GRASS VALLEY THE KAYENNE CLIPSTORE - APPLICATION NOTE 11-2010, Kayenne ClipStore Application Note

APPLICATION

NOTE

The Kayenne ClipStore

David Casper

November 2010

The Grass Valley™ Kayenne™ Video Production
Center ClipStore provides the means to
rapidly load and play clips that are integral to
live production, whether they’re packages for

replay, or animations used in transitions.

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Introduction

THE KAYENNE CLIPSTORE

The Grass Valley Kayenne ClipStore
incorporates K2 media server
technology by embedding either a
4-channel K2 Summit
nel K2 Solo
channels records and plays a video
and key pair. The ClipStore video and
key are kept in one single file (not
two files) so that video, key, and
audio are always synchronized with­out the need to gang channels.

The ClipStore records and plays
back using AVC-Intra 100 com­pression format. Clips imported
in DVCPRO HD, DVCPRO 25/50,
DV, and MPEG-2 will play natively.
The ClipStore supports record and
playback of embedded audio. The
server’s AES I/O is not used in this
application.

™

. Each of these server

™

or a 2-chan-

Control and use of the ClipStore
is completely integrated into the
Kayenne’s control panel and menu.
There is no need to ever use the
server’s native AppCenter Elite user
interface. Indeed, using this inter­face could cause conflicts with the
switcher if used at the same time.

Of course the ClipStore provides
the means to ingest material.
Additionally, it provides the means
to edit and trim clips, and to
assemble a video/key/audio clip
from separate files. This is described
later in this document. However,
what is most important is the way
the ClipStore is integrated into the
switcher’s control system, so that
in addition to the manual loading
of clips using the switcher’s menu,
clips can be loaded, cued, and

played using E-MEM, macros, and
Q-MEM. It is this integration, which
makes the ClipStore so valuable and
versatile.

Unlike other K2 media servers and
media players in a facility’s network,
the ClipStore is intentionally isolated
from that network, and embedded
in the switcher’s control system.
The ClipStore is provided for direct
control by the technical director/
vision mixer, and is considered to be
local storage completely under the
user’s control. Let’s first look at how
clips can be manually loaded and
played. Then we shall see how this
is done under E-MEM control and
Macro control.

Fusion adds value to Grass Valley solutions by providing tighter
integration, unique functionality, and increased flexibility when our
products are connected together—leading to more efficient and faster
production. With Fusion, a ClipStore is part of the Grass Valley Kayenne
Video Production Center.

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Loading and Playing

THE KAYENNE CLIPSTORE

ClipStore playout is found in the Kayenne menu system
under Image Store/Record and Replay. This selection
has three tabs: Stills, Clips, and Clip Record and Edit.
When selecting the ‘Clips’ tab, the clips in the currently
selected folder are displayed as thumbnails or in a list
view. To load a clip, select a channel by touching its
output icon, and then touch the clip. As soon as the clip
is loaded and ready to play, the thumbnail is displayed in

the channel’s icon. There is a full range of motion control
for the clip, playing at unity or variable speed, for ward
or reverse, and of course fast forward and rewind. The
menu also has a jog knob to precisely move the clip
as well as setting precise mark-in and mark-out points.
Also, most useful for animated backgrounds, is the abil­ity to loop a clip continuously.

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THE KAYENNE CLIPSTORE

Cueing and Playing using E-MEM Keyframe Triggers

To build a show, it is important to include the load and
play of clips into E-MEM effects. This is done easily in
the same menu by using keyframe triggers. When the
‘KF Triggers’ button is pressed, the keyframable options
become jeweled in the menu, so they can be turned
on or off. A keyframe can optionally load a clip (mak­ing it current), cue the current clip to mark-in, play the
current clip, and loop it. It is generally best to go to the
Master E-MEM section of the control panel and learn
the ‘Load Trigger’ into a new register. This keyframe

remembers the output, the clip name, and the directory
location. Then, insert after the current keyframe, a new
keyframe containing a ‘Play Trigger’. So the first key­frame loads the clip and the second plays the clip. The
ClipStore channels CS-1 to CS-4 default to MISC levels
1 to 4 of Master E-MEM. However these channels can
be assigned to any level. Most usefully, the channels
can be made definable and placed as sub-levels within
an M/E. In this case the M/E and the clip can be driven
from a local E-MEM panel rather than the master.

Cueing and Playing Using Macros

To create a macro for the ClipStore, first ensure that
‘KF Triggers’ are turned off. Now ClipStore functions
accessed through the menu can be recorded into a
macro, including Load, Cue, Play, Stop, Rewind, and
Audio Mute. Initiation of the macro record can be per­formed on the control panel or the macro menu. In both
cases it is the same, select a macro and press ‘Record.’

Then go to the ClipStore Menu, select the output chan­nel, and then select the clip. Before recording the play­ing of the clip it is necessar y to insert a delay of at least
three frames before the play command is recorded; use
the ‘Insert Delay’ button to insert this delay. Not only
does the macro record the name of the clip, but also
the directory in which it is located—which is necessar y
where different shows have the same clip name such as
‘Opening.’

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