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Support lossless mode! #151

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ycho opened this issue Mar 22, 2018 · 9 comments
Open

Support lossless mode! #151

ycho opened this issue Mar 22, 2018 · 9 comments
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AVIF Image Format specific issues enhancement low priority

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@ycho
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ycho commented Mar 22, 2018

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@tdaede tdaede mentioned this issue Jul 26, 2018
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@ycho
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ycho commented Aug 8, 2018

Won't do this.

@ycho ycho closed this as completed Aug 8, 2018
@tdaede tdaede reopened this Feb 12, 2019
@tdaede
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tdaede commented Feb 12, 2019

Someone had an interesting use case of encoding MAME files, e.g. og.kervella.org/pt.7z

This is low priority but no reason not to implement it.

@ycho
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ycho commented Feb 12, 2019

Sure, rav1e always can encode losslessly. I believe AV1 do that with only using 4x4 DCTs as transform, correct?

@tdaede
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tdaede commented Feb 12, 2019

There's a special 4x4 transform that we currently don't have. That's the main thing missing.

@joedrago joedrago mentioned this issue Oct 30, 2019
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@cryptomilk
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I've implemented support for importing and exporting AVIF images in darktable using libavif. I would be interested to have lossless support using rav1e.

https://blog.cryptomilk.org/2019/11/26/avif-image-support-for-darktable/

@cryptomilk
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We have added support for importing and exporting AVIF files in darktable which will be released with version 3.0.1. It would be great to have this fixed in rav1e soon.

@rzumer rzumer added the AVIF Image Format specific issues label Jan 28, 2020
@rzumer rzumer mentioned this issue Jan 28, 2020
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@joedrago joedrago mentioned this issue Apr 19, 2020
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@1480c1 1480c1 mentioned this issue Jul 8, 2020
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@est31 est31 mentioned this issue Dec 9, 2020
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@eclipseo
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Any chance of this issue seeing some love?

@joedrago joedrago mentioned this issue May 12, 2021
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@CartoonFan
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CartoonFan commented Sep 25, 2022 •
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I'd like to voice my support for this feature as well ❤️ 🙏

EDIT: I also realized that this issue is relevant to #2759, since aomenc can do lossless already.

@wantehchang wantehchang mentioned this issue May 4, 2023
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@CartoonFan
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CartoonFan commented Jan 8, 2024 •
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Just now seeing the recent commit here. Has there been any progress on lossless encoding? 👀

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@cryptomilk @tdaede @rzumer @ycho @CartoonFan @eclipseo