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Add support for JPEG XL image format#41058

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Add support for JPEG XL image format#41058
1div0 wants to merge 15 commits intonextcloud:masterfrom
1div0:JPEG XL

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@1div0 1div0 commented Oct 23, 2023

JPEG XL support

This PR is intended for adding support of the JPEG XL image format in the Nextcloud.

solracsf
solracsf reviewed Oct 23, 2023
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apps/dav/lib/Avatars/AvatarNode.php Outdated
ob_start();
if ($this->ext === 'png') {
imagepng($res);
} else if ($this->ext === 'jxl') {
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@solracsf solracsf Oct 23, 2023

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Suggested change
} else if ($this->ext === 'jxl') {
} elseif ($this->ext === 'jxl') {

@miaulalala
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miaulalala commented Oct 23, 2023

Looks like browser support is really not there for jxl: https://caniuse.com/jpegxl

So this would likely lead to broken images for everyone but Safar users if we support it.

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1div0 commented Oct 23, 2023

Thorium supports JPEG XL OOB.

I am waiting for the day when Google will reverse that mistaken decision.

https://bugs.chromium.org/p/chromium/issues/detail?id=1451807

@1div0 1div0 marked this pull request as draft October 25, 2023 10:50
1div0 added 3 commits October 26, 2023 10:45
@1div0
Add support for JPEG XL image format
f5c4c14 
Signed-off-by: Peter Kovář <peter.kovar@reflexion.tv>
@1div0
Changed according to review comment
77bca06 
Signed-off-by: Peter Kovář <peter.kovar@reflexion.tv>
@1div0
Added JPEG XL MIME type
7b99332 
Signed-off-by: Peter Kovář <peter.kovar@reflexion.tv>
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1div0 commented Oct 26, 2023

BTW JPEG XL could be transparently converted to JPEG on the fly in order to save server storage space.

@solracsf solracsf added this to the Nextcloud 28 milestone Oct 27, 2023
@skjnldsv skjnldsv mentioned this pull request Nov 1, 2023
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@1div0
Add JPEG XL to MIME type list
9e0839c 
Signed-off-by: Peter Kovář <peter.kovar@reflexion.tv>
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tcitworld commented Nov 2, 2023

Looks like browser support is really not there for jxl: https://caniuse.com/jpegxl

So this would likely lead to broken images for everyone but Safar users if we support it.

We can just add support for previewing JXL files (all previews are png in the browser) for now, but not support handling it in other places as this PR tries to do. Just like Krita files for instance.

1div0 and others added 2 commits November 2, 2023 17:17
@1div0
Trying to resolve merge conflicts
a243d3b 
Signed-off-by: Peter Kovář <peter.kovar@reflexion.tv>
@1div0
Merge branch 'master' into JPEG XL
05f6ab9
github-advanced-security[bot]
github-advanced-security bot found potential problems Nov 2, 2023
View reviewed changes
apps/dav/lib/Avatars/AvatarNode.php
if ($this->ext === 'png') {
imagepng($res);
} elseif ($this->ext === 'jxl') {
imagejxl($res);

Check failure

Code scanning / Psalm

UndefinedFunction

Function OCA\DAV\Avatars\imagejxl does not exist
apps/theming/lib/ImageManager.php
throw new \Exception('Could not recompress background image as JPEG');
}
} else if (str_contains($detectedMimeType, 'image/jxl')) {
if (!imagejxl($outputImage, $newTmpFile, 90)) {

Check failure

Code scanning / Psalm

UndefinedFunction

Function OCA\Theming\imagejxl does not exist
lib/private/legacy/OC_Image.php
$imageType = IMAGETYPE_JPEG;
break;
case 'image/jxl':
$imageType = IMAGETYPE_JXL;

Check failure

Code scanning / Psalm

UndefinedConstant

Const IMAGETYPE_JXL is not defined
lib/private/legacy/OC_Image.php
imageinterlace($this->resource, (PHP_VERSION_ID >= 80000 ? true : 1));
$retVal = imagejpeg($this->resource, $filePath, $this->getJpegQuality());
break;
case IMAGETYPE_JXL:

Check failure

Code scanning / Psalm

UndefinedConstant

Const IMAGETYPE_JXL is not defined
lib/private/legacy/OC_Image.php
$retVal = imagejpeg($this->resource, $filePath, $this->getJpegQuality());
break;
case IMAGETYPE_JXL:
$retVal = imagejxl($this->resource, $filePath, $this->getJxlQuality());

Check failure

Code scanning / Psalm

UndefinedFunction

Function imagejxl does not exist
lib/private/legacy/OC_Image.php
$retVal = imagejpeg($this->resource, $filePath, $this->getJpegQuality());
break;
case IMAGETYPE_JXL:
$retVal = imagejxl($this->resource, $filePath, $this->getJxlQuality());

Check failure

Code scanning / Psalm

UndefinedMethod

Method OC_Image::getJxlQuality does not exist
lib/private/legacy/OC_Image.php
$res = imagejpeg($this->resource, null, $quality);
break;
case "image/jxl":
$quality = $this->getJxlQuality();

Check failure

Code scanning / Psalm

UndefinedMethod

Method OC_Image::getJxlQuality does not exist
lib/private/legacy/OC_Image.php
break;
case "image/jxl":
$quality = $this->getJxlQuality();
$res = imagejxl($this->resource, null, $quality);

Check failure

Code scanning / Psalm

UndefinedFunction

Function imagejxl does not exist
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1div0 commented Nov 5, 2023

I will check and try to add JPEG XL preview if the browser advertizes image/jxl support ASAP.

@ChristophWurst ChristophWurst added the 2. developing Work in progress label Nov 6, 2023
This was referenced Nov 6, 2023
Merged
Merged
kesselb
kesselb reviewed Nov 12, 2023
View reviewed changes
lib/private/legacy/OC_Image.php
imageinterlace($this->resource, (PHP_VERSION_ID >= 80000 ? true : 1));
$retVal = imagejpeg($this->resource, $filePath, $this->getJpegQuality());
break;
case IMAGETYPE_JXL:
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@kesselb kesselb Nov 12, 2023

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Our OC_Image class is a wrapper for php's gd extension. The constant IMAGETYPE_JXL or the function imagejxl can only exist if the gd library get's support for jxl. libgd -> php-gd -> OC_Image.

Upstream feature request: libgd/libgd#699

@kesselb kesselb removed this from the Nextcloud 28 milestone Nov 12, 2023
@solracsf solracsf added this to the Nextcloud 28 milestone Nov 21, 2023
@blizzz blizzz mentioned this pull request Nov 22, 2023
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5 tasks
@blizzz blizzz modified the milestones: Nextcloud 28, Nextcloud 29 Nov 23, 2023
@kesselb kesselb removed this from the Nextcloud 29 milestone Nov 23, 2023
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kesselb commented Nov 23, 2023

@solracsf Please don't assign a milestone right now. In the current state, the pull request is far from ready.

@1div0 Is there a reason that you rebase this branch every few days without changing anything? This will always trigger a notification for subscribed people and trigger a CI run.

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1div0 commented Nov 23, 2023

I am still working locally on the GD library JPEG XL support. Will commit ASAP.

I apologize for the noise.

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kesselb commented Nov 23, 2023

Thank you for your efforts in moving this topic forward 👍

@susnux susnux added this to the Nextcloud 30 milestone Apr 18, 2024
@skjnldsv skjnldsv removed this from the Nextcloud 30 milestone Aug 14, 2024
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skjnldsv commented Dec 3, 2024

@1div0 any news regarding the GD library JPEG XL support ? :)

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1div0 commented Dec 3, 2024

0 ATM, maybe next year++

@skjnldsv skjnldsv added this to the Nextcloud 32 milestone Jan 30, 2025
@skjnldsv skjnldsv modified the milestones: Nextcloud 32, Nextcloud 33 Sep 28, 2025
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