Grass Valley Imagestore 750 v.2.0.1 - Manual (Page 43)

Imagestore 750 User Manual Overview
Miranda Technologies Inc. Page 43
storage and live playout for up to 4000 full or part-screen images of variable
duration.
The maximum animation length is dependent upon the screen-size of the
images, the playout memory installed in the Imagestore 750 (512MB or 2GB)
and the amount of that memory allocated to the associated keyer.
There are four video stores, which may be used to hold text, stills or moving
logos. The images may be any size up to full screen. Stored images and their
associated keys are stored and processed at 10 bit resolution (unless the
image is stored without key to save space in which case it is stored at 8 bit
resolution.)
The time of larger animations, up to full screen, is reduced proportionally to
the area used. Areas are evaluated each frame so animations may change in
size with no penalty.
With 128MB of playout memory per store, a logo of ¹/
64
screen size can be
animated for just over half a minute. Larger screen sizes or smaller playout
memory sizes affect the maximum animation time pro rata.
Memory Allocated
128 256 512 1024
Standard Rate Frame Rate MB / Frame Max No. of Frames
1080i 59.94 29.97 7.91 16.1 32.2 64.4 128.8
Duration (s) 1/16
th
frame > 8.6s 17.2s 34.4s 68.8s
1/64
th
frame > 34.3s 68.8s 137.6s 275.2s
Moving images are constructed from component images using the Animation
Builder software provided as part of the Media Conversion Software (MCS)
package supplied with Imagestore 750.
Component images are imported into the animation builder utility from 32-bit
Targa image files thus allowing components to originate from almost any
computer graphics system.