CRF ranges from 0 to 51. Lower numbers mean higher quality and larger files.
ffmpeg -i input.mp4 -c:v libx265 -crf 22 -preset slow -c:a aac -b:a 192k output.mp4 Use code with caution. Command Breakdown: -i input.mp4 : Tells the program your source file. -c:v libx265 : Uses the software-based x265 encoder library. -crf 22 : Targets a balanced visual quality level. shrinking x265
The next time you download a 1.5GB x265 “1080p” movie, ask yourself: Are you saving space, or are you watching a ghost of the original? CRF ranges from 0 to 51
