Insertable stream with v4l (Video4Linux)

[Serroda]

Hi, I am trying to connect my camera and get the frames with v4l.
Something like this

let mut dev = Device::new(0).expect("Failed to open device");
let mut fmt = dev.format().expect("Failed to read format");
fmt.width = 1280;
fmt.height = 720;
fmt.fourcc = FourCC::new(b"H264");
dev.set_format(&fmt).expect("Failed to write format");

let mut stream = MmapStream::with_buffers(&mut dev, Type::VideoCapture, 4)
        .expect("Failed to create buffer stream");

 tokio::spawn(async move {
      
        // Wait for connection established
        notify_video.notified().await;

        // Send our video file frame at a time. Pace our sending so we send it at the same speed it should be played back as.
        // This isn't required since the video is timestamped, but we will such much higher loss if we send all at once.
        let sleep_time = Duration::from_millis(500);

        loop {
         
            let (frame, _) = stream.next().unwrap();

   
            tokio::time::sleep(sleep_time).await;

            video_track
                .write_sample(&Sample {
                    data: frame.to_vec().into(),
                    duration: Duration::from_millis(1000),
                    ..Default::default()
                })
                .await?;
        }

        let _ = video_done_tx.try_send(());

        Result::<()>::Ok(())
    });

But when I execute the example code, the player in the html doesnt play anything.
Can someone help me?

I am trying to get this to work to implement it with tauri