essence
The essence command is used to view and manage SMPTE ST 2110 media essences on the decoder.
Note
SMPTE ST 2110 must be licensed on the decoder, and the decoder personality set to ST 2110.
The media essences are distinguished by an ID number. The following table shows the ID that corresponds with each essence:
| 2110 Output | Essence | ID |
|---|---|---|
| 2110 Output 1 | Video | 10 |
| Audio | 11 | |
| Anc (Ancillary Data) | 12 | |
| 2110 Output 2 | Video | 20 |
| Audio | 21 | |
| Anc | 22 | |
| 2110 Output 3 | Video | 30 |
| Audio | 31 | |
| Anc | 32 | |
| 2110 Output 4 | Video | 40 |
| Audio | 41 | |
| Anc | 42 |
Synopsis
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Actions
Action | Description |
|---|---|
| start | Starts the media essence. |
| stop | Stops the media essence. |
| set | Configures media essence settings. A series of one or more parameter=value pairs can be specified at once. See Parameters below. |
get | Displays information on the media essence. You can specify to display the config (configuration), stats, or all. |
clear | Clears the media essence's statistics. |
Parameters
Parameter | Default | Description/Values |
|---|---|---|
| n/a | A unique name for the media essence (up to 63 characters). |
| n/a | The IP address of the media essence. This is typically a multicast address to which the ST 2110 data is being sent. |
| any | (Optional) The IP address of the media essence source for source-specific multicast. |
| n/a | The UDP port of the media essence. |
| n/a | The media type for the essence. Either video, audio, or (ancillary) data. |
| 96 (video) 98 (audio) 100 (data) | The RTP Payload of the media essence. [0...127] |
| 64 | IP Time to Live (ttl), specifies the number of router hops that IP packets from this stream are allowed to traverse before being discarded. [1...255] |
| IP Type of Service (tos), specifies the desired quality of service (QoS). This value will be assigned to the Type of Service field of the IP Header for the outgoing streams. [0...0xFF] | |
| 1000μs | (Type must be Audio) Specifies the duration of packets for the audio essence.
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Examples
# essence 10 get allReturns configuration information and statistics for the essence:
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Related Topics