7983ecff1c
With this patch, configure time is identical no matter whether doc is enabled or not. The configuration files also now contain explicitly-listed sources with no wildcards. For the four libraries where hotdoc needs to use clang to generate the documentation (as opposed to the rest of the libraries where hotdoc uses the gir), the script will call pkg-config to determine the appropriate C flags. This means a side effect of this patch is that pkg-config files are now generated for the gstadaptivedemux and gstopencv libraries. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8312>
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.