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fix(cli): address media treatment review findings

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This commit is contained in:
ukimsanov
2026-07-26 01:25:42 -07:00
parent 6d5961b802
commit c1dde28980
11 changed files with 526 additions and 124 deletions
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skills/media-use/scripts/lib/grade-analyzer.mjs
+28 -18
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@@ -1,3 +1,5 @@
// Vendored plain-JS copy of packages/core/src/mediaGradeAnalyzer.ts.
// packages/core/src/mediaGradeAnalyzer.vendoredParity.test.ts guards behavior drift.
import { execFileSync } from "node:child_process";
import { basename, extname } from "node:path";
@@ -114,6 +116,26 @@ function summarizeFrames(frames) {
};
}
function suggestedExposure(normalizedAverage, yLow, yHigh) {
if (normalizedAverage < 0.28 && yHigh / 255 < 0.65) {
return clamp((0.32 - normalizedAverage) * 1.2, "exposure");
}
if (normalizedAverage > 0.72 && yLow / 255 > 0.3) {
return clamp((0.68 - normalizedAverage) * 1.2, "exposure");
}
return 0;
}
function suggestedTemperature(uAverage, vAverage) {
const chromaWarmth = (vAverage - 128 + (128 - uAverage)) / 128;
return Math.abs(chromaWarmth) >= 0.08 ? clamp(-chromaWarmth * 0.25, "temperature") : 0;
}
function suggestedTint(uAverage, vAverage) {
const cast = uAverage + vAverage - 256;
return Math.abs(cast) >= 10 ? clamp(-cast / 512, "tint") : 0;
}
export function statsToAdjust(stats) {
const yMin = Number(stats.yMin);
const yLow = Number(stats.yLow ?? stats.yMin);
@@ -125,29 +147,17 @@ export function statsToAdjust(stats) {
const shadowClipRisk = Number(stats.shadowClipRisk ?? (yLow <= 16 ? 1 : 0));
const highlightClipRisk = Number(stats.highlightClipRisk ?? (yHigh >= 235 ? 1 : 0));
const percentileSpread = (yHigh - yLow) / 255;
const normalizedAvg = yAvg / 255;
const exposure =
normalizedAvg < 0.28 && yHigh / 255 < 0.65
? clamp((0.32 - normalizedAvg) * 1.2, "exposure")
: normalizedAvg > 0.72 && yLow / 255 > 0.3
? clamp((0.68 - normalizedAvg) * 1.2, "exposure")
: 0;
const normalizedAverage = yAvg / 255;
const contrast = percentileSpread < 0.35 ? clamp((0.35 - percentileSpread) * 0.4, "contrast") : 0;
const whites = clamp(-highlightClipRisk * 0.08, "whites");
const blacks = clamp(shadowClipRisk * 0.08, "blacks");
const chromaWarmth = (vAvg - 128 + (128 - uAvg)) / 128;
const temperature =
Math.abs(chromaWarmth) >= 0.08 ? clamp(-chromaWarmth * 0.25, "temperature") : 0;
const tint = Math.abs(uAvg + vAvg - 256) >= 10 ? clamp(-(uAvg + vAvg - 256) / 512, "tint") : 0;
return {
adjust: {
exposure: round(exposure),
exposure: round(suggestedExposure(normalizedAverage, yLow, yHigh)),
contrast: round(contrast),
blacks: round(blacks),
whites: round(whites),
temperature: round(temperature),
tint: round(tint),
blacks: round(clamp(shadowClipRisk * 0.08, "blacks")),
whites: round(clamp(-highlightClipRisk * 0.08, "whites")),
temperature: round(suggestedTemperature(uAvg, vAvg)),
tint: round(suggestedTint(uAvg, vAvg)),
},
measured: {
frames: Number(stats.frames ?? 1),