Refs #3170 (the Color Control part).
Some files have no project-level effect definition list (EfdG); it was seen in
17 projects, all from inside After Effects-made Motion Graphics templates. In
those, one instance per effect type keeps the full parameter definitions
(parT) and every other instance of the type has an empty parT. The others
were reported "without readable parameter definitions" and dropped (129
Color Controls of one template). The definition index now falls back to the
parT of the first instance of the same match name that has its own
(DefinitionSource::OtherInstance). Values still come from each instance's own
records; a value record that borrowed definitions do not name is reported
instead of vanishing.
The "Color ... holds an unreadable value" report came from 0.21.1, which read
only written records (tdsb 1). Reading default-state records (tdsb 3, #3126)
probably fixes it, but that is not confirmed for Color Control; a synthetic
test now pins a default-state colour record.
* AEP import: read image sequences without a filename prefix and with Force alphabetical order (#3174)
After Effects leaves out an empty filename prefix, so only one Utf8 (the
suffix, such as `.png`) follows the alias. The single part is now placed by
the first file name stored in `opti`: a name starting with it has it as the
prefix, one ending with it as the suffix; without that evidence a part
starting with `.` is the suffix and anything else is not read.
A sequence imported with Force alphabetical order stores its files in
`LIST StVc` (`StVS` with the count as a little-endian u32, then one Utf8 per
file name) instead of prefix and suffix; that list now replaces the
numbering. A list with a name that is not a plain file name (a separator, a
colon, `.` or `..`) is not read, since the names are joined to the folder.
A folder alias whose naming still cannot be read is reported as an import
loss instead of silently linking the folder. docs/aep-format.md describes
the empty prefix and StVc/StVS.
* AEP import: a listed sequence file name with a control character such as NUL is not read (#3174)
A NUL or another control character in a Force alphabetical order file name
now makes the whole list unreadable, like a separator or a dot directory, so
the import reports the naming instead of linking files that cannot exist.
* AEP import: a sequence file list without a readable count is not read (#3174)
After Effects writes the StVS count before the names. A StVc list without
StVS, or with one shorter than its u32, is now reported as unreadable naming
instead of taking every listed name.
* Doc comments for the functions this PR touches
* AEP import: map the Cryptomatte plug-in to EffectCraft's Cryptomatte
The importer reported every instance of the free Cryptomatte plug-in
(match name `Cryptomatte`) as a lost effect. It now becomes
`ec.3d.cryptomatte`:
- CryptomatteData decodes the plug-in's Settings data (its own
little-endian layout, documented in docs/aep-format.md 3.7): the
Cryptomatte layer name and the selection text, both carried verbatim.
- Output maps to Display / Matte Only (Colors -> Colors, Matted RGBA ->
Matte, Matte Only -> Matte Only). Matted Colors, Selection Mode when on,
keys or expressions and anything else stored are reported, and
unreadable data is reported as damaged.
- EffectCraft's Cryptomatte gains a Layer Name text parameter. A layer the
footage has under exactly that name wins; otherwise the Layer popup
decides as before. The CPU, GPU and pick paths share one resolver
(AuxChannels::resolve_crypto_layer_named). Without it, plug-in layer
names such as Crypto_Material would silently fall back to the first
layer.
On a real production project this takes the effect losses from 132 to 44.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: check Cryptomatte against an After Effects 2026 sample of our own
A sample made in After Effects 2026 (plug-in 2.6.6: a fresh effect,
Selection Mode on, each Output item, with read-backs and renders)
corrected three points of the mapping:
- Selection Mode on was dropped silently: After Effects writes it as a
default-state record (tdsb 3) holding 1, which the general reader does
not take. The Cryptomatte step reads that record itself and reports it.
- No Output record is now the plug-in's default Colors, also for an
instance that borrows the project's definition (every instance after
the first), which was reported as having no reliable default and fell
back to EffectCraft's Preview. Keyed or unreadable Output values fall
back to Colors too, still reported.
- Matted Colors imports as Display Matte (the same matte over the layer's
own colours) instead of Preview, still reported as an approximation.
docs/aep-format.md 3.7 gets the sampled Output default, the tdsb 3
Selection Mode record and the real fresh Settings data (an empty text of
length 1 and its MurmurHash3, twice, not cry1 and zeros); docs/aep-import.md
the render comparison with After Effects (Matted RGBA matches; Matte Only
differs in alpha; Colors with no layer chosen shows another layer).
Tests: the exact fresh Settings bytes, tdsb 3 Selection Mode, borrowed
definitions, and an opt-in test against the sample once it is in the
corpus (aep/cryptomatte.aep, ignored until the corpus pin includes it).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: write Cryptomatte's popup items in the test as After Effects does
The injected Cryptomatte definition wrote `pdnm` and `fnam` as `LIST`
chunks. After Effects writes them as plain chunks whose body is chunks
(`NESTED_IDS`), and the reader only looks there, so the tests never read
Output's item names: they passed through the fallback for a definition
with four items and no `pdnm`, which uses the plug-in's own list.
The harness now writes both as After Effects does. New tests check that
the injected definition reads back with its items and instance name,
that Output is mapped by the item the stored index names (items in
another order, case, an unknown item), and that the fallback without a
`pdnm` still works. With the old `LIST` form, or with the mapping
ignoring the items, the new tests fail.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: check Cryptomatte's layer and selection against presets of our own
The After Effects 2026 sample 1400 now has two preset compositions that choose a layer and
pick one object (box_red on CryptoObject) or one material (mat_paint on CryptoMaterial).
CryptomatteData reads both as they are; the picked tokens are the EXR manifest's hashes,
which EffectCraft's selection grammar reads the same as the names.
- The u32 at 108 is MurmurHash3 of the selection text with its NUL (three texts).
- A unit test pins the 127-byte preset data; the sample test now covers all eight
compositions with their layer and selection.
- Render check: EffectCraft's matte covers exactly the pixels After Effects draws as
selected, edge coverage within 0.0002. docs/aep-format.md 3.7 and docs/aep-import.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Cryptomatte import: report damaged Settings and Selection Mode records
Review follow-ups for #3109:
- CryptomatteData refuses a selection text without its NUL and checks the zero byte
at 112 for an empty text too.
- A Settings record without its data, and a Selection Mode record whose value cannot
be read, are reported as damaged data, not taken as the default.
- Layer Name is the effect's last parameter, so the earlier parameters keep their
indexes and upgraded instances have the same order as new ones.
- A Cryptomatte layer name is matched as given before it is trimmed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Cryptomatte settings: require the selection's NUL to end its declared length
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Cryptomatte: match rank planes by the exact layer name
crypto_rank_planes looked planes up with a case-insensitive whole-name match, so
layers Crypto_A and crypto_a shared planes. The layer prefix now matches
case-sensitively; component letters still match in either case.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Format
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* AEP: the exporter knows Extra::Cryptomatte; rustfmt
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: FredApps <153173854+FredApps@users.noreply.github.com>
* AEP import: the report names the After Effects version of the file (#3115)
svap holds the version of the After Effects that wrote a project, head
bytes 4 to 7 the version the file is written for; Save a Copy As 25.x /
24.x of After Effects 2026 keeps svap and writes the older version into
head. AeVersion decodes the packed word (26.2.1x2), AepFile gains
file_version, saved_by_version and head_revision, and ImportReport gains
aeVersion (fileVersion, savedBy, tested; "unknown" when the file does not
say). A version outside 24 to 26 is imported as usual and gets a
limitation line, not a loss.
The 12 corpus families saved as 2026, 25.x and 24.x copies import to the
same project and report; docs/aep-format.md lists what the copies change
in the container. The fixture tests are ignored until the corpus holds
the files.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: doc comments on the version tests and helpers
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import docs: tested is a major-version classification from copies saved by After Effects 2026
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import docs: the importer reports detected losses, not every loss
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* aep tests: compare the imported settings across version copies too
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: map HDR Highlight Compression, Echo, Linear Wipe, Offset and Color Stabilizer
The importer reported these five effects as lost. They now become
EffectCraft's effects of the same name with every parameter After Effects
stores (ranges, defaults and popup items from our own After Effects 2026
project, documented in docs/aep-format.md 3.7):
- ADBE HDR ToneMap -> ec.utility.hdrcompression (Amount)
- ADBE Echo -> ec.time.echo (Echo Time, Number Of Echoes, Starting
Intensity, Decay, Echo Operator by item name)
- ADBE Linear Wipe -> ec.transition.linearwipe
- ADBE Offset -> ec.distort.offset (Blend With Original is a stored 0..1
fraction, a percentage here)
- ADBE Deflicker -> ec.color.colorstabilizer (fresh Stabilize default
Levels, points, Sample Size)
A table row can name the range EffectCraft's effect works in
(ParamMap::limit): Echo values or keys beyond 255 echoes or a Decay of 1
are imported as stored and reported.
Tests build each effect into the committed synthetic.aep (fx_inject.rs,
which also checks its pard layout reads back). On the sample project the
effect losses go from 75 to 3 (the out-of-range Echo values).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: doc comments on the quick-win test helpers and tests
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* AEP import: Echo keyframe regression for the range loss
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
A record in another tdsb state is reported as damaged data again, as before the
default-state change. The synthetic test checks Levels' recorded popup directly.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
After Effects records some effect parameters as value records in the
default state (tdsb 3) that still hold the value it uses. A survey of 839
corpus and sample files finds 25 such effect records, all in Lumetri
Color (its hidden controls) and Cryptomatte (Selection Mode on); every one
differs from its pard default and reads back in After Effects as recorded.
No effect record in the default state holds a value that does not count.
The general reader now takes them: EffectParam::recorded_value (the same
name, signature and body as in the Lumetri import) reads a record whatever
its state, value() and is_default() use it, and the importer's mapped
parameters read it, so such a record imports like a written one instead of
being reported as an unreadable value with the default used.
stored_value keeps to written records.
Layer, camera, light, shape and text properties in the default state all
hold After Effects' defaults or values with no effect on that layer
(the point light cone, a polygon's inner radius, a camera's opacity), so
their readers are unchanged. docs/aep-format.md records both findings.
Closes#3126
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Add After Effects project import with bounded parsing, explicit loss reports, and regression coverage.
Fetch the cleaned external test corpus at commit 97262276f625afdeeb61787e4cbb74b3f17af510 and verify each fixture against the pinned SHA-256 manifest.
Valentin Klein
