The Mividi WSM120 provides a low-cost multiviewer monitoring solution for Internet streaming video. It supports IPTV, OTT video services using HLS, MPEG-DASH, RTMP (Flash) protocols, Internet based video transport using SRT and RTSP streaming. It can also monitor uncompressed video via SDI, HDMI or NDI interfaces. It can be used for live broadcast as well as VOD monitoring.

Low-Cost Multiviewer Monitoring System for Internet Streaming Video (HLS, MPEG-DASH, RTMP, RTP)
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Internet Streaming Video Monitoring Solution

Mividi WSM120 is a multiviewer monitoring system designed for monitoring IPTV and Internet streaming video services. It supports most common IPTV and Internet Streaming media protocols including UDP, RTP, HTTP, HLS (HTTP Live Streaming), MPEG-DASH, RTMP, RTSP and MMS. It also supports SRT, NDI and uncompressed video via SDI and HDMI interfaces.

The system provides a real-time view of multiple video services coming from different streaming servers. Streams with different streaming protocols can be monitored in the same time. It can simultaneously display up to 60 SD or 30 HD video services using a single computer. Additionally, the system supports video rotation when more video displays are needed.

The system can be used for monitoring both live broadcast and VOD streaming services. Hundreds of VOD streams can be bundled together and the monitoring software will request the VOD services using their playlist URLs one by one, decode and display the videos. The test can be looped around and visual alarms are triggered when the video streaming service is interrupted.

The system displays video content and audio VU bars, and calculates audio loudness level. The monitoring system is built on standard PC or servers using Windows 10, 11 or Windows Server 2012, 2016 or 2019. Mividi supplies fully-built systems or software which can be installed on customers’ own hardware. The cost for setting up such a monitoring system is very low, and it is easy to use and maintain.

Flexible Multiviewer Display

The WSM120 supports multiviewer display of videos and audio PCM levels of IPTV or Internet video streaming services. It also calculates audio loudness and displays the loudness value along with video images. Additionally, the system can decode and display DVB subtitles and ATSC closed captioning data.

Each monitoring system can support up to four monitoring panels for multi-image display using graphic card features. The display panels can be configured in terms of size and location. A selected video can also be displayed in full screen mode, along with sound output. Audio-only program display is also supported.

The system takes transport stream input using an IP interface. It can simultaneously monitor many different streams. Most of common streaming protocols are supported.

Multiviewer Monitoring System Configuration Windows

Live Broadcast and VOD Monitoring

The Mividi WSM120 supports both live broadcast and VOD monitoring. To play live broadcast video, simply map a URL to a display panel. When more than on URLs are mapped to a display panels, the system will start to rotate among multiple streams. Similarly, multiple VOD stream URLs can be mapped to one display panel and VOD streams can be played in turn. When all VOD streams are finished, they can be replayed in an infinite loop.

The system supports MPEG-2, AVC (H.264) and HEVC (H.265) video encoding formats, as well as commonly used audio formats including MP3, AAC, AAC plus, and AC3. It supports ATSC closed captioning and DVB subtitles. When there are multiple audio streams present in a program, users can select specific audio streams to display.

The system supports multiviewer screen capture, and can encode and stream the capture to a remote location using HTTP or RTP protocols for network-wide monitoring.

Video Wall error monitoring

Stream Error Monitoring

The software is able to detect the following stream errors to alert users:
  • Loss of input streams
  • Loss of video or audio component
  • Drop of video or audio frames
  • Black and frozen video frames
  • Audio loudness level is out of user specified bound

Visual, Email and SMS Alarm

The system provides visual, sound, email and SMS alarms on the loss of input stream, or missing audio and video components. The visual alarm is shown as red flashing boundary of a display panel with audio sound. The email alarm can be configured using a standard SMTP mail server. The SMS messages require the access to a local SMS service provider.

Remote Multiviewer Monitoring

The Video Wall display panel can be captured and streamed for remote view so that users can see the multiviewer screen from home or a remote office. The video streaming uses one of the following three protocols: UDP, RTP and HTTP. The streaming video can be viewed on a remote location using a streaming video player that plays UDP, RTP or HTTP videos, such as the VLC Player or a TV Set-top box.

Remote Multiviewer Monitoring

Application Examples

  • Broadcast monitoring
  • Satellite center & cable head-end monitoring

  • Mobile production and ENG (Electronic News Gathering)
  • Internet broadcast monitoring


  • Supports multiple streaming protocols:
    • UDP/RTP Unicast or Multicast
    • TS over HTTP
    • HLS (HTTP Live Streaming)
    • RTMP (Flash media)
    • RTSP
    • MMS
  • Supports uncompressed video via SDI or HDMI input
  • Supports NDI video input
  • Supports SRT (Secure Reliable Transport)
  • Supports SPTS (Single program transport stream) and MPTS (Multi program transport stream)
  • Different Services can be monitored on one or more flat panel monitors with HDMI/DVI inputs, including:
    • Video Signal
    • Audio Levels and Loudness
    • DVB-Subtitles and Closed Captioning
    • Teletext (Subtitles, Newsflash, Interrupted, Subpages)

  • Supports MPEG-2, AVC/H.264, HEVC/H.265 video encoding
  • Supports MP3, AAC, AAC+, and AC3 audio encoding
  • Supports round-robin video display rotations
  • Supports live broadcast as well as VOD streaming monitoring
  • Flexible and easy Multiviewer configuration
    • Monitoring panel can be divided into arbitrary number and sizes
    • Support full screen display and sound output
    • Name each display panel with a user-friendly name
    • Fast map of URLs to display panels
    • Analog and digital clock display
  • Checks black and frozen frames
  • Calculate and checks audio loudness level
  • Visual and audio alarms for the loss of input signals.
  • Captures and encodes multiviewer screen, and streams the encoded data to a remote location using HTTP or RTP protocols for network-wide monitoring.


Maximum Numbers of Streams (for general reference only)

i7 (with 6 cores) 55 50 25 20
Dual Xeon (each with 10 cores) 60 60 35 30

(Audio, Teletext, DVB subtitle or closed caption decoding do not use a lot of CPU power. Performance may vary depends on the stream bitrate and detailed encoding parameters.)


  • UDP/RTP Unicast or Multicast
  • HTTP or HLS (HTTP Live Streaming)
  • RTMP (Flash media)
  • RTSP
  • MMS
  • SRT (Secure Reliable Transport)
  • NDI
SDI & HDMI Uncompressed video


DVI or HDMI Up to four monitors via Nvidia® graphics card
Audio 3.5 mm mini jack

OS & Hardware Requirements:

OS: Windows 10, 11 or Windows Server 2012, 2016, 2019
RAM: 4 GB minimum
Hard drive: 500 GB minimum
Graphic Cards: Nvidia® with minimum of 2GB graphic memory
Network Connectivity: 1 GB NIC adapter
Conformities: UL, CSA, CE, RoHS

Multiviewer Monitoring System IMS and WSM Feature Comparison

Feature IMS120 WSM120
Transport Stream Source
Multiviewer Display
Visual Alarms on Multiviewer Display
Remote View of Multiviewer Screen Capture
Transport Stream Analysis  
Transport Stream Error Monitoring  
Transport Stream Error Alarms  
IP/HTTP Layer Analysis  
Transport Stream Recording  
Internet Access and Remote Management  

The Mividi Low-Cost Multiviewer Monitoring System for Internet Streaming Video provides several options for customers to choose:

Product Code: WSM120
Purchase options: Software only You can select a product model
Fully built systems

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