libraries/nv-codec-headers: Added (Nvidia codec headers for ffmpeg).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

libraries/nv-codec-headers/README

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+The FFmpeg version of Nvidia Codec SDK headers which are required
+to interface with Nvidia's codec APIs. The purpose of these
+headers is to allow hardware (GPU) encoding with suitable NVidia
+cards. This version corresponds to Video Codec SDK version 8.1.24.
+
+There are 3 stages of the history of NVidia GPU encoding with FFmpeg:
+
+ 1. Pre August 27th 2016 it was necessary to track down your own
+    headers to build nvenc.
+ 2. Post August 27th 2016 the required headers were incorporated
+    as part of the FFmpeg source.
+ 3. Post February 26th 2018 the NVidia headers were removed from
+    the FFmpeg source. A separate git repository was created to hold
+    continuing work with these headers.
+
+This nv-codec-headers script is for point 3 where the headers will
+need to be installed before compiling FFmpeg.

libraries/nv-codec-headers/nv-codec-headers.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for nv-codec-headers
+
+# Copyright 2018, Andrew Strong, Blue Mountains, Australia.
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PRGNAM=nv-codec-headers
+# Note that the version number is contained
+# within the file ffnvcodec.pc.in:
+VERSION=${VERSION:-8.1.24.3}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  LIBDIRSUFFIX="64"
+else
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Adjust Makefile for Slackware needs:
+sed -i 's#PREFIX = /usr/local#PREFIX = /usr#' Makefile
+sed -i "s#LIBDIR = lib#LIBDIR = lib${LIBDIRSUFFIX}#" Makefile
+
+make
+make install DESTDIR=$PKG
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a README $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

libraries/nv-codec-headers/nv-codec-headers.info

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+PRGNAM="nv-codec-headers"
+VERSION="8.1.24.3"
+HOMEPAGE="http://git.videolan.org/?p=ffmpeg/nv-codec-headers.git;a=summary"
+DOWNLOAD="http://www.andrews-corner.org/downloads/SBo/nv-codec-headers-8.1.24.3.tar.gz"
+MD5SUM="789fb607ac3a3fb890b0effda00bdad8"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Andrew Strong"
+EMAIL="andrew.david.strong@gmail.com"

libraries/nv-codec-headers/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+                |-----handy-ruler------------------------------------------------------|
+nv-codec-headers: nv-codec-headers (FFmpeg version of Nvidia Codec SDK headers)
+nv-codec-headers:
+nv-codec-headers: FFmpeg version of headers required to interface with Nvidia's
+nv-codec-headers: codec APIs. Corresponds to Video Codec SDK version 8.1.24.
+nv-codec-headers:
+nv-codec-headers:
+nv-codec-headers:
+nv-codec-headers: http://git.videolan.org/?p=ffmpeg/nv-codec-headers.git;a=summary
+nv-codec-headers:
+nv-codec-headers:
+nv-codec-headers: