Re: How to use opencv plugin such as dewarp on Windows

Aleksandr Slobodeniuk via gstreamer-devel <[email protected]> Mon, 23 Oct 2023 19:24:02 +0200

Newsgroups	gmane.comp.video.gstreamer.devel
Message-ID	<CAHuwaLAc5hZp5aO0wva4PG9gbKpF1M0JktitZX1y-sz-M0WFFA@mail.gmail.com>

Hello Kamiya.

Recently we tried the dewarp element from the opencv plugin on
Windows. Currently to build it you need to apply a patch, submitted in
this MR, and rebuild GStreamer.
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4280

Also one note about this element:
It works with the RGBA raw CPU memory, no GPU surfaces, following it's
template caps. So if the source of the fisheye image is encoded video
stream, such as h264, and you decode with the d3d11 plugin, you will
need to download the output to the raw memory using d3d11download
element.

Best regards,
Alexander