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Encoding
Ab-av1
sample-encode -i "c:\SSIS-181\[email protected]" --pix-format yuv420p10le --svt fast-decode=1 --svt tune=0 --preset 5 --min-samples 20 --crf 25
VMAF 95.78 predicted video stream size 1.45 GiB (22%) taking 4 hours
Handbrake 1.8.2 (2024081000)
Video.svt-av1 10 bit fast decode Preset 5 crf 25
Audio.aac pastrough
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File
Video: AV01 1920x1080 29.97fps [V: av1 main, yuv420p10le, 1920x1080 [default]]
Audio: AAC 48000Hz stereo [A: Stereo aac passtrough (aac lc, 48000 Hz, stereo) [default]]
Subtitle: UTF-8 [S: Afrikaans [afr] (subrip) [default]]
Subtitle: UTF-8 [S: Amharic [amh] (subrip) [default]]
Subtitle: UTF-8 [S: Arabic [ara] (subrip) [default]]
Subtitle: UTF-8 [S: Azerbaijani [aze] (subrip) [default]]
Subtitle: UTF-8 [S: Belarusian [bel] (subrip) [default]]
Subtitle: UTF-8 [S: Bulgarian [bul] (subrip) [default]]
Subtitle: UTF-8 [S: Bengali [ben] (subrip) [default]]
Subtitle: UTF-8 [S: Bosnian [bos] (subrip) [default]]
Subtitle: UTF-8 [S: Catalan [cat] (subrip) [default]]
Subtitle: UTF-8 [S: subrip [default]]
Subtitle: UTF-8 [S: Corsican [cos] (subrip) [default]]
Subtitle: UTF-8 [S: Czech [cze] (subrip) [default]]
Subtitle: UTF-8 [S: German [ger] (subrip) [default]]
Subtitle: UTF-8 [S: Greek [gre] (subrip) [default]]
Subtitle: UTF-8 [S: English [eng] (subrip) [default]]
Subtitle: UTF-8 [S: Spanish [spa] (subrip) [default]]
Subtitle: UTF-8 [S: Estonian [est] (subrip) [default]]
Subtitle: UTF-8 [S: Basque [baq] (subrip) [default]]
Subtitle: UTF-8 [S: French [fre] (subrip) [default]]
Subtitle: UTF-8 [S: Irish [gle] (subrip) [default]]
Subtitle: UTF-8 [S: Gujarati [guj] (subrip) [default]]
Subtitle: UTF-8 [S: Hindi [hin] (subrip) [default]]
Subtitle: UTF-8 [S: Croatian [hrv] (subrip) [default]]
Subtitle: UTF-8 [S: Hungarian [hun] (subrip) [default]]
Subtitle: UTF-8 [S: Armenian [arm] (subrip) [default]]
Subtitle: UTF-8 [S: Indonesian [ind] (subrip) [default]]
Subtitle: UTF-8 [S: Italian [ita] (subrip) [default]]
Subtitle: UTF-8 [S: Japanese [jpn] (subrip) [default]]
Subtitle: UTF-8 [S: Khmer [khm] (subrip) [default]]
Subtitle: UTF-8 [S: Korean [kor] (subrip) [default]]
Subtitle: UTF-8 [S: Malay [may] (subrip) [default]]
Subtitle: UTF-8 [S: Dutch [dut] (subrip) [default]]
Subtitle: UTF-8 [S: Nyanja [nya] (subrip) [default]]
Subtitle: UTF-8 [S: Breton [bre] (subrip) [default]]
Subtitle: UTF-8 [S: Russian [rus] (subrip) [default]]
Subtitle: UTF-8 [S: Slovak [slo] (subrip) [default]]
Subtitle: UTF-8 [S: Albanian [alb] (subrip) [default]]
Subtitle: UTF-8 [S: Serbian [srp] (subrip) [default]]
Subtitle: UTF-8 [S: Thai [tha] (subrip) [default]]
Subtitle: UTF-8 [S: Tagalog [tgl] (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 : 9682003944100775315377364857052781591 (0x748AFA654C61BF7700F63C7A1C4DC17)
Complete name : SSIS-181.Yua.Mikami.21.09.23.xxx.1080p.av1.vmaf95-Rosy.mkv
Format : Matroska
Format version : Version 4
File size : 1.54 GiB
Duration : 2 h 31 min
Overall bit rate : 1 463 kb/s
Frame rate : 29.970 FPS
Movie name : SSIS-181.Yua.Mikami.21.09.23.xxx.1080p.av1.vmaf95-Rosy
Encoded date : 2024-11-27 17:24:42 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 : 2 h 31 min
Bit rate : 1 266 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 0)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.020
Stream size : 1.34 GiB (86%)
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 : 2 h 31 min
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Delay relative to video : -42 ms
Stream size : 207 MiB (13%)
Title : Stereo aac passtrough
Default : Yes
Forced : No
____________________________________________________________
Source
[email protected]
Video: MPEG4 Video (H264) 1920x1080 29.97fps 5984kbps [V: h264 main L4.0, yuv420p, 1920x1080, 5984 kb/s]
Audio: AAC 48000Hz stereo 192kbps [A: aac lc, 48000 Hz, stereo, 192 kb/s]
General
Complete name : SSIS-181\[email protected]
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 6.53 GiB
Duration : 2 h 31 min
Overall bit rate mode : Variable
Overall bit rate : 6 187 kb/s
Frame rate : 29.970 FPS
Writing application : Lavf58.29.100
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2 h 31 min
Bit rate : 6 000 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.097
Stream size : 6.31 GiB (97%)
Writing library : x264 core 161 r3048 b86ae3c
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=18 / lookahead_threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=abr / mbtree=1 / bitrate=6000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 2 h 31 min
Bit rate mode : Variable
Bit rate : 192 kb/s
Maximum bit rate : 204 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 207 MiB (3%)
Default : Yes
Alternate group : 1
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Tools
Ab-av1
FFBitrateViewer
FFmpeg
FFmetrics
Freefilesync
Handbrake
Jackett
Mediainfo
Mkvtoolknix
Qbittorent
Scenerulez
Shutterencoder
VVV-virtualvolumeview
Xnconvert
Xnview mp
===================== AV1 guide v14 ========================
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"
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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), or crf 20-25
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.
Whisperai large-v3 2024 (prompts)
!pip install git+https://github.com/openai/whisper.git
!sudo apt update && sudo apt install ffmpeg
!whisper "audio.aac" --model large-v3 --language Japanese --task translate
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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.
7. Boldrin, M. 2008. Against Intellectual Monopoly.
