a0e6278dba
Starting with Meson 0.62, meson automatically populates the variables
list in the pkgconfig file if you reference builtin directories in the
pkgconfig file (whether via a custom pkgconfig variable or elsewhere).
We need this, because ${prefix}/libexec is a hard-coded value which is
incorrect on, for example, Debian.
Bump requirement to 0.62, and remove version compares that retained
support for older Meson versions.
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1245
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3061>
gst-libav
This module contains a GStreamer plugin for using the encoders, decoders, muxers, and demuxers provided by FFmpeg. It is called gst-libav for historical reasons.
Plugin Dependencies and Licenses
GStreamer is developed under the terms of the LGPL-2.1 (see COPYING file for details), and that includes the code in this repository.
However, this repository depends on FFmpeg, which can be built in the following
modes using various ./configure switches: LGPL-2.1, LGPL-3, GPL, or non-free.
This can mean, for example, that if you are distributing an application which has a non-GPL compatible license (like a closed-source application) with GStreamer, you have to make sure not to build FFmpeg with GPL code enabled.
Overall, when using plugins that link to GPL libraries, GStreamer is for all practical reasons under the GPL itself.
The above recommendations are not legal advice, and you are responsible for ensuring that you meet your licensing obligations.