manuals: document COMMERCIAL_[AUDIO|VIDEO]_PLUGINS variables

- Add COMMERCIAL_[AUDIO|VIDEO]_PLUGINS variables to the
  variable index.
- Clarify that these plugins are still open-source
- Improve line width

(From yocto-docs rev: 8b161faad6b698b33165f02e1f5e78a693c7817b)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 117ef4b264..9b581599e3 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -1313,6 +1313,26 @@ system and gives an overview of their function and contents.
       optional at the distribution level, in case the hardware supports
       Bluetooth but you do not ever intend to use it.
 
+   :term:`COMMERCIAL_AUDIO_PLUGINS`
+      This variable is specific to the :yocto_git:`GStreamer recipes
+      </poky/tree/meta/recipes-multimedia/gstreamer/gstreamer1.0-meta-base.bb>`.
+      It allows to build the GStreamer `"ugly"
+      <https://github.com/GStreamer/gst-plugins-ugly>`__  and
+      `"bad" <https://github.com/GStreamer/gst-plugins-bad>`__ audio plugins.
+
+      See the :ref:`dev-manual/licenses:other variables related to commercial licenses`
+      section for usage details.
+
+   :term:`COMMERCIAL_VIDEO_PLUGINS`
+      This variable is specific to the :yocto_git:`GStreamer recipes
+      </poky/tree/meta/recipes-multimedia/gstreamer/gstreamer1.0-meta-base.bb>`.
+      It allows to build the GStreamer `"ugly"
+      <https://github.com/GStreamer/gst-plugins-ugly>`__  and
+      `"bad" <https://github.com/GStreamer/gst-plugins-bad>`__ video plugins.
+
+      See the :ref:`dev-manual/licenses:other variables related to commercial licenses`
+      section for usage details.
+
    :term:`COMMON_LICENSE_DIR`
       Points to ``meta/files/common-licenses`` in the
       :term:`Source Directory`, which is where generic license