Le jeudi 07 juin 2018 à 16:27 +0900, Tomasz Figa a écrit : > > > I'd say no, but I guess that would mean that the driver never > > > encounters it, because hardware wouldn't report it. > > > > > > I wonder would happen in such case, though. Obviously decoding of such > > > stream couldn't continue without support in the driver. > > > > GStreamer supports decoding of variable resolution streams without > > driver support by just stopping and restarting streaming completely. > > What about userspace that doesn't parse the stream on its own? Do we > want to impose the requirement of full bitstream parsing even for > hardware that can just do it itself? We do it this way in GStreamer because we can and is more reliable with existing drivers. I do think that the driver driven renegotiation is superior as it allow a lot more optimization. Full reset is a just the slowest possible method of renegotiating. It is not visually fantastic with dynamic streams, like DASH and HLS. Though, we should think of a way driver can signal that this renegotiation is supported. Nicolas
