A Multiviewer source displays multiple video feeds in a grid-like view for monitoring purposes. It enables real-time monitoring and visualization of multiple video feeds in a single multi-viewer source, while displaying real-time statistics. ZEN Master offers two multi-viewer options:

Integrated Zixi Multi-Viewer (beta)– an integrated Zixi multi-viewer. This integrated option does not require any additional solutions. The Zixi multiviewer is currently in extended beta. Please reach out to your Zixi representative for details in how to participate in beta testing.
TAG Video Systems – ZEN Master also supports TAG Video System’s Multi-Viewer solution (e.g., MCM-9000). Existing TAG deployments can be used without the need for special integration. For more information see - https://tagvs.com/

ZEN Master manages Multi-Viewers as objects in ZEN Master through the Multi-Viewers screen. Before creating a Multiviewer source, you will need to configure at least one Multiviewer in the Multi-Viewers screen. For more detailed instructions, see Multi-Viewers section.

The TAG Multiviewer needs to be preconfigured with the desired layout configurations, the Encoder profile, and other video settings.

The following procedure describes how to add a Multiviewer Source in ZEN Master. In addition, an explanation of each of the configuration parameters is given in the table below.

To add a Multiviewer Source:

In the main navigation, click Sources.
Click + Add.
The Create New Source window is displayed.
Click on HLS.
The Create New Multiviewer window opens.
In the Info section, in the Name field, type a logical name for the Source.
In the Tags field, select one or more of the predefined Tags from the drop-down list.
Tags are used for access control. By selecting a Tag, you are relating this Source to that Tag. Tags are associated with certain roles (through the Users & Roles screen), and roles, in turn, are associated with users and user groups. If you would like to create a new Tag, see Creating a Tag.
In the Events Configuration Profile field, select from the dropdown list the profile that you would like to apply to this Source. By default, the Default profile is applied.

Events Profiles consist of a series of rules that determine precisely how various types of Events are logged and what results they trigger.
The Source's location is used to represent it in the proper position in the Map display (see Maps). By default, the location is determined automatically based on the Source's IP. If you would like to manually set the location of the Source (Optional), use th following procedure:
1. Click on the Edit icon next to the Location field.
  A search box is shown below the Location field.
2. Enter identifying info for the location (e.g. street address, zip code, coordinates).
  Search results are displayed below the search box as you type.
3. Click on the desired location.
  The selected location populates the Location field.
Under Inputs, under the Multiview Type, select one of the following:
- Zixi (Beta) – to use the Zixi Multiviewer.
- Tag – to use a TAG Video System’s Multi-Viewer solution (e.g., MCM-9000).
In the Multiviewer field, select the relevant Multiviewer from the drop-down menu. This list is populated by the objects that were configured in the Multi-Viewers screen.
For TAG option, in the Layout field, select the desired layout from the list of preconfigured layouts. These layouts are configured in the TAG system itself. After selecting the desired layout, an empty grid is displayed with empty rectangles to assign the desired sources from the list of sources.
In the Encoder section, select the relevant Encoder profile. Encoders are configured in the TAG system itself.
For the Zixi option, in the Width field enter the number of slots in each row and in the Height field enter the number of slots in each column.
In the Sources section, do one of the following:
- Click the + button to add the source to the first (top left rectangle) and repeat the process to add sources to the designated grid spots (left to right, top to bottom).
- Drag the source to the relevant grid slot.
In the Configuration section, in the Ingest Cluster field, select from the drop-down list one of the available Ingest Clusters as the destination for the Source.
In the Target Broadcaster/s field, select your broadcaster preference. Either select a specific broadcaster to be used OR specify your preference for using primary vs. backup broadcasters, options are: Prefer Primary Broadcasters, Primary Broadcasters only, Backup Broadcasters only or Prefer Backup Broadcasters.

For managed clusters, it is not recommended to select a specific broadcaster, as the broadcaster’s availability may not remain stable.
For the Zixi option, in the Profile field select a Transcoding Profile which will be used for encoding purposes. ZEN Master offers default profiles, but additional profiles can be configured. See Transcoding profiles.
In the Initial State section, select the Disabled checkbox if you would like to disable this Source upon initial configuration.
Select the Muted checkbox if you would like to disable error/recovery notifications for this Source upon initial configuration.

You can Enable/Unmute the Source at any time.
If you would like to adjust the advanced settings, click Advanced.
The Advanced settings window is displayed:
If you would like to track usage for this Source, enter your Billing Code details. See Billing Codes.
Click Save.

Multiviewer Source Configuration Parameters Table

Parameter	Description
Info
Name	Specify a name for the Multiviewer Source in ZEN Master
Tags	Select one or more of the predefined Tags from the drop-down list. Tags are used for access control. By selecting an Tag, you are relating this Source to that Tag. Tags are associated with certain roles (through the Users & Roles screen), and roles, in turn, are associated with users and user groups. If you would like to create a new Tag, see Creating a Tag.
Events Configuration Profile	Select from the dropdown list the profile that you would like to apply to this Source. By default, the Default profile is applied. Note: Events Profiles consist of a series of rules that determine precisely how various types of Events are logged and what results they trigger.
Location (Optional)	The Source’s location is used to represent it in the proper position in the Map display (see Maps). By default, the location is determined automatically based on the Source’s IP. Enter identifying info for the location (e.g. street address, zip code, coordinates) and select the desired location from the suggestions that are shown.
Inputs
Multiview Type	Select one of the following: Zixi (Beta) – to use the Zixi Multiviewer. Tag – to use a TAG Video System’s Multi-Viewer solution (e.g., MCM-9000).
Multiviewer	Select the relevant Multiviewer from the drop-down menu. This list is populated by the objects that were configured in the Multi-Viewers screen.
Layout	For TAG option, select the desired layout from the list of preconfigured layouts. These layouts are configured in the TAG system itself. After selecting the desired layout, an empty grid is displayed with empty rectangles to assign the desired sources from the list of sources.
Encoder	Select the relevant Encoder profile. Encoders are configured in the TAG system itself.
Width/Height	For the Zixi option, in the Width field enter the number of slots in each row and in the Height field enter the number of slots in each column.
Sources	In the Sources section, do one of the following: Click the + button to add the source to the first (top left rectangle) and repeat the process to add sources to the designated grid spots (left to right, top to bottom). Drag the source to the relevant grid slot
Source Configuration
Ingest Cluster	Select from the drop-down list one of the available Ingest Clusters as the destination for the Source.
Target Broadcaster/s	Select your Broadcaster preferences. Either select a specific Broadcaster to be used OR specify your preference for using primary vs. backup Broadcasters. Options are: Prefer Primary Broadcasters, Primary Broadcasters only, Backup Broadcasters only or Prefer Backup Broadcasters. Note: For managed clusters, it is not recommended to select a specific Broadcaster, as the Broadcaster’s availability may not remain stable.
Profile	For the Zixi option, select a Transcoding Profile which will be used for encoding purposes. ZEN Master offers default profiles, but additional profiles can be configured. See Transcoding Profiles
Public Output	If you would like to allow access to the stream directly through a supported player, select the Allow checkbox.
Enable Content Analysis	If you would like to enable Content Analysis (CQA), verify that this checkbox is selected (default). Note: It is generally recommended to enable Content Analysis unless it is causing technical problems. If Content Analysis is disabled, the system won’t detect errors in the video and audio content of the stream and won’t generate warnings for such events. Even when Content Analysis is disabled the system will still detect TR101 errors in the stream.
Monitor CEA-608/CEA-708 Closed Captions	If you would like to monitor CEA-608/CEA-708 closed captions, select this checkbox. Note: Monitoring CEA-608/CEA-708 Closed Captions requires using a version 14.4 or newer Broadcaster.
Disable Auto-Pull	If you would like to disable auto-pull, select this checkbox. Note: Disabling Auto-Pull will lock Channels using this Source to the Source's Ingest Cluster and Targets to the Source's current active Broadcaster. This setting only applies to Pass-Through Channels.
Auto-Pull Latency [ms]	Specify the desired latency for auto-pull actions. (Default: 1,000 ms).
WebRTC Playback	Select the desired playback method. Note: WebRTC enables you to monitor the stream via web browsers and mobile applications with real-time communication (RTC). WebRTC needs to be activated independently for each Source in ZEN Master (by default it is disabled). Select one of the following options: Disabled - users will not be able to view this Source using WebRTC (default). Pass-Through - passes the stream through to WebRTC without transcoding. This option can only be used if the input stream is already in a WebRTC compliant format (video - H.264 codec with Baseline or Main profile and no B frames, Audio - Opus codec). Auto - ZEN Master automatically transcodes the stream using the optimal profile for each specific user. In this option Zixi Broadcaster will decode the video, transforming it into RAW frames, which will be passed to the WebRTC library, where it will be re-encoded for each individual user. Note: Best quality. However, if monitored by multiple users this can consume extensive resources. 1080p/720p/480p/360p - ZEN Master transcodes the stream to a WebRTC compliant profile with the specified resolution. The transcoding is done by Zixi Broadcaster's transcoder. Note: This method requires a Zixi Broadcaster with X264 or Nvidia for transcoding. This method allows many users to monitor the stream without encoding separately for each individual user, which saves CPU capacity. Since there is only one stream resolution, it is recommended to encode to a low resolution and low bitrate so that the stream will be viewable by all users monitoring the stream.
Initial State
Disabled	Select this checkbox if you would like to disable this Source upon initial configuration.
Muted	Select this checkbox if you would like to disable error/recovery notifications for this Source upon initial configuration.
Advanced
Billing Codes	If you would like to track usage for this Source, enter your Billing Code details, see Billing Codes. (Supported for Broadcasters v14.8+)
Billing Password	Optionally specify a password for the billing code.
Auto-Pull Billing Code	If you would like to track usage for this Source when using Auto-Pull connections, enter the billing code that corresponds to this stream. The relevant billing can be obtained from the organization that received the billing code from Zixi.
Auto-Pull Billing Password	Enter the password that corresponds to this auto-pull billing code.
Auto-Pull MTU	Specify the maximum transmission unit (largest data packet that a network-connected device will accept) in bytes for the Auto Pull.
Frozen Video Minimal Duration	Specify the default minimal duration in seconds of frozen video after which the Broadcaster will trigger a Frozen video alert. Default: 10 seconds. This setting is supported for Broadcaster version 16.3 and higher. For existing sources, you may need to restart the source.
Blank Video Minimal Duration	Specify the default minimal duration in seconds of blank video after which the Broadcaster will trigger a Blank video alert. Default: 10 seconds. This setting is supported for Broadcaster version 16.3 and higher. For existing sources, you may need to restart the source.

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