Possible to display nothing or black screen when rtp stream stop ?

[Valentin Dubois-Pivot]

I'm working with Java 11 & JavaFX 14 app using GStreamer to display rtp stream camera.

I'm using gst1-java-core & gst1-java-fx with FXImageSink

Currently, when the camera stops sending a video stream, GStreamer continues to display the last received image but it's annoying because we don't know if the camera bug or if the app doesn't work anymore.

Is it possible to tell GStreamer to not display anything when no video stream is being received? Can we detect this signal to stop the flow?

Thanks

[Neil C Smith]

On Tue, 7 Sept 2021 at 10:47, Valentin Dubois-Pivot

<valentin.d...@gmail.com> wrote:
> Is it possible to tell GStreamer to not display anything when no video stream is being received? Can we detect this signal to stop the flow?

Add a generic message handler and see what you get from GStreamer when
this situation happens. Then call clear() from that message.

If you can't get anything useful from GStreamer, then maybe you can
detect the image property not changing for a certain amount of time?
Far from ideal.

Best wishes,

Neil


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