ViewCast 450E, 240E manual Osprey 240e/450e User Guide

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Osprey 240e/450e User Guide

Motion Adaptive – 2-frame. Once that is done, other factors to reduce processing time are the following:

Set Deinterlacing to Off rather than Motion Adaptive – 2 Frame for absolute minimum processing time.

Set gamma correction to the default, 100.

For SECAM video, set the hue adjustment to the default, zero.

For 525-line (NTSC) video, either:

Set Square Pixel (640 x 480) reference size, and capture full sized, 640 x 480 video

Set CCIR (720 x 480) reference size, set Source Width to 720, and capture full sized, 720 x 576 video

For 625-line (PAL/SECAM) video, set CCIR (720 x 576) reference size, set Source Width to 720, and capture full sized, 720 x 576 video.

Set the client application for YUY2 color format.

Turn off logos and on-video caption rendering.

After you take these steps, latency will be 1 msec or less if the capture destination buffers are in system memory (they will be in system memory except in some direct-render-to-screen applications).

When you enable diagnostics, the latency is shown in a line of the form, latency per frame msec = 0.8554164, meaning that video frame delay from capture to return to client is 0.85 msec.

Notes

When you select Auto mode, some kinds of content cause the driver to frequently switch between Inverse Telecine and Motion Adaptive processing. Content such as title sequences and commercials are often telecine, but cuts between scenes generally break the telecine sequence, forcing the driver to resynchronize. It takes it a number of frames to lock on to the new sequence. The driver drops back to the Motion Adaptive algorithm as soon as it becomes aware that telecine sync has been lost. However, it may take it several frames to discover that this has happened; these frames are not correctly deinterlaced.

If the content is consistently telecine, that is pure movie content, then either Auto or Inverse Telecine is recommended for perfect recovery of the original progressive format.

If the content is telecine with post-detelecine video-based editing, Auto mode results in the best overall quality – but several frames may not be deinterlaced every time the pull down phase sequence has to be relocked.

If the content format is a rapidly changing mix of telecine and video, or is all video, or is of unknown type, the Motion Adaptive setting gives the most consistent results. The quality of telecine sequences is not the best possible, but there are no instances of frames not deinterlaced at all due to telecine re-locking.

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Contents Osprey 240e/450e User Guide Page Contents AVStream driver reference information Osprey 240e Environmental specifications Osprey 450e Page Reseller Pass Through Limited WarrantyOverview WarrantiesMinimum system requirements System requirementsInstalling the driver Installation StepsInstalling the video capture card Custom installing AVStreamTo install the video capture card Digital Signature Not Found Window Accessing the Osprey Config Utility Setting Driver PropertiesInitial OspreyConfig user interface OspreyConfig’s initial processing sequenceSelecting a device for configuration Control used to open the properties Osprey Video Device Properties window tabs Understanding the device properties windowRefSize InputVideo Proc Amp Video DecoderDevices and global controls OspreyConfig utility to access devicesInput tab Input tabVideo Standard CancelVideo Input Video PresentInput tab without AV option Osprey 450e AV option hardware add-on-deviceOsprey 450e Video inputVideo Standard field Video standardComposite camera Input Format analog inputsVideoGraph VideoCheckVideoGraph VbiGraphVideo Proc Amp Tab Video Proc Amp tabBrightness Color EnablePowerLine Frequency Anti Flicker DefaultVideo Decoder tab Video Decoder tabVCR Input Signal DetectedOutput Enable Lines detectedFormat Horizontal DelayRefSize tab HorizontalCCIR-601 Horizontal FormatSquare Pixels Use WideScreen Horizontal DelaySignal WSS WideSource Width Source WidthVideo Type Format HW or SW Adds CPU Granularity Reference Size for Crop and Logo PlacementLine Ntsc Vertical Format Line Ntsc Vertical FormatDeinterlace Currently UsingFilters tab SimulStreamSimulStream option SimulStreamMultiple instances Osprey 240e/450e User Guide Motion Adaptive Adjust…Deinterlace Inverse TelecineBackground − telecine and inverse telecine Current Using settings Currently Using groupFrame Algorithm Adaptive Deinterlace windowMotion Threshold Close Test ModeRestore Defaults Osprey 240e/450e User Guide Device tab Buffers Requested No-Video Test PatternDiagnostic Logging Diagnostic loggingTypical section of data Board Numbering Device InfoBoard Numbering Setting Driver Properties Timestamping ExtrasTimecode Video Marking Closed CaptionCaptions tab Captions tabPin Select Render Logical White As Render Ntsc Closed Captions On VideoCC Pin CC PinOn File and Color Sub tab Enable Logo onFile and Color sub Tab Enable Key Color Logo tabOsprey 240e/450e User Guide Pin Select File and ColorEnable Key Color Enable Key ColorPosition and Size WeightingOsprey 240e/450e User Guide Size and Crop tab Size and Crop tabReference Size Enable CroppingDefault Output Reference SizeFormat Horizontal Vertical GranularityEnable Cropping Enable CroppingRecalc button Default Output Size Default Output SizePage DirectShow AVStream driver reference informationAVStream Driver Reference Information Post-Processing mode Post-Processing modeAVStream Driver Reference Information Preview Pin to Overlay Mixer to Video Renderer Efficient Video RenderingPreview Pin to Video Renderer Video Mixing Renderer Preview Pin to VMR7Some Data Points Preview Pin to VMR9AVStream Driver Reference Information Color formats Video standards and sizesYUV format details Closed captioning CC Captioning via CC or VBI pinsDirect CC rendering on video Vertical Interval Timecode Vitc CC streaming interfaceTimecode Video Marking Vertical Blanking Interval VBI captureAudio driver Selecting the audio source and input volumeAudio Driver Audio properties Audio propertiesAudio playback Audio configurationMono Source Mode Audio formatsDual Mono Input reference level Audio levelOsprey 240e Appendix a Osprey hardware specificationsEnvironmental specifications Osprey 240e long back plate Osprey 450e back plate Osprey 450eAppendix a Osprey Hardware Specifications Appendix B Osprey 450e audio cable Mini-DIN Signal RCA ConnectorsPage Scrambled video image Appendix C TroubleshootingColor bars on video screen Cannot play back recorded audio Poor video quality at large frame sizesMultiple horizontal lines across video image Osprey 240e/450e User Guide Page Index Appendix C Troubleshooting Osprey 240e/450e User Guide Viewcast.com