GStream Meson installation not working with omx plugin

Question

I'm trying to install GStreamer using meson and I want to install one of its plugins: omx. For that, I set it to enabled in meson_options.txt file and add the target value with:

option('target', type : 'combo',
    choices : ['none', 'generic', 'rpi', 'bellagio', 'tizonia', 'zynqultrascaleplus'], value : 'rpi',
    description : 'The OMX platform to target')

However, I keep getting the error:

subprojects/gst-omx/meson.build:220:2: ERROR: Problem encountered: Unsupported omx target specified. Use the -Dtarget option

Answer 1

You shouldn't change meson_options.txt files, build options should be set with -D optname=optval in command line when you setup meson build directory, and to change value in subproject prefix with subproject name with colon: -D subproject:optname=optval, thus:

meson build -D omx=enabled -D gst-omx:target=rpi