Fix WWW in parent/child ports

Many of the WWW are overwritten later which means the wrong value
is used. This did not happen before where the children were either
 a) just using the pkg-descr from the parents
 b) or had their own separate pkg-descr with custom WWW

Use WWW?= in parents when the child's WWW is different.

Children that use the same WWW as the parent can just inherit it,
i.e., the child WWW can be removed.

Approved by:	portmgr (implicit)

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

multimedia: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  Aaron LI <aly@aaronly.me>
  *  Alexander Botero-Lowry <alexbl@FreeBSD.org>
  *  Alexander Logvinov <ports@logvinov.com>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Anders Nordby <anders@FreeBSD.org>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Andrew Thompson <andy@fud.org.nz>
  *  Andrew Thompson <thompsa@FreeBSD.org>
  *  Angel Carpintero <ack@telefonica.net>
  *  Anish Mistry (with help from mean)
  *  Anonymous <swell.k@gmail.com>

devel/libepoll-shim: update to 0.0.20220703

Changes:	https://github.com/jiixyj/epoll-shim/compare/v0.0.20210418...v0.0.20220703
Reported by:	portscout
PR:		265017
Approved by:	manu
Co-authored-by:	Hans Petter Selasky <hselasky@FreeBSD.org>

Remove # $FreeBSD$ from Makefiles.

Update v4l_compat, libv4l and v4l-utils to 1.20.0
- Regenerate patches.
- Fetch all sources from GitHub.
- Update package descriptions, WWW links.

Approved by:	pi (implicit)

Upgrade v4l_compat, libv4l and v4l-utils to v1.18.0.

The most important change is that up-to-date V4L header files are now
sourced from the webcamd distribution tarball.

Refer to the ChangeLog file in the v4l-utils tarball for a comprehensive
list of changes.

PR:		245501
Approved by:	pi (implicit)

Use PORTNAME to distinguish among the Video4Linux sub-ports.
This reduces duplicated variable information.

Approved by:	pi (implicit)

Simplify the MASTERPORT variable in the Video4Linux ports.
All ports are at the same directory level.

Approved by:	pi (implicit)

Remove unused patch files.

The patch files are now in the master port, libv4l.

Approved by:	pi (implicit)

${RM} already has -f.

PR:		213570
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

Update libv4l and friends to 1.6.3.

Turn v4l-util and v4l_compat into slave ports.
"Steal" the dvb headers from linux 3.16.7 and roll them into a tarball.
Assign maintainership to multimedia@

Differential Revision:	https://reviews.freebsd.org/D1482
Approved by:		nox@, hslasky@, kwm@ (multimedia@)

Remove OSVERSION checks that do not make sense any more.

For example (${OSVERSION} >= 900000 && ${OSVERSION} < 900021) is always true,
as is (${OSVERSION} > 900002 || ${OSVERSION} < 900000 && ${OSVERSION} > 800107).

Regarding patches, when an EXTRA_PATCHES is no longer needed, I remove it, when
it is always needed, I renamed it, in one case, I merged two patches.

Differential Revision:	https://reviews.freebsd.org/D2209

Fix build on 8 and 9.

Submitted by:	beefy1 via pkg-fallout

bump PORTREVISION to reflect the updated patch patch-v4l2-ctl__v4l2-ctl.cpp

Fix handling of getting and setting v4l2 controls.
The unpatched implementation depends on a Linux specific behaviour of
getsubopt(3):

> If the first suboption in optionp is recognized, getsubopt() returns
> the index of the matching suboption element  in tokens. Otherwise, -1
> is returned and *valuep is the entire name[=value] string.

The "Otherwise..." part is implemented differently on FreeBSD. The file gets now
patched to use a local and reduced implementation of getsubopt(3) to fix this

Approved by:	nox

- Drop @dirrm* from and add empty directories to pkg-plists

Approved by:	portmgr blanket

Modernize LIB_DEPENDS

With hat:	portmgr

Switch my ports to USES=  tar:...

- Stage support

Add NO_STAGE all over the place in preparation for the staging support (cat:
multimedia)

- Remove MAKE_JOBS_SAFE variable

Approved by:	portmgr (bdrewery)

Update to 0.8.8 .

Add v4l-utils 0.8.4.

This port contains a number of tools for manupilating v4l* devices.

Initial port of 0.8.3 by nox@, some polish and update to 0.8.4 by myself.