pacman -Si ffmpeg                                                     
Repository      : extra
Name            : ffmpeg
Version         : 1:4.1-1
Description     : Complete solution to record, convert and stream audio and
                  video
Architecture    : x86_64
URL             : http://ffmpeg.org/
Licenses        : GPL3
Groups          : None
Provides        : libavcodec.so=58-64  libavdevice.so=58-64
                  libavfilter.so=7-64  libavformat.so=58-64  libavutil.so=56-64
                  libpostproc.so=55-64  libswresample.so=3-64
                  libswscale.so=5-64
Depends On      : alsa-lib  aom  bzip2  fontconfig  fribidi  glibc  gmp  gnutls
                  gsm  jack  lame  libavc1394  libdrm  libiec61883  libmodplug
                  libomxil-bellagio  libpulse  libraw1394  libsoxr  libssh
                  libtheora  libvdpau  libwebp  libx11  libxcb  libxext
                  libxml2  libxv  opencore-amr  openjpeg2  opus  sdl2  speex
                  v4l-utils  xz  zlib  libass.so=9-64  libbluray.so=2-64
                  libfreetype.so=6-64  libva-drm.so=2-64  libva.so=2-64
                  libva-x11.so=2-64  libvidstab.so=1.1-64  libvorbisenc.so=2-64
                  libvorbis.so=0-64  libvpx.so=5-64  libx264.so=155-64
                  libx265.so=165-64  libxvidcore.so=4-64
Optional Deps   : ladspa: LADSPA filters
Conflicts With  : None
Replaces        : None
Download Size   : 8.53 MiB
Installed Size  : 29.05 MiB
Packager        : Maxime Gauduin <alucryd@archlinux.org>
Build Date      : Tue 06 Nov 2018 07:27:56 PM CET
Validated By    : MD5 Sum  SHA-256 Sum  Signature