ViewCast 450E, 240E manual Line Ntsc Vertical Format

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Osprey 240e/450e User Guide

525-Line (NTSC) Vertical Format

Figure 30. 525-Line (NTSC) Vertical Format

This control is only meaningful for NTSC users. It has no effect for PAL and SECAM 625-line video standards.

Select 480-line video for all normal applications. Select 485-line video for specialized applications.

When you select 480-line video, you can select which video lines should be the top line of displayed or captured video. For non-broadcast applications, all video lines starting with 21 / 284 can be part of the displayed video. In films and analog broadcast video, however, lines 21 and 284 are often used for Closed Caption. In broadcast video, lines 22 and 285 are sometimes used for proprietary ancillary data. If you use these lines for data they will appear as moving bands or streaks across the top lines. Therefore, the most generally useful start lines are 23 / 286.

Some broadcast video also uses additional top line pairs for ancillary data. We are seeing cases where the top line has to be set to lines 26 / 289 in order to hide all the data lines.

You can set start lines all the way up to 27 / 290. (On the PCI products which have a Direct Mode option, PostProcessing Mode must be set in order to have top lines below 23 / 286.)

When the start lines are below 23 / 286, the bottom of the video frame spills off the bottom of the 485- line NTSC-standard frame. In this case the driver adds black lines at the bottom of the frame.

Note: If you select start line 21 / 284, Closed Captions cannot be decoded. On the Osprey- 240e/450e, CC cannot be decoded if the start lines are 22 / 285 as well as 21 / 284.

Changes to this control take effect only when you stop and restart all video streams. You must stop all streams before you restart any.

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Contents Osprey 240e/450e User Guide Page Contents AVStream driver reference information Osprey 240e Environmental specifications Osprey 450e Page Overview Limited WarrantyWarranties Reseller Pass ThroughMinimum 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 windowVideo Proc Amp InputVideo Decoder RefSizeDevices and global controls OspreyConfig utility to access devicesInput tab Input tabVideo Input CancelVideo Present Video StandardInput 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 tabPowerLine Color EnableFrequency Anti Flicker Default BrightnessVideo Decoder tab Video Decoder tabOutput Enable Signal DetectedLines detected VCR InputRefSize tab Horizontal DelayHorizontal FormatSquare Pixels Horizontal FormatCCIR-601 Signal WSS Horizontal DelayWide Use WideScreenSource Width Source WidthVideo Type Format HW or SW Adds CPU Granularity Reference Size for Crop and Logo PlacementLine Ntsc Vertical Format Line Ntsc Vertical FormatFilters tab Currently UsingSimulStream DeinterlaceSimulStream option SimulStreamMultiple instances Osprey 240e/450e User Guide Deinterlace Adjust…Inverse Telecine Motion AdaptiveBackground − telecine and inverse telecine Current Using settings Currently Using groupMotion Threshold Adaptive Deinterlace windowFrame Algorithm Restore Defaults Test ModeClose 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 Timecode Video Marking ExtrasClosed Caption TimestampingCaptions tab Captions tabPin Select Render Logical White As Render Ntsc Closed Captions On VideoCC Pin CC PinFile and Color sub Tab Enable Key Color Enable Logo onLogo tab On File and Color Sub 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 tabDefault Output Enable CroppingReference Size 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 Video Renderer Efficient Video RenderingPreview Pin to Overlay Mixer 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 propertiesMono Source Mode Audio configurationAudio formats Audio playbackDual Mono Input reference level Audio levelEnvironmental specifications Appendix a Osprey hardware specificationsOsprey 240e 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 Color bars on video screen Appendix C TroubleshootingScrambled video image Multiple horizontal lines across video image Poor video quality at large frame sizesCannot play back recorded audio Osprey 240e/450e User Guide Page Index Appendix C Troubleshooting Osprey 240e/450e User Guide Viewcast.com