pro_video_editor is an upcoming Flutter package designed to provide advanced video editing capabilities. This package will serve as an extension for the pro_image_editor.

Table of contents

• 📷 Preview
• ✨ Features
• 🔧 Setup
• ❓ Usage
• 💖 Sponsors
• 📦 Included Packages
• 🤝 Contributors
• 📜 License
• 📜 Notices

Preview

Basic-Editor	Grounded-Design	Paint-Editor

Crop-Rotate-Editor	Tune-Editor	Filter-Editor

Paint-Editor-Grounded	Emoji-Editor

Features

🎥 Video Editing Capabilities

• 📈 Metadata: Extract detailed metadata from the video file.
• 🖼️ Thumbnails: Generate one or multiple thumbnails from the video.
• 🎞️ Keyframes: Retrieve keyframe information from the video.
• ✂️ Trim: Cut the video to a specified start and end time.
• ⏩ Playback Speed: Adjust the playback speed of the video.
• 🔇 Mute Audio: Remove or mute the audio track from the video.

🔧 Transformations

• ✂️ Crop by x, y, width, and height
• 🔁 Flip horizontally and/or vertically
• 🔄 Rotate by 90deg turns
• 🔍 Scale to a custom size

🎨 Visual Effects

• 🖼️ Layers: Overlay a image like a text or drawings on the video.
• 🧮 Color Matrix: Apply one or multiple 4x5 color matrices (e.g., for filters).
• 💧 Blur: Add a blur effect to the video.
• 📡 Bitrate: Set a custom video bitrate. If constant bitrate (CBR) isn't supported, it will gracefully fall back to the next available mode.

📱 Runtime Features

• 📊 Progress: Track the progress of one or multiple running tasks.
• 🧵 Multi-Tasking: Execute multiple video processing tasks concurrently.

Platform Support

Method	Android	iOS	macOS	Windows	Linux	Web
Metadata	✅	✅	✅	✅	⚠️	✅
Thumbnails	✅	✅	✅	❌	❌	✅
KeyFrames	✅	✅	✅	❌	❌	✅
Rotate	✅	✅	✅	❌	❌	🚫
Flip	✅	✅	✅	❌	❌	🚫
Crop	✅	✅	✅	❌	❌	🚫
Scale	✅	✅	✅	❌	❌	🚫
Trim	✅	✅	✅	❌	❌	🚫
Playback-Speed	✅	✅	✅	❌	❌	🚫
Remove-Audio	✅	✅	✅	❌	❌	🚫
Overlay Layers	✅	✅	✅	❌	❌	🚫
Multiple ColorMatrix 4x5	✅	✅	✅	❌	❌	🚫
Blur background	🧪	🧪	🧪	❌	❌	🚫
Custom Audio Tracks	❌	❌	❌	❌	❌	🚫
Merge Videos	❌	❌	❌	❌	❌	🚫
Censor-Layers "Pixelate"	❌	❌	❌	❌	❌	🚫

Legend

• ✅ Supported with Native-Code
• ⚠️ Supported with Native-Code but not tested
• 🧪 Supported but visual output can differs from Flutter
• ❌ Not supported but planned
• 🚫 Not supported and currently not planned

Setup

Android, iOS, macOS, Linux, Windows, Web

No additional setup required.

Usage

Basic Example

var data = RenderVideoModel(
    video: EditorVideo.asset('assets/my-video.mp4'),
    // video: EditorVideo.file(File('/path/to/video.mp4')),
    // video: EditorVideo.network('https://example.com/video.mp4'),
    // video: EditorVideo.memory(videoBytes),
    enableAudio: false,
    startTime: const Duration(seconds: 5),
    endTime: const Duration(seconds: 20),
);

Uint8List result = await ProVideoEditor.instance.renderVideo(data);

/// Listen progress
StreamBuilder<ProgressModel>(
    stream: ProVideoEditor.instance.progressStream,
    builder: (context, snapshot) {
      var progress = snapshot.data?.progress ?? 0;
      return CircularProgressIndicator(value: animatedValue);
    }
)

Advanced Example

/// Every option except videoBytes is optional.
var task = RenderVideoModel(
    id: 'my-special-task'
    video: EditorVideo.asset('assets/my-video.mp4'),
    imageBytes: imageBytes, /// A image "Layer" which will overlay the video.
    outputFormat: VideoOutputFormat.mp4,
    enableAudio: false,
    playbackSpeed: 2,
    startTime: const Duration(seconds: 5),
    endTime: const Duration(seconds: 20),
    blur: 10,
    bitrate: 5000000,
    transform: const ExportTransform(
        flipX: true,
        flipY: true,
        x: 10,
        y: 20,
        width: 300,
        height: 400,
        rotateTurns: 3,
        scaleX: .5,
        scaleY: .5,
    ),
    colorMatrixList: [
         [ 1.0, 0.0, 0.0, 0.0, 50.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 ],
         [ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 ],
    ],
);

Uint8List result = await ProVideoEditor.instance.renderVideo(task);

/// Listen progress
StreamBuilder<ProgressModel>(
    stream: ProVideoEditor.instance.progressStreamById(task.id),
    builder: (context, snapshot) {
      var progress = snapshot.data?.progress ?? 0;
      return TweenAnimationBuilder<double>(
        tween: Tween<double>(begin: 0, end: progress),
        duration: const Duration(milliseconds: 300),
        builder: (context, animatedValue, _) {
          return Row(
            crossAxisAlignment: CrossAxisAlignment.center,
            mainAxisAlignment: MainAxisAlignment.start,
            spacing: 10,
            children: [
              CircularProgressIndicator(value: animatedValue),
              Text(
                '${(animatedValue * 100).toStringAsFixed(1)} / 100',
                style: const TextStyle(
                  fontSize: 20,
                  fontWeight: FontWeight.w500,
                ),
              )
            ],
          );
        });
    }
)

Editor Example

The video editor requires the use of the pro_image_editor. You can find the basic video editor example here and the "grounded" design example here.

You can also use other prebuilt designs from pro_image_editor, such as the WhatsApp or Frosted Glass design. Just check the examples in pro_image_editor to see how it's done.

Metadata Example

VideoMetadata result = await ProVideoEditor.instance.getMetadata(
    video: EditorVideo.asset('assets/my-video.mp4'),
);

Thumbnails Example

List<Uint8List> result = await ProVideoEditor.instance.getThumbnails(
    ThumbnailConfigs(
        video: EditorVideo.asset('assets/my-video.mp4'),
        outputFormat: ThumbnailFormat.jpeg,
        timestamps: const [
            Duration(seconds: 10),
            Duration(seconds: 15),
            Duration(seconds: 22),
        ],
        outputSize: const Size(200, 200),
        boxFit: ThumbnailBoxFit.cover,
    ),
);

Keyframes Example

List<Uint8List> result = await ProVideoEditor.instance.getKeyFrames(
    KeyFramesConfigs(
        video: EditorVideo.asset('assets/my-video.mp4'),
        outputFormat: ThumbnailFormat.jpeg,
        maxOutputFrames: 20,
        outputSize: const Size(200, 200),
        boxFit: ThumbnailBoxFit.cover,
    ),
);

Sponsors

Included Packages

A big thanks to the authors of these amazing packages.

• Packages created by the Dart team:
  • http
  • mime
  • plugin_platform_interface
  • web

Contributors

Made with contrib.rocks.