Playout (REST API)

Module description	REST API

Queries to control the Playout module.

Retrieving Current Loudness Parameters

The command allows retrieving the current Loudness status.

http://localhost:7901/playout?module_id=<N>&command=get_loudness

Parameter description:

POST – HTTP POST query.

<IP_ADDR> – server IP address.

<N> - Playout service sequence number (starts with 1).

get_loudness - command to retrieve current Loudness parameters.

Example of a generated response:

response.txt

enabled: ON
 
preset: 0
 
gain: 0.9
 
before: -22.0 LUFS
 
after: -22.6 LUFS

Description of parameters in the server response:

Parameter	Description

enabled

Status of the EBU-R128 Loudness normalizer at the time of the query: ON - enabled, OFF - disabled.

preset

Number of the currently used preset. Possible values: 0-3 (0 = Preset1 and so on). Preset values are specified in Playout module settings on the EBU-R128 Loudness tab. Presets are selected manually on the Status tab of the control panel, or using the EBU-R128 Loudness Preset Action.

gain

Amplification value at the time of the query:

value <1 - signal attenuation occurs,

value >1 - signal amplification occurs.

before

Current level value at the normalizer input in LUFS.

after

Current level value at the normalizer output, in LUFS.

The field displays the average value of 3 Integration Periods specified in Playout module settings on the EBU-R128 Loudness tab.