Userhevc

When you invoke ffmpeg -c:v hevc (the alias for libx265 ), the following pipeline executes in user space:

UserHEVC is not magic. It is . By understanding how your eyes perceive artifacts and how your content behaves, you can shrink file sizes by 30-50% without noticeable loss. userhevc

ffmpeg -y -i input.mp4 -c:v libx265 -b:v 2000k -x265-params pass=1 -an -f mp4 /dev/null ffmpeg -i input.mp4 -c:v libx265 -b:v 2000k -x265-params pass=2 -c:a aac -b:a 128k output_hevc.mp4 When you invoke ffmpeg -c:v hevc (the alias