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README
LGPL-3.0

FFmpegKit GitHub release Maven Central CocoaPods Build Status

FFmpeg Kit for applications.

1. Features

  • Scripts to build FFmpeg libraries
  • FFmpegKit wrapper library to run FFmpeg/FFprobe commands in applications
  • Supports Android, iOS, macOS and tvOS
  • Based on FFmpeg v4.4-dev with optional system and external libraries
  • 8 prebuilt binary packages available at Github, Maven Central and CocoaPods.
  • Licensed under LGPL 3.0, or 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. Build Scripts

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

All scripts support additional options to enable optional libraries and disable platform architectures.

5. 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 has a Java API and Apple libraries (iOS, macOS, tvOS) have an Objective-C API, which are identical in terms of features and capabilities.

6. Binary Packages

There are eight different ffmpeg-kit packages distributed on Github, Maven Central and CocoaPods. 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
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
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
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 tvOS LTS releases

7. Versions

FFmpegKit binaries generated use the same major and minor version numbers as the upstream FFmpeg project. The exact version number is obtained using git describe --tags. dev part in FFmpeg version number indicates that FFmpeg source is cloned from the FFmpeg master branch.

FFmpegKit Version FFmpeg Version Release Date
4.4 4.4-dev-3015 Mar 03, 2021
4.4.LTS 4.4-dev-3015 Mar 03, 2021

8. 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
Xcode Compatibility 11.0 or later 7.3.1 or later
iOS SDK 12.1 9.3
iOS AVFoundation Yes -
iOS Architectures arm64
arm64-simulator
arm64-mac-catalyst
x86-64
x86-64-mac-catalyst
armv7
arm64
i386
x86-64
macOS SDK 10.15 10.11
macOS AVFoundation Yes -
macOS Architectures arm64
x86-64
x86-64
tvOS SDK 10.2 9.2
tvOS Architectures arm64
x86-64
arm64-simulator
arm64
x86-64

9. 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, concurrent command execution.

10. License

FFmpegKit is licensed under the LGPL v3.0. However, if source code is built using the optional --enable-gpl flag or prebuilt binaries with -gpl postfix are used, then FFmpegKit is subject to the GPL v3.0 license.

11. 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.

12. Contributing

Feel free to submit issues or pull requests.

Please note that main includes only the latest released source code. Changes planned for the next release are developed under the development branch. Therefore, if you want to create a pull request, please open it against the development.

13. See Also

GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below. 0. Additional Definitions. As used herein, "this License" refers to version 3 of the GNU Lesser General Public License, and the "GNU GPL" refers to version 3 of the GNU General Public License. "The Library" refers to a covered work governed by this License, other than an Application or a Combined Work as defined below. An "Application" is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library. A "Combined Work" is a work produced by combining or linking an Application with the Library. The particular version of the Library with which the Combined Work was made is also called the "Linked Version". The "Minimal Corresponding Source" for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version. The "Corresponding Application Code" for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work. 1. Exception to Section 3 of the GNU GPL. You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL. 2. Conveying Modified Versions. If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version: a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy. 3. Object Code Incorporating Material from Library Header Files. The object code form of an Application may incorporate material from a header file that is part of the Library. You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following: a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the object code with a copy of the GNU GPL and this license document. 4. Combined Works. You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following: a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the Combined Work with a copy of the GNU GPL and this license document. c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document. d) Do one of the following: 0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source. 1) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version. e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.) 5. Combined Libraries. You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following: a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License. b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work. 6. Revised Versions of the GNU Lesser General Public License. The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation. If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.

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FFmpeg Kit for applications. Supports Android, iOS, macOS and tvOS. Supersedes MobileFFmpeg. 展开 收起
LGPL-3.0
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