CR3 files imported as preview-only with the 1620x1080 PRVW JPEG and no metadata
(no camera, capture time, exposure, lens or GPS): nothing read the container.
- crates/meta/src/cr3.rs: bounded ISO base media box parser for CR3 (Canon uuid
box with CMT1-4 and THMB, tracks with their sample entries, CMP1 coding header
and sample location, XMP uuid box). Every size/offset checked; depth and box
count bounded.
- Metadata: CMT1 (IFD0), CMT2 (Exif) and CMT4 (GPS) merged into one TIFF Exif
block, so CR3 reads like any TIFF-based raw; XMP from its uuid box.
- Preview: the full-size JPEG track (6960x4640 on an EOS R6 Mark III) before
PRVW/THMB; imports report the full image size.
- Tests: synthetic CR3 (boxes, tracks, merged Exif), truncation/corruption sweep,
JPEG track preferred over PRVW with fallback.
Raw (CRX) data is still not decoded; CR3 stays preview-only.
Saving (Cmd+S or auto-write) now merges LightCraft's properties into an
existing sidecar (lightcraft_meta::merge_xmp): owned properties (rating,
label, dc/IPTC/rights fields, lc:*) are replaced or removed, capture time
and GPS only when LightCraft has a value; everything else (crs:,
xmpMM:History, unknown namespaces, packet wrapper) is kept byte for byte.
The result is re-parsed and checked before it is written (temp + fsync +
rename). A sidecar that isn't valid XMP is copied to .xmp.bak-<time>
(never overwriting) before it is replaced; one that can't be read at all
is left alone and the save fails.
Shared stems: when several catalogued files map to one stem sidecar
(IMG.CR3 + IMG.JPG), it belongs to the raw (else the first by name) and
the others write and read <file>.xmp.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
GPX 1.0/1.1 reader in lightcraft-meta (timed track points per segment; interpolation only within a
segment, nearest point within maxGap otherwise). Engine command photo.autoTagTracklog (path or gpx
text, camera time-zone offset, maxGap, replace, dryRun; one undo step) and Photo ▸ Auto-Tag from
Tracklog… with a time-zone prompt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Catalog Meta gets copyright_status (unknown / copyrighted / publicDomain), usage_terms and
copyright_url, read and written as XMP Rights Management fields (xmpRights:Marked, UsageTerms,
WebStatement) on import, sidecars and exports (kept by "copyright only"). photo.setMeta,
copy/paste metadata, metadata presets, a Copyright Status smart-album rule and the Info panel.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
lightcraft-meta gains tags.rs: every tag of IFD0 and the EXIF, GPS and interoperability IFDs
as (group, name, value) rows, named per the public TIFF / EXIF / DNG specifications, with
common values spelled out (exposure as 1/250 s, f/2.8, 35 mm, orientation, metering, flash,
compression…) and blobs summarised. photo.allMetadata adds the XMP fields (sidecar, else the
file's packet). Info ▸ All Metadata… opens a searchable dialog grouped by TIFF / EXIF / GPS /
XMP.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Local corrections stored as crs: structures (MaskGroupBasedCorrections and the older
gradient / circular gradient / paint containers) become our masks: linear and radial
gradients, brushes (dab runs → strokes), Subject / Sky, luminance and depth ranges, with
add / subtract / intersect and invert, and all local sliders. lightcraft-meta's XmpData gains
`values`, a structured view of every property (arrays of structs survive); .lrtemplate Lua
tables convert into the same shape.
Applying a preset adds its masks to the photo's own (once; Amount scales them); sidecar masks
replace them and radial masks are fitted to the photo's aspect. Unsupported components
(colour range, other AI selections) are reported as "Mask: <kind>".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Metadata gains alt text, extended description, sublocation, city, state/province, country:
catalog, photo.setMeta, copy/paste metadata, XMP read/write (Iptc4xmpCore AltText /
ExtDescrAccessibility / Location, photoshop City / State / Country), sidecars and export
(place fields dropped with "remove location").
- Info panel: camera card (camera, lens, size · file size, format badge, focal length,
shutter, aperture, ISO), then title, caption, alt text, extended description, copyright,
creator, file name (rename), file path (reveal), captured (edit), place fields, GPS.
- Text fields keep what is typed across frames and save on focus loss (they were rebound to
the stored value every frame). New pencil icon (drawn in code); dates::display_time.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
RAF header/record parsing, raw IFD (0xf000) with 16-bit, 12-bit LSB and
32-bit-word MSB packings found by black-box analysis of CC0 samples,
X-Trans layout (reversed record, anchored at 0,0), crop, black levels,
WB_GRB levels, metadata and preview from the embedded JPEG. Compressed
RAF reports Unsupported. Colour uses the documented neutral fallback.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Classic + BigTIFF, both byte orders, all field types, SubIFDs and Exif/GPS/
Interop pointer IFDs, strips/tiles layout, maker-note offset-base helpers,
IFD writer; hardened against malformed input (proptests). Placeholder
manifests for lightcraft-meta and lightcraft-raw.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
