https://bugs.kde.org/show_bug.cgi?id=422732
Bug ID: 422732
Summary: AVIF image support in khtml
Product: frameworks-khtml
Version: unspecified
Platform: Other
OS: Other
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: general
Assignee: martin.sandsm...@kde.org
Reporter: dnovome...@gmail.com
CC: kdelibs-b...@kde.org
Target Milestone: ---
Hello,
I am author of github.com/novomesk/qt-avif-image-plugin
AVIF is a new image format based on AV1 compression. Firefox has support for
AVIF (but disabled by default), Google is working to add support into Chrome.
Even before Firefox, Konqueror was able to display AVIF in websites after
following trivial patch in khtml:
www.reddit.com/r/AV1/comments/faayy9/avif_image_browser_test/
I propose following changes in src/imload/decoders/qimageioloader.cpp:
1)
In bool isSupportedFormat(QString format)
Check if AVIF is listed in QImageWriter::supportedImageFormats()
and mark AVIF as supported (return true).
2)
In bool imageFormat(QImage &image, ImageFormat &format)
in default switch case - instead assuming "unsupported formats", what about
converting them to supported?
if ( image.hasAlphaChannel() ) {
image = image.convertToFormat( QImage::Format_ARGB32 );
format.type = ImageFormat::Image_ARGB_32_DontPremult;
}
else {
image = image.convertToFormat( QImage::Format_RGB32 );
format.type = ImageFormat::Image_RGB_32;
}
AVIF test files here:
github.com/AOMediaCodec/av1-avif/tree/master/testFiles
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