I actually have a working demo of H265 decoding pipeline with membrane that displays dynamic transparent overlay, all zero-copy and GPU accelerated. I will try to clean it up and upload it as new emerge demo sooner than macOS video work is finished then, may take a week or two.
What nerves device are you currently using? Emerge currently requires GPU with atomic mode setting for DRM backend, that means rpi4 and rpi5 or mostly any arrch64 device that has working gpu drivers. in the future I will enable legacy mode setting to bring it to older devices and add precompiled arm 32 bit builds into release. There is a limit on how many things I can work on in parallel though so this may take some time.
