How to build own gstreamer with full hardware encoding support?

If I using a custom or non-official image, How to build gstreamer with full hardware encoding support?

$ gst-inspect-1.0 rockchipmpp
Plugin Details:
  Name                     rockchipmpp
  Description              Rockchip Mpp Video Plugin
  Filename                 /usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstrockchipmpp.so
  Version                  1.14.4
  License                  LGPL
  Source module            gst-rockchip
  Binary package           GStreamer Rockchip Plug-ins
  Origin URL               Unknown package origin

  mpph264enc: Rockchip Mpp H264 Encoder
  mpph265enc: Rockchip Mpp H265 Encoder
  mppjpegdec: Rockchip's MPP JPEG image decoder
  mppjpegenc: Rockchip Mpp JPEG Encoder
  mppvideodec: Rockchip's MPP video decoder
  mppvp8enc: Rockchip Mpp VP8 Encoder

Hello @jiratto

You can check patches here: