ViewCast 450E, 240E manual Default Output Size

Page 71

Osprey 240e/450e User Guide

Default Output Size

Figure 60. Default Output Size

The standard DirectShow Pin Properties dialog allows you to select the height and width of captured video (Figure 60) from a drop-down list. The drop-down list has a particular range of choices that may or may not fit your needs. The drop-down list includes one default size that may or may not fit your needs. The drop-down list includes one default size that is provided by the capture driver. The Default size control allows you to set up what default size will be shown.

If you click Auto Size, your default video size is sized automatically to your crop settings. The three radio buttons, 1X, 1/2X, and 1/4X, determine whether the output size is scaled down from the crop size.

Example 1: If you are running standard 640 x 480 NTSC video, and you do not enable Enable Cropping, your crop size is 640 x 480. With Auto Size enabled, and 1X selected, your default size is 640 x 480; with 1/2X, 320 x 240; and with 1/4X, 160 x 120.

Example 2: If you have enabled cropping with size 320 x 240 (one quarter of the full video area), the

default Auto Sizes are as follows: 1X, 320 x 240; 1/2X, 160 x 120; 1/4X, 80 x 60.

If you leave Auto Size disabled, the default size radio buttons are disabled and the height and width edit boxes are enabled. You can set any default size with the following two restrictions:

Since the driver does not upscale video, the default size must be smaller than the crop size. For example, if the crop size is 320 x 240, you cannot set default output size 400 x 300.

Sizes are subject to the granularity requirements of the selected video format, as explained in the Granularity section above. For example, if your video format is I420 and you try to set a default width of 360, it gets adjusted down to 352 as soon as you click on another control.

Pin Properties dialog default entry does not appear in the default VFW/DirectShow mapper dialog. Thus, unless a VFW application, like Virtual Dub, specifically allows for custom resolutions, the VFW app is only able to select from the options the VFW/DirectShow mapper lists.

ViewCast

65

Image 71
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