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Video network performance, Appendix b specifications – Grass Valley K2 System Guide v.7.2 User Manual

Page 216

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216

K2 System Guide

07 April 2010

Appendix B Specifications

Video network performance

K2 systems support streaming transfers to and from K2 Summit Production Clients,
K2 Solo Media Servers, K2 Media Clients, K2 SANs, Profile XP Media Platforms, or
any device that supports General Exchange Format (GXF) as described in SMPTE
360M.

Supported file input/output formats on K2 Summit/Solo/SAN

The K2 Solo Media Server, K2 Summit Production Client, and K2 SAN can send and
receive files of various formats using import, export, and transfer mechanisms.
Formats supported are as follows:

Parameter

Specification

Comments

Transfer bandwidth per internal storage K2
system

Up to 50 MBytes per second

Transfer bandwidth per Level 2 K2 Storage

50 MBytes per second

Transfer bandwidth per Level 3 K2 Storage

80 MBytes per second

Additional K2 Media Servers
dedicated as FTP servers add 80
MBytes per second each

Maximum concurrent transfers per transfer
engine

4 to 10, configurable on SAN

Additional transfers are queued.

Minimum delay from start of record to start of
transfer

20 seconds

This applies to both 60Hz timing
and 50Hz timing.

Minimum delay between start of transfer into
destination and start of play on destination

20 seconds.

Streaming
file format

Video
elementary
format

Audio elementary
format

File based

a

FTP stream

Other information

Import

Export

Import

Export

GXF

DVCPRO25
DVCPRO50
DVCPRO HD

b

DVCAM
MPEG-2

c

AVC-Intra

48 kHz,
16 bit, or
24 bit PCM,
Dolby-E, or AC-3

Yes

Yes

Yes

Yes

Streaming between
online K2 Systems
supports complex
movies and agile
playlists of mixed
format.

MXF

d

DVCPRO25
DVCPRO50
DVCPRO
HD

b.

DVCAM
D10

e

MPEG-2

c.

AVC-Intra

48 kHz,
16 bit, or
24 bit PCM,
Dolby-E, or AC-3

Yes

Yes

Yes

Yes

MXF OP 1A. See

“MXF

export behavior on K2
Summit/Solo” on
page 218

AVI

d.

DVCPRO25
DVCPRO50
DVCPRO HD
DVCAM

48 kHz,
16 bit, or
24 bit PCM

Yes

Yes

No

No

Type-2
(non-interleaved) DV
video only. Audio tracks
handled as stereo pairs.

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