-c:v libx265 -preset slower -crf 18 \ -x265-params "aq-mode=4:aq-strength=0.8:no-sao=1:deblock=-1,-1:zone=0,0,b=1.2"
. This is the "sweet spot" for x265. It allows the encoder enough time to find efficient compression patterns without taking days to finish a single movie. Profile/Level
or a similar command-line tool, here is the technical breakdown of the settings found in their releases: Rarbg X265 Encoding Settings
x265 (10-bit is preferred for better color depth and less banding). Rate Control: CRF (Constant Rate Factor).
Master Rarbg X265 Encoding Settings for Perfect Videos RARBG was famous for crisp releases that did not take up much hard drive space. They achieved this by mastering the x265 video codec. You can use their secret formula to backup your own movies. The Core RARBG Setup -c:v libx265 -preset slower -crf 18 \ -x265-params
ffmpeg -i input_bluray.mkv -c:v libx265 -preset fast -x265-params crf=23:no-strong-intra-smoothing=1:aq-mode=2:aq-strength=1.0:psy-rd=1.0:psy-rdoq=1.0 -c:a aac -b:a 384k -ac 6 output_rarbg_style.mkv Use code with caution.
(SRT) format. Avoid "burning in" subtitles so users can turn them off. Recommended Handbrake "Quick Start" If you are using , configure these tabs: : Video Codec: H.265 (x265) , Framerate: Same as source , Constant Quality: , Encoder Preset: AAC (avcodec) , Bitrate: , Mixdown: 5.1 Channels Advanced Options : Copy/paste this into the box: aq-mode=3:psy-rd=2.0:psy-rdoq=1.0:deblock=-1,-1 Profile/Level or a similar command-line tool, here is
RARBG encodes are known for being "lean." They prioritize a watchable, clean image that fits into a predictable file size, usually ranging from 1.5GB to 2.5GB for a full-length feature film. They achieve this by using a Constant Rate Factor (CRF) approach combined with specific tuning for grain and motion. Core Encoding Parameters
The RARBG settings implicitly turned off sao via the aggressive aq-mode=3 . Disabling SAO is an advanced technique used to retain fine image grain and film texture, preventing the overly smooth, "plastic" look that plagues many automatic HEVC encodes.
Sample Adaptive Offset (SAO) is on by default in x265, but it tends to cause a slight blur or loss of fine detail (like skin texture). RARBG disabled this to keep images sharp. AQ-Mode: 3
Based on analysis of their internal encodes (and notes from former internal encoders who surfaced on forums after the shutdown), the standard RARBG x265 profile looked something like this:
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