Stirlitz Media Logger

The worlds most versatile broadcast media logger

Stirlitz Media Logger (SML) is TV & radio after-broadcast/compliance logging software that is different from other solutions, it is friendly for non-tech users and engineers alike. SML is software running on a standard Windows server (local or in the cloud), ideal for capturing single or multiple channels off MPEG-TS over IP. It’s scalable, affordable, easy to use and most of all, rock solid.

The unique Timeline based SML Player gives authorized users instant access to any part of the recordings. It is the most user-friendly Player on the market, suitable for both non-tech users as engineers and producers using either the Windows desktop application on workstations, or the SML webPlayer in web browsers on workstations and mobile devices (iOS & Android).

Integrate SML with 3rd party software, by using the SML webPlayer API that allows you to add webPlayer elements to any browser based interface, or to call for exports from the recorded logs.

The Stirlitz Media monitoring software suite includes:

  • Logger: capture, store and access multiple video, audio and metadata sources
  • IP Multiviewer: display one to many video sources in mosaics on one or more screens
  • MPEG-TS Monitor: full stream analysis, reporting, error and statistics logging, flexible alarms

The Stirlitz Media team has deep knowledge of IP video and audio and we use it to provide our clients with custom solutions for their projects. All our product is software-only and available for testing at no charge.


Features coming up with SML 6.0

  • H.265 and UHD sources support
  • automatic updates for Windows installed SML Player, no admin right required for installation
  • multi-server SML webPlayer (stations from many servers on one station list)
  • new H.264 server-side codecs, with GPU acceleration and improves performance
  • video freeze detection with configurable alarms
  • extended alarms for audio and video stations
  • MPEG-TS over IP broadcast from SML, for diagnostics or re-broadcast of captured MPEG-TS


New features, added with SML 5.5

  • CPU efficient, direct audio streams capture
  • improved capture for MPEG-TS and HLS
  • display and export of multiple DVB subtitle languages at the same time
  • improved Metadata support, including updates to Audiovault OnAir and Axia GPI
  • new Podcaster with full SML 5.5 support for audio and video
  • full DVB Teletext support


Main features SML 5:


  • up to 64 video video channels per server (with multiple audio & video proxies)
  • up to 256 audio channels per server
  • embedded and/or external metadata
  • GPI events


  • access recordings through SML (web)Player seconds after recording
  • on Windows workstations through SML Player (desktop application)
  • on Windows/OS X/Linux workstations & Android/iOS devices through browser based HTML5 SML webPlayer
  • embedded in 3rd party applications, through SML webPlayer API


  • SML Server software can run as a service or as desktop application
  • SML is optimized for operation in cloud
  • SML Server software runs on Windows Server 2016, 2012/2012 R2 (also supported: 2008 R2; Windows 10 Enterprise, Windows 7 Pro)

Sources, video

  • capture through IP: MPEG-TS UDP/RTP/HTTP, HLS, RTSP
  • capture through encoder/receiver: any source, including SDI, HDMI, CVBS, DVB–S/S2/T/C, ISDB, ATSC, ASI
  • capture through Blackmagic Decklink: SDI, HDMI, Analog (software H.264)
  • codec support: MPEG2, H.264, AC3, E-AC3, AAC, AAC+; also supports: 4:2:2 10bit H.264

Sources, audio

  • local audio through soundcards
  • local audio over IP through drivers
  • audio webstreams through Stirlitz Media virtual sound cards
  • radio off-air through multi-channel tuner cards


  • grab embedded metadata from TSoIP and off-air from tuner-cards
  • ingest text-based as-run logs from all major play-out systems
  • calculate loudness & report breaches (EBU R128, ITU-R BS.1770-1, ITU-R BS.1770-3)
  • register GPI events off IP or capture cards


  • manual, from SML (web)Player
  • automated/scripted, through Stirlitz Media Podcaster
  • on demand, through command line/URL
  • export formats, video: MPEG-TS (if source is MPEG-TS), MP4, MOV, WMV; audio: MP3, WAV

For all current features, see SML Specifications.

SML feature history

  • SML 2 – audio + metadata only, with Windows installed SML Player; optional: automated, scripted audio exports (SMP), audio content detection (SMI)
  • SML 3 – above + MPEG4 video off video capture cards (Euresys, Decklink)
  • SML 4 – above + webPlayer, direct RTSP, MPEG-TS UDP/HTTP capture, support for codecs: MPEG2, H.264, AC3, E-AC3, AAC, AAC+; recompression to H.264/AAC
  • SML 5 – above + HTML5 webPlayer (for mobile and desktop) with HTTPS support; built in multi quality proxy; direct HLS capture; RTP support; server runs as a service, optimized for cloud; automated, scripted video exports (SMP 5); new MPTS capture mode, 4:2:2 10bit H.264 Support
  • SML5.5 – above + CPU efficient, direct audio streams capture; improved capture for MPEG-TS and HLS; display and export of multiple DVB subtitle languages at the same time; improved Metadata support, including updates to Audiovault OnAir and Axia GPI; new Podcaster with full SML 5.5 support for audio and video; full DVB Teletext support