[GStreamer][playbin3] improve support for "decoder" sinks#1093

emutavchi wants to merge 1 commit intoWebPlatformForEmbedded:wpe-2.38WebPlatformForEmbedded/WPEWebKit:wpe-2.38from

emutavchi:wpe-2.38-decoder-sinkemutavchi/WebKitForWayland:wpe-2.38-decoder-sinkCopy head branch name to clipboard