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| author | Maze Winther <mazewinther@gmail.com> | 2026-04-20 11:31:17 +0200 |
|---|---|---|
| committer | Maze Winther <mazewinther@gmail.com> | 2026-04-20 11:31:17 +0200 |
| commit | 3e89d2998588f8e35c524e523ba2ee853f0f6475 (patch) | |
| tree | 57221f96c1259b3b07e3ddf8c1adefc502b9d8eb /apps/web/src/lib/timeline/audio-state.ts | |
| parent | 729d10592f4e802f91c555c309ff3ba4b119f843 (diff) | |
| download | opencut-3e89d2998588f8e35c524e523ba2ee853f0f6475.tar.gz | |
refactor: restructure files to their domains, new preview overlay system, and dep graph
Diffstat (limited to 'apps/web/src/lib/timeline/audio-state.ts')
| -rw-r--r-- | apps/web/src/lib/timeline/audio-state.ts | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/apps/web/src/lib/timeline/audio-state.ts b/apps/web/src/lib/timeline/audio-state.ts deleted file mode 100644 index 165ece94..00000000 --- a/apps/web/src/lib/timeline/audio-state.ts +++ /dev/null @@ -1,116 +0,0 @@ -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 buildWaveformGainSamples({ - element, - count, -}: { - element: AudioCapableElement; - count: number; -}): number[] { - const durationSeconds = element.duration / TICKS_PER_SECOND; - return Array.from({ length: count }, (_, i) => { - const localTime = ((i + 0.5) / count) * durationSeconds; - return resolveEffectiveAudioGain({ element, localTime }); - }); -} - -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; -} |
