# Sakura Quest
---
[![Cover][cover]](https://danbooru.donmai.us/posts/2626421)
## Series
`Sav1or` | Episodes | ![MyAnimeList][mal-logo] MyAnimeList | ![TVDB][tvdb-logo] TVDB | ![Nyaa][nyaa-logo] Source
--- | --- | --- | --- | ---
**Season 1** | 25 *(S01E01-S01E25)* | [**Sakura Quest**](https://myanimelist.net/anime/34494 "Sakura Quest") | [**Sakura Quest**](https://www.thetvdb.com/series/sakura-quest/seasons/official/1 "Sakura Quest") | [Scully_][source-bdmv], [Cleo][source-cleo], [Rye][source-rye], [TheFantastics][source-fr], [ScarletTeam][source-ar], [AnimWorld][source-fa], [CrazySoL][source-vi]
---
## Release
An complete Dual Audio release encoded in AV1 and OPUS for optimum size and quality. Files are named to support media servers like Plex using TVDB metadata.
`Sav1or` | Codec | Quality | Language | Notes
--- | --- | --- | --- | ---
**Video** | AV1 | 1080p 10-bit || Rescale, Normal-Boost, SWAN
**Audio** | OPUS | Stereo (2.0) 96K, Stereo (2.0) 64K | Japanese, English | Japanese Commentary 64K
**Subtitle** | ASS | *high* | Arabic, English, French, Persian, Vietnamese | Signs & Songs, Dialogue
**Chapter** || *yes*
**Encoding Details**:
We rescaled the JPBD via VapourSynth using ArtCNN. Episodes 1-12 were encoded using our Normal-Boost encoding system based on the principles of normal distribution to improve poorly encoded scenes and improve efficiency. Episodes 13-25 were encoded using our brand new system for determining CRF values per scene for a given target SSIMULACRA2 score *before the video is even encoded*. We'll refer to this system as SWAN for the time being. The CRF values were chosen from a range of 12 to 60 and Presets from -1 to 4 so the values in the Av1an command below are an approximation at best. As SWAN is a different approach, it's ripe for further improvements and optimizations using similar techniques from our experience developing Normal-Boost and Av1an Bypass. One such improvement yet implemented would be a refinement pass to fix outliers via Av1an Bypass.
SVT-AV1-Psy 2.2.1-B with Av1an (`--photon-noise 2`)
```
--preset 4 --crf 28 --aq-mode 2 --tune 2 --keyint 0 --scd 0 --enable-tf 0 --enable-qm 1 --qm-min 0 --qm-max 15 variance-boost-strength 2 --variance-octile 6 --sharpness 2 --qp-scale-compress-strength 3 --noise-norm-strength 0
```
> This project is a production with the goal of the smallest video size with significant subjective compromises to image quality. This is not the hallmark of AV1, but close enough. This release should only contain changes to the video stream and audio tracks. The subtitle and attachment tracks are usually copied from the noted sources. Timings are not adjusted except in cases of extreme delay as a result of mixing sources. - `Sav1or`
### [**Comparisons**](https://slow.pics/c/8LEeLEUL "S01E13")
The header above links to the comparison between the rescaled [JPBD][source-bdmv], our AV1 SWAN encode, and HEVC from [Cleo][source-cleo]. Below are a couple of the comparisons between [Cleo][source-cleo] and this release. Typically, we try to compare against a release of similar size and/or quality but that was not possible this time as the nearest HEVC release strayed, in our opinion, too far from the original source without the benefit of size-efficiency.
[HEVC][source-cleo] | AV1
:-: | :-:
[](https://i.slow.pics/2OenvxKw.webp) | [](https://i.slow.pics/UjqbhOIp.webp)
[](https://i.slow.pics/EymcGaS3.webp) | [](https://i.slow.pics/CRyKSliI.webp)
![AV1 Logo][av1-logo]
### Source
Thanks to the following sources:
* ![Nyaa][nyaa-logo] [Scully_][source-bdmv]: Video, Audio
* ![Nyaa][nyaa-logo] [Cleo][source-cleo] - EN Audio
* ![Nyaa][nyaa-logo] [Rye][source-rye] - EN Subtitle, Chapter
* ![Nyaa][nyaa-logo] [TheFantastics][source-fr] - FR Subtitle
* [ScarletTeam][source-ar] - AR Subtitle
* [AnimWorld][source-fa] - FA Subtitle
* [CrazySoL][source-vi] - VI Subtitle
### [**Media Info**](https://rentry.co/9uw72a2g "S01E17 Media Info")
[mal-logo]: https://i.imgur.com/ZCtSawZ.png "My Anime List"
[tvdb-logo]: https://i.imgur.com/dDhSn59.jpeg "The TVDB"
[nyaa-logo]: https://i.imgur.com/7o97aB0.png "Nyaa"
[av1-logo]: https://aomedia.org/assets/images/home-av1-500x200.png
[cover]: https://cdn.donmai.us/original/b0/bd/__koharu_yoshino_shinomiya_shiori_oribe_ririko_kouzuki_sanae_midorikawa_maki_and_12_more_sakura_quest__b0bdc0df1900b23e3cc22127d2c099fc.jpg "Sakura Quest"
[source-bdmv]: https://nyaa.si/view/1271105 "[BDMV] Sakura Quest S01 1080p JPN Blu-ray AVC LPCM 2.0"
[source-rye]: https://nyaa.si/view/1639236 "[Rye] Sakura Quest Season 1 (BD 1080p HEVC x265 10-bit FLAC) [Dual-Audio]"
[source-vi]: https://subtitlist.com/subs/sakura-quest-season-1/vietnamese/10017348 "[Crazy-SoL] Sakura Quest Full"
[source-fr]: https://nyaa.si/view/1165228 "[TheFantastics] Sakura Quest - VOSTFR (BD x264 1080p FLAC)"
[source-ar]: https://subtitlist.com/subs/sakura-quest-season-1/arabic/1838513 "[ScarletTeam] Sakura Quest (01-25) [BD 1080p][VCB-Studio]"
[source-fa]: https://subtitlist.com/subs/sakura-quest-season-1/farsi_persian/2243324 "[AnimWorld.Net] Sakura Quest (1-25)"
[source-cleo]: https://nyaa.si/view/1071154 "[Cleo] Sakura Quest [Dual Audio 10bit BD1080p][HEVC-x265]"
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