# ffprobe prints stderr, redirect to be able to grepįfprobe filename 2>&1 | grep displaymatrixįfprobe version N-106826-gf1c19867d7 Copyright (c) 2007-2022 the FFmpeg developersĬonfiguration: -pkg-config-flags=-static -extra-libs='-lpthread -lm' -ld=g++ -bindir=/home/user/bin -enable-gpl -enable-libaom -enable-libsvtav1 -enable-libass -enable-libfdk-aac -enable-libfreetype -enable-libmp3lame -enable-libopus -enable-libdav1d -enable-libvorbis -enable-libvpx -enable-libx264 -enable-libx265 -enable-nonfree To show the information about a video file, use ffprobe: ffprobe filename Instead, I compile FFmpeg from source: git clone -depth 1 Ĭommit ef14518388c0a41c1d3b992f75d5886c9da33832Ĭmake -G 'Unix Makefiles' -DENABLE_TESTS=OFF -DENABLE_NASM=on. apt-get install ffmpeg libaom0 libaom-dev nasm yasm libx264-dev libx265-dev libnuma-dev libfdk-aac-dev libopus-dev libass-dev libdav1d-dev libmp3lame-dev libvorbis-dev libvpx-dev I installed FFmpeg and libaom from apt but I don't recommend doing this because it is better to use the latest AV1 encoders.

I film with my iPhone in 4k 60 fps hevc and I don't have a computer that can play these videos so I also scale down the resolution.Įncoding the iPhone videos in h264 (using the parameters below) make them 20 times smaller, I transfer back to the videos to iPhone to save space and avoid having to use iCloud.

I encode my videos with libaom to get smaller files for a given quality because it takes a finite time to encode and I will store the videos forever.

In pass 2, libaom uses 2 cores at 100% and svt1-av1 uses the 16 cores at 100%. I usually encode videos in 2 passes, libaom uses my 16 cores at 33% in pass 1 while svt-av1 uses the 16 cores at 100%. The svt-av1 encoder is optimized for speed and produces bigger files than libaom. Libaom is the reference codec, it produces smaller files than svt-av1 but it is slow.

I don't encode many videos but I want to try the newest video and audio codecs:ĪV1 is implemented in libaom and svt-av1.

Ffmpeg av1