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Re: rewiring on the fly and AUGraphUpdate
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Re: rewiring on the fly and AUGraphUpdate


  • Subject: Re: rewiring on the fly and AUGraphUpdate
  • From: William Stewart <email@hidden>
  • Date: Tue, 10 Apr 2007 11:25:29 -0700

Jan

Its hard to tell from your description - if you have some simple code that can reproduce this problem, it would be best if you could file a bug report and attach that code to it.

bugreporter.apple.com

Thanks

Bill

On 09/04/2007, at 4:46 PM, Jan Calta wrote:

Hello,

I'm trying to connect/disconnect AUTimePitch to rendering AUGraph and
have some troubles with AUGraphUpdate call after setting connections
(via AUGraphClearConnections and AUGraphConnectNodeInput calls):

I have AUFilePlayer->(AUTimePitch)->AUDefaultOutput graph and I'm
usually able connect TimePitch during processing, but when I try to
disconnect it again, it almost everytime damages the graph (jump to
different (or even non-existent) frame is made and I get no output).
This is when I use blocking call of AUGraphUpdate(graph, NULL). Next
reconnection doesn't work.

When I use nonblocking call - AUGraphUpdate(graph, &update), I get
"NO" value in 'update'. Could I know, what can get wrong during
GraphUpdate and what can I do to get it really updated?

I use CAShow before and after rewiring + updating and result seems to
be ok, structure of graph is reported as expected. All nodes are
connected via 0 bus - I think this is the right way?

Is there any obvoius reason, why AUGraphUpdate doesn't work in this
case? Do I miss to call any other function before AUGraphUpdate?

Thank you for any help
Jan Calta
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References: 
 >rewiring on the fly and AUGraphUpdate (From: "Jan Calta" <email@hidden>)

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