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NeXtMidas Training
Macros - Part 1 (Basics)
Pipes in a Macro
Data Pipes
Warm Starts
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- Warm Starts and Reconnects:
- In order to fully understand what "warm starts"
and "reconnects" are, it is important to first explain what a "cold
start" is...
- What is a "cold start"?
- A cold start is when a pipe is created with all pipe parameters
set (start values, frame size, etc) and all connections to the
pipe are made before the pipe section starts running.
- When the pipe section starts running, the pipe starts
with data "flowing" from the writer to the readers.
- With a cold start the first element read from a pipe is the
same as the first element written to the pipe, i.e. there is
no data loss.
- What is a "warm start"?
- A warm start is when a primitive connects to a pipe that is
already running.
- When a new primitive connects to a pipe that is already running
the first element it reads from the pipe will not be the first
element written to the pipe. The new primitive
will not have access to previous pipe data.
- What is a "reconnect"?
- In NeXtMidas, it is possible to alter the parameters that change the
structure of a pipe that is already running (such as the frame size
or FFT size). This will cause all readers of the pipe to "restart"
and "reconnect" to a newly-updated pipe.
- The details of how a primitive implements a restart are discussed
in the "Primitives" module.
- During a reconnect there is no data loss.
X-Midas Users Take Note: |
X-Midas pipes only support cold starts (though there are tricks around
this involving subshells). NeXtMidas supports cold starts, warm starts,
and reconnects. In NeXtMidas no special action is required in order to
make use of these features, their use is transparent to the macro writer.
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