Streaming Format Converter and Media Gateway – ILG200

Use Case 1: Convert Internet OTT Streams to UDP Streams

The Mividi ILG200 can convert input IP streams in HLS, RTMP, RTSP, and SRT formats to MPEG TS over UDP streams. In addition, it can also playout recorded media files in TS over UDP streams. In case that an HLS contains multiple variants, users can pick one specific variant for the output UDP stream. If the input stream is not in MPEG TS format, the software will re-multiplex video and audio data packets and create a multiplexed TS, then output the TS over UDP. The output UDP stream can be a single-program variable bit rate (VBR) or constant bit rate (CBR) TS. Video and audio transcoding is also supported so that the output video resolution, frame rate and codecs can be reconfigured to meet user requirements.

Output UDP channels can be created using multicast or unicast IP addresses. A single UDP output stream can be generated from multiple input source streams that are played out according to a preconfigured time schedule. Both live input streams and VOD streams can be used as input source for UDP stream output. The playout time can be scheduled in advance with repeat options.

The software can generate up to 25 HD or 40 SD simultaneous output UDP streams in a single system with recommended CPU, memory and NIC configuration.

Use Case 2: Transport Live Video over the Internet using SRT

Secure Reliable Transport (SRT) is a UDP based media transport protocol with low-latency and ability of re-transmission of lost packets. The Mividi Gateway provides a solution for transporting media using SRT. In a typical configuration, two Gateway systems can be used as two end-points. One is used as a transmitter which converts various input streams such as UDP streams to SRT streams, and the other one is used as a receiver which receives the SRT streams and convert them back to UDP streams. If a stream processor on the remote site can receive SRT streams directly, it can also be used as an end-point. In addition to UDP streams, other type of input streams including RTP, RTMP, RTSP can also be converted to SRT streams for media transport.

Use Case 3: Media Transcoding and Segmentation for HLS and MPEG-DASH Streaming

The Mividi Gateway can be used to generate media segment and manifest files for HLS and MPEG-DASH streaming. In a typical configuration, the Gateway system will receive a multicast UDP stream as an input source, re-encode the video stream to generate multiple variations with different frame size, frame rate and bit rate. Afterwards, it will package the newly encoded video content and generate segment files for HLS or MPEG-DASH, along with the playlist or manifest files. These segment files can either be used by a local Windows Server for HTTP streaming or transferred to a remote streaming server, such as a content server provided by a CDN service provider. For HLS, the software also supports AES-128 encryption. The delivery of media content to CDN origin server is automatically completed using FTP.

Cloud-ready Software Solution

The Mividi ILG200 is a software program that runs on standard Windows platforms, including Windows 10, 11 or Windows Server 2012, 2016, 2019 or 2022 OS. The main application is a Windows service program that can run 24x7 unattended once the input sources and output channels are fully configured. The software is very easy to use and maintain.

The software is fully cloud-ready. It runs on standard public cloud such as Microsoft Azure and Amazon AWS services. It does not require any special hardware beyond those offered by the standard servers in cloud services.

The ILG200 software is based on the client/server software architecture. The main stream processing functions are contained in the server module. The client application provides a user interface for viewing the status of input and output streams, and configuring the server application. The client application can also run on remote computers in the same LAN for remote access to the server module. Multiple client applications can access the same server at the same time by different users. In addition, a single client application can also be used to link multiple ILG200 servers in different locations and manage these systems from a single access point.

To input and output streams, the standard network adapters can be used. 1G or 10G NICs are supported.

Automatic Error Detection and Alarms

The ILG200 system will continuously monitor the input and output streams for stream errors, including:

• The loss of input or output streams
• The loss of audio or video component
• Frozen or black video frames

By monitoring its own output streams, system or software failure can be detected.

The system provides multiple ways of sending error alarms, including email, SMS, Slack channels, audio sound and SNMP traps. The alarm triggers can be configured for each error type. A full SNMP MIB is also provided for polling error status.

All errors and alarms are logged in the database and can be reviewed at a later time. Error and alarm records can be searched and exported in text format. Reports can be generated to summarize the error trend over a period of time.