Re: [whatwg/streams] Explainer for proposed stream changes related to VideoFrame processing (PR #1193)

@alvestrand commented on this pull request.



> +      // At this point, videoFrame has been transfered within controller.enqueue call. frameCountTransform cannot mutate it.
+      if (!(++frameCount % 30) && frameCountTransform.onEach30Frame)
+          frameCountTransform.onEach30Frame(frameCount);
+    } catch {
+      videoFrame.close();
+    }

If we borrow the "transfer" concept from "transferable", the object left behind after the transfer is "neutered"; usually this means all the methods on it check a "neutered" flag before doing anything. (I may have the name wrong.)

I think we should mandate that all closable objects have a close operation that is a no-op if the object is already closed (or transferred).


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