I installed menson, x264 & faac in my ubuntu 20.04.

But I can't build it.

Is the gstreamer-video-1.0 required as dependency ?

marcin@hp:~/workspace/gnome-network-displays$ meson build
The Meson build system
Version: 0.53.2
Source dir: /home/marcin/workspace/gnome-network-displays
Build dir: /home/marcin/workspace/gnome-network-displays/build
Build type: native build
Project name: gnome-network-displays
Project version: 0.90.4
C compiler for the host machine: cc (gcc 9.3.0 "cc (Ubuntu 9.3.0-10ubuntu2) 9.3.0")
C linker for the host machine: cc ld.bfd 2.34
Host machine cpu family: x86_64
Host machine cpu: x86_64
Configuring gnome-network-displays-config.h using configuration
Program desktop-file-validate found: YES (/usr/bin/desktop-file-validate)
Program appstream-util found: NO
Program glib-compile-schemas found: YES (/usr/bin/glib-compile-schemas)
Found pkg-config: /usr/bin/pkg-config (0.29.1)
Did not find CMake 'cmake'
Found CMake: NO
Run-time dependency gstreamer-video-1.0 found: NO (tried pkgconfig)
src/wfd/meson.build:21:0: ERROR: Dependency "gstreamer-video-1.0" not found, tried pkgconfig
A full log can be found at /home/marcin/workspace/gnome-network-displays/build/meson-logs/meson-log.txt
marcin@hp:~/workspace/gnome-network-displays$ 

from what I found on internet its: sudo apt-get install libgstreamer-plugins-base1.0-dev https://github.com/baedert/corebird/issues/189#issuecomment-344462399

maybe it will help someone.