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Osprey -240e/450e User Guide

1. Osprey 240e 450e User Guide Chapter 2 Osprey 450e A V Option Hardware Add on Device In addition to the standard components built into the Osprey 450e card you can purchase the Osprey 450e A V Option hardware add on device The A V Option exposes additional inputs for Component and S Video as well as balanced audio For example when you choose a Filter from standard Osprey 450e Device 1A the default option provides a single video capability Composite Osprey 450 Video Device 1A 1 Properties Video Input Video Present Without the A V hardware option the default input standard is limited to Composite With the optional add on you also have Composite 1 2 3 4 S Video and Component YRYBY See Figures 2 8 and 2 9 Tip Separate video abbreviated S Video and also known as Y C is an analog video signal that carries the video data as two separate signals They include luma brightness and chroma color Osprey 450 Video Device 14 1 Properties x i Logo Size and Crop Wideo Decoder RefSize Filters Video Present 525 Lines 60 Hz 11 Osprey 240e 450e User Guide Chapter 2 Input Format Group Analog Inputs Below the Video Standard drop down box you will see two check boxes for Input Format Figure 2 10 Input Format C B amp W composite camera JReverse field order DYCam analog transfer On the Osprey 240e 450e when an analog input components or S Video becomes the media source
2. Setup and control for audio are much simpler than for video The basic steps are covered in the following topics Selecting the Audio Source and Input Volume The audio source is set using the Osprey mixer driver interface Most applications including the Windows Media Encoder applications interface to the mixer driver directly and expose the look and feel specific to that application However the default Windows interface to the mixer driver can also be used There are two simple methods for getting to the mixer source and volume control dialog box 1 The easiest method for accessing this interface is to right click the speaker symbol on your taskbar typically on the bottom right hand side of your screen Then select the Open Volume Controls option There is a checkbox in Control Panel gt Sounds and Audio Devices to make this icon appear 2 If you do not see the speaker symbol click the Start button on the Start Menu select Start gt All Programs gt Accessories gt Entertainment gt Volume Control Either of these two methods brings up the audio mixer interface for the audio playback device as shown below Open olume Control Adjust Audio Properties Properties Mixer device Adjust volume for Recording Control Recording Options Help Recording Unbalanced XLA Balanced LA AES EBU SDI DY 1394 Balance Balance Balance Balance Balance Balance Show the following volume controls p
3. discussions These terms require technical experience with Microsoft s DirectX 9 Software Developer s Kit References on tabs in the Osprey Driver relates to terms used by Microsoft s streaming video software application They exist for users with a high degree of technical expertise You can simply ignore them and use the property tabs as discussed in this manual Osprey 240e 450e User Guide Chapter 2 Section The Input Tab The source of data an Osprey 240e 450e will stream to the Internet can come from a number of devices such as DVD players digital cameras Camcorders and so forth The Video Input section of the tab allows you to select the Video input type coming from your source video The Video Standard allows you to select the standard different countries or geographical areas use See Figure 2 7 The North American standard is NTSC The Japanese standard is NTSC Japan The five PAL standards B D G H and I are very similar and are treated the same way by the Osprey driver The driver also supports SECAM video Osprey 450 Video Device 1D Properties Video Present 525 Lines f 60 Hz Input Format B amp W composite camera Reverse field order D Cam analog transfer The controls on the Input tab of the driver properties card have a global effect on the Osprey capture card on which they reside If you have multiple Osprey cards and you want to make global changes you have to do that on each card 10
4. Many applications including Windows Media Encoder display the illustrated property dialog for setting audio source and volume level This is a general purpose DirectShow property page that our driver has to support but which is not quite intuitive in its operation 4 Osprey 240 Audio Device 1 Input Mono Source Mode Output Volume Unbalanced Use Left Channel as 1 Preamp L gt OdB Analog Software Prescale Boost 12d8 30dB 54dB 30d6 114dB 30 0 30 0 dB 0 dB 0 d cine Volume Do Mute Preferred Audio Sample Rate This control adjusts the volume on the CO Any Supported Rate m aae To select the audio source using this dialog select the desired input in the Pin Line selection box then check Enable This will also deselect whichever input had been previously selected The confusing part comes up when you select any input other than the first on the list which happens to be Unbalanced Let s say you select XLR Balanced When you close and reopen the dialog it will show Unbalanced in the selection box It will look like the selection has been lost but then you will notice that the Enable box is not checked If you again select XLR Balanced the Enable box will automatically show up as checked This property page makes more sense 1f you understand that it is designed to allow mixing of audio inputs for devices that support that Osprey audio capture filters do not su
5. The Preview button works analogously 36 Osprey 240e 450e User Guide Chapter 2 Render NTSC Closed Captions on Video Render NTSC Closed Captions On Video O Text 1 O Text 2 O Text 3 O Text 4 The 4 2 driver can internally render closed captions on video when NTSC video is selected on the input Refer to Figure 2 36 There is a control to select which channel to render although CC 1 is the only channel that is commonly used Note that this control only affects rendering on video performed internally by the driver The AVStream 4 2 driver has two additional ways of delivering captions First it exposes a DirectShow standard CC pin This pin can be used directly by applications such as Windows Media Encoder s scripting facility Second the driver has a proprietary Closed Caption API for use by C developers It delivers raw captioning data from any CC or Text channel It also delivers line interpreted data from these channels suitable for a scripting display or for capture to an ASCH file Is also delivers XDS Vchip and other ancillary data in raw form The control group Render Logical White As maps white captions to a color other than white This is a proprietary extension to the Closed Captioning standard When logical white is mapped to for example red the CC standard captioning red also works however it is not possible to distinguish logical white red captions from standard colored
6. per frame and a display rate of 59 94 fields per second or 29 97 interlaced frames per second Although capture to PC applications normally use only 480 video lines the full NTSC frame actually contains 485 video lines and the AVStream driver provides a control to capture all 485 lines The control is located on the RefSize property tab Full sized PAL and SECAM have 623 lines total 576 lines visible per frame and a display rate of 50 fields per second or 25 interlaced frames per second The standard frame sizes are different for NTSC and PAL For example the half frame size in pixels is 360x240 for NTSC and 360x288 for PAL The driver automatically adjusts the reference size and default size for the video standard you are using Color Formats The Color Format is the arrangement of data bits representing the colors of each pixel For example in the RGB555 format each pixel of data is stored as 5 bits of red 5 bits of green and 5 bits of blue color information Video delivered by the Osprey board to the system is in uncompressed format It is possible to compress the video at a subsequent stage of processing However this dialog field refers specifically to the uncompressed raw video that the board delivers to the system The Osprey AVStream driver supports the following capture pin formats 56 Osprey 240e 450e User Guide Chapter 3 YUY2 and UYVY Each pixel is represented with a total of 2 bytes 16 bits of data The d
7. red captions Since standard colored captions are so little used this characteristic has little practical effect Render Logical White As LS oo0o000000 37 Osprey 240e 450e User Guide Chapter 2 CC Pin CC Pin Field 1 O Field 2 This group controls whether the closed caption character pairs emitted by the DirectShow CC pin are from field 1 or field 2 of the video The DirectShow specification is that CC on a CC pin is always from field 1 however this extension allows application developers to access field 2 data such as XDS data including vchip via a DShow standard pin 38 Osprey 240e 450e User Guide Section VIII The Logo Tab Osprey 450 Video Device 1A 1 Properties Input VideoProcAmp Video Decoder Device Captions Logo Pin Select O Capture O Preview Both File and Color Position and Size Enable Logo Browse for File Chapter 2 RefSize Filters Size and Crop 2 Enable Key Color Weighting DkGrey o Red OMagenta o Green O Cyan o Blue O Grey 5 Other o Tolerance The logo property superimposes a graphic over captured video using the logo property controls We ve depicted this property tab in Figure 2 39 Logos have the following characteristics Any RGB 24 bitmap in bmp file format can be used A selectable key color can be specified all parts of the logo graphic with that color are not drawn on the video A transparency contro
8. 1394 In Some Data Points The following measurements are CPU percent on two machines a fairly old P4 and a dual Opteron 244 The video size is 640x480 The screen depth is 32 bits The following abbreviations are used YUY2 the Osprey driver s preview pin in YUY2 format RGB15 the Osprey driver s preview pin in RGB 15 format 54 Osprey 240e 450e User Guide Chapter 3 RGB32 the Osprey driver s preview pin in RGB32 format VR old Video Renderer VMR7 Video Mixing Renderer 7 VMR9 Video Mixing Renderer 9 AVI AVI Decompressor OVL Overlay Mixer The PostProc results are shown in two modes with all post processing filters turned off and with the adaptive deinterlace filter turned on Generally these results show the following 1 The great desirability of newer machines for video processing This has to do with system architecture more than raw CPU speed 2 VMR7 is generally fastest If you don t need the driver s PostProcessing then Direct Mode with VMR7 is especially fast 3 Results for specific pathways can be inconsistent across different machines For example on the P4 YUV to VR is faster than RGB to VR on the Opteron RGB is faster In evaluating these benchmarks bear in mind that all of them involve video rendering to the screen Depending on the exact pathway video rendering can result in CPU utilization that is a lot higher than for other capture scenarios Specifically writes to d
9. 35 ao e A o O E E OO O PE E REP E O OS OO A E E AS 36 jii Chapter 4 Selecting the Audio Source and Input Volume The Audio Properties Page Audio Playback oooocccccccncccccnonooononocnnccnnnnnnnnnnnnnnos Audio Configuration ooocccccnnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnos Preferred Audio Sample Rate Mono SOUICS MOG Ea Audio ACV EL occsirorsr cnn renuntinnndeentnememundntersesonceeuntnandeertoesente Chapter 5 BE Na a Appendix A Appendix B Troubleshooting M ViewCast The Captions Tab ooooonnnnnnnnnnnnnncccnnnonnnononnnnnnnnnnnnnnnnnnos PIDO COL sa cesssscaumeammeaaciaaecunostaeannoaatsboassesusenvamsaameeontecenies CC Streaming Interface The Logo A eE oo i Logo Pin Select e EE oo i Logo File and Color oocccccccccccnononnccnncccnonannnnnnnccnnnos Enable Keycolor ooccccccccccccconooonononocnccnnnnnnnnnnnnos Weil DUNS acicate dates Logo Position and SIZE ooccccccccncccnnnnnnnnnnonnnnnnnnnnnnnnnnnnos DE CMON A The Size and Crop Tab ccccccccnnnnooooononcncncnnnnnnnnnnnnos SA enn E T Referenc A A Granularity and Alignment Enable Cropping ccccccccccccccccceeeessseseeeeeeceeeeeeeeeeeaaas The Recalc Button oooooooococconooooncnnncnnnnnnonononononononoss DETaUIESIZS rr Chapter 3 Overview of Filters Pins and Properties PostProcessing Mode cooooccccccccccncccnonnonnnnnnooonnnnnnnnnnnnnnnnos Preview Pin to Video Renderer Preview Pin to Overlay Mixer
10. Connector Audio Out to Breakout Cable PCI Express Bus Compliant Approximate card weight is 198 grams Osprey 450e Backplate Breakout Cable Analog Composite Connector Video Ports Appendix A Page A 2 Osprey 240e 450e User Guide Appendix B Appendix Troubleshooting Color Bars on Video Screen The Osprey 240e 450e AVSstream Driver has a built in Color Bar generator If color bars appear in your video preview window it is an indication that video is not present on the selected video input The color bar display can be adjusted or changed in the Device Properties tab including the text overlay on the screen Test Pattern 9 Black 75 color bars O Blue 100 color bars Text Show board ID info To solve this problem check the following Check that the camera VCR or other video source is powered and that its output is connected to the Osprey card s input Check that the correct video input is selected in the Control Dialog s Source page Scrambled Video Image You may have set the wrong video signal format for the signal input you are using For example you may have told the driver to look for NTSC M video but are using a PAL BDGHI video source Make sure you know what signal format your video source is generating Go into the Video Standard field of the Control Dialog s Source page and click the button for that signal format Poor Video Quality at Large Frame Sizes Lar
11. If your video format results in exact 2 1 or 4 1 vertical scaling for a particular pin then all the video will come from one field This will be the case for uncropped NTSC CIF 320x240 or QCIF 160x120 It may be the case for special cases of cropped video as well In the PostProcessing sequence as currently implemented the sharp motion adaptive deinterlacing algorithm has no effect on single field streams since it alters only the field that these streams do not use The smooth algorithm operates on both fields and may have a detectable blurring effect on areas of motion Sharp and smooth are set in the Adjusts subdialog Inverse telecine if enabled does not affect the individual fields for a one field pin however if the pin s frame rate is 24 the driver will detect and remove the frames that are repeats If you are streaming multiple pins and the exact single field special scaling case holds true for one pin but not another different processing will be applied to the two pins When Auto mode is selected some kinds of content will 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 will drop back to the Motion Adaptive algorithm as soon a
12. Osprey 240e 450e Video Capture Card oooooooononnnncnnonnnonononnnonononononnnnnnnnnnnnnnnnnnnonnnanos l System REGU THETIC ALS rios l Minimum System Requirements ooooooooooooncccnnnnnnnnnnnnnonononnnnnnnnnnnnnnnnnnnnnnnn non nn nn nn SAE Saa EEA ER ri EE Eiti 1 Tis PaO SEPSA E l Installing the Osprey AVStream Driver ooocccnccnncccccnnnonononnonnnnnnnnnnonononnonononnnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnennns l Custom Installing the AVStream Software occcccccccccccncnononnonnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnnnnnnnnnnnss l Multiple Board Types and Adding or Moving Boards cccccccccccccsssssesseseeeeeecceeeeeeeeeeaaaaaesesseeeeeeeeeeeeeeeaaaas 2 TATTER E E A o A 4 Setting the AVStream Driver Properties for Osprey 240e 450e oocccccccccnnooooooooooconcnnnnnnnnonnnonononnnnnanannncnnnnnnnnnnnos 4 aE eA r A i iii ta 4 OspreyConfig s Initial Processing SeqUente ri a STan 5 Understanding Osprey s Device Properties WiNdOW ooooooccnooooooooooocnononononnnnnnonnnnnnnnnnnnnnon nn non non non nn nn non nnnonnnnnos 6 Devices and Global Controls ai io 9 A e o e O 10 This apal Tauste 10 Osprey 450e A V Option Hardware Add on Device ccccocococconooonnnnnnnnnnnnnnnnnonononnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnanananannnss 11 Input Format Group Analog Inputs oooccccnccnncccncnnnnnnnnonnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnos 12 o e E E P 6 OE dua dhacaetooteretueduer
13. The driver updates the controls on the logo tab immediately without waiting for you to click Apply You will see that Apply enabled only right after you select a different pin spec As soon as you make any change to any logo control Apply becomes disabled and stays that way until you change to another pin spec e If you set up a logo with video set to one size then resize the video the logo is not scaled correspondingly This may not be desirable since you may want the logo to expand to the same scale as the video window Click the 1X Scale button to restore the logo to its unscaled size or import a logo prescaled to the new desired size to ensure the best image quality 43 Osprey 240e 450e User Guide Section IX The Size and Crop Tab Chapter 2 This tab has two functions It sets the default output size whether or not cropping is enabled It enables and disables cropping and sets the cropping rectangle You can see the various functions in Figure 2 47 Osprey 240 Video Device 1 Properties RefSize Filters Device Captions Size and Crop Pin Select O Capture O Preview Both Width Height Reference Size see RefSize tab Granularity Capture Preview w Jo 0 E Enable Cropping Top width Height O a es Bottom Ls Default Output Size auto sie 1x Orjex Oix Ape Hep The default output size is the video size that appears in the DirectShow pin properties dialog as the default
14. as opposed to news style with an extra blank line between each pop on For more detailed information on the US Closed Captioning standard refer either to the standards document CEA 608 or The Closed Captioning Handbook by Gary D Robson Elsevier Focal Press 2004 Compared to the standards document the book is more accessible cheaper and contains all the required technical information if you are willing to read between the lines a bit to get it CropApp CropApp allows you to set up crops visually and interactively Its functionality is similar to the driver s Size and Crop property page but it has the added dimension of graphical placement of the cropping rectangle on live video It has about the same functionality as SwiftCap s crop setup dialog The functions of the controls on the left hand side of the video are as follows If multiple Osprey devices are in the system you can select the device of interest from the dropdown list at the top of the control groups Click Device Properties to access controls that are not explicitly addressed by CropApp All operations affect both the Capture and Preview pin on the device The driver s Size and Crop property page is capable of setting the Capture and Preview pins differently If SimulStream is enabled CropApp is hardwired to set up pin pair 0 only to set up other pins you will have to go to the driver s Size and Crop property page The Reference Image group shows th
15. choice It is a pathway for setting a custom or nonstandard video size in applications that do not have a custom video sizing controls built into them Cropping means removal of unwanted video around the edges of the incoming image For example if the incoming video is letterboxed with an aspect ratio wider than 4 3 you can crop away the black slivers at the top and bottom of the image and capture just the active portion Changes made on this page apply to all video preview and capture pins on the currently selected device 44 Pin Select Reference Size Granularity Enable Cropping Default Size Osprey 240e 450e User Guide Chapter 2 Pin Select When the Both radio button 1s selected changes you make to the crop setup apply to both the capture and preview pins This is the default setting and is what most users will want If you like however you can have different setups for the two pins For example you could enable cropping on the capture pin but not on the preview pin When you select the Capture radio button the current crop settings for the capture pin are loaded and changes you make apply only to the capture pin not to the preview pin The Preview button works analogously Reference Size The reference size information is always read only on this dialog tab It is determined by settings made on other tabs specifically the Input tab where a 525 line or 625 line standard is selected and th
16. device Select the checkbox on the filter tab to enable SimulStream in the evaluation mode and specify how many filters you plan to expose All the functions of SimulStream work in the evaluation mode When SimulStream is installed the controls in this group affect the fully licensed SimulStream mode as opposed to the free evaluation mode See Figure 2 23 For the Osprey 240e and Osprey 450e you must purchase a pre enabled card You can purchase cards at http store viewcast com When SimulStream is not installed it is in evaluation mode Evaluation mode works the same as full SimulStream except that an evaluation logo 1s displayed on the video If you have set up a custom logo the evaluation logo preempts it as long as evaluation mode is turned on Osprey 450 Video Device 14 2 Properties Device Captions Logo Size and Crop Video Proc Amp Video Decoder RefSize Filters SimulStream SimulStream is enabled for this device 24 Osprey 240e 450e User Guide Chapter 2 Enabled Checkbox The checkbox at the top of the group turns on SimulStream for the currently selected device If you have SimulStream license this checkbox controls SimulStream If you have a SimulStream license installed but have not turned on SimulStream the text line at the top of the control group will say that SimulStream 1s installed If you do have SimulStream turned on the text will say that SimulStream is enabled Show N filt
17. sized to your crop settings The three radio buttons 1X Crop 1 2X Crop and 1 4X Crop determine whether the output size is scaled down from the crop SIZE Example 1 If you are running standard 640x480 NTSC video and the Enable Cropping checkbox is not checked your crop size 1s 640x480 With Auto Size checked and the 1X Crop radio button selected your default size will be 640x480 with 1 2X Crop 320x240 and with 1 4X Crop 160x120 Example 2 If you have enabled cropping with size 320x240 one quarter of the full video area the default Auto Sizes are as follows 1X 320x240 1 2X 160x120 1 4X 80x60 If you leave Auto Size unchecked 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 L 48 Since the driver does not upscale video the default size must be smaller than the crop size For example 1f the crop size is 320x240 you cannot set default size 400x300 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 1420 and you try to set a default width of 360 it will get adjusted down to 332 as soon as you click on another control Osprey 240e 450e User Guide Chapter 2 Pin Properties dialog default entry does not appear in the default VFW DirectShow mapper dialog Thus unless a VFW application like Virtual Dub
18. specifically allows for custom resolutions the VFW app will only be able to select from the options the VFW DirectShow mapper lists 49 Osprey 240e 450e User Guide Chapter 3 CHAPTER 3 AVStream Driver Reference Information Overview of Filters Pins and Properties DirectShow technology uses terms with specific meanings For example filter pin driver and device appear frequently when discussing DirectShow media standards The Figure 3 1 depicts the relationship of DirectShow terms as they apply to Osprey hardware and drivers SimulStrm Video t Filter 1B z SimulStrm Video Audio Video Filter 2 Filter 2 Filter 2 e Filteria EL Erp kJ Ll Video Audio Device 2 Device 2 Figure 3 1 At the bottom this diagram are one or more physical Osprey hardware devices All Osprey devices of a given type such as Osprey 230 or Osprey 560 are controlled by a single Osprey binary the Osprey AVStream Driver For each physical device the AVStream Driver creates one logical Video Device and one logical Audio Device On top of each Osprey logical Video Device one or more Video Filters is created If the SimulStream option 1s not installed there is a single Video Filter for each Video Device If SimulStream is installed there can be multiple Video Filters for each Video Device The distinction between Device and Filter is important mainly to SimulStream users For non SimulStream users Device and Filter effectiv
19. to Video Renderer Preview Pin to VMR7 ocoocccnnccnnccnnoconoconincnnoconaronancnnns Preview Pin to VMR 9 o oocccncccnnccnnoconoconuncnnoconaronancnnns Some Data Points coooccncccnnccnnccnnoroniccnnncnnoronaronuncnnarons YUV Format Details ooccnoccnnccnnncnniccnnocnnoronironaninnn Captioning via CC or VBI Pins Direct CC Rendering on Video Osprey Hardware Specifications Color Bars on Video Screen User Guide Table of Contents gt AN ViewCast Osprey 240e 450e User Guide Chapter 1 CHAPTER 1 Getting Started with Your Osprey 240e 450e Video Capture Card System Requirements Please note that the following system requirements relate to your Osprey Capture card only The video capture or encoding applications you use will likely require a much more powerful system than that which is listed below Please consult your software documentation for applicable system requirements Minimum System Requirements Direct Mode 600 MHz Intel Pentium 3 processor or equivalent PostProcessing Mode and SimulStream 2 GHz Intel Pentium 4 processor or equivalent 3 GHz recommended Microsoft Windows XP Professional or Home Edition Windows Server 2003 Up to 7 5 MB of available hard disk space 256 MB of RAM 512 MB recommended One available PCI Express slot Installation Steps In all cases use the setup exe program on the product CD or in the web package if you downloaded it The setup program aut
20. to be 32 kHz 44 1 kHz or 48 kHz If Any Supported Rate is selected all three rates 32 44 1 and 48 kHz are available for selection by the Microsoft kmixer driver Kmixer however does not necessarily select the optimum hardware rate for a given software rate It may specify a 44 1 kHz hardware rate when a supplying 16 kHz software rate to the application for example In this case it would be better to set the Preferred Audio Sample Rate 32 kHz so that downsampling is exactly 2 1 Mono Source Mode If set to Use Left Channel then left channel audio data is copied to the right channel If set to Use Right Channel then right channel audio data is copied to the left channel If set to Average Left and Right no copying is done The Microsoft kmixer component always averages both channels when converting to mono If a signal is present on say the left channel only the Average mode will average the left channel with the silent right channel effectively halving the signal amplitude Setting this control to Left will result in only left channel data in the mono capture with no amplitude drop Audio Level This control sets the hardware Input Reference level and software based Boost factor The settings are separate for each input of each device and are applied to whichever input is selected in the current application or in the system mixer The settings displayed do NOT automatically update when you change inputs in the application or m
21. user by the FCC to operate the device Note to CATV Installer This reminder is provided to call to the CATV installer s attention Section 820 40 of the NEC which provides guidelines for proper grounding and in particular specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as practical PRODUCT DISPOSAL INFORMATION a Dispose of this product in accordance with local and national disposal regulations if any including those ES governing the recovery and recycling of waste electrical and electronic equipment WEEE RoHS Compliant ViewCast Corporation is committed to compliance with the European directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Directive 2002 95 EC the RoHS directive ROHS COMPLIANT For current RoHS statement see www viewcast com Osprey and SimulStream are registered trademarks of ViewCast Corporation Microsoft Windows XP NetMeeting NetShow and Video for Windows are trademarks or registered trademarks of Microsoft Corporation Any other product names trademarks trade names service marks or service names owned or registered by any other company and mentioned herein are the property of their respective companies gt l Ww User Guide ViewCast Table of Contents TABLE OF CONTENTS Bi IO T Rene SO e O E O 8 o ae eter ere er I Getting Started with Your
22. y y p y y Y y Y Recording Control Volume Volume Volume Volume Volume Volume Unbalanced XLA Balanced XLA AES EBU SDI C SDI 3 4 DY 1394 LJ Ll LJ LJ C Mute all Select Select Select Select Osprey 300 Audio Device 1 To get to the Osprey audio capture recording device select Properties under Recording Control s Options menu This pops up the Properties dialog Click on the Mixer device list at the top to see the list of audio input and output devices including one or more Osprey cards When you have chosen the device click OK and you will be returned to the Recording Control display The Osprey device is not a mixer in that it does not allow for mixing the various audio sources Therefore when one audio input 1s selected any other input previously selected becomes unselected The Select checkbox at the bottom of each source sets which source 1s actually being used 62 Osprey 240e 450e User Guide Chapter 4 Osprey cards have hardware gain control To control hardware gain use the volume slider in the mixer applet The unity gain setting is when the volume slider is all the way up in default driver settings The quick access volume control left click on the speaker symbol on the task bar controls recording volume and playback volume To change record levels go to Options then Properties and select Recording The Audio Properties Page
23. 1B Osprey 450 Device 1C l Osprey 450 Device 1D Show Properties for Selected Filter Place OspreyConfig icon in the Control Help Panel I Place OspreyConfig icon in the Taskbar Chapter 2 When you choose DevicelA and Video Filter Fig 2 3 the Show Properties for Selected Filter becomes active See Fig 2 4 Osprey 450 Device 1C Show Properties for Selected Filter B l Understanding Osprey s Device Properties Window Osprey s device properties window allows you to view and change the default settings of the 4 2 driver If you familiarize yourself with the video card s properties you can learn to make changes to get the optimum performance from your card and change settings in real time Osprey 240e 450e User Guide Chapter 2 Device properties are visible through tabs to select different controls People who have used our video capture cards will find that the 4 2 driver includes changes from previous versions The tabs have changed They now take advantage of the 4 2 driver s advances and added functionality Figure 2 5 provides a visual image of the Property Page a user will see as it appears using our Osprey Config utility Let s look at the tabs of device s property card Figure 2 5 helps in gaining a grasp of the features and settings of the Osprey 240e and Osprey 450e series Osprey 240 Video Device 1 Properties Video Present 525 Lines 60 Hz Input Format C Baw comp
24. 40e 450e User Guide Chapter 5 We are finding that the default 1420 codec will not render many output sizes so when 1420 granularity is selected CropApp will observe the 1420 granularity rule but render the video as YUY2 Since you may see this problem in other applications CropApp puts up a reminder message when it encounters this situation If you exit CropApp with the crop Enabled that is the center checkbox checked the crop parameters will be set in the driver for any other application to use If you exit CropApp with the crop disabled the crop parameters will be set for other applications to use but cropping will not be enabled until 1t 1s turned on as a separate step CropApp requires that the filter OverlayRect ax be present on the system The driver setup program installs this filter LogoApp LogoApp allows you to interactively position and resize a logo on live video The functionality 1s similar to that of the driver s Logo property page but you can place and size the logo by dragging its center sides or corners directly on live video The control bar across the top allows you to Enable Disable logo display and select the 24 bit BMP logo file You can size and place the logo graphically on the video or you can directly edit the top left height width boxes Use the Size 1X button to snap the logo to its original size The Colors button brings up a dialog to enable color keying select the key color and set the transparenc
25. 7 that will be viewed via a computer monitor This setting results in a square aspect ratio sampling of the source video This results in a source image of 640x480 for 525 line standards and 768x576 for 625 line standards Use the CCIR 601 setting for 4 3 video that will be viewed on a dedicated video monitor This setting results in a CCIR 601 aspect ratio sampling of the source video It results in a video input horizontal size of 720 pixels for both 525 line and 625 line standards This sizing is standard for dedicated monitors but results in video that appears horizontally stretched 525 line or squeezed 625 line on a computer monitor It is more efficient to set the horizontal mode to match the size of the output For example if your target video size is 640x480 using Square Pixel sizing in PostProcessing Mode will avoid an unnecessary software scaling step in the driver On some systems for reasons external to this driver 640x480 video will render on screen a lot faster than 720x480 video that is the speed difference will be a lot more than the 9 8 ratio of numbers of pixels Select 16 9 Wide for 1 85 1 anamorphic video such as DVD content and PAL widescreen content The output video size will be 852x480 for 525 line standards and 1024x576 for 625 line standards In order to actually see output of this size you have to also select this size in your application The Use WideScreen Signal WSS control enables automatic sidebar
26. Device 1A properties Osprey 450 Video Device 1A Properties Brightness Contrast Ii Hue y Saturation Sharpness Gamma White Balance EEES Backlight Comp ColorEnable TETT Ew The Video Proc Amp uses slider controls to adjust brightness contrast hue saturation sharpness and gamma If you re using the preview or capture mode in real time then you can see your adjustments as you make them with the Video Proc Amp controls Figure 2 14 gives you a close up view of the controls you can use Table 2 2 explains the functions of each control 14 Osprey 240e 450e User Guide Chapter 2 Brightness and Contrast Saturation 15 Brightness 00 J Contrast Hue Saturation Sharpness Gamma TEET These are terms for what one would call a contrast ratio It s a measure of a display system defined as the ratio of the brightest color white to that of the darkest color black that the system is capable of producing A high contrast ratio is a desired aspect of any display but with the various methods of measurement for a system or its part different measured values can sometimes produce similar results The control exists in the event you need to change the ratio of an incoming signal Hue adjustment only functions for NTSC video In color theory saturation or purity refers to the intensity of a specific hue A highly saturated hue has a vivid intense co
27. It you select Other for a custom color the three edit boxes Red Green Blue are activated and you can enter any color value into these boxes Keycolors to identify transparent portions of logos can be exact or inexact The Tolerance control Figure 2 43 determines this If Tolerance is 0 then all keycolors have to exactly match the Red Green Blue values shown in the key color control group If Tolerance is nonzero then the Red Green Blue values can deviate from the keycolor by the tolerance value and still be treated as being equal to the keycolor For example 1f Tolerance is set to 5 and the keycolor is set to grey 192 192 192 then pixels in the bitmap with value 187 187 187 will also be transparent UN Tolerance Weighting The degree of transparency of the logo is variable through 101 steps If the setting is 100 the logo will be opaque If the setting is O the logo will be completely transparent If you have set a keycolor the weighting or transparency value is applied only to pixels that do not match the keycolor and hence are always completely transparent You can set the weighting either with the slider or by editing the number in the edit box Figure 2 44 4 Osprey 240e 450e User Guide Chapter 2 Weighting Note that the SimulStream Eval logo is a special case it is restricted to the range 50 to 100 so that it cannot be made completely transparent Logo Position and Size The Logo P
28. Off Perform no deinterlacing of any kind Deinterlace settings are applied and stored per device and are applied to all filters and pins associated with a device Background telecine and inverse telecine Telecine video is NTSC video that was originally created on film at 24 frames per second In the telecine conversion process certain fields are repeated in a regular recurring sequence If a telecined sequence is viewed directly on a progressive screen interlacing artifacts will be visible The process called Inverse Telecine is the reverse of Telecine it drops the redundant fields and reassembles the video in a 24 fps progressive format Interlacing artifacts are 100 removed If the video is viewed at 24 fps you will see the exact timing and sequencing that was on the original film If the video is viewed at 30 fps every 5th frame will be repeated however there will be no deinterlacing artifacts Telecine and inverse telecine only apply to NTSC video They are not used for PAL and SECAM video The Auto and Inverse Telecine buttons will be disabled when PAL or SECAM is selected as the video standard 28 Osprey 240e 450e User Guide Chapter 2 Background motion adaptive deinterlace Motion adaptive deinterlace is an algorithm for deinterlacing pure video non telecine content It detects which portions of the image are still and which portions are in motion and applies different processing to each The Currently Usin
29. Ss ViewCast Osprey 240e 450e User Guide AVStream Driver Version 4 2 LLL EL 0 i MN User Guide ViewCast UL Statement FCC Notice Product Disposal Information Osprey 240e 450e User Guide AVStream Driver Version 4 2 ViewCast Corporation 3701 W Plano Parkway Suite 300 Plano TX 75075 7840 USA Revised 06 25 2008 O 2008 ViewCast Corporation No part of this specification may be reproduced transcribed transmitted or stored in a retrieval system in any part or by any means without the express written consent of ViewCast Corporation ViewCast Corporation reserves the right to change any products herein at any time and without notice ViewCast Corporation makes no representations or warranties regarding the content of this document and assumes no responsibility for any errors contained herein UL STATEMENT Underwriters Laboratories Inc has not tested the performance or reliability of the security or signaling aspects of this product UL has only tested for fire shock and casualty hazards as outlined in UL s Standard for Safety UL 60950 1 UL Certification does not cover the performance or reliability of the security or signaling aspects of this product UL MAKES NO REPRESENTATIONS WARRANTIES OR CERTIFICATIONS WHATSOEVER REGARDING THE PERFORMANCE OR RELIABILITY OF ANY SECURITY OR SIGNALING RELATED FUNCTIONS OF THIS PRODUCT To maintain UL compliance this product to be used only with UL Listed computers tha
30. accessible controls built into the driver that affect Closed Captioning 1 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 58 Osprey 240e 450e User Guide Chapter 3 2 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 3 On the Device gt 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 what an apparent problem in DirectShow if you attempt to capture a CC character pair stream to an AVI file with Normal timestamping the file will become extremely large and the capture will fail within a few seconds The AVI Compatible mode allows capture of CC to AVI Unfortunately the problems with timestamping mean that time synchronization between the video and CC streams depends on their physical interleaving in the file so that time synchronization will be poor If the AVI file is set up to be non interleaved synchronization is not very good If th
31. alling has not passed Windows Logo testing to verify its compatibility with Windows lt P Tell me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the software vendor for software that has passed Windows Logo testing STOP Installation 1 Click Continue Anyway as we have tested our cards in thousands of PCs 2 The Controller installing window displays and the text inside this window changes to Osprey Video Capture Device Installing Then the Digital Signature Not Found window appears on top of it 3 Click Continue Anyway The Completing the Found New Hardware window displays 4 Click Finish The Digital Signature Not Found window displays 5 This window displays once for each Osprey board you are installing The Systems Setting Change window displays 6 Click Finish and tell the system to restart now Figure 1 3 System Settings Change Windows has Finished installing new devices The software that supports your device requires that you restart your computer You must restart your Q computer before the new settings will take effect Do you want to restart your computer now Osprey 240e 450e User Guide Chapter 2 CHAPTER 2 Setting the AVStream Driver Properties for Osprey 240e 450e Using the Ospre
32. are other forms of copy protection and that they may have different effects on the picture Cannot Play Back Recorded Audio If you have a sound card installed you should be able to hear audio when you play back recorded audio Verify that the volume control for your playback device is not muted Verify that the selected playback device is your sound card Some Windows applications cannot use a recording device unless a playback device is also installed The Placeholder device cannot play back recorded audio You can use the same method to select playback device that you use when selecting the audio source Audio Recording Control Comes Up With Wrong Device and Wrong Inputs The cause of this problem may be that you currently have or have had previously a Video for Windows audio capture driver installed in the system The Osprey AVStream install process normally removes a previous Video for Windows driver but if you have multiple Osprey cards installed you do have the option of running the Video for Windows driver on some cards and the AVStream driver on others Unfortunately the Recording Control does not work smoothly in this situation The Video for Windows device will always try to act like it is the selected device even if itis not You have to manually enter Recording Control s Options gt Properties dialog to select your device If you no longer have need for the Video for Windows driver you can uninstall it using instructions obtainabl
33. ase will never shift Once it does shift the absolute phase of the Cine Phase display which of buttons 1 through 5 is green is not significant the only significant fact is that phase shifts are occurring When the sequence relocks all phase button are equally correct The Adjust Dialog Use the adjust dialog to adjust the parameters that control motion adaptive deinterlacing Figure 2 30 Note When the driver is using the Inverse Telecine algorithm either in Telecine mode or Auto mode the Adjust settings have no effect at all and Test Mode is inoperative 29 Osprey 240e 450e User Guide Chapter 2 Adaptive Deinterlace Motion Threshold A 5 Smooth Motion Restore Defaults O Sharp Motion C Test Mode In test mode bobbed or adaptively deinterlaced ideo displays as bright green Test mode shows visually which portions of the image are being adaptively deinterlaced to help you adjust the parameters Test mode always exits when you close the dialog Click Help for detailed information Motion Threshold The Motion Threshold slider and edit box adjust the threshold of difference from spatially and temporally related pixels that is judged to be motion If you enter Test Mode and move the slider to the right the number of pixels that are considered in motion will be greatly reduced As you move the slider to the left the number of motion pixels will greatly increase until nearly the entire screen is
34. ata is encoded as separate data for luminance intensity and chrominance color This mode is mainly used as an input to software compressors See YUV Format Details below YUV12 planar Also known as 1420 This is a complex format in which there are in the aggregate 12 bits of data per pixel Each pixel has 8 bits of luminance data Each group of 4 adjacent pixels arranged in a 2x2 square shares two bytes of chrominance data See YUV Format Details YVU9 planar Similar to YUV12 planar except that there are in the aggregate 9 bits of data per pixel and each byte pair of chrominance data is shared by 16 adjacent pixels arranged in a 4x4 square See YUV Format Details RGB32 Each pixel has four bytes 32 bits of data one each for red green and blue plus one byte that is unused The pixel has 256 shades of each of the three colors for a total of 16 7 million colors RGB24 Each pixel has three bytes 24 bits of data one each for red green and blue This is another true color mode with 16 7 million colors RGB555 Each pixel has two bytes 16 bits of data There are 5 bits each of red green and blue data the sixteenth bit is unused This is a high color mode also known as 5 5 5 RGB8 Greyscale The Osprey AVStream driver uses the RGB8 format for greyscale video RGB8 is a palletized format Each pixel is represented by one byte which indexes one of 256 colors in a color palette specified
35. by the driver The Osprey driver sets the color palette to greyscale entries and captures Y8 luminance only data YUV Format Details YUY2 UYVY YVU9Y and YUV12 are YUV formats In these formats each pixel is defined by an intensity or luminance component Y and two color or chrominance components U and V Since the human eye is less sensitive to color information than to intensity information many video formats save storage space by having one luminance byte per pixel while sharing the chrominance byte among two or more pixels YUV is also very similar to the color encoding used for analog color television broadcast signals YUY2 mode sometimes referred to as 4 2 2 packed mode consists of a single array of mixed Y U and V data Each pixel has one Y intensity byte Each pixel shares its U and V bytes with one of the pixels horizontally next to it YUY2 uses the same number of aggregate bytes per pixel as RGB15 which is two However YUY2 is more efficient than RGB15 because it stores relatively more of the intensity information to which that the human eye is most sensitive UYVY mode is very similar to YUY2 except that the bytes are swapped as follows YVU9 and YVU12 are planar modes the Y U and V components are in three separate arrays It is easiest to explain the format with an example Let s say you have a 320x240 YVU9 format The buffer has 320x240 bytes of Y data followed by 80x60 bytes of V data followed b
36. colors frame rates crops logos and captioning You can have multiple video capture streams in a single application or multiple applications with one or more capture streams They allow applications to enumerate and list DirectShow video capture and preview pins or streams each with different settings as named entries in their video device select list You can set up the driver to show to 10 filters per device Each filter has one preview pin and one capture pin Standard applications can access a particular filter without any custom programming specialized for Osprey devices Each filter has independent settings for cropping default output size logos and captions that can be stored between sessions Compared to the previous pin based method there are no requirements for a particular startup order in order to associate settings with instantiations 23 Osprey 240e 450e User Guide Chapter 2 ViewCast includes an evaluation version of SimulStream with the Osprey 240e and Osprey 450e cards however any logos or changes you attempt to make will not take effect until you purchase the SimulStream option You can see the caption SimulStream evaluation is installed in Figure 2 22 SimulStream SimulStream evaluation is installed s Multiple instances of one filter with same crop logo caption settings usually recommended Multiple filters with different crop logo caption settings advanced Show filters per
37. considered in motion The recommended default is 16 Sharp and Smooth Motion When the Sharp Motion radio button is selected detail in motion areas will be sharper but at the expense of somewhat jagged diagonal edges When the Smooth Motion radio button is selected there will be more loss of detail in motion areas but edges will be smoother Since the eye does not see detail clearly in areas of motion anyway whereas edge artifacts are always highly intrusive the Smooth algorithm should be preferred for most applications The Smooth algorithm uses a bit more CPU Both algorithms treat still areas areas that are not green in Test Mode the same way and there should be no loss of detail in still areas Test Mode When the Test Mode box is checked the motion adaptive algorithm enters a test mode that displays motion pixels as bright green dots The dots will mainly be along edges that are in motion but if the motion threshold is set too high there may also be a random distribution of green dots caused by pixel jitter and instability of the video signal The extensiveness of the green areas will vary according to the settings of the other adjust controls Test mode is always automatically exited when you exit the Adjust dialog 30 Osprey 240e 450e User Guide Chapter 2 In Test Mode with the Sharp algorithm green speckles will be on alternate lines only and with the Smooth algorithm they will be on all lines Notes L 31
38. d video up to the reference size Cropping rectangles are frame based rather than field based Thus if a crop rectangle is set up defining a 320x240 area then a capture of video sized at 320x240 will result in video being captured from two fields You may therefore see interlacing artifacts in the captured video unless a deinterlacing filter is applied This may be initially confusing since most users typically think of 320x240 video capture only coming from a single field and thus would not have interlaced artifacts However in this case the source video is only 320x240 in size 1 e the crop rectangle and thus any captured video that is greater than the field height within the crop rectangle equal to 1 2 cropped ROI height will result in a scaled capture of multiple fields Also the driver will use both fields whenever they are needed to interpolatively scale the output with best possible accuracy Default Size Default Output Size Y Auto Size 1x O 1 2x O 1 4x The standard DirectShow Properties dialog allows you to select the height and width of captured video from a dropdown list See Figure 2 50 The dropdown list has a particular range of choices that may or may not fit your needs The dropdown 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 check the Auto Size checkbox your default video size will be automatically
39. dded in the Vertical Blanking Intervals VBIs of some video content Timecodes mark each frame with an hour minute second framenumber marking that can be use for frame precise editing The illustration below shows a VITC timecode waveform Fe VbiGraph Field 1 2 Line 59 Osprey 240e 450e User Guide Chapter 3 ActiveMovie NE Pa Ons F242 The current Osprey VITC implementation is preliminary in nature The features and method of implementation are subject to change We invite comments on the timecode related capabilities that you need for your application Osprey s approach to VITC is to invisibly watermark the video bits of each outgoing video frame with its timestamp data The illustration shows a timecode extracted from a watermarked frame and rendered as text on the video Four elements are used to produce it The device extracts timecode data from the vertical blanking interval VBI waveform The driver watermarks timecode into the video preview or capture pin s output data A custom filter decodes the watermark from the video and renders it A GraphEdit graph combines the required filters The filtergraph is as follows The Osprey Timecode Filter resides in the module TCOverlay ax and is installed and registered as part of the standard driver installation The source code for this filter 1s included in the Osprey AVStream SDK The Osprey Timecode Filter also exposes to applica
40. de Device Information Device Info Osprey 450 Video Device 14 1 Device O Channel2 Filter 1 PCIBus 3 Slot O Device Type Code 50 Serial Number O 32 bit User Mode AVStream SYS Version 4 1 0 52 AVStream AX Version 4 1 0 52 SYS Interface Version 101 AX Interface Version 101 Driver Name OspNgBas sys OspNgCap sys Chapter 2 This button display useful information about the capture card and the driver including the DirectShow name of the device See Figure 2 33 34 Osprey 240e 450e User Guide Chapter 2 Extras Extras Figure 2 34 are features of the AVStream driver that are new not fully defined or subject to change Extras may also include workarounds to apparent DirectShow issues that are expected to be resolved fairly soon Timecode Video Marking Enable auto rield1 2J10 Line Search O Field 2 Closed Caption Timestamping Normal Default O AVI Compatible Extras should be expected to change more frequently than other aspects of the driver The current Extras are the following Timecode Video Marking Refer to the Vertical Interval Timecode of this guide Chapter 3 Page 60 for more information Closed Caption Timestamping This control is a workaround to what we currently believe to be a problem in DirectShow with capture of CC to AVI files If you attempt to capture a CC character pair stream along with a video stream to an AVI file with Normal timestamping the file will b
41. e Filters Device Captions Logo Size and Crop Test Pattern Black O 75 color bars O Blue 100 color bars Text Show board ID info Number of Capture Buffers Requested so Capture s Preview Diagnostic Logging Enable s Caution Enable Diagnostic Logging only under the direction of viewCast Technical Services Test Pattern Number of Capture Buffers Requested Diagnostic Logging Device Information Extras Test Pattern You can select one of four patterns when no video signal is present black blue 75 color bars and 100 color bars You can place a text line on the test pattern If the Text edit box is empty meaning NO spaces and no text characters then no text will exist Otherwise whatever you type here up to 32 characters will be displayed on the test pattern 32 Osprey 240e 450e User Guide Chapter 2 Number of Capture Buffers Requested The driver can tell DirectShow the minimum number of video capture buffers it needs to have allocated for proper operation Figure 2 32 The client application may ask for a different number of buffers in general DirectShow will honor the larger of the requests Number of Capture Buffers Requested Capture s Preview Buffers are used in a round robin style The driver fills a buffer the client then consumes the buffer and releases it when it is done The buffer then circulates back to the driver to b
42. e AVI file is set up to be interleaved synchronization is very 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 will not play back an AVI file with an embedded CC stream The following GraphEdit filtergraph will play 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 The driver has to be in PostProcessing Mode CC Streaming Interface The driver supports an Osprey custom property which provides the closed caption character stream for use by custom applications The Osprey filter named CCLinelInterp ax supplied with the driver package provides user mode support for this captioning mode The Osprey sample applet named CCChannels exe also supplied with the driver package demos a CC line interpreter and XDS vchip extraction and display Refer to the description of CCChannels exe in chapter 5 Refer to the documentation for the Osprey AVStream SDK version 4 2 for a description of this interface for developers Both the filter and the applet are provided in source code form in the SDK Vertical Interval Timecode VITC Vertical Interval Timecode VITC data is embe
43. e RefSize tab where Square Pixel or CCIR proportioning is selected The read only text box describes which of these options is currently governing the reference size The reference width and height represent the full uncropped size of the incoming video Your crop settings are interpreted relative to this reference size For example if you are capturing 525 line video with a reference size of 640x480 and your crop rectangle is O 0 640 480 then your video is effectively uncropped But if you are capturing 625 line video with a reference size of 768x576 the same 0 0 640 480 crop specification will truncate the right and bottom edges of the video Granularity and Alignment Osprey products impose restrictions on the possible width and or height of the video referred to as granularity restrictions For example the 420 capture format requires that the capture width be a multiple of 16 and the capture height be a multiple of 2 When video is cropped they also impose a requirement for alignment of the left side of the cropped video field The specific requirements for the 4 2 driver are changed from the 3 X X driver versions The granularities for all products in Post Processing Mode are as follows Granularity Alignment YUY2 UYUV 1420 YVU9 RGB555 RGB24 RGB32 none any P wo a Greyscale Trone any TS The Granularity controls show you set restrictions for the selected video format and as
44. e filled with video again If the client holds on to a large number of buffers at once there is the possibility that there will be no empty buffers available to the driver The result will be dropped frames The solution is to allocate a larger number of buffers Capture and encoding applications generally need a large number of buffers so that they can deeply pipeline the downstream processing without danger of buffer starvation at the driver If there is evidence of buffer starvation in the form of dropped frames you can try increasing the number of buffers allocated for the Capture pin Preview video that is directly rendered on the screen does not use deep pipelining and cannot benefit from it There has been some evidence that too many buffers for direct rendering can harm performance So 1 On the Capture pin you can increase the number of buffers from the default 50 for deeper pipelining and more resistance to dropped frames 2 On the Capture pin you can reduce the number of buffers to around 5 if the video is going to be used only for direct rendering Remember to put the number back to 50 or more for capture or encoding 5 may not be enough and may result in many dropped frames 3 On the Preview pin you can increase the number of buffers to 20 or more if you are using it for capture or encoding rather than direct rendering Diagnostic Logging For use by ViewCast Technical Support Only 33 Osprey 240e 450e User Gui
45. e from Osprey technical support If you are comfortable using RegEdit to edit your registry you can instead go to the following location HKEY LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion Drivers32 Appendix B Page B 2 40 03239 02 Rev B
46. e video height and width that are the reference size for cropping operations For example if the reference size is 720x480 and the cropping spec is 720x480 then the video is effectively uncropped This group also states the basis for this reference size that is whether the video standard is NTSC 720x480 or PAL SECAM 720x576 The Cropping Parameters group is where the current cropping parameters are shown When the Enable button is Off the entire video field is shown with the crop as an overlayed rectangle You can modify the crop in three ways 67 Osprey 240e 450e User Guide Chapter 5 By editing the X Y Width and Height boxes With the two sets of arrows adjacent to these boxes By dragging the center edges or corners of the crop rectangle on the video When the Enable button is On only the crop field is shown and the crop settings are not editable CropApp will not let you set crops that are smaller than a minimum width and or height The minimum size in the 4 2 driver is 48 wide by 36 high The Default Output Size group sets a default size that applications may choose Use the slider to set the approximate size you want and then if necessary use the lt and gt buttons to fine tune the setting The sizes available in CropApp will always retain a 1 1 height width proportion If you want to stretch the video to other proportions use the driver s Size and Crop property page or SwiftCap s crop dialog Not al
47. ecome extremely large and the capture will fail within a few seconds AVI Compatible mode allows capture of CC to AVI Unfortunately the problems with timestamping mean that time synchronization between the video and CC streams depends on their physical interleaving in the file so that time synchronization will be quite poor we do not have a workaround for this at this time 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 35 Osprey 240e 450e User Guide Chapter 2 Section VII The Captions Tab When the Both radio button is selected changes you make to the captioning setup apply to both the capture and preview pins This is the default setting See Figure 2 35 Osprey 450 Video Device 1D Properties Input Video Proc Amp Video Decoder RefSize Filters Device Captions Logo Size and Crop Pin Select O Capture Q Preview Both Render NTSC Closed Captions On Video EC Channel Render Logical White As CC Pin E Sg Orea 1 O Field 2 Pin Select If you like however you can have different setups for the two pins For example you could enable cropping on the capture pin but not on the preview pin When you select the Capture radio button the current captioning settings for the capture pin are loaded and changes you make apply only to the capture pin not to the preview pin
48. ect which of three video lines should be the top line of displayed or captured video Lines 21 and 284 are used for Closed Caption in films and broadcast video Lines 22 and 285 are sometimes used for ancillary data in broadcast video If these lines are used for data they will appear as moving bands or streaks across the top lines Therefore the most generally useful start lines are 23 286 For cameras and some packaged content however all video lines starting with 21 284 can be part of the displayed video 22 Osprey 240e 450e User Guide Chapter 2 Section V The Filters Tab Figure 2 21 demonstrates the filters tab which cover two independent technologies SimulStream and Deinterlacing Functionality for both technologies exists on the filter tab In this discussion we will examine each technology separately Osprey 240 Video Device 1 Properties Device Captions Logo Video Proc Amp Video Decoder RefSize Filters C SimulStream SimulStream evaluation is installed Multiple instances of one filter with same crop logo caption settings usually recommended Multiple filters with different crop logo caption settings advanced Show filters per device Deinterlace Currently Using Auto Dy Inverse Telecine Ee Inverse Telecine Motion Adaptive E gt Motion Adaptive E off SimulStream SimulStream provides technology so a single capture card can output the same video in different sizes
49. ed ancillary data On top of each Osprey logical Audio Device one Audio Filter is created with one or more pins capable of sourcing one or more audio streams There is not much practical distinction between an Audio Device and an Audio Filter in either the SimulStream or non SimulStream cases Both devices filters and pins may have associated Properties Properties are control parameters that can be read from or written to the component Some Property Pages are standard Windows DirectShow pages For example the Property Page for an individual pin is a standard DirectShow page The Video Proc Amp and Video Decoder Pages are also DirectShow standard The rest are proprietary to the Osprey driver As a user you interact with Property though visual Property Sheets Property Pages or Property Tabs that are part of a tabbed dialog As a programmer you can set properties directly from within the code of your application using either the standard DirectShow API or the custom Osprey extension API that is available from ViewCast Corp in an SDK Overview of PostProcessing Mode PostProcessing Mode The Osprey 240 450e 4 2 driver operates in Postprocessing Mode only PostProcessing Mode enables a number of filters transforms and renderers within the driver and supports the SimulStream option Deinterlace Gamma and Inverse Correction Telecine Scale and Logo Caption Color Crop Renderer y Renderer Conver
50. ely mean about the same thing For SimulStream users each SimulStream Filter acts as a virtual device that can be accessed by name and can deliver a separate video stream with 1ts own independent control settings When SimulStream is enabled some functions and capabilities are device level and others are filter level Examples of device level functions are input select and the controls for brightness contrast hue saturation and sharpness These are closely tied to the underlying hardware of the device which inherently allows only one input to be selected at a time and one set of hardware control settings to be applied Examples of filter level functions are crop logo and caption settings which can be different for each video filter and in fact for each pin of each filter Some other capabilities such as deinterlace and software gamma correction could logically be either device level or filter level but are treated as device level for practical reasons 50 Osprey 240e 450e User Guide Chapter 3 Each Video Filter has one Capture Pin and one Preview Pin A pin is the source or destination of a video or audio stream A video capture pin is a general purpose pin used for capture to a file an encoder an on screen renderer or any other destination A video preview pin is mainly intended for on screen rendering Each Osprey Video Filter also has a Closed Caption pin and a Vertical Blanking Interval VBI pin for capture of specializ
51. eo Renderer 23 Video 1394 In Video Renderer is the oldest and simplest DirectShow renderer It does not use DirectDraw in the rendering process which makes it substantially slower than VMR7 described below It is the default rendering pathway that will be chosen when an application says Render without specifying a preferred pathway For this reason many applications deliver unnecessarily slow rendering performance Video Renderer works best when your output format is RGB rather then YUV with the RGB format matched to your screen depth On most modern systems that means RGB32 is the preferred format If a YUV format is used an extra filter AVI Decompressor will be inserted into the graph to convert the YUV to RGB The driver can do this conversion faster internally Preview Pin to Overlay Mixer to Video Renderer j Input Output VMR InputO aad Osprey Timecode Filter Video Rende Compared to a direct connection of Preview Pin to Video Renderer the combination of Overlay Mixer plus Video Renderer provides performance that is different It is hard to be more specific than that without reference to specific machines refer to the data tables below 0 Video Composite In 4 Vidas SVidao hn 0 Video Decoder Out A Osprey 300 Crossbar 1 2 Video SerialLigntal In 13 Yideo 1394 In This is the only pathway that renders closed captioning correctly when a DShow CC or VBI pin is used rather t
52. ers per device Multiple Filters with different crop logo caption settings advanced Show filters per device You can set up the driver to expose 1 to 10 filters per device Figure 2 24 If for example 4 filters per device are chosen the device list will show four entries for the current device For Device 1A they are designated as 1A 1 1A 2 1A 3 and 1A 4 When you apply this change a message box comes up asking you to restart the system it is important that you do so The number of filters you have requested will not display or work correctly until the system is restarted Note while it is possible to expose and enumerate up to 10 filters per device the practical number of filters depends on your hardware When video is being directly rendered to the screen the video format and type of renderer used can make a major difference in system performance and in the number of streams that are possible If multiple capture devices are in the system the number of filters is the total across all the devices in addition some types of processing such as deinterlacing and gamma correction that are performed once per device may in this case occur multiple times So in summary a high end multicore or multiprocessor system can support 5 6 or more concurrent filters on one device if the processing per filter is light but only 2 or 3 if the processing load inside or outside of the driver is particular heavy Allow multip
53. es This feature requires OKB on your hard drive InstallShield This window will allow you to choose individual components you may want to install You can also change the location where components will install Installing Your Osprey Video Capture Card Multiple Board Types and Adding or Moving Boards This manual covers one class of Osprey devices that include two PCI Express cards class 6 0240 0450 and related non DSP PCI Express products Both cards use the same driver If you add a card from a different class then you will need to install the driver for that card When you add or move boards after the AVStream 4 2 driver is already installed there are two possibilities A You add a board of a different class from what is already in the machine For example there is already an Osprey 240e in the machine with the current driver installed and you want to add an Osprey 530 For this case you have to obtain and install the driver install package for the new board Osprey 240e 450e User Guide Chapter 1 B You move a board from one slot to another or if you add another board of the same type For example you might have an Osprey 240e in the machine and want to add another Osprey 240e In this case the following sequence will begin The New Hardware Wizard runs and displays the Found New Hardware window followed by the Digital Signature Not Found window See Figure 1 2 Software Installation A The software you are inst
54. ey 240e 450e User Guide Chapter 2 OspreyConfig s Initial Processing Sequence Now we re back to the Osprey Config utility After clicking on the Osprey Config icon you will initially see the first screen of the application showing what cards and devices you or someone installed on your computer Figure 2 2 depicts the initial screen B OspreyConfig 3 lx 2 Osprey Devices 5 Osprey 240 Device 1 E Osprey 450 Device 14 5 Osprey 450 Device 1B i Osprey 450 Device 1C 5 Osprey 450 Device 1D Show Properties for Selected Filter Place OspreyConfig icon o gt in the Control Panel Help _ Place OspreyConfig icon in the Taskbar In Figure 2 2 you can see that the computer in use has two cards and five devices The Osprey 240e and the Osprey 450e Both cards can take a single input and stream its content differently for example you can use several bit rates sizes and formats By clicking the icon on the left side of the device you wish to configure you can change the properties of that device Figure 2 3 shows the user interface that appears when you select a filter We expanded the Osprey 450e Device 1A and selected Video Filter We ll continue with this device unless we indicate otherwise Osprey 240e 450e User Guide MM OspreyConfig Command About E Osprey Devices l Osprey 240 Device 1 Audio Filter ideo Filter Osprey 450 Device 14 Audio Filter Video Filter E Osprey 450 Device
55. frames are to be rendered with VMR7 at the same time only one can be YUY 2 other s will be RGB with a conversion filter inserted into the graph if necessary We do not provide an RGB24 option on the preview pin for use with 24 bit screens because on at least some display adapters the rendering of RGB24 to VMR7 is incorrect Note that VMR7 cannot be used when closed captions are to be rendered from the driver s DShow standard CC or VBI pin use the Overlay Mixer to Video Renderer pathway instead If the driver s internal rendering is used the VMR7 will work and is recommended Preview Pin to VMR9 2 0 Video Composite In 0 Video Decoder Out 300 Crossbar 1 1 Video Svideo In 1 VMR InputO a VMR Input1 Y Video Mixing Renderer 9 2 MR Inputz 2 VMR Input3 Video Mixing Renderer 9 is the newest video rendering method and the one on which Microsoft supposedly will base its future development The intent is to combine the functionality of the Overlay Mixer plus Video Renderer in one module that takes advantage of the latest developments in DirectShow We are finding that at its present stage of development with our hardware VMR9 does not achieve the very high efficiency of YUY2 to VMR7 Also although VMR9 is supposed to function as an overlay mixer for rendering captioning from the driver s DShow CC or VBI pin we have never seen it function correctly Loe l spray 212 Yideo Serialbigtal In 213 Video
56. g Group These indicators allow you to see the current algorithm These are NOT control buttons they are read only indicators They are mainly useful in Auto Mode to indicate which algorithm Inverse Telecine or Motion Adaptive is currently being applied They are also useful in Inverse Telecine mode to show whether telecine content is present and the Inverse Telecine algorithm is being applied The mode currently in use is marked by a green arrow Figure 2 29 A mode that is possible under current control settings but not currently in use is marked by a dark grey arrow A mode that is not available with the current control settings is marked by a pale outline arrow Currently Using O oo0o Cine Phase gt Inverse Telecine O gt Motion Adaptive With inverse telecine enabled when telecine content is detected the five Cine Phase dots show whether the 3 2 pulldown sequence is shifting If it is shifting the green marker will shift This will happen in mixed telecine video content and also in content that was converted to telecine and then post edited in the video domain Whenever a shift happens there will be a few frames that are not deinterlaced If these shifts are frequent you may have to switch to Motion Adaptive deinterlacing for consistent quality When the telecine detector locks the first time in a streaming session the leftmost Cine Phase button will be green If the telecine sequence is perfectly coherent the ph
57. ge frame sizes with the deep pixel depth 24 or 32 bit or complex format YVU9 or YUV12 planar impose heavy demands on the PCI bus s data transfer capacity Our experience is that some systems cannot handle these formats at full frame sizes Systems vary in their data transfer limits The characteristics of the PCI bridge are often more important than processor speed If you are having problems we recommend that you Appendix B Page B 1 Osprey 240e 450e User Guide Appendix B Use a smaller frame size 480x320 or less Use a shallower color format RGB15 or RGB24 instead of RGB32 Try a YUV format instead of an RGB format and a packed format instead of a planar format If you have a choice of PCs for video capture try using another system with a different system board chipset Multiple Horizontal Lines Across Video Image If there are multiple regularly spaced horizontal lines across your video image and your source material is copyrighted and copy protected you are seeing Macrovision copy protection The lines can vary in color from yellow to blue to green These lines are not present in every frame of video There may also be a black band at the top of the frame There are other brands of copy protection besides Macrovision Some of these employ similar methods resulting in the above and others do not This is a good example of Macrovision effects but you should find a good way if possible to briefly note that there
58. han the driver s internal rendering For CC rendering the output of the Line 21 filter connects to an input of the Overlay Mixer The best video format to use with Overlay Mixer is YUY2 53 Osprey 240e 450e User Guide Chapter 3 Preview Pin to VMR7 10 Yideo Composite In MR InputO 1 Video SVideo In O women ae Video Renderer sprey 300 Crossbar 1 212 Video Serialbigital In 3 Video 1394 In VMR7 is short for Video Mixing Renderer 7 VMR7 is a newer renderer that is generally much faster than the old Video Renderer When the driver is running in Direct Mode VMR7 uses an efficient DirectDraw configuration to render with almost no CPU overhead especially when YUY2 video is used When the driver is running in PostProcessing Mode DirectDraw is not used but it is still the fastest renderer Unfortunately VMR7 is not the default video renderer in building a filtergraph an application must explicitly ask for VMR7 in its graph in order for it to be used This causes many simpler applications to render video much less efficiently than they might VMR7 works best with YUY2 video and there is usually little reason to use any other format It will however work fairly well with the RGB format usually RGB32 that matches the current screen depth We recommend letting DirectShow choose the video format It will generally make the correct choice In particular on some usually older systems if two video
59. ignal levels Again there is a Dflt button to restore the default value 65 Osprey 240e 450e User Guide Chapter 5 CHAPTER 5 Osprey Applications CCChannels 5 CCChannels Osprey capture filter Osprey 300 Analog Video 1 Channel Network Name Current Content Advisory Channel Call Letters and Native Channel Channel Network Name current content Advisory Channel Call Letters and Native Channel Channel Network Name current Content Adwisory Channel Call Letters and Native Channel un Field Field 1 2 un CC 3 ES un CC 4 Native Channel Text 3 E E B amp Text 4 DS un Native Channel K cS un Native Channel Assesses gt Ln Raw 1 O Raw 2 as un cc1 txt LC Write file filename window title Y E MAIL THAT YOU SENT HIM BACK HIS WASN T NASTY TO YOU YOU GOT A PRETTY FRESH MOUTH AND YOU DION T RETURN IT IN JANUARY BECAUSE HE SENT THIS TO YOU ON FEBRUARY 18th sO YOU STILL HAD IT IN FEBRUARY YOU RE A NASTY GIRL MICHELE JUDGMENT FOR THE PLAINTIFF IN THE AMOUNT OF 150 THAT S ALL GIVE HER THE SNOWBOARD gt gt Byrd PARTIES ARE EXCUSED YOU MAY STEP OUT gt gt Announcer JUDGE JUDY CONTINUES IN A MOMENT AND ON THE NEXT JUDGE JUDY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 70 0 70 CCChannels displays closed caption and XDS vchip data Check the CC1 box to open a window displa
60. ins on the device and have the same settings for all filters and pins Adaptive deinterlacing does not affect quality of single field 2 1 or 4 1 exact scaled video so long as the sharp algorithm is used Inverse telecine does not affect single fieldexact scaled video Crop logo and caption settings can be different for each pin of each filter and the driver maintains separate settings for each filter and pin Video size color format and frame rate can also be different for each pin It is the responsibility of the application to maintain these settings 32 Osprey 240e 450e User Guide Chapter 3 Efficient Video Rendering The following information is primarily useful to developers but may also be helpful for those who want to fine tune existing applications If you are seeing poor rendering performance in terms of either excessive CPU utilization or jerky stuttering video read this section There are at least four basic ways to render video from the capture driver onto the screen They vary greatly in their efficiency and applications do not always make the best choice of renderer In these descriptions it is assumed that the AVStream driver s Preview Pin is being used The results would be the same if the Capture Pin were used instead Preview Pin to Video Renderer 0 Video Composite In gt Input 4 Video SVideo In 0 Video Decoder Out i Osprey 300 Crossbar 1 2 Video Serialbigital In Vid
61. isplay adapter memory that are performed by the CPU rather than with direct memory access DMA operations may be inordinately slow If you are streaming video or capturing to file you will not see numbers that are this high If you are encoding video you may see high CPU utilization but much or most of it will be from the encoder rather than the driver PostProc PostProc Rendering Pathway w o Deilace w Deilace Video Renderer RGB15 gt VR 13 16 RGB32 gt VR 10 13 YUY2 gt AVI gt VR PA 13 YUY2 gt OVL gt VR 18 20 VMR7 RGB32 gt VMR7 25 26 YUY2 gt VMR7 8 10 VMRO9 YUY2 gt VMR9 13 15 55 Osprey 240e 450e User Guide Chapter 3 PostProc PostProc Rendering Pathway w o Deilace w Deilace Video Renderer RGB15 gt VR 44 52 RGB32 gt VR 44 50 YUY2 gt AVI gt VR 49 56 YUY2 gt OVL gt VR 55 62 VMR7 RGB32 gt VMR7 54 61 YUY2 gt VMR7 39 43 VMRO9 YUY2 gt VMR9 47 52 Video Standards and Sizes Video Standard refers to whether the video signal format is NTSC PAL or SECAM Depending on the exact product version you have some or all of the following standards will be available 525 line formats NTSC M North America NTSC J Japan 625 line formats PAL B D G H I many countries in Europe and elsewhere B D G H and I refer to five nearly identical subformats Full sized NTSC M and NTSC J have 525 lines total 480 lines visible
62. ixer click the update button to refresh the settings 64 Osprey 240e 450e User Guide Chapter 4 As the screenshot above shows the Audio Level control is different depending on which input is selected The Input Reference level is meaningful only on the analog unbalanced and balanced inputs and is calibrated differently for each when a digital input is selected this control is disabled This is a hardware gain control with the default level chosen such that the expected amplitude of a full volume input signal will have adequate headroom without clipping If you do experience clipping or are working with very low level signals you can adjust this level On this control a higher reference level results in lower gain so the quietest setting is at the top of the scale Click the Dflt button to restore the default value Input Mono Source Mode Unbalanced Use Left Channel Yolume Preamp Analog Software Prescale Boost 12dB 30d6 54dB 30 0 30 0 dB 0 dB cine Volume Listen Preferred Audio Sample Rate cu Any Supported Rate The Boost setting is a software gain adjustment that applies to both analog and digital inputs Boost can be set individually for each input It supplements the system mixer volume controls by providing a very wide adjustment range You can use it to calibrate or normalize input levels across multiple inputs or to accommodate microphones or other non line inputs that have nonstandard s
63. l applications use the driver s default output size or present it as a choice you may have to manually enter the settings calculated by CropApp into the application The Granularity group allows you to determine the allowed sizing increments for the selected video format For example if you select YVU9 in the drop list you will see that the video widths allowed in this format are modulo 16 that is 320 336 352 etc and the video heights allowed are modulo 4 240 244 248 etc All editing of the crop size will snap to the nearest allowed size The left and top of the crop have to be placed on even pixel boundaries for example in YVU9 the width must be 320 336 etc and the left side must be 0 2 4 etc Osprey Cropping ee OSPREY VIDEO a 4 Osprey 220 Video Device 1 w 4 a gt 4 7 rr 2 f Reference image i w K YC TV A gt an L V E Width 640 NTSC Square Height 480 Cropping parameters x 46 t vo mm y Enable Width 520 t Height 342 eig y Default Output Size i q DOW 4113 38 Width 372 Height 244 Granularity Color Format Width 4 Height 1 Drag center to move Drag edges to resize Selecting a format here causes CropApp to use that format for its own rendering but it does not cause that same color format to be selected in your application In only ensures that your crop size will work with that color format when it is used 68 Osprey 2
64. l can be used to blend the logo graphic with the background video The logo can be interactively positioned and scaled The logo appears on both captured and previewed video If the capture and preview video are different sizes the logo 1s scaled to look the same on the preview video 39 Osprey 240e 450e User Guide Chapter 2 The logo property controls work best when you are already running preview video With preview video running you can view your changes interactively If your application displays capture video in real time capture video can be used instead The logo property is organized as two sub pages File and Color and Position The Pin Select control group and Enable Logo are common to all three For other controls click the File Color or Position radio button to bring up the right sub page Logo Pin Select When the Both radio button is selected changes you make to the logo setup apply to both the capture and preview pins Figure 2 40 If you like however you can have different setups for the two pins For example you could enable the logo on the capture pin but not on the preview pin and thereby save some CPU time When you select the Capture radio button the current logo settings for the capture pin are loaded and changes you make apply only to the capture pin not to the preview pin The Preview button works analogously Windows Media Encoder does not grey out the Pin Select choices and
65. le instances of each filter This control enables you to run multiple instances on one device of applications that do not have device select controls Leave this turned off unless you have a specific need for it Turning it on will affect crop logo and caption settings They will share a filter and not stand separate Save the most recent crop logo or caption setting and overwrite settings that might have previously been saved from another application When you apply this change a message box comes up asking to restart the system this change will not work correctly until you do so 25 Osprey 240e 450e User Guide Chapter 2 Osprey 450 Video Device 1A Properties E Device Captions Logo Size and Crop Input Video Proc Amp Video Decoder RefSize Filters SimulStream SimulStream is enabled for this device Multiple instances of one filter with same crop logo caption settings usually recommended O Multiple filters with different crop logo caption settings advanced ard f Cleave mor Asclre MUI Les UE EVIL SimulStream is a purchased option In Figure 2 26 you can see the caption indicating SimulStream is enabled It makes a single hardware device appear as several separate devices capturing the same input stream Each stream can have different size color format frame rate crop logo and captioning You can have multiple video capture streams in a single application or multiple applicati
66. lor while a less saturated hue appears more muted and grey With no saturation at all the hue becomes a shade of grey You are able to adjust the saturation level in the event it is altered by a video feed This slider has eight positions corresponding to eight hardware filter settings Generally the positions to the left result in smoother video the positions to the right result in sharper video Since each step engages a different combination of discrete filters some steps may result in slight differences while other steps may result in large differences The range is 0 to 7 You would rarely use this control however a need may arise for its use In the simplest terms the input of a feed from a device into your card may not match the digital output on your screen The gamma control allows you to balance the red blue and green from the input to output within the normal range of people s perceptions Table 2 2 Osprey 240e 450e User Guide Chapter 2 Note The grayed out features after gamma are not implemented on the Osprey cards The driver does not implement White Balance and Backlight Comp controls and the Auto checkboxes do not function because the driver does not implement automatic setting of the Proc Amp adjustments For all of the Video Proc Amp controls the driver maintains one settings per Osprey device It does not maintain individual settings for each input or type of input When you change the video standard or input yo
67. n just described so only use it if you are sure you need it Note that you do not have to use this mode if the only things you want to be different on different streams are the video output size color format and or frame rate The application stores these settings not the driver The term multiple filters refers to the method of saving and accessing these different settings You can have 1 to 10 different filters each holding different settings The number of settings is determined by the edit box in the picture above Show 4 filters per device For example suppose you elect to have 4 filters per device each with separate crop logo and caption settings Let s say the underlying device has had the name Osprey 240 Video Device 1 With SimulStream enabled when you open a list of capture devices you will see Osprey 240 Video Device 1 1 Osprey 240 Video Device 1 2 and 1 3 and 1 4 To set the custom properties for one of these filter select 1t from the device list and open the driver properties dialog The title at the top of the dialog will confirm that you are setting up for example Osprey 240 Video Device 1 2 When you set crop logo and caption settings these will be saved separately for Device 1 2 and will not affect Devices 1 1 1 3 or 1 4 Settings that are not per filter such as Reference Size or the Video Proc Amp settings will affect all filters on the underlying Osp
68. o will shift only on every second increment 0 2 4 Source Width This control is available only on the Osprey 240e and Osprey 450e series board Figure 2 19 Source Width J sss 704 The Source Width control can be used to trim the black left and right edges of an image This control is only available for NTSC video and only when the Horizontal Format is set to Square Pixels such that the reference size is 640x480 The suggested procedure is as follows 1 With video preview running click 720 to display the entire image which will usually include black left and right edges Changes will appear interactively 2 Use the Horizontal Delay control immediately above this control to center them image so that the black edges are of equal width 20 Osprey 240e 450e User Guide Chapter 2 3 Click 704 to trim the image to the nominal borderless width 4 Click and to adjust the trimmed size so that the black edges are completely removed but no active video is lost The allowed range is 688 to 720 It is possible to obtain the same result using the cropping control Size and Crop Tab but there are some differences 1 The Source Width control affects all pins and all filters on the device whereas the crop control would have to be set separately for all SimulStream filters 2 In Post processing Mode this operation is often more efficient in terms of processing than a crop operation The crop and scale a
69. of one capture pin and one preview pin on the device at a time However there are no restrictions on combinations of video size and rate color formats or crop settings The driver will color convert and copy video as required to deliver up to 25 or 29 97 frames per second in any format to the two pins 2 With SimulStream enabled there can be multiple capture pins and multiple preview pins Each capture and preview pin pair is placed on a separate filter The maximum number of each type of pin is the same as the maximum number of filters you have elected to expose in the SimulStream control group Any pin can produce video at any size rate color format and crop setting Of course there will be practical limits imposed by the bandwidth of the machine 3 The following post processing filters can be applied with or without SimulStream enabled e motion adaptive deinterlacing and inverse telecine e gamma correction e logos e on video caption rendering Some of these filters operate globally on all filters and pins of a device and some operate on a per filter or per pin basis The Video Proc Amp controls brightness contrast hue saturation and sharpness are applied globally in hardware to the incoming video The basic reference size CCIR 601 or square pixel is established in hardware Horizontal delay is also performed in hardware Deinterlace inverse telecine and gamma correction are applied to all filters and p
70. omates the Plug and Play steps needed to install the drivers and ensures that they are performed correctly It also installs the bundled applets and User s Guide If you have multiple Osprey capture cards in the system it configures all of the boards at the same time This is the method we recommend especially if Osprey software does reside on your host computer After the install is run the software detects the card and its drivers initiate automatically If updating Osprey software then uninstall the previous software version reboot your computer and install the update Installing the Osprey AVStream Driver Insert the Osprey Software CD into your CDRom drive The main menu for the Osprey software will appear if autoplay is enabled If the main menu does not automatically appear click_on the Window s Computer Icon and select the CDRom and the setup exe Icon The Osprey AVStream Install Shield Wizard will engage and will guide you through the installation process Custom Installing the AVStream Software If during the installation process you choose a Custom installation you will have some limited options See the screen in Figure 1 1 Osprey 240e 450e User Guide Chapter 1 al sar ag ix Osprey240 installsthield Wizard Custom Setup Select the program features you want installed Click on an icon in the list below to change how a feature is installed Feature Description Documentation Utilities Driver Fil
71. ons each with one or more capture streams For details about purchasing and installing SimulStream refer to http www viewcast com The driver includes an evaluation version for you to try out for free Evaluation mode works the same as licensed SimulStream except that an evaluation mode graphic is always displayed on the video You can have as many streams from the device as you want They can different resolutions bit rates and formats The term one filter refers to the fact that all streams have the same Osprey custom properties Specifically cropping logos watermarks and NTSC Closed Caption rendering settings must work the same for all streams on the device The advantage of this mode is that it is simpler We recommend this mode if you don t use Osprey custom cropping logos or Closed Captions or if all streams have the same settings You can use the OspreyWizard applet included with new versions of the driver to do all the setup for the One Filter option This setting affects all devices served by the currently accessed driver The driver will advise you to restart the system or your application if this is needed Multiple Filters Use this mode if you are using Osprey custom cropping logos watermarks and NTSC Closed Caption rendering and want each stream to have separate settings for these items 26 Osprey 240e 450e User Guide Chapter 2 This mode is definitely more complicated than the One Filter optio
72. ontrols shows you the features related to the reference size format and proportions of the video Most users can set up this page once and only refer to it on an occasional basis since this page does not provide everyday control for the final output size of your video You ll likely control final output size from your application the Crop tab or from the Pin Properties dialog described in the next section Osprey 240 Video Device 1 Properties Device Captions Size and Crop Video Proc Amp Video Decoder Filters Horizontal Format Reference Size for Crop and Logo Placement Square Pixels 25 line NTSC width O CCIR 601 625 line PAL SECAM Height 16 9 Wide Set NTSC PAL SECAM in Input Tab C Use WideScreen Signal w55 525 Line NTSC Vertical Format 3 480 Lines For General Use Horizontal Delay Start video at line number BE EJizarzes s o Use this control to hide data lines at top of video Source Width Can t decode closed captions if top line is 21 284 or 22 285 J 688 485 Lines For Special Apps Only 704 5 Coma a Horizontal Format Horizontal Delay Source Width Reference Size for Crop and Logo Placement 525 Line NTSC Vertical Format 18 Osprey 240e 450e User Guide Chapter 2 Horizontal Format Horizontal Format CCIR 601 16 9 Wide Use Widescreen Signal WSS Use the Square Pixels setting for normal 4 3 video Figure 2 1
73. osite camera Reverse field order D Cam analog transfer The Osprey 240e and Osprey 450e use the same driver You will see the same Video Device properties whether you choose the Osprey 240e or the Osprey 450e If you have other Osprey cards they can still coexist on your PC but they will use a separate version of the drivers provided with the card You will need the driver version for Video Capture cards you utilize Select the video input NTSC PAL SECAM video standard and Input Input Format Video Proc Amp Set brightness contrast saturation hue and sharpness Video Decoder Select the video standard NTSC PAL SECAM Setting Horizontal format and delay source width and so forth Osprey 240e 450e User Guide Chapter 2 SimulStream deinterlace and inverse telecine Test Pattern Capture Buffers Diagnostic Logging Set up on video closed caption rendering Logo Set up on video logos Size and Crop Set the default size enable cropping set the cropping rectangle Table 2 1 Telecine refers to the technology used to transfer or repurpose analog film into electronic media Some of the 4 2 drivers controls work interactively and changes in value immediately update the video Examples include brightness contrast hue saturation and sharpness Osprey 240e 450e User Guide Chapter 2 Devices and Global Controls The Osprey 240e and Osprey 450e Video cards have the ability to present multiple output streams f
74. osition and Size sub tab lets you position and scale the logo It is strongly recommended that you have preview video running when you use these controls The large indented rectangular area at the top of this sub tab represents the video area where the logo can be positioned The smaller rectangle represents the logo To position the logo click on the logo rectangle and drag it to the new position The four Nudge buttons L R U and D move the logo left right up or down exactly one pixel at a time on the output video Since the positioning rectangle may be scaled down from the full video size the Nudge buttons allow more accurate positioning of the logo The slide control at the bottom right of this sub tab controls the scaling of the logo The 1X Scale button returns the size to the original size of the bmp graphic The quality of a scaled image will not be as good as the quality of the 1X image We recommend that wherever possible for production work you prepare artwork of the exact size at which it will be used 42 Osprey 240e 450e User Guide Chapter 2 Properties Input VideoProcAmp VideoDecoder RefSize Filters Device Captions Logo SizeandCiop Pin Select Capture C Preview Both File and Color Position and Size IV Enable Logo Notes on Logos e Because the logo properties tab is used to set up a logo interactively on live video its behavior is different from the behavior of the other tabs
75. pport mixing of inputs you have to select one stereo input at time so the DirectShow design is not very convenient in our case Audio Formats The Osprey hardware supports sampling of analog audio at 32 44 1 and 48 kHz in 16 bit PCM format Captured audio data is down sampled and reformatted if necessary by Microsoft system audio components allowing an application to capture audio data in 8 bit and 16 bit mono or stereo formats at any of the following data rates 8 kHz 11 025 kHz 16 kHz 63 Osprey 240e 450e User Guide Chapter 4 22 05 kHz 32 kHz 44 1 kHz 48 kHz Audio Playback Osprey cards provides audio capture only not audio playback Continue to play back captured audio using your system soundcard Audio Configuration The OspreyConfig applet is included as part of the Osprey AVStream driver package It is also provided in source form in the Osprey AVStream SDK It provides supplementary controls that are not available via the standard system properties OspreyConfig s controls are device specific and apply only to Osprey audio capture devices Use the Device menu list at the top of the applet s window to select which device you are controlling Preferred Audio Sample Rate The audio sample rate is the rate at which the hardware samples the incoming audio which may differ from the sample rate delivered to the client application The choices are to allow Any Supported Rate or to force the sampling rate
76. r or manufacturer of your radio or television receiver or speak with an experienced radio TV technician The Osprey 450e Video Capture device described has been found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against i MN User Guide ViewCast UL Statement FCC Notice Product Disposal Information harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense NOTE This reminder 1s provided to call to the CATV installer s attention Section 820 40 of the NEC which provides guidelines for proper grounding and in particular specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as practical Shielded Cables Connections between this device and peripherals must be made using shielded cables in order to maintain compliance with FCC radio emission limits Modifications Modifications to this device not approved by ViewCast Corporation could void the authority granted to the
77. ranteed that your crop and output sizes will never be adjusted regardless of what video format you select now or in the future Enable Cropping If you uncheck the Enable Cropping checkbox your video will not be cropped regardless of any crop settings you might previously have made The edit boxes showing the edges height and width of your crop will be read only and will show settings for full frame uncropped video Enable Cropping Top 120 360 Bottom Width Height 580 Right E 240 Left 60 If you check the Enable Cropping checkbox your video will be cropped to the indicated boundaries Previously stored crop settings will be recovered The six edit boxes are enabled The Top and Left boxes set the top left corner of the cropping rectangle The Right and Bottom boxes set the bottom right The Width and Height boxes set the size of the rectangle The Recalc Button The Recalc button recalculates whichever of the six crop edit boxes you have not filled in For example if you set Top Left Width and Height Recalc will calculate Right and Bottom If you set Top Left Right and Bottom Recalc will calculate Width and Height Whichever of the vertical group was least recently touched is the item that will be recalculated similarly with the horizontal group If you have only changed one box of the group you can force the order of recalculation by clicking one of the other two boxes For example If you have changed Left and
78. re done in hardware so if you are using the resultant 640x480 image directly without further cropping there is no scale crop processing cost incurred Reference Size for Crop and Logo Placement Reference Size for Crop and Logo Placement 525 line NTSC Width 625 line PAL SECAM Height Set NTSC PAL SECAM in Input Tab This part of the dialog is read only because you do not set it directly rather it shows the results of more fundamental settings made elsewhere in the dialog The settings shown by the 525 line 625 line buttons reflects the video standard selected in the Input or Video Decoder tab See Figure 2 20a NTSC formats result in 525 line 29 97 frame per second video PAL other than M and SECAM formats result in 625 line 25 frame per second video The Height and Width boxes show the size of the incoming video based on all the settings you have made 21 Osprey 240e 450e User Guide Chapter 2 525 Line NTSC Vertical Format 525 Line NTSC Vertical Format 480 Lines For General Use Start Video at Lines 23 286 Start Video at Lines 22 285 O Start Video at Lines 21 284 CC not available O 485 Lines For Special Apps Only 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 480 line video is selected you can sel
79. rey 240 Video Device 1 Later whenever you select one of the four filters as your capture filter the Osprey custom crop logo and caption settings previously set for that filter will be selected automatically You can have multiple streams on each filter For example you could have four streams consisting of two instances of Osprey 240 Video Device 1 1 and two instances of Osprey 240 Video Device 1 2 The first two instances will have filter 1 1 s settings the second two instances filter 1 2 s settings This setting affects all devices served by the currently accessed driver The driver will advise you to restart the system or your application if this is needed 27 Osprey 240e 450e User Guide Chapter 2 Deinterlace Deinterlace Currently Using Auto 80000 Cine Phase Inverse Telecine gt Inverse Telecine Motion Adaptive Adjust E gt Motion Adaptive C Off The deinterlace group has four radio buttons Auto Apply inverse telecine deinterlacing to all telecine video Apply motion adaptive deinterlacing to all video that is not telecine Switch dynamically between the two modes as the content changes Available for NTSC video only Inverse Telecine Apply inverse telecine deinterlacing to all telecine video Perform no deinterlacing of video that is not telecine Available for NTSC video only Motion Adaptive Apply motion adaptive deinterlacing to all video
80. rity and alignment settings affect values you subsequently enter for crop width crop height and default output width and height they will be adjusted to these granularities Adjustments are made when you click Recalc Apply or OK You can change the video format in the drop box so that granularities are set for a different format Note that this does not automatically cause the pin to have this format you still have to select that format using the Pin Properties dialog or via your application It just ensures that the sizes you select will work correctly when you do select this color format in the application If you set up your crops with a less restrictive granularity for example YUY2 and then capture with a more restricted granularity for example 1420 the driver may automatically adjust the video crop and or output size without notifying you Or the capture may fail You may also find that in the Pin Properties dialog the default size you wanted is not listed because it is not a legal size for this format 46 Osprey 240e 450e User Guide Chapter 2 If you select none as the color format s the minimum granularity and alignment adjustments are applied to your crop and size data If you select any as the video format the coarsest granularity required by any of the available formats is applied to your crop and size data In practice any is the same as YVU9 that is 4x4 You are gua
81. rom a single input device For example a company may wish to do a webcast globally to resellers users or potential customers Using the Filters Tab one can set up different output streams with different bit rates to accommodate users with different bandwidths Now we need to address the effects of changes made on each channel Some changes may affect the filter on which you work These include cropping logos and captions Change those on the Osprey 450e Device 1A Filter 2 for example and they will only affect that filter See Figure 2 6 Alter the values on Video Proc Amp Video Decoder Input Filters Device and or RefSize tabs and the effect will become global to the card All characteristics on each device on the card will change to those changed on a single device This is limited to the card on which the device changed If you make changes on an Osprey 240e card residing with an Osprey 450e card a change on the Osprey 450e will not affect the Osprey 240e devices MN OspreyConfig Command About Osprey Devices Fs Osprey 240 Device 1 Osprey 450 Device 14 Audio Filter Wideo Filter 1 ideo Filter 2 ideo Filter 3 Yideo Filter 4 Osprey 450 Device 1B H Osprey 450 Device 1C E Osprey 450 Device 1D Show Properties for Selected Filter Place OspreyConfig icon E in the Control Panel Help Place OspreyConfig icon in the Taskbar You will see reference to pins and filters in DirectShow
82. s VBI data In PAL World Standard Teletext WST is encoded in the VBI data region The illustration above shows an NTSC CC waveform This illustration is made using the VbiGraph sample app that is included with the driver and also available in source form in the Osprey AVStream SDK The driver delivers VBI data as raw waveforms which are then decoded by external DirectShow filters DirectShow provides three filters under the classification WDM Streaming VBI Codecs that will decode data from VBI pins CC Decoder NABTS FEC VBI Codec WST Codec With the Osprey AVStream driver either the CC pin or the VBI pin can be used to obtain closed caption data If the VBI pin is used an extra filter is required to turn the raw waveform into CC character pairs The filtergraph below shows NTSC CC using the VBI pin the graph in the CC section above shows CC from the CC pin in the graph below a CC Decoder filter must be inserted into the graph For PAL SECAM the following graph will display teletext and CC In this graph to view CCs you have to select the CC page probably page 801 in the WST Decoder properties When SimulStream is not installed the driver supports two VBI pin instances In practice a DirectShow Smart Tee Filter can be inserted into the graph to make any number of VBI pins When SimulStream is installed any number of VBI pins are allowed 61 Osprey 240e 450e User Guide Chapter 4 CHAPTER 4 The Audio Driver
83. s and letterboxing when the input video aspect ratio does not match the output aspect ratio If the aspect ratio of your content is subject to change between 16 9 and 4 3 it will be useful to the enable this control WSS is a line of the vertical blanking interval VBI that encodes the aspect ratio of the video It is normally line 20 of 525 line video and line 22 of 625 line video It is generated by newer DVD players and is present in PAL broadcast content The Use WideScreen Signal WSS control is useful for both 4 3 and 16 9 input formats and for both 4 3 and 16 9 output formats When selected it has the following effects 4 3 video on a 4 3 window shows without sidebars or letterboxing 4 3 video on a 16 9 window shows with sidebars 16 9 video on a 16 9 window shows without sidebars or letterboxing 16 9 video on a 4 3 window shows with letterboxing 19 Osprey 240e 450e User Guide Chapter 2 Horizontal Delay Horizontal Delay alo The Horizontal Delay control moves the video horizontally in the capture or preview frame Video devices differ in their timing characteristics so some devices may need different adjustments from other devices Adjust this control if you are seeing a black line to the left or right of the video Figure 2 18 Use the left and right arrow buttons to move the video to the left or right Click 0 to restore the default zero setting The allowed range is 12 to 11 With uncropped video the vide
84. s it becomes aware that telecine sync has been lost However it may take it several frames to discover that this has happened these frames will not be correctly deinterlaced You should decide whether to use Auto Inverse Telecine or Motion Adaptive mode depending on the type of content you expect If the content is consistently telecine 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 will result in the best overall quality but there may be several frames that are not 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 will give the most consistent results The quality of telecine sequences will not be the best possible but there will be no instances of frames not deinterlaced at all due to telecine re locking Osprey 240e 450e User Guide Chapter 2 Section VI The Device Tab These controls Figure 2 31 are less often used items Unless specifically noted changes made on this page apply to all filters and all video preview and capture pins on the currently selected device Unless noted different settings may be set and stored for different devices Osprey 450 Video Device 1A 1 Properties Input Video ProcAmp VideoDecoder RefSiz
85. sist you in choosing crop and output sizes that observe those restrictions Since alignment is the same for all formats there is no control for it 45 Osprey 240e 450e User Guide Chapter 2 Osprey 450 Video Device 1A 1 Properties Input Wideo Proc Amp Video Decoder RefSize Filters Device Captions Size and Crop Pin Select O Capture O Preview Both Width Height Reference Size see RefSize tab Granularity Capture Preview YUY2 x 1 Width Height Ei Since the preview and capture pins may be set to different color formats they may have different granularities When the Crop tab is opened the two drop boxes titled Capture and Preview are initialized to the current or most recently used format for the selected pin See Figure 2 48 If your Pin Select setting is Capture only the Capture granularity box will be enabled similarly for Preview The two small read only edit boxes to the right of the group show the horizontal and vertical granularities for the selected color format for the selected pin type If your Pin Select setting is Both both the Capture and Preview drop boxes are enabled and the two boxes to the right of the group show the worst case granularity that works for both the Capture and Preview color formats For example if the Capture color format is 1420 and the Preview color format is YUY2 the resultant granularity is 1420 s more stringent 4x2 requirement The granula
86. supports the standard DirectShow CC and VBI pins The CC character pair data can be streamed to applications such as Windows Media Encoder 9 or rendered directly to the screen using the DShow Overlay Mixer filter The 4 2 driver can be set to output CC field 2 character pairs on the CC pin instead of the standard CC field 1 data XDS vchip data is embedded in the field 2 stream The GraphEdit filtereraph shown here displays CC on rendered onto preview video The Overlay Mixer combines the CC overlay with the preview video which is then rendered onscreen It is also possible to capture the character pair stream as a standard stream of an avi file although there will be problems with timestamping and synchronization or to directly manipulate the CC stream in a standard way with a custom application Our testing with the current version of DirectX 9 indicates that closed captions do not render properly with the VMR9 renderer in place of the Overlay Mixer Video Renderer combination Therefore the default Video Renderer in combination with Overlay Mixer should be used When SimulStream is not installed the driver supports two CC pin instances One could be associated with the video capture stream the other with the preview stream In practice a DirectShow Smart Tee Filter can be inserted into the graph to make any number of VBI pins When SimulStream is installed you can have two CC pin instances per SimulStream filter There are three user
87. t include instructions for user installed accessories FCC NOTICE WARNING Connections between this device and peripherals must be made using shielded cables in order to maintain compliance with FCC radio emission limits WARNING Modifications to this device not approved by ViewCast Corporation could void the authority granted to the user by the FCC to operate the device The Osprey 240e Video Capture device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this device does cause harmful interference to radio or television reception the user 1s encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the computer into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help If the above measures are unsuccessful please consult the deale
88. ter Scaled i420 Logo Renderer Scaled YUY2 scale and Caption Color Crop Renderer Converter Scaled Rabi5 H D1 YUYZ2 The drawing shows a possible graph of video data flow within the driver in PostProcessing Mode This particular graph assumes that SimulStream is activated so that more than two video pins are possible There are four video output pins represented by the pale yellow round rectangles 51 Osprey 240e 450e User Guide Chapter 3 The upper pin produces scaled and or cropped 1420 video with a logo bug and Closed Captions rendered on the video The second pin produces scaled and or cropped YUY2 video with a logo but no captioning In this particular graph the upper two pins are scaled and cropping identically so a single scaling operation can service both pins The third pin has a different scale crop specification so its video runs through a separate scaler cropper The video is captioned and converted to Rgb15 The lower pin produces unscaled uncropped D1 YUY2 video with no logo or captioning The video routed to all pins is in this example deinterlaced and gamma corrected Deinterlace or inverse telecine if used are always applied globally to all pins as is gamma correction Scaling cropping logoing captioning and color format conversion are performed separately for each pin Postprocessing Mode has the following capabilities 1 With SimulStream disabled there is still a maximum
89. the controls provide adjustments that improve the clarity of video from monochrome sources When a composite input line is selected and a monochrome device is attached the result will be a sharper image as shown in the notch kill item in Figure 2 11 This control is only for true monochrome devices without color capability B amp W composite camera Black and white input sources are rare these days but some do exist For example you may want to stream black and white historical film in a documentary film Reverse field order This control works with digital cameras routing through the Osprey card s analog composite or S Video input The normal field pairing order for NTSC cameras is Odd Even However some progressive video cameras and footage require pairing of even odd frames Refer to Figure 2 12 The Reverse field order can correct problems with interlaced video effects where alternate lines are reversed 12 Osprey 240e 450e User Guide Chapter 2 gt Input Format ma T SA A k 4 poe Composite Camera my Te aut 3 Aa eRe Hee Yee O Jaw SPL neverse y i j Y j e 13 Osprey 240e 450e User Guide Chapter 2 Section II The Video Proc Amp Tab Video Proc Amp stands for Video Process Amplifier It has the ability to control various characteristics of streaming output from Osprey 240e 450e cards You can see in Figure 2 13 that the Video Proc Amp is the second tab from the left of the
90. tions a custom property and callback function that allows it to return the VITC data for each frame along with the frame s timestamp to the application Since use of this capability requires custom programming it will not be further discussed here Refer instead to the Osprey AVStream SDK Users Guide A sample SDK applet named TCApp illustrates the interface Timecode Video Marking v Enable Field 17 Line Field 2 Timecode stamping must be enabled in the driver before 1t can be used and the field and line number correctly set To access the controls go to the Device property tab and click the Extras button It is recommended that timecode marking be disabled when not in use especially the auto search feature on a slow machine it uses several percent of CPU bandwidth especially 1f timecodes are not present 60 Osprey 240e 450e User Guide Chapter 3 Note that VITC and LTC Longitudinal Timecode are two distinct encoding systems and this driver supports only VITC A suggested reference on timecode 1s Timecode a user s guide 3rd ed John Ratcliff Focal Press 1999 Vertical Blanking Interval VBI Capture The Osprey AVStream driver provides DirectShow compatible VBI pins VBI data includes Vertical Interval Timecode VITC in both the NTSC and PAL worlds In NTSC line 21 Closed Captioning although it is strictly speaking part of the video interval rather than true VBI data is commonly treated a
91. two streams one from each field CCLineInterp interprets the CC stream in any of three ways 1 It can pass through the raw CC stream from Field 1 and or Field 2 2 It can split off any of the eight CC or Text channels and interpret it into ASCII lines of plain text It can return multiple channels at once and the driver can support multiple instances of the filter running in multiple process spaces 3 It can extract XDS data from Field 2 and return it as XDS packets CCLinelInterp splits out the individual packets but does not decode them in any way CCChannels provides a thin encapsulation of the raw and CC line streams from CCLinelnterp It mainly just prepends the timestamp returned with each line of interpreted text CCChannels provides a more extended interpretation of most of the XDS packet types as in the xds txt window in the illustration If the Write file checkbox is checked before a stream is opened the text as shown will be save to file CCLineInterp ax is ready to use as is if the interpretation format suits your application Otherwise you may want to modify the CC interpreter The source file CCChannel cpp contains a complete line oriented interpreter It preserves horizontal text placement It discards vertical text placement and text modifiers including colors italics and underlines It translates non ascii special characters into approximate ascii equivalents where possible It delimits pop on captions movie style
92. u will not see changes in the slider controls such as the Hue button becoming disabled until the driver properties dialog is closed and re entered 16 Osprey 240e 450e User Guide Chapter 2 Section Ill The Video Decoder Tab The Video Decoder Tab is a Microsoft DirectShow standard control for setting the NTSC PAL SECAM video standards We discussed NTSC while discussing the Input Tab in the early section of this manual PAL and SECAM are standards used in Europe and other parts of the world Your Osprey cards can function in computers in various countries with different standards We depict the Video Decoder screen in Figure 2 15 Osprey 240 Video Device 1 Properties Captions Video Proc Amp Video Standard NTSC_M Signal Detected 0 Lines detected 525 PCR Input Output Enable lt lt e ne a Changes apply to all video previews and stream captures on the currently selected device If you have multiple Osprey cards you can set the input individually for each of them Changes made with this control take effect immediately If video is running and a standard is selected that does not match the incoming signal the video is likely to freeze or glitch until the signal matches the correct standard 17 Osprey 240e 450e User Guide Chapter 2 Section IV The RefSize Tab Changes made on this Tab Figure 2 16 apply to all video previews and captures on the currently selected device The RefSize tab c
93. ustadtanetundtmeees 14 The Video PROC Amp Lab remontada adolece 14 A e UA IA penueddumsnaea E O E 17 TG Y TEE AB ee cla Ml E o AA AR PAI E E E E hootaneduesusensecesacedencueenet 17 AA O A E O AA E V OE E A O dtc aueeustadtaceddacemenes 18 ATA Lo ova CAD A O A o sence E E O e Pe ES OO II 18 ISA EEA NEVNE ENNE ONEEN NEVNE NEAN 19 Horizontal DIA seroraren sonnis a S EEE E EEE ESERE REEERE EEEa 20 DOUG VV A ee N E E E E O EAEE E 20 Reference Size for Crop and Logo Placement coooooooooooononnccnnnnnnnnnnnononononnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnos 21 525 Line NTSC Vertical Format 20 0 0 ccc cccccccsscccseccceeccceecccecceeucsceseceuecseecseeeccsensceeeessueeseeeecsseeeseuseseues 22 SOO Y a E E E E E 23 IA A E EE E E 23 PIOUS 00 Ao PU A e e E 23 o AA E o gubannannageeaananee 25 SHOW N Miers Per COV OE Pe E A e o ro OA 25 Allow multiple instances of each filter occcccccccnnnoonoonnnnonnncnnnnnnnnnnnnononononnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnns 25 Malpie F GETS oieee e PUE On e Ae 26 a A e O ONE ze 28 The Currently Using Greta ii dit 29 Te US DIOS rectal data ias 29 BS Oy Legere te pettoneme T E A E E A A E E E E 32 IA AAA E E A E A E E A E E 32 A AAPP A A A ET E A E A A A E A A E E T ET 32 Number of Capture Buffers Requested ccccccccccccnnooononooocnnnnnnnnnnnnnnnnnononnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnss 33 Diagnostic Log SIG a ooo 33 Device TAT OA OA rad ii 34 A o II II II cones
94. y 80x60 bytes of U data So each U and each V byte together contain the color information for a 4x4 block of pixels Similarly a 320x240 YUV12 format has a 320x240 Y array followed by a 160x120 U array and then a 160x120 V array Note that in the 420 format used by Osprey the order of the U and V arrays is reversed from the order in the YVU9 format 57 Osprey 240e 450e User Guide Chapter 3 Closed Captioning CC The Osprey AVStream driver supports NTSC closed captions in three separate ways 1 Through standard DirectShow CC and VBI pin 2 By rendering captions directly onto video on the capture or preview pin The captioned video can be streamed written to file or rendered directly 3 Through an Osprey custom property On products other than the Osprey 530 540 560 the driver also provides PAL SECAM captions as well as teletext data in raw form via the VBI pin not through the CC pin Refer to the next section on Vertical Blanking Interval VBI Capture for more information The rest of this section is specific for NTSC captioning only Captioning via CC or VBI Pins WE 0560 CC GRF GraphEdit E File Edit View Graph Favorites Options Help Djela S l n m 4 e 2 s m 10 Video Composite In Input 2 1 Video Svideo In EE viden Decoder Cul Video Renderer sprey 560 Crossbar 1 212 Video Serialbigrtal In 23 Video 1394 In A 2 XForm In XForm Out Line 21 Decoder The driver
95. y Config Utility You bought your Osprey Card and installed it in the PCI Express PCIe slot on your computer After installing the card and AVStream driver you want to know how to access to the card s settings and possibly modify them to fit your needs This manual will take you Step by Step through the card settings visually We ll start by opening the Osprey Config utility See Figure 2 1 Afterwards we can explore the driver You will need to use a DirectShow application such as Microsoft Windows Media Encoder or RealProducer We also access card property pages through Osprey Config the utility bundled with our 4 2 driver suite Once installed you can see the card s default settings and change them as needed To open Osprey Config select All Programs in the start menu of your Windows computer then select the ViewCast Window Icon Click the icon select Osprey 240e and 450e then Utilities and the Osprey Config icon becomes visible a Remote Assistance rod Shortcut to Dbe fan Administrative Tools gt a M McAfee gt M Shortcut to graj fan windows Media A Adobe Reader 8 a Osprey 240e and 450e gt fan Utilities xK Osprey Config d 2 Log Off o Shut Down 1 User Guide All Programs iP Start la Tip Other Direct Show applications can find the property page too If you use a 3rd party application you will find how to access the card s settings in the applications party documentation Ospr
96. y of the logo The Size menu allows you to select full or half size video The Device menu displays a list of enabled devices and provides access to the selected device s property pages LogoApp sets the same logo spec for both the Capture and Preview pin If SimulStream is enabled LogoApp will set only Pin Pair 0 To set up other pin instances or to set the capture and preview pins differently use the driver s Logo property page LogoApp Osprey 300 Video Device 1 Device Size About C pth bmp Osprey Bird_light gray bmp Top 7 Height 59 Enable Left 7 width 100 192 Red 192 Green 192 Blue C Translucent Drag logo to move Drag logo edges to resize 69 Osprey 240e 450e User Guide Appendix A Appendix APPENDIX A Osprey Hardware Specifications Environmental Specifications Operating Temperature Range 0 to 40 C Non operating Temperature Range 40 to 75 C RH Operating Humidity Range Between 5 and 80 non condensing 40 C Non operating Humidity Range 95 RH non condensing gradient 30 per hour Operating Altitude Range 0 to 3 048 meters 10 000 feet Non operating Altitude Range 0 to 15 240 meters 50 000 feet PCI Express Bus Compliant Approximate card weight is 85 grams Osprey 240e Long Backplate LINE OUT Connector Audio Out to Breakout Cable Appendix A Page A 1 Osprey 240e 450e User Guide Appendix A Osprey 240e Short Backplate LINE OUT
97. ying captions as lines of text There will be a line break between pop on captions There will not be line breaks between successive lines of rollup captions CC2 CC3 CC4 and the Text channels are not often used Check the Raw 1 or Raw 2 box to view the raw uninterpreted character pairs from field 1 or field 2 respectively Check the XDS box to view interpreted field 2 XDS data The fields at the left of the display show the category of the messages The text in brackets at the right shows the data of the messages Saving to file In order to get text saved to file you have to check the Write file box before opening the streams The text files will be named ccl txt textl txt flraw txt and xds txt and so forth and the files will be placed in the directory where CCChannels exe is located If a file already exists it will be appended to always How to test XDS If a channel supports XDS at all there will always be content advisory information that is readily understandable There will be other fields that may or may not make much sense The main test is whether 66 Osprey 240e 450e User Guide Chapter 5 the XDS interpreted text is grouped into well formed lines with messages that appear that they could make sense to whoever they are meant for CCChannels is a demo app for the underlying filter CCLineInterp ax CCLineInterp uses the Osprey proprietary CC streaming interface new to the 4 2 driver to obtain a stream of CC character pairs or
98. you have the options to choose Capture Preview or Both Pin Select Ocapture OPreview Both Logo File and Color File and Color Position and Size Enable Logo Browse for File C Apth pics 0 sprey Bird light gray bmp The Enable Logo checkbox which is repeated on both sub tabs enables or disables logos If you disable logos all your other logo settings are retained for when you re enable logos again In Figure 2 41 the Browse button brings up a standard file select dialog Logo files must be e In bmp format with a bmp filename extension e In RGB 24 format 40 Osprey 240e 450e User Guide Chapter 2 If you have a graphic that 1s in another format edit 1t with a drawing or photo edit program such as Windows Paint and save it as RGB 24 Enable Keycolor Enable Key Color Okey 182 Red O Magenta 192 Green O Cyan 192 Blue Grey C Other lo Tolerance You can control the key color and the transparency effect If preview video is running you will see your changes interactively A key color is a color that disappears from the graphic so that the underlying video shows through unchanged If the Enable Key Color checkbox is unchecked all colors are displayed If the checkbox is checked key coloring is activated The five radio buttons are activated You can select one of four standard colors dark gray medium gray cyan or magenta or a custom color
99. you want to preserve Width but alter Right then click on Width before Recalc If you have changed Left and want to preserve Right but alter Width then click on Right before Recalc If your specification will result in a crop rectangle that is too large or too small Recalc will adjust it appropriately If it can t set up an allowed size by changing just the third most recently clicked setting then it will try to change the second most recently clicked setting instead or as well If it has to it will change your most recently changed setting Recalc will also factor in granularity and positioning requirements as required In the Default Output Size group Recalc will change the default output size if Auto Size is checked If Auto Size is not checked Recalc will leave the output size alone 1 Tip The crop width and height are subject to the granularity requirements of the selected video format as explained in the previous section For example if your video format is 420 and you try to set a crop width of 360 it will get adjusted down to 352 47 Osprey 240e 450e User Guide Chapter 2 If you enable cropping key in some custom settings and then disable cropping an uncropped specification will be displayed and your settings will disappear from view However the driver does remember your custom settings and if you enable cropping again they will reappear Versions 4 2 0 and later of the Osprey AVStream driver can upscale croppe

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