light_compressor_v2 1.1.0

A powerful and easy-to-use video compression plugin for Flutter.

light_compressor_v2

A powerful, easy-to-use video compression plugin for Flutter. Forked from light_compressor and modernized by Farid Gurbanov.

This plugin generates a compressed MP4 video with modified width, height, and bitrate. It is built on top of the native LightCompressor library for Android and LightCompressor_iOS for iOS and macOS.

🛠️ How it Works

Extreme high bitrates are reduced while maintaining good video quality, resulting in a much smaller file size.

• Quality Presets: You can choose between 5 compression qualities: very_low, low, medium, high, or very_high. The plugin automatically handles generating the correct bitrate for the output video.
• Minimum Bitrate Guard: The plugin checks if you want to enforce a minimum bitrate threshold (default is 2 Mbps) via isMinBitrateCheckEnabled. This prevents low-resolution or already compressed videos from being compressed repeatedly, avoiding cumulative quality degradation.

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✨ Features

• Five quality presets — very_low, low, medium, high, very_high — the plugin calculates the optimal bitrate automatically.
• Custom resolution & bitrate — override width, height, and bitrate directly when presets aren't enough.
• Minimum bitrate guard — optionally skip compression for already-low-bitrate videos to avoid quality degradation.
• Streamable output — produce MP4 files with the moov atom placed at the front for fast playback start.
• Progress stream — listen to real-time compression percentage via a Dart Stream<double>.
• Cancellation — cancel any in-progress compression with a single call.
• Disable audio — generate silent videos when audio isn't needed.
• iOS / macOS: Swift Package Manager (SPM) support alongside CocoaPods.
• Android: fully Kotlin native layer — no Java dependencies, Gradle KTS build script.
• Updated example app with Material 3, file picker, and video player.

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📸 Demo

[Demo GIF]

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📱 Platform Support

iOS	Android	macOS	Web	Windows	Linux
✅	✅	✅	❌	❌	❌

Minimum versions: iOS 11 · Android API 24 · macOS 10.15

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📦 Installation

Add the dependency to your pubspec.yaml:

dependencies:
  light_compressor_v2: ^1.0.1

Then run:

flutter pub get

iOS / macOS — Podfile

No extra Podfile configuration is required. The plugin ships with both a .podspec (CocoaPods) and a Package.swift (SPM). Flutter will pick the appropriate integration automatically.

Android — minSdk

The plugin requires minSdk 24. If your app targets a lower SDK, update your android/app/build.gradle:

android {
    defaultConfig {
        minSdk = 24
    }
}

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🚀 Usage

import 'package:light_compressor_v2/light_compressor_v2.dart';

final compressor = LightCompressor();

// Start compression
final Result response = await compressor.compressVideo(
  path: '/path/to/source.mp4',
  videoQuality: VideoQuality.medium,
  isMinBitrateCheckEnabled: false,
  video: Video(videoName: 'compressed_output.mp4'),
  android: AndroidConfig(isSharedStorage: true, saveAt: SaveAt.Movies),
  ios: IOSConfig(saveInGallery: true),
);

// Handle result
if (response is OnSuccess) {
  print('Compressed to: ${response.destinationPath}');
} else if (response is OnFailure) {
  print('Error: ${response.message}');
} else if (response is OnCancelled) {
  print('Cancelled: ${response.isCancelled}');
}

Listening to progress

StreamBuilder<double>(
  stream: compressor.onProgressUpdated,
  builder: (context, snapshot) {
    final percent = snapshot.data ?? 0;
    return Text('${percent.toStringAsFixed(0)}%');
  },
);

Cancelling compression

compressor.cancelCompression();

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📖 API Reference

LightCompressor.compressVideo()

Parameter	Type	Required	Default	Description
path	String	✅	—	Absolute path to the source video file.
videoQuality	VideoQuality	✅	—	Quality preset: very_low, low, medium, high, very_high.
android	AndroidConfig	✅	—	Android-specific storage configuration.
ios	IOSConfig	✅	—	iOS/macOS-specific storage configuration.
video	Video	✅	—	Output video configuration (name, resolution, bitrate).
isMinBitrateCheckEnabled	bool		true	Skip compression when source bitrate is below 2 Mbps.
disableAudio	bool?		false	Strip audio track from the output.

Video

Parameter	Type	Required	Default	Description
videoName	String	✅	—	Output filename (.mp4 appended automatically if missing).
keepOriginalResolution	bool?		false	Keep source dimensions instead of downscaling.
videoBitrateInMbps	int?		null	Custom bitrate in Mbps (overrides quality preset).
videoHeight	int?		null	Custom height in pixels. Must be set with videoWidth.
videoWidth	int?		null	Custom width in pixels. Must be set with videoHeight.

AndroidConfig

Parameter	Type	Default	Description
isSharedStorage	bool	true	true = shared storage (MediaStore); false = app-specific directory.
saveAt	SaveAt	Movies	Target collection: Pictures, Movies, or Downloads. Ignored when isSharedStorage is false.

IOSConfig

Parameter	Type	Default	Description
saveInGallery	bool	true	Save the compressed video to the photo library.

Result types

Type	Properties	Description
OnSuccess	destinationPath: String	Compression completed; contains the output file path.
OnFailure	message: String	Compression failed; contains the error message.
OnCancelled	isCancelled: bool	Compression was cancelled via cancelCompression().

Other members

Member	Signature	Description
onProgressUpdated	Stream<double>	Emits compression progress from 0 to 100.
cancelCompression()	Future<Map<String, dynamic>?>	Cancels any running compression.

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⚙️ Configuration

iOS / macOS

SPM vs CocoaPods — The plugin includes both Package.swift and .podspec. Flutter ≥ 3.24 uses SPM by default; older versions fall back to CocoaPods automatically.

Info.plist — If you use IOSConfig(saveInGallery: true), add the photo library usage description:

<key>NSPhotoLibraryUsageDescription</key>
<string>Used to save compressed videos.</string>

Android

Permissions — Add the appropriate permissions to AndroidManifest.xml based on your target API level:

<!-- API < 29 -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission
    android:name="android.permission.WRITE_EXTERNAL_STORAGE"
    android:maxSdkVersion="28"
    tools:ignore="ScopedStorage" />

<!-- API 29–32 -->
<uses-permission
    android:name="android.permission.READ_EXTERNAL_STORAGE"
    android:maxSdkVersion="32" />

<!-- API ≥ 33 -->
<uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />

ProGuard — No special ProGuard or R8 rules are required.

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🤝 Contributing

Contributions are welcome! To get started:

1. Fork the repository: github.com/Farid023/light_compressor_v2
2. Create a feature branch: git checkout -b feat/my-feature
3. Make your changes and run the example app to verify:

   cd example
   flutter run
   

4. Open a Pull Request with a clear description of the change.

Please report bugs via GitHub Issues. Include the device name, OS version, and whether the issue reproduces in the example app.

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📄 License

MIT © 2020 AbedElaziz Shehadeh, 2025 Farid Gurbanov