build: Initial version 4.4.1-1

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+# Maintainer: tytan652 <tytan652 at tytanium dot xyz>
+
+## About ffmpeg-obs
+
+# OBS Project actually patch FFmpeg to fix some issues and also add RIST support starting from 27.2.
+# So I created ffmpeg-obs, a ffmpeg package that ensure that you have those.
+# If you really want to use another ffmpeg package with obs-studio-tytan652:
+# - Add cherry-pick from ffmpeg-obs except if you are using a git package.
+# - Add obs-deps FFmpeg patches.
+# - Add librist as an dependency and --enable-librist flag to the configure command except is you are using a full package.
+# - Add ffmpeg-obs to the provided packages, so it acts like a drop-in replacement for ffmpeg-obs.
+
+pkgname=ffmpeg-obs
+pkgver=4.4.1
+pkgrel=1
+pkgdesc='Complete solution to record, convert and stream audio and video with modification for OBS Studio'
+arch=('i686' 'x86_64' 'aarch64')
+url=https://ffmpeg.org/
+license=(GPL3)
+depends=(
+  alsa-lib
+  aom
+  bzip2
+  fontconfig
+  fribidi
+  gmp
+  gnutls
+  gsm
+  jack
+  lame
+  libass.so
+  libavc1394
+  libbluray.so
+  libdav1d.so
+  libdrm
+  libfreetype.so
+  libiec61883
+  libmodplug
+  libpulse
+  librav1e.so
+  libraw1394
+  librsvg-2.so
+  libsoxr
+  libssh
+  libtheora
+  libva.so
+  libva-drm.so
+  libva-x11.so
+  libvdpau
+  libvidstab.so
+  libvorbisenc.so
+  libvorbis.so
+  libvpx.so
+  libwebp
+  libx11
+  libx264.so
+  libx265.so
+  libxcb
+  libxext
+  libxml2
+  libxv
+  libxvidcore.so
+  libzimg.so
+  opencore-amr
+  openjpeg2
+  opus
+  sdl2
+  speex
+  srt
+  v4l-utils
+  xz
+  zlib
+
+  # AUR packages
+  librist
+)
+makedepends=(
+  amf-headers
+  avisynthplus
+  clang
+  ffnvcodec-headers
+  git
+  ladspa
+  nasm
+)
+optdepends=(
+  'avisynthplus: AviSynthPlus support'
+  'ladspa: LADSPA filters'
+  'nvidia-utils: Nvidia NVDEC/NVENC support'
+)
+provides=(
+  ffmpeg
+  libavcodec.so
+  libavdevice.so
+  libavfilter.so
+  libavformat.so
+  libavutil.so
+  libpostproc.so
+  libswresample.so
+  libswscale.so
+)
+conflicts=(ffmpeg)
+_tag=7e0d640edf6c3eee1816b105c2f7498c4f948e74
+_deps_tag=2021-11-15 # Yes, they made the tag wrong, it was made on 2021-12-15
+source=(
+  "ffmpeg::git+https://git.ffmpeg.org/ffmpeg.git#tag=${_tag}"
+  "obs-deps::git+https://github.com/obsproject/obs-deps.git#tag=${_deps_tag}"
+  "vmaf-model-path.patch"
+)
+sha256sums=(
+  "SKIP"
+  "SKIP"
+  "8dff51f84a5f7460f8893f0514812f5d2bd668c3276ef7ab7713c99b71d7bd8d"
+)
+
+if [[ $CARCH == 'x86_64' ]]; then
+  CONFIG="--enable-lto"
+
+  depends+=('libmfx')
+  CONFIG="$CONFIG --enable-libmfx"
+  depends+=('svt-av1')
+  CONFIG="$CONFIG --enable-libsvtav1"
+
+  optdepends+=('intel-media-sdk: Intel QuickSync support')
+else
+  CONFIG="--disable-lto"
+fi
+
+if [[ $CARCH == "i686" || $CARCH == "x86_64" ]]; then
+  depends+=('vmaf')
+  CONFIG="$CONFIG --enable-libvmaf"
+fi
+
+if [[ $CARCH == 'aarch64' ]]; then
+  CONFIG="$CONFIG --host-cflags=\"-fPIC\""
+fi
+
+pkgver() {
+  cd ffmpeg
+
+  git describe --tags | sed 's/^n//'
+}
+
+prepare() {
+  cd ffmpeg
+
+  ### Arch Linux changes
+
+  ## To fix nvenc on older gpus
+  # avcodec/nvenc: fix lossless tuning logic 
+  # https://github.com/FFmpeg/FFmpeg/commit/988f2e9eb063db7c1a678729f58aab6eba59a55b
+  git cherry-pick -n 988f2e9eb063db7c1a678729f58aab6eba59a55b
+
+  ## Change default vmaf model path to Arch defaults
+  patch -Np1 -i "${srcdir}"/vmaf-model-path.patch
+
+  ### OBS changes
+
+  ## To fix crashes when VAAPI settings are wrong
+  # avcodec/vaapi_encode: Fix segfault upon closing uninitialized encoder
+  # https://github.com/FFmpeg/FFmpeg/commit/d1b47f3bfcc625ca1cae210fc198dcbd54381a88
+  git cherry-pick -n d1b47f3bfcc625ca1cae210fc198dcbd54381a88
+
+  ## Patch for FFmpeg from obs-deps repository
+
+  # This patch applies:
+  #  - Fix decoding of certain malformed FLV files
+  #  - Add additional CPU levels for libaom
+  patch -Np1 -i "${srcdir}"/obs-deps/CI/patches/FFmpeg-4.4.1-OBS.patch
+
+  # avformat/hlsenc: remove unnecessary http/https shutdown status operate
+  # https://patchwork.ffmpeg.org/project/ffmpeg/patch/20210913021204.22138-1-lq@chinaffmpeg.org/
+  patch -Np1 -i "${srcdir}"/obs-deps/CI/patches/FFmpeg-9010.patch
+
+  ## This patch applies:
+  #   - avformat/librist: replace deprecated functions
+  #     https://github.com/FFmpeg/FFmpeg/commit/5274f2f7f8c5e40d18b84055fbb232752bd24f2f
+  #   - avformat/librist: correctly initialize logging_settings
+  #     https://github.com/FFmpeg/FFmpeg/commit/9b15f43cf8c7976fba115da686a990377f7b5ab9
+  #   - libRIST: allow setting fifo size and fail on overflow
+  #     https://patchwork.ffmpeg.org/project/ffmpeg/patch/20211117141929.1164334-2-gijs@peskens.net/
+  patch -Np1 -i "${srcdir}"/obs-deps/CI/patches/FFmpeg-4.4.1-librist.patch
+
+  # Fix "error: unknown type name ‘bool’" made by the patch because stdbool.h is only added through librist from version 0.2.7
+  sed -i '49 a #if FF_LIBRIST_VERSION < FF_LIBRIST_VERSION_42\n#include <stdbool.h>\n#endif' libavformat/librist.c
+
+  # Fix some typo made in the patch if built against librist 0.2.6
+  sed -i 's/FF_LIBRIST_FIFO_DEFAULT)/FF_LIBRIST_FIFO_DEFAULT_SHIFT)/g' libavformat/librist.c
+  sed -i 's/fifo_buffer_size/fifo_shift/g' libavformat/librist.c
+}
+
+build() {
+  cd ffmpeg
+
+  ./configure \
+    --prefix=/usr \
+    --disable-debug \
+    --disable-static \
+    --disable-stripping \
+    --enable-amf \
+    --enable-avisynth \
+    --enable-cuda-llvm \
+    --enable-fontconfig \
+    --enable-gmp \
+    --enable-gnutls \
+    --enable-gpl \
+    --enable-ladspa \
+    --enable-libaom \
+    --enable-libass \
+    --enable-libbluray \
+    --enable-libdav1d \
+    --enable-libdrm \
+    --enable-libfreetype \
+    --enable-libfribidi \
+    --enable-libgsm \
+    --enable-libiec61883 \
+    --enable-libjack \
+    --enable-libmodplug \
+    --enable-libmp3lame \
+    --enable-libopencore_amrnb \
+    --enable-libopencore_amrwb \
+    --enable-libopenjpeg \
+    --enable-libopus \
+    --enable-libpulse \
+    --enable-librav1e \
+    --enable-librsvg \
+    --enable-libsoxr \
+    --enable-libspeex \
+    --enable-libsrt \
+    --enable-libssh \
+    --enable-libtheora \
+    --enable-libv4l2 \
+    --enable-libvidstab \
+    --enable-libvorbis \
+    --enable-libvpx \
+    --enable-libwebp \
+    --enable-libx264 \
+    --enable-libx265 \
+    --enable-libxcb \
+    --enable-libxml2 \
+    --enable-libxvid \
+    --enable-libzimg \
+    --enable-nvdec \
+    --enable-nvenc \
+    --enable-shared \
+    --enable-version3 \
+    --enable-librist \
+    $CONFIG
+
+  make
+  make tools/qt-faststart
+  make doc/ff{mpeg,play}.1
+}
+
+package() {
+  make DESTDIR="${pkgdir}" -C ffmpeg install install-man
+  install -Dm 755 ffmpeg/tools/qt-faststart "${pkgdir}"/usr/bin/
+}