Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur télécharger pdf (Page 61)

61 9223-OM (V2.0)

• Video Buffer %, Audio Buffer %: The encoder has separate buffers for audio and

video. These buffers are used to temporarily store the bitstream if there is no enough

network and/or server bandwidth. However, if this situation persists, the buffers start to

fill up. These indicators report the current state of the buffers. If they overflow, data is

dropped. Ideally, these buffers should stay empty (close to 0%).

• Dropped Packets: If the buffers overflow, data is dropped. The encoder will drop entire

access units (an audio block or a video frame). This indicator has a count of the number

of access units dropped for the current connection. This count resets when a new

connection is established.

ASI Outputs Tab

The 9223 card has two ASI output ports that can be independently configured. Use this tab to

configure and manage the ASI output ports.

ASI Ports: Configuration Tab

The default appearance of the Configuration tab is:

The ASI Outputs table contains the current configuration of the ports, as follows:

• Status: Indicates the port status. It can contain the following values:

o OK: Port is operating normally.

o Unlocked: Port is unlocked. This means that the port is in Automatic Bit Rate

mode and it has no input.

o Overflow: Transmit overflow. This means that the ASI Output is in Manual

mode, and the configured bit rate is insufficient to carry the bitstreams connected

to it. This situation will raise an alarm as packets are being dropped.

• Size: Indicates the configured transport packet size, in bytes.

• TS Bit Rate (b/s): This reports the actual transport stream bit rate, in bits/second.

• Port Name: This reports the user-configured Port Name.

• Edit Button: Clicking on this button allows configuration of the port. The ASI Output

Configuration screen appears, with the settings for the selected port.

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Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur Page 61