flutter_ffmpeg/example

flutter_ffmpeg_example

Demonstrates how to use the flutter_ffmpeg plugin.

Getting Started

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>");