> VisionAV


HDMI, DVI, RGB, YPbPr, Composite video & analogue audio capture

Unified driver supporting multiple capture cards

Data transfer up to 800 MB/secs

Provides simultaneous SD and HD video capture through one channel of DVI-I or HDMI capture and one channel of composite video capture.

The VisionAV is a four lane PCI Express capture card providing up to 800MB/s bandwidth from the capture engine. The VisionAV has up to 256 MB buffer memory, enabling triple buffering for all video modes for tear free play back. It can also capture digital video for progressive and interlaced modes up to 4096x4096 resolutions to a maximum of 165 MHz pixel clock for DVI and 170 MHz for analogue RGB. This card provides HDMI audio capture and streaming from DVI Channel, as well as balanced and unbalanced analogue audio capture.

For an application case study using this capture card, click below:

Datapath capture cards help record high quality Rich Media presentations

Vision Range Features

The Vision range provides high performance DMA to system memory or direct to graphics memory with scatter gather, allowing for low latency fast frame rates in all applications. The complete range of Datapath video capture cards are supported by a generic Windows Vision driver and command line interface also supporting DirectShow and RGBEasy SDK.

A single Vision device supports up to 16 independent scale factors, colour spaces and frame rate clients. The Datapath capture cards have timestamp support for capture synchronisation across inputs, cards and systems. This is for use with edge blending, frame stitching, stereoscopic and many more applications using gen-locked sources.

The VisionAV has two independent video capture channels – one supporting HD capture and a second simultaneously accepting Standard Definition composite video. The VisionAV also adds analog audio capture, which can be perfectly synchronised with either video capture channel.

The High Definition signals are input via a DVI-I connector and can support HDMI, DVI, RGB and analog Component (YPbPr) video formats all at resolutions up to 4096 x 4096 pixels and supports 1080p (1920x1080) at 60 frames per second. The Standard Definition channel accepts composite video on a single RCA connector and can auto-detect between PAL, NTSC and SECAM formats up to 720x576 at 16 bit colour.

The VisionAV captures both video channels simultaneously and triple buffers them into onboard storage, alongside an audio stream that can be selected from the HDMI or analogue audio port. This data can then be processed and copied using DMA transfers to the host system for display, storage or streaming.


The VisionAV is an ideal solution for applications that require the capture of analogue or DVI sources in real time. Typical applications include capturing analog or DVI sources from PCs, MACs, industrial/medical equipment, cameras and other video equipment streaming video applications and video wall controllers.

Adding support for simultaneous analogue and digital audio capture makes this a versatile capture card for streaming, webcasting, video conference and many other applications.

Video Streaming Support

Direct WDM streaming driver supports the following applications, to encode, record and stream video over networks or the internet:

  • Dataton WatchOut
  • Microsoft Expression Encoder
  • Microsoft Windows® Media Encoder
  • VideoLAN VLC
  • NorPix StreamPix
  • VitualDub
  • Adobe Flash Encoder
  • VidBlaster
  • AMCap and other DirectShow compatible software

For further details see the Datapath DirectShow SDK documentation supplied as part of a typical installation.


A single Vision device supports up to 16 independent scale factors, colour spaces and frame rate clients, which enables multiple streams to be sent to and from the card at the same time in different formats.

Supports timestamp for capture synchronisation across inputs, cards and systems.
For the use with edge blending, frame stitching, stereoscopic and many more applications using gen-locked sources.

Flexible and configurable preferred mode EDID Management
Allows programming of custom EDID parameters including ‘Preferred Mode’

Low input to output capture latency
DMA to third party graphics vendors back and front buffers via Direct3D
Compatibility with AMD DirectGMA
Compatibility with Nvidia GPUDirect

Signal detection
VisionAV capture card detection of HDMI, DVI, VGA 5 wire, 4 wire, 3 wire, component and composite video, balanced, unbalanced and digital audio detection.
Additional Vision cards include video capture for SDI and DL-DVI input

Software Interfaces

Vision driver & command line interface
Supplied with a standard application for full control of any Vision capture card, this includes GUI’s for window properties, input settings, on screen display and EDID configuration.
The Vision application also includes a comprehensive command line interface for all GUI controls.

SDK for advanced audio and video control
Sample applications including low latency DirectX rendering

DirectShow SDK
Sample applications including AV encoding
SDK diagnostic transform filters
Kernel Mode - WDM video capture filters (crossbar required)
User Mode – Additional support for PiP, IAMStream control and cropping

Key Qualities of the VisionAV Capture Card:

  • HDMI, DVI, RGB, YPbPr, composite video and analogue audio capture
  • Dual Channel Video
    • Channel 1 - HDMI, DVI, RGB, YPbPr digital or analogue HD video
    • Channel 2 - Composite video - NTSC, SECAM and PAL
  • Flexible Audio Capture
    • Balanced (XLR) and Unbalances (RCA) from an optional module
    • Analogue audio capture*
    • HDMI audio through HD video channel
  • Datapath Unified Vision Driver
    • Multiple cards per system, 16 streams per channel
    • Frame sink and timestamping
    • DirectShow interface
    • RGBEasy API for advanced audio and video control
  • High quality up/down scaling (7x5 Polyphase Filter) the Vision range provides an excellent visual experience
  • Multiple channel audio and video capture
  • Multiple capture cards per system
  • Small form factor low power consumption
  • Fully integrated for use with Datapath WallControl-red video wall software for video wall applications
  • Support for Windows® XP / Vista / Server 2003 / Server 2008 / Windows 7 / Windows 8 / Server 2012 and Linux (NOTE: Check Linux specific features with Sales)
  • HD modes using the supplied DVI / Component Adapter or DV I/ HDMI Adapter, for HDCP contact Datapath
  • On card processor for real time mode detection - for trouble free connection to a wide variety of video sources
  • Support for YUV 4:2:2, RGB 5:5:5, 5:6:5, 8:8:8 video output formats providing compatibility with a wide variety of data streams

*Datapath is planning audio support for Linux, please contact Sales for further information.

Specification of the VisionAV Capture Card:

Board Format PCI Express x4 low profile card, 68.9mm x 167.6mm
Connectors (main board) DVI-I , RCA (female)
Connectors (audio board) HD15 (male) for connection of supplied audio Bbeakout cable:
Stereo line in (2 x RCA), stereo balanced in (2 x XLR), stereo line out (2 x RCA)
16-way header for connection to main board
HDMI Capture Supports HDMI 1.3 to 225 MHz (including deep colour modes). HDCP is supported when used with Datapath graphics cards
HDMI audio can be selected as source for audio streaming.*
Incorporates TMDS equaliser to support up to 20m cables
DVI Capture Supports DVI 1.0 RGB 24 bit capture to 165 MHz
Incorporates TMDS equaliser to support up to 20m cables
VGA/ YPbPr Capture Triple ADCs sampling up to 170 Msps. Full 4:4:4 sampling, 8 bits per colour
5-wire, 4-wire or sink-on-green signal format
Composite Video Capture CCIR601 sampling, PAL, NTSC, SECAM formats automatically detected
Audio Capture Stereo Line-In/ Stereo balanced inputs with programmable gain (+/-12dB)
16bit sampling at 44.1/ 48/ 96kHz
Analogue stereo line-out for direct passthrough of selected input at up to 64kHz sampling, sourced from Analogue input or HDMI channel
Video capture memory 256MB high bandwidth frame buffer supports triple buffering of HD and SD video
Local storage of complex scatter-gather tables for DMA engine (eliminates read overhead)
Video Processing Polyphase FIR scaling engine (7x5) for hardware downscaling and upscaling
Colour space conversion allows captured data to be transferred in any format:
  • RGB 16 bit (5-5-5, 5-6-5), 24 bit (8-8-8) or 32 (8-8-8 alpha)
  • YUV 16 bit (4:2:2)
  • Mono: 8 bit
DMA Engine Direct DMA to physical or virtual memory buffers with full scatter-gather support
DMA bandwidth: up to 800 MB/s
16 independent DMA streams: Any mix of HD and SD sources, colour space, cropping and scaling parameters
Operating System Support Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows Server 2012, Windows 7, Windows 8 and Linux support (NOTE: Check Linux specific features with Sales)
Power Requirements Max current at 12V - 0.5A
Max current at 3.3V - 0.2A
Thermal dissipation - 6.5 W
Operating Temperature 0 to 35 °C/ 32 to 96 °F
Storage Temperature -20 to 70 °C/ -4 to 158 °F
Relative Humidity 5% to 90% non-condensing
Warranty 3 years


We are continuously developing the technology used within our product ranges delivering outstanding innovative solutions, therefore the specification may change from time to time.

Models Available of the VisionAV Capture Card:

Product Name/Order Code  Description
VisionAV/F VisionAV/F Capture Card Capture card, Audio Module, full height bracket (for both cards), 1 x short ribbon cable and 1 x Audio Breakout Cable. Also supplied with DVI/ VGA Adapter, DVI/ HDMI Adapter, DVI/ Component Adapter
VisionAV/H VisionAV/H Capture Card Capture card, Audio Module, half height bracket (for both cards), 1 x short ribbon cable and 1 x Audio Breakout Cable. Also supplied with DVI/ VGA Adapter, DVI/ HDMI Adapter, DVI/ Component Adapter
VisionAV/B VisionAV/B Capture Card Capture card, fitted with full height bracket. Also supplied with half height bracket, DVI/ VGA Adapter, DVI/ HDMI Adapter, DVI/ Component Adapter. (Audio Module not included)


Your packing box should contain the following items:

  VisionAV/F VisionAV/H VisionAV/B
Base VisionAV Card
Audio Module Card ✓Fitted to base card
1 x Full height bracket ✓Fitted to base card ✓Fitted to base card
1 x Half height bracket ✓Fitted to base card
1 x Ribbon Cable Long
1 x Ribbon Cable Short ✓Fitted to base card
1 x Audio Breakout Cable
1 x DVI/ VGA Adapter
1 x DVI/ Component Adapter
1 x DVI/ HDMI Adapter
Installation CD

All products are shipped with the latest software available, unless stated otherwise. Special requirements may be organised by contacting our Sales team.

Where to buy

Datapath has a large network of distributors and resellers across the World.


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