ffmpeg -i INPUTMOVIE.mkv \ -map 0:V:0 -map 0:m:language:eng -map 0:s? -disposition:s:0 default \ -c:a eac3 -ac 6 -b:a 384k -c:s copy \ -c:v libx265 -pix_fmt yuv420p10le -preset slow -crf 22 \ -maxrate 4500K -bufsize 9M \ -x265-params "max-merge=5:limit-refs=3:rd=4:rc-lookahead=48:bframes=8:aq-mode=3" \ OUTPUTMOVIE.mkv
Specifically, their releases became the benchmark for quality-to-size ratio.
| Setting Category | RARBG / GalaxyRG265 Value | Alternative | Why RARBG Chose This | | :--- | :--- | :--- | :--- | | | 10-bit (yuv420p10le) | 8-bit | Eliminates banding; improves efficiency. | | CRF | 22 | 16–20 (higher quality) | Perfect size/quality balance for distribution. | | Preset | Slow | Medium / Slower | Maximum quality without exponential encoding time. | | Maxrate | 4500 Kbps | 8000+ Kbps | Prevents file size spikes during complex scenes. | | AQ Mode | 3 | 1 (default) | Focuses bits on flat/dark areas to prevent blocking. | | Audio | E-AC3 (DD+) 384k | AAC / AC3 | High-efficiency surround sound for streaming. | Rarbg X265 Encoding Settings
It prevents the x265 encoder from "washing away" natural film grain, keeping the texture of the movie intact. GOP (Group of Pictures) Size Parameter: --keyint 240 --min-keyint 24
Always test your settings on a short, high-motion action chapter before processing an entire movie. If you notice too much blurriness in dark corners, raise your aq-strength to 1.2 . If the file size is still too large for your archiving needs, step the CRF down to 24 . ffmpeg -i INPUTMOVIE
These settings tell the encoder to favor sharp, grainy images over perfectly smooth, blurry ones. --psy-rd 2.0 --psy-rdoq 1.0
Disables the built-in blurring filter. This keeps the image sharp and preserves film grain. Motion Search and Frame Structure | | CRF | 22 | 16–20 (higher
With RARBG gone, the closest spiritual successors in terms of "public" accessibility and similar quality/size targets are groups like , UTR , and the encoders featured on sites like Pahe.in (though Pahe is smaller). However, for the specific balance of settings RARBG struck, they remain a benchmark for "good enough" high-definition viewing.
A standard 1080p RARBG encode often used an average video bit rate of around 2000 kbps. This is remarkably low compared to older x264 encodes, proving the sheer efficiency of HEVC. 2. Tuning for HEVC ( --psy-rd and --psy-rdoq )
RARBG's strategy focused on balancing compatibility and compression efficiency. They generally used a 2-pass encoding method to hit specific bitrate targets rather than a Constant Rate Factor (CRF). x265 (HEVC) Rate Control: 2-pass Average Bitrate (ABR) Typical Video Bitrates: 1080p: ~2000 kb/s to 2500 kb/s 720p: ~1500 kb/s 480p: ~1100 kb/s Audio: AAC, LC, 224 kb/s (often 6-channel for 1080p/720p)
Slight unblocking adjustments prevent the encoder from overly softening edges.