Properly free buffers and clear contexts on disposal in FilterAPI and FilterComplexAPI

Author: seydx

src/api/filter-complex.ts

@@ -1771,19 +1771,24 @@ export class FilterComplexAPI implements Disposable {
 
     this.isClosed = true;
 
-    // Free any queued frames
     for (const inputState of this.inputs.values()) {
       for (const frame of inputState.queuedFrames) {
         frame.free();
       }
       inputState.queuedFrames = [];
+      inputState.buffersrc?.free();
+      inputState.buffersrc = null;
+    }
+
+    for (const outputState of this.outputs.values()) {
+      outputState.buffersink?.free();
+      outputState.buffersink = null;
     }
 
-    // Clear maps
     this.inputs.clear();
     this.outputs.clear();
 
-    // Free graph
+    this.frame.free();
     this.graph.free();
 
     this.initialized = false;

src/api/filter.ts

@@ -1490,11 +1490,14 @@ export class FilterAPI implements Disposable {
     this.inputQueue.close();
     this.outputQueue.close();
 
-    this.frame.free();
-    this.graph.free();
+    this.buffersrcCtx?.free();
+    this.buffersinkCtx?.free();
     this.buffersrcCtx = null;
     this.buffersinkCtx = null;
 
+    this.frame.free();
+    this.graph.free();
+
     this.initialized = false;
     this.initializePromise = null;
   }