7882DEC-H264HD-IPASI
HD/SD MPEG-2 and H.264 Decoder
Page - 36
Revision 1.0
WEBEASY
Gratuitous ARP Address:
When Gratuitous ARP is enabled, the Decoder Data port will ARP for the
IP address provided at an approximate 2 minute interval. A suggestion is to enter the default gateway
of the subnet. This will refresh the switches’ MAC address table and help to prevent a unicast flood
scenario.
IGMPv3 Mode:
This control allows the user to enable the use of the IGMPv3 mode.
IGMPv3 SSM Source <1-6>:
This control allows the user to set the IP addresses to be used while
forming the source filter for IGMPv3 communications.
Unicast Source Filter:
This control allows the user to enable or disable the Unicast Source filtering.
This control works similar to IGMP v3 SSM.
Unicast Source IP Address:
This control allows the user to enter a source IP address of a unicast
stream. The decoder will not accept the input unless the source IP matches in the unicast stream (if
enabled).
Unicast Source UDP Port Number:
This control allows the user to also filter by the UDP port of the
incoming unicast stream. The decoder will not accept the input unless the UDP port matches in the
unicast stream (if enabled).
SMPTE302 Mode:
This parameter allows the user to select how the SMPTE302 audio streams are
handled; the options include PCM, DolbyE and AC3.
Adaptive Latency:
This parameter allows the user to enable adaptive latency mode. This parameter
can also be configured to the Min latency mode.
When adaptive latency is configured “ON”, input stream
HRD parameters
are examined to
determine what buffer settings can be applied for the decoder.
When configured “OFF”, input stream
HRD parameters
are ignored and
the maximum buffer offset
is applied to the decoder as a safety precaution.
When configured “MIN”, input stream
HRD parameters
are examined to determine what buffer
settings can be applied for the decoder, but also more aggressively if HRD parameters are missing,
the decoder tries to infer from other parameters. This is an advanced setting, the user must be very
careful before setting the decoder to MIN adaptive latency mode. If the buffers are set to minimum
level and the HRD parameters are incorrect, this will result in a buffer underflow.
Switch Over Control
User Redundancy Mode:
This control allows the user to enable or disable redundancy mode on
input.
Active Source:
This monitor displays the active input.
Backup Input Source Select:
This control allows the user to select SFP 1 or SFP 2 as the backup
port.
Backup Input IP Address:
This control allows the user to specify the multicast address to be used
as backup.
Backup Destination UDP Port Number:
This parameter allows the user to select the destination
UDP port number of the backup streaming output.
