Rarbg X265 Encoding Settings Better 2021 Guide
Note: Lower numbers mean higher quality but larger file sizes. 2. The Preset Parameter
ffmpeg -i input.mkv -c:v libx265 -crf 20 -preset slow -pix_fmt yuv420p10le -x265-params "aq-mode=3:strong-intra-smoothing=0:sao=0:deblock=-1,-1:psy-rd=2.0" -c:a aac -b:a 224k output.mp4 Use code with caution. Copied to clipboard Key Differences from RARBG RARBG Encoding Settings - GitHub Gist
RARBG’s settings achieved by:
Crucial. SAO is enabled by default in x265 to smooth out edges, but it frequently creates a "plastic" or "waxy" look on skin textures. Disabling SAO restores fine detail and sharpness.
Combine the philosophy of RARBG with 2025 algorithms. This preset will produce a 1080p file roughly 2GB-3GB that visually beats a 6GB RARBG encode. rarbg x265 encoding settings better
If you have ever wondered why some 2GB movie files look stunning while others look like pixelated soup, the answer lies in the encoding settings. This article explores the "better" approach to RARBG-style x265 encoding, how to identify high-quality releases, and what settings matter most for the modern viewer.
If you are archiving, add --hdr10-opt --chromaloc 2 for HDR content. RARBG rarely used these, and they are the final frontier for "better." Note: Lower numbers mean higher quality but larger
: 10-bit encoding is the single most effective way to improve on standard 8-bit x264/x265 releases.
These offsets lower the quantization parameter for chroma (color) channels. It prevents color bleeding and ensures vibrant, accurate color representation even at lower bitrates. 3. Audio and Subtitle Optimization Copied to clipboard Key Differences from RARBG RARBG
A common mistake is encoding a beautiful 2GB video file but leaving a 1.5GB DTS-HD Master Audio track attached. To mimic the RARBG style: AAC (avcodec) or Opus. Bitrate: 224kbps to 640kbps (for 5.1 Surround).
| Feature | RARBG | Our "Better" Setting | Why it wins | | :--- | :--- | :--- | :--- | | | Medium | Slow | 15% smaller file for same quality, or 15% better quality for same size. | | SAO | Auto (On) | no-sao=1 | Preserves grain. Faces look like faces, not plastic. | | AQ Mode | 2 (Auto-variance) | aq-mode=3 (Auto-variance with bias) | Dark scenes (Game of Thrones) retain shadow detail. | | Psycho-Visual | Low (1.0) | psy-rd=2.0 | Retains texture in grass, fabric, and skin pores. | | Deblock | Default (0,0) | deblock=-1,-1 | Sharper edges without ringing artifacts. | | Qcomp | 0.6 | 0.7 | Slightly more bitrate to high-motion scenes (explosions, sports). |