ViewCast Osprey-450e, Osprey-240e manual Direct CC rendering on video

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AVStream Driver Reference Information

The driver has three built-in user-accessible controls that affect Closed Captioning.

∙On the RefSize property page, in the control group shown below, 480-line video must be selected and the radio button to start video at either Lines 23/286 or Lines 22/285 must be selected.

∙On the Captions property page, most of the controls relate to the driver’s internal direct rendering on video. The following control selects field 1 or field 2 as the field to be streamed through the CC pin. This control is per-filter; both available pins on the filter are set the same way. For SimulStream users, the pins on different filters can have different settings.

∙On the Device -> Extras… property page, you have the choice to set with Normal or AVI- Compatible timestamping of Closed Caption samples.

This control is a workaround to an apparent problem in DirectShow – if you attempt to capture a CC character pair stream to an AVI file with Normal timestamping, the file becomes extremely large and the capture will fail within a few seconds. The AVI-Compatible mode allows capture of CC to AVI.

Unfortunately, the problem with timestamping means that time synchronization between the video and CC streams depend on their physical interleaving in the file, so that time synchronization is poor. If the AVI file is set up to be non-interleaved, synchronization is not good. If the AVI file is set up to be interleaved, synchronization is poor.

For all applications other than capture to AVI, this control should be set to Normal. WME9 among others requires the Normal setting if CC is used.

Windows Media Player does not play back an AVI file with an embedded CC stream. The following GraphEdit filtergraph plays back an AVI file containing a video stream plus a CC stream, with the CC rendered on the video:

Direct CC rendering on video

The driver can render closed captions directly onto capture or preview video. The captioned video can be encoded, written to file, or rendered directly to the screen.

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Contents Osprey 240e/450e User Guide Page Contents Selecting the audio source and input volume Osprey 240e Environmental specifications Osprey 450e Page Limited Warranty OverviewWarranties Reseller Pass ThroughSystem requirements Minimum system requirementsInstallation Steps Installing the driverCustom installing AVStream Installing the video capture cardDigital Signature Not Found Window Page Setting Driver Properties Accessing the OspreyConfig UtilityOspreyConfig’s initial processing sequence Initial OspreyConfig user interfaceSelecting a device for configuration Control used to open the properties Understanding the device properties window Logo CaptionsSize and Crop OspreyConfig utility to access devices Devices and global controlsInput tab Input tabCancel Video InputVideo Present Video StandardOsprey 450e AV option hardware add-on-device Input Tab without AV optionVideo standard group Input Format group analog inputsNotch Kill Video Proc Amp tab VideoProc Amp TabColor Enable PowerLineFrequency Anti Flicker Default BrightnessVideo Decoder tab Video Decoder tabSignal Detected Output EnableLines detected VCR InputRefSize tab Horizontal Format Horizontal Delay Horizontal DelaySource Width Source WidthReference Size for Crop and Logo Placement Line Ntsc Vertical FormatSetting Driver Properties Currently Using Filters tabSimulStream DeinterlaceApply Help SimulStream SimulStream optionMultiple instances Show Filters Adjust… DeinterlaceInverse Telecine Motion AdaptiveCurrently Using group Motion adaptive deinterlaceMotion Threshold Adaptive Deinterlace windowSmooth Motion Test Mode Restore DefaultsSharp Motion CloseDevice tab No-Video Test Pattern Buffers RequestedDiagnostic logging ExtrasTimecode Video Marking Closed CaptionOsprey 240e/450e User Guide Device Info Device InfoCaptions tab Pin Select CC PinCapture PreviewRender Ntsc Closed Captions On Video Render Logical White AsCC Pin CC PinEnable Logo on File and Color sub Tab Enable Key ColorLogo tab On File and Color Sub tabSetting Driver Properties File and Color Pin SelectEnable Key Color Enable Key ColorWeighting Position and SizeLogo position and size Size and Crop tab Size and Crop tabReference Size Granularity Granularity Alignment Format Horizontal VerticalEnable Cropping Enable CroppingRecalc button Default Output Size Default Output SizeAVStream driver reference information DirectShowAVStream 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 Preview Pin to VMR7 Video Mixing RendererPreview Pin to VMR9 Some Data PointsAVStream Driver Reference Information Video standards and sizes Color formatsYUV format details Captioning via CC or VBI pins Closed captioning CCDirect CC rendering on video CC streaming interface Vertical Interval Timecode VitcVertical Blanking Interval VBI capture Timecode Video MarkingSelecting the audio source and input volume Audio driverAudio Driver Audio properties Audio propertiesAudio configuration Mono Source ModeAudio formats Audio playbackInput reference level Audio Driver Environmental specifications Appendix a Osprey hardware specificationsOsprey 240e Osprey 240e long backplate Osprey 450e Osprey 450e backplateAppendix a Osprey Hardware Specifications Mini-DIN Signal RCA Connectors Appendix B Osprey 450e audio cablePage 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 Video rendering Viewcast.com

Osprey-450e, Osprey-240e specifications

The ViewCast Osprey series, particularly the Osprey-240e and Osprey-450e, represents a significant advancement in the field of video capture and encoding technology. These high-performance video capture cards are designed to meet the growing demands of professional broadcast environments, video production, and live streaming applications.

The Osprey-240e offers a compact design while delivering excellent performance. It is equipped with dual channel input capabilities, allowing users to capture multiple streams simultaneously. This feature is particularly beneficial for broadcasters and content creators looking to streamline their workflows. The Osprey-240e supports a variety of input formats including SDI and HDMI, ensuring compatibility with a wide range of video sources. Its robust encoding capabilities allow for real-time video streaming in HD resolution, making it suitable for live events, webinars, and other digital content delivery applications.

On the other hand, the Osprey-450e takes video capture to the next level with enhanced capabilities. It supports up to four channels of video input, making it an ideal solution for multi-camera setups. The Osprey-450e also boasts advanced encoding technologies that facilitate high-quality video compression without sacrificing performance. This model is particularly well-suited for enterprise-level applications where high-definition video quality is paramount. Users can experience lower latency and improved encoding efficiency, resulting in smoother viewing experiences for end-users.

Both models feature powerful drivers and software support that integrate seamlessly with a variety of video production and streaming applications. The Osprey series is designed with user-friendly interfaces, making it accessible for both seasoned professionals and newcomers alike. The cards are also compatible with many of the industry-standard software solutions, enabling users to harness the full potential of their video content.

These capture cards also prioritize reliability and durability, ensuring long operational life even under demanding conditions. Their efficient thermal management systems keep components cool during extended use, thereby enhancing performance consistency.

In summary, the ViewCast Osprey-240e and Osprey-450e deliver impressive features tailored for a range of video applications. Their support for multiple input channels, advanced encoding technologies, and strong software compatibility make them invaluable tools in the modern digital media landscape, solidifying their reputation among content creators and broadcasters alike.
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