Here are all the fast presets with encoding FPS, speed, bitrate and end file size compared to the source media.Įach preset individually through the CRF spectrum: ultrafast H.264 ultrafast preset superfast H.264 superfast preset veryfast H.264 veryfast preset faster H.264 faster preset fast H.264 fast preset This is especially relevant for when I do the HEVC H.265 testing with a 400Mbps 10 bit 4k video file. This file was chosen because of its size, a large resolution with a very beefy bitrate. At 4k resolution (3840×2160) 29.97 fps, 30 seconds long, 250Mbps bitrate and a file size of 895MB. Thanks to the source media file for the H.264 testing was this file here. The Xeon E-2246G is a very recently released CPU (Q2 2019). Total amount of Swap : 1951 MB (0 MB Used) Total amount of Mem : 32068 MB (365 MB Used) Total size of Disk : 877.5 GB (25.1 GB Used) CPU model : Intel(R) Xeon(R) E-2246G CPU 3.60GHz

The serverĪn Intel Xeon E-2246G CPU 6 cores, 12 threads at 3.60GHz boosted to 4.80GHz with 32GB of ram and SSD disk running Ubuntu 18.04. Ultrafast, superfast, veryfast, faster and fast with CRF values 20 through to 30. Starting with this post which is the fast presets for H.264. The posts will be split up with a finale putting the fasts and slows presets from both H.264 with HEVC.

This comprehensive FFmpeg encoding comparison includes H.264 and H.265 HEVC from the fastest preset ultrafast through to veryslow with CRF values from 20 to 30.

Ffmpeg crf 0