[gmpi] Re: Decision Time: 7.3 (was 7.4, but 7.3 was too detailed)
- From: Mike Berry <mberry@xxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Tue, 05 Aug 2003 08:46:59 -0600
Tim Hockin wrote:
I'm skipping the old 7.3 (disconnected ports) because I think that will just
fall out of the bigger picture naturally.
So old 7.4 is now 7.3 (and last 7.x!)
Topic 7.3: Silence
-------------------
Q: Do we handle silent buffers specially?
a) Yes. There is a flag somewhere to indicate that a port is now silent.
Plugins and hosts may both treat this as optional.
b) No.
c) Other. Explain.
a) If a buffer is actually silent (contains all zeroes), then the host
can optioanlly set the silent flag. If the plugin does not process in
place, then it can safely ignore the silent flag, or it can set it on
its output buffer if it is actually silent. If the plugin processes in
place, then it must recognize the silent flag, not necessarily for
processing, but it must clear it if the io buffer is altered so that it
is no longer zero. In all cases, the silent flag can only be set on a
buffer which actually contains all zeroes.
--
Mike Berry
Adobe Systems
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