Technical data

SightLine Applications Command and Control

Bits 0..3 0 = Filter All Edges (Default)

1 = Disable All Filtering

2 = Disable Slice Edge Filter

Other values = Reserved

Bits 4..6 Reserved, set to 0

Bit 7 0 = Default

1 = Apply encoder fix to support hardware decoders (SLA-

1500 only, SLA-2xxx set to 0)

10 Adaptive Intra Refresh AIR Mega-Block Period (frames) * (Default 0)

Slice Refresh Row Number – number of rows to coded as each intra-slice*

(Default 0)

Reserved – See Set Ethernet Video Parameters (0x1A) to change Down

Sample and Frame Step for Ethernet video.

13 - 14

3000 only: [Optional] Network Display ID (0x0002=Net0,

0x0040=Net1,0x0042=both, else the command will be ignored), if not

present, then applies to both

NOTES:

• To use Mega-Block Period or Slice Refresh, I-Frames must be set to zero (0).

• Problem: Target bit rate parameter changes don't take affect unless I-frame interval changes.

• Solution: when user commands target bit rate parameter change:

◦ Change iframe interval to something random and set target bit rate to desired target bit rate

◦ Change iframe interval back to old iframe interval.

◦ Maximum bit rate: 10MBits (10000000)

Save Parameters (0x25)

Commits current parameters to flash. Parameters are then loaded when system restarts.

Byte offset Value Description

0 0x51 fixed header byte 1

1 0xAC fixed header byte 2

2 0x02 Packet length

3 0x25 Packet Type

4 0x42 Checksum