Group Projection HDTV Instruction Manual

4.4 Accessing DVS Disk Recorders

Together with ALICE comes the possibility to directly access

DVS HDTV and SDTV disc recorders. Direct access to disc

recorders is also possible via the command line interface

(CLIF).

The direct frame access uses the DVS API, and does not

need the DVS virtual file system to be installed. Frames

are accessed as raw YUV data, and converted to RGB

by the ARRILASER software. The conversion follows the

DVS SMPTE274cgr matrices, thus converting the video

save range into full 16 bit range.

Since the conversion is done at a very early processing

stage, the images are seen by the ARRILASER software

as 16 bit RGB images. They also require 16 bit LUTs for

recording, regardless of being stored as 8 or 10 bit

YUV on the disc recorder. Also, YUV data exported

from the disc recorder as YUV16 can be read, if given

the file extension ‘.yuv16‘.

4.4.1 Browsing Disc Recorders

To make disc recorders visible in the sequence dialog

panels, define their host names or ip addresses in the

‘preferred disc recorders‘ section within the ‘network‘ tab

in ALICE preferences. The entry is a comma separated list

of the disk recorders. Disk recorders can be specified by

ip addresses or by name. If specifying names, make sure

there is a domain name server entry for the disc recorders,

or list them in the windows host file

‘c:\winnt\system32\drivers\etc\hosts‘.

Conguration

4.4.1.