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-rw-r--r--apps/web/src/hooks/use-frame-cache.ts348
1 files changed, 0 insertions, 348 deletions
diff --git a/apps/web/src/hooks/use-frame-cache.ts b/apps/web/src/hooks/use-frame-cache.ts
deleted file mode 100644
index cce187f1..00000000
--- a/apps/web/src/hooks/use-frame-cache.ts
+++ /dev/null
@@ -1,348 +0,0 @@
-import { useRef, useCallback } from "react";
-import {
- TimelineTrack,
- TimelineElement,
- MediaElement,
- TextElement,
-} from "@/types/timeline";
-import { MediaFile } from "@/types/media";
-import { TProject } from "@/types/project";
-
-interface CachedFrame {
- imageData: ImageData;
- timelineHash: string;
- timestamp: number;
-}
-
-interface FrameCacheOptions {
- maxCacheSize?: number; // Maximum number of cached frames
- cacheResolution?: number; // Frames per second to cache at
-}
-
-// Shared singleton cache across hook instances (HMR-safe)
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-const __frameCacheGlobal: any = globalThis as any;
-const __sharedFrameCache: Map<number, CachedFrame> =
- __frameCacheGlobal.__sharedFrameCache ?? new Map<number, CachedFrame>();
-__frameCacheGlobal.__sharedFrameCache = __sharedFrameCache;
-
-export function useFrameCache(options: FrameCacheOptions = {}) {
- const { maxCacheSize = 300, cacheResolution = 30 } = options; // 10 seconds at 30fps
-
- const frameCacheRef = useRef(__sharedFrameCache);
-
- // Generate a hash of the timeline state that affects rendering
- const getTimelineHash = useCallback(
- (
- time: number,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- sceneId?: string
- ): string => {
- // Get elements that are active at this time
- const activeElements: Array<{
- id: string;
- type: string;
- startTime: number;
- duration: number;
- trimStart: number;
- trimEnd: number;
- mediaId?: string;
- // Text-specific properties
- content?: string;
- fontSize?: number;
- fontFamily?: string;
- color?: string;
- backgroundColor?: string;
- x?: number;
- y?: number;
- rotation?: number;
- opacity?: number;
- }> = [];
-
- for (const track of tracks) {
- if (track.muted) continue;
-
- for (const element of track.elements) {
- // Check if element has hidden property (some elements might not have it)
- const isHidden = "hidden" in element ? element.hidden : false;
- if (isHidden) continue;
-
- const elementStart = element.startTime;
- const elementEnd =
- element.startTime +
- (element.duration - element.trimStart - element.trimEnd);
-
- if (time >= elementStart && time < elementEnd) {
- if (element.type === "media") {
- const mediaElement = element as MediaElement;
- activeElements.push({
- id: element.id,
- type: element.type,
- startTime: element.startTime,
- duration: element.duration,
- trimStart: element.trimStart,
- trimEnd: element.trimEnd,
- mediaId: mediaElement.mediaId,
- });
- } else if (element.type === "text") {
- const textElement = element as TextElement;
- activeElements.push({
- id: element.id,
- type: element.type,
- startTime: element.startTime,
- duration: element.duration,
- trimStart: element.trimStart,
- trimEnd: element.trimEnd,
- content: textElement.content,
- fontSize: textElement.fontSize,
- fontFamily: textElement.fontFamily,
- color: textElement.color,
- backgroundColor: textElement.backgroundColor,
- x: textElement.x,
- y: textElement.y,
- rotation: textElement.rotation,
- opacity: textElement.opacity,
- });
- }
- }
- }
- }
-
- // Include project settings that affect rendering
- const projectState = {
- backgroundColor: activeProject?.backgroundColor,
- backgroundType: activeProject?.backgroundType,
- blurIntensity: activeProject?.blurIntensity,
- canvasSize: activeProject?.canvasSize,
- };
-
- const hash = {
- activeElements,
- projectState,
- sceneId,
- time: Math.floor(time * cacheResolution) / cacheResolution,
- };
- return JSON.stringify(hash);
- },
- [cacheResolution]
- );
-
- // Check if a frame is cached and valid
- const isFrameCached = useCallback(
- (
- time: number,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- sceneId?: string
- ): boolean => {
- const frameKey = Math.floor(time * cacheResolution);
- const cached = frameCacheRef.current.get(frameKey);
-
- if (!cached) return false;
-
- const currentHash = getTimelineHash(
- time,
- tracks,
- mediaFiles,
- activeProject,
- sceneId
- );
- return cached.timelineHash === currentHash;
- },
- [getTimelineHash, cacheResolution]
- );
-
- // Get cached frame if available and valid
- const getCachedFrame = useCallback(
- (
- time: number,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- sceneId?: string
- ): ImageData | null => {
- const frameKey = Math.floor(time * cacheResolution);
- const cached = frameCacheRef.current.get(frameKey);
-
- if (!cached) {
- return null;
- }
-
- const currentHash = getTimelineHash(
- time,
- tracks,
- mediaFiles,
- activeProject,
- sceneId
- );
- console.log(cached.timelineHash === currentHash);
- if (cached.timelineHash !== currentHash) {
- // Cache is stale, remove it
- console.log(
- "Cache miss - hash mismatch:",
- JSON.stringify({
- cachedHash: cached.timelineHash.slice(0, 100),
- currentHash: currentHash.slice(0, 100),
- })
- );
- frameCacheRef.current.delete(frameKey);
- return null;
- }
-
- return cached.imageData;
- },
- [getTimelineHash, cacheResolution]
- );
-
- // Cache a rendered frame
- const cacheFrame = useCallback(
- (
- time: number,
- imageData: ImageData,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- sceneId?: string
- ): void => {
- const frameKey = Math.floor(time * cacheResolution);
- const timelineHash = getTimelineHash(
- time,
- tracks,
- mediaFiles,
- activeProject,
- sceneId
- );
-
- // Enforce cache size limit (LRU eviction)
- if (frameCacheRef.current.size >= maxCacheSize) {
- // Remove oldest entries
- const entries = Array.from(frameCacheRef.current.entries());
- entries.sort((a, b) => a[1].timestamp - b[1].timestamp);
-
- // Remove oldest 20% of entries
- const toRemove = Math.floor(entries.length * 0.2);
- for (let i = 0; i < toRemove; i++) {
- frameCacheRef.current.delete(entries[i][0]);
- }
- }
-
- frameCacheRef.current.set(frameKey, {
- imageData,
- timelineHash,
- timestamp: Date.now(),
- });
- },
- [getTimelineHash, cacheResolution, maxCacheSize]
- );
-
- // Clear cache when timeline changes significantly
- const invalidateCache = useCallback(() => {
- frameCacheRef.current.clear();
- }, []);
-
- // Get render status for timeline indicator
- const getRenderStatus = useCallback(
- (
- time: number,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- sceneId?: string
- ): "cached" | "not-cached" => {
- return isFrameCached(time, tracks, mediaFiles, activeProject, sceneId)
- ? "cached"
- : "not-cached";
- },
- [isFrameCached]
- );
-
- // Pre-render frames around current time
- const preRenderNearbyFrames = useCallback(
- async (
- currentTime: number,
- tracks: TimelineTrack[],
- mediaFiles: MediaFile[],
- activeProject: TProject | null,
- renderFunction: (time: number) => Promise<ImageData>,
- sceneId?: string,
- range: number = 3 // seconds
- ) => {
- const framesToPreRender: number[] = [];
-
- // Calculate frames to pre-render (around current time)
- for (
- let offset = -range;
- offset <= range;
- offset += 1 / cacheResolution
- ) {
- const time = currentTime + offset;
- if (time < 0) continue;
-
- if (!isFrameCached(time, tracks, mediaFiles, activeProject, sceneId)) {
- framesToPreRender.push(time);
- }
- }
-
- // Expand to full 1-second buckets to avoid fragmented tiny cache regions
- const secondsToPreRender = new Set<number>();
- for (const t of framesToPreRender) {
- secondsToPreRender.add(Math.floor(t));
- }
-
- const expandedTimes: number[] = [];
- for (const s of secondsToPreRender) {
- for (let k = 0; k < cacheResolution; k++) {
- const t = s + k / cacheResolution;
- if (t < 0) continue;
- if (!isFrameCached(t, tracks, mediaFiles, activeProject, sceneId)) {
- expandedTimes.push(t);
- }
- }
- }
-
- // Sort forward-first near currentTime to improve perceived responsiveness
- expandedTimes.sort((a, b) => {
- const da = a >= currentTime ? a - currentTime : currentTime - a + 1e6;
- const db = b >= currentTime ? b - currentTime : currentTime - b + 1e6;
- return da - db;
- });
-
- // Cap total scheduled renders to avoid jank (e.g., up to 90 frames)
- const CAP = Math.max(30, Math.min(90, cacheResolution * 3));
- const toSchedule = expandedTimes.slice(0, CAP);
-
- // Pre-render during idle time
- for (const time of toSchedule) {
- requestIdleCallback(async () => {
- try {
- const imageData = await renderFunction(time);
- cacheFrame(
- time,
- imageData,
- tracks,
- mediaFiles,
- activeProject,
- sceneId
- );
- } catch (error) {
- console.warn(`Pre-render failed for time ${time}:`, error);
- }
- });
- }
- },
- [isFrameCached, cacheFrame, cacheResolution]
- );
-
- return {
- isFrameCached,
- getCachedFrame,
- cacheFrame,
- invalidateCache,
- getRenderStatus,
- preRenderNearbyFrames,
- cacheSize: frameCacheRef.current.size,
- };
-}
generated by cgit v1.3.1 (git 2.54.0) at 2026-10-17 13:44:37 +0000