DeferredRenderer | Deferred Renderer with support for point lights | Graphics library

You can register a producer on the Request object. It will have its pauseProducing method called when the write buffer of that Request is full. When room becomes available, it will have its resumeProducing method call.

You can use this information to drop frames that may not be delivered in a timely fashion. However, you will have to actually identify frames in your server (currently you only have a dataReceived method that passes data through as a stream with no idea where frames begin or end). This also has the problem that buffer fullness is possibly a very lagging indicator of delays in the stream. And if the bottleneck in the system isn't in between reading data from gstreamer and writing it to the requests, adding backpressure sensitivity to this part of the program isn't going to help.