Click image to enlarge H264-2SDI-PMC
Dual HD-SDI PMC Mezzanine H.264 Encoder

The H264-2SDI-PMC is an ultra low latency, dual channel,  H.264 encoder on a PMC Mezzanine form factor board with support for extraction of STANAG 4609 KLV Metadata from HD-SDI sources. The H264-2SDI-PMC provides a powerful and flexible solution for concurrently capturing and compressing high definition HD-SDI inputs to H.264/MPEG-4 AVC (Part 10) standard.

The H264-2SDI-PMC is ideal for time-critical, low latency IP streaming applications with Ultra Low Latency encoding of below 40ms. The flexible H.264 engine has a maximum throughput of 1080p60 allowing single channel @ 1080p60 or dual channel @ 1080p30.

The H264-2SDI-PMC supports extraction of STANAG 4609 KLV metadata (MISB 0605.3 compliant) embedded within the HD-SDI signal. The video and metadata are synchronized and transferred to the host system over the PCI bus for processing.


NB: Preliminary Information Subject To Change


  • 2x HD-SDI inputs with KLV
  • STANAG4609 KLV Capture from HD-SDI
  • Single channel encode at up to 1080p60
  • Dual channel encode at up to 1080p30
  • Ultra Low Latency encoder (below 40ms)
  • H.264/MPEG-4 AVC (Part 10) encoder
  • Intra-refresh to improve bandwidth utilization
  • Motion detection with motion vector information
  • PMC Mezzanine form factor
  • Drivers for Windows and Linux


  • Remote moving platforms
  • Remotely guided vehicles
  • UAVs
  • Vehicle cameras
  • Remote video surveillance
  • Electronic news gathering
  • Multi-camera systems
  • Traffic monitoring and control
  • Solid-state digital video recorder
  • Intranet/Internet video streaming


The H264-2SDI-PMC is supported by a set of well-documented and established SDKs that minimize development risk and shorten time to market for applications requiring video recording or streaming.

Supported Platforms Windows 10, Linux
PMC Interface
  • PICMG-2.0 Rev 2.1
  • 32bit PCI at 33MHz
Digital Video input ports
  • 2 x high definition HD-SDI input ports
Video capture resolutions
  • Flexible capture resolutions, 16×16 pixel granularity.
  • Standard resolutions supported include:
    • 1080p60, 1080i60, 1080p50, 1080i50
    • 720p60, 720i60, 720p50, 720i50
    • 480p60, 576p50
Ultra Low Latency Technology
  • Less than 40ms encode latency
Video Encoding
  • H.264 ISO/IEC 14496-10 baseline and Main Profile up to L4.2
  • Interlaced and progressive video encode support
  • Real-time multi stream H.264 Ultra Low Latency capture
  • Encoding up to 1080p60 (or equivalent multi channel encode).
  • Single channel encode at up to 1x 1080p60
  • Dual channel encode at up to 2x 1080p30
KLV Metadata
  • Extraction of KLV Metadata from HD-SDI as per MISB 0605.3
  • Supports MISB 0601 UAS Datalink Local Metadata Set
Bit rate control
  • Constant bit rate (CBR)
  • Variable bit rate (VBR)
Motion detection
  • Motion detection at macroblock granularity
  • Motion vector information
Configuration support per stream
  • Frame rate
  • Resolution
  • Bit rate control
  • Key frame interval
  • Intra-refresh mode
System Requirements
  • x86 Host Computer with 33MHz PMC site
  • 5V from PMC mezzanine site
  • Standard 2.91 x 5.87 Single-width PMC Mezzanine form factor
  • IEEE 1386.1 form factor
Operational characteristics
  • Extended temperature -40˚C to +85˚C (option)
  • Drivers for Windows, Linux
  • Comprehensive video recording SDK
  • Sample video recording application in C/C++ source code
H264-2SDI-PMC Block Diagram

Order Enquiry for H264-2SDI-PMC

Product Codes
  • H264-2SDI-PMC-EXT - Video Encoder (-40˚C to +85˚C)
  • H264-2SDI-PMC-VStream - RTSP Video Streaming SDK
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