fix(image): H264 loop keyframe after reset; v1.7.4

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ioai/rosview",
-  "version": "1.7.3",
+  "version": "1.7.4",
   "description": "High-performance robotics data visualization for MCAP, ROS bag, ROS2 db3, HDF5 and BVH — embeddable React component and standalone SPA",
   "keywords": [
     "ros",

src/core/players/IterablePlayer.ts

@@ -1016,6 +1016,9 @@ export class IterablePlayer implements Player {
         if (!this._isPlaybackEpochCurrent(loopEpoch)) {
           return;
         }
+        // Match seek: notify rewind first so H264 panels can reset/wait for IDR
+        // before backfill or live frames arrive after configure().
+        this._notifyTimeSubscribers(this._currentTime);
         const topics = this._currentTopics();
         if (topics.length > 0) {
           const messages = await this._source.getBackfillMessages({ time: this._currentTime, topics });
@@ -1024,7 +1027,6 @@ export class IterablePlayer implements Player {
           }
           this._distributeMessages(messages, this._currentTime);
         }
-        this._notifyTimeSubscribers(this._currentTime);
         this._emitState();
         this._scheduleNextTick();
         return;

src/features/panels/Image/core/ImageRender.worker.ts

@@ -789,9 +789,10 @@ class ImageRenderWorkerRuntime {
   #resetH264RuntimeState(): void {
     this.#h264Pressure = initialH264PressureState();
     this.#h264DecodeMs = 0;
-    this.#h264WaitingForIdr = false;
-    this.#h264ConfigBeforeIdr = [];
-    this.#h264RecentConfig = [];
+    // After close()/configure(), WebCodecs requires the next VCL chunk to be an
+    // IDR. Keep recent SPS/PPS so a bare IDR can still reconfigure the decoder.
+    this.#h264WaitingForIdr = true;
+    this.#h264ConfigBeforeIdr = [...this.#h264RecentConfig];
     this.#h264NeedsResync = false;
     this.#lastH264RenderAt = -Infinity;
     this.#lastH264BitmapAt = -Infinity;

src/infra/sources/McapIndexedIterableSource.ts

@@ -135,7 +135,7 @@ export class McapIndexedIterableSource implements IIterableSource {
     this._start = fromNano(startTime ?? 0n);
     this._end = fromNano(endTime ?? 0n);
 
-    console.log("McapIndexedIterableSource: initialized", {
+    console.debug("McapIndexedIterableSource: initialized", {
       topicCount: topics.length,
       startTime: this._start,
       endTime: this._end

src/infra/workers/WorkerSerializedSource.ts

@@ -63,7 +63,7 @@ export class WorkerSerializedSource implements ISourceHandle {
   }
 
   async initialize(args: Record<string, unknown>): Promise<Initialization> {
-    console.log("WorkerSerializedSource: calling initialize");
+    console.debug("WorkerSerializedSource: calling initialize");
     try {
       // Ensure all objects passed to Comlink are plain objects
       const sanitizedArgs: Record<string, unknown> = {};
@@ -86,7 +86,7 @@ export class WorkerSerializedSource implements ISourceHandle {
       const result = await this._raceWorkerFailure(
         this._wrapAbortableInitialize(this._remote.initialize(sanitizedArgs)),
       );
-      console.log("WorkerSerializedSource: initialize result received");
+      console.debug("WorkerSerializedSource: initialize result received");
       return result;
     } catch (e) {
       console.error("WorkerSerializedSource: initialize failed", e);

src/infra/workers/mcap.worker.ts

@@ -63,7 +63,7 @@ class McapWorkerImpl implements IWorkerSerializedSourceWorker {
       enabled: args.workerPerf === true,
       label: "mcap",
     });
-    console.log("McapWorker: initialize starting", args);
+    console.debug("McapWorker: initialize starting", args);
     try {
       let rawReadable: IReadable;
       const url = typeof args.url === 'string' ? args.url : undefined;