https://github.com/airtaxi/videoframetowriteablebitmap

VideoFrameToWriteableBitmap is a utility that facilitates the decoding of raw video frames (H.264, MJPEG, and more) and renders them into a WriteableBitmap within a WinUI application using FFmpeg.AutoGen version 7.0 (FFmpeg 7.0 dlls are required). Useful for scenarios like decoding frames from an RTSP stream is required.
https://github.com/airtaxi/videoframetowriteablebitmap

ffmpeg rtsp video winui writeablebitmap

Last synced: about 1 month ago
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VideoFrameToWriteableBitmap is a utility that facilitates the decoding of raw video frames (H.264, MJPEG, and more) and renders them into a WriteableBitmap within a WinUI application using FFmpeg.AutoGen version 7.0 (FFmpeg 7.0 dlls are required). Useful for scenarios like decoding frames from an RTSP stream is required.

• Host: GitHub
• URL: https://github.com/airtaxi/videoframetowriteablebitmap
• Owner: airtaxi
• License: lgpl-3.0
• Created: 2024-08-15T03:38:00.000Z (4 months ago)
• Default Branch: master
• Last Pushed: 2024-08-15T04:12:54.000Z (4 months ago)
• Last Synced: 2024-11-23T01:33:27.640Z (about 1 month ago)
• Topics: ffmpeg, rtsp, video, winui, writeablebitmap
• Language: C#
• Homepage:
• Size: 33.2 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# VideoFrameToWriteableBitmap

[![NuGet version (DetoursCustomDPI)](https://img.shields.io/nuget/v/VideoFrameToWriteableBitmap.svg?style=flat-square)](https://www.nuget.org/packages/VideoFrameToWriteableBitmap/)

`VideoFrameToWriteableBitmap` is a library that uses FFmpeg.AutoGen to decode video frames and display them in a `WriteableBitmap` for WinUI applications. This library is designed to handle video codecs like H.264 and supports the processing and rendering of video frame data asynchronously to avoid blocking the UI thread.

## Features

- **Frame Decoding**: Decodes video frames using FFmpeg and converts them into a format suitable for display in WinUI.

- **WriteableBitmap Rendering**: Efficiently renders decoded frame data to a `WriteableBitmap`.

- **Thread Safety**: The library is designed with thread safety in mind, using locks to prevent concurrent access to unmanaged resources.

## Usage

### 1. FrameDecoder Class

The `FrameDecoder` class is responsible for decoding video frames using a specified codec. It manages the underlying FFmpeg structures and provides methods to feed raw frame data and render the decoded frames directly to a `WriteableBitmap`.

#### Example:

```csharp

// Initialize the decoder with the desired codec (e.g., H264)

var frameDecoder = new FrameDecoder(AVCodecID.AV_CODEC_ID_H264);

// Feed the decoder with raw video data (first frame to feed must be a full NAL unit (I frame) for H264)

bool success = frameDecoder.Feed(frameData);

if (success)

{

    // Render the decoded frame data directly to the WriteableBitmap

    frameDecoder.Invalidate(writeableBitmap);

}

```

### 2. Disposing Resources

It's important to properly dispose of `FrameDecoder` objects to free unmanaged resources and prevent memory leaks.

#### Example:

```csharp

// Dispose of the FrameDecoder when done

frameDecoder.Dispose();

```

## Author

`이호원 (Howon Lee) a.k.a hoyo321 or kck4156, airtaxi`

## License

This project is licensed under the LGPL 3.0 License. See the [LICENSE](LICENSE.txt) file for more details.