VMAF 95 - crf 20 preset 5




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Encoding

Ab-av1
crf-search -i "D:\file.mkv" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --min-vmaf 96
crf 21 VMAF 95.46 predicted video stream size 1.43 GiB (6%) taking 80 minutes*
crf 20 VMAF 95.60 predicted video stream size 1.53 GiB (6%) taking 2 hours - over 2gb :(
crf 18 VMAF 95.92 predicted video stream size 1.77 GiB (7%) taking 88 minutes
crf 12 VMAF 97.01 predicted video stream size 4.14 GiB (17%) taking 2 hours*
crf 11 VMAF 97.23 predicted video stream size 5.23 GiB (22%) taking 2 hours

Handbrake 1.8.2 (2024081000)
Video.svt-av1 10 bit fast decode Preset 5 crf 20
Audio.128 kbps opus 2.0
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File

Video: AV01 1920x1080 23.976fps [V: av1 main, yuv420p10le, 1920x1080 [default]]
Audio: Opus 48000Hz stereo 3072kbps [A: 128 kbps opus [eng] (opus, 48000 Hz, stereo) [default]]
Subtitle [S: English [eng] (pgs)]
Subtitle [S: Forced Subtitles (auto)]
Subtitle: UTF-8 [S: No subtitles]

General
Unique ID : 74602944369430670183514197252070473596 (0x38200123A3851BD4E338A0D54F607F7C)
Complete name : Land.Of.Bad.2024.bluray.sdr.1080p.av1.vmaf95-Rosy.mkv
Format : Matroska
Format version : Version 4
File size : 1.90 GiB
Duration : 1 h 53 min
Overall bit rate : 2 396 kb/s
Frame rate : 23.976 FPS
Movie name : Land.Of.Bad.2024.bluray.sdr.1080p.av1.vmaf95-Rosy
Encoded date : 2024-11-09 16:45:40 UTC
Writing application : mkvmerge v88.0 ('All I Know') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Cover : Yes
Attachments : cover.jpg

Video
ID : 1
Format : AV1
Format/Info : AOMedia Video 1
Format profile : [email protected]
Codec ID : V_AV1
Duration : 1 h 53 min
Bit rate : 2 269 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 0)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.046
Stream size : 1.80 GiB (95%)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 1 h 53 min
Bit rate : 119 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 50.000 FPS (960 SPF)
Compression mode : Lossy
Stream size : 96.6 MiB (5%)
Title : 128 kbps opus
Language : English
Default : Yes
Forced : No
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Source

Video: MPEG4 Video (H264) 1920x1080 23.976fps [V: BEN.THE.MEN [eng] (h264 high L4.1, yuv420p, 1920x1080) [default,forced]]
Audio: TrueHD 48000Hz 6ch 6912kbps [A: BTM TrueHD [eng] (truehd, 48000 Hz, 5.1(side), s24) [default,forced]]
Audio: Dolby AC3 48000Hz 6ch 640kbps [A: BTM DD 5.1 [eng] (ac3, 48000 Hz, 5.1(side), 640 kb/s)]
Audio: DD+ 44100Hz 6ch 639kbps [A: BTM DDP5.1 [spa] (eac3, 44100 Hz, 5.1(side), 639 kb/s)]
Audio: DD+ 44100Hz 6ch 639kbps [A: BTM DDP5.1 [ita] (eac3, 44100 Hz, 5.1(side), 639 kb/s) [hearing impaired]]
Audio: DD+ 44100Hz 6ch 639kbps [A: BTM DDP5.1 [fre] (eac3, 44100 Hz, 5.1(side), 639 kb/s) [hearing impaired]]
Audio: DD+ 48000Hz 6ch 640kbps [A: BTM DDP5.1 [pol] (eac3, 48000 Hz, 5.1(side), 640 kb/s) [hearing impaired]]
Audio: DD+ 44100Hz 6ch 639kbps [A: BTM DDP5.1 [rus] (eac3, 44100 Hz, 5.1(side), 639 kb/s) [hearing impaired]]
Subtitle [S: BTM [eng] (pgs)]
Subtitle [S: Forced Subtitles (auto)]
Subtitle: UTF-8 [S: No subtitles]

General
Unique ID : 30158487284498689576936760309728872238 (0x16B050394500527F80A426CEFCB3072E)
Complete name : Land.Of.Bad.2024.1080p.BluRay.REMUX.ENG.LATINO.ITALIAN.FRENCH.POLISH.RUSSIAN.TrueHD.5.1.H264-BEN.THE.MEN.mkv
Format : Matroska
Format version : Version 4
File size : 28.1 GiB
Duration : 1 h 53 min
Overall bit rate mode : Variable
Overall bit rate : 35.4 Mb/s
Frame rate : 23.976 FPS
Movie name : Land.Of.Bad.2024.1080p.BluRay.REMUX[Ben The Men]
Encoded date : 2024-08-17 19:01:14 UTC
Writing application : mkvmerge v86.0 ('Winter') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Attachments : BEN.THE.MEN.TORRENTS.jpg

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 4 frames
Format settings, Slice count : 4 slices per frame
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 53 min
Bit rate mode : Variable
Bit rate : 30.0 Mb/s
Maximum bit rate : 35.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (23976/1000) FPS
Original frame rate : 23.976 (24000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.603
Stream size : 23.8 GiB (85%)
Title : BEN.THE.MEN
Language : English
Default : Yes
Forced : Yes
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio #1
ID : 2
Format : MLP FBA
Format/Info : Meridian Lossless Packing FBA
Commercial name : Dolby TrueHD
Codec ID : A_TRUEHD
Duration : 1 h 53 min
Bit rate mode : Variable
Bit rate : 1 486 kb/s
Maximum bit rate : 3 552 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Compression mode : Lossless
Stream size : 1.18 GiB (4%)
Title : BTM TrueHD
Language : English
Default : Yes
Forced : Yes
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Tools

Ab-av1
FFBitrateViewer
FFmpeg
FFmetrics
Freefilesync
Handbrake
Jackett
Mediainfo
Mkvtoolknix
Qbittorent
Scenerulez
Shutterencoder
VVV-virtualvolumeview
Xnconvert
Xnview mp

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AV1 guide v13

Step 1 - Check VMAF with Ab-av1

1. AV1
Source resolution → crf-search -i "c:\file.mkv" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --min-vmaf 98
1080p Downscale → crf-search -i "c:\file.mkv" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --min-vmaf 96 --vfilter "scale=-1:1080"
720p Downscale → crf-search -i "c:\file.mkv" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --min-vmaf 96 --vfilter "scale=-1:720"
Sample encode → sample-encode -i "c:\file.mkv" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --crf 20
2. x265
Source resolution → crf-search -i "c:\file.mkv" --encoder libx265 --pix-format yuv420p10le --preset medium --min-samples 20 --enc x265-params=fastdecode=1 --min-vmaf 98
1080p Downscale → crf-search -i "c:\file.mkv" --encoder libx265 --pix-format yuv420p10le --preset medium --min-samples 20 --enc x265-params=fastdecode=1 --min-vmaf 96 --vfilter "scale=-1:1080"
720p Downscale → crf-search -i "c:\file.mkv" --encoder libx265 --pix-format yuv420p10le --preset medium --min-samples 20 --enc x265-params=fastdecode=1 --min-vmaf 96 --vfilter "scale=-1:720"

Step 2 - HandBrake

Summary:
- Container: MKV
Dimensions:
- Cropping: None
- Anamorphic: None
- Borders: None
Video:
- Encoder: AV1 (10-bit SVT)
- Framerate: Same as source
- Preset: 5
- Fast Decode: ✓
- Encoder Profile: Main
- Encoder Level: Auto
- Quality: CRF determined from "ab-av1"(1)
Audio:
- DTS to Opus Conversion:
- DTS 7.1 → Opus @ 512 kbps
- DTS 5.1 → Opus @ 384 kbps
- DTS 2.0 → Opus @ 128 kbps
*When passtrough? lossy codec(opus,aac, ac3, eac3,wma) 768-128 kbps

Step 3 - Subtitles

- Original → passtrough
- Subtitle Translator
- Whisper OpenAI
- Opensubtitles
- Subtitlecat
*If size is an issue don`t use pgs, prefer ass/srt.
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References

1. Dolby, 2023. What are Dolby Vision profiles and levels? [Online]
2. Ozer, J., 2017. Video Encoding by the Numbers: Eliminate the Guesswork from your Streaming Video. Doceo Publishing.
3. Sayood, K., 2017. Introduction to Data Compression. 5th Edition.
4. Ozer, J., 2021. What is CBR, VBR, CRF, Capped-CRF? Rate Control Modes Explained.
5. Rassool, Reza. VMAF Reproducibility: Validating a Perceptual Practical Video Quality Metric.
6. Kah, A. e al. Fundamental relationships between subjective quality, user acceptance, and the VMAF metric for a quality-based bit rate ladder design for over-the-top video streaming services.