VMAF 98 - crf 25 preset 7





____________________________________________________________

Release info
Actress: Kasey Warner
Tile: The Wetter The Better
Release date: 03/04/2015 (on the site, but I maintained the ktr date so people can find the file)
Site: This Girl Sucks
Description: Kasey has a reputation as a pretty decent cock gobbler. If a girls reputation for fellatio precedes her shoot with our boy Tony that usually means good things are about to go down! This fresh faced 18 year old makes no excuses either - she loves to suck dick and she couldnt wait to take all of Tonys meat. Shes had an oral fixation ever since she could remember and lucky for her we were here to help satisfy that craving. She happily told us about her technique and expertly demonstrated it when it was time to get down to business. Listen to the noises she makes when gagging on the dick and the amount of spit she uses to deepthroat! The couch was absolutely soaked! The way she strokes it and sucks at the same time is almost enough to make us go but instead she got Tony off and he rewarded her with his massive load all over face and eyes!
____________________________________________________________

Encoding

ab-av1 sample-encode --preset 7 --crf 25 --min-samples 20
VMAF 98.08 predicted video stream size 590.52 MiB (33%) taking 21 minutes

Handbrake 1.8.2 (2024081000)
Video.av1 10-bit 1080p fast decode crf 25 preset 7
Audio.aac 2.0 128 kbps passtrough
____________________________________________________________

File

Video: AV01 1920x1080 23.976fps [V: av1 main, yuv420p10le, 1920x1080 [default]]
Audio: AAC 44100Hz stereo [A: Stereo aac pastrough [eng] (aac lc, 44100 Hz, stereo) [default]]
Subtitle: UTF-8 [S: English [eng] (subrip) [default]]
Subtitle: UTF-8 [S: Arabic [ara] (subrip) [default]]
Subtitle: UTF-8 [S: German [ger] (subrip) [default]]
Subtitle: UTF-8 [S: Spanish [spa] (subrip) [default]]
Subtitle: UTF-8 [S: French [fre] (subrip) [default]]
Subtitle: UTF-8 [S: Hindi [hin] (subrip) [default]]
Subtitle: UTF-8 [S: Italian [ita] (subrip) [default]]
Subtitle: UTF-8 [S: Korean [kor] (subrip) [default]]
Subtitle: UTF-8 [S: English [eng] (subrip) [default]]
Subtitle: UTF-8 [S: Portuguese [por] (subrip) [default]]
Subtitle: UTF-8 [S: Russian [rus] (subrip) [default]]
Subtitle: UTF-8 [S: Chinese [chi] (subrip) [default]]
Subtitle: UTF-8 [S: Twi [twi] (subrip) [default]]
Subtitle: UTF-8 [S: No subtitles]

General
Unique ID                      : 324591918138874322463642023995419232244 (0xF4322125ED6446DD79D055AE155987F4)
Complete name                  : Thisgirlsucks.15.03.03.Kasey.Warner.xxx.1080p.av1.aisubs.vmaf98-Rosy.mkv
Format                         : Matroska
Format version                 : Version 4
File size                      : 591 MiB
Duration                       : 24 min 56 s
Overall bit rate               : 3 309 kb/s
Frame rate                     : 23.976 FPS
Movie name                     : Thisgirlsucks.15.03.03.Kasey.Warner.xxx.1080p.av1.aisubs.vmaf98-Rosy
Encoded date                   : 2024-11-12 05:41:31 UTC
Writing application            : mkvmerge v88.0 ('All I Know') 64-bit
Writing library                : libebml v1.4.5 + libmatroska v1.7.1

Video
ID                             : 1
Format                         : AV1
Format/Info                    : AOMedia Video 1
Format profile                 : Main@L4.0
Codec ID                       : V_AV1
Duration                       : 24 min 56 s
Bit rate                       : 3 178 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)             : 0.064
Stream size                    : 567 MiB (96%)
Default                        : Yes
Forced                         : No
Color range                    : Limited
Color primaries                : BT.709
Transfer characteristics       : BT.709
Matrix coefficients            : BT.709

Audio
ID                             : 2
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : A_AAC-2
Duration                       : 24 min 56 s
Bit rate                       : 128 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Delay relative to video        : -42 ms
Stream size                    : 22.8 MiB (4%)
Title                          : Stereo aac pastrough
Language                       : English
Default                        : Yes
Forced                         : No
____________________________________________________________

Source

Video: MPEG4 Video (H264) 1920x1080 11.988fps 10020kbps [V: English [eng] (h264 main L4.0, yuv420p, 1920x1080, 10020 kb/s)]
Audio: AAC 44100Hz stereo 128kbps [A: English [eng] (aac lc, 44100 Hz, stereo, 128 kb/s)]
General
Complete name                  : ThisGirlSucks.15.03.03.Kasey.Warner.XXX.1080p.MP4-KTR[rarbg]\tgs.15.03.03.kasey.warner.mp4
Format                         : MPEG-4
Format profile                 : Base Media / Version 2
Codec ID                       : mp42 (isom/mp41/avc1)
File size                      : 1.77 GiB
Duration                       : 24 min 56 s
Overall bit rate mode          : Variable
Overall bit rate               : 10.2 Mb/s
Frame rate                     : 23.976 FPS
Encoded date                   : 2015-02-28 00:31:12 UTC
Tagged date                    : 2015-02-28 00:31:12 UTC
Writing library                : Apple QuickTime
Video
ID                             : 1
Format                         : AVC
Format/Info                    : Advanced Video Codec
Format profile                 : Main@L4
Format settings                : 2 Ref Frames
Format settings, CABAC         : No
Format settings, Reference fra : 2 frames
Format settings, Slice count   : 4 slices per frame
Codec ID                       : avc1
Codec ID/Info                  : Advanced Video Coding
Duration                       : 24 min 56 s
Source duration                : 24 min 56 s
Bit rate                       : 10.0 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
Standard                       : NTSC
Color space                    : YUV
Chroma subsampling             : 4:2:0
Bit depth                      : 8 bits
Scan type                      : Progressive
Bits/(Pixel*Frame)             : 0.202
Stream size                    : 1.75 GiB (99%)
Source stream size             : 1.75 GiB (99%)
Language                       : English
Encoded date                   : 2015-02-28 00:31:12 UTC
Tagged date                    : 2015-02-28 00:31:12 UTC
Color range                    : Limited
mdhd_Duration                  : 1496870
Codec configuration box        : avcC
Audio
ID                             : 2
Format                         : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                       : mp4a-40-2
Duration                       : 24 min 56 s
Bit rate mode                  : Variable
Bit rate                       : 128 kb/s
Maximum bit rate               : 135 kb/s
Channel(s)                     : 2 channels
Channel layout                 : L R
Sampling rate                  : 44.1 kHz
Frame rate                     : 43.066 FPS (1024 SPF)
Compression mode               : Lossy
Stream size                    : 22.8 MiB (1%)
Language                       : English
Encoded date                   : 2015-02-28 00:31:12 UTC
Tagged date                    : 2015-02-28 00:31:12 UTC
Other #1
ID                             : 3
Type                           : Object description
Format                         : System Core
Codec ID                       : mp4s-02
Duration                       : 24 min 56 s
Language                       : English
Encoded date                   : 2015-02-28 00:31:12 UTC
Tagged date                    : 2015-02-28 00:31:12 UTC
mdhd_Duration                  : 1000
Other #2
ID                             : 4
Type                           : Scene description
Format                         : System Core
Codec ID                       : mp4s-02
Duration                       : 24 min 56 s
Language                       : English
Encoded date                   : 2015-02-28 00:31:12 UTC
Tagged date                    : 2015-02-28 00:31:12 UTC
mdhd_Duration                  : 1000


____________________________________________________________

Ab-av1

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  
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"  
____________________________________________________________

Tools

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

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.
7. Boldrin, M. 2008. Against Intellectual Monopoly.