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Graphics, sound and multimedia • Re: Output to both HDMI ports simultaneously using gstreamer and kmssink

You can't do it through 2 independent gst-launch commands.

However kmssink does have an "fd" property so an external wrapper can open DRM and pass that handle into multiple kmssink components.
I haven't looked at how that would work in practice with regard choosing plane numbers - you probably need to use the plane-id and connector-id properties to stop it trying to make the decision for you. You may get DRM commits competing for vsyncs though.

Statistics: Posted by 6by9 — Wed Jun 19, 2024 7:49 am



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