/ffmpeg-kit

FFmpeg Kit for applications. Supports Android, Flutter, iOS, Linux, macOS, React Native and tvOS. Supersedes MobileFFmpeg, flutter_ffmpeg and react-native-ffmpeg.

Primary LanguageCGNU Lesser General Public License v3.0LGPL-3.0

FFmpegKit GitHub release Maven Central CocoaPods pub npm

FFmpegKit is a collection of tools to use FFmpeg in Android, iOS, Linux, macOS, tvOS, Flutter and React Native applications.

It includes scripts to build FFmpeg native libraries, a wrapper library to run FFmpeg/FFprobe commands in applications and 8 prebuilt binary packages available at Github, Maven Central, CocoaPods, pub and npm.

1. Features

  • Scripts to build FFmpeg native libraries
  • FFmpegKit wrapper library to run FFmpeg/FFprobe commands in applications
  • Supports native platforms: Android, iOS, Linux, macOS and tvOS
  • Supports hybrid platforms: Flutter, React Native
  • Based on FFmpeg v4.5-dev or later with optional system and external libraries
  • 8 prebuilt binary packages available at Github, Maven Central, CocoaPods, pub and npm
  • Licensed under LGPL 3.0 by default, GPL v3.0 if GPL licensed libraries are enabled

2. Android

See Android to learn more about FFmpegKit for Android.

3. iOS, macOS, tvOS

See Apple to use FFmpegKit on Apple platforms (iOS, macOS, tvOS).

4. Flutter

See Flutter to learn more about FFmpegKit for Flutter.

5. Linux

See Linux to learn more about FFmpegKit for Linux.

6. React Native

See React Native to learn more about FFmpegKit for React Native.

7. Build Scripts

Use android.sh, ios.sh, linux.sh, macos.sh and tvos.sh to build FFmpegKit for each native platform.

All scripts support additional options to enable optional libraries and disable platform architectures. See Building wiki page for the details.

8. FFmpegKit Library

FFmpegKit is a wrapper library that allows you to easily run FFmpeg/FFprobe commands in applications. It provides additional features on top of FFmpeg to enable platform specific resources, control how commands are executed and how the results are handled.

Android library of FFmpegKit has a Java API, Apple libraries (iOS, macOS, tvOS) have an Objective-C API, Flutter library comes with a Dart API, Linux library has a C++ API and React Native library provides a JavaScript API with Typescript definitions, which are identical in terms of features and capabilities.

9. Packages

There are eight different ffmpeg-kit packages distributed on Github, Maven Central, CocoaPods, pub and npm. Below you can see which system libraries and external libraries are enabled in each one of them.

Please remember that some parts of FFmpeg are licensed under the GPL and only GPL licensed ffmpeg-kit packages include them.

min min-gpl https https-gpl audio video full full-gpl
external libraries - vid.stab
x264
x265
xvidcore		 gmp
gnutls		 gmp
gnutls
vid.stab
x264
x265
xvidcore		 lame
libilbc
libvorbis
opencore-amr
opus
shine
soxr
speex
twolame
vo-amrwbenc		 dav1d
fontconfig
freetype
fribidi
kvazaar
libass
libiconv
libtheora
libvpx
libwebp
snappy
zimg		 dav1d
fontconfig
freetype
fribidi
gmp
gnutls
kvazaar
lame
libass
libiconv
libilbc
libtheora
libvorbis
libvpx
libwebp
libxml2
opencore-amr
opus
shine
snappy
soxr
speex
twolame
vo-amrwbenc
zimg		 dav1d
fontconfig
freetype
fribidi
gmp
gnutls
kvazaar
lame
libass
libiconv
libilbc
libtheora
libvorbis
libvpx
libwebp
libxml2
opencore-amr
opus
shine
snappy
soxr
speex
twolame
vid.stab
vo-amrwbenc
x264
x265
xvidcore
zimg
android system libraries zlib
MediaCodec
ios system libraries bzip2
AudioToolbox
AVFoundation
iconv
VideoToolbox
zlib
macos system libraries bzip2
AudioToolbox
AVFoundation
Core Image
iconv
OpenCL
OpenGL
VideoToolbox
zlib
tvos system libraries bzip2
AudioToolbox
iconv
VideoToolbox
zlib
  • AVFoundation is not available on tvOS
  • VideoToolbox is not available on LTS releases of iOS and tvOS
  • zimg is supported since v4.5.1

10. Versions

FFmpegKit binaries generated use the same major and minor version numbers as the upstream FFmpeg project. The third and last number in the version string, if exists, is specific to FFmpegKit. It shows different releases from the same FFmpeg release branch.

dev part in the version string indicates that FFmpeg source code is cloned from the FFmpeg master branch and the exact version number of FFmpeg is obtained using the git describe --tags command.

Platforms FFmpegKit Version FFmpeg Version Release Date
Flutter 6.0.3 6.0 Sep 19, 2023
React Native 6.0.2 6.0 Sep 19, 2023
Flutter 6.0.2 6.0 Sep 03, 2023
React Native 6.0.1 6.0 Sep 03, 2023
Flutter 6.0.1 6.0 Sep 03, 2023
React Native 6.0.0 6.0 Aug 27, 2023
Flutter 6.0.0 6.0 Aug 27, 2023
Android
Apple		 6.0 6.0 Aug 21, 2023
React Native 5.1.0 5.1.2 Oct 02, 2022
Flutter 5.1.0 5.1.2 Oct 02, 2022
Android
Apple		 5.1 5.1.2 Sep 29, 2022
React Native 4.5.2 4.5-dev-3393 May 25, 2022
Flutter 4.5.1 4.5-dev-3393 Jan 02, 2022
React Native 4.5.1 4.5-dev-3393 Jan 02, 2022
Android 4.5.1 4.5-dev-3393 Jan 01, 2022
Apple 4.5.1 4.5-dev-3393 Dec 30, 2021
Flutter 4.5.0 4.5-dev-2008 Oct 05, 2021
React Native 4.5.0 4.5-dev-2008 Oct 01, 2021
Android
Apple		 4.5 4.5-dev-2008 Sep 18, 2021
Android
Apple		 4.4 4.4-dev-3015 Mar 03, 2021

11. LTS Releases

FFmpegKit binaries are published in two release variants: Main Release and LTS Release.

  • Main releases include complete functionality of the library and support the latest SDK/API features.

  • LTS releases are customized to support a wider range of devices. They are built using older API/SDK versions, so some features are not available on them.

This table shows the differences between two variants.

Main Release LTS Release
Android API Level 24 16
Android Camera Access Yes -
Android Architectures arm-v7a-neon
arm64-v8a
x86
x86-64		 arm-v7a
arm-v7a-neon
arm64-v8a
x86
x86-64
iOS Min SDK 12.1 10
iOS VideoToolbox Yes -
iOS AVFoundation Yes -
iOS Architectures arm64
arm64-simulator
arm64-mac-catalyst
x86-64
x86-64-mac-catalyst		 armv7
arm64
i386
x86-64
iOS Bundle Format XCFrameworks Frameworks
Mac Catalyst Min Version 14.0 -
macOS Min SDK 10.15 10.12
macOS AVFoundation Yes -
macOS Architectures arm64
x86-64		 x86-64
macOS Bundle Format XCFrameworks Frameworks
tvOS Min SDK 11.0 10.0
tvOS VideoToolbox Yes -
tvOS Architectures arm64
x86-64
arm64-simulator		 arm64
x86-64
tvOS Bundle Format XCFrameworks Frameworks

12. Documentation

A more detailed documentation is available under Wiki.

13. Test Applications

You can see how FFmpegKit is used inside an application by running test applications created under FFmpegKit Test project.

All applications are identical and supports command execution, video encoding, accessing https urls, encoding audio, burning subtitles, video stabilisation, pipe operations and concurrent command execution.

14. License

FFmpegKit library alone is licensed under the LGPL v3.0.

FFmpegKit bundles (.aar archives, frameworks, xcframeworks), which include both FFmpegKit and FFmpeg libraries, are also licensed under the LGPL v3.0. However, if the source code is built using the optional --enable-gpl flag or prebuilt binaries with -gpl postfix are used, then FFmpegKit bundles become subject to the GPL v3.0. Because, FFmpeg is licensed under the GPL v3.0 in those bundles. And that makes the whole bundle effectively subject to the GPL v3.0.

FFmpegKit build scripts always configure FFmpeg with --enable-version3 option. And never enable non-free libraries. Thus, FFmpeg libraries created by FFmpegKit are licensed under the LGPL v3.0 by default. Only when --enable-gpl is provided they become subject to GPL v3.0. That is how prebuilt binaries with -gpl postfix are compiled.

Refer to Licenses to see the licenses of all libraries. Trademark lists the trademarks used in the FFmpegKit documentation.

15. Patents

It is not clearly explained in their documentation, but it is believed that FFmpeg, kvazaar, x264 and x265 include algorithms which are subject to software patents. If you live in a country where software algorithms are patentable then you'll probably need to pay royalty fees to patent holders. We are not lawyers though, so we recommend that you seek legal advice first. See FFmpeg Patent Mini-FAQ.

openh264 clearly states that it uses patented algorithms. Therefore, if you build ffmpeg-kit with openh264 and distribute that library, then you are subject to pay MPEG LA licensing fees. Refer to OpenH264 FAQ page for the details.

16. Contributing

See our CONTRIBUTING guide.

17. See Also