Plugin writer's guide build fail on ubuntu 18.04

[ChrisLiuv]

Hi,
I have develop gstreamer application for about half year, I now try to write
custom element because application code couldn't do my task, to separate
side-by-side video, eg: a combined 2 sensor video data from MIPI CSI2, both
have the same resolution/fps.

According to plugin writer's guide,

https://gstreamer.freedesktop.org/documentation/plugin-development/basics/boiler.html?gi-language=c
<https://gstreamer.freedesktop.org/documentation/plugin-development/basics/boiler.html?gi-language=c>  
My command is:

git clone https://gitlab.freedesktop.org/gstreamer/gst-template.git
cd gst-template
meson builddir
ninja -C builddir

On ubuntu 18.04, its built-in gsteramer version is 1.14.5, but the
meson.build request 1.19.
I tried to modify meson.build version check, and then ninja is failed.



I further check the gstreamer version of Ubuntu 20.04, is 1.16.x.

So if I want to process the guide, do I need to build the latest gstreamer
myself?
Thanks a lot.




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