Set up a Live Channel
This page describes live channel creation and its features. Please note that live channel encoding is not available for trial users.
Live Channels Interface
To Encode a live channel in the platform:
Go to Encode Jobs --> Live. The Live Channels Channel List is displayed.
This page lists all of the encoded Live Channels and displays the details of the following:
Stream ID: The Stream ID can be sorted in ascending or descending order.
Channel Name: Name of the Live Channel.
Content ID: ID assigned by the platform when the Live Channel is created.
Copy Manifest URL: Manifest URL that is associated with the Live Channel.
Profiles: Number of profiles associated with the Live Channel.
User: Specifies the user name of the account that created or last edited the channel.
Status: Specifies if the Live Channel is enabled or disabled.
Edit: Opens the channel to enable editing of its parameters or to view realtime information about the status of an enabled active channel.
A user can:
Encode a Live Channel and live stream.
Edit an existing Live Channel.
Delete an existing Live Channel.
Creating a New Live Channel
To create a new Live Channel:
The Live Job page includes the following tabs, all of which contain configuration parameters:
General
Input
Profile
Base Codec
LCEVC
Extra
The settings in each of the tabs are described in the following sections.
General tab
The General tab specifies Live Channel set-up information. Most fields require input, and are indicated as mandatory by red asterisks.
Job name (mandatory): Enter a title for the Live Channel.
Template: Select an encoder job configuration template
Base Encoder: Select base encoder to (optionally) be enhanced by LCEVC
Rate Control: Select the rate-control mode for the job (either CBR of pCRF)
Package as: TS Chunks (Transport Stream) or M4S Chunks (Mp4 chunks)
Segment length (mandatory): Duration in seconds of packaged segments. Default value is 10.
Audio: Define Audio codec to be used. Default is AAC for H264/H265, Vorbis for VPX + AV1.
GOP: Define GOP (Group-of-pictures) length in seconds. Default is 2.0 seconds.
B-frames: Define number of B-frames to be used (if relevant). Default is Auto.
Input
This tab allows you to specify the input URL of your live source content in RTMP format. This can be pulled from the V-Nova RTMP server or pushed to with a custom generated URL.
Type of RTMP (Real-time Messaging Protocol) Source (Mandatory): Select the RTMP type from the drop-down.
V-NOVA RTMP SERVER: If the V-NOVA RTMP SERVER is selected, then the LCEVC platform automatically generates the RTMP URL.
CUSTOM RTMP SERVER: If the CUSTOM RTMP SERVER is selected, then the URL must be specified.
Choose Zone for RTMP Endpoint (Mandatory for V-Nova RTMP server): Select the Zone for the RTMP Endpoint from the drop-down.
Europe - London
US - East-North Virginia
RTMP URL (Mandatory for custom RTMP server): Enter a valid URL in the text-box.
Profile
The profile tab is the same as used in VOD jobs, a user must define all fields and profiles, or use the LCEVC Ladder builder. The platform will automatically create a cloud server instance with the required processing capacity to encode the profiles and codec parameters chosen.
Base Parameter tab
Similar to the VOD encoding parameters for x264/x265, the live x264/x265 encoding has the same set of parameters. The tab title and given parameters will change depending on the base encoder selected in the General tab. Settings will be left in default if not specified by the Template or Ladder Builder.
This tab enables adjustment of the common parameters for the base encoder that LCEVC is enhancing. If you require more, please make a request to enable the advanced parameter tab with a support query through the support link on the platform.
LCEVC Parameter tab
This tab controls the LCEVC tools. The default value for most of them is "Auto" which allows the LCEVC encoder to intelligently determine the best value depending on the other parameters of your encode job.
Extra tab for additional parameters
Only avalaible to those with advanced encoding parameteres enabled. Parameters should be entered as if raw into a FFmpeg command line. LCEVC's EIL parameters must have ';' after each one, including the final command specified.
Start Live Encoding
Once you have set all your parameters, you can either save as a draft or start the job by pressing 'Encode Live'. Once this is pressed it will go into a queue to launch an instance upon which to encode the channel.
Once either button is pressed you will return to the Live dashboard where you can monitor the status of the job.
Modifying an Existing Live Channel
To modify an existing Live Channel:
Click the Edit icon, you will see the details of options selected before. Additionally a User is presented with a statistics page to see the health of the instance.
In order to modifying a Live Channel you must first disable the job from the General tab. If the channel is active, the majority of controls will be disabled.
Any settings or fields can be updated and saved. Onece all changes have been made you can Enable the Transcoding once again from the General tab.
Deleting an Existing Live Channel
To delete an existing Live Channel:
Click on the check-boxes for any existing Live channels that need to be deleted, and click on the “Delete” icon. A confirmation dialogue box will be shown. Click on “OK” to delete or click on “cancel” to avoid deletion. Channels must be disabled before they can be deleted.
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