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effectcraft/crates/engine/src/tests/proxy.rs
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//! Proxies (Set Proxy, Use Proxy, Proxy Use render settings, comp proxies, Create Proxy) and
//! Interpret Footage (fields, pixel aspect, alpha guess / invert, linear light, Cineon Settings),
//! rendered through a synthetic footage source.
use std::sync::Arc;
use effectcraft_project::render_queue::ProxyUse;
use effectcraft_project::{AlphaMode, Footage, FootageKind, ItemId, ItemKind};
use effectcraft_raster::Image;
use effectcraft_time::{FrameRate, Tick};
use serde_json::json;
use crate::Session;
use crate::render::{FootageSource, RenderOpts};
/// Files by name: `red16.png` (16×16 red), `blue8.png` (8×8 blue), `lines.mov` (interlaced:
/// even rows red, odd rows blue; 4×4, 10 fps), `flash.mov` (10×10, 10 fps: red, then blue from
/// the second frame), `matte_black.png` / `matte_white.png` (a
/// semi-transparent green premultiplied against black / white, read as straight), `half.png`
/// (white at 25 % alpha), `wide.png` (10×10 white).
struct Synthetic;
fn file_px(path: &str, x: u32, y: u32) -> [f32; 4] {
let name = std::path::Path::new(path).file_name().and_then(std::ffi::OsStr::to_str).unwrap_or("");
match name {
"red16.png" => [1.0, 0.0, 0.0, 1.0],
"blue8.png" => [0.0, 0.0, 1.0, 1.0],
"lines.mov" => {
if y.is_multiple_of(2) {
[1.0, 0.0, 0.0, 1.0]
} else {
[0.0, 0.0, 1.0, 1.0]
}
}
// Straight interpretation of a file whose colour is green·a + matte·(1 − a), a = 0.5.
"matte_black.png" => [0.0, 0.5, 0.0, 0.5],
"matte_white.png" => [0.5, 1.0, 0.5, 0.5],
"half.png" => [1.0, 1.0, 1.0, 0.25],
// A log film scan: code values 95, 685, 400 and 1023 across, as the DPX reader hands
// them out (code / 1023).
"scan.dpx" | "plate.dpx" => {
let v = [95.0, 685.0, 400.0, 1023.0][x.min(3) as usize] / 1023.0;
[v, v, v, 1.0]
}
_ => {
let _ = x;
[1.0, 1.0, 1.0, 1.0]
}
}
}
fn size_of(path: &str) -> (u32, u32) {
match std::path::Path::new(path).file_name().and_then(std::ffi::OsStr::to_str).unwrap_or("") {
"red16.png" => (16, 16),
"blue8.png" => (8, 8),
"lines.mov" | "matte_black.png" | "matte_white.png" | "half.png" | "scan.dpx" | "plate.dpx" => (4, 4),
_ => (10, 10),
}
}
impl FootageSource for Synthetic {
fn frame(&self, _: ItemId, f: &Footage, t: Tick) -> Option<Arc<Image>> {
let (w, h) = size_of(&f.path);
let mut img = Image::new(w, h);
// `flash.mov` is red for its first frame and blue from its second (0.1 s) on.
if f.path.ends_with("flash.mov") {
let c = if t.seconds() >= 0.1 - 1e-9 { [0.0, 0.0, 1.0, 1.0] } else { [1.0, 0.0, 0.0, 1.0] };
return Some(Arc::new(Image::filled(w, h, c)));
}
for y in 0..h {
for x in 0..w {
// Decoders hand out premultiplied pixels (straight file colour × alpha).
let mut p = file_px(&f.path, x, y);
// A log scan sequence: code 95 on even frames, 685 on odd ones.
if f.path.ends_with("frames.dpx") {
let v = if f.frame_rate.frame_at(t) % 2 == 0 { 95.0 } else { 685.0 } / 1023.0;
p = [v, v, v, 1.0];
}
img.set(x, y, [p[0] * p[3], p[1] * p[3], p[2] * p[3], p[3]]);
}
}
Some(Arc::new(img))
}
}
struct Probe;
impl crate::Importer for Probe {
fn probe(&self, path: &str) -> Result<Footage, String> {
let (w, h) = size_of(path);
let video = path.ends_with(".mov") || path.ends_with("frames.dpx");
Ok(Footage {
path: path.into(),
kind: if video { FootageKind::Video } else { FootageKind::Still },
width: w,
height: h,
has_video: true,
frame_rate: FrameRate::from_f64(10.0),
duration: Tick::from_seconds_f64(if video { 2.0 } else { 0.0 }),
..Default::default()
})
}
}
fn session() -> Session {
Session { footage: Arc::new(Synthetic), importer: Some(Arc::new(Probe)), ..Default::default() }
}
fn import(s: &mut Session, path: &str) -> ItemId {
ItemId(s.execute("file.import", json!({"paths": [path]})).unwrap()["items"][0].as_u64().unwrap())
}
fn px(s: &Session, comp: ItemId, t: f64, opts: RenderOpts, x: i64, y: i64) -> [f32; 4] {
s.render(comp, Tick::from_seconds_f64(t), opts).get(x, y)
}
fn red(p: [f32; 4]) -> bool {
p[0] > 0.99 && p[2] < 0.01 && p[3] > 0.99
}
fn blue(p: [f32; 4]) -> bool {
p[2] > 0.99 && p[0] < 0.01 && p[3] > 0.99
}
#[test]
fn footage_proxy_follows_use_proxy_and_proxy_use() {
let mut s = session();
let full = import(&mut s, "/m/red16.png");
s.execute("comp.new", json!({"name": "C", "width": 16, "height": 16, "frameRate": 10, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": full.0})).unwrap();
let o = RenderOpts::default();
assert!(red(px(&s, c, 0.0, o, 8, 8)));
s.execute("file.setProxy", json!({"item": full.0, "path": "/m/blue8.png"})).unwrap();
// The 8×8 proxy fills the 16×16 footage frame.
for (x, y) in [(1, 1), (8, 8), (14, 14)] {
assert!(blue(px(&s, c, 0.0, o, x, y)), "proxy at {x},{y}");
}
assert!(s.project.item(full).unwrap().proxy.as_ref().unwrap().enabled);
// Render Settings ▸ Proxy Use.
assert!(red(px(&s, c, 0.0, RenderOpts { proxy: ProxyUse::UseNone, ..o }, 8, 8)));
assert!(red(px(&s, c, 0.0, RenderOpts { proxy: ProxyUse::UseCompOnly, ..o }, 8, 8)));
// Use Proxy off: the viewer shows the source, Use All Proxies still uses it.
s.execute("file.useProxy", json!({"item": full.0})).unwrap();
assert!(!s.project.item(full).unwrap().proxy.as_ref().unwrap().enabled);
assert!(red(px(&s, c, 0.0, o, 8, 8)));
assert!(blue(px(&s, c, 0.0, RenderOpts { proxy: ProxyUse::UseAll, ..o }, 8, 8)));
// Undo / Set Proxy ▸ None.
s.execute("edit.undo", json!({})).unwrap();
assert!(blue(px(&s, c, 0.0, o, 8, 8)));
s.execute("file.setProxyNone", json!({"item": full.0})).unwrap();
assert!(s.project.item(full).unwrap().proxy.is_none());
assert!(red(px(&s, c, 0.0, RenderOpts { proxy: ProxyUse::UseAll, ..o }, 8, 8)));
// Render queue items carry Proxy Use (Best Settings: none).
let r = s.execute("renderQueue.add", json!({"proxyUse": "all"})).unwrap();
assert_eq!(s.project.render_queue[0].settings.proxy_use, ProxyUse::UseAll, "{r}");
assert_eq!(effectcraft_project::render_queue::RenderSettings::default().proxy_use, ProxyUse::UseNone);
}
#[test]
fn comp_proxy_and_create_proxy() {
let mut s = session();
s.execute("comp.new", json!({"name": "Inner", "width": 16, "height": 16, "frameRate": 10, "duration": 1})).unwrap();
let inner = s.active_comp_id().unwrap();
s.execute("layer.newSolid", json!({"color": "#ff0000"})).unwrap();
s.execute("comp.new", json!({"name": "Outer", "width": 16, "height": 16, "frameRate": 10, "duration": 1})).unwrap();
let outer = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": inner.0})).unwrap();
let o = RenderOpts::default();
assert!(red(px(&s, outer, 0.0, o, 8, 8)));
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/blue8.png"})).unwrap();
assert!(blue(px(&s, outer, 0.0, o, 14, 1)));
assert!(blue(px(&s, outer, 0.0, RenderOpts { proxy: ProxyUse::UseCompOnly, ..o }, 8, 8)));
assert!(red(px(&s, outer, 0.0, RenderOpts { proxy: ProxyUse::UseNone, ..o }, 8, 8)));
s.execute("file.setProxyNone", json!({"item": inner.0})).unwrap();
// Create Proxy queues a half-resolution render whose post-render action sets the proxy.
s.state.project_selection = vec![inner];
let r = s.execute("file.createProxy", json!({"kind": "still"})).unwrap();
let it = s.project.render_queue.last().unwrap().clone();
assert_eq!(it.comp, inner);
assert_eq!(it.post_render, effectcraft_project::render_queue::PostRenderAction::SetProxy);
assert_eq!(it.settings.resolution, 0.5);
assert!(r["output"].as_str().unwrap().contains("Inner_proxy_"), "{r}");
let m = s.execute("file.createProxy", json!({"kind": "movie", "comp": inner.0})).unwrap();
assert!(m["output"].as_str().unwrap().ends_with("Inner_proxy.mov"), "{m}");
// The post-render action (what a finished render runs) attaches the file.
let id = it.id;
s.post_render_action(id, "/m/blue8.png").unwrap();
assert_eq!(s.project.item(inner).unwrap().proxy.as_ref().unwrap().footage.path, "/m/blue8.png");
assert!(blue(px(&s, outer, 0.0, o, 8, 8)));
}
/// Outer (4×4, 20 fps) holding a layer of Inner (4×4, 10 fps, a red solid): (inner, outer).
fn nested(s: &mut Session) -> (ItemId, ItemId) {
s.execute("comp.new", json!({"name": "Inner", "width": 4, "height": 4, "frameRate": 10, "duration": 2})).unwrap();
let inner = s.active_comp_id().unwrap();
s.execute("layer.newSolid", json!({"color": "#ff0000"})).unwrap();
s.execute("comp.new", json!({"name": "Outer", "width": 4, "height": 4, "frameRate": 20, "duration": 2})).unwrap();
let outer = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": inner.0})).unwrap();
(inner, outer)
}
/// Interpret Footage ▸ Proxy's Invert Alpha and Interpret As Linear Light change what a
/// composition proxy draws, as they do for the same file used as footage.
#[test]
fn comp_proxy_draws_with_its_interpretation() {
let mut s = session();
let (inner, outer) = nested(&mut s);
let o = RenderOpts::default();
// Invert Alpha: the 25 % proxy covers 75 %.
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/half.png"})).unwrap();
s.execute("file.interpretProxy", json!({"item": inner.0, "alpha": "straight", "invertAlpha": true})).unwrap();
let p = px(&s, outer, 0.0, o, 1, 1);
assert!((p[3] - 0.75).abs() < 0.01, "{p:?}");
// Interpret As Linear Light: the proxy draws as the file does as footage with that setting.
let f = import(&mut s, "/m/matte_black.png");
s.execute("file.interpretFootage", json!({"item": f.0, "linearLight": true})).unwrap();
s.execute("comp.new", json!({"name": "Ref", "width": 4, "height": 4, "frameRate": 20, "duration": 2})).unwrap();
let r = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": f.0})).unwrap();
let want = px(&s, r, 0.0, o, 1, 1);
assert!(want[1] / want[3] > 0.7, "linear light re-encodes the 0.5 green: {want:?}");
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/matte_black.png"})).unwrap();
s.execute("file.interpretProxy", json!({"item": inner.0, "linearLight": true})).unwrap();
let p = px(&s, outer, 0.0, o, 1, 1);
assert!((0..4).all(|i| (p[i] - want[i]).abs() < 1e-3), "{p:?} != {want:?}");
}
/// Interpret Footage ▸ Proxy ▸ Separate Fields: a composition proxy shows one field per frame
/// at twice the rate, as footage does.
#[test]
fn comp_proxy_separates_fields() {
let mut s = session();
let (inner, outer) = nested(&mut s);
let o = RenderOpts::default();
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/lines.mov"})).unwrap();
assert!(red(px(&s, outer, 0.05, o, 1, 0)) && blue(px(&s, outer, 0.05, o, 1, 1)), "progressive");
s.execute("file.interpretProxy", json!({"item": inner.0, "fields": "upper"})).unwrap();
// At 0.05 s the lower field (odd rows, blue) is shown, with the even rows interpolated.
for y in 0..3 {
assert!(blue(px(&s, outer, 0.05, o, 1, y)), "lower field at row {y}");
}
}
/// Frame Blending on a precomp layer blends the frames of the composition's proxy.
#[test]
fn comp_proxy_frames_blend() {
let mut s = session();
let (inner, outer) = nested(&mut s);
let o = RenderOpts::default();
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/flash.mov"})).unwrap();
assert!(red(px(&s, outer, 0.05, o, 1, 1)));
s.execute("layer.frameBlending", json!({"mode": "frameMix"})).unwrap();
s.execute("comp.setSwitch", json!({"switch": "frameBlending", "value": true})).unwrap();
// Halfway between the red first frame and the blue second one.
let p = px(&s, outer, 0.05, o, 1, 1);
assert!((p[0] - 0.5).abs() < 0.05 && (p[2] - 0.5).abs() < 0.05 && p[3] > 0.99, "{p:?}");
assert!(blue(px(&s, outer, 0.1, o, 1, 1)));
}
#[test]
fn comp_proxy_frame_blend_cache_tracks_alpha_interpretation() {
struct Interpreted(std::sync::atomic::AtomicUsize);
impl FootageSource for Interpreted {
fn frame(&self, _: ItemId, f: &Footage, _: Tick) -> Option<Arc<Image>> {
self.0.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
let pixel = match f.alpha {
AlphaMode::Straight => [0.4, 0.2, 0.1, 0.5],
AlphaMode::Premultiplied => [f.premul_color[0] * 0.5, 0.1, 0.0, 0.5],
AlphaMode::Ignore => [0.8, 0.4, 0.2, 1.0],
};
Some(Arc::new(Image::filled(4, 4, pixel)))
}
}
for mode in ["frameMix", "pixelMotion"] {
let mut s = session();
let footage = Arc::new(Interpreted(std::sync::atomic::AtomicUsize::new(0)));
s.footage = footage.clone();
let (inner, outer) = nested(&mut s);
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/alpha.mov"})).unwrap();
s.execute("file.interpretProxy", json!({"item": inner.0, "alpha": "straight"})).unwrap();
s.execute("layer.frameBlending", json!({"mode": mode})).unwrap();
s.execute("comp.setSwitch", json!({"switch": "frameBlending", "value": true})).unwrap();
let opts = RenderOpts::default();
let first = px(&s, outer, 0.05, opts, 1, 1);
let calls = footage.0.load(std::sync::atomic::Ordering::Relaxed);
assert_eq!(px(&s, outer, 0.05, opts, 1, 1), first);
assert_eq!(footage.0.load(std::sync::atomic::Ordering::Relaxed), calls);
for params in [
json!({"item": inner.0, "alpha": "ignore"}),
json!({"item": inner.0, "alpha": "premultiplied", "premulColor": [0.0, 0.0, 0.0]}),
json!({"item": inner.0, "alpha": "premultiplied", "premulColor": [1.0, 0.0, 0.0]}),
] {
s.execute("file.interpretProxy", params.clone()).unwrap();
let mut fresh = s.renderer(opts);
fresh.cache = None;
let want = fresh.comp_frame(outer, Tick::from_seconds_f64(0.05)).get(1, 1);
let actual = px(&s, outer, 0.05, opts, 1, 1);
assert_eq!(actual, want, "{mode} after {params}");
}
}
}
#[test]
fn interpret_proxy_settings_apply_to_the_proxy() {
let mut s = session();
let full = import(&mut s, "/m/red16.png");
s.execute("file.setProxy", json!({"item": full.0, "path": "/m/half.png"})).unwrap();
s.execute("file.interpretProxy", json!({"item": full.0, "alpha": "ignore", "invertAlpha": true})).unwrap();
let px = s.project.item(full).unwrap().proxy.clone().unwrap();
assert_eq!(px.footage.alpha, AlphaMode::Ignore);
assert!(px.footage.invert_alpha);
let f = match &s.project.item(full).unwrap().kind {
ItemKind::Footage(f) => f.clone(),
_ => panic!("not footage"),
};
assert_eq!(f.alpha, AlphaMode::Straight, "the main footage keeps its interpretation");
}
/// Agents and the control channel run commands through `execute_checked`, which refuses keys a
/// params doc does not list. The Interpret Footage commands list every key they read.
#[test]
fn interpret_commands_accept_their_keys_when_checked() {
let mut s = session();
let mov = import(&mut s, "/m/lines.mov");
let b = import(&mut s, "/m/red16.png");
s.execute("file.setProxy", json!({"item": mov.0, "path": "/m/lines.mov"})).unwrap();
s.execute("file.setProxy", json!({"item": b.0, "path": "/m/matte_black.png"})).unwrap();
s.execute_checked("file.interpretProxy", json!({"item": mov.0, "preserveRgb": true, "overrideStart": true, "startTimecode": 25})).unwrap();
let px = s.project.item(mov).unwrap().proxy.clone().unwrap().footage;
assert!(px.preserve_rgb);
assert_eq!(px.start_timecode, Some(25));
s.execute_checked("file.interpretProxy", json!({"item": mov.0, "overrideStart": false})).unwrap();
assert_eq!(s.project.item(mov).unwrap().proxy.as_ref().unwrap().footage.start_timecode, None);
s.execute_checked("file.interpretProxy", json!({"item": b.0, "guessAlpha": true})).unwrap();
assert_eq!(s.project.item(b).unwrap().proxy.as_ref().unwrap().footage.alpha, AlphaMode::Premultiplied);
s.execute_checked("file.interpretProxy", json!({"item": b.0, "premulColor": [1.0, 0.0, 0.0]})).unwrap();
assert_eq!(s.project.item(b).unwrap().proxy.as_ref().unwrap().footage.premul_color, [1.0, 0.0, 0.0]);
// `item` names one footage item, as `items` names several.
s.execute_checked("file.interpretFootage", json!({"item": b.0, "invertAlpha": true, "premulColor": [0.0, 1.0, 0.0]})).unwrap();
s.execute_checked("file.rememberInterpretation", json!({"item": b.0})).unwrap();
s.execute_checked("file.applyInterpretation", json!({"item": mov.0})).unwrap();
let f = match &s.project.item(mov).unwrap().kind {
ItemKind::Footage(f) => f.clone(),
_ => panic!("not footage"),
};
assert!(f.invert_alpha);
assert_eq!(f.premul_color, [0.0, 1.0, 0.0]);
assert_eq!(s.execute_checked("file.reloadFootage", json!({"item": mov.0})).unwrap()["reloaded"], 1);
}
/// Separate Fields: each field becomes a frame at twice the frame rate, the other field's lines
/// interpolated; the dominant field comes first.
#[test]
fn separate_fields_make_frames_from_fields() {
let mut s = session();
let mov = import(&mut s, "/m/lines.mov");
s.execute("comp.new", json!({"name": "C", "width": 4, "height": 4, "frameRate": 20, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": mov.0})).unwrap();
let o = RenderOpts::default();
// Progressive: alternating rows.
assert!(red(px(&s, c, 0.0, o, 1, 0)) && blue(px(&s, c, 0.0, o, 1, 1)));
s.execute("file.interpretFootage", json!({"item": mov.0, "fields": "upper"})).unwrap();
// Field 1 (upper = even rows, red) then field 2 (odd rows, blue), each 1/20 s.
for y in 0..3 {
assert!(red(px(&s, c, 0.0, o, 1, y)), "upper field at row {y}");
assert!(blue(px(&s, c, 0.05, o, 1, y + 1)), "lower field at row {}", y + 1);
}
s.execute("file.interpretFootage", json!({"item": mov.0, "fields": "lower"})).unwrap();
assert!(blue(px(&s, c, 0.0, o, 1, 2)));
assert!(red(px(&s, c, 0.05, o, 1, 1)));
let r = s.execute("file.interpretFootage", json!({"item": mov.0, "fields": "off"})).unwrap();
assert_eq!(r["items"][0]["fields"], "Off");
}
/// Non-square pixels: a 10×10 footage with pixel aspect 2 covers 20×10 comp pixels.
#[test]
fn pixel_aspect_stretches_footage_in_the_comp() {
let mut s = session();
let w = import(&mut s, "/m/wide.png");
s.execute("comp.new", json!({"name": "C", "width": 40, "height": 20, "frameRate": 10, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": w.0})).unwrap();
let o = RenderOpts::default();
let covered = |s: &Session| s.render(c, Tick::ZERO, o).data.iter().filter(|p| p[3] > 0.5).count();
assert_eq!(covered(&s), 100);
s.execute("file.interpretFootage", json!({"item": w.0, "pixelAspect": 2.0})).unwrap();
assert_eq!(covered(&s), 200);
// Centered on the comp: x 10..30 (edge pixels are filtered).
assert!(px(&s, c, 0.0, o, 11, 10)[3] > 0.99 && px(&s, c, 0.0, o, 28, 10)[3] > 0.99);
assert!(px(&s, c, 0.0, o, 8, 10)[3] < 0.01 && px(&s, c, 0.0, o, 31, 10)[3] < 0.01);
// A comp with the same pixel aspect shows the footage 1:1.
s.execute("comp.settings", json!({"pixelAspect": 2.0})).unwrap();
assert_eq!(covered(&s), 100);
}
/// Alpha ▸ Guess: premultiplied files are recognised with their matte colour; Invert Alpha
/// and Interpret As Linear Light change the decoded pixels.
#[test]
fn guess_alpha_invert_and_linear_light() {
let mut s = session();
let b = import(&mut s, "/m/matte_black.png");
let w = import(&mut s, "/m/matte_white.png");
let h = import(&mut s, "/m/half.png");
let foot = |s: &Session, i: ItemId| match &s.project.item(i).unwrap().kind {
ItemKind::Footage(f) => f.clone(),
_ => panic!("not footage"),
};
s.execute("file.interpretFootage", json!({"items": [b.0, w.0, h.0], "alpha": "guess"})).unwrap();
assert_eq!(foot(&s, b).alpha, AlphaMode::Premultiplied);
assert_eq!(foot(&s, b).premul_color, [0.0; 3]);
assert_eq!(foot(&s, w).alpha, AlphaMode::Premultiplied);
assert_eq!(foot(&s, w).premul_color, [1.0; 3]);
// White at 25 %: not explained by a black matte (1 > 0.25) but it is by white… either way
// the guess is consistent with the pixels.
assert!(matches!(foot(&s, h).alpha, AlphaMode::Straight | AlphaMode::Premultiplied));
// An explicit matte colour.
s.execute("file.interpretFootage", json!({"item": b.0, "alpha": "premultiplied", "matteColor": "#808080"})).unwrap();
assert!((foot(&s, b).premul_color[0] - 128.0 / 255.0).abs() < 1e-3);
// Invert Alpha: 25 % → 75 %.
s.execute("file.interpretFootage", json!({"item": h.0, "alpha": "straight", "invertAlpha": true})).unwrap();
s.execute("comp.new", json!({"name": "C", "width": 4, "height": 4, "frameRate": 10, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": h.0})).unwrap();
let p = px(&s, c, 0.0, RenderOpts::default(), 1, 1);
assert!((p[3] - 0.75).abs() < 0.01 && p[0] > 0.7, "{p:?}");
// Interpret As Linear Light keeps alpha and re-encodes the colour.
s.execute("file.interpretFootage", json!({"item": h.0, "invertAlpha": false, "linearLight": true})).unwrap();
let p = px(&s, c, 0.0, RenderOpts::default(), 1, 1);
assert!((p[3] - 0.25).abs() < 0.01, "{p:?}");
// Remember / Apply Interpretation carries the new settings.
s.state.project_selection = vec![h];
s.execute("file.rememberInterpretation", json!({"item": h.0})).unwrap();
s.execute("file.applyInterpretation", json!({"items": [w.0]})).unwrap();
assert!(foot(&s, w).linear_light);
// Color ▸ Preserve RGB (#411) is set, rendered and carried by Apply Interpretation.
let out = s.execute("file.interpretFootage", json!({"item": h.0, "preserveRgb": true})).unwrap();
assert_eq!(out["items"][0]["preserveRgb"], true);
let p = px(&s, c, 0.0, RenderOpts::default(), 1, 1);
assert!((p[0] - 0.25).abs() < 0.01, "white at 25 %, unconverted: {p:?}");
s.execute("file.rememberInterpretation", json!({"item": h.0})).unwrap();
s.execute("file.applyInterpretation", json!({"items": [w.0]})).unwrap();
assert!(foot(&s, w).preserve_rgb);
}
/// Color ▸ Cineon Settings: Logarithmic Conversion turns a DPX file's log code values into the
/// Current Gamma between the converted points (off, they show as stored); the converted points
/// are read and reported in the chosen Units; out-of-range values and footage that is not DPX
/// or Cineon are refused; Remember / Apply Interpretation and undo carry the settings.
#[test]
fn cineon_settings_convert_dpx_code_values() {
let mut s = session();
let d = import(&mut s, "/m/scan.dpx");
let other = import(&mut s, "/m/plate.dpx");
let png = import(&mut s, "/m/red16.png");
let foot = |s: &Session, i: ItemId| match &s.project.item(i).unwrap().kind {
ItemKind::Footage(f) => f.clone(),
_ => panic!("not footage"),
};
s.execute("comp.new", json!({"name": "C", "width": 4, "height": 4, "frameRate": 10, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": d.0})).unwrap();
let at = |s: &Session, x: i64| px(s, c, 0.0, RenderOpts::default(), x, 0)[0];
let near = |a: f32, b: f32| (a - b).abs() < 1.5 / 255.0;
// Off: the code values as stored.
assert!(near(at(&s, 2), 400.0 / 1023.0), "{}", at(&s, 2));
// The checked path (control channel, MCP) accepts every Cineon parameter the doc lists.
let out = s.execute_checked("file.interpretFootage", json!({"items": [d.0], "logConversion": true, "highlightRolloff": 0})).unwrap();
assert_eq!(out["items"][0]["cineon"]["logConversion"], true, "{out}");
assert!(near(at(&s, 0), 0.0) && near(at(&s, 1), 1.0), "{} {}", at(&s, 0), at(&s, 1));
assert!(near(at(&s, 2), 0.26190), "code 400 at gamma 1.7: {}", at(&s, 2));
s.execute("file.interpretFootage", json!({"item": d.0, "currentGamma": 1})).unwrap();
assert!(near(at(&s, 2), 0.10251), "code 400 in linear light: {}", at(&s, 2));
// Converted points, in 8-bit units.
let out = s
.execute_checked("file.interpretFootage", json!({"items": [d.0], "cineonUnits": "8bit", "convertedBlack": 16, "convertedWhite": 235, "currentGamma": 1, "tenBitBlack": 95, "tenBitWhite": 685}))
.unwrap();
assert_eq!(out["items"][0]["cineon"]["units"], "8bit");
assert!((out["items"][0]["cineon"]["convertedWhite"].as_f64().unwrap() - 235.0).abs() < 1e-3, "{out}");
assert!(near(at(&s, 0), 16.0 / 255.0) && near(at(&s, 1), 235.0 / 255.0), "{} {}", at(&s, 0), at(&s, 1));
// The form sends the points in the units it showed them in (`pointUnits`) with a new Units.
s.execute_checked("file.interpretFootage", json!({"items": [d.0], "pointUnits": "8bit", "cineonUnits": "float", "convertedWhite": 255})).unwrap();
let f = foot(&s, d);
assert_eq!(f.cineon.units, effectcraft_project::CineonUnits::Float);
assert!((f.cineon.converted_white - 1023.0).abs() < 1e-3, "{:?}", f.cineon);
// Refused: a black point at or above the white point, values out of range, and footage
// that is not DPX or Cineon. Nothing changes.
let before = foot(&s, d).cineon;
for bad in [
json!({"item": d.0, "tenBitBlack": 700}),
json!({"item": d.0, "tenBitWhite": 2000}),
json!({"item": d.0, "currentGamma": 0}),
json!({"item": d.0, "highlightRolloff": -1}),
json!({"item": d.0, "convertedWhite": 1.5}),
json!({"item": d.0, "cineonUnits": "12bit"}),
json!({"item": png.0, "logConversion": true}),
] {
assert!(s.execute("file.interpretFootage", bad.clone()).is_err(), "{bad}");
}
assert_eq!(foot(&s, d).cineon, before);
assert!(foot(&s, png).cineon == effectcraft_project::CineonSettings::default());
// With DPX and other footage selected, only the DPX file takes the settings.
s.execute("file.interpretFootage", json!({"items": [png.0, other.0], "logConversion": true})).unwrap();
assert!(foot(&s, other).cineon.log_conversion && !foot(&s, png).cineon.log_conversion);
s.execute("edit.undo", json!({})).unwrap();
assert!(!foot(&s, other).cineon.log_conversion);
// Remember / Apply Interpretation.
s.state.project_selection = vec![d];
s.execute("file.rememberInterpretation", json!({"item": d.0})).unwrap();
s.execute("file.applyInterpretation", json!({"items": [other.0, png.0]})).unwrap();
assert_eq!(foot(&s, other).cineon, before);
assert_eq!(foot(&s, png).cineon, effectcraft_project::CineonSettings::default());
// Off again: as stored.
s.execute("file.interpretFootage", json!({"item": d.0, "logConversion": false})).unwrap();
assert!(near(at(&s, 2), 400.0 / 1023.0), "{}", at(&s, 2));
// Frame Mix blends converted frames: halfway between code 95 (black) and 685 (white) at
// Current Gamma 1 is 0.5, not the conversion of the blended code values.
let seq = import(&mut s, "/m/frames.dpx");
s.execute("file.interpretFootage", json!({"item": seq.0, "logConversion": true, "currentGamma": 1, "highlightRolloff": 0})).unwrap();
s.execute("comp.new", json!({"name": "Blend", "width": 10, "height": 10, "frameRate": 20, "duration": 1})).unwrap();
let bc = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": seq.0})).unwrap();
s.execute("layer.frameBlending", json!({"mode": "frameMix"})).unwrap();
let mid = px(&s, bc, 0.05, RenderOpts::default(), 5, 5)[0];
assert!(near(mid, 0.5), "frame-mixed log frames: {mid}");
// A DPX proxy of a composition: Interpret Proxy's settings convert it where it stands in.
s.execute("comp.new", json!({"name": "Inner", "width": 4, "height": 4, "frameRate": 10, "duration": 1})).unwrap();
let inner = s.active_comp_id().unwrap();
s.execute("comp.new", json!({"name": "Outer", "width": 4, "height": 4, "frameRate": 10, "duration": 1})).unwrap();
let outer = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": inner.0})).unwrap();
s.execute("file.setProxy", json!({"item": inner.0, "path": "/m/scan.dpx"})).unwrap();
let proxied = |s: &Session, x: i64| px(s, outer, 0.0, RenderOpts::default(), x, 0)[0];
assert!(near(proxied(&s, 1), 685.0 / 1023.0), "{}", proxied(&s, 1));
s.execute_checked("file.interpretProxy", json!({"items": [inner.0], "logConversion": true, "highlightRolloff": 0})).unwrap();
assert!(near(proxied(&s, 0), 0.0) && near(proxied(&s, 1), 1.0), "{} {}", proxied(&s, 0), proxied(&s, 1));
}
/// The Footage panel, the Project panel thumbnail and the tracker's source frames show DPX
/// footage with its Cineon Settings, as a composition renders it.
#[test]
fn cineon_settings_apply_to_footage_panel_thumbnail_and_tracking() {
let mut s = session();
let d = import(&mut s, "/m/scan.dpx");
s.execute("comp.new", json!({"name": "C", "width": 4, "height": 4, "frameRate": 10, "duration": 1})).unwrap();
let c = s.active_comp_id().unwrap();
s.execute("layer.addItem", json!({"item": d.0})).unwrap();
s.execute("file.interpretFootage", json!({"item": d.0, "logConversion": true, "highlightRolloff": 0})).unwrap();
let near = |a: f32, b: f32| (a - b).abs() < 1.5 / 255.0;
let rendered = px(&s, c, 0.0, RenderOpts::default(), 2, 0)[0];
assert!(near(rendered, 0.26190), "code 400 at gamma 1.7: {rendered}");
let f = match &s.project.item(d).unwrap().kind {
ItemKind::Footage(f) => f.clone(),
_ => panic!("not footage"),
};
let panel = crate::commands::footage_panel::frame(&s, d, &f, Tick::ZERO).unwrap().get(2, 0)[0];
assert!(near(panel, rendered), "Footage panel: {panel}");
let (w, _, rgba) = (s.thumbnail_job(d, Tick::ZERO, 64).unwrap())().unwrap();
assert_eq!(w, 4);
let thumb = rgba[8] as f32 / 255.0;
assert!(near(thumb, rendered), "Project panel thumbnail: {thumb}");
let comp = s.project.comp(c).unwrap();
let r = crate::render::Renderer::new(&s.project, s.footage.as_ref(), RenderOpts::default());
let (img, _) = crate::tracking::source_frame(&r, &s.project, c, comp, &comp.layers[0], Tick::ZERO, None).unwrap();
assert!(near(img.get(2, 0)[0], rendered), "tracker source frame: {}", img.get(2, 0)[0]);
}