1 files changed, 102 insertions, 100 deletions
diff --git a/apps/web/src/lib/timeline/audio-state.ts b/apps/web/src/lib/timeline/audio-state.ts
index 28e381c2..9625c482 100644
--- a/apps/web/src/lib/timeline/audio-state.ts
+++ b/apps/web/src/lib/timeline/audio-state.ts
@@ -1,100 +1,102 @@
-import { hasKeyframesForPath } from "@/lib/animation/keyframe-query";
-import { resolveNumberAtTime } from "@/lib/animation/resolve";
-import { VOLUME_DB_MAX, VOLUME_DB_MIN } from "./audio-constants";
-import type { TimelineElement } from "./types";
-const DEFAULT_STEP_SECONDS = 1 / 60;
-
-export type AudioCapableElement = Extract<
-	TimelineElement,
-	{ type: "audio" | "video" }
->;
-
-export function clampDb(value: number): number {
-	if (!Number.isFinite(value)) {
-		return 0;
-	}
-
-	return Math.min(VOLUME_DB_MAX, Math.max(VOLUME_DB_MIN, value));
-}
-
-export function dBToLinear(db: number): number {
-	return 10 ** (clampDb(db) / 20);
-}
-
-export function hasAnimatedVolume({
-	element,
-}: {
-	element: AudioCapableElement;
-}): boolean {
-	return hasKeyframesForPath({
-		animations: element.animations,
-		propertyPath: "volume",
-	});
-}
-
-export function resolveEffectiveAudioGain({
-	element,
-	trackMuted = false,
-	localTime,
-}: {
-	element: AudioCapableElement;
-	trackMuted?: boolean;
-	localTime: number;
-}): number {
-	if (trackMuted || element.muted === true) {
-		return 0;
-	}
-
-	const resolvedDb = resolveNumberAtTime({
-		baseValue: element.volume ?? 0,
-		animations: element.animations,
-		propertyPath: "volume",
-		localTime,
-	});
-
-	return dBToLinear(resolvedDb);
-}
-
-export function buildAudioGainAutomation({
-	element,
-	trackMuted = false,
-	fromLocalTime,
-	toLocalTime,
-	stepSeconds = DEFAULT_STEP_SECONDS,
-}: {
-	element: AudioCapableElement;
-	trackMuted?: boolean;
-	fromLocalTime: number;
-	toLocalTime: number;
-	stepSeconds?: number;
-}): Array<{ localTime: number; gain: number }> {
-	const startTime = Math.max(0, fromLocalTime);
-	const endTime = Math.max(startTime, toLocalTime);
-	const safeStep =
-		Number.isFinite(stepSeconds) && stepSeconds > 0
-			? stepSeconds
-			: DEFAULT_STEP_SECONDS;
-	const points: Array<{ localTime: number; gain: number }> = [];
-
-	for (let localTime = startTime; localTime < endTime; localTime += safeStep) {
-		points.push({
-			localTime,
-			gain: resolveEffectiveAudioGain({
-				element,
-				trackMuted,
-				localTime,
-			}),
-		});
-	}
-
-	points.push({
-		localTime: endTime,
-		gain: resolveEffectiveAudioGain({
-			element,
-			trackMuted,
-			localTime: endTime,
-		}),
-	});
-
-	return points;
-}
+import { hasKeyframesForPath } from "@/lib/animation/keyframe-query";
+import { resolveNumberAtTime } from "@/lib/animation/resolve";
+import { VOLUME_DB_MAX, VOLUME_DB_MIN } from "./audio-constants";
+import type { TimelineElement } from "./types";
+const DEFAULT_STEP_SECONDS = 1 / 60;
+
+export type AudioCapableElement = Extract<
+	TimelineElement,
+	{ type: "audio" | "video" }
+>;
+
+export function clampDb(value: number): number {
+	if (!Number.isFinite(value)) {
+		return 0;
+	}
+
+	return Math.min(VOLUME_DB_MAX, Math.max(VOLUME_DB_MIN, value));
+}
+
+export function dBToLinear(db: number): number {
+	return 10 ** (clampDb(db) / 20);
+}
+
+export function hasAnimatedVolume({
+	element,
+}: {
+	element: AudioCapableElement;
+}): boolean {
+	return hasKeyframesForPath({
+		animations: element.animations,
+		propertyPath: "volume",
+	});
+}
+
+import { TICKS_PER_SECOND } from "@/lib/wasm";
+
+export function resolveEffectiveAudioGain({
+	element,
+	trackMuted = false,
+	localTime,
+}: {
+	element: AudioCapableElement;
+	trackMuted?: boolean;
+	localTime: number;
+}): number {
+	if (trackMuted || element.muted === true) {
+		return 0;
+	}
+
+	const resolvedDb = resolveNumberAtTime({
+		baseValue: element.volume ?? 0,
+		animations: element.animations,
+		propertyPath: "volume",
+		localTime: Math.round(localTime * TICKS_PER_SECOND),
+	});
+
+	return dBToLinear(resolvedDb);
+}
+
+export function buildAudioGainAutomation({
+	element,
+	trackMuted = false,
+	fromLocalTime,
+	toLocalTime,
+	stepSeconds = DEFAULT_STEP_SECONDS,
+}: {
+	element: AudioCapableElement;
+	trackMuted?: boolean;
+	fromLocalTime: number;
+	toLocalTime: number;
+	stepSeconds?: number;
+}): Array<{ localTime: number; gain: number }> {
+	const startTime = Math.max(0, fromLocalTime);
+	const endTime = Math.max(startTime, toLocalTime);
+	const safeStep =
+		Number.isFinite(stepSeconds) && stepSeconds > 0
+			? stepSeconds
+			: DEFAULT_STEP_SECONDS;
+	const points: Array<{ localTime: number; gain: number }> = [];
+
+	for (let localTime = startTime; localTime < endTime; localTime += safeStep) {
+		points.push({
+			localTime,
+			gain: resolveEffectiveAudioGain({
+				element,
+				trackMuted,
+				localTime,
+			}),
+		});
+	}
+
+	points.push({
+		localTime: endTime,
+		gain: resolveEffectiveAudioGain({
+			element,
+			trackMuted,
+			localTime: endTime,
+		}),
+	});
+
+	return points;
+}