Streams monitoring and scrobbling
MediaStream Logger is professional multifunction software for stream quality measurements, monitoring, low-quality recording and recasting, with optional continuous live-streams comparison and scrobbling of mediabase. Results of measurements are logged locally and are accessible by SNMP.
Software works under Microsoft Windows on x86/x64 processors, operates as a service/daemon, and is 24/7/365/N oriented. In real time “MediaStream Logger” captures input DVB-/SDI-/analog signals and performs all of the above functions.
KEY FEATURES
- Firstly “MediaStream Logger” is a classical video archiver: input stream is recompressed into low-quality video and recorded into local storage in HLS-compatible format with optional recast into local network by DVB-IP UDP/RTP/HTTP protocols.
- Monitoring of emergency states and input signal quality:
- frame “freezes”, black signal, silence, carrier loss (if supported by underlying hardware).
- 0x47-sync loss, CC-errors, scrambling presence, bitrate, decoding capability control and visual degradation, basic TR 101 290 parameters.
- Live-streams’ content comparator. Two or more streams of the same program can be compared and Logger informs about periods when video/audio content was the same or become different. Streams of different quality and having some relative delay can also be compared.
- Scrobbling function allows recognition of the appearance of commercials on the air. Media assets or their fingerprints for recognition (dozens of thousands of spots) must be accessible locally by Logger. Each fact of spot recognition is logged with its probability by audio and video.
- Facts of recognition of DTMF-sequences, pieces of frame/image, pieces of sound, custom data in data-stream or SCTE-35 messages are logged and passed to consumers as notification by GPO or RS-232 or custom UDP or as SNMP trap.
Technical specification
Inputs:
- SD/HD-SDI from Deltacast, Blackmagic, Dektec.
- MPEG2/H264 video and MPEG1/AAC audio from DVB-IP Multicast/Unicast UDP/RTP with FEC, DVB-ASI/S/S2/T/T2/C/C2, HTTP, SRT, descrambled.
- analog CVBS.
Recast/recording: arbitrary resolution video in HLS or DVB SPTS MPEG2/H.264 with MPEG-1 or AAC audio. Recast is performed through Multicast/Unicast UDP/RTP with FEC, DVB-ASI, HTTP, SRT, or as HLS.
- For live comparison and scrobbling, even low-quality noisy analog signals are acceptable. Delay between the signals to be compared can be up to 30 seconds.
- Number of spots for scrobbling – up to 100 thousands spots of 30 seconds each.
- Multiscreen preview of live and history signals in browser over HTTP with HLS, up to 36 channels.
- Input stream BISS-descrambling.
- Video signal upscale and downscale.
- Reliability statistics: 99,999% uptime.
- SNMP state control and trapping.
- Continuous heartbeat generation (RS-232/GPO/UDP-IP) for quality measurements with threshold.
- Configuring: manually, conf-files.
Notes and requirements
To process DVB IP streams Intel/Broadcom NICs are strongly recommended.
To process DVB ASI system requires PCIe hardware from DekTec or Deltacast.
To receive DVB-S/S2/T/T2/C/C2, system uses any Windows-compatible hardware interface (BDA).
To capture SDI, a Deltacast, Dektec or Blackmagic interface is required.
To capture CVBS and high-frequency analog signal, Blackmagic Intensity, or any WDM-compatible devices of Multimedia Devices class (all TV-tuners) is required.
Recommended OS: Windows 10 IoT Enterprise LTSC with certain group-policy tuning.
Approximate resources consumption in simple scenario to recognize SCTE-35 messages and DTMF-tones: Intel Atom D525, 1 GB RAM to process 2-3 MPTSes of 70 Mbit each.
Approximate resources consumption in complicated scenarios: Intel Xeon E3/Core i7 Sandy Bridge, 8 GB RAM to process and compare 5-6 pairs of live SD-services encoded with h.264 with scrobbling, recompression, recording and network recast.