framework: convert bsd.gstreamer.mk to Uses/gstreamer.mk

- convert bsd.gstreamer.mk to Uses/gstreamer.mk
- convert ports tree to make use of USES=gstreamer
- remove duplicate dependency lines from the tree

Differential Revision: https://reviews.freebsd.org/D35097

multimedia/py-gstreamer1: Add CPE information

Approved by:	portmgr (blanket)

Remove # $FreeBSD$ from Makefiles.

multimedia/py-gstreamer1: update to 1.16.3 & fix build with Python 3.8

- switch to meson build systme

PR:		246574
Submitted by:	Greg V <greg@unrelenting.technology> (py38), VVD vvd@unislabs.com
(update)

Drop python 2.7 support from a few ports

With hat:	portmgr

- Update WWW

Approved by:	portmgr blanket

Update gstreamer1 to 1.16.2.

- The spc plugin was removed inflavor for the gsm plugin.
- Added in tree qt plugin.

Changelog: https://gstreamer.freedesktop.org/releases/1.16/#1.16.2

Update net-im/fractal to 4.2.2 to support GStreamer 1.16 (approved by
maintainer)

Thanks to antoine@ for the exp-run.

PR:		239386

Revert r518019, breaking bulk -a is not covered by portmgr blanket

- Limit python version (does not configure with 3.8)

checking for python version... 3.8
checking for python platform... freebsd12
checking for python script directory... ${prefix}/lib/python3.8/site-packages
checking for python extension module directory...
${exec_prefix}/lib/python3.8/site-packages
checking for python >= 2.7... checking pkg-config is at least version 0.9.0...
yes
checking for GST... yes
checking for PYGOBJECT... yes
okay
checking for headers required to compile python extensions... found
checking for pygobject overrides directory...
${exec_prefix}/lib/python3.8/site-packages/gi/overrides
checking for GST... yes
configure: Using /usr/local/lib/gstreamer-1.0 as the plugin install location
checking for PYGOBJECT... yes
checking for libraries required to embed python... no
configure: error: Python libs not found. Windows requires Python modules to be
explicitly linked to libpython.

Approved by:	portmgr blanket

Update GStreamer to 1.14.4.

PR:		231406
Submitted by:	Greg V <greg@unrelenting.technology>
Exp-run by:	antoine
Approved by:	portmgr (antoine)

Cleanup plist handling

Cleanup Mk/Uses/gnome.mk.

- Remove the use of comp_DETECT.
- Remove all comp_DETECT variables.
- Remove a use of comp_DETECT outside of gnome.mk
- Remove py3gobject3.
- Have ports depending directly on devel/py-gobject3 use gnome to do it.

PR:		224618
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight
Differential Revision:	https://reviews.freebsd.org/D13550

Convert Python ports to FLAVORS.

  Ports using USE_PYTHON=distutils are now flavored.  They will
  automatically get flavors (py27, py34, py35, py36) depending on what
  versions they support.

  There is also a USE_PYTHON=flavors for ports that do not use distutils
  but need FLAVORS to be set.  A USE_PYTHON=noflavors can be set if
  using distutils but flavors are not wanted.

  A new USE_PYTHON=optsuffix that will add PYTHON_PKGNAMESUFFIX has been
  added to cope with Python ports that did not have the Python
  PKGNAMEPREFIX but are flavored.

  USES=python now also exports a PY_FLAVOR variable that contains the

Update GStreamer 1.x suite to 1.12.3.

ChangeLog: https://gstreamer.freedesktop.org/releases/1.12/#1.12.3

Update GStreamer1 ports to 1.12.2.

Rework the adding of dependancies in Mk/bsd.gstreamer.mk.
Previous when using USE_GSTREAMER[1] it would just add the request modules to
BUILD/RUN_DEPENDS. This caused the qa script to complain because the old code
didn't implicit depend on the gstreamer1 and gstreamer1-plugins[-bad] ports for
the libraries they carried, even if they where present via the plugins! The new
code adds implicit depends on these ports so USE_GSTREAMER[1] using ports have
all the libraries included.

* The mad mp3 plugin was removed, mpg123 plugin also provides mp3 decoding.
Switch over ports that used the gstreamer1 mad plugin.
* gtksink plugin renamed -> gtk
* Hook up the sndio plugin into the framework
* Add some indirect dependacies where needed
* Reorder the plugin list in bsd.gstreamer.mk so only one plugin per line. When
changing plugins it doesn't result in multiple lines being changed.
* Remove mentions in bsd.gstreamer.mk of plugins mentions that where removed.
* Depend on libunwind on i386/amd64, GStreamer links to it if it is present.

PR:		220753
Exp-run by:	antoine@

Update GStreamer1 ports to 1.8.0.

ChangeLog: https://gstreamer.freedesktop.org/releases/1.8/

Update GStreamer1 to 1.6.2.
Update GStreamer1-vaapi to 0.7.0.

* Spell GStreamer consistently. [1]
* Fix typo in py3kplist in py3-gstreamer1 [1]
* Improve plugins COMMENTS (more improvements welcome)
* Actually include the gstreamer1-libav update this time.

PR:		204204 [1] (based on)
Submitted by:	olivierd@ [1]

Update Gstreamer suite to 1.6.1.

Prevent PKGNAME collision between multimedia/py-gstreamer1 and
multimedia/py3-gstreamer1 when default version of python is 3.x

Update gstreamer1 ports to 1.6.0.

* gstreamer1-libav now uses ffmpeg from ports.
* New ports:
  * gstreamer1-validate: Tools to detect if elements are not behaving
    as expected, mainly aimed at developers, or advanced debugging.
  * gstreamer1-rtsp-server: Base foundation for building a rtsp
    server ontop of GStreamer
 * Bunch of new plugins like: mpg123, rsvg, libde265, openh264, x265 and dtls.

Release announcement:
 
http://lists.freedesktop.org/archives/gstreamer-announce/2015-September/000357.html

Obtained from:	gnome devel repo

Set PORTSCOUT on gstreamer ports

Big Gstreamer update:

Update gstreamer, gstreamer-plugins, -good, -bad and -ugly ports to 1.4.4.
Update gstreamer1-plugins-gnonlin to 1.4.0.
Update py-gstreamer1 and py3-gstreamer1 to 1.4.0.

Add multimedia/gstreamer1-editing-services. GES is a high-level library
for facilitating the creation of audio/video non-linear editors.

Add pulseaudio plugin now that pulseaudio is updated and add the gl plugin.

Drop :keepla from USES=libtool.
Drop @dirrm[try] from plists and drop gnomehier from USE_GNOME
Switch to optionhelpers in multimedia/gstreamer1.

PR:		194922 (merged with my own WIP)
Submitted by:	olivierd

Add USES=libtool and USES=python:2

Add missing /libs in LDFLAGS, this should fix the build in some cases.

While here, remove PTHREAD_* from CPPFLAGS and LDFLAGS.

PR:		192432
Submitted by:	sascha@root-login.org (PR), troyax@pholos.eu (fix)

Add Gstreamer python bindings for Gstreamer 1.x.

Add python2 and python3 flavors.
USE_GSTREAMER1 entries will be made when I figure out how adapt
bsd.gstreamer.mk to the dual python flavors.

PR:	ports/187647 (merged/based on)
Submitted by:	Olivier Duchateau