flutter_ffmpeg

flutter_ffmpeg

FFmpeg plugin for Flutter. Supports iOS and Android.

1. Features

• Based on MobileFFmpeg

• Supports

  • Both Android and IOS
  • FFmpeg v4.2-dev-x (master) releases
  • arm-v7a, arm-v7a-neon, arm64-v8a, x86 and x86_64 architectures on Android
  • armv7, armv7s, arm64, arm64e, i386 and x86_64 architectures on IOS

  • 24 external libraries

    fontconfig, freetype, fribidi, gmp, gnutls, kvazaar, lame, libaom, libass, libiconv, libilbc, libtheora, libvorbis, libvpx, libwebp, libxml2, opencore-amr, opus, shine, snappy, soxr, speex, twolame, wavpack

  • 4 external libraries with GPL license

    vid.stab, x264, x265, xvidcore

  • zlib and MediaCodec Android system libraries

  • bzip2, zlib IOS system libraries and AudioToolbox, CoreImage, VideoToolbox, AVFoundation IOS system frameworks

• Licensed under LGPL 3.0, can be customized to support GPL v3.0

• Includes eight different packages with different external libraries enabled in FFmpeg

	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 wavpack	fontconfig freetype fribidi kvazaar libaom libass libiconv libtheora libvpx libwebp snappy	fontconfig freetype fribidi gmp gnutls kvazaar lame libaom libass libiconv libilbc libtheora libvorbis libvpx libwebp libxml2 opencore-amr opus shine snappy soxr speex twolame wavpack	fontconfig freetype fribidi gmp gnutls kvazaar lame libaom libass libiconv libilbc libtheora libvorbis libvpx libwebp libxml2 opencore-amr opus shine snappy soxr speex twolame vid.stab wavpack x264 x265 xvidcore
android system libraries	zlib MediaCodec
ios system libraries	zlib AudioToolbox AVFoundation CoreImage VideoToolbox bzip2

2. Installation

Add flutter_ffmpeg as a dependency in your pubspec.yaml file.

2.1 Packages

Default installation of FlutterFFmpeg enables the default package, which is based on https package. It is possible to enable other installed packages using the following steps.

```

```

3. Using

1. Execute commands.

   import 'package:flutter_ffmpeg/flutter_ffmpeg.dart';
   
   final FlutterFFmpeg _flutterFFmpeg = new FlutterFFmpeg();
   
   _flutterFFmpeg.execute("-i file1.mp4 -c:v mpeg4 file2.mp4").then((rc) => print("FFmpeg process exited with rc $rc"));
   

2. Check execution output.

   _flutterFFmpeg.getLastReturnCode().then((rc) => print("Last rc: $rc"));
   _flutterFFmpeg.getLastCommandOutput().then((output) => print("Last command output: $output"));
   

3. Stop an ongoing operation.

   _flutterFFmpeg.cancel();
   

4. Get media information for a file.

   _flutterFFmpeg.getMediaInformation('<file path or uri>').then((info) => print(info));
   

5. List enabled external libraries.

   _flutterFFmpeg.getExternalLibraries().then((packageList) {
        packageList.forEach((value) => print("External library: $value"));
   });
   

6. Enable log callback.

   void logCallback(int level, String message) {
       print(message);
   }
   ...
   _flutterFFmpeg.enableLogCallback(this.logCallback);
   

7. Enable statistics callback.

   void statisticsCallback(int time, int size, double bitrate, double speed, int videoFrameNumber, double videoQuality, double videoFps) {
       print("Statistics: time: $time, size: $size, bitrate: $bitrate, speed: $speed, videoFrameNumber: $videoFrameNumber, videoQuality: $videoQuality, videoFps: $videoFps");
   }
   ...
   _flutterFFmpeg.enableStatisticsCallback(this.statisticsCallback);
   

8. Get last received statistics.

   _flutterFFmpeg.getLastReceivedStatistics().then((stats) => print(stats));
   

9. Set log level.

   _flutterFFmpeg.setLogLevel(LogLevel.AV_LOG_WARNING);
   

10. Register custom fonts directory.

    _flutterFFmpeg.setFontDirectory("<folder with fonts>");
    

4. Versions

4.1 Releases

• 0.1.0 releases is based on FFmpeg v4.2-dev and MobileFFmpeg v4.2.LTS

5. Updates

Refer to Changelog for updates.

6. License

This project is licensed under the LGPL v3.0. However, if installation is customized to use a package with -gpl postfix (min-gpl, https-gpl, full-gpl) then FlutterFFmpeg is subject to the GPL v3.0 license.

Digital assets used in test applications are published in the public domain.

7. Contributing

Feel free to submit issues or pull requests.

8. See Also

• FFmpeg
• Mobile FFmpeg Wiki
• FFmpeg License and Legal Considerations