# Video sample grabber

Media Blocks SDK .Net

The video sample grabber calls an event for each video frame. You can save or process the received video frame.

# Block info

Name: VideoSampleGrabberBlock.

Pin direction Media type Pins count
Input Uncompressed video 1
Output Uncompressed video 1

# The sample pipeline 

graph LR;
    UniversalSourceBlock-->VideoSampleGrabberBlock;
    VideoSampleGrabberBlock-->VideoRendererBlock;

# Sample code 

var pipeline = new MediaBlocksPipeline();

var filename = "test.mp4";
var fileSource = new UniversalSourceBlock(await UniversalSourceSettings.CreateAsync(new Uri(filename)));

var videoSG = new VideoSampleGrabberBlock();
videoSG.OnVideoFrameBuffer += VideoSG_OnVideoFrameBuffer;
pipeline.Connect(fileSource.VideoOutput, videoSG.Input);

var videoRenderer = new VideoRendererBlock(pipeline, VideoView1);
pipeline.Connect(videoSG.Output, videoRenderer.Input);            

await pipeline.StartAsync();

private void VideoSG_OnVideoFrameBuffer(object sender, VideoFrameBufferEventArgs e)
{
    // save or process the video frame
}

# Platforms

Windows, macOS, Linux, iOS, Android.