctly recognized under /dev/video0:. Jellyfin-ffmpeg usually ships with our deb package, official Docker images and Windows installers. Learn how to handle complex scenarios and edge-cases with examples. 2 Stream FFmpeg README FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata. This comprehensive guide covers what FFmpeg is, how to download and install it, and its common use-cases. For example, -codec copy or -codec: copy would copy all the streams without reencoding. subtitles. 1. ), specified by the -i option, and writes to an arbitrary number of outputs, which are specified by a plain output url. Learn how this powerful tool can handle multimedia data in various formats, from conversion to streaming. Direct Stream will occur if the audio, container or subtitles happen to not be supported. Note: Changing frame rates requires the video to be re-encoded. You can use the following command to achieve this: ffmpeg -i INPUT -vf "split [main] [tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main] [flip] overlay=0:H/2" OUTPUT 1 Description This document describes the codecs (decoders and encoders) provided by the libavcodec library. FFmpeg Documentation Introduction This document describes the usage of the different libraries provided by FFmpeg. FFmpeg can also convert from any sample rate to any other Chapter 1: FFmpeg Fundamentals Chapter 2: Displaying Help and Features Chapter 3: Frame Rate, Bit Rate and File Size Chapter 4: Resizing and Scaling Video Chapter 5: Cropping Video Chapter 6: Padding Video Chapter 7: Flipping and Rotating Video Chapter 8: Blur, Sharpen and Other Denoising Chapter 9: Overlay - Picture in Picture Documentation The following documentation is regenerated nightly, and corresponds to the newest FFmpeg revision. A handful of other attributes have to match as well, like the stream aspect ratio. Thanks to several delays, and modernization of our entire infrastructure, this release ended up being one of our largest releases to date. In addition, each codec may support so-called private options, which are specific for a given codec. libavcodec is a library containing decoders and encoders for audio/video codecs. 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: Simple examples -map 0 From input index #0 (the 1st input) select all streams. The following command will record a video webcam. 0 "Huffman", is now available for download. The number of options and possibilities with FFmpeg is vast, and it’s worth exploring the FFmpeg documentation and FFmpeg wiki to learn more about the tool and its capabilities. x. 1 Simple filtergraphs 3. It can also capture and encode in real-time from various hardware and software sources [36] such as a TV capture card. avi -r 24 output. This detailed guide shows how to install ffmpeg in Ubuntu and other Linux distributions. FFmpeg made easy with ffmpeg. It can also grab from a live audio/video source. Contribute to bytedeco/javacv development by creating an account on GitHub. Instructions Documentation The offline documentation is available in the doc/ directory. This wiki page is for user contributed examples and tips, and contributions to this page are encouraged. , 1920⨉1080 pixels) and should have the same framerate. This filtergraph splits the input stream in two streams, then sends one stream through the crop filter and the vflip filter, before merging it back with the other stream by overlaying it on top. ffplay is a simple media player utilizing SDL and the FFmpeg libraries. Supports Android, Flutter, iOS, Linux, macOS, React Native and tvOS. - arthenica/ffmpeg-kit You can see available presets (including lossless for both hevc and h264), other options, and encoder info with ffmpeg -h encoder=h264_nvenc or ffmpeg -h encoder=hevc_nvenc. FFmpeg README FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata. ffmpeg -i input. 2 Codec Options libavcodec provides some generic global options, which can be set on all the encoders and decoders. 2 Description FFplay is a very simple and portable media player using the FFmpeg libraries and the SDL library. It will select that stream based upon the following criteria: for video, it is the stream with the highest resolution, for audio, it is the stream with the most channels, Clear, practical FFmpeg documentation with real-world examples and tutorials 1. Github pull requests should be avoided because they are not part of our review process and will be ignored. Example Process the audio and video portions of a stream independently: Complete FFmpeg API reference with all endpoints, request/response formats, parameters, and examples. stream. When the frame rate is changed, ffmpeg will drop or duplicate frames as necessary to achieve the targeted output frame rate. 5+ and FFmpeg 8. ffmpeg Documentation: Table of Contents 1 Synopsis 2 Description 3 Detailed description 3. In short, its new features are: A new class of decoders and encoders based on pure Vulkan compute implementation have been added. FFmpeg Kit for applications. Here is how you stream to twitch. info – your go-to cheat sheet for audio, video, and image processing tricks, whether you're new or experienced. Supersedes MobileFFmpeg, flutter_ffmpeg and react-native-ffmpeg. This post introduces 31 most commonly used FFmpeg commands with examples to perform various tasks, including converting media formats, trimming videos, etc. Highly portable, it works across major OSes and hardware configurations. Many options are passed to the encoder with -svtav1-params. Examples Coding examples are available in the doc/examples directory. The following documentation is regenerated nightly, and corresponds to the newest FFmpeg revision. Therefore, you may at least have to add a scale or scale2ref filter before concatenating videos. 1 If you are unsure how best to do this, send a patch to ffmpeg-devel, the documentation maintainer (s) will review and commit your stuff. audio is a shorthand for stream['a']. Jun 14, 2025 · FFmpeg is an open-source media tool you can use to convert any video format into the one you need. Complete FFmpeg command reference for video/audio processing. This guide provides a quick primer on how to get started and use FFmpeg for various video processing tasks, along with some simple examples. You can list all available ones using the configure option "–list-protocols". Documentation Refer to the FFmpeg filters documentation for more information and examples for each filter. Possible forms of stream specifiers are: stream_index For the concat filter to work, the inputs have to be of the same frame dimensions (e. For a full list of options, check the documentation of the gfxcapture filter: https://ffmpeg. For each acceptable stream type, ffmpeg will pick one stream, when available, from among all the inputs. -map 3:s:4 From input index #3 (the 4th input) select subtitle stream index #4 (the fifth subtitle stream). Possible forms of stream specifiers are: stream_index Table of Contents 1 Synopsis 2 Description 3 Detailed description 3. -map 1:a From input index #1 (the 2nd input) select all audio streams. ffmpeg is a command-line tool that converts audio or video formats. the stream specifier in -b:a 128k matches all audio streams. This means the container, video, audio and subtitles are all compatible with the client. The online documentation is available in the main website and in the wiki. Use these to dig deeper into FFmpeg, and in general - video formats. ffmpeg is a very fast video and audio converter that can also grab from a live audio/video source. See also FFmpeg documentation, the upstream encoder user guide and list of all parameters. It also demonstrates some useful ffmpeg commands for practical usage. It is a key component in many multimedia projects and has new features added constantly. The tool is command-line only, so it doesn't have a graphical, clickable interface. A detailed explanation of how the fps filter in ffmpeg decides to drop/duplicate frames is given in this post. Refer to the documentation of the filter for more info. It includes the following library versions: Master the FFmpeg command syntax with this in-depth guide. -map 0 -map -0:s Will select all streams from input index #0 (the 1st input) except This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio. At its core is the command-line ffmpeg tool itself, designed for processing video and audio files. For those who would like to integrate FFmpeg's Vulkan code to demux, parse, decode, and receive a VkImage to present or manipulate, documentation and examples are available in our source tree. All sample commands can immediately run from your local machine, since they use sample files that are stored online and FFmpeg is able to download them locally. A stream specifier can match several streams, so that the option is applied to all of them. FFmpeg includes the video4linux2 and ALSA input devices that enable capturing webcam and audio input. Sometimes, a global option may only affect a specific kind of codec FFmpeg Libraries for developers libavutil is a library containing functions for simplifying programming, including random number generators, data structures, mathematics routines, core multimedia utilities, and much more. Learn, automate, troubleshoot, and more! ffmpeg is a very fast video and audio converter that can also grab from a live audio/video source. Amongst lots of other changes, it includes all changes from ffmpeg-mt, libav master of 2015-08-28, libav 11 as of 2015-08-28. Important discussions should be accessible to all. ffprobe is a command-line tool to display media information (text, CSV, XML, JSON), see also MediaInfo. E. It is mostly used as a testbed for the various FFmpeg APIs. It'll teach you all about the many different tricks this dog can do. This is currently the second highest-quality AAC encoder available in FFmpeg and does not require an external library like the other AAC encoders described here. 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. libavformat is a library containing demuxers and muxers for multimedia container formats Using FFmpeg binaries downloaded from somewhere else will result in partial acceleration. If the video codec is unsupported, this will The following documentation is regenerated nightly, and corresponds to the newest FFmpeg revision. For options available in your specific build of FFmpeg, see ffmpeg -help encoder=libsvtav1. 2 Complex filtergraphs 3. The command line interface is designed to be intuitive, in the sense that FFmpeg tries to figure out all parameters that can possibly be derived automatically. Nov 20, 2025 · FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. ffmpeg reads from an arbitrary number of inputs (which can be regular files, pipes, network streams, grabbing devices, etc. Introduction FFmpeg is a very fast video and audio converter. Java interface to OpenCV, FFmpeg, and more. Possible forms of stream specifiers are: stream_index Native FFmpeg AAC Encoder (aac) The native FFmpeg AAC encoder. To enable support, FFmpeg needs to be built with --enable-libsvtav1. giis, 1ex1ug, 85pd, ntpva, i9dff, egnb0, wbiqv, alz3m, t8unk, kckb,