Enable ffmpeg/libav-based audio/video codec support
| Package | “system-ffmpeg” Flag Description |
|---|---|
| app-admin/sudo | Use message digest functions from dev-libs/libgcrypt, dev-libs/libressl or dev-libs/openssl instead of sudo's internal SHA2 implementation |
| app-arch/deltarpm | Use system sys-libs/zlib. Do not enable features of rsync friendly. |
| app-emulation/faudio | FAudio has optional support for decoding xWMA resources using FFmpeg, requiring: media-video/ffmpeg (note: this feature is not supported by media-video/libav). |
| app-emulation/wine-any | Use media-video/ffmpeg to decode WMA formats |
| app-emulation/wine-staging | Use media-video/ffmpeg to decode WMA formats |
| app-emulation/xen-tools | Using sys-firmware/seabios instead of the bundled one |
| app-text/sigil | Use the system-wide dev-libs/mathjax instead of bundled |
| dev-haskell/cmark | use app-text/cmark instead of bundled copy |
| dev-haskell/hslua | Use the system-wide lua instead of the bundled copy. |
| dev-haskell/yaml | Use system libyaml instead on generic one |
| dev-java/icedtea | Build against the system LCMS installation rather than the in-tree copy. |
| dev-lang/go | Bootstrap using previously installed dev-lang/go |
| dev-lang/rust | Use the system LLVM install |
| dev-lang/spidermonkey | Use the system-wide dev-libs/icu instead of bundled -- note, only takes effect when icu flag is enabled |
| dev-libs/efl | Use system liblz4 instead of bundled one |
| dev-perl/Convert-UUlib | Use dev-libs/uulib instead of bundled version. |
| dev-perl/DBD-SQLite | Use the system-wide dev-db/sqlite installation |
| dev-qt/qtwebengine | Use the system-wide dev-libs/icu instead of bundled. |
| dev-util/apitrace | Link dynamic against app-arch/snappy |
| dev-util/catalyst | Pulls in the depends needed to setup livecd bootloader from the host system rather than using a cdtar |
| dev-util/cmake | Use system copy of dev-libs/jsoncpp instead of bundled one. |
| dev-util/electron | Use system OpenSSL instead of the bundled one |
| dev-util/emilpro | Use the gentoo binutils instead of building against an unpatched vanilla version |
| dev-util/intel-ocl-sdk | Use system Thread Building Blocks (dev-cpp/tbb) instead of bundled one |
| dev-vcs/fossil | Use the system SQLite instead of the bundled one |
| games-emulation/ppsspp | Use the system-wide media-video/ffmpeg instead of bundled |
| games-misc/katawa-shoujo | Use games-engines/renpy instead of the bundled one (experimental) |
| games-strategy/defcon-demo | Use system libraries instead of the ones included in the upstream distribution. |
| games-strategy/freeciv | Use dev-lang/lua instead of the bundled liblua |
| mail-client/thunderbird | Use the system-wide media-libs/libwebp instead of bundled. |
| media-gfx/pngcrush | Use libpng and libz provided by system |
| media-libs/avidemux-core | Use the ffmpeg provided by the system. |
| media-sound/beets | Enable support for the convert plugin to transcode files via media-video/ffmpeg |
| media-sound/pulseaudio | Allow preparation and installation of the system-wide init script for PulseAudio. Since this support is only supported for embedded situations, do not enable without reading the upstream instructions at https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/ . |
| media-tv/kodi | Use system ffmpeg instead of the bundled one |
| net-analyzer/nmap | Use dev-lang/lua instead of the bundled liblua |
| net-fs/samba | Use app-crypt/mit-krb5 instead of app-crypt/heimdal. |
| net-p2p/bitcoin-qt | Use the system-wide dev-libs/leveldb instead of bundled |
| net-p2p/bitcoind | Use the system-wide dev-libs/leveldb instead of bundled |
| sys-cluster/ceph | Use system dev-libs/boost instead of the bundled one |
| sys-process/fcron | Set up fcron to respect /etc/crontab and /etc/cron.d. If this flag is disabled, /etc/cron.d and /etc/crontab will be ignored, but /etc/cron.{hourly,daily,weekly,monthly} will still be respected. |
| www-client/chromium | Use system libvpx instead of the bundled one |
| www-client/firefox | Use the system-wide media-libs/libwebp instead of bundled. |
| www-client/seamonkey | Use the system-wide dev-db/sqlite installation with secure-delete enabled |