@meframe/core - npm Package Compare versions

Comparing version 0.0.27 to 0.0.28

dist/cache/CacheManager.d.ts

@@ -96,2 +96,4 @@ import { TimeUs } from '../model/types';
     }): Promise<boolean>;
+    clearL1Cache(): void;
+    clearL2Cache(): Promise<void>;
     clear(): Promise<void>;
@@ -98,0 +100,0 @@ getMetadata(): {

dist/cache/CacheManager.d.ts.map

@@ -1,1 +0,1 @@
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dist/cache/CacheManager.js

@@ -172,3 +172,3 @@ import { VideoL1Cache } from "./l1/VideoL1Cache.js";
   resetAudioCache() {
-    this.audioL1Cache.reset();
+    this.audioL1Cache.clear();
   }
@@ -310,6 +310,13 @@ clearClipAudioData(clipId) {
   }
-  async clear() {
+  clearL1Cache() {
     this.videoL1Cache.clear();
+    this.audioL1Cache.clear();
+  }
+  async clearL2Cache() {
     await this.l2Cache.clear();
   }
+  async clear() {
+    this.clearL1Cache();
+    await this.clearL2Cache();
+  }
   getMetadata() {
@@ -316,0 +323,0 @@ return {

dist/cache/CacheManager.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"CacheManager.js","sources":["../../src/cache/CacheManager.ts"],"sourcesContent":["import type { TimeUs } from '../model/types';\nimport { RcFrame } from '../model';\nimport { VideoL1Cache } from './l1/VideoL1Cache';\nimport { L2Cache } from './l2/L2Cache';\nimport { MeframeEvent } from '../event/events';\nimport type { EventBus } from '../event/EventBus';\nimport type { EventPayloadMap } from '../event/events';\nimport { AudioL1Cache } from './l1/AudioL1Cache';\nimport { WaiterReplacedError } from '../utils/errors';\n\ninterface CacheManagerConfig {\n  l1: {\n    maxMemoryMB: number;\n    maxGOPs?: number;\n    gopIntervalUs?: number;\n  };\n  l2: {\n    maxSizeMB: number;\n    projectId: string;\n  };\n}\n\ninterface ClipReadyWaiter {\n  clipId: string;\n  minFrameCount: number;\n  startTimeUs: TimeUs;\n  currentCount: number;\n  resolve: (ready: boolean) => void;\n  reject: (reason?: unknown) => void;\n  timeoutId?: ReturnType<typeof setTimeout>;\n}\n\n/**\n * Simplified CacheManager for 2-Clip strategy\n *\n * Core features:\n * - L1 (VRAM) for composed VideoFrames\n * - L2 (IndexedDB/OPFS) for encoded chunks\n * - Clip-level cache management\n */\nexport class CacheManager {\n  private readonly videoL1Cache: VideoL1Cache;\n  private readonly audioL1Cache: AudioL1Cache;\n  readonly l2Cache: L2Cache;\n  private clipReadyWaiters = new Map<string, ClipReadyWaiter>();\n  private eventBus?: EventBus<EventPayloadMap>;\n\n  constructor(config: CacheManagerConfig, eventBus?: EventBus<EventPayloadMap>) {\n    this.videoL1Cache = new VideoL1Cache(config.l1);\n    this.l2Cache = new L2Cache(config.l2);\n    this.audioL1Cache = new AudioL1Cache();\n    this.eventBus = eventBus;\n  }\n\n  async init(): Promise<void> {\n    await this.l2Cache.init();\n  }\n\n  async receiveComposedFrames(\n    stream: ReadableStream<VideoFrame>,\n    params: {\n      clipId: string;\n      trackId: string;\n      fps: number;\n      clipStartUs?: TimeUs;\n      onFrame: (info: { clipId: string; timeUs: TimeUs }) => void;\n    }\n  ): Promise<void> {\n    const reader = stream.getReader();\n    const process = async (): Promise<void> => {\n      const { done, value } = await reader.read();\n      if (done) {\n        reader.releaseLock();\n        return;\n      }\n      if (value) {\n        const fps = params.fps > 0 ? params.fps : 30;\n        const frameDuration = Math.round(1_000_000 / fps);\n\n        const frame = value;\n        const timestamp = frame.timestamp ?? 0;\n\n        const rcFrame = this.videoL1Cache.addFrame(\n          frame,\n          params.clipId,\n          frameDuration,\n          params.trackId\n        );\n\n        // Calculate global time for event emission\n        const globalTimeUs = (params.clipStartUs ?? 0) + timestamp;\n\n        this.checkAndNotifyClipReady(params.clipId, timestamp);\n        // Emit cover event only for the first frame of the composition (global time = 0)\n        if (globalTimeUs === 0) {\n          this.eventBus?.emit(MeframeEvent.CacheCover, {\n            timeUs: globalTimeUs,\n            clipId: params.clipId,\n            level: 'L1',\n            size: rcFrame.sizeEstimate ?? 0,\n          });\n        }\n\n        const info = { clipId: params.clipId, timeUs: timestamp };\n        this.eventBus?.emit(MeframeEvent.ComposeFrameReady, {\n          timeUs: globalTimeUs,\n          frameNumber: Math.floor(globalTimeUs / frameDuration),\n          renderTimeMs: 0,\n          trackId: params.trackId,\n          clipId: params.clipId,\n        });\n\n        params.onFrame(info);\n      }\n\n      await process();\n    };\n\n    try {\n      await process();\n    } catch (error) {\n      this.eventBus?.emit(MeframeEvent.ComposeFrameDropped, {\n        timeUs: 0,\n        reason: 'compose_slow',\n      });\n      reader.releaseLock();\n      console.error('[CacheManager] receiveComposedFrames error: ', error);\n    }\n  }\n\n  async receiveEncodedChunks(\n    stream: ReadableStream<{ chunk: EncodedVideoChunk; metadata: EncodedVideoChunkMetadata }>,\n    clipId: string,\n    track: 'video' | 'audio',\n    options?: {\n      onComplete?: (metadata: EncodedVideoChunkMetadata) => void;\n      onError?: (error: Error) => void;\n    }\n  ): Promise<void> {\n    const reader = stream.getReader();\n    const chunks: Array<EncodedVideoChunk | EncodedAudioChunk> = [];\n    const batchSize = track === 'video' ? 30 : 50;\n    let decoderConfig: any = null;\n    let metadata: EncodedVideoChunkMetadata | EncodedAudioChunkMetadata | undefined;\n    const process = async (): Promise<void> => {\n      const { done, value } = await reader.read();\n      const { chunk, metadata: chunkMetadata } = value ?? {};\n      if (chunkMetadata) {\n        metadata = chunkMetadata;\n        // Extract decoderConfig from first chunk's metadata\n        if (!decoderConfig && chunkMetadata.decoderConfig) {\n          decoderConfig = chunkMetadata.decoderConfig;\n        }\n      }\n      if (done) {\n        // Flush remaining chunks on stream end\n        if (chunks.length > 0) {\n          await this.l2Cache.put(clipId, chunks, track, {\n            isComplete: true,\n            metadata: decoderConfig,\n          });\n          const firstChunk = chunks[0];\n          if (firstChunk) {\n            this.eventBus?.emit(MeframeEvent.CacheWrite, {\n              clipId,\n              timeUs: firstChunk.timestamp,\n              level: 'L2',\n              size: chunks.reduce((sum, c) => sum + c.byteLength, 0),\n            });\n          }\n        } else {\n          // Mark as complete even if no chunks in final batch\n          await this.l2Cache.markComplete(clipId, track);\n        }\n        reader.releaseLock();\n\n        // Notify completion\n        if (options?.onComplete) {\n          options.onComplete(metadata!);\n        }\n        return;\n      }\n\n      if (chunk) {\n        chunks.push(chunk);\n\n        this.eventBus?.emit(MeframeEvent.EncodeChunkReady, {\n          timeUs: chunk.timestamp,\n          durationUs: chunk.duration ?? 0,\n          track,\n          size: chunk.byteLength,\n        });\n\n        // Batch write to L2 when buffer is full\n        if (chunks.length >= batchSize) {\n          const batchToWrite = chunks.splice(0);\n          if (batchToWrite.length > 0) {\n            await this.l2Cache.put(clipId, batchToWrite, track, {\n              metadata: decoderConfig,\n            });\n            this.eventBus?.emit(MeframeEvent.CacheWrite, {\n              clipId,\n              timeUs: chunk.timestamp,\n              level: 'L2',\n              size: batchToWrite.reduce((sum, c) => sum + c.byteLength, 0),\n            });\n          }\n        }\n      }\n\n      await process();\n    };\n\n    try {\n      await process();\n    } catch (error) {\n      // Flush any accumulated chunks before throwing\n      if (chunks.length > 0) {\n        await this.l2Cache.put(clipId, chunks, track, {\n          metadata: decoderConfig,\n        });\n      }\n      this.eventBus?.emit(MeframeEvent.EncodeChunkError, {\n        timeUs: 0,\n        track,\n        error: error as Error,\n      });\n      reader.releaseLock();\n\n      // Notify error\n      if (options?.onError) {\n        options.onError(error as Error);\n      }\n    }\n  }\n\n  acceptMixedAudio(\n    stream: ReadableStream<AudioData>,\n    metadata: { sampleRate: number; numberOfChannels: number }\n  ): void {\n    this.audioL1Cache.attachStream(stream, metadata);\n  }\n\n  putClipAudioData(clipId: string, audioData: AudioData, clipDurationUs: TimeUs): void {\n    this.audioL1Cache.putClipAudioData(clipId, audioData, clipDurationUs);\n  }\n\n  getClipPCM(clipId: string, startUs: TimeUs, endUs: TimeUs): Float32Array[] | null {\n    return this.audioL1Cache.getPCM(clipId, startUs, endUs);\n  }\n\n  getClipPCMWithMetadata(\n    clipId: string,\n    startUs: TimeUs,\n    endUs: TimeUs\n  ): { planes: Float32Array[]; sampleRate: number; numberOfChannels: number } | null {\n    return this.audioL1Cache.getPCMWithMetadata(clipId, startUs, endUs);\n  }\n\n  hasClipPCM(clipId: string): boolean {\n    return this.audioL1Cache.hasClipPCM(clipId);\n  }\n\n  resetAudioCache(): void {\n    this.audioL1Cache.reset();\n  }\n\n  clearClipAudioData(clipId: string): void {\n    this.audioL1Cache.clearClipPCM(clipId);\n  }\n\n  /**\n   * Get frame from L1 cache\n   * @param timeUs - Clip-relative timestamp (0-based)\n   * @param clipId - Clip identifier\n   */\n  getFrame(timeUs: TimeUs, clipId: string): RcFrame | null {\n    return this.videoL1Cache.get(timeUs, clipId);\n  }\n\n  /**\n   * Wait for frame to be available in cache\n   * @param timeUs - Clip-relative timestamp (0-based)\n   * @param clipId - Clip identifier\n   * @param options - Wait options (timeout, tolerance, etc.)\n   */\n  // waitForFrame(\n  //   timeUs: TimeUs,\n  //   clipId: string,\n  //   options: WaitForFrameOptions = {}\n  // ): Promise<WaitForFrameResult> {\n  //   const existing = this.videoL1Cache.get(timeUs, clipId);\n  //   if (existing) {\n  //     return Promise.resolve({ frame: existing, source: 'l1', timestampUs: timeUs, clipId });\n  //   }\n\n  //   const requestKey = this.makeRequestKey(clipId, timeUs);\n  //   const existingPromise = this.pendingFramePromises.get(requestKey);\n  //   if (existingPromise) {\n  //     return existingPromise;\n  //   }\n\n  //   const promise = new Promise<WaitForFrameResult>((resolve, reject) => {\n  //     const toleranceUs = Math.max(\n  //       options.toleranceUs ?? DEFAULT_WAIT_TOLERANCE_US,\n  //       DEFAULT_WAIT_TOLERANCE_US\n  //     );\n\n  //     const waiter: FrameWaiter = {\n  //       requestKey,\n  //       clipId,\n  //       targetTimeUs: timeUs,\n  //       resolve,\n  //       reject,\n  //       toleranceUs,\n  //     };\n\n  //     let waiters = this.frameWaiters.get(clipId);\n  //     if (!waiters) {\n  //       waiters = new Set();\n  //       this.frameWaiters.set(clipId, waiters);\n  //     }\n  //     waiters.add(waiter);\n\n  //     const signal = options.signal;\n  //     if (signal) {\n  //       const onAbort = (): void => {\n  //         this.removeWaiter(waiter);\n  //         this.cleanupWaiter(waiter);\n  //         reject(new DOMException('Render aborted', 'AbortError'));\n  //       };\n\n  //       if (signal.aborted) {\n  //         onAbort();\n  //         return;\n  //       }\n\n  //       signal.addEventListener('abort', onAbort, { once: true });\n  //       waiter.abortCleanup = () => {\n  //         signal.removeEventListener('abort', onAbort);\n  //       };\n  //     }\n\n  //     if (options.timeoutMs && options.timeoutMs > 0) {\n  //       waiter.timeoutId = setTimeout(() => {\n  //         this.removeWaiter(waiter);\n  //         this.cleanupWaiter(waiter);\n  //         reject(new Error('waitForFrame timeout'));\n  //       }, options.timeoutMs);\n  //     }\n  //   });\n\n  //   const trackedPromise = promise.finally(() => {\n  //     this.pendingFramePromises.delete(requestKey);\n  //   });\n\n  //   this.pendingFramePromises.set(requestKey, trackedPromise);\n  //   return trackedPromise;\n  // }\n\n  async invalidateClip(clipId: string): Promise<void> {\n    this.videoL1Cache.invalidateClip(clipId);\n    await this.l2Cache.invalidateClip(clipId);\n  }\n\n  /**\n   * Evict a clip from L1 cache\n   */\n  invalidateClipInL1(clipId: string): void {\n    this.videoL1Cache.invalidateClip(clipId);\n  }\n\n  /**\n   * Check if a clip is cached in L1\n   */\n  hasClipInL1(clipId: 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WaiterReplacedError(clipId));\n    }\n\n    return new Promise<boolean>((resolve, reject) => {\n      const waiter: ClipReadyWaiter = {\n        clipId,\n        minFrameCount,\n        startTimeUs,\n        currentCount: currentFrameCount,\n        resolve,\n        reject,\n      };\n\n      this.clipReadyWaiters.set(clipId, waiter);\n\n      if (options.timeoutMs && options.timeoutMs > 0) {\n        waiter.timeoutId = setTimeout(() => {\n          if (this.clipReadyWaiters.get(clipId) === waiter) {\n            this.clipReadyWaiters.delete(clipId);\n          }\n          resolve(false);\n        }, options.timeoutMs);\n      }\n    });\n  }\n\n  async clear(): Promise<void> {\n    this.videoL1Cache.clear();\n    await this.l2Cache.clear();\n  }\n\n  getMetadata() {\n    return {\n      l1: this.videoL1Cache.getMetadata(),\n      l2: this.l2Cache.getMetadata(),\n    };\n  }\n\n  /**\n   * Create read stream from L2 cache for export\n   */\n  async createL2ReadStream(\n    clipId: string,\n    track: 'video' | 'audio'\n  ): Promise<ReadableStream<EncodedVideoChunk | EncodedAudioChunk> | null> {\n    return this.l2Cache.createReadStream(clipId, track);\n  }\n\n  /**\n   * Check if clip is fully cached in L2\n   * Returns true only if the clip is marked as complete\n   */\n  async hasClipInL2(clipId: string, track: 'video' | 'audio'): Promise<boolean> {\n    const result = await this.l2Cache.hasCompleteClip(clipId, track);\n    return result;\n  }\n\n  /**\n   * Mark clip as complete in L2 cache\n   */\n  async markClipComplete(clipId: string, track: 'video' | 'audio'): Promise<void> {\n    await this.l2Cache.markComplete(clipId, track);\n  }\n\n  /**\n   * Get chunk metadata (decoderConfig) from L2 cache\n   */\n  async getL2Metadata(clipId: string, track: 'video' | 'audio'): Promise<any | null> {\n    return this.l2Cache.getClipMetadata(clipId, track);\n  }\n\n  /**\n   * List all cached projects\n   */\n  async listProjects(): Promise<\n    Array<{ projectId: string; totalBytes: number; clipCount: number; lastAccess: number }>\n  > {\n    return this.l2Cache.listProjects();\n  }\n\n  /**\n   * Clear all cache data for a specific project\n   */\n  async clearProject(projectId: string): Promise<void> {\n    return this.l2Cache.clearProject(projectId);\n  }\n\n  /**\n   * Get cache size for a specific project (in bytes)\n   */\n  async getProjectSize(projectId: string): Promise<number> {\n    return this.l2Cache.getProjectSize(projectId);\n  }\n\n  /**\n   * Check if incoming frame satisfies clip ready condition\n   * O(1) complexity - only checks single waiter and increments counter\n   */\n  private checkAndNotifyClipReady(clipId: string, frameTimestampUs: TimeUs): void {\n    const waiter = this.clipReadyWaiters.get(clipId);\n    if (!waiter) {\n      return;\n    }\n\n    // Count all frames if startTimeUs is 0 (buffering scenario)\n    // Otherwise only count frames at or after the target start time\n    const shouldCount = waiter.startTimeUs === 0 || frameTimestampUs >= waiter.startTimeUs;\n\n    if (shouldCount) {\n      waiter.currentCount++;\n\n      if (waiter.currentCount >= waiter.minFrameCount) {\n        if (waiter.timeoutId) {\n          clearTimeout(waiter.timeoutId);\n        }\n        waiter.resolve(true);\n        this.clipReadyWaiters.delete(clipId);\n      }\n    }\n  }\n\n  // private cleanupWaiter(waiter: FrameWaiter): void {\n  //   if (waiter.timeoutId) {\n  //     clearTimeout(waiter.timeoutId);\n  //     waiter.timeoutId = undefined;\n  //   }\n\n  //   if (waiter.abortCleanup) {\n  //     waiter.abortCleanup();\n  //     waiter.abortCleanup = undefined;\n  //   }\n  // }\n\n  // private removeWaiter(waiter: FrameWaiter): void {\n  //   const waiters = this.frameWaiters.get(waiter.clipId);\n  //   if (!waiters) return;\n\n  //   waiters.delete(waiter);\n  //   if (waiters.size === 0) {\n  //     this.frameWaiters.delete(waiter.clipId);\n  //   }\n  // }\n\n  // private 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+{"version":3,"file":"CacheManager.js","sources":["../../src/cache/CacheManager.ts"],"sourcesContent":["import type { TimeUs } from '../model/types';\nimport { RcFrame } from '../model';\nimport { VideoL1Cache } from './l1/VideoL1Cache';\nimport { L2Cache } from './l2/L2Cache';\nimport { MeframeEvent } from '../event/events';\nimport type { EventBus } from '../event/EventBus';\nimport type { EventPayloadMap } from '../event/events';\nimport { AudioL1Cache } from './l1/AudioL1Cache';\nimport { WaiterReplacedError } from '../utils/errors';\n\ninterface CacheManagerConfig {\n  l1: {\n    maxMemoryMB: number;\n    maxGOPs?: number;\n    gopIntervalUs?: number;\n  };\n  l2: {\n    maxSizeMB: number;\n    projectId: string;\n  };\n}\n\ninterface ClipReadyWaiter {\n  clipId: string;\n  minFrameCount: number;\n  startTimeUs: TimeUs;\n  currentCount: number;\n  resolve: (ready: boolean) => void;\n  reject: (reason?: unknown) => void;\n  timeoutId?: ReturnType<typeof setTimeout>;\n}\n\n/**\n * Simplified CacheManager for 2-Clip strategy\n *\n * Core features:\n * - L1 (VRAM) for composed VideoFrames\n * - L2 (IndexedDB/OPFS) for encoded chunks\n * - Clip-level cache management\n */\nexport class CacheManager {\n  private readonly videoL1Cache: VideoL1Cache;\n  private readonly audioL1Cache: AudioL1Cache;\n  readonly l2Cache: L2Cache;\n  private clipReadyWaiters = new Map<string, ClipReadyWaiter>();\n  private eventBus?: EventBus<EventPayloadMap>;\n\n  constructor(config: CacheManagerConfig, eventBus?: EventBus<EventPayloadMap>) {\n    this.videoL1Cache = new VideoL1Cache(config.l1);\n    this.l2Cache = new L2Cache(config.l2);\n    this.audioL1Cache = new AudioL1Cache();\n    this.eventBus = eventBus;\n  }\n\n  async init(): Promise<void> {\n    await this.l2Cache.init();\n  }\n\n  async receiveComposedFrames(\n    stream: ReadableStream<VideoFrame>,\n    params: {\n      clipId: string;\n      trackId: string;\n      fps: number;\n      clipStartUs?: TimeUs;\n      onFrame: (info: { clipId: string; timeUs: TimeUs }) => void;\n    }\n  ): Promise<void> {\n    const reader = stream.getReader();\n    const process = async (): Promise<void> => {\n      const { done, value } = await reader.read();\n      if (done) {\n        reader.releaseLock();\n        return;\n      }\n      if (value) {\n        const fps = params.fps > 0 ? 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dist/cache/l1/AudioL1Cache.d.ts

@@ -28,3 +28,3 @@ import { AudioMetadata, AudioSlot } from './types';
     flush(): void;
-    reset(): void;
+    clear(): void;
     setPlaybackRate(_rate: number): void;
@@ -31,0 +31,0 @@ setVolume(volume: number): void;

dist/cache/l1/AudioL1Cache.js

@@ -298,3 +298,3 @@ class AudioL1Cache {
   }
-  reset() {
+  clear() {
     this.flush();
@@ -315,3 +315,3 @@ this.clipPCM.clear();
   dispose() {
-    this.reset();
+    this.clear();
   }
@@ -318,0 +318,0 @@ applyGain(planes) {

dist/cache/l1/AudioL1Cache.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"AudioL1Cache.js","sources":["../../../src/cache/l1/AudioL1Cache.ts"],"sourcesContent":["import type { AudioMetadata, AudioSlot } from './types';\nimport type { TimeUs } from '../../model/types';\n\ninterface PCMClipEntry {\n  clipId: string;\n  sampleRate: number;\n  numberOfChannels: number;\n  planes: Float32Array[];\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  lastAccessedAt: number;\n}\n\nexport class AudioL1Cache {\n  private slots: AudioSlot[] = [];\n  private clipPCM = new Map<string, PCMClipEntry>();\n  private metadata: AudioMetadata = { sampleRate: 48_000, numberOfChannels: 2 };\n  private volume = 1;\n  private muted = false;\n  private maxClips = 20;\n\n  attachStream(stream: ReadableStream<AudioData>, metadata: AudioMetadata): void {\n    this.metadata = metadata;\n    const reader = stream.getReader();\n\n    const pump = async (): Promise<void> => {\n      const { done, value } = await reader.read();\n      if (done) {\n        reader.releaseLock();\n        return;\n      }\n\n      this.addAudio(value);\n      await pump();\n    };\n\n    pump().catch((error) => {\n      console.error('[AudioL1Cache] stream error', error);\n      reader.releaseLock();\n    });\n  }\n\n  putClipAudioData(clipId: string, audioData: AudioData, clipDurationUs: TimeUs): void {\n    const numberOfChannels = audioData.numberOfChannels ?? 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0;\n\n    // If we've already stored enough frames for the clip duration, skip\n    if (currentFrames >= maxFrames) {\n      return;\n    }\n\n    for (let channel = 0; channel < numberOfChannels; channel++) {\n      const existingPlane = entry.planes[channel];\n      const newPlane = planes[channel];\n      if (!existingPlane || !newPlane) continue;\n\n      // Calculate how many frames from newPlane we should actually append\n      const framesToAppend = Math.min(newPlane.length, maxFrames - currentFrames);\n\n      if (framesToAppend <= 0) {\n        continue;\n      }\n\n      const combined = new Float32Array(existingPlane.length + framesToAppend);\n      combined.set(existingPlane, 0);\n      combined.set(newPlane.subarray(0, framesToAppend), existingPlane.length);\n      entry.planes[channel] = combined;\n    }\n\n    entry.lastAccessedAt = Date.now();\n  }\n\n  getPCM(clipId: string, startUs: TimeUs, endUs: TimeUs): Float32Array[] | null {\n    const entry = this.clipPCM.get(clipId);\n    if (!entry) {\n      return null;\n    }\n\n    entry.lastAccessedAt = Date.now();\n\n    const offsetUs = Math.max(0, startUs - entry.startUs);\n\n    // Calculate actual stored duration based on actual frames, not expected durationUs\n    const actualStoredFrames = entry.planes[0]?.length ?? 0;\n    const actualStoredUs = (actualStoredFrames / entry.sampleRate) * 1_000_000;\n    const availableDurationUs = Math.max(0, actualStoredUs - offsetUs);\n\n    const requestedDurationUs = endUs - startUs;\n    const durationUs = Math.min(requestedDurationUs, availableDurationUs);\n\n    if (durationUs <= 0) {\n      return null;\n    }\n\n    const offsetFrames = Math.floor((offsetUs / 1_000_000) * entry.sampleRate);\n    const frameCount = Math.ceil((durationUs / 1_000_000) * entry.sampleRate);\n\n    const result: Float32Array[] = [];\n    for (let channel = 0; channel < entry.numberOfChannels; channel++) {\n      const plane = entry.planes[channel];\n      if (!plane) {\n        result.push(new Float32Array(frameCount));\n        continue;\n      }\n\n      const channelData = new Float32Array(frameCount);\n      const copyLength = Math.min(frameCount, plane.length - offsetFrames);\n      for (let i = 0; i < copyLength; i++) {\n        channelData[i] = plane[offsetFrames + i] ?? 0;\n      }\n      result.push(channelData);\n    }\n\n    return result;\n  }\n\n  getPCMWithMetadata(\n    clipId: string,\n    startUs: TimeUs,\n    endUs: TimeUs\n  ): { planes: Float32Array[]; sampleRate: number; numberOfChannels: number } | null {\n    const planes = this.getPCM(clipId, startUs, endUs);\n    if (!planes) {\n      return null;\n    }\n\n    const entry = this.clipPCM.get(clipId);\n    if (!entry) {\n      return null;\n    }\n\n    return {\n      planes,\n      sampleRate: entry.sampleRate,\n      numberOfChannels: entry.numberOfChannels,\n    };\n  }\n\n  hasClipPCM(clipId: string): boolean {\n    return this.clipPCM.has(clipId);\n  }\n\n  clearClipPCM(clipId: string): void {\n    this.clipPCM.delete(clipId);\n  }\n\n  private evictLRU(): void {\n    let oldestClipId: string | null = null;\n    let oldestTime = Date.now();\n\n    for (const [clipId, entry] of this.clipPCM) {\n      if (entry.lastAccessedAt < oldestTime) {\n        oldestTime = entry.lastAccessedAt;\n        oldestClipId = clipId;\n      }\n    }\n\n    if (oldestClipId) {\n      this.clipPCM.delete(oldestClipId);\n    }\n  }\n\n  private extractPlanesFromAudioData(\n    audioData: AudioData,\n    numberOfChannels: number,\n    numberOfFrames: number\n  ): Float32Array[] {\n    const planes: Float32Array[] = Array.from(\n      { length: numberOfChannels },\n      () => new Float32Array(numberOfFrames)\n    );\n\n    const toFloat = (value: number): number => value / 32768;\n\n    const fillInterleaved = (format: 'f32' | 's16'): boolean => {\n      const samples =\n        format === 'f32'\n          ? new Float32Array(numberOfFrames * numberOfChannels)\n          : new Int16Array(numberOfFrames * numberOfChannels);\n\n      try {\n        audioData.copyTo(samples, { format, planeIndex: 0 });\n      } catch {\n        return false;\n      }\n\n      for (let frame = 0; frame < numberOfFrames; frame += 1) {\n        const offset = frame * numberOfChannels;\n        for (let channel = 0; channel < numberOfChannels; channel += 1) {\n          const plane = planes[channel];\n          if (!plane) continue;\n          if (format === 'f32') {\n            plane[frame] = (samples as Float32Array)[offset + channel] ?? 0;\n          } else {\n            plane[frame] = toFloat((samples as Int16Array)[offset + channel] ?? 0);\n          }\n        }\n      }\n\n      return true;\n    };\n\n    const fillPlanar = (format: 'f32-planar' | 's16-planar'): boolean => {\n      try {\n        if (format === 'f32-planar') {\n          for (let channel = 0; channel < numberOfChannels; channel += 1) {\n            const plane = planes[channel];\n            if (!plane) continue;\n            audioData.copyTo(plane, { planeIndex: channel, format: 'f32-planar' });\n          }\n          return true;\n        }\n\n        const tmp = new Int16Array(numberOfFrames);\n        for (let channel = 0; channel < numberOfChannels; channel += 1) {\n          const plane = planes[channel];\n          if (!plane) continue;\n          audioData.copyTo(tmp, { planeIndex: channel, format: 's16-planar' as any });\n          for (let i = 0; i < numberOfFrames; i += 1) {\n            plane[i] = toFloat(tmp[i] ?? 0);\n          }\n        }\n        return true;\n      } catch {\n        return false;\n      }\n    };\n\n    const fillFallback = (): boolean => {\n      try {\n        for (let channel = 0; channel < numberOfChannels; channel += 1) {\n          const plane = planes[channel];\n          if (!plane) continue;\n          audioData.copyTo(plane, { planeIndex: channel });\n        }\n        return true;\n      } catch {\n        return false;\n      }\n    };\n\n    const reportedFormat = (audioData as any).format as string | undefined;\n    const attempts: Array<() => boolean> = [];\n    const scheduled = new Set<string>();\n\n    const scheduleAttempt = (token: string, attempt: () => boolean): void => {\n      if (!scheduled.has(token)) {\n        scheduled.add(token);\n        attempts.push(attempt);\n      }\n    };\n\n    if (reportedFormat) {\n      switch (reportedFormat) {\n        case 'f32':\n          scheduleAttempt('f32', () => fillInterleaved('f32'));\n          break;\n        case 's16':\n          scheduleAttempt('s16', () => fillInterleaved('s16'));\n          break;\n        case 'f32-planar':\n          scheduleAttempt('f32-planar', () => fillPlanar('f32-planar'));\n          break;\n        case 's16-planar':\n          scheduleAttempt('s16-planar', () => fillPlanar('s16-planar'));\n          break;\n        default:\n          break;\n      }\n    }\n\n    scheduleAttempt('f32', () => fillInterleaved('f32'));\n    scheduleAttempt('f32-planar', () => fillPlanar('f32-planar'));\n    scheduleAttempt('s16', () => fillInterleaved('s16'));\n    scheduleAttempt('s16-planar', () => fillPlanar('s16-planar'));\n\n    let filled = false;\n    for (const attempt of attempts) {\n      if (attempt()) {\n        filled = true;\n        break;\n      }\n    }\n\n    if (!filled) {\n      filled = fillFallback();\n    }\n\n    if (!filled) {\n      throw new Error('AudioL1Cache: unsupported AudioData format');\n    }\n\n    return planes;\n  }\n\n  addAudio(audio: AudioData): void {\n    const numberOfChannels = audio.numberOfChannels ?? this.metadata.numberOfChannels;\n    const numberOfFrames = audio.numberOfFrames ?? 0;\n\n    if (!numberOfChannels || !numberOfFrames) {\n      audio.close();\n      return;\n    }\n\n    if (audio.sampleRate && audio.sampleRate > 0 && audio.sampleRate !== this.metadata.sampleRate) {\n      this.metadata = { ...this.metadata, sampleRate: audio.sampleRate };\n    }\n\n    if (numberOfChannels !== this.metadata.numberOfChannels) {\n      this.metadata = { ...this.metadata, numberOfChannels };\n    }\n\n    const planes = this.extractPlanesFromAudioData(audio, numberOfChannels, numberOfFrames);\n\n    this.slots.push({\n      timestampUs: audio.timestamp ?? 0,\n      durationUs:\n        audio.duration ?? Math.round((numberOfFrames / this.metadata.sampleRate) * 1_000_000),\n      planes,\n    });\n\n    audio.close();\n  }\n\n  getClosest(timeUs: number): (AudioSlot & { metadata: AudioMetadata }) | null {\n    if (this.slots.length === 0) {\n      return null;\n    }\n\n    let closest: AudioSlot | null = null;\n    let minDelta = Number.MAX_SAFE_INTEGER;\n\n    for (const slot of this.slots) {\n      const start = slot.timestampUs;\n      const end = start + slot.durationUs;\n      if (timeUs >= start && timeUs <= end) {\n        closest = slot;\n        break;\n      }\n\n      const delta = Math.min(Math.abs(timeUs - start), Math.abs(timeUs - end));\n      if (delta < minDelta) {\n        closest = slot;\n        minDelta = delta;\n      }\n    }\n\n    if (!closest) {\n      return null;\n    }\n\n    return {\n      ...closest,\n      planes: this.applyGain(closest.planes),\n      metadata: this.metadata,\n    };\n  }\n\n  flush(): void {\n    this.slots = [];\n  }\n\n  reset(): 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+{"version":3,"file":"AudioL1Cache.js","sources":["../../../src/cache/l1/AudioL1Cache.ts"],"sourcesContent":["import type { AudioMetadata, AudioSlot } from './types';\nimport type { TimeUs } from '../../model/types';\n\ninterface PCMClipEntry {\n  clipId: string;\n  sampleRate: number;\n  numberOfChannels: number;\n  planes: Float32Array[];\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  lastAccessedAt: number;\n}\n\nexport class AudioL1Cache {\n  private slots: AudioSlot[] = [];\n  private clipPCM = new Map<string, PCMClipEntry>();\n  private metadata: AudioMetadata = { sampleRate: 48_000, numberOfChannels: 2 };\n  private volume = 1;\n  private muted = false;\n  private maxClips = 20;\n\n  attachStream(stream: ReadableStream<AudioData>, metadata: AudioMetadata): void {\n    this.metadata = metadata;\n    const reader = stream.getReader();\n\n    const pump = async (): Promise<void> => {\n      const { done, value } = await reader.read();\n      if (done) {\n        reader.releaseLock();\n        return;\n      }\n\n      this.addAudio(value);\n      await pump();\n    };\n\n    pump().catch((error) => {\n      console.error('[AudioL1Cache] stream error', error);\n      reader.releaseLock();\n    });\n  }\n\n  putClipAudioData(clipId: string, audioData: AudioData, clipDurationUs: TimeUs): void {\n    const numberOfChannels = audioData.numberOfChannels ?? 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dist/Meframe.d.ts

 import { MeframeConfig, ResolvedConfig, MeframeState, ExportOptions } from './types';
-import { CompositionModelData, CompositionPatch, TimeUs } from './model/types';
+import { CompositionModelData, CompositionPatch, SetCompositionModelOptions, TimeUs } from './model/types';
 import { PreviewHandle } from './controllers/types';
@@ -37,3 +37,3 @@ import { CompositionModel } from './model/CompositionModel';
      */
-    setCompositionModel(model: CompositionModel | CompositionModelData): Promise<void>;
+    setCompositionModel(model: CompositionModel | CompositionModelData, options?: SetCompositionModelOptions): Promise<void>;
     /**
@@ -40,0 +40,0 @@ * Apply a patch to the composition model

dist/Meframe.d.ts.map

@@ -1,1 +0,1 @@
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dist/Meframe.js

@@ -73,6 +73,12 @@ import { CompositionModel } from "./model/CompositionModel.js";
    */
-  async setCompositionModel(model) {
+  async setCompositionModel(model, options) {
     this.ensureNotDestroyed();
+    const { needExport = true } = options || {};
+    if (needExport) {
+      this.preRenderService?.start();
+    } else {
+      this.preRenderService?.stop();
+    }
     const compositionModel = model instanceof CompositionModel ? model : new CompositionModel(model);
-    await this.orchestrator.setCompositionModel(compositionModel);
+    await this.orchestrator.setCompositionModel(compositionModel, options);
     this.model = compositionModel;
@@ -79,0 +85,0 @@ this.setState("ready");

dist/Meframe.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"Meframe.js","sources":["../src/Meframe.ts"],"sourcesContent":["/**\n * Meframe - Main entry point for the media processing framework\n */\n\nimport type { MeframeConfig, ResolvedConfig, MeframeState, ExportOptions } from './types';\nimport type { CompositionModelData, CompositionPatch, TimeUs } from './model/types';\nimport type { PreviewHandle } from './controllers/types';\nimport type { Plugin } from './plugins/types';\nimport { CompositionModel } from './model/CompositionModel';\nimport { loadConfig } from './config';\nimport { Orchestrator } from './orchestrator/Orchestrator';\nimport { PlaybackController } from './controllers/PlaybackController';\nimport { PreRenderService } from './controllers/PreRenderService';\nimport { PluginManager } from './plugins/PluginManager';\nimport { EventBus } from './event/EventBus';\nimport { MeframeEvent, type EventPayloadMap } from './event/events';\n\nexport class Meframe {\n  /** Current state - managed internally via setState() */\n  state: MeframeState = 'idle';\n  /** Configuration - immutable after construction */\n  readonly config: ResolvedConfig;\n  /** Composition model - managed via setCompositionTree() */\n  model: CompositionModel | null = null;\n  /** Plugin manager for extensions */\n  readonly pluginManager: PluginManager;\n  /** Event bus for subscribing to Meframe events */\n  readonly events: Pick<EventBus<EventPayloadMap>, 'on' | 'off' | 'once'>;\n\n  private orchestrator: Orchestrator;\n  private eventBus: EventBus<EventPayloadMap>;\n  private playbackController: PlaybackController | null = null;\n  private preRenderService: PreRenderService | null = null;\n  private canvas?: HTMLCanvasElement | OffscreenCanvas;\n\n  private constructor(config: ResolvedConfig) {\n    this.config = config;\n    this.eventBus = new EventBus<EventPayloadMap>();\n    this.events = this.eventBus.asReadonly();\n    this.pluginManager = new PluginManager(this);\n\n    // Initialize orchestrator with configuration and shared eventBus\n    // Worker paths are passed via config\n    this.orchestrator = new Orchestrator({\n      projectId: config.global.projectId,\n      maxWorkers: (config as any).maxWorkers,\n      cacheConfig: config.cache as any,\n      eventBus: this.eventBus,\n      workerPath: config.global.workerPath,\n      workerExtension: config.global.workerExtension,\n    });\n  }\n\n  /**\n   * Create a new Meframe instance\n   */\n  static async create(config: MeframeConfig = {}): Promise<Meframe> {\n    // Load and resolve configuration using ConfigLoader\n    const resolvedConfig = await loadConfig({ override: config });\n    const instance = new Meframe(resolvedConfig);\n    await instance.initialize();\n    return instance;\n  }\n\n  /**\n   * Initialize the core engine\n   */\n  private async initialize(): Promise<void> {\n    this.setState('loading');\n\n    try {\n      // Initialize orchestrator (sets up workers and cache)\n      await this.orchestrator.initialize();\n\n      // Initialize plugins if provided\n      const plugins = (this.config as any).plugins;\n      if (plugins && Array.isArray(plugins)) {\n        for (const plugin of plugins) {\n          // Ensure plugin type matches the Plugin interface\n          if (plugin && typeof plugin === 'object' && 'name' in plugin && 'install' in plugin) {\n            this.pluginManager.register(plugin as Plugin);\n          }\n        }\n      }\n\n      this.setState('idle');\n    } catch (error) {\n      this.setState('error');\n      throw error;\n    }\n  }\n\n  /**\n   * Set the composition model\n   */\n  async setCompositionModel(model: CompositionModel | CompositionModelData): Promise<void> {\n    this.ensureNotDestroyed();\n\n    // Convert plain object to CompositionModel instance if needed\n    const compositionModel =\n      model instanceof CompositionModel ? model : new CompositionModel(model);\n\n    // Set the model in orchestrator\n    await this.orchestrator.setCompositionModel(compositionModel);\n    this.model = compositionModel;\n    this.setState('ready');\n    this.eventBus.emit(MeframeEvent.Ready, {\n      trackCount: model.tracks.length,\n      clipCount: model.tracks.reduce(\n        (acc: number, track: any) => acc + track.clips?.length || 0,\n        0\n      ),\n      durationUs: model.durationUs,\n    });\n  }\n\n  /**\n   * Apply a patch to the composition model\n   */\n  async applyPatch(patch: CompositionPatch): Promise<void> {\n    this.ensureNotDestroyed();\n\n    if (!this.model) {\n      throw new Error('No composition model set');\n    }\n\n    // Apply patch through orchestrator\n    await this.orchestrator.applyPatch(patch);\n\n    // Patch is applied to the model by orchestrator\n    this.model = this.orchestrator.compositionModel!;\n\n    this.preRenderService?.start();\n  }\n\n  /**\n   * Start preview and return a handle for control\n   */\n  startPreview(options?: {\n    canvas?: HTMLCanvasElement | OffscreenCanvas;\n    startUs?: TimeUs;\n  }): PreviewHandle {\n    this.ensureReady();\n\n    // Use provided canvas or the one from config\n    const canvas = options?.canvas || this.canvas;\n    if (!canvas) {\n      throw new Error('Canvas is required for preview');\n    }\n\n    // Store canvas for later use\n    this.canvas = canvas;\n\n    // Create playback controller\n    if (!this.playbackController) {\n      this.playbackController = new PlaybackController(this.orchestrator as any, this.eventBus, {\n        canvas,\n        startUs: options?.startUs,\n      });\n      this.playbackController.setAudioSession(this.orchestrator.audioSession);\n    }\n\n    // Start pre-render service for background caching\n    if (!this.preRenderService) {\n      this.preRenderService = new PreRenderService(this.orchestrator as any, this.events);\n      this.preRenderService.start();\n    }\n\n    // Connect playback controller to pre-render service\n    // Update pre-render position when playback position changes\n    this.playbackController.on(MeframeEvent.PlaybackTimeUpdate, (payload: any) => {\n      this.preRenderService?.updatePlaybackTime(payload.timeUs);\n    });\n\n    // Update playback active state\n    this.playbackController.on(MeframeEvent.PlaybackPlay, () => {\n      this.preRenderService?.setPlaybackActive(true);\n    });\n\n    this.playbackController.on(MeframeEvent.PlaybackPause, () => {\n      this.preRenderService?.setPlaybackActive(false);\n    });\n\n    this.playbackController.on(MeframeEvent.PlaybackStop, () => {\n      this.preRenderService?.setPlaybackActive(false);\n    });\n\n    // this.playbackController?.renderCurrentFrame(0);\n    this.orchestrator.renderFrame(0);\n\n    // Return preview handle\n    return this.playbackController;\n  }\n\n  /**\n   * Export the composition\n   * Uses L2 cache for fast export, muxes in main thread\n   */\n  async export(options: ExportOptions): Promise<Blob> {\n    this.ensureReady();\n    this.setState('exporting');\n\n    try {\n      const model = this.model;\n      if (!model) {\n        throw new Error('No composition model set');\n      }\n\n      // 1. Check L2 cache readiness\n      const readiness = await this.getExportReadiness();\n\n      if (!readiness.ready) {\n        // Emit preparing event\n        this.eventBus.emit(MeframeEvent.ExportPreparing, {\n          totalClips: readiness.totalClips,\n          cachedClips: readiness.cachedClips,\n          missingClips: readiness.missingClips,\n        });\n\n        // Ensure PreRenderService is started\n        if (!this.preRenderService) {\n          this.preRenderService = new PreRenderService(this.orchestrator as any, this.events);\n        }\n\n        // Create AbortController for timeout control\n        const abortController = new AbortController();\n        const timeoutMs = 5 * 60 * 1000; // 5 minutes\n        const timeoutId = setTimeout(() => {\n          abortController.abort();\n        }, timeoutMs);\n\n        try {\n          // Actively trigger missing clips L2 rendering\n          await this.preRenderService.ensureClipsInL2({\n            onProgress: (completed, total) => {\n              this.eventBus.emit(MeframeEvent.ExportProgress, {\n                progress: completed / total,\n                stage: 'preparing',\n                message: `Preparing cache: ${completed}/${total} clips`,\n              });\n            },\n            signal: abortController.signal,\n          });\n        } catch (error) {\n          if (error instanceof DOMException && error.name === 'AbortError') {\n            throw new Error(`Export preparation timeout after ${timeoutMs / 1000}s`);\n          }\n          throw error;\n        } finally {\n          clearTimeout(timeoutId);\n        }\n      }\n\n      // 2. Continue normal export flow\n      const width = options.width || (model as any).renderConfig?.width || 720;\n      const height = options.height || (model as any).renderConfig?.height || 1280;\n      const fps = options.fps || model.fps || 30;\n\n      this.eventBus.emit(MeframeEvent.ExportStart, {\n        format: options.format || 'mp4',\n        width,\n        height,\n        fps,\n        durationUs: model.durationUs,\n      });\n\n      // Delegate to orchestrator\n      const blob = await this.orchestrator.export(model, options);\n\n      this.setState('ready');\n      this.eventBus.emit(MeframeEvent.ExportComplete, {\n        size: blob.size,\n        durationMs: model.durationUs / 1000,\n        format: options.format || 'mp4',\n      });\n      this.eventBus.emit(MeframeEvent.ExportProgress, {\n        progress: 1,\n      });\n\n      return blob;\n    } catch (error) {\n      this.setState('error');\n      this.eventBus.emit(MeframeEvent.ExportError, {\n        error: error as Error,\n        stage: 'export',\n      });\n      throw error;\n    }\n  }\n\n  /**\n   * Check export readiness\n   * Returns coverage info for L2 cache\n   */\n  async getExportReadiness(): Promise<{\n    ready: boolean;\n    totalClips: number;\n    cachedClips: number;\n    missingClips: string[];\n    coverage: number;\n  }> {\n    if (!this.model) {\n      return {\n        ready: false,\n        totalClips: 0,\n        cachedClips: 0,\n        missingClips: [],\n        coverage: 0,\n      };\n    }\n\n    // Only check main track clips (attachments are already included)\n    const mainTrack = this.model.findTrack(this.model.mainTrackId);\n    const allClips = mainTrack?.clips ?? [];\n\n    const missingClips: string[] = [];\n    let cachedCount = 0;\n\n    for (const clip of allClips) {\n      const inL2 = await this.orchestrator.cacheManager.hasClipInL2(clip.id, 'video');\n      if (inL2) {\n        cachedCount++;\n      } else {\n        missingClips.push(clip.id);\n      }\n    }\n\n    return {\n      ready: missingClips.length === 0,\n      totalClips: allClips.length,\n      cachedClips: cachedCount,\n      missingClips,\n      coverage: allClips.length > 0 ? cachedCount / allClips.length : 0,\n    };\n  }\n\n  /**\n   * Get current playback time\n   */\n  getCurrentTime(): number {\n    return this.playbackController?.currentTimeUs || 0;\n  }\n\n  /**\n   * Clear all L1/L2 cache data\n   * Useful for debugging or forcing re-render\n   */\n  async clearCache(): Promise<void> {\n    this.ensureReady();\n\n    // Stop playback first\n    this.playbackController?.stop();\n\n    // Stop pre-render service\n    this.preRenderService?.stop();\n\n    // Clear cache through CacheManager\n    await this.orchestrator.cacheManager.clear();\n\n    console.log('[Meframe] Cache cleared successfully');\n  }\n\n  /**\n   * List all cached projects\n   */\n  async listCachedProjects(): Promise<\n    Array<{ projectId: string; totalBytes: number; clipCount: number; lastAccess: number }>\n  > {\n    return this.orchestrator.cacheManager.listProjects();\n  }\n\n  /**\n   * Clear cache for a specific project\n   */\n  async clearProjectCache(projectId: string): Promise<void> {\n    return this.orchestrator.cacheManager.clearProject(projectId);\n  }\n\n  /**\n   * Get cache size for a specific project (in bytes)\n   */\n  async getProjectCacheSize(projectId: string): Promise<number> {\n    return this.orchestrator.cacheManager.getProjectSize(projectId);\n  }\n\n  /**\n   * Clean up and destroy the instance\n   */\n  async dispose(): Promise<void> {\n    if (this.state === 'destroyed') return;\n\n    // Stop playback\n    this.playbackController?.stop();\n    this.playbackController?.dispose();\n    this.playbackController = null;\n\n    // Stop pre-render service\n    this.preRenderService?.stop();\n    this.preRenderService = null;\n\n    // Cleanup plugins\n    await this.pluginManager.disposeAll();\n\n    // Dispose orchestrator (stops workers and clears cache)\n    await this.orchestrator.dispose();\n\n    // Clear event bus\n    this.eventBus.dispose();\n\n    this.setState('destroyed');\n  }\n\n  /**\n   * Set internal state\n   */\n  private setState(state: MeframeState): void {\n    const oldState = this.state;\n    this.state = state;\n\n    // Emit state change event\n    // Use a generic event for now, can be added to MeframeEvent enum later\n    this.eventBus.emit('state:changed' as any, {\n      oldState,\n      newState: state,\n    });\n  }\n\n  /**\n   * Ensure the instance is not destroyed\n   */\n  private ensureNotDestroyed(): void {\n    if (this.state === 'destroyed') {\n      throw new Error('Core instance is 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destroyed');\n    }\n  }\n\n  /**\n   * Ensure the instance is ready\n   */\n  private ensureReady(): void {\n    this.ensureNotDestroyed();\n\n    if (!this.model) {\n      throw new Error('No composition model set');\n    }\n\n    if (this.state === 'loading' || this.state === 'idle') {\n      throw new Error('Core is not ready');\n    }\n  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dist/model/types.d.ts

@@ -230,3 +230,8 @@ export type TimeUs = number;
 export declare function hasAudioConfig(clip: Clip): clip is VideoClip | AudioClip;
+export interface SetCompositionModelOptions {
+    clearL1Cache?: boolean;
+    clearL2Cache?: boolean;
+    needExport?: boolean;
+}
 export {};
 //# sourceMappingURL=types.d.ts.map

dist/model/types.d.ts.map

@@ -1,1 +0,1 @@
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dist/model/types.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"types.js","sources":["../../src/model/types.ts"],"sourcesContent":["// All time values in microseconds (µs)\nexport type TimeUs = number; // 1 second = 1_000_000 µs\n\n// Helper constants\nexport const MICROSECONDS_PER_SECOND = 1_000_000;\nexport const MICROSECONDS_PER_MILLISECOND = 1_000;\n\n// ────── Root Object ──────\nexport interface CompositionModelData {\n  version: '1.0';\n  fps: 24 | 25 | 30 | 60;\n  durationUs: TimeUs;\n  tracks: Track[];\n  resources: Record<string, Resource>;\n\n  mainTrackId?: string;\n  renderConfig?: RenderConfig;\n\n  ext?: Record<string, unknown>;\n}\n\nexport interface RenderConfig {\n  width: number;\n  height: number;\n  backgroundColor?: string;\n}\n\n// ────── Track ──────\nexport interface Track {\n  id: string;\n  kind: 'video' | 'audio' | 'caption' | 'overlay' | 'fx';\n  clips: Clip[];\n\n  effects?: Effect[];\n  duckingRules?: DuckingRule[];\n}\n\n// ────── Clip ──────\ninterface BaseClip {\n  id: string;\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  trackId?: string;\n\n  trimStartUs?: TimeUs;\n  trimEndUs?: TimeUs;\n\n  effects?: Effect[];\n  attachments?: Attachment[];\n\n  transitionIn?: Transition;\n  transitionOut?: Transition;\n\n  metadata?: {\n    purpose?: 'caption' | 'overlay' | 'mask';\n    [key: string]: unknown;\n  };\n\n  // Internal: temporary field for tracking old resourceId during patch operations\n  oldResourceId?: string;\n}\n\nexport interface VideoClip extends BaseClip {\n  trackKind: 'video';\n  resourceId: string;\n\n  // Audio configuration for video's original sound\n  audioConfig?: {\n    volume?: number; // 0.0-1.0, default 1.0\n    muted?: boolean; // default false\n  };\n}\n\nexport interface AudioClip extends BaseClip {\n  trackKind: 'audio';\n  resourceId: string;\n\n  // Audio configuration\n  audioConfig?: {\n    volume?: number; // 0.0-1.0, default 1.0\n    muted?: boolean; // default false\n  };\n}\n\nexport interface CaptionClip extends BaseClip {\n  trackKind: 'caption';\n  text: string;\n  localeCode?: string;\n  fontTemplate?: string;\n  fontFamily?: string;\n  wordTimings?: Array<{\n    text: string;\n    startUs: TimeUs;\n    endUs: TimeUs;\n  }>;\n  animation?: {\n    type: 'none' | 'fade' | 'wordByWord' | 'characterKTV' | 'wordByWordFancy' | 'wordByWordSlideUp';\n    [key: string]: unknown;\n  };\n  letterCase?: 'upper' | 'lower' | 'none';\n}\n\nexport interface FxClip extends BaseClip {\n  trackKind: 'fx';\n}\n\nexport interface OverlayClip extends BaseClip {\n  trackKind: 'overlay';\n  resourceId: string;\n\n  // Optional overlay-specific config\n  opacity?: number; // 0.0-1.0, default 1.0\n}\n\nexport type Clip = VideoClip | AudioClip | CaptionClip | OverlayClip | FxClip;\n\n// ────── Resource ──────\nexport interface Resource {\n  id: string;\n  type: 'video' | 'image' | 'audio' | 'json' | string;\n  uri: string;\n  metadata?: Record<string, unknown>;\n  clipIds?: string[];\n  // Runtime state maintained by engine\n  state?: 'pending' | 'loading' | 'ready' | 'error';\n}\n\n// ────── Common Structures ──────\nexport interface Effect {\n  id: string;\n  effectType: 'filter' | 'lut' | 'animation' | string;\n  params?: Record<string, unknown>;\n}\n\n// Animation effect (effectType: 'animation')\nexport interface AnimationEffect extends Effect {\n  effectType: 'animation';\n  params: {\n    position: { x: number; y: number };\n    keyframes: AnimationKeyframe[];\n  };\n}\n\nexport interface AnimationKeyframe {\n  time: number; // Relative to clip.startUs (microseconds)\n  transform?: Transform2D;\n  opacity?: number;\n  easing?: 'linear' | 'ease-in' | 'ease-out' | 'ease-in-out';\n}\n\nexport interface Transform2D {\n  x?: number; // Relative offset\n  y?: number;\n  scaleX?: number;\n  scaleY?: number;\n  rotation?: number; // Degrees\n  anchorX?: number; // Rotation center x (0-1)\n  anchorY?: number; // Rotation center y (0-1)\n}\n\nexport interface Transition {\n  id: string;\n  transitionType: 'fade' | 'wipe' | 'slide' | string;\n  durationUs: TimeUs;\n  curve?: 'linear' | 'ease-in' | 'ease-out' | string;\n  params?: Record<string, unknown>;\n}\n\nexport interface Attachment {\n  id: string;\n  kind: 'caption' | 'overlay' | 'mask' | string;\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  data: Record<string, unknown>;\n}\n\nexport interface CaptionAttachmentData {\n  text: string;\n  localeCode?: string;\n  fontTemplate?: string;\n  fontFamily?: string;\n  wordTimings?: Array<{\n    text: string;\n    startUs: TimeUs;\n    endUs: TimeUs;\n  }>;\n  animation?: {\n    type: 'none' | 'fade' | 'wordByWord' | 'characterKTV' | 'wordByWordFancy' | 'wordByWordSlideUp';\n    [key: string]: unknown;\n  };\n  letterCase?: 'upper' | 'lower' | 'none';\n  overlayClipStartUs?: TimeUs;\n  mainClipStartUs?: TimeUs;\n}\n\nexport interface DuckingRule {\n  targetTrackKind: 'voice' | 'audio' | string;\n  ratio: number;\n  attackMs: number;\n  releaseMs: number;\n}\n\n// ────── Patch System ──────\nexport interface CompositionPatch {\n  operations: PatchOperation[];\n  metadata?: {\n    timestamp: number;\n    source?: string;\n    version?: string;\n  };\n}\n\nexport type PatchOperation =\n  | TrackOperation\n  | ClipOperation\n  | ResourceOperation\n  | AttachmentOperation\n  | TransitionOperation\n  | EffectOperation\n  | RenderConfigOperation;\n\n// Track operations\nexport interface TrackOperation {\n  type: 'addTrack' | 'updateTrack' | 'removeTrack';\n  trackId?: string;\n  track?: Partial<Track>;\n}\n\n// Clip operations\nexport interface ClipOperation {\n  type: 'addClip' | 'updateClip' | 'removeClip' | 'moveClip';\n  trackId: string;\n  clipId?: string;\n  clip?: Partial<Clip>;\n  targetTrackId?: string;\n  targetStartUs?: TimeUs;\n}\n\n// Resource operations\nexport interface ResourceOperation {\n  type: 'addResource' | 'updateResource' | 'removeResource';\n  resourceId: string;\n  resource?: Partial<Resource>;\n}\n\n// Attachment operations\nexport interface AttachmentOperation {\n  type: 'addAttachment' | 'updateAttachment' | 'removeAttachment';\n  trackId: string;\n  clipId: string;\n  attachmentId?: string;\n  attachment?: Partial<Attachment>;\n}\n\n// Transition operations\nexport interface TransitionOperation {\n  type: 'addTransition' | 'updateTransition' | 'removeTransition';\n  trackId: string;\n  clipId: string;\n  position: 'in' | 'out';\n  transition?: Partial<Transition>;\n}\n\n// Render config operations\nexport interface RenderConfigOperation {\n  type: 'updateRenderConfig';\n  renderConfig?: Partial<RenderConfig>;\n}\n\n// Effect operations\nexport interface EffectOperation {\n  type: 'addEffect' | 'updateEffect' | 'removeEffect';\n  targetType: 'track' | 'clip';\n  targetId: string;\n  effectId?: string;\n  effect?: Partial<Effect>;\n}\n\n// ────── Dirty Range ──────\nexport interface DirtyRange {\n  trackId: string;\n  startUs: TimeUs;\n  endUs: TimeUs;\n  reason: string;\n}\n\n// ────── Validation ──────\nexport interface ValidationError {\n  path: string;\n  message: string;\n  value: any;\n}\n\n// ────── Type Guards ──────\nexport function isVideoClip(clip: Clip): clip is VideoClip {\n  return clip.trackKind === 'video';\n}\n\nexport function isAudioClip(clip: Clip): clip is AudioClip {\n  return clip.trackKind === 'audio';\n}\n\nexport function isCaptionClip(clip: Clip): clip is CaptionClip {\n  return clip.trackKind === 'caption';\n}\n\nexport function isFxClip(clip: Clip): clip is FxClip {\n  return clip.trackKind === 'fx';\n}\n\nexport function hasResourceId(clip: Clip): clip is VideoClip | AudioClip {\n  return isVideoClip(clip) || isAudioClip(clip);\n}\n\nexport function hasAudioConfig(clip: Clip): clip is VideoClip | AudioClip {\n  return isVideoClip(clip) || isAudioClip(clip);\n}\n"],"names":[],"mappings":"AAsSO,SAAS,YAAY,MAA+B;AACzD,SAAO,KAAK,cAAc;AAC5B;AAEO,SAAS,YAAY,MAA+B;AACzD,SAAO,KAAK,cAAc;AAC5B;AAUO,SAAS,cAAc,MAA2C;AACvE,SAAO,YAAY,IAAI,KAAK,YAAY,IAAI;AAC9C;AAEO,SAAS,eAAe,MAA2C;AACxE,SAAO,YAAY,IAAI,KAAK,YAAY,IAAI;AAC9C;"}
+{"version":3,"file":"types.js","sources":["../../src/model/types.ts"],"sourcesContent":["// All time values in microseconds (µs)\nexport type TimeUs = number; // 1 second = 1_000_000 µs\n\n// Helper constants\nexport const MICROSECONDS_PER_SECOND = 1_000_000;\nexport const MICROSECONDS_PER_MILLISECOND = 1_000;\n\n// ────── Root Object ──────\nexport interface CompositionModelData {\n  version: '1.0';\n  fps: 24 | 25 | 30 | 60;\n  durationUs: TimeUs;\n  tracks: Track[];\n  resources: Record<string, Resource>;\n\n  mainTrackId?: string;\n  renderConfig?: RenderConfig;\n\n  ext?: Record<string, unknown>;\n}\n\nexport interface RenderConfig {\n  width: number;\n  height: number;\n  backgroundColor?: string;\n}\n\n// ────── Track ──────\nexport interface Track {\n  id: string;\n  kind: 'video' | 'audio' | 'caption' | 'overlay' | 'fx';\n  clips: Clip[];\n\n  effects?: Effect[];\n  duckingRules?: DuckingRule[];\n}\n\n// ────── Clip ──────\ninterface BaseClip {\n  id: string;\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  trackId?: string;\n\n  trimStartUs?: TimeUs;\n  trimEndUs?: TimeUs;\n\n  effects?: Effect[];\n  attachments?: Attachment[];\n\n  transitionIn?: Transition;\n  transitionOut?: Transition;\n\n  metadata?: {\n    purpose?: 'caption' | 'overlay' | 'mask';\n    [key: string]: unknown;\n  };\n\n  // Internal: temporary field for tracking old resourceId during patch operations\n  oldResourceId?: string;\n}\n\nexport interface VideoClip extends BaseClip {\n  trackKind: 'video';\n  resourceId: string;\n\n  // Audio configuration for video's original sound\n  audioConfig?: {\n    volume?: number; // 0.0-1.0, default 1.0\n    muted?: boolean; // default false\n  };\n}\n\nexport interface AudioClip extends BaseClip {\n  trackKind: 'audio';\n  resourceId: string;\n\n  // Audio configuration\n  audioConfig?: {\n    volume?: number; // 0.0-1.0, default 1.0\n    muted?: boolean; // default false\n  };\n}\n\nexport interface CaptionClip extends BaseClip {\n  trackKind: 'caption';\n  text: string;\n  localeCode?: string;\n  fontTemplate?: string;\n  fontFamily?: string;\n  wordTimings?: Array<{\n    text: string;\n    startUs: TimeUs;\n    endUs: TimeUs;\n  }>;\n  animation?: {\n    type: 'none' | 'fade' | 'wordByWord' | 'characterKTV' | 'wordByWordFancy' | 'wordByWordSlideUp';\n    [key: string]: unknown;\n  };\n  letterCase?: 'upper' | 'lower' | 'none';\n}\n\nexport interface FxClip extends BaseClip {\n  trackKind: 'fx';\n}\n\nexport interface OverlayClip extends BaseClip {\n  trackKind: 'overlay';\n  resourceId: string;\n\n  // Optional overlay-specific config\n  opacity?: number; // 0.0-1.0, default 1.0\n}\n\nexport type Clip = VideoClip | AudioClip | CaptionClip | OverlayClip | FxClip;\n\n// ────── Resource ──────\nexport interface Resource {\n  id: string;\n  type: 'video' | 'image' | 'audio' | 'json' | string;\n  uri: string;\n  metadata?: Record<string, unknown>;\n  clipIds?: string[];\n  // Runtime state maintained by engine\n  state?: 'pending' | 'loading' | 'ready' | 'error';\n}\n\n// ────── Common Structures ──────\nexport interface Effect {\n  id: string;\n  effectType: 'filter' | 'lut' | 'animation' | string;\n  params?: Record<string, unknown>;\n}\n\n// Animation effect (effectType: 'animation')\nexport interface AnimationEffect extends Effect {\n  effectType: 'animation';\n  params: {\n    position: { x: number; y: number };\n    keyframes: AnimationKeyframe[];\n  };\n}\n\nexport interface AnimationKeyframe {\n  time: number; // Relative to clip.startUs (microseconds)\n  transform?: Transform2D;\n  opacity?: number;\n  easing?: 'linear' | 'ease-in' | 'ease-out' | 'ease-in-out';\n}\n\nexport interface Transform2D {\n  x?: number; // Relative offset\n  y?: number;\n  scaleX?: number;\n  scaleY?: number;\n  rotation?: number; // Degrees\n  anchorX?: number; // Rotation center x (0-1)\n  anchorY?: number; // Rotation center y (0-1)\n}\n\nexport interface Transition {\n  id: string;\n  transitionType: 'fade' | 'wipe' | 'slide' | string;\n  durationUs: TimeUs;\n  curve?: 'linear' | 'ease-in' | 'ease-out' | string;\n  params?: Record<string, unknown>;\n}\n\nexport interface Attachment {\n  id: string;\n  kind: 'caption' | 'overlay' | 'mask' | string;\n  startUs: TimeUs;\n  durationUs: TimeUs;\n  data: Record<string, unknown>;\n}\n\nexport interface CaptionAttachmentData {\n  text: string;\n  localeCode?: string;\n  fontTemplate?: string;\n  fontFamily?: string;\n  wordTimings?: Array<{\n    text: string;\n    startUs: TimeUs;\n    endUs: TimeUs;\n  }>;\n  animation?: {\n    type: 'none' | 'fade' | 'wordByWord' | 'characterKTV' | 'wordByWordFancy' | 'wordByWordSlideUp';\n    [key: string]: unknown;\n  };\n  letterCase?: 'upper' | 'lower' | 'none';\n  overlayClipStartUs?: TimeUs;\n  mainClipStartUs?: TimeUs;\n}\n\nexport interface DuckingRule {\n  targetTrackKind: 'voice' | 'audio' | string;\n  ratio: number;\n  attackMs: number;\n  releaseMs: number;\n}\n\n// ────── Patch System ──────\nexport interface CompositionPatch {\n  operations: PatchOperation[];\n  metadata?: {\n    timestamp: number;\n    source?: string;\n    version?: string;\n  };\n}\n\nexport type PatchOperation =\n  | TrackOperation\n  | ClipOperation\n  | ResourceOperation\n  | AttachmentOperation\n  | TransitionOperation\n  | EffectOperation\n  | RenderConfigOperation;\n\n// Track operations\nexport interface TrackOperation {\n  type: 'addTrack' | 'updateTrack' | 'removeTrack';\n  trackId?: string;\n  track?: Partial<Track>;\n}\n\n// Clip operations\nexport interface ClipOperation {\n  type: 'addClip' | 'updateClip' | 'removeClip' | 'moveClip';\n  trackId: string;\n  clipId?: string;\n  clip?: Partial<Clip>;\n  targetTrackId?: string;\n  targetStartUs?: TimeUs;\n}\n\n// Resource operations\nexport interface ResourceOperation {\n  type: 'addResource' | 'updateResource' | 'removeResource';\n  resourceId: string;\n  resource?: Partial<Resource>;\n}\n\n// Attachment operations\nexport interface AttachmentOperation {\n  type: 'addAttachment' | 'updateAttachment' | 'removeAttachment';\n  trackId: string;\n  clipId: string;\n  attachmentId?: string;\n  attachment?: Partial<Attachment>;\n}\n\n// Transition operations\nexport interface TransitionOperation {\n  type: 'addTransition' | 'updateTransition' | 'removeTransition';\n  trackId: string;\n  clipId: string;\n  position: 'in' | 'out';\n  transition?: Partial<Transition>;\n}\n\n// Render config operations\nexport interface RenderConfigOperation {\n  type: 'updateRenderConfig';\n  renderConfig?: Partial<RenderConfig>;\n}\n\n// Effect operations\nexport interface EffectOperation {\n  type: 'addEffect' | 'updateEffect' | 'removeEffect';\n  targetType: 'track' | 'clip';\n  targetId: string;\n  effectId?: string;\n  effect?: Partial<Effect>;\n}\n\n// ────── Dirty Range ──────\nexport interface DirtyRange {\n  trackId: string;\n  startUs: TimeUs;\n  endUs: TimeUs;\n  reason: string;\n}\n\n// ────── Validation ──────\nexport interface ValidationError {\n  path: string;\n  message: string;\n  value: any;\n}\n\n// ────── Type Guards ──────\nexport function isVideoClip(clip: Clip): clip is VideoClip {\n  return clip.trackKind === 'video';\n}\n\nexport function isAudioClip(clip: Clip): clip is AudioClip {\n  return clip.trackKind === 'audio';\n}\n\nexport function isCaptionClip(clip: Clip): clip is CaptionClip {\n  return clip.trackKind === 'caption';\n}\n\nexport function isFxClip(clip: Clip): clip is FxClip {\n  return clip.trackKind === 'fx';\n}\n\nexport function hasResourceId(clip: Clip): clip is VideoClip | AudioClip {\n  return isVideoClip(clip) || isAudioClip(clip);\n}\n\nexport function hasAudioConfig(clip: Clip): clip is VideoClip | AudioClip {\n  return isVideoClip(clip) || isAudioClip(clip);\n}\n\nexport interface SetCompositionModelOptions {\n  clearL1Cache?: boolean;\n  clearL2Cache?: boolean;\n  needExport?: boolean;\n}\n"],"names":[],"mappings":"AAsSO,SAAS,YAAY,MAA+B;AACzD,SAAO,KAAK,cAAc;AAC5B;AAEO,SAAS,YAAY,MAA+B;AACzD,SAAO,KAAK,cAAc;AAC5B;AAUO,SAAS,cAAc,MAA2C;AACvE,SAAO,YAAY,IAAI,KAAK,YAAY,IAAI;AAC9C;AAEO,SAAS,eAAe,MAA2C;AACxE,SAAO,YAAY,IAAI,KAAK,YAAY,IAAI;AAC9C;"}

dist/orchestrator/Orchestrator.d.ts

@@ -8,2 +8,3 @@ import { EventBus } from '../event/EventBus';
 import { CompositionModel, CompositionPatch, TimeUs, RcFrame } from '../model';
+import { SetCompositionModelOptions } from '../model/types';
 import { EventPayloadMap } from '../event/events';
@@ -38,3 +39,3 @@ import { CompositionPlanner } from './CompositionPlanner';
     once<K extends keyof EventPayloadMap>(event: K, handler: (payload: EventPayloadMap[K]) => void): void;
-    setCompositionModel(model: CompositionModel): Promise<void>;
+    setCompositionModel(model: CompositionModel, options?: SetCompositionModelOptions): Promise<void>;
     applyPatch(patch: CompositionPatch): Promise<void>;
@@ -41,0 +42,0 @@ private handleResourceStateChange;

dist/orchestrator/Orchestrator.d.ts.map

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dist/orchestrator/Orchestrator.js

@@ -123,3 +123,10 @@ import { EventBus } from "../event/EventBus.js";
   }
-  async setCompositionModel(model) {
+  async setCompositionModel(model, options) {
+    const { clearL1Cache = true, clearL2Cache = false } = options || {};
+    if (clearL1Cache) {
+      this.cacheManager.clearL1Cache();
+    }
+    if (clearL2Cache) {
+      await this.cacheManager.clearL2Cache();
+    }
     this.compositionModel = model;
@@ -126,0 +133,0 @@ this.planner.setModel(model);

dist/orchestrator/Orchestrator.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"Orchestrator.js","sources":["../../src/orchestrator/Orchestrator.ts"],"sourcesContent":["import { EventBus } from '../event/EventBus';\nimport { WorkerPool } from '../worker/WorkerPool';\nimport { applyPatch as applyModelPatch } from '../model/patch';\nimport { ResourceConflictError, ResourceLoader } from '../stages/load/ResourceLoader';\nimport { CacheManager } from '../cache/CacheManager';\nimport { ConfigLoader } from '../config/ConfigLoader';\nimport type { IOrchestrator, OrchestratorConfig, RenderFrameOptions } from './types';\nimport { WorkerStatus, WorkerType } from '../worker/types';\nimport { CompositionModel, CompositionPatch, Resource, TimeUs, RcFrame, Clip } from '../model';\nimport { hasResourceId } from '../model/types';\nimport { MeframeEvent, type EventPayloadMap } from '../event/events';\nimport { CompositionPlanner } from './CompositionPlanner';\nimport { VideoClipSession } from './VideoClipSession';\nimport { ClipSessionManager } from './ClipSessionManager';\nimport { GlobalAudioSession } from './GlobalAudioSession';\nimport { MuxManager } from '../stages/mux/MuxManager';\nimport { ExportOptions } from '@/types';\nimport { VideoChunkDecoder } from '../stages/decode/VideoChunkDecoder';\nimport { quantizeTimestampToFrame } from '../utils/time-utils';\n\nexport class Orchestrator implements IOrchestrator {\n  workers: WorkerPool;\n  eventBus: EventBus<EventPayloadMap>;\n  compositionModel: CompositionModel | null = null;\n  resourceLoader: ResourceLoader;\n  cacheManager: CacheManager;\n  planner: CompositionPlanner;\n  audioSession: GlobalAudioSession;\n  muxManager: MuxManager;\n\n  private activeClips = new Set<string>();\n  private isInitialized = false;\n  private config = ConfigLoader.getInstance().getConfig();\n  private clipSessionManager: ClipSessionManager;\n  private currentClipId: string | null = null;\n  private ensureCacheDebounceTimer: number | null = null;\n  private readonly ensureCacheDebounceDelay = 150;\n  readonly events: Pick<EventBus<EventPayloadMap>, 'on' | 'off' | 'once'>;\n\n  constructor(config: OrchestratorConfig) {\n    // Use provided eventBus or create a new one\n    this.eventBus = config.eventBus || new EventBus<EventPayloadMap>();\n    this.events = this.eventBus.asReadonly();\n\n    // Initialize config first\n    this.config = ConfigLoader.getInstance().getConfig();\n\n    const workerConfigs = this.buildWorkerConfigs();\n\n    // Initialize WorkerPool with worker path from config\n    this.workers = new WorkerPool({\n      eventBus: this.eventBus,\n      workerConfigs,\n      workerPath: config.workerPath,\n      workerExtension: config.workerExtension,\n    });\n\n    this.resourceLoader = new ResourceLoader({\n      orchestrator: this as any,\n      eventBus: this.eventBus,\n      config: {\n        maxConcurrent: config.maxWorkers || (this.config.load as any)?.retry?.maxAttempts || 4,\n      },\n      onStateChange: (resourceId, state) => this.handleResourceStateChange(resourceId, state),\n    });\n\n    this.planner = new CompositionPlanner();\n\n    const cacheConfig = config.cacheConfig || this.config.cache;\n    this.cacheManager = new CacheManager(\n      {\n        l1: {\n          maxMemoryMB:\n            (cacheConfig as any)?.l1Size || (cacheConfig as any)?.l1?.maxMemoryMB || 1024,\n          maxGOPs: (this.config.decode as any)?.video?.maxGOPs || 4,\n        },\n        l2: {\n          maxSizeMB: (cacheConfig as any)?.l2Size || (cacheConfig as any)?.l2?.maxSizeMB || 2048,\n          projectId: config.projectId || this.config.global.projectId || 'default',\n        },\n      },\n      this.eventBus\n    );\n\n    this.clipSessionManager = new ClipSessionManager({\n      maxConcurrent: 2,\n      factory: {\n        createSession: (clipId) => this.createSession(clipId),\n      },\n      cacheManager: this.cacheManager,\n    });\n\n    this.audioSession = new GlobalAudioSession({\n      cacheManager: this.cacheManager,\n      workers: this.workers,\n      resourceLoader: this.resourceLoader,\n      eventBus: this.eventBus,\n      getModel: () => this.compositionModel,\n      buildWorkerConfigs: () => this.buildWorkerConfigs(),\n    });\n\n    this.muxManager = new MuxManager(\n      this.cacheManager,\n      this.audioSession,\n      this.config.encode.audio as AudioEncoderConfig\n    );\n  }\n\n  get workerStatus(): WorkerStatus {\n    const status = this.workers.status;\n    const result: WorkerStatus = {} as WorkerStatus;\n\n    const workerTypes: WorkerType[] = [\n      'videoDemux',\n      'audioDemux',\n      'videoDecode',\n      'audioDecode',\n      'videoCompose',\n      'audioCompose',\n      'videoEncode',\n    ];\n\n    for (const type of workerTypes) {\n      result[type] = status[type] || {\n        state: 'idle',\n        taskCount: 0,\n      };\n    }\n\n    return result;\n  }\n\n  async initialize(): Promise<void> {\n    if (this.isInitialized) return;\n\n    await this.cacheManager.init();\n\n    this.isInitialized = true;\n  }\n\n  // Event methods - forward to eventBus\n  on<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.on(event, handler);\n  }\n\n  off<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.off(event, handler);\n  }\n\n  once<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.once(event, handler);\n  }\n\n  async setCompositionModel(model: CompositionModel): Promise<void> {\n    this.compositionModel = model;\n    this.planner.setModel(model);\n    this.currentClipId = null;\n\n    this.eventBus.emit(MeframeEvent.ModelSet, model);\n\n    this.eventBus.emit(MeframeEvent.CompositionUpdated, {\n      trackCount: model.tracks.length,\n      clipCount: model.tracks.reduce((acc: number, track: any) => acc + track.clips.length, 0),\n      durationUs: model.durationUs,\n    });\n\n    await this.audioSession.activateAllAudioClips();\n  }\n\n  async applyPatch(patch: CompositionPatch): Promise<void> {\n    if (!this.compositionModel) {\n      throw new Error('No composition model set');\n    }\n\n    // Apply patch and get affected clip IDs (simplified for 2-Clip strategy)\n    // Note: addTrack/removeTrack already call buildIndexes() in patch.ts\n    const affectedClipIds = applyModelPatch(this.compositionModel, patch);\n    const clipUpdates = this.planner.applyPatch(patch, affectedClipIds);\n    this.eventBus.emit(MeframeEvent.PatchApplied, {\n      operations: patch.operations.length,\n      affectedClips: Array.from(affectedClipIds),\n    });\n\n    // Process clip updates\n    for (const update of clipUpdates) {\n      if (update.type === 'remove') {\n        this.activeClips.delete(update.clipId);\n      }\n\n      this.cacheManager.invalidateClip(update.clipId);\n      await this.clipSessionManager.handlePlannerUpdate(update.clipId, update);\n    }\n\n    // Reactivate updated audio clips\n    const reactivatedAudioClips: string[] = [];\n    const reactivatedVideoClips: string[] = [];\n    for (const clipId of affectedClipIds) {\n      const clip = this.compositionModel.findClip(clipId);\n      if (clip?.trackKind === 'audio') {\n        await this.audioSession.deactivateClip(clipId);\n        reactivatedAudioClips.push(clipId);\n      } else if (clip?.trackKind === 'video') {\n        // Video clip audio will be restarted via VideoClipSession pipeline restart\n        reactivatedVideoClips.push(clipId);\n      }\n    }\n\n    // Activate all audio clips (including reactivated ones)\n    await this.audioSession.activateAllAudioClips();\n\n    // Restart playback for affected clips (give pipeline time to decode first frame)\n    const allReactivatedClips = [...reactivatedAudioClips, ...reactivatedVideoClips];\n    if (allReactivatedClips.length > 0) {\n      setTimeout(() => {\n        for (const clipId of allReactivatedClips) {\n          this.audioSession.restartPlayingClip(clipId);\n        }\n      }, 150);\n    }\n  }\n\n  private handleResourceStateChange(resourceId: string, state: Resource['state']): void {\n    if (!this.compositionModel) {\n      return;\n    }\n\n    this.compositionModel.updateResourceState(resourceId, state ?? 'pending');\n\n    if (state !== 'ready') {\n      return;\n    }\n\n    const resource = this.compositionModel.getResource(resourceId);\n    if (!resource) {\n      return;\n    }\n\n    // Main video/audio resources: data will flow naturally into pipeline\n    if (resource.type === 'video' || resource.type === 'audio') {\n      return;\n    }\n\n    // Attachment resources (fonts, images): update instructions for active clips\n    const clipIds = this.compositionModel.getClipIdsByResourceId(resourceId);\n    for (const clipId of clipIds) {\n      // Only update active clips (in 2-Clip window)\n      if (!this.clipSessionManager.isClipActive(clipId)) {\n        continue;\n      }\n\n      const clip = this.compositionModel.findClip(clipId);\n      if (!clip) {\n        continue;\n      }\n\n      // Rebuild instructions with updated resource status\n      const instructions = this.planner.getInstructions(clipId);\n      if (!instructions) {\n        continue;\n      }\n\n      // Send updated instructions to worker (no pipeline restart needed)\n      const session = this.clipSessionManager.getSession(clipId);\n      const composeWorker = session?.composeWorker;\n      if (composeWorker) {\n        composeWorker.send('install_instructions', instructions);\n      }\n    }\n  }\n\n  async restartWorker(type: WorkerType, clipId?: string): Promise<void> {\n    const clipLocalTypes: WorkerType[] = [\n      'videoDemux',\n      'audioDemux',\n      'videoDecode',\n      'audioDecode',\n      'videoCompose',\n      'videoEncode',\n    ];\n\n    if (clipLocalTypes.includes(type) && !clipId) {\n      throw new Error(`clipId required for restarting ${type} worker`);\n    }\n\n    this.workers.terminate(type, clipId);\n    const worker = await this.workers.getOrCreate(type, clipId);\n\n    this.eventBus.emit(MeframeEvent.WorkerRestarted, {\n      type,\n      workerId: worker.getWorkerId(),\n      reason: 'Manual restart',\n    });\n\n    if (clipId) {\n      const session = this.clipSessionManager.getSession(clipId);\n      if (session) {\n        await session.activate();\n      }\n    }\n  }\n\n  async renderFrame(timeUs: TimeUs, options?: RenderFrameOptions): Promise<RcFrame | null> {\n    const signal = options?.signal;\n    const immediate = options?.immediate ?? true;\n\n    if (!this.compositionModel) {\n      throw new Error('No composition model set');\n    }\n\n    const clip = this.compositionModel.getClipsAtTime(timeUs, this.compositionModel.mainTrackId)[0];\n    if (!clip) {\n      return null;\n    }\n\n    // Detect clip change and proactively ensure cache for current/next\n    if (this.currentClipId !== clip.id) {\n      this.currentClipId = clip.id;\n      void this.ensureClipCache(timeUs, immediate);\n    }\n\n    // Calculate clip-relative time for cache lookup (global time - clip start time)\n    let relativeTimeUs = options?.relativeTimeUs ?? timeUs - clip.startUs;\n\n    // Quantize to frame boundary to handle timestamp precision issues\n    relativeTimeUs = quantizeTimestampToFrame(relativeTimeUs, 0, this.compositionModel.fps);\n\n    // Clamp to clip duration to handle edge cases where quantization pushes beyond clip end\n    // This can happen when clip duration is not exactly aligned to frame boundaries\n    relativeTimeUs = Math.min(relativeTimeUs, clip.durationUs - 1);\n\n    const cachedFrame = this.cacheManager.getFrame(relativeTimeUs, clip.id);\n    if (cachedFrame) {\n      this.eventBus.emit(MeframeEvent.CacheHit, {\n        timeUs,\n        level: 'L1',\n        key: `${clip.id}-${relativeTimeUs}`,\n      });\n      return cachedFrame;\n    }\n\n    this.eventBus.emit(MeframeEvent.CacheMiss, {\n      timeUs,\n      level: 'L1',\n      key: `${clip.id}-${relativeTimeUs}`,\n    });\n\n    if (signal?.aborted) {\n      throw new DOMException('Render aborted', 'AbortError');\n    }\n\n    // L1 miss - try decode from L2\n    const l2Frame = await this.decodeFromL2(relativeTimeUs, clip);\n    if (l2Frame) {\n      // If we are serving video from L2, opportunistically ensure audio from L2 as well\n      void this.ensureAudioFromL2(clip.id);\n      return l2Frame;\n    }\n\n    return null;\n  }\n\n  private async ensureAudioFromL2(clipId: string): Promise<void> {\n    try {\n      // Skip if PCM already present\n      if (this.cacheManager.hasClipPCM(clipId)) {\n        return;\n      }\n      // Check if L2 has encoded audio for this clip\n      const hasAudio = await this.cacheManager.hasClipInL2(clipId, 'audio');\n      if (!hasAudio) return;\n      // Decode from L2 into PCM cache (non-blocking for render)\n      await this.audioSession.ensureClipAudioFromL2(clipId);\n    } catch (error) {\n      console.warn('[Orchestrator] ensureAudioFromL2IfNeeded error:', error);\n    }\n  }\n\n  // TODO: move to @ClipSessionManager\n  private async decodeFromL2(timeUs: TimeUs, clip: Clip): Promise<RcFrame | null> {\n    const { id, trackId, startUs } = clip;\n    const [chunkStream, metadata] = await Promise.all([\n      this.cacheManager.l2Cache.createReadStream(id, 'video'),\n      this.cacheManager.l2Cache.getClipMetadata(id, 'video'),\n    ]);\n\n    if (!chunkStream || !metadata?.codec) {\n      return null;\n    }\n\n    const decoder = new VideoChunkDecoder(`l2-temp-${id}`, {\n      codec: metadata.codec,\n      width: metadata.codedWidth,\n      height: metadata.codedHeight,\n      description: metadata.description,\n      hardwareAcceleration: metadata.hardwareAcceleration || 'no-preference',\n      thread: 'main',\n    });\n\n    try {\n      const decodeStream = chunkStream.pipeThrough(decoder.createStream());\n\n      let targetFrame: RcFrame | null = null;\n\n      await this.cacheManager.receiveComposedFrames(decodeStream, {\n        clipId: id,\n        trackId: trackId || this.compositionModel?.mainTrackId || 'main',\n        fps: this.compositionModel?.fps ?? 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sessionId;\n    const clip = this.compositionModel?.findClip(clipId);\n    if (!clip) {\n      throw new Error(`Clip ${clipId} not found`);\n    }\n\n    const session = await VideoClipSession.create({\n      clipId,\n      sessionId,\n      forL2Only: options?.forL2Only ?? false,\n      planner: this.planner,\n      workerPool: this.workers,\n      cacheManager: this.cacheManager,\n      compositionModel: this.compositionModel!,\n      workerConfigs: this.buildWorkerConfigs(),\n      resourceLoader: this.resourceLoader,\n      callbacks: {\n        onComposedStreamReady: async (stream, fps) => {\n          // Only preview channel calls this (L2 sends directly to encode worker)\n          await this.cacheManager.receiveComposedFrames(stream, {\n            clipId: clipId,\n            trackId: this.compositionModel!.mainTrackId,\n            fps,\n            clipStartUs: clip.startUs,\n            onFrame: () => {},\n          });\n        },\n        onEncodedStreamReady: async (stream, track) => {\n          // Only L2 channel calls this (preview has no encode worker)\n          await this.cacheManager.receiveEncodedChunks(stream, clipId, track, {\n            onComplete: () => {\n              session.dispose();\n              // Only notify completion for video track (audio is optional)\n              if (track === 'video' && options?.onL2Complete) {\n                options.onL2Complete();\n              }\n            },\n            onError: (error) => {\n              console.error(`[Orchestrator] L2 encode stream error for ${clipId} ${track}:`, error);\n              session.dispose();\n              if (options?.onL2Error) {\n                options.onL2Error(error);\n              }\n            },\n          });\n        },\n        onAudioStreamReady: (stream, metadata) => {\n          if (options?.forL2Only) {\n            stream.cancel();\n          } else {\n            this.audioSession.handleAudioStream(stream, metadata);\n          }\n        },\n        onPipelineReady: async (attachmentResourceIds?: string[]) => {\n          // 1. 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+{"version":3,"file":"Orchestrator.js","sources":["../../src/orchestrator/Orchestrator.ts"],"sourcesContent":["import { EventBus } from '../event/EventBus';\nimport { WorkerPool } from '../worker/WorkerPool';\nimport { applyPatch as applyModelPatch } from '../model/patch';\nimport { ResourceConflictError, ResourceLoader } from '../stages/load/ResourceLoader';\nimport { CacheManager } from '../cache/CacheManager';\nimport { ConfigLoader } from '../config/ConfigLoader';\nimport type { IOrchestrator, OrchestratorConfig, RenderFrameOptions } from './types';\nimport { WorkerStatus, WorkerType } from '../worker/types';\nimport { CompositionModel, CompositionPatch, Resource, TimeUs, RcFrame, Clip } from '../model';\nimport { hasResourceId, SetCompositionModelOptions } from '../model/types';\nimport { MeframeEvent, type EventPayloadMap } from '../event/events';\nimport { CompositionPlanner } from './CompositionPlanner';\nimport { VideoClipSession } from './VideoClipSession';\nimport { ClipSessionManager } from './ClipSessionManager';\nimport { GlobalAudioSession } from './GlobalAudioSession';\nimport { MuxManager } from '../stages/mux/MuxManager';\nimport { ExportOptions } from '@/types';\nimport { VideoChunkDecoder } from '../stages/decode/VideoChunkDecoder';\nimport { quantizeTimestampToFrame } from '../utils/time-utils';\n\nexport class Orchestrator implements IOrchestrator {\n  workers: WorkerPool;\n  eventBus: EventBus<EventPayloadMap>;\n  compositionModel: CompositionModel | null = null;\n  resourceLoader: ResourceLoader;\n  cacheManager: CacheManager;\n  planner: CompositionPlanner;\n  audioSession: GlobalAudioSession;\n  muxManager: MuxManager;\n\n  private activeClips = new Set<string>();\n  private isInitialized = false;\n  private config = ConfigLoader.getInstance().getConfig();\n  private clipSessionManager: ClipSessionManager;\n  private currentClipId: string | null = null;\n  private ensureCacheDebounceTimer: number | null = null;\n  private readonly ensureCacheDebounceDelay = 150;\n  readonly events: Pick<EventBus<EventPayloadMap>, 'on' | 'off' | 'once'>;\n\n  constructor(config: OrchestratorConfig) {\n    // Use provided eventBus or create a new one\n    this.eventBus = config.eventBus || new EventBus<EventPayloadMap>();\n    this.events = this.eventBus.asReadonly();\n\n    // Initialize config first\n    this.config = ConfigLoader.getInstance().getConfig();\n\n    const workerConfigs = this.buildWorkerConfigs();\n\n    // Initialize WorkerPool with worker path from config\n    this.workers = new WorkerPool({\n      eventBus: this.eventBus,\n      workerConfigs,\n      workerPath: config.workerPath,\n      workerExtension: config.workerExtension,\n    });\n\n    this.resourceLoader = new ResourceLoader({\n      orchestrator: this as any,\n      eventBus: this.eventBus,\n      config: {\n        maxConcurrent: config.maxWorkers || (this.config.load as any)?.retry?.maxAttempts || 4,\n      },\n      onStateChange: (resourceId, state) => this.handleResourceStateChange(resourceId, state),\n    });\n\n    this.planner = new CompositionPlanner();\n\n    const cacheConfig = config.cacheConfig || this.config.cache;\n    this.cacheManager = new CacheManager(\n      {\n        l1: {\n          maxMemoryMB:\n            (cacheConfig as any)?.l1Size || (cacheConfig as any)?.l1?.maxMemoryMB || 1024,\n          maxGOPs: (this.config.decode as any)?.video?.maxGOPs || 4,\n        },\n        l2: {\n          maxSizeMB: (cacheConfig as any)?.l2Size || (cacheConfig as any)?.l2?.maxSizeMB || 2048,\n          projectId: config.projectId || this.config.global.projectId || 'default',\n        },\n      },\n      this.eventBus\n    );\n\n    this.clipSessionManager = new ClipSessionManager({\n      maxConcurrent: 2,\n      factory: {\n        createSession: (clipId) => this.createSession(clipId),\n      },\n      cacheManager: this.cacheManager,\n    });\n\n    this.audioSession = new GlobalAudioSession({\n      cacheManager: this.cacheManager,\n      workers: this.workers,\n      resourceLoader: this.resourceLoader,\n      eventBus: this.eventBus,\n      getModel: () => this.compositionModel,\n      buildWorkerConfigs: () => this.buildWorkerConfigs(),\n    });\n\n    this.muxManager = new MuxManager(\n      this.cacheManager,\n      this.audioSession,\n      this.config.encode.audio as AudioEncoderConfig\n    );\n  }\n\n  get workerStatus(): WorkerStatus {\n    const status = this.workers.status;\n    const result: WorkerStatus = {} as WorkerStatus;\n\n    const workerTypes: WorkerType[] = [\n      'videoDemux',\n      'audioDemux',\n      'videoDecode',\n      'audioDecode',\n      'videoCompose',\n      'audioCompose',\n      'videoEncode',\n    ];\n\n    for (const type of workerTypes) {\n      result[type] = status[type] || {\n        state: 'idle',\n        taskCount: 0,\n      };\n    }\n\n    return result;\n  }\n\n  async initialize(): Promise<void> {\n    if (this.isInitialized) return;\n\n    await this.cacheManager.init();\n\n    this.isInitialized = true;\n  }\n\n  // Event methods - forward to eventBus\n  on<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.on(event, handler);\n  }\n\n  off<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.off(event, handler);\n  }\n\n  once<K extends keyof EventPayloadMap>(\n    event: K,\n    handler: (payload: EventPayloadMap[K]) => void\n  ): void {\n    this.eventBus.once(event, handler);\n  }\n\n  async setCompositionModel(\n    model: CompositionModel,\n    options?: SetCompositionModelOptions\n  ): Promise<void> {\n    const { clearL1Cache = true, clearL2Cache = false } = options || {};\n\n    if (clearL1Cache) {\n      this.cacheManager.clearL1Cache();\n    }\n\n    if (clearL2Cache) {\n      await this.cacheManager.clearL2Cache();\n    }\n\n    this.compositionModel = model;\n    this.planner.setModel(model);\n    this.currentClipId = null;\n\n    this.eventBus.emit(MeframeEvent.ModelSet, model);\n\n    this.eventBus.emit(MeframeEvent.CompositionUpdated, {\n      trackCount: model.tracks.length,\n      clipCount: model.tracks.reduce((acc: number, track: any) => acc + track.clips.length, 0),\n      durationUs: model.durationUs,\n    });\n\n    await this.audioSession.activateAllAudioClips();\n  }\n\n  async applyPatch(patch: CompositionPatch): Promise<void> {\n    if (!this.compositionModel) {\n      throw new Error('No composition model set');\n    }\n\n    // Apply patch and get affected clip IDs (simplified for 2-Clip strategy)\n    // Note: addTrack/removeTrack already call buildIndexes() in patch.ts\n    const affectedClipIds = applyModelPatch(this.compositionModel, patch);\n    const clipUpdates = this.planner.applyPatch(patch, affectedClipIds);\n    this.eventBus.emit(MeframeEvent.PatchApplied, {\n      operations: patch.operations.length,\n      affectedClips: Array.from(affectedClipIds),\n    });\n\n    // Process clip updates\n    for (const update of clipUpdates) {\n      if (update.type === 'remove') {\n        this.activeClips.delete(update.clipId);\n      }\n\n      this.cacheManager.invalidateClip(update.clipId);\n      await this.clipSessionManager.handlePlannerUpdate(update.clipId, update);\n    }\n\n    // Reactivate updated audio clips\n    const reactivatedAudioClips: string[] = [];\n    const reactivatedVideoClips: string[] = [];\n    for (const clipId of affectedClipIds) {\n      const clip = this.compositionModel.findClip(clipId);\n      if (clip?.trackKind === 'audio') {\n        await this.audioSession.deactivateClip(clipId);\n        reactivatedAudioClips.push(clipId);\n      } else if (clip?.trackKind === 'video') {\n        // Video clip audio will be restarted via VideoClipSession pipeline restart\n        reactivatedVideoClips.push(clipId);\n      }\n    }\n\n    // Activate all audio clips (including reactivated ones)\n    await this.audioSession.activateAllAudioClips();\n\n    // Restart playback for affected clips (give pipeline time to decode first frame)\n    const allReactivatedClips = [...reactivatedAudioClips, ...reactivatedVideoClips];\n    if (allReactivatedClips.length > 0) {\n      setTimeout(() => {\n        for (const clipId of allReactivatedClips) {\n          this.audioSession.restartPlayingClip(clipId);\n        }\n      }, 150);\n    }\n  }\n\n  private handleResourceStateChange(resourceId: string, state: Resource['state']): void {\n    if (!this.compositionModel) {\n      return;\n    }\n\n    this.compositionModel.updateResourceState(resourceId, state ?? 'pending');\n\n    if (state !== 'ready') {\n      return;\n    }\n\n    const resource = this.compositionModel.getResource(resourceId);\n    if (!resource) {\n      return;\n    }\n\n    // Main video/audio resources: data will flow naturally into pipeline\n    if (resource.type === 'video' || resource.type === 'audio') {\n      return;\n    }\n\n    // Attachment resources (fonts, images): update instructions for active clips\n    const clipIds = this.compositionModel.getClipIdsByResourceId(resourceId);\n    for (const clipId of clipIds) {\n      // Only update active clips (in 2-Clip window)\n      if (!this.clipSessionManager.isClipActive(clipId)) {\n        continue;\n      }\n\n      const clip = this.compositionModel.findClip(clipId);\n      if (!clip) {\n        continue;\n      }\n\n      // Rebuild instructions with updated resource status\n      const instructions = this.planner.getInstructions(clipId);\n      if (!instructions) {\n        continue;\n      }\n\n      // Send updated instructions to worker (no pipeline restart needed)\n      const session = this.clipSessionManager.getSession(clipId);\n      const composeWorker = session?.composeWorker;\n      if (composeWorker) {\n        composeWorker.send('install_instructions', instructions);\n      }\n    }\n  }\n\n  async restartWorker(type: WorkerType, clipId?: string): Promise<void> {\n    const clipLocalTypes: WorkerType[] = [\n      'videoDemux',\n      'audioDemux',\n      'videoDecode',\n      'audioDecode',\n      'videoCompose',\n      'videoEncode',\n    ];\n\n    if (clipLocalTypes.includes(type) && !clipId) {\n      throw new Error(`clipId required for restarting ${type} worker`);\n    }\n\n    this.workers.terminate(type, clipId);\n    const worker = await this.workers.getOrCreate(type, clipId);\n\n    this.eventBus.emit(MeframeEvent.WorkerRestarted, {\n      type,\n      workerId: worker.getWorkerId(),\n      reason: 'Manual restart',\n    });\n\n    if (clipId) {\n      const session = this.clipSessionManager.getSession(clipId);\n      if (session) {\n        await session.activate();\n      }\n    }\n  }\n\n  async renderFrame(timeUs: TimeUs, options?: RenderFrameOptions): Promise<RcFrame | null> {\n    const signal = options?.signal;\n    const immediate = options?.immediate ?? true;\n\n    if (!this.compositionModel) {\n      throw new Error('No composition model set');\n    }\n\n    const clip = this.compositionModel.getClipsAtTime(timeUs, this.compositionModel.mainTrackId)[0];\n    if (!clip) {\n      return null;\n    }\n\n    // Detect clip change and proactively ensure cache for current/next\n    if (this.currentClipId !== clip.id) {\n      this.currentClipId = clip.id;\n      void this.ensureClipCache(timeUs, immediate);\n    }\n\n    // Calculate clip-relative time for cache lookup (global time - clip start time)\n    let relativeTimeUs = options?.relativeTimeUs ?? timeUs - clip.startUs;\n\n    // Quantize to frame boundary to handle timestamp precision issues\n    relativeTimeUs = quantizeTimestampToFrame(relativeTimeUs, 0, this.compositionModel.fps);\n\n    // Clamp to clip duration to handle edge cases where quantization pushes beyond clip end\n    // This can happen when clip duration is not exactly aligned to frame boundaries\n    relativeTimeUs = Math.min(relativeTimeUs, clip.durationUs - 1);\n\n    const cachedFrame = this.cacheManager.getFrame(relativeTimeUs, clip.id);\n    if (cachedFrame) {\n      this.eventBus.emit(MeframeEvent.CacheHit, {\n        timeUs,\n        level: 'L1',\n        key: `${clip.id}-${relativeTimeUs}`,\n      });\n      return cachedFrame;\n    }\n\n    this.eventBus.emit(MeframeEvent.CacheMiss, {\n      timeUs,\n      level: 'L1',\n      key: `${clip.id}-${relativeTimeUs}`,\n    });\n\n    if (signal?.aborted) {\n      throw new DOMException('Render aborted', 'AbortError');\n    }\n\n    // L1 miss - try decode from L2\n    const l2Frame = await this.decodeFromL2(relativeTimeUs, clip);\n    if (l2Frame) {\n      // If we are serving video from L2, opportunistically ensure audio from L2 as well\n      void this.ensureAudioFromL2(clip.id);\n      return l2Frame;\n    }\n\n    return null;\n  }\n\n  private async ensureAudioFromL2(clipId: string): Promise<void> {\n    try {\n      // Skip if PCM already present\n      if (this.cacheManager.hasClipPCM(clipId)) {\n        return;\n      }\n      // Check if L2 has encoded audio for this clip\n      const hasAudio = await this.cacheManager.hasClipInL2(clipId, 'audio');\n      if (!hasAudio) return;\n      // Decode from L2 into PCM cache (non-blocking for render)\n      await this.audioSession.ensureClipAudioFromL2(clipId);\n    } catch (error) {\n      console.warn('[Orchestrator] ensureAudioFromL2IfNeeded error:', error);\n    }\n  }\n\n  // TODO: move to @ClipSessionManager\n  private async decodeFromL2(timeUs: TimeUs, clip: Clip): Promise<RcFrame | null> {\n    const { id, trackId, startUs } = clip;\n    const [chunkStream, metadata] = await Promise.all([\n      this.cacheManager.l2Cache.createReadStream(id, 'video'),\n      this.cacheManager.l2Cache.getClipMetadata(id, 'video'),\n    ]);\n\n    if (!chunkStream || !metadata?.codec) {\n      return null;\n    }\n\n    const decoder = new VideoChunkDecoder(`l2-temp-${id}`, {\n      codec: metadata.codec,\n      width: metadata.codedWidth,\n      height: metadata.codedHeight,\n      description: metadata.description,\n      hardwareAcceleration: metadata.hardwareAcceleration || 'no-preference',\n      thread: 'main',\n    });\n\n    try {\n      const decodeStream = chunkStream.pipeThrough(decoder.createStream());\n\n      let targetFrame: RcFrame | null = null;\n\n      await this.cacheManager.receiveComposedFrames(decodeStream, {\n        clipId: id,\n        trackId: trackId || this.compositionModel?.mainTrackId || 'main',\n        fps: this.compositionModel?.fps ?? 30,\n        clipStartUs: startUs,\n        onFrame: (info) => {\n          if (info.timeUs === timeUs) {\n            targetFrame = this.cacheManager.getFrame(timeUs, id);\n          }\n        },\n      });\n\n      return targetFrame;\n    } finally {\n      await decoder.close();\n    }\n  }\n\n  /**\n   * Ensure clips are cached using 2-Clip strategy\n   * Debounced to avoid excessive session activation during fast seek\n   * @param timeUs - Target time for cache window\n   * @param immediate - Skip debounce if true (used for initial load)\n   */\n  async ensureClipCache(timeUs: TimeUs, immediate = false): Promise<void> {\n    const executeCache = async (): Promise<void> => {\n      if (!this.compositionModel) return;\n\n      const clipIds = this.compositionModel.getClipsToCacheAtTime(timeUs);\n      if (clipIds.size === 0) return;\n      await this.clipSessionManager.ensureClips(clipIds);\n    };\n\n    if (this.ensureCacheDebounceTimer !== null) {\n      clearTimeout(this.ensureCacheDebounceTimer);\n      this.ensureCacheDebounceTimer = null;\n    }\n\n    if (immediate) {\n      return executeCache();\n    }\n\n    return new Promise((resolve) => {\n      this.ensureCacheDebounceTimer = setTimeout(async () => {\n        this.ensureCacheDebounceTimer = null;\n        await executeCache();\n        resolve();\n      }, this.ensureCacheDebounceDelay) as unknown as number;\n    });\n  }\n\n  /**\n   * Wait for clip cache to be ready for playback\n   * Returns true if minimum cache is ready, false if timeout\n   */\n  async waitForClipReady(\n    timeUs: TimeUs,\n    options?: { minFrameCount?: number; timeoutMs?: number }\n  ): Promise<boolean> {\n    if (!this.compositionModel) {\n      return false;\n    }\n\n    const clips = this.compositionModel.getClipsAtTime(timeUs, this.compositionModel.mainTrackId);\n    if (clips.length === 0) {\n      return true;\n    }\n\n    const currentClip = clips[0];\n    if (!currentClip) {\n      return true;\n    }\n\n    // For buffering scenario, we just need ANY frames in the clip\n    // Don't restrict to frames after a specific startTimeUs, as the pipeline\n    // might be rendering from the beginning while playback is in the middle\n    return this.cacheManager.waitForClipReady(currentClip.id, {\n      minFrameCount: options?.minFrameCount ?? 5,\n      timeoutMs: options?.timeoutMs ?? 5_000,\n      // Don't pass startTimeUs - count all frames in the clip\n    });\n  }\n\n  // TODO: move to @ClipSessionManager\n  async renderClipForL2(clipId: string): Promise<boolean> {\n    const sessionId = `${clipId}#l2`;\n    let session: VideoClipSession | null = null;\n\n    return new Promise<boolean>((resolve, reject) => {\n      this.createSession(sessionId, {\n        forL2Only: true,\n        clipId: clipId,\n        onL2Complete: () => {\n          resolve(true);\n        },\n        onL2Error: (error) => {\n          console.error('[Orchestrator] L2 rendering failed for', clipId, error);\n          reject(error);\n        },\n      })\n        .then((s) => {\n          session = s;\n          return session.activate();\n        })\n        .catch(async (error) => {\n          // Clean up partial session on any error to avoid worker state pollution\n          if (session) {\n            await session.dispose();\n          }\n\n          if (error instanceof ResourceConflictError) {\n            resolve(false);\n          } else {\n            reject(error);\n          }\n        });\n    });\n  }\n\n  // TODO: move to @ClipSessionManager\n  private async createSession(\n    sessionId: string,\n    options?: {\n      forL2Only?: boolean;\n      clipId?: string;\n      onL2Complete?: () => void;\n      onL2Error?: (error: Error) => void;\n    }\n  ): Promise<VideoClipSession> {\n    const clipId = options?.clipId ?? sessionId;\n    const clip = this.compositionModel?.findClip(clipId);\n    if (!clip) {\n      throw new Error(`Clip ${clipId} not found`);\n    }\n\n    const session = await VideoClipSession.create({\n      clipId,\n      sessionId,\n      forL2Only: options?.forL2Only ?? false,\n      planner: this.planner,\n      workerPool: this.workers,\n      cacheManager: this.cacheManager,\n      compositionModel: this.compositionModel!,\n      workerConfigs: this.buildWorkerConfigs(),\n      resourceLoader: this.resourceLoader,\n      callbacks: {\n        onComposedStreamReady: async (stream, fps) => {\n          // Only preview channel calls this (L2 sends directly to encode worker)\n          await this.cacheManager.receiveComposedFrames(stream, {\n            clipId: clipId,\n            trackId: this.compositionModel!.mainTrackId,\n            fps,\n            clipStartUs: clip.startUs,\n            onFrame: () => {},\n          });\n        },\n        onEncodedStreamReady: async (stream, track) => {\n          // Only L2 channel calls this (preview has no encode worker)\n          await this.cacheManager.receiveEncodedChunks(stream, clipId, track, {\n            onComplete: () => {\n              session.dispose();\n              // Only notify completion for video track (audio is optional)\n              if (track === 'video' && options?.onL2Complete) {\n                options.onL2Complete();\n              }\n            },\n            onError: (error) => {\n              console.error(`[Orchestrator] L2 encode stream error for ${clipId} ${track}:`, error);\n              session.dispose();\n              if (options?.onL2Error) {\n                options.onL2Error(error);\n              }\n            },\n          });\n        },\n        onAudioStreamReady: (stream, metadata) => {\n          if (options?.forL2Only) {\n            stream.cancel();\n          } else {\n            this.audioSession.handleAudioStream(stream, metadata);\n          }\n        },\n        onPipelineReady: async (attachmentResourceIds?: string[]) => {\n          // 1. Load main track resource\n          const clip = this.compositionModel?.findClip(clipId);\n          if (clip && hasResourceId(clip)) {\n            await this.resourceLoader.fetch(clip.resourceId, {\n              priority: options?.forL2Only ? 'low' : 'high',\n              sessionId: sessionId,\n              trackId: clip.trackId,\n              isMainTrack: true,\n            });\n          }\n\n          // 2. Load attachment resources (global shared Blob cache)\n          if (attachmentResourceIds && attachmentResourceIds.length > 0) {\n            for (const resourceId of attachmentResourceIds) {\n              await this.resourceLoader.fetch(resourceId, {\n                priority: 'normal',\n                sessionId: sessionId,\n                isMainTrack: false,\n              });\n            }\n          }\n        },\n      },\n    });\n\n    this.activeClips.add(sessionId);\n    return session;\n  }\n\n  async dispose(): Promise<void> {\n    if (this.ensureCacheDebounceTimer !== null) {\n      clearTimeout(this.ensureCacheDebounceTimer);\n      this.ensureCacheDebounceTimer = null;\n    }\n\n    this.resourceLoader.dispose();\n    await this.clipSessionManager.dispose();\n    await this.cacheManager.clear();\n\n    this.currentClipId = null;\n    this.activeClips.clear();\n\n    this.workers.terminateAll();\n    this.compositionModel = null;\n    this.eventBus.dispose();\n  }\n\n  private buildWorkerConfigs(): Record<WorkerType, any> {\n    const config = this.config as any;\n    const defaultCanvasWidth = config.global?.defaultCanvasWidth ?? 720;\n    const defaultCanvasHeight = config.global?.defaultCanvasHeight ?? 1280;\n    const defaultFps = config.global?.defaultFps ?? 30;\n    return {\n      videoDemux: {\n        highWaterMark: config.demux?.backpressure?.highWaterMark ?? 10,\n      },\n      audioDemux: {\n        highWaterMark: config.demux?.backpressure?.highWaterMark ?? 10,\n      },\n      videoDecode: config.decode?.video,\n      audioDecode: config.decode?.audio,\n      videoCompose: {\n        width: config.compose?.canvas?.width ?? defaultCanvasWidth,\n        height: config.compose?.canvas?.height ?? defaultCanvasHeight,\n        fps: config.global?.defaultFps ?? defaultFps,\n        backgroundColor: config.compose?.canvas?.backgroundColor ?? '#000000',\n        enableSmoothing: config.compose?.visual?.enableSmoothing ?? true,\n        enableHardwareAcceleration: config.compose?.visual?.enableHardwareAcceleration ?? true,\n        fonts: config.global?.fonts,\n      },\n      audioCompose: {\n        ducking: config.compose?.audio?.ducking,\n        mixing: config.compose?.audio?.mixing,\n      },\n      videoEncode: {\n        codec: 'avc1.42002A',\n        width: config.compose?.canvas?.width || defaultCanvasWidth,\n        height: config.compose?.canvas?.height || defaultCanvasHeight,\n        bitrate: config.encode?.video?.bitrateKbps\n          ? config.encode.video.bitrateKbps * 1000\n          : 12_000_000,\n        framerate: config.encode?.video?.framerate || defaultFps,\n        latencyMode: 'quality',\n        bitrateMode: 'variable',\n        hardwareAcceleration: 'no-preference',\n        ...(config.encode?.video as any),\n      },\n    };\n  }\n\n  async export(model: CompositionModel, options: ExportOptions): Promise<Blob> {\n    return this.muxManager.export(model, options);\n  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package.json

 {
   "name": "@meframe/core",
-  "version": "0.0.27",
+  "version": "0.0.28",
   "description": "Next generation media processing framework based on WebCodecs",
@@ -5,0 +5,0 @@ "type": "module",

New alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Fixed alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

3510525

0.07%

Lines of code

37230

0.08%

No dependency changes