Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 154)

154 MAESTRO — Automation Interface Protocol Technical Reference Manual
Section 5 — Definition of Extended Maestro Commands
<boxID> = (1 byte) 0-255, Content Definition table element boxID
0 = NOP (can be used with Stills, Animations, Audio Clips, and Text Crawl content types)
Reference to a CGText element's configured CGBox in the Maestro Configuration Editor - Content Definition
table. This parameter is only applicable to CGText content types. This parameter will be ignored for Still, Ani-
mation, Audio Clips, and Text Crawl content types.
<V/A bitmask> = (1 byte)
Bit 0 = Video
Bit 1 = Audio
If the V/A bitmask attempts to query or effect a change on an unconfigured element (e.g.: specifying video and
audio for a source only configured with video) the unconfigured element of the mask will be ignored and no
response generated.
<filename> = (40 bytes, MSB first) Null terminated and filled ASCII representation of filename.
Empty string = remove any existing filename association for the indicated <source> <boxID>. This will revert
the association back to the configured pathname. Valid characters include A-Z, a-z, underscore, and period ".".
Since the deployed content is converted to an internal format with an internal file extension, filename extensions
are ignored as the type of the specified source (as configured in the Content Definition table) will dictate the
internal file extension.