All the API and related structures are located at https://github.com/Xilinx/gstreamer/blob/xlnx-rebase-v1.20.5/subprojects/gst-plugins-good/sys/v4l2/ext/xlnx-ll/xlnxsync.h.
All the API and related structures are located at https://github.com/Xilinx/gstreamer/blob/xlnx-rebase-v1.20.5/subprojects/gst-plugins-good/sys/v4l2/ext/xlnx-ll/xlnxsync.h.