Capture Card Features
The Vision range of capture cards include the VisionHD2-SQX, VisionDP2, VisionHD4, VisionAV-SDI, VisionAV-HD, VisionAV, VisionDVI-DL, VisionSDI2, VisionSD8, VisionSD4+1, VisionSD4+1S, VisionRGB-E1, VisionRGB-E1S, VisionRGB-E2, VisionRGB-E2S and VisionRGB-X2. Collectively the Vision family allow the capture of video and audio sources including Composite video (PAL, NTSC, SECAM and S-Video), HD up to 1080p (HDMI and Component), Serial digital interface (SD-SDI, HD-SDI and 3G-SDI), PC Graphics (DVI and analogue RGB), Dual Link DVI, DisplayPort1.2 4k at 60 fps, analogue audio, digital audio and provide an analogue line out pass through option for audio sources.
High performance data transfer (DMA)
Gets data to its destination quickly, allows high frame rate and pixel depths to be used.
- VisionSC range ~ 6.4 GB/s per card
- VisionDP2 ~ 6.4 GB/s
- VisionAV range ~ 800MB/s per device
- VisionAV ~ 800 MB/s
- VisionAV-HD, VisionAV-SDI ~ 1.6 GB/s
- VisionHD4 ~ 3.2 GB/s
- VisionRGB S range ~ 650MB/s per card (devices share the card bandwidth)
- VisionRGB-E2S ~ 650 MB/s
- VisionRGB-E1S ~ 650 MB/s
- VisionSDI2 ~ 650 MB/s
- VisionDVI-DL ~ 650 MB/s
- VisionRGB range ~480MB/s per card
- 4K / 30 fps / 16 bit pixel depth ~ 506 MB/s
- 1080p / 60 fps / 32 bit pixel depth ~ 475 MB/s
- 1080p / 60 fps / 16 bit pixel depth ~ 237 MB/s
- 720p / 60 fps / 16bit pixel depth ~ 105 MB/s
- 16 x CIF / 15 fps / 16 bit pixel depth ~ 50 MB/s
Datapath MultiStream technology
Independently control multiple instances of a capture from a single input source.
Independent cropping allows mosaic style inputs to be cropped into separate buffers or windows. A different pixel depth can be used for each input capture client including: RGB32, RGB24, RGB565, RGB555, RGB8, YUY2, YVYU,UYVY,NV12 and H264.
MultiStream technology does not require the data to transfer via system memory for depth, rate and size conversions.
Common hardware buffer timestamp
Synchronize video and audio data across all capture cards and inputs.
Hardware time stamping provides precise knowledge of when a frame is captured, allowing multiple buffers from different input sources to be synchronized. The start time stamp corresponds to the arrival of the first pixel of a field or frame within the Vision hardware. The hardware timer is synchronized with the systems high precision performance counter across all capture inputs in a system, regardless of whether they are from different physical capture cards. The units of the timestamp are in 100ns 'ticks' with a resolution of 100us. Timestamping functionality can be adapted for high resolution frame stitching across capture cards, stereoscopic interleaving and input signal calibration.
The audio buffer time stamp is represented by the first stereo pair sample captured into the hardware audio store. The common video and audio time stamp allows precision lip-sync streaming when the Datapath clock is used for rendering.
Datapath LiveStream: Capture technology
Low latency video and audio capture minimizes the delay prior to post processing.
The delay on a third-party graphics system is dependent on several factors, for example, if the data can be sent to the GPU directly or if transferred via system memory, how many buffers are queued, etc. Sample3c of the RGBEasy SDK shows the lowest implementation of latency using DirectX to DMA data directly to a GPUs memory back buffer.
Intel GPU and AMD APU display technologies can achieve a 1-2 frames of 'glass to glass' latency.
Rich user interface experience
Fast start up time using the interfaces provided by Datapath, Microsoft and Linux.
A Windows Kernel Streaming driver provides input centric endpoints for supported third party application use. Additional DirectShow filters exist for PiP (picture in picture), diagnostic transform filter for time stamp analysis and a NULL renderer for bandwidth analysis.
Windows and Linux single driver model
Single installation package for all Vision capture cards and operating systems.
A Video for Linux installation including support for the G-Streamer application is available for downloaded at the Datapath website. Card model dependent features will return an appropriate error when not supported.
Powerful hardware scaler
Adjust the incoming video size to your requirements.
Automatic video signal detection
Connect the input cable to start capturing.
Automatic signal scaling for video and audio
No concern for 'no signal' or 'on the wire' signal changes.
Both unlimited input count and signal type combinations
Use a variety of Vision cards together in a single system under the control of one application.
Flexible EDID management
Configure the capture card to force a particular input signal.
High performance flexible colour space converter
Convert input colour domains to output pixel depths without affecting performance.
Triple buffered hardware frame store
Motion perfect image capture.
- 256MB DDR2 Frame store on all VisionAV capture cards
- 128MB DDR Frame store on VisionDVI-DL capture cards
- 64MB DDR Frame store on VisionSDI2 capture cards
- 32MB DDR Frame store on VisionE1s/E2s capture cards
Text and bitmap overlay
Overlay text and images onto the capture buffer.
Unlimited HDCP capture sources onto Datapath graphics cards
View encrypted video content.
AMD DirectGMA and NVIDIA GPUDirect™ for Video
Reduce the capture delay seen on the monitor.
AMD DirectGMA and NVIDIA GPUDirect™ technology in conjunction with the LiveStream: Capture typically produces 2-3 frames of latency. 1080p/60Hz/true colour input to output rate. This rate includes capture, transfer and display. A 'peer to peer' DMA is setup and executed in this model.
Comprehensive software development kits
Take advantage of the Vision features easily and quickly.
The Vision SDKs can be found either within the Vision stand alone installation or as a separate downloaded from the Datapath website.
Hardware and software reliability
High reassurance for hardware and software reliability.
Electrical tests are tailored according to Vision card design and will be based around one or more technologies:
- Boundary Scan
- In-Circuit Test
- Flying Probe
- Functional Test
Prior to acceptance and shipping, all Vision hardware is functionally tested and re-inspected on site at Datapath.
Datapath hardware is certified listed accessory cards under IEC & UL 60950-1 – File number E345219. Each capture card includes a unique serial number, which is traceable back to bare printed circuit board.
Software is passed through both automated test procedures for regression testing and written test procedures, accredited by test certified personnel.
Speed and accuracy of support
Accessibility to technical engineering knowledge.
Datapath support responses are answered by specialized Vision hardware or software engineers.