GRASS VALLEY KARRERA, Руководство пользователя

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132 KARRERA — User Manual
Section 4 — Switcher Control
Macros
Introduction
Macros provide a mechanism to record a series of actions and then play
them back by pressing a single button. Macro steps specify commands sent
to the Video Processor Frame, rather than simple button presses. Macros
are fundamentally different from E-MEMs. E-MEMs store the complete
state of a portion of the switcher (level and sublevel) into keyframes. For
example, an E-MEM keyframe for ME 1 captures all the source selections,
keyer settings, transition type, wipe patterns, etc. for all the buses of ME 1
at the time that keyframe was added to the E-MEM register. A macro, on
the other hand, affects only the specific elements involved in the recording
of that macro. For example, a macro can be recorded that sets up only the
Preset bus with a particular source and selects a specific wipe pattern and
transition rate. You can recall an E-MEM to put the ME in a known state,
and when you want to prepare that specific transition to just that source,
simply play the macro. In this example, different macros can be recorded
with different sources to allow rapid and reliable variations on the E-MEM
effect that was originally recalled.
A macro can contain several steps. Macros are executed as quickly as pos-
sible in the order the steps are recorded. It is also possible to insert delays
in a macro sequence during recording to accommodate external devices or
allow for completion of internal system events.
Macros add enormous power and flexibility to the Karrera system. Simple
tasks can be recorded into a macro quickly and easily for rapid and reliable
playback. Complex series of actions can also be programmed into a macro,
but careful planning is required to ensure the macro accomplishes its
intended actions for all the conditions under which it may be played back.
Note Macro attachments are saved and loaded with Panel Prefs. One set of attach-
ments exists for each control surface. Be sure the Panel Prefs you load are
compatible with the Macro registers you are currently using, to avoid acci-
dentally running incorrect attached Macros.
Macro Recording
Macros are recorded into macro registers. The Karrera system has 999
macro registers. The number of steps in any specific macro or the total
number of macro steps across all macros is limited only by the amount of
available memory in the Video Processor Frame.