NewTek 3Play 3P1, Руководство пользователя

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For example, connecting one of 3P1’s NDI outputs to a TriCaster® input provides the necessary link to
send shortcut commands to the 3Play, or trigger 3Play macros from the TriCaster.
17.6.1 EXAMPLE – CONTROLLING 3PLAY
Let’s consider a simple example taking advantage of the potential this ability offers.
Using TriCaster’s Macro system, it is easy to send instructions from TriCaster to 3Play systems whose NDI
outputs are connected to the Switcher.
Such a macro could actually perform sequential operations on both systems, and be assigned to a
TriCaster shortcut keystroke or other macro trigger for convenient execution with a single user
interaction.
There is no need for complicated configuration. TriCaster ’knows’ which NDI sources are connected to its
network inputs, and can initiate the necessary communications.
For example, 3Play network outputs typically appear in TriCaster’s Network Input source selectors as
something like “3Play(A)” and “3Play(B)”. If you select “3Play(A)” as the active source for TriCaster’s
Switcher input 1, communication between TriCaster and 3Play can be established.
Unique “Net#” entries in the macro identify the target system the instructions specified are directed to.
When examined in TriCaster’s Macro Editor, a typical macro entry of this type might look as follows:
Delay (ms) Shortcut Value Key 1 Value 1
0 net1 clip_play Speed .5
The shortcut “net1” targets the macro to address the NDI source connected to TriCaster’s Input 1.
Additional entries on the same line supply the instruction to be performed when the macro is executed.

The Value “clip_play” commands the target source to play the currently selected clip (in our
example, the current clip selected on 3Play’s channel A)

The Key 1 entry “speed” sets the playback speed to the value which follows next on the line, “.5”
in our example. This will cause playback to occur at 50% speed.
It is entirely possible to create more complex macros that combine commands in this manner.