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Re: Behavior of source nodes on connect/disconnect

From: Robert O'Callahan <robert@ocallahan.org>
Date: Fri, 13 Sep 2013 13:32:59 -0700
Message-ID: <CAOp6jLaZ=KMF8VaC0RCTrsvPDp9RswiGy8h-f5wDjg_7SqYQ9w@mail.gmail.com>
To: Jussi Kalliokoski <jussi.kalliokoski@gmail.com>
Cc: Jer Noble <jer.noble@apple.com>, Chris Wilson <cwilso@google.com>, Raymond Toy <rtoy@google.com>, "public-audio@w3.org" <public-audio@w3.org>
On Fri, Sep 13, 2013 at 1:31 PM, Robert O'Callahan <robert@ocallahan.org>wrote:

> On Fri, Sep 13, 2013 at 1:26 PM, Jussi Kalliokoski <
> jussi.kalliokoski@gmail.com> wrote:
>
>> I don't really care about using disconnect as pause, it's not meant for
>> that and it's not a good solution for that. What I care about is what the
>> use case / justification for having this weirdness is? A nice-to-have (not
>> sure this is even a nice-to-have) doesn't really warrant introducing hard
>> to debug memory leaks. I believe a lot of developers will expect that if
>> they disconnect a ScriptProcessorNode and lose references to it, it gets
>> GCed and doesn't burn cycles and / or eat away the performance of the graph
>> anymore. This is similar to disconnecting a DOM node from the graph. If it
>> has no references, it gets garbage collected and no more events are fired.
>>
>
> That's not true for DOM nodes in general. For example, a completely
> disconnected HTML media element that's playing some media resource
> continues to fire events.
>

I also think it would be bizarre for a developer to connect some audio node
subgraph to the input of a ScriptProcessorNode for analysis, but not get
events unless the output of that ScriptProcessorNode is connected to the
DestinationNode.

Rob
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Received on Friday, 13 September 2013 20:33:27 UTC

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