First, install Homebrew, then run: brew install ffmpeg The Hombrew core FFmpeg formulae contains support for libvorbis by default (as of ). You can just download the executable and optionally put it in /usr/local/bin. Already compiled macOS builds of ffmpeg are available and come with libvorbis support. Note: Vorbis has been made obsolete by Opus, so consider using libopus instead–especially if you are encoding to VP9/ VP8 (WebM). Your ffmpeg build is not compiled with -enable-libvorbis which is required if you want libvorbis support in ffmpeg, but you have some options: Here is the full log: ffmpeg -y -i /public/uploads/tmp/1382112521-11953-7661/webm_Untitled.mov -vcodec libvpx -acodec libvorbis -s 640x360 -b 1500k -ab 160000 -f webm -g 30 -aspect 1.7777777777777777 /public/uploads/tmp/1382112521-11953-7661/tmpfile.webmįfmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developersīuilt on 12:20:19 with Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)Ĭonfiguration: -prefix=/usr/local/Cellar/ffmpeg/1.2.1 -enable-shared -enable-pthreads -enable-gpl -enable-version3 -enable-nonfree -enable-hardcoded-tables -enable-avresample -enable-vda -cc=cc -host-cflags= -host-ldflags= -enable-libx264 -enable-libfaac -enable-libmp3lame -enable-libxvid -enable-libvpx I already have libvorbis installed on my machine, though (When I try 'brew install libvorbis, it tells me: Warning: libvorbis-1.3.3 already installed). I get the error Unknown encoder 'libvorbis'

I'm unable to transcode a video file to webm because my machine isn't able to find libvorbis.

Ffmpeg concat vorbis encoder error