FFmpegKit for React Native

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- Includes both FFmpeg and FFprobe
- Supports
- Both Android and iOS
- FFmpeg v6.0
- arm-v7a, arm-v7a-neon, arm64-v8a, x86 and x86_64 architectures on Android
- Android API Level 24 or later
- API Level 16 on LTS releases
- armv7, armv7s, arm64, arm64-simulator, i386, x86_64, x86_64-mac-catalyst and arm64-mac-catalyst architectures on iOS
- iOS SDK 12.1 or later
- iOS SDK 10 on LTS releases
- Can process Storage Access Framework (SAF) Uris on Android
- 25 external libraries

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

- 4 external libraries with GPL license

vid.stab, x264, x265, xvidcore

- zlib and MediaCodec Android system libraries
- bzip2, iconv, libuuid, zlib system libraries and AudioToolbox, VideoToolbox, AVFoundation system frameworks on iOS

- Includes Typescript definitions
- Licensed under LGPL 3.0 by default, some packages licensed by GPL v3.0 effectively

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``sh
yarn add react-native-ffmpeg-kit
`

#### 2.1 Packages

FFmpeg includes built-in encoders for some popular formats. However, there are certain external libraries that needs
to be enabled in order to encode specific formats/codecs. For example, to encode an mp3 file you need lame or
shine library enabled. You have to install a react-native-ffmpeg-kit package that has at least one of them inside.
To encode an h264 video, you need to install a package with x264 inside. To encode vp8 or vp9 videos, you need
a react-native-ffmpeg-kit package with libvpx inside.

ffmpeg-kit provides eight packages that include different sets of external libraries. These packages are named
according to the external libraries included. Refer to the
Packages wiki page to see the names of those
packages and external libraries included in each one of them.

##### 2.1.1 Package Names

The following table shows all package names and their respective API levels, iOS deployment targets defined in
react-native-ffmpeg-kit.

Package	Main Release			LTS Release
	Name	Android API Level	iOS Minimum Deployment Target	Name	Android API Level	iOS Minimum Deployment Target
min	min	24	12.1	min-lts	16	10
min-gpl	min-gpl	24	12.1	min-gpl-lts	16	10
https	(*) https	24	12.1	https-lts	16	10
https-gpl	https-gpl	24	12.1	https-gpl-lts	16	10
audio	audio	24	12.1	audio-lts	16	10
video	video	24	12.1	video-lts	16	10
full	full	24	12.1	full-lts	16	10
full-gpl	full-gpl	24	12.1	full-gpl-lts	16	10

(\*) - Main https package is the default package

#### 2.2 Enabling Packages

Installing react-native-ffmpeg-kit enables the https package by default. It is possible to enable other
packages using the instructions below.

##### 2.2.1 Enabling a Package on Android

- Edit android/build.gradle file and add the package name in ext.ffmpegKitPackage variable.

`gradle
buildscript {
ext {
.....
ffmpegKitPackage = "full-gpl"
}
repositories {
google()
mavenCentral()
}
dependencies {
....

}
}

allprojects {
repositories {
google()
mavenCentral()
flatDir {
dirs "$rootDir/libs"
}
}
}

apply plugin: "com.facebook.react.rootproject"

`

- Edit android/app/build.gradle

`gradle
import java.net.URL // Add this line on top of the file

android {
.......

// Add this code for accessing the file locally after downloading
repositories {
flatDir {
dirs "$rootDir/libs"
}
}
}

dependencies {

// Add the following dependencies
implementation(name: 'ffmpeg-kit-full-gpl', ext: 'aar')
implementation 'com.arthenica:smart-exception-java:0.2.1'

........
}

// Add the following script to download the file from the cloud
afterEvaluate {
def aarUrl = 'https://github.com/NooruddinLakhani/ffmpeg-kit-full-gpl/releases/download/v1.0.0/ffmpeg-kit-full-gpl.aar'
def aarFile = file("${rootDir}/libs/ffmpeg-kit-full-gpl.aar")

tasks.register("downloadAar") {
doLast {
if (!aarFile.parentFile.exists()) {
println "📁 Creating directory: ${aarFile.parentFile.absolutePath}"
aarFile.parentFile.mkdirs()
}
if (!aarFile.exists()) {
println "⏬ Downloading AAR from $aarUrl..."
new URL(aarUrl).withInputStream { i ->
aarFile.withOutputStream { it << i }
}
println "✅ AAR downloaded to ${aarFile.absolutePath}"
} else {
println "ℹ️ AAR already exists at ${aarFile.absolutePath}"
}
}
}

// Make sure the AAR is downloaded before compilation begins
preBuild.dependsOn("downloadAar")
}
`

- Modify package.json and add the following script to download the file from the cloud after executing yarn install or npn install

`json
"scripts": {
...
"postinstall": "cd android && ./gradlew :app:downloadAar"
},
`

##### 2.2.2 Enabling a Package on iOS

- Edit ios/Podfile file and add the package name as subspec. After that run pod install again.

`ruby
pod 'react-native-ffmpeg-kit', :subspecs => [''], :podspec => '../node_modules/react-native-ffmpeg-kit/react-native-ffmpeg-kit.podspec'
`

- Note that if you have use_native_modules! in your Podfile, specifying a subspec may cause the following error.
You can fix it by defining react-native-ffmpeg-kit dependency before use_native_modules! in your Podfile.

`
[!] There are multiple dependencies with different sources for react-native-ffmpeg-kit in Podfile:

- react-native-ffmpeg-kit (from ../node_modules/react-native-ffmpeg-kit)
- react-native-ffmpeg-kit/video (from ../node_modules/react-native-ffmpeg-kit/react-native-ffmpeg-kit.podspec)
`

#### 2.3 Enabling LTS Releases

In order to install the LTS variant, install the https-lts package using instructions in 2.2 or append -lts to
the package name you are using.

#### 2.4 LTS Releases

react-native-ffmpeg-kit is published in two variants: Main Release and LTS Release. Both releases share the
same source code but is built with different settings (Architectures, API Level, iOS Min SDK, etc.). Refer to the
LTS Releases wiki page to see how they differ from each
other.

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1. Execute FFmpeg commands.

`js
import { FFmpegKit } from 'react-native-ffmpeg-kit';

FFmpegKit.execute('-i file1.mp4 -c:v mpeg4 file2.mp4').then(
async (session) => {
const returnCode = await session.getReturnCode();

if (ReturnCode.isSuccess(returnCode)) {
// SUCCESS
} else if (ReturnCode.isCancel(returnCode)) {
// CANCEL
} else {
// ERROR
}
}
);
`

2. Each execute call creates a new session. Access every detail about your execution from the
session created.

`js
FFmpegKit.execute('-i file1.mp4 -c:v mpeg4 file2.mp4').then(
async (session) => {
// Unique session id created for this execution
const sessionId = session.getSessionId();

// Command arguments as a single string
const command = session.getCommand();

// Command arguments
const commandArguments = session.getArguments();

// State of the execution. Shows whether it is still running or completed
const state = await session.getState();

// Return code for completed sessions. Will be undefined if session is still running or FFmpegKit fails to run it
const returnCode = await session.getReturnCode();

const startTime = session.getStartTime();
const endTime = await session.getEndTime();
const duration = await session.getDuration();

// Console output generated for this execution
const output = await session.getOutput();

// The stack trace if FFmpegKit fails to run a command
const failStackTrace = await session.getFailStackTrace();

// The list of logs generated for this execution
const logs = await session.getLogs();

// The list of statistics generated for this execution (only available on FFmpegSession)
const statistics = await session.getStatistics();
}
);
`

3. Execute FFmpeg commands by providing session specific execute/log/session callbacks.

`js
FFmpegKit.executeAsync(
'-i file1.mp4 -c:v mpeg4 file2.mp4',
(session) => {
// CALLED WHEN SESSION IS EXECUTED
},
(log) => {
// CALLED WHEN SESSION PRINTS LOGS
},
(statistics) => {
// CALLED WHEN SESSION GENERATES STATISTICS
}
);
`

4. Execute FFprobe commands.

`js
FFprobeKit.execute(ffprobeCommand).then(async (session) => {
// CALLED WHEN SESSION IS EXECUTED
});
`

5. Get media information for a file/url.

`js
FFprobeKit.getMediaInformation(testUrl).then(async (session) => {
const information = await session.getMediaInformation();

if (information === undefined) {
// CHECK THE FOLLOWING ATTRIBUTES ON ERROR
const state = FFmpegKitConfig.sessionStateToString(
await session.getState()
);
const returnCode = await session.getReturnCode();
const failStackTrace = await session.getFailStackTrace();
const duration = await session.getDuration();
const output = await session.getOutput();
}
});
`

6. Stop ongoing FFmpeg operations.

- Stop all sessions
`js
FFmpegKit.cancel();
`
- Stop a specific session
`js
FFmpegKit.cancel(sessionId);
`

7. (Android) Convert Storage Access Framework (SAF) Uris into paths that can be read or written by
FFmpegKit and FFprobeKit.

- Reading a file:

`js
FFmpegKitConfig.selectDocumentForRead('/').then((uri) => {
FFmpegKitConfig.getSafParameterForRead(uri).then((safUrl) => {
FFmpegKit.executeAsync(-i ${safUrl} -c:v mpeg4 file2.mp4);
});
});
`

- Writing to a file:
`js
FFmpegKitConfig.selectDocumentForWrite('video.mp4', 'video/*').then((uri) => {
FFmpegKitConfig.getSafParameterForWrite(uri).then((safUrl) => {
FFmpegKit.executeAsync(-i file1.mp4 -c:v mpeg4 ${safUrl});
});
});
`

8. Get previous FFmpeg, FFprobe and MediaInformation sessions from the session history.

`js
FFmpegKit.listSessions().then((sessionList) => {
sessionList.forEach(async (session) => {
const sessionId = session.getSessionId();
});
});

FFprobeKit.listFFprobeSessions().then((sessionList) => {
sessionList.forEach(async (session) => {
const sessionId = session.getSessionId();
});
});

FFprobeKit.listMediaInformationSessions().then((sessionList) => {
sessionList.forEach(async (session) => {
const sessionId = session.getSessionId();
});
});
`

9. Enable global callbacks.

- Session type specific Complete Callbacks, called when an async session has been completed

`js
FFmpegKitConfig.enableFFmpegSessionCompleteCallback((session) => {
const sessionId = session.getSessionId();
});

FFmpegKitConfig.enableFFprobeSessionCompleteCallback((session) => {
const sessionId = session.getSessionId();
});

FFmpegKitConfig.enableMediaInformationSessionCompleteCallback((session) => {
const sessionId = session.getSessionId();
});
`

- Log Callback, called when a session generates logs

`js
FFmpegKitConfig.enableLogCallback((log) => {
const message = log.getMessage();
});
`

- Statistics Callback, called when a session generates statistics

`js
FFmpegKitConfig.enableStatisticsCallback((statistics) => {
const size = statistics.getSize();
});
`

10. Register system fonts and custom font directories.

`js
FFmpegKitConfig.setFontDirectoryList([
'/system/fonts',
'/System/Library/Fonts',
'',
]);
`

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You can see how FFmpegKit is used inside an application by running react-native` test applications developed under
the FFmpegKit Test project.

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See Tips wiki page.

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See License wiki page.

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See Patents wiki page.