[gmpi] Re: Topic 7.3: Unconnected inputs/outputs
- From: Tim Hockin <thockin@xxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Mon, 2 Jun 2003 15:17:13 -0700 (PDT)
Resending with new notes and annotations
> Topic 7.3: Unconnected inputs/outputs
> ------------------------------------------
>
> Q: How do we handle disconnected inputs/outputs?
>
> a) They are given a NULL buffer and must detect it.
>
> b) They are given a zero-filled (or SILENT) buffer.
>
> c) If a plugin supports disconnected inputs/outputs, they are flagged
> or negotiated at connection-time. If an in/out is agreed to be
> disconnected, no buffer is needed. Otherwise, the host must provide a
> zero-filled (or SILENT) buffer for logically disconnect in/outs.
d) The host may disconnect an input/output at any time. Plugins will be
notified when a port is connected or disconnected. Plugins must internally
handle a disconnected input/output or request special ZERO and TRASH buffers
from the host (or something like that). This is conceptually the same as
c), with clarifications and less resposibility for the host.
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