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XT2 Series DISK RECORDER - Version 10.05 - Software Technical Reference Manual

Issue

10.05.A

EVS Broadcast Equipment SA – July 2011

5. Protocols

5.1 CONTROL PROTOCOLS

These protocols allow the EVS video server to be controlled by external devices.

Sony BVW75 Protocol

This protocol allows the server to be seen as a VTR by the controlling device. On

a playback channel, all usual transport commands (play, PlayVar, pause, goto

timecode, stop, etc…) are supported. On a record channel, only Rec and Stop

commands are supported.

This protocol is the simplest one but does not support clip management. It should

be used when the controlling device does not support the XtenDD35, Odetics or

Louth VDCP protocols (ex: edit controllers, NLE applications, some video

switchers, VTR controllers, etc.).

EVS has also adapted the behavior of specific commands:

• REC: when a REC command is sent to a player channel, this channel will

return in E2E mode on its default record train. If the default recorder channel

associated to that player is currently stopped, it will jump to the last recorded

picture and pause.

• EJECT: if the player channel is not yet in E2E mode when the command is

sent, it will return to E2E mode on its default record train (similar to receiving

a REC command). If the player channel is already in E2E mode, it will switch

to the next recorder channel available (A B C … A …). This is for

example useful with a BVE edit controller to allow the editors to select the

record train they want to work with.

Refer to the EVS Sony Protocol documentation for more details.

EditRec Protocol

EditRec protocol allows the EVS server to be controlled by one editing console,

like Sony BVE2000, BVE9100, Sony Plug In Editor switcher interface or Editware

Fastrack. This protocol name has been used to differentiate it from the already

existing “Sony BVW” protocol that is limited in EVS server to the “read-only”

command subset. EditRec protocol implements all Sony BVW protocol commands

required for linear editing.

Refer to EditRec documentation for more details.

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EVS XT2+ Manual de usuario Pagina 79