effectcraft/crates/project/src/lib.rs

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//! The EffectCraft document model.
//!
//! `Project` → items (folders, compositions, footage, solids) → `Comp` → `Layer` → property tree
//! ([`props`]). Compositions sit behind `Arc` so undo snapshots share everything that did not
//! change.
#![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
pub mod build;
pub mod essential;
pub mod props;
pub mod render_queue;
pub mod render_templates;
pub mod styles;
pub mod tracking;
use std::collections::BTreeMap;
use std::sync::Arc;
pub use effectcraft_color::ColorSpace;
use effectcraft_color::{BlendMode, Label};
use effectcraft_time::{FrameRate, Tick};
pub use props::{Expression, FeatherFalloff, GroupKind, MaskMode, MaskMotionBlur, Node, ParamUi, PropGroup, Property, Uid, parse_path};
use serde::{Deserialize, Serialize};
pub use effectcraft_keyframe as keyframe;
pub use effectcraft_keyframe::{Keyframe, Value};
pub const SCHEMA_VERSION: u32 = 1;
/// The EffectCraft version, written into project files as `savedBy`.
pub const APP_VERSION: &str = env!("CARGO_PKG_VERSION");
/// The EffectCraft version that wrote a project file (its `savedBy`), when it says.
pub fn saved_by(text: &str) -> Option<String> {
#[derive(Deserialize)]
struct Meta {
#[serde(rename = "savedBy", default)]
saved_by: Option<String>,
}
serde_json::from_str::<Meta>(text).ok()?.saved_by
}
/// Whether version `a` (`major.minor.patch`, pre-release suffixes ignored) is newer than `b`.
pub fn is_newer_version(a: &str, b: &str) -> bool {
let parts = |v: &str| -> [u64; 3] {
let mut n = v.split(['-', '+']).next().unwrap_or("").split('.').map(|x| x.parse().unwrap_or(0));
[n.next().unwrap_or(0), n.next().unwrap_or(0), n.next().unwrap_or(0)]
};
parts(a) > parts(b)
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct ItemId(pub u64);
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct LayerId(pub u64);
#[derive(Debug, thiserror::Error)]
pub enum ProjectError {
#[error("no item {0:?}")]
NoItem(ItemId),
#[error("item {0:?} is not a composition")]
NotComp(ItemId),
#[error("no layer {0:?}")]
NoLayer(LayerId),
#[error("no property `{0}`")]
NoProperty(String),
#[error("{0}")]
Invalid(String),
}
/// Project bit depth.
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum BitDepth {
#[default]
Bpc8,
Bpc16,
Bpc32,
}
impl BitDepth {
pub fn label(self) -> &'static str {
match self {
BitDepth::Bpc8 => "8 bpc",
BitDepth::Bpc16 => "16 bpc",
BitDepth::Bpc32 => "32 bpc",
}
}
pub fn next(self) -> BitDepth {
match self {
BitDepth::Bpc8 => BitDepth::Bpc16,
BitDepth::Bpc16 => BitDepth::Bpc32,
BitDepth::Bpc32 => BitDepth::Bpc8,
}
}
pub fn is_float(self) -> bool {
self == BitDepth::Bpc32
}
/// Quantisation levels per channel of the integer depths (8 bpc: 255; 16 bpc: 32768, After
/// Effects' "15 + 1" bit range), `None` for 32 bpc float.
pub fn levels(self) -> Option<f32> {
match self {
BitDepth::Bpc8 => Some(255.0),
BitDepth::Bpc16 => Some(32768.0),
BitDepth::Bpc32 => None,
}
}
pub fn bits(self) -> u32 {
match self {
BitDepth::Bpc8 => 8,
BitDepth::Bpc16 => 16,
BitDepth::Bpc32 => 32,
}
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum TimeDisplayStyle {
#[default]
Timecode,
Frames,
/// Feet + Frames, 35 mm film (16 frames per foot).
Feet35,
/// Feet + Frames, 16 mm film (40 frames per foot).
Feet16,
}
impl TimeDisplayStyle {
/// Frames per foot of the Feet + Frames styles.
pub fn frames_per_foot(self) -> Option<i64> {
match self {
TimeDisplayStyle::Feet35 => Some(16),
TimeDisplayStyle::Feet16 => Some(40),
_ => None,
}
}
pub fn id(self) -> &'static str {
match self {
TimeDisplayStyle::Timecode => "timecode",
TimeDisplayStyle::Frames => "frames",
TimeDisplayStyle::Feet35 => "feet35",
TimeDisplayStyle::Feet16 => "feet16",
}
}
pub fn parse(s: &str) -> Option<TimeDisplayStyle> {
let k: String = s.chars().filter(|c| c.is_ascii_alphanumeric()).collect::<String>().to_ascii_lowercase();
match k.as_str() {
"timecode" => Some(TimeDisplayStyle::Timecode),
"frames" => Some(TimeDisplayStyle::Frames),
"feet35" | "feetframes" | "feetandframes" | "feet35mm" | "35mm" | "feetframes35mm" => Some(TimeDisplayStyle::Feet35),
"feet16" | "feet16mm" | "16mm" | "feetframes16mm" => Some(TimeDisplayStyle::Feet16),
_ => None,
}
}
}
/// Project Settings ▸ Color ▸ Color Engine.
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum ColorEngine {
/// Built-in colour management (ICC-style working spaces).
#[default]
Adobe,
/// OCIO managed, with the built-in configuration (ACES working spaces).
Ocio,
}
/// Project Settings ▸ Color ▸ HDR: how over-range (HDR) values reach a standard-dynamic-range
/// display or output.
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum HdrMode {
/// Values above 1.0 clip.
#[default]
Clip,
/// Highlights above 80% are companded (an exponential knee) into the remaining range.
Compand,
/// Extended Reinhard tone mapping of luminance (white at 4.0).
ToneMap,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct ProjectSettings {
pub bit_depth: BitDepth,
/// Linearize Working Space: the working space uses linear light (1.0 gamma) for everything
/// (sources, effects, blending). Needs a working space.
pub linearize: bool,
/// Working Space (colour management). `None` = no colour management.
#[serde(default)]
pub working_space: Option<ColorSpace>,
/// Blend Colors Using 1.0 Gamma: layers blend in linear light (sources and effects stay in
/// the working space's encoding).
#[serde(default)]
pub blend_linear: bool,
pub time_display: TimeDisplayStyle,
/// Frame numbering starts at 0 (or 1).
pub frame_start: i64,
pub audio_sample_rate: u32,
/// Video Rendering and Effects ▸ Use: Mercury GPU Acceleration (`true`, the default; used
/// when a GPU adapter exists) or Mercury Software Only (`false`, the CPU compositor).
#[serde(default = "yes")]
pub gpu_acceleration: bool,
/// The project's comment (Metadata panel).
#[serde(default, skip_serializing_if = "String::is_empty")]
pub comment: String,
/// Color Engine (Adobe-style built-in or OCIO with ACES working spaces).
#[serde(default)]
pub color_engine: ColorEngine,
/// HDR handling for standard-dynamic-range output (display and renders).
#[serde(default)]
pub hdr: HdrMode,
/// The space the top-level comp is output in (renders and the viewer's source). `None` =
/// sRGB; Rec. 2100 PQ / HLG give HDR output.
#[serde(default)]
pub output_space: Option<ColorSpace>,
}
impl Default for ProjectSettings {
fn default() -> Self {
ProjectSettings {
bit_depth: BitDepth::Bpc8,
linearize: false,
working_space: None,
blend_linear: false,
time_display: TimeDisplayStyle::Timecode,
frame_start: 0,
audio_sample_rate: 48_000,
gpu_acceleration: true,
comment: String::new(),
color_engine: ColorEngine::Adobe,
hdr: HdrMode::Clip,
output_space: None,
}
}
}
#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
pub struct Marker {
pub time: Tick,
#[serde(default)]
pub duration: Tick,
#[serde(default)]
pub comment: String,
#[serde(default)]
pub label: Label,
#[serde(default)]
pub chapter: String,
#[serde(default)]
pub url: String,
#[serde(default)]
pub protected: bool,
/// Web link frame target (`_blank`, a frame name…).
#[serde(default, skip_serializing_if = "String::is_empty")]
pub frame_target: String,
/// Flash/video cue point (Event or Navigation) with name and parameters.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub cue_point: Option<CuePoint>,
}
/// A marker's cue point (Composition/Layer Marker dialog ▸ Cue Point).
#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
pub struct CuePoint {
pub name: String,
/// Navigation (true) or Event cue point.
#[serde(default)]
pub navigation: bool,
/// (name, value) parameter pairs.
#[serde(default)]
pub params: Vec<(String, String)>,
}
/// 3D renderer of a composition.
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum Renderer {
#[default]
Classic3D,
Advanced3D,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Comp {
pub width: u32,
pub height: u32,
pub pixel_aspect: f64,
pub frame_rate: FrameRate,
pub duration: Tick,
/// Start timecode/frame shown for time 0.
pub display_start: Tick,
pub background: [f32; 3],
pub work_area: (Tick, Tick),
/// Layer #1 first (top of the stack).
pub layers: Vec<Layer>,
#[serde(default)]
pub markers: Vec<Marker>,
pub shutter_angle: f64,
pub shutter_phase: f64,
/// Samples Per Frame: the minimum motion-blur samples (and the count for 3D layers).
pub motion_blur_samples: u32,
/// Adaptive Sample Limit (Composition Settings ▸ Advanced): the most samples a 2D layer gets
/// when it moves far within the shutter.
#[serde(default = "adaptive_limit_default")]
pub motion_blur_adaptive_limit: u32,
#[serde(default)]
pub renderer: Renderer,
/// Comp switches (timeline toolbar).
#[serde(default)]
pub hide_shy: bool,
#[serde(default = "yes")]
pub enable_motion_blur: bool,
#[serde(default = "yes")]
pub enable_frame_blending: bool,
#[serde(default)]
pub draft_3d: bool,
/// Composition Settings ▸ Advanced ▸ Preserve frame rate when nested or in render queue:
/// nested in another comp, or rendered at another rate, it shows only its own frames.
#[serde(default)]
pub preserve_frame_rate: bool,
/// Composition Settings ▸ Advanced ▸ Preserve resolution when nested: nested in a comp
/// previewed at a lower resolution, it still renders at full size.
#[serde(default)]
pub preserve_resolution: bool,
#[serde(default)]
pub poster_time: Tick,
/// Global Light for layer styles (Layer ▸ Layer Styles ▸ Blending Options).
#[serde(default)]
pub global_light: styles::GlobalLight,
/// Viewer guides (View ▸ Add Guide…), in comp pixels.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub guides: Vec<Guide>,
/// Essential Graphics: the controls this comp exposes to instances and templates.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub essential: Option<essential::EssentialGraphics>,
}
/// A viewer guide line: vertical guides sit at an x position, horizontal ones at a y position.
#[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize)]
pub struct Guide {
pub vertical: bool,
pub position: f64,
}
fn yes() -> bool {
true
}
fn adaptive_limit_default() -> u32 {
128
}
impl Comp {
pub fn new(width: u32, height: u32, frame_rate: FrameRate, duration: Tick) -> Comp {
Comp {
width,
height,
pixel_aspect: 1.0,
frame_rate,
duration,
display_start: Tick::ZERO,
background: [0.0, 0.0, 0.0],
work_area: (Tick::ZERO, duration),
layers: vec![],
markers: vec![],
shutter_angle: 180.0,
shutter_phase: -90.0,
motion_blur_samples: 16,
motion_blur_adaptive_limit: 128,
renderer: Renderer::Classic3D,
hide_shy: false,
enable_motion_blur: true,
enable_frame_blending: true,
draft_3d: false,
preserve_frame_rate: false,
preserve_resolution: false,
poster_time: Tick::ZERO,
guides: vec![],
global_light: styles::GlobalLight::default(),
essential: None,
}
}
/// Whether the composition has a frame at its time `t`: nested, it shows nothing before it
/// starts or after it ends (a precomp layer trimmed or remapped past it).
pub fn covers(&self, t: Tick) -> bool {
t >= Tick::ZERO && t < self.duration
}
/// A new, empty composition with this one's settings (frame rate, pixel aspect, background,
/// motion blur, frame blending and the 3D renderer), as Pre-compose makes.
pub fn nested_like(&self, width: u32, height: u32, duration: Tick) -> Comp {
Comp {
pixel_aspect: self.pixel_aspect,
background: self.background,
shutter_angle: self.shutter_angle,
shutter_phase: self.shutter_phase,
motion_blur_samples: self.motion_blur_samples,
motion_blur_adaptive_limit: self.motion_blur_adaptive_limit,
renderer: self.renderer,
enable_motion_blur: self.enable_motion_blur,
enable_frame_blending: self.enable_frame_blending,
preserve_frame_rate: self.preserve_frame_rate,
preserve_resolution: self.preserve_resolution,
..Comp::new(width, height, self.frame_rate, duration)
}
}
pub fn layer(&self, id: LayerId) -> Option<&Layer> {
self.layers.iter().find(|l| l.id == id)
}
pub fn layer_mut(&mut self, id: LayerId) -> Option<&mut Layer> {
self.layers.iter_mut().find(|l| l.id == id)
}
/// 1-based layer number (#) of a layer.
pub fn index_of(&self, id: LayerId) -> Option<usize> {
self.layers.iter().position(|l| l.id == id).map(|i| i + 1)
}
pub fn layer_by_name(&self, name: &str) -> Option<&Layer> {
self.layers.iter().find(|l| l.name == name)
}
pub fn frame_duration(&self) -> Tick {
self.frame_rate.frame_duration()
}
/// Any 3D layer present (camera/lights or a 3D switch).
pub fn has_3d(&self) -> bool {
self.layers.iter().any(|l| l.switches.three_d || matches!(l.source, LayerSource::Camera | LayerSource::Light { .. }))
}
/// The active camera at `t`: the topmost enabled camera layer active at that time.
pub fn active_camera(&self, t: Tick) -> Option<&Layer> {
self.layers.iter().find(|l| matches!(l.source, LayerSource::Camera) && l.switches.video && l.is_active_at(t))
}
/// Unique layer name with a numeric suffix (`Shape Layer 2`).
pub fn unique_layer_name(&self, base: &str) -> String {
if !self.layers.iter().any(|l| l.name == base) {
return base.to_string();
}
let stem = base.trim_end_matches(|c: char| c.is_ascii_digit()).trim_end();
(2..).map(|i| format!("{stem} {i}")).find(|n| !self.layers.iter().any(|l| &l.name == n)).unwrap_or_default()
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum LightKind {
Parallel,
Spot,
#[default]
Point,
Ambient,
Environment,
}
impl LightKind {
pub const ALL: [LightKind; 5] = [LightKind::Parallel, LightKind::Spot, LightKind::Point, LightKind::Ambient, LightKind::Environment];
pub fn label(self) -> &'static str {
match self {
LightKind::Parallel => "Parallel",
LightKind::Spot => "Spot",
LightKind::Point => "Point",
LightKind::Ambient => "Ambient",
LightKind::Environment => "Environment",
}
}
}
/// A parametric 3D primitive (Layer ▸ New ▸ Cube/Sphere/Plane/Torus/Cone/Cylinder).
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum PrimitiveKind {
#[default]
Cube,
Sphere,
Plane,
Torus,
Cone,
Cylinder,
}
impl PrimitiveKind {
pub const ALL: [PrimitiveKind; 6] =
[PrimitiveKind::Cube, PrimitiveKind::Sphere, PrimitiveKind::Plane, PrimitiveKind::Torus, PrimitiveKind::Cone, PrimitiveKind::Cylinder];
pub fn label(self) -> &'static str {
match self {
PrimitiveKind::Cube => "Cube",
PrimitiveKind::Sphere => "Sphere",
PrimitiveKind::Plane => "Plane",
PrimitiveKind::Torus => "Torus",
PrimitiveKind::Cone => "Cone",
PrimitiveKind::Cylinder => "Cylinder",
}
}
pub fn parse(s: &str) -> Option<PrimitiveKind> {
PrimitiveKind::ALL.into_iter().find(|k| k.label().eq_ignore_ascii_case(s.trim()))
}
}
/// What a layer shows.
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum LayerSource {
/// Footage item (video, still, sequence, audio).
Footage {
item: ItemId,
},
/// Nested composition (precomp).
Comp {
item: ItemId,
},
/// Solid item (solids also back adjustment layers).
Solid {
item: ItemId,
},
Text,
Shape,
Null,
Camera,
Light {
kind: LightKind,
},
/// An imported 3D model (a footage item of kind [`FootageKind::Model`]; Advanced 3D).
Model {
item: ItemId,
},
/// A parametric 3D primitive (Advanced 3D).
Primitive {
kind: PrimitiveKind,
},
}
impl LayerSource {
pub fn item(&self) -> Option<ItemId> {
match self {
LayerSource::Footage { item } | LayerSource::Comp { item } | LayerSource::Solid { item } | LayerSource::Model { item } => Some(*item),
_ => None,
}
}
pub fn type_name(&self) -> &'static str {
match self {
LayerSource::Footage { .. } => "Footage",
LayerSource::Comp { .. } => "Composition",
LayerSource::Solid { .. } => "Solid",
LayerSource::Text => "Text",
LayerSource::Shape => "Shape",
LayerSource::Null => "Null",
LayerSource::Camera => "Camera",
LayerSource::Light { .. } => "Light",
LayerSource::Model { .. } => "3D Model",
LayerSource::Primitive { .. } => "3D Primitive",
}
}
/// Layers with pixels (cameras, lights and nulls have none).
pub fn is_av(&self) -> bool {
!matches!(self, LayerSource::Camera | LayerSource::Light { .. } | LayerSource::Null)
}
/// A 3D model or primitive layer (meshes; drawn by the Advanced 3D renderer).
pub fn is_model(&self) -> bool {
matches!(self, LayerSource::Model { .. } | LayerSource::Primitive { .. })
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum Quality {
#[default]
Best,
Draft,
Wireframe,
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum Sampling {
#[default]
Bilinear,
Bicubic,
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum FrameBlend {
#[default]
Off,
FrameMix,
PixelMotion,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Switches {
pub video: bool,
pub audio: bool,
pub solo: bool,
pub locked: bool,
pub shy: bool,
/// Collapse transformations (precomps) / continuously rasterize (vector layers).
pub collapse: bool,
pub quality: Quality,
pub sampling: Sampling,
pub effects: bool,
pub frame_blend: FrameBlend,
pub motion_blur: bool,
pub adjustment: bool,
pub three_d: bool,
pub guide: bool,
}
impl Default for Switches {
fn default() -> Self {
Switches {
video: true,
audio: true,
solo: false,
locked: false,
shy: false,
collapse: false,
quality: Quality::Best,
sampling: Sampling::Bilinear,
effects: true,
frame_blend: FrameBlend::Off,
motion_blur: false,
adjustment: false,
three_d: false,
guide: false,
}
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum MatteKind {
#[default]
Alpha,
AlphaInverted,
Luma,
LumaInverted,
}
impl MatteKind {
pub const ALL: [MatteKind; 4] = [MatteKind::Alpha, MatteKind::AlphaInverted, MatteKind::Luma, MatteKind::LumaInverted];
pub fn label(self) -> &'static str {
match self {
MatteKind::Alpha => "Alpha Matte",
MatteKind::AlphaInverted => "Alpha Inverted Matte",
MatteKind::Luma => "Luma Matte",
MatteKind::LumaInverted => "Luma Inverted Matte",
}
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct TrackMatte {
pub layer: LayerId,
pub kind: MatteKind,
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum AutoOrient {
#[default]
Off,
AlongPath,
TowardsCamera,
TowardsPointOfInterest,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Layer {
pub id: LayerId,
pub name: String,
pub source: LayerSource,
pub label: Label,
#[serde(default)]
pub comment: String,
/// Comp time where the layer's time 0 sits.
pub start_time: Tick,
/// Visible span in comp time.
pub in_point: Tick,
pub out_point: Tick,
/// Time stretch in percent (100 = normal, negative = reversed).
pub stretch: f64,
pub switches: Switches,
pub blend_mode: BlendMode,
#[serde(default)]
pub preserve_transparency: bool,
#[serde(default)]
pub track_matte: Option<TrackMatte>,
#[serde(default)]
pub parent: Option<LayerId>,
#[serde(default)]
pub markers: Vec<Marker>,
/// Layer ▸ Markers ▸ Lock Markers.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub markers_locked: bool,
#[serde(default)]
pub auto_orient: AutoOrient,
/// Layer ▸ Environment Layer: the layer is the environment (image-based light and
/// reflections) of Advanced 3D comps instead of being drawn.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub environment: bool,
/// Layer ▸ Light ▸ Create Environment Light Background Layer: the layer's (equirectangular)
/// image is drawn as the 3D scene's backdrop, seen through the camera, instead of as a card.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub environment_background: bool,
/// The property tree (Masks, Effects, Transform, Text, Contents, Camera/Light options…).
pub props: PropGroup,
}
impl Layer {
pub fn is_active_at(&self, t: Tick) -> bool {
t >= self.in_point && t < self.out_point
}
/// Layer time for a comp time (stretch-aware).
pub fn layer_time(&self, comp_t: Tick) -> Tick {
let d = comp_t - self.start_time;
if (self.stretch - 100.0).abs() < 1e-9 { d } else { Tick((d.0 as f64 * 100.0 / self.stretch) as i64) }
}
/// Comp time for a layer time.
pub fn comp_time(&self, layer_t: Tick) -> Tick {
if (self.stretch - 100.0).abs() < 1e-9 { self.start_time + layer_t } else { self.start_time + Tick((layer_t.0 as f64 * self.stretch / 100.0) as i64) }
}
pub fn transform(&self) -> Option<&PropGroup> {
self.props.sub("transform")
}
pub fn transform_mut(&mut self) -> Option<&mut PropGroup> {
self.props.sub_mut("transform")
}
pub fn effects(&self) -> Option<&PropGroup> {
self.props.sub("effects")
}
pub fn masks(&self) -> Option<&PropGroup> {
self.props.sub("masks")
}
pub fn is_camera(&self) -> bool {
matches!(self.source, LayerSource::Camera)
}
pub fn is_light(&self) -> bool {
matches!(self.source, LayerSource::Light { .. })
}
/// The layer participates in 3D (3D switch, or cameras/lights which are always 3D).
pub fn is_3d(&self) -> bool {
self.switches.three_d || self.is_camera() || self.is_light()
}
pub fn has_video(&self) -> bool {
self.source.is_av() && self.switches.video
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum FootageKind {
#[default]
Video,
Still,
Sequence,
Audio,
/// A 3D model (glTF 2.0 / OBJ), placed as a model layer.
Model,
/// A data file (JSON, CSV, TSV) for data-driven animation: read by expressions through
/// `footage(name).sourceData` / `sourceText` / `dataValue`; it has no pixels.
Data,
}
/// Interpret Footage ▸ Fields and Pulldown ▸ Separate Fields.
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum FieldOrder {
/// Progressive frames.
#[default]
Off,
/// Interlaced, upper (odd) field first: each field becomes a frame at twice the rate.
UpperFirst,
LowerFirst,
}
impl FieldOrder {
pub fn label(self) -> &'static str {
match self {
FieldOrder::Off => "Off",
FieldOrder::UpperFirst => "Upper Field First",
FieldOrder::LowerFirst => "Lower Field First",
}
}
pub fn parse(s: &str) -> Option<FieldOrder> {
match s.to_ascii_lowercase().replace([' ', '_', '-'], "").as_str() {
"off" | "none" | "progressive" => Some(FieldOrder::Off),
"upper" | "upperfirst" | "upperfieldfirst" => Some(FieldOrder::UpperFirst),
"lower" | "lowerfirst" | "lowerfieldfirst" => Some(FieldOrder::LowerFirst),
_ => None,
}
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub enum AlphaMode {
#[default]
Straight,
Premultiplied,
Ignore,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Footage {
pub path: String,
pub kind: FootageKind,
pub width: u32,
pub height: u32,
pub pixel_aspect: f64,
pub frame_rate: FrameRate,
/// Native rate before "Conform to frame rate".
#[serde(default)]
pub native_rate: Option<FrameRate>,
pub duration: Tick,
pub has_video: bool,
pub has_audio: bool,
pub alpha: AlphaMode,
#[serde(default)]
pub premul_color: [f32; 3],
#[serde(default = "one")]
pub loop_count: u32,
#[serde(default)]
pub codec: String,
#[serde(default)]
pub missing: bool,
/// Image sequence files (when kind = Sequence).
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub sequence: Vec<String>,
/// Colour profile (from the file's metadata, or Interpret Footage). `None` = sRGB.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub color_profile: Option<ColorSpace>,
/// One layer of a layered file (Photoshop) instead of its merged image.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub layer: Option<SourceLayer>,
/// Interpret Footage ▸ Fields and Pulldown ▸ Separate Fields.
#[serde(default, skip_serializing_if = "is_default")]
pub fields: FieldOrder,
/// Interpret Footage ▸ Alpha ▸ Invert Alpha.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub invert_alpha: bool,
/// Interpret Footage ▸ Color ▸ Interpret As Linear Light: the file's values are linear.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub linear_light: bool,
/// Data footage ([`FootageKind::Data`]): the file's text (JSON, CSV or TSV), kept in the
/// project so expressions read it everywhere (and on the web).
#[serde(default, skip_serializing_if = "Option::is_none")]
pub data: Option<String>,
/// PDF / Illustrator footage: the page shown (0-based; File ▸ Import ▸ Page).
#[serde(default, skip_serializing_if = "is_default")]
pub page: u32,
}
fn is_default<T: Default + PartialEq>(v: &T) -> bool {
*v == T::default()
}
impl Default for Footage {
fn default() -> Self {
Footage {
path: String::new(),
kind: FootageKind::Still,
width: 0,
height: 0,
pixel_aspect: 1.0,
frame_rate: FrameRate::FPS_30,
native_rate: None,
duration: Tick::ZERO,
has_video: false,
has_audio: false,
alpha: AlphaMode::Straight,
premul_color: [0.0; 3],
loop_count: 1,
codec: String::new(),
missing: false,
sequence: vec![],
color_profile: None,
fields: FieldOrder::Off,
invert_alpha: false,
linear_light: false,
data: None,
layer: None,
page: 0,
}
}
}
impl Footage {
/// The data format of data footage: `json`, `csv` or `tsv` (from the file extension).
pub fn data_format(&self) -> Option<&'static str> {
if self.kind != FootageKind::Data {
return None;
}
let ext = std::path::Path::new(&self.path).extension().and_then(|e| e.to_str()).unwrap_or("").to_ascii_lowercase();
Some(match ext.as_str() {
"csv" => "csv",
"tsv" | "tab" => "tsv",
_ => "json",
})
}
}
/// A proxy: a stand-in file used instead of a footage item or composition (File ▸ Set Proxy /
/// Create Proxy), when its Use Proxy switch is on and the render's Proxy Use allows it.
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Proxy {
/// The proxy's footage (path, size, rate…; File ▸ Interpret Footage ▸ Proxy edits it).
pub footage: Footage,
/// Use Proxy (the Project panel's proxy indicator: filled = in use, hollow = set but off).
#[serde(default = "yes")]
pub enabled: bool,
}
/// A layer of a layered still (a Photoshop document, or a PDF / Illustrator / EPS file) used as
/// footage (File ▸ Import ▸ Composition / Composition – Retain Layer Sizes, or Choose Layer).
#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
pub struct SourceLayer {
/// Layer record index in the file (bottom of the stack = 0).
pub index: u32,
pub name: String,
/// The footage is the layer's own bounds (Retain Layer Sizes) rather than the document size.
#[serde(default)]
pub layer_size: bool,
/// A Photoshop smart object: the unique id of its embedded file (linked layer data), which
/// is the footage instead of the layer's pixels.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub embedded: Option<String>,
/// A smart object with a perspective quad or a warp: the footage is its embedded file baked
/// as placed (warped and pinned to its corners) over the placed bounds in document space.
#[serde(default, skip_serializing_if = "std::ops::Not::not")]
pub placed: bool,
}
fn one() -> u32 {
1
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Solid {
pub color: [f32; 3],
pub width: u32,
pub height: u32,
pub pixel_aspect: f64,
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
#[serde(tag = "type")]
#[allow(clippy::large_enum_variant)]
pub enum ItemKind {
Folder,
Comp(Arc<Comp>),
Footage(Footage),
Solid(Solid),
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Item {
pub id: ItemId,
pub name: String,
pub label: Label,
#[serde(default)]
pub comment: String,
/// Containing folder (None = project root).
#[serde(default)]
pub parent: Option<ItemId>,
pub kind: ItemKind,
/// The item's proxy (footage and compositions).
#[serde(default, skip_serializing_if = "Option::is_none")]
pub proxy: Option<Box<Proxy>>,
}
impl Item {
pub fn type_name(&self) -> &'static str {
match &self.kind {
ItemKind::Folder => "Folder",
ItemKind::Comp(_) => "Composition",
ItemKind::Footage(f) => match f.kind {
FootageKind::Video => "Video",
FootageKind::Still => "Image",
FootageKind::Sequence => "Image Sequence",
FootageKind::Audio => "Audio",
FootageKind::Model => "3D Model",
FootageKind::Data => "Data",
},
ItemKind::Solid(_) => "Solid",
}
}
pub fn as_comp(&self) -> Option<&Comp> {
if let ItemKind::Comp(c) = &self.kind { Some(c) } else { None }
}
pub fn is_folder(&self) -> bool {
matches!(self.kind, ItemKind::Folder)
}
/// (width, height) for visual items.
pub fn dimensions(&self) -> Option<(u32, u32)> {
match &self.kind {
ItemKind::Comp(c) => Some((c.width, c.height)),
ItemKind::Footage(f) if f.has_video => Some((f.width, f.height)),
ItemKind::Solid(s) => Some((s.width, s.height)),
_ => None,
}
}
pub fn duration(&self) -> Option<Tick> {
match &self.kind {
ItemKind::Comp(c) => Some(c.duration),
ItemKind::Footage(f) if f.kind != FootageKind::Still => Some(f.duration),
_ => None,
}
}
pub fn frame_rate(&self) -> Option<FrameRate> {
match &self.kind {
ItemKind::Comp(c) => Some(c.frame_rate),
ItemKind::Footage(f) if f.kind == FootageKind::Video || f.kind == FootageKind::Sequence => Some(f.frame_rate),
_ => None,
}
}
}
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Project {
pub schema: u32,
pub settings: ProjectSettings,
pub items: BTreeMap<ItemId, Item>,
pub next_id: u64,
/// The Render Queue (Composition ▸ Add to Render Queue).
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub render_queue: Vec<render_queue::RenderQueueItem>,
/// Render Settings / Output Module templates and their defaults.
#[serde(default, skip_serializing_if = "render_templates::RenderTemplates::is_default")]
pub render_templates: render_templates::RenderTemplates,
/// Render Queue preferences (Notify, storage overflow folders).
#[serde(default, skip_serializing_if = "render_queue::RenderQueuePrefs::is_default")]
pub render_prefs: render_queue::RenderQueuePrefs,
}
impl Default for Project {
fn default() -> Self {
Project {
schema: SCHEMA_VERSION,
settings: ProjectSettings::default(),
items: BTreeMap::new(),
next_id: 1,
render_queue: Vec::new(),
render_templates: Default::default(),
render_prefs: Default::default(),
}
}
}
impl Project {
/// Allocate an id (items, layers and property uids share one counter).
pub fn alloc(&mut self) -> u64 {
let id = self.next_id;
self.next_id += 1;
id
}
pub fn item(&self, id: ItemId) -> Option<&Item> {
self.items.get(&id)
}
pub fn item_mut(&mut self, id: ItemId) -> Option<&mut Item> {
self.items.get_mut(&id)
}
pub fn comp(&self, id: ItemId) -> Option<&Comp> {
self.items.get(&id)?.as_comp()
}
/// A shared handle on a comp: a snapshot that costs a reference count, not a deep copy of
/// its layers (frontends hold one across a frame instead of cloning the comp).
pub fn comp_arc(&self, id: ItemId) -> Option<Arc<Comp>> {
match &self.items.get(&id)?.kind {
ItemKind::Comp(c) => Some(c.clone()),
_ => None,
}
}
/// Mutable comp (copy-on-write).
pub fn comp_mut(&mut self, id: ItemId) -> Option<&mut Comp> {
match &mut self.items.get_mut(&id)?.kind {
ItemKind::Comp(c) => Some(Arc::make_mut(c)),
_ => None,
}
}
pub fn add_item(&mut self, name: &str, label: Label, parent: Option<ItemId>, kind: ItemKind) -> ItemId {
let id = ItemId(self.alloc());
self.items.insert(id, Item { id, name: name.into(), label, comment: String::new(), parent, kind, proxy: None });
id
}
/// Children of a folder (None = root), folders first then by name.
pub fn children(&self, folder: Option<ItemId>) -> Vec<&Item> {
let mut v: Vec<&Item> = self.items.values().filter(|i| i.parent == folder).collect();
v.sort_by(|a, b| b.is_folder().cmp(&a.is_folder()).then_with(|| a.name.to_lowercase().cmp(&b.name.to_lowercase())));
v
}
pub fn comps(&self) -> impl Iterator<Item = (&ItemId, &Comp)> {
self.items.iter().filter_map(|(id, i)| i.as_comp().map(|c| (id, c)))
}
pub fn find_by_name(&self, name: &str) -> Option<&Item> {
self.items.values().find(|i| i.name == name)
}
pub fn folder_named(&self, name: &str) -> Option<ItemId> {
self.items.values().find(|i| i.is_folder() && i.name == name).map(|i| i.id)
}
/// Find the comp that contains `layer`.
pub fn comp_of_layer(&self, layer: LayerId) -> Option<ItemId> {
self.comps().find(|(_, c)| c.layer(layer).is_some()).map(|(id, _)| *id)
}
/// Whether comp `inner` is (transitively) nested inside comp `outer` (to prevent cycles).
pub fn comp_contains(&self, outer: ItemId, inner: ItemId) -> bool {
if outer == inner {
return true;
}
let Some(c) = self.comp(outer) else { return false };
c.layers.iter().any(|l| matches!(l.source, LayerSource::Comp { item } if self.comp_contains(item, inner)))
}
/// Make sure `next_id` exceeds every id in the project (after loading or merging).
pub fn fix_next_id(&mut self) {
let mut m = self.next_id;
for (id, it) in &self.items {
m = m.max(id.0 + 1);
if let ItemKind::Comp(c) = &it.kind {
for l in &c.layers {
m = m.max(l.id.0 + 1).max(l.props.max_uid() + 1);
}
}
}
self.next_id = m;
}
/// Whether `other` holds the same content. An allocated id counts (an edit may hand it out
/// beyond the project, so it must stay taken). Shared compositions compare by pointer first,
/// so after a copy-on-write edit only the comps it touched are compared field by field.
pub fn same_content(&self, other: &Project) -> bool {
let item_eq = |a: &Item, b: &Item| {
let kind = match (&a.kind, &b.kind) {
(ItemKind::Comp(x), ItemKind::Comp(y)) => Arc::ptr_eq(x, y) || x == y,
(x, y) => x == y,
};
kind && a.id == b.id && a.name == b.name && a.label == b.label && a.comment == b.comment && a.parent == b.parent && a.proxy == b.proxy
};
self.schema == other.schema
&& self.next_id == other.next_id
&& self.settings == other.settings
&& self.items.len() == other.items.len()
&& self.items.iter().zip(&other.items).all(|((ka, a), (kb, b))| ka == kb && item_eq(a, b))
&& self.render_queue == other.render_queue
&& self.render_templates == other.render_templates
&& self.render_prefs == other.render_prefs
}
/// The project file's text: the project with the version that wrote it (`savedBy`), checked
/// to read back, so a save never writes a file that can't be opened (JSON has no NaN or
/// infinity: such a value would be written as `null`).
pub fn to_file_json(&self) -> Result<String, ProjectError> {
#[derive(Serialize)]
struct File<'a> {
#[serde(rename = "savedBy")]
saved_by: &'a str,
#[serde(flatten)]
project: &'a Project,
}
let text = serde_json::to_string_pretty(&File { saved_by: APP_VERSION, project: self })
.map_err(|e| ProjectError::Invalid(format!("the project can't be saved: {e}")))?;
Project::from_json(&text)
.map_err(|e| ProjectError::Invalid(format!("the project can't be saved: it holds a value a project file can't store ({e})")))?;
Ok(text)
}
pub fn to_json(&self) -> String {
serde_json::to_string_pretty(self).unwrap_or_default()
}
/// [`Project::to_json`] without indentation: smaller and faster (auto-saves).
pub fn to_json_compact(&self) -> String {
serde_json::to_string(self).unwrap_or_default()
}
pub fn from_json(s: &str) -> Result<Project, ProjectError> {
let mut p: Project = serde_json::from_str(s).map_err(|e| ProjectError::Invalid(e.to_string()))?;
if p.schema > SCHEMA_VERSION {
return Err(ProjectError::Invalid(format!("project schema {} is newer than this version supports ({SCHEMA_VERSION})", p.schema)));
}
p.fix_next_id();
Ok(p)
}
}
#[cfg(test)]
mod tests;