Welcome to Easy Audio Trimmer! This is a Flutter package that allows you to easily trim audio files within your Flutter app.
- Trim audio files within your Flutter app
- Specify the start and end times for the trimmed audio file
- Audio playback control.
- Retrieving and storing audio file.
- Trimmed audio files are saved on the device
- Easy to use with a simple function call
- Compatible with most audio file formats (mp3, wav, aac, etc.)
- Support for both iOS and Android platforms
The example app running on android OnePlus 7:
Add the dependency easy_audio_trimmer to your pubspec.yaml file:
dependencies:
easy_audio_trimmer: ^1.0.0No additional configuration is needed for using on Android platform. You are good to go!
-
Set the platform version in
ios/Podfileto 10.Refer to the FFmpeg Release section.
platform :ios, '10'
This package uses LTS version of the FFmpeg implementation.
| LTS Release | |
|---|---|
| Android API Level | 16 |
| Android Camera Access | - |
| Android Architectures | arm-v7a arm-v7a-neon arm64-v8a x86 x86-64 |
| iOS Min SDK | 10 |
| iOS Architectures | armv7 arm64 i386 x86-64 |
final Trimmer _trimmer = Trimmer();
await _trimmer.loadAudio(audioFile: widget.file);Returns a string to indicate whether the saving operation was successful.
_trimmer.saveTrimmedAudio(
startValue: _startValue,
endValue: _endValue,
audioFileName: DateTime.now().millisecondsSinceEpoch.toString(),
onSave: (outputPath) {
setState(() {
_progressVisibility = false;
});
debugPrint('OUTPUT PATH: $outputPath');
},
);Returns the audio playback state. If true then the audio is playing, otherwise it is paused.
await _trimmer.audioPlaybackControl(
startValue: _startValue,
endValue: _endValue,
);TrimViewer(
trimmer: _trimmer,
viewerHeight: 50.0,
viewerWidth: MediaQuery.of(context).size.width,
maxAudioLength: const Duration(seconds: 10),
onChangeStart: (value) => _startValue = value,
onChangeEnd: (value) => _endValue = value,
allowAudioSelection: true,
onChangePlaybackState: (value) =>
setState(() => _isPlaying = value),
)Before using this example directly in a Flutter app, don't forget to add the easy_audio_trimmer & file_picker packages to your pubspec.yaml file.
You can try out this example by replacing the entire content of main.dart file of a newly created Flutter project.
import 'dart:io';
import 'package:example/trimmer_view.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: createMaterialColor(const Color(0xFF332FD0)),
),
home: const FileSelectorWidget());
}
}
class FileSelectorWidget extends StatefulWidget {
const FileSelectorWidget({super.key});
@override
State<FileSelectorWidget> createState() => _FileSelectorWidgetState();
}
class _FileSelectorWidgetState extends State<FileSelectorWidget> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text("Audio Trimmer"),
),
body: Center(
child: ElevatedButton(
onPressed: () async {
FilePickerResult? result = await FilePicker.platform.pickFiles(
type: FileType.audio,
allowCompression: false,
);
if (result != null) {
File file = File(result.files.single.path!);
// ignore: use_build_context_synchronously
Navigator.of(context).push(
MaterialPageRoute(builder: (context) {
return AudioTrimmerView(file);
}),
);
}
},
child: const Text("Select File")),
),
);
}
}
class AudioTrimmerView extends StatefulWidget {
final File file;
const AudioTrimmerView(this.file, {Key? key}) : super(key: key);
@override
State<AudioTrimmerView> createState() => _AudioTrimmerViewState();
}
class _AudioTrimmerViewState extends State<AudioTrimmerView> {
final Trimmer _trimmer = Trimmer();
double _startValue = 0.0;
double _endValue = 0.0;
bool _isPlaying = false;
bool _progressVisibility = false;
bool isLoading = false;
@override
void initState() {
super.initState();
_loadAudio();
}
void _loadAudio() async {
setState(() {
isLoading = true;
});
await _trimmer.loadAudio(audioFile: widget.file);
setState(() {
isLoading = false;
});
}
_saveAudio() {
setState(() {
_progressVisibility = true;
});
_trimmer.saveTrimmedAudio(
startValue: _startValue,
endValue: _endValue,
audioFileName: DateTime.now().millisecondsSinceEpoch.toString(),
onSave: (outputPath) {
setState(() {
_progressVisibility = false;
});
debugPrint('OUTPUT PATH: $outputPath');
},
);
}
@override
Widget build(BuildContext context) {
return WillPopScope(
onWillPop: () async {
if (Navigator.of(context).userGestureInProgress) {
return false;
} else {
return true;
}
},
child: Scaffold(
backgroundColor: Colors.white,
appBar: AppBar(
title: const Text("Audio Trimmer"),
),
body: isLoading
? const CircularProgressIndicator()
: Center(
child: Container(
padding: const EdgeInsets.only(bottom: 30.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Visibility(
visible: _progressVisibility,
child: LinearProgressIndicator(
backgroundColor:
Theme.of(context).primaryColor.withOpacity(0.5),
),
),
ElevatedButton(
onPressed:
_progressVisibility ? null : () => _saveAudio(),
child: const Text("SAVE"),
),
AudioViewer(trimmer: _trimmer),
Center(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: TrimViewer(
trimmer: _trimmer,
viewerHeight: 100,
viewerWidth: MediaQuery.of(context).size.width,
durationStyle: DurationStyle.FORMAT_MM_SS,
backgroundColor: Theme.of(context).primaryColor,
barColor: Colors.white,
durationTextStyle: TextStyle(
color: Theme.of(context).primaryColor),
allowAudioSelection: true,
editorProperties: TrimEditorProperties(
circleSize: 10,
borderPaintColor: Colors.pink,
borderWidth: 4,
borderRadius: 5,
circlePaintColor: Colors.pink.shade800,
),
areaProperties:
TrimAreaProperties.edgeBlur(blurEdges: true),
onChangeStart: (value) => _startValue = value,
onChangeEnd: (value) => _endValue = value,
onChangePlaybackState: (value) {
if (mounted) {
setState(() => _isPlaying = value);
}
},
),
),
),
TextButton(
child: _isPlaying
? Icon(
Icons.pause,
size: 80.0,
color: Theme.of(context).primaryColor,
)
: Icon(
Icons.play_arrow,
size: 80.0,
color: Theme.of(context).primaryColor,
),
onPressed: () async {
bool playbackState =
await _trimmer.audioPlaybackControl(
startValue: _startValue,
endValue: _endValue,
);
setState(() => _isPlaying = playbackState);
},
)
],
),
),
),
),
);
}
}While running on the Android platform if it gives an error that the minSdkVersion needs to be 24, or on iOS platform that the Podfile platform version should be 11, first go to pubspec.lock file and see if the version of ffmpeg_kit_flutter has -LTS suffix. This should fix all issues for iOS platform.
On Android, if you still face the same issue, try adding the following to the <project_directory>/android/app/src/main/AndroidManifest.xml:
<manifest xmlns:tools="http://schemas.android.com/tools" ....... >
<uses-sdk tools:overrideLibrary="com.arthenica.ffmpegkit.flutter, com.arthenica.ffmpegkit" />
</manifest>
| Agochar Tech LLP | https://agochar.com/ |
"We would like to thank the contributors to the Video Trimmer repository for their invaluable assistance in creating this project. We used code from the Video Trimmer tool to implement the trimming and editing features in this project, and we are grateful for the opportunity to use it in our work. Thank you to the team behind Video Trimmer for their valuable contributions."
Copyright (c) 2022 Mayur Pitroda
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