Stirlitz Media Logger
The best broadcast & IP compliance Logger for TV, OTT & Radio

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 SD, HD or UHD channels off MPEG-TS over IP (H.264 & H.265). It’s scalable, affordable, easy to use and most of all, rock solid.

SML WebPlayer showing multiple stations with ratings.

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 non-tech users as well as engineers and producers. The webPlayer runs in modern web browsers on workstations and mobile devices (iOS & Android). Power users can opt for the Windows desktop Player.

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
    • IP Master Control Room: DVB & IP broadcast monitoring, visualization and multi-level QC.

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.


SML 6.6 - new features

In webPlayer

  • improved export options:
    • multi-segment export list building
    • segment selection and editing on timeline
    • segments re-ordering (drag & drop)
    • segment preview
    • on timeline: right-click selects a second, minute or hour; hold right and drag to select multiple
  • multiple video station playback
    • concurrent play/pause, move through time
    • concurrent metadata display (ratings)
    • select audio of one or multiple stations
    • concurrent select and export from multiple stations
    • display with or without CC/subtitles
  • CC/DVB subtitles display
  • EPG data display
  • improved (higher quality) AAC export
  • improved web browsers compatibility

In desktop SML Player:

  • export current video frame function

Server side:

  • webAPI for metadata access

SML 6.4

  • Improved H.265 and UHD sources support
  • playback of multiple video feeds concurrently in webPlayer
  • new metadata modes in webPlayer
  • new proxy modes and frame-accurate exports, with better quality, GPU acceleration and improved performance, new export profiles in webPlayer
  • new flexible alarms (e-mail, snmp, database, logs) with improved video freeze detection
  • AD authentication in webPlayer
  • Expanded SCTE35 presentation
  • ATSC CC support and searchable CC database
  • secondary online storage (Local or NAS/SAN - network over SMB protocol),
    now also for audio-only channels

Main features SML 6:


  • up to 64 SD/HD/UHD 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 2019, 2016, 2012/2012 R2 (also supported: 2008 R2; Windows 10 Enterprise, Windows 7 Pro)

Sources, video

  • 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: H.265, H.264 (incl. 4:2:2 10bit), MPEG2, AC3, E-AC3, AAC, AAC+

Sources, audio

  • local audio through sound cards
  • IP audio through drivers
  • webstreams
  • radio off-air through multi-channel tuner cards


  • embedded metadata from MPEG-TS: EPG, Teletext, multi-language subtitles, SCTE35
  • text-based as-run logs from all major play-out systems
  • loudness & report breaches (EBU R128, ITU-R BS.1770-1, ITU-R BS.1770-3)
  • GPI events off IP (SCTE35) or external devices


  • manual, from SML (web)Player
  • automated/scripted, through Stirlitz Media Podcaster
  • on demand, through webAPI
  • export formats, video: MPEG-TS (if source is MPEG-TS), MP4 and MOV (original or recompressed video or audio), 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
  • SML 5.5 – 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
  • SML 5.8 – multi-server SML webPlayer; AD authentication in webPayer; AD authentication and PCM audio playback in webPlayer; improved NTSC/ATSC support
  • SML 6.0 – H.265 and UHD sources; multi-server SML webPlayer; new H.264 codecs for proxy and frame-accurate accelerated export, video freeze detection and extended alarms; extended DVB subtitle support; MPEG-TS re-broadcast;