Adjust the latency of QML MediaPlayer (Qt6)

[rklemm]

I'm trying to connect to an RTSP camera stream from QML using the MediaPlayer object. Using the code below, I can connect and stream, but there is significant latency (2-3 seconds). Sometimes, the stream starts with a very low latency, and I would like to make that behavior consistent. I have a wired connection to the camera module, so physical limitations on the latency should not be a problem.

import QtQuick
import QtMultimedia

Window {
  width: 1920
  height: 1080

  MediaPlayer {
    id: player
    source: "rtsp://xxxx"
    videoOutput: videoOut
  }

  VideoOutput {
    id: videoOut
    anchors.fill: parent
  }

  Component.onCompleted: player.play()
}

I haven't found any resources that show how to adjust the latency of the MediaPlayer. If I manually connect to the rtsp stream using gstreamer, I can achieve a clean low-latency stream, so I know that it is possible.