"GST_MESSAGE_WARNING: Pipeline construction is invalid, please add queues"

Sat Sep 7 03:24:55 UTC 2019

Why would I get that for the following pipeline?

rtspsrc location=rtsp://<myip>:8554/<streamName> drop-on-latency=true !
decodebin ! mfxvpp !
video/x-raw(memory:MFXSurface),format=BGRA,width=256,height=192 ! queue
leaky=1 max-size-buffers = 0 ! appsink name = sink

There is a queue in the pipeline.

It's also worth noting I need this to be as real-time as possible. I'd
rather not have a lengthy queue.
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