BUG: 495686
IMG_20241019_195232.heic stopped decoding recently because
buffer.contains("Xiaomi") is almost all the time false
(only start of the file is stored now),
except sequential devices (full file is stored).
The start table is stored as file offsets. We subtract the
header+table size to get an index into the remaining data.
If the file offset is smaller than that, the subtract wraps
and the later start+length check can wrap too.
Drop the file instead of walking off the buffer.
- ORA/KRA: merged in a single plugin (KRA)
- ORA: removed standalone plugin
- KRA: use of logging category
- KRA: add metadata support by processing the embedded `documentinfo.xml`
- Improved signature lookup (see MR !17) and added test case
When 1st parsing ends with invalid EXIF payload error,
we try 2nd time again while ignoring the EXIF metadata.
Dropped support for legacy 0.x libavif versions,
libavif 1.0.0+ is now required for the AVIF support.
libheif retains the heif_reader pointer after
heif_context_read_from_reader returns. The callback table was scoped
to the non-sequential branch and could be destroyed before
tiled image decoding used it from worker threads.
Give the callback table static storage duration.
BUG: 523105
New option `KIMAGEFORMATS_HEIC_TEST` for testing images with
HEVC codec only.
Existing option `KIMAGEFORMATS_HEIF_TEST` is used for testing other
possible (mostly quite rare) codecs that might be used by HEIF
images - uncompressed, deflate, zlib, brotli, jpeg.
Following compromises were chosen to ensure that saved AVCI
is decodable using OpenH264 decoder:
8-bit only, YUV420 subsampling, lossy compression,
large images encoded via image grid.
We were errorneously returning true here, as we do not have any more
images to jump to. If we only have one image, return false.
This avoids the avif handler getting stuck in a loop with only single images.
BUG: 521200
FIXED-IN: 6.28
Daniel Novomeský
Aljo Joby
Nicolas Fella
Mirco Miranda
Mirco MirandaandMirco Miranda
Kyle Alexander BuanandDaniel Novomeský
Akseli Lahtinen
Laurent Montel