Mividi HLS Server Tester



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Mividi HST200 - HLS Server Tester.

Software for stress-testing HTTP Live Streaming (HLS) servers. It can simulate up to 1000 HLS clients and monitor HTTP file downloading activities in all sessions, record test results and generate reports.

OTT video services are gaining more popularity every day. They are not only delivering video services for computers, smartphones and tablets. More video programs watched on traditional TV sets are being delivered by the OTT service as well. The OTT services are normally provided using one of the following media streaming protocols, including RTMP, RTCP, HTTP Live Streaming (HLS), and Smoothing Streaming.

HTTP Live Streaming (HLS) is an HTTP-based media streaming protocol developed by Apple Inc. It breaks the overall stream into a sequence of small files, each containing one short chunk of an overall finite or unbounded transport stream. The client app downloads the files using HTTP protocol and resembles the files into a continuous transport stream. Since the downloading uses only standard HTTP transactions, HLS is capable of traversing any firewall or proxy server that lets through standard HTTP traffic, unlike UDP-based protocols such as MPEG over UDP or RTP.

The HLS can be used for both live broadcast and VOD services. Unlike several other streaming methods, HLS does not require a special streaming server to provide the service. Instead, a standard WEB server is capable of delivering HLS service. Due to its simplicity and compatibility on client devices, more and more Internet media service providers are adapting this method.

The Mividi HST-200 system is designed for stress-testing HLS servers. It can simulate up to 1000 HLS service client sessions, each session will independently request media services, just like a normal client app. The software will monitor the media downloading activities in every session, record the data in a database, performs certain analyses and generate testing reports. It is a software program that runs on standard Windows 7, 8 or Server 2008 computers.


  • Simulates up to 1000 HLS client service requests
  • Supports live broadcast and VOD services
  • Plays VOD services in loop mode
  • Supports master playlist files with a list of alternate playlist URLs; Automatically starts client simulation sessions for all alternate bitrate streams listed in the master playlist file
  • Supports multiple client sessions to the same playlist URLs.
  • Downloads each media file in playlist files as defined in the HLS specification.
  • Remote user interface which can connect to multiple test servers.
  • Supports complete video rendering of a selected stream
  • Decodes PCR values and calculates stream bitrate

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