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Osprey User Guide

1. ta A 2 Bag e e e rr A 3 CST re a m MH A d a na g A 3 eiii rr PEN NM A 4 ST 30 00 M A 5 Appendix E Digital Vid o onthe Osprey 300 20 aag do a dii ada as i aj i da a a aa ic ed ca i B 1 S DEC e e MB Cop Le IP nem mame mre mrve e m mp ui i o o o i ul e a ata Gib aa et int B 2 SV LE CAD E me e rm i i vo vr re me e e ra dia B 3 Mer mmen em men nn ee i i i i nina e li B 4 Appendix C Setting AVStream Driver Properties in Video for Windows Applications eee C 1 Selectia Ene Capture DEVE iii a i P r OE E mG atten saws tie an ba eds sos E eee ees C 1 Selecting the Videc Source and standarnog gasa aa OO a e Nom C 1 Brightness Contrast Hue and SALUFAL LO IL asai ii akne i i aa jea r i ii i iai ia iii i cit C 2 Video Forma ere ae P P P P P vr een C 2 Video TOR WII cU S vo m o am Mmmm C 2 Appendix D Troubleshooting PR e o iar e e at ante e e ne a D 1 lane ViewCast Ospre Video Capture Cards P y 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 documen
2. Custom Setup Select the program features you want installed Click on an icon in the list below to change how a Feature is installed Files DE Osprey 100 and 200 class cards beef Osprey 300 class cards Eg Osprey 440 cards 3 Osprey 530 540 and 560 cards E v Utilities Reguired Files H E v Documentation E I5RegistryFeature1 This feature requires 44KB on vour hard drive It has 4 of 4 subfeatures selected The subfeatures require 3784KB on your hard drive Change Installshield Help Space lt Back Cancel Install to C Program Files WiewCast Osprey AwStreamiDrivers This window will allow you to choose individual components you want to install Click on each components to see the amount of hard drive space it will require You can also change the location on your hard drive in which the components will install This installation option is recommended for advanced users only C C When you install your Osprey Video Capture Card please keep in mind that all computer cards are sensitive to electrostatic discharge Slight discharges from your clothing or even from the normal work environment can adversely affect these cards By following these simple guidelines however you can minimize the chance of damaging your Osprey card e Handle cards only by the non conducting edges e Do not touch the card components or any other metal par
3. e atu dia 23 Vertical Interval Timecode VITO NR ai alia it la it ital vit d til tea la a il a ai a 24 Vertical Blanking Interval VBI CapLbiE Os taia aj raita pa i id di i dan ta iata di ia lg la al N at i 25 Chapter dA The AUdio pl prom RR ios RR le i i ARE A RER e A on PR i RR A RE SR 26 Selecting the Audio Source and Input Volume asa satula a aia ial CA e add A d i ia nani daia ian di tat ta 26 AUO e S em ioan o k P da ie E o e e lit en la ai in i E a ai ina ee m 27 to odr je sm vn talie ala od ei alei biblie sasi aia Galele o e T 27 Audio S Omi SLD o pr ve vo NON e vn 27 Chapter 5 Osprey AD INC UE IIS 2 sasas ac iii a ni tut nd al ii ja n da Bat n lt i ta tt Bi na 29 EAS m e aia i ucida i i e o ii e a ii uita ai s 29 GIODADD ane ceo sa Oa da a ct iu di 30 LOGODE RI E 0 a a dr E e a OR NE EE A SS ene nee GE een ero IMITE E 31 VIB IO Fa o a bacil ani imi DO a arii ian iii lit d e e it a Ja rp ion tai dit 31 se omar mam mem ma mnom da a nem ai i i A r i indiu o po pomo ona 32 Appendix A Osprey Hardware Specifications aaa kaaa A 1 Environmental SpeECiCatiONS ae ER A 1 Bog gt LDU A sot a aia o ne o o PH A 1 OSD 2 10 A 2 le 2 3 O e
4. The distinction between Device and Filter is important mainly to SimulStream users For non SimulStream users Device and Filter effectively 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 its own independent control settings 18 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 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
5. 30dB 15dBu 30dB 30dB dBV dB dBu dB dB 10 0 4 0 0 Unbalanced XLR Balanced XLR AES EBU 1 Select input in mixer Update Select input in mixer i Update Select input in mixer then Update then Update then Update 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 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 signal levels Again there is a Dflt button to restore the default value 28 VED BA c
6. Each Osprey Video Filter also has a Closed Caption pin and a Vertical Blanking Interval VBI pin for capture of specialized 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 C 3 A The 4 0 0 driver has two distinct operating modes Direct Mode isa simple low overhead mode for basic capture PostProcessing Mode enables a number of filters transforms and renderers within the driver and supports the SimulStream
7. On some systems for reasons external to this driver 640x480 video will render 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 Osprey 530 540 560 note This control is implemented only for 525 line standards When a 625 line standard PAL or SECAM is selected CCIR 601 720 pixel sampling is automatically selected and the control is greyed 525 C 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 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 select 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 A i ViewCast Osprey Video Cap
8. and caption settings cannot be kept separately for applications sharing a filter and may interfere with each other in a confusing way The most recent crop logo or caption setting will be the one that is saved it will overwrite settings that might have previously been saved from another application This is a global setting affecting all Osprey 2XX 300 400 or 530 540 560 devices as a group 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 Mode Postprocessing Maximize video QuialiEy _ Maximize Video Throughput Ease Strearns Direct The Mode group selects the two main functional modes of the driver Maximize Video Quality and Maximize Video Throughput EaseStream For essential background on these operating modes refer to Overview Direct Mode and PostProcessing Mode in Chapter 3 of this document Please see Chapter 3 for an EaseStream overview Deinterlace inverse telecine and gamma correction are applied to all filters on the device and must have the same settings for all filters Crop logo and caption settings can be different for each pin of each filter and the driver saves settings between sessions separately for each filter ViewCast Osprey Video Capture Cards Video size color format and frame rate can also be different for each pin but it is the responsibility of the application to save these setting
9. by 36 high e 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 all 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 30 Osprey Cropping ae OSPREY VIDEO Reference image Width 640 NTSC Square Height 480 Cropping parameters X 46 e Y 38 Enable Width 520 Height 342 vwd gt eig Default Output Size BREAKING NEWS i AOYTING BEDOGTEN AT CACE Wi
10. 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 as 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 e CC Decoder e NABTS FEC VBI Codec e 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
11. 1 Device Size About C pthsbmp Osprey Bird light gray bmp Top 7 Height 53 Enable Left 7 Width 100 Drag logo to move Drag logo edges to resize ViewCast Osprey Video Capture Cards mx 192 Red 192 Green 132 Blue C Translucent 31 ViewCast Osprey Video Capture Cards C SwiftCap is a video capture application that is included with the Osprey AVStream package It is included in source form in the Osprey AVStream SDK SwiftCap is useful for general purpose capture and viewing of video as well as for testing the installation The following instructions take you through some basic scenarios for using this application Click the Preview button for a quick basic test of your video setup or for basic video viewing If you do not see motion video right away make sure The correct device is selected An input to that device with a live video feed is selected The right NTSC PAL or SECAM video standard is set The descriptions below include instructions to correct these items if necessary The steps below will also show how to adjust the size of the video display SwiftCap has many possible scenarios and pathways The following steps illustrate a few of the most useful possibilities 1 Click the Tools button to open the capture settings dialog 2 Set up the dialog as shown below The numbers and circles show the suggested order of setup a First decide whether you want to captur
12. 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 s s so so se sn sa so so sa su se so so so su so sn on ss su so sn on so sn so sn on so 00000000000000000000000 CCChannels displays closed caption and XDS vchip data Check the CC1 box to open a window displaying 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 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 cc1 txt text1 txt f1raw 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 Ifa channel supports XDS atall 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 mai
13. a SHOOTING REPORTED AT CASE S mif Width 372 Height 244 WESTERI NEAR CLEVELAND NIBC 3 DOW 113 38 Granularity Color Format RGB 24 v 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 We are finding that the default I420 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 it is turned on asa separate step CropApp requires that the filter OverlayRect ax be present on the system The driver setup program installs this filter A LogoApp allows you to interactively position and resize alogo on live video The functionality is similar to that of the driver s Logo property page but you can place and size the logo by dragging
14. a capture stream to be connected as well as the preview stream It is optional in this particular graph however the normal graph building process usually inserts a SmartTee automatically MR Inputa VMR7 Input Capture XForm In XForm Out omar Jan iz DV Video Decoder This graph renders both audio and video The Capture Filter s DV A V Out pin is used instead of the video only pin A DV Splitter is added to the graph to split the interleaved A V stream into separate audio and video The audio stream is standard PCM audio which can be directly rendered by a standard rendering filter The video stream is in dvsd format and as before is converted to YUY2 by the DV Video Decoder before rendering B 4 r Input Capture Input DvvidOutO XForm In XForm Out Input r Smart Teeri 7 Dv splitter DV Video Decoder Video Renderer Audio Input pin rendered Audio Renderer 9 This graph combines video capture with video preview rendering Here the Smart Tee becomes mandatory to split the single video stream into two in cap1 avi gt Form In XForm Out VMR Input DV Video Decoder VMR7 Audio and video capture with preview This is the most complex graph that SwiftCap currently supports It is a combination of elements described in the previous graphs p Input Input 01 AVI m in Input ES Sinani Es n EIU cap1 avi Video Renderer gt Input DY VidOutd pa XForm In XForm Out DV Se DY V
15. be different for each pin of each filter and the driver maintains separate settings for each filter and pin e 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 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 211 Video SVideo In 12 Video SerialDigit O Video Composite In O Video Decoder Out Osprey 300 Crossbar 1 al In Input Video Renderer L DJ 3 Video 1394 In Video Renderer is the oldest and simplest DirectShow renderer It it does not use DirectDraw in the rendering process which makes 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 unnece
16. complete general reference section on SwiftCap that is oriented towards its support of the Osprey analog driver Note only more recent versions of SwiftCap work with DV devices The Help About SwiftCap message should show a version number 3 1 1 0 or later and be copyrighted 2004 or later The SwiftCap version supplied with the Osprey 300 driver package is 3 1 1 0 The main features of SwiftCap s DV support are highlighted in the following figure mu Osprey SwiftCap File Settings Capture View Tools Help Hdeme sm Capture Settings Video Device Microsoft DV Camera and YCA DV video size control affects on screen rendering only D vsd capture to avi file is always CCIR full E i Ea Audio Device Microsoft D Camera and V CR w Capture O Video Audio Both Format DV audio is available only when the DV device is selected for video as well Preview DV Audio If a device such as a DV camcorder is connected to the Osprey 300 it will appear in the video device list as a Microsoft DV Camera and VCR The Capture Settings dialog will appear as shown only when a DV device is selected for analog SwiftCap devices the dialog is set up differently Note that even though a DVCam is an audio video device DirectShow classifies and enumerates it as a video device only SwiftCap adheres to this logic by displaying a DVCam as a video device choice but not as an audio device choice If you
17. e AVI AVI Decompressor e 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 VMR7is 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 display 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 21 Video Capture Cards ViewCast Osprey Direct PostProc PostProc Mode Rendering Pathway w o Deilace w Deilace Video Renderer RGB15 gt VR 5 13 16 RGB32
18. format instead of an RGB format and a packed format instead of a planar format e f you have a choice of PCs for video capture try using another system with a different system board chipset Appendix A 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 The Osprey 530 540 560 cards cannot eliminate these video artifacts These artifacts will only be present when you are using a copy protected source such as a high quality DVD for testing a card 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 are other forms of copy protection and that they may have different effects on the picture C C A The Osprey 530 540 560 is capable of decoding closed captions on NTSC video inputs This feature is supported on SDI and analog video sources the composite and S video inputs and digital SDI only It is not supported on the DV input on 540 560 cards C B A If you have a sound card installed you should be able to hear audio wh
19. frames per second The aspect ratio from DVCams is always CCIR 601 meaning that the pixel width is 720 B 3 ViewCast Osprey Video Capture Cards This section contains more technical information that may give some users helpful insight into DV capture and rendering operations The illustrations are DirectShow graphs as displayed by GraphEdit For still more advanced information refer to the DirectX 9 SDK documentation available from Microsoft This graph shows the simplest possible video only DV capture graph capl avi This is the simplest possible audio video DV capture graph The difference is that the DV Capture Filter s A V Out pin is used which delivers an interleaved A V stream rather than a pure video stream The AVI file will be Type 1 that is the audio video will be structured as a single stream this format is efficient but is DirectShow only not backwards compatible to Video for Windows Input Q1 AT Out Avy hi input 02 capi avi This is the simplest possible audio video Type 2 graph The AVI file now Video for Windows compatible is now structured as an auds stream plus a vids stream The DV Splitter Filter splits the interleaved A V stream in to a dvsd video stream plus a PCM audio stream cap1 avi This graph shows basic video only rendering The DV Video Decoder converts the dvsd DV video stream to the YUY2 format required by the video renderer The Smart Tee allows
20. if you are capturing in YVU9 format crop width must divide evenly by 16 and crop height must T 1 2 50 PM ET ON MSNBC divide evenly by EET 4 Setting the sizing grid to 16x4 ensures that your crop settings will be correct for the capture format The text line below the drop list shows which color formats your selected granularity applies to f Click Refresh to update the image from the video source g Save As and Load allow you to save multiple crop specifications for future reference Note that there are minimum values for crop size and output size SwiftCap will reject smaller values Also you cannot specify an output size that is larger than the crop size C 1 Logo setup SwiftCap has the menu item Settings gt Logo Settings This selection directly accesses the driver s logo property page for details refer to the driver properties description There is also a Settings gt Logo Enable control to directly turn the logo on or off 2 Accessing driver properties Click the circuit board icon on the toolbar NOTE If you use the driver s Size and Crop or Logo property pages you will not have the option of saving different settings for capture and preview The Pin Select radio buttons will be greyed out and forced to the Both position 3 CPU meter Turn on via the menu item View CPU Meter 4 Load and save configuration These two buttons enable you to save SwiftCap settings fo
21. limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against 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 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 C Connections between this device and peripherals must be made using shielded cables in order to maintain compliance with FCC radio emission limits Modifications to this device not approved by View Cast Corporation could void the authority granted to the user by the FCC to operate the device CA 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
22. option Preview Pin Capture Pin The purpose of Direct Mode is to capture and or preview video with very low CPU overhead Itis meant for low capability machines and for other cases where it is imperative for the driver to use as little CPU as possible Scaling cropping and color conversion are done in hardware incurring no processing overhead but at the cost of reduced flexibility The drawing shows a graph of Direct Mode processing the drawing is mainly interesting as a comparison point for the PostProcessing Mode drawing in the next section In Direct Mode each device has one video capture pin and one video preview pin Video can be cropped and scaled and the crop and scale specifications can be different for two pins In Direct Mode the driver does not apply deinterlacing gamma correction logos or on video captioning There is no SimulStream in Direct Mode if SimulStream is turned on the Direct Mode control is deselected and disabled In direct mode the driver is somewhat restricted in the combinations of capture and preview video that it can produce at the same time If the capture pin alone is used or the preview pin alone is used the driver can produce video in any size and rate If both the capture and preview pins are used the limitations to video size and rate are as follows The capture stream is preemptive over the preview stream in accordance with Microsoft recommendations for video capture drive
23. positions corresponding to six 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 the control may be non linear in its action That is some steps may result in slight differences while other steps may result in large differences The specific filters engaged by each step may differ from input to input This is especially true on the Osprey 530 540 560 when switching between analog and digital inputs So if you use different inputs on the Osprey 530 540 560 you may want to adjust each input individually If the video source is capable of being paused the effects of different sharpness settings are most easily seen by pausing the video Please note that because this is a DirectShow standard dialog this dialog includes features that are not implemented on the Osprey cards and are therefore greyed out The Osprey 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 The Osprey driver does have a Gamma control but it is located on the Filters property page Forall of the Video Proc Amp controls the driver maintains one set of settings per Osprey device It does not maintain individual settings for each input or type of input Changes made on this page
24. 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 i e the crop rectangle and thus any captured video that is greater than the field height within the crop rectangle equal to 72 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 Output Size v Auo Size O1 Owe Os 520 240 The standard DirectShow Pin Properties dialog allows you to select the height and width of captured video from a dropdown list 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 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 e Example 1 If you are running standard 640x480 NTSC video and the Enable Cropping checkbox is not checked your crop size is 640x480 With Auto Size checked and
25. 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 Tweeks 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 2 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 is 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 as it becomes aware that telecine sync has been lost However it may take it several fr
26. this device not approved by ViewCast Corporation could void the authority granted to the user by the FCC to operate the device The Osprey Video Capture devices described in this guide except the Osprey 300 and the Osprey 530 have 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 is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver 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 dealer or manufacturer of your radio or television receiver or speak with an experienced radio TV technician The Osprey 300 and Osprey 530 Video Capture devices described have been found to comply with the
27. 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 B gt 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 C Currently Using paegogag Cine Phase Inverse Telecine Motion Adaptive VE These indicators show which algorithm is currently being used 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 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 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 gr
28. want to capture both audio and video from a DVCam you should select Video in the Capture group at the right If you want to capture DV video and audio from another analog source select Capture Both and uncheck Capture DV Audio You can even work to capture both DV audio and analog audio at the same time If you select Preview DV Audio SwiftCap will preview audio both in preview only mode and when capture is happening SwiftCap does not preview audio with analog capture devices This capability could be useful when capturing audio from a remote or recorded source but you will want to turn it off for capture from a live source to avoid feedback Two checkboxes in the Video group Capture DV Audio and Preview DV Audio control DV audio Video Capture Cards a W The video Size control affects size of previewed video only not captured video As previously explained dvsd video from the DV Video Capture Filter is always full sized and in CCIR 601 format that is 720x480 NTSC or 720x576 PAL SECAM While a DV Video Decoder Filter could be used to downsize the video SwiftCap does not currently support this SwiftCap also does not support compression of DV video at this time As you can see the rest of the Video Format controls are greyed and read only The video format from a DVCam is always dvsd as described above SwiftCap will determine for you whether the camera is NTSC and 30 frames per second or PAL and 25
29. which captures video into many user selectable sizes and formats the DV capture filter delivers just one format for each video standard For 525 line NTSC video the video size is 720x480 and the video rate is 29 97 frames per second For 625 line PAL SECAM video the video size is 720x576 and the video rate is 25 frames per second The video format is always a compressed format designated with the four character identifier dvsd case sensitive and lower case In this format one NTSC video frame is 120 000 bytes and one PAL SECAM video frame is 144 000 bytes By comparison one uncompressed YUY2 NTSC frame requiring 2 bytes per pixel is 691 200 bytes and one uncompressed YUY2 half sized frame 360x240 is 172 800 bytes that is to say the half sized YUY2 frame is significantly larger than the full sized dvsd frame The dvsd format comes in two flavors video only and audio video interleaved The audio video data rate is slightly higher than the 120 000 or 144 000 bytes per frame quoted above for NTSC it is about 129 000 bytes per frame or about 3 866 130 bytes per second The dvsd format can be captured directly to AVI files There are two subformats Type 1 and Type 2 The Type 1 format stores the audio video data as a single stream The Type 2 format stores the audio and video data as two separate streams The Type 1 format is more compact and efficient but is not backward compatible with Video for Windows Osp
30. 4 Click Finish The Digital Signature Not Found window displays This window displays once for each Osprey board you are installing The Systems Setting Change window displays 6 Click Finish to restart the computer lane ViewCast Ospre Video Capture Cards P y Chapter A C C After you have installed your Osprey Card and the AVStream driver you will be able to access the properties for your card through most major DirectShow applications such as Windows Media Encoder or RealProducer9 For detailed information on how to select your Video Properties Properties Osprey Card and access its Video Properties window from 3 party applications please refer to the documentation for your encoding application Wideo Input C Composite Video Present The Properties are organized as tabs or pages in a dialog box entitled Video Capture Properties The tabs are as follows Video Standard e Video Proc Amp set brightness contrast saturation hue and sharpness NTSC 625 Lines 50 Hz e Video Decoder select the video standard NTSC PAL SECAM e Input select the video input and NTSC PAL SECAM Input Format video standard e Filters SimulStream processing mode gamma deinterlace and detelecine e Device various less frequently used controls e RefSize set the reference size for cropping Progressive scan DVCam digital transfer e Size and Crop set default size enable cropping set the
31. 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 ASCII file Is also delivers XDS Vchip and other ancillary data in raw form The applet named CCChannels exe that is included with the driver release demos these capabilities 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 red captions Since standard colored captions are so little used this characteristic has little practical effect Render Logical White As E NEM 00000000 CC 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 C This dialog is the default DirectShow way for obtaining a user s settings for the output format of captured video Changes made in this dialog apply to the currently selected pin only The settings fo
32. It is determined by settings made on other tabs specifically the Input tab where a 525 line or 625 line standard is selected and the 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 0 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 12 A Osprey products impose restrictions on the possible width and or height of the video referred to as granularity restrictions For example the 1420 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 0 0 driver are changed from the 3 X X driver versions They are as follows Granularity Alignment Format Horizontal Vertical Horizontal Vertical YUY2 UYUV 1420 YVUS RGB555 RGB24 RGB32 Greyscale none any AA BR
33. MEN cropping rectangle SLI 456 ine mode e Logo set up on video logos e Captions set up on video caption rendering e Capture and Preview Pin Properties the default DirectShow pin controls Reverse field order D v Cam analog transfer Bypass Color Correction In some applications you may see additional tabs besides those listed above The additional tabs are system supplied for your information only and contain no controls that you can set Please note that these property tabs are not where you set frame size and frame rate These are part of the pin properties and are explained in Pin Properties below Some controls are interactive changes you make are immediately updated on the video Examples are the brightness contrast hue saturation and sharpness controls the graphical gamma control and the graphical sizing and positioning controls for logos The OK Cancel and Apply buttons have no effect on these controls It is also important to note that the OK and Apply buttons commit only the changes on the currently displayed page ViewCast Osprey Video Capture Cards C y C C Some controls operate on the device as a whole while other controls operate on individual filters and pins Specifically controls on the following tabs are per device A change to any of the following controls affects all pins and filters on the device Video Proc Amp Video Decoder Input Filters Device R
34. N N NN N NN NN NIN SS NSN ZAZ The Granularity controls show you the granularity restrictions for the selected video format and assist 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 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 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 16x2 requirement The granularity 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 Appl
35. 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 CC 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 The driver supports an Osprey custom property which provides the closed caption character stream for use by custom applications The Osprey filter named CCLinelnterp 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 0 0 for a description of this interface for developers Both the filter and the applet are provided in source code form in the SDK 24 C Vertical Interval Timecode VITC data is embedded in the Vertical Blanking Intervals VBls 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 show
36. VIA SYS The change will take effect as soon as you click Apply or OK This button display useful information about the capture card and the driver including e The DirectShow name of the device e The device and filter number 10 The PCI bus and slot numbers of the device The device type code The serial number of the device On Windows XP x64 whether the application is 32 bit or 64 bit The versions of the kernel driver and user mode DLL AX e The versions of the interfaces between the kernel driver and user mode DLL e The file name of the kernel driver binary Extras 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 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 section on page 31 of this guide for more information e 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 become extremely large and the capture will fail within a few seconds AVI Compatible mode allows capture of CC to AVI U
37. 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 25 ViewCast Osprey Video Capture Cards Pl mur B Chapter A Setup and control for audio are much simpler than for video The basic steps are covered in the following topics A Adjust Audio 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 de for getting to the mixer source and volume control dialog box BRE Properties Mie device Dapiep300 Au Div Adjust volume for ie Recording Control Options Help Recording Balance Open Yolume Control Unbalanced Balance XLR Balanced Balance b 9 4 Volume LJ C Select XLR AES EBU Balance Y 4 Volume T C Select Wok SDI DY 1394 Balance Balance p 4 9 4 Volume Volume T i nuu a 1 The easiest method for accessing this interface is to right e e ore 4 P Z 4 click the speaker symbol on your taskbar typically on the RTS Volume Volume bottom right hand side of your screen Then select the Open ER Volume C
38. a ViewCast Ospre Video Capture Cards P y ViewCast CORPORATION N View Cast CQR PORATION Osprey User Guide AVStream Driver Version 4 0 ViewCast Corporation 3701 W Plano Parkway Suite 300 Plano TX 75075 7840 USA Revised 04 26 2007 2007 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 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 UL CC C 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
39. ames 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 pulldown 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 A i ViewCast Osprey Video Capture Cards C Gamma Correction 1 70 el This control adjusts the gamma of the incoming video Gamma refers to the response curve of video cameras and CRTs When video is captured at a camera the response of the camera is deliberately nonlinear low lumen values are boosted and high lumen values are compressed This is done for two reasons 1 It increases the effective bandwidth in the low lumen range where it is needed at the expense of the high lum
40. ancing between processors will occur naturally On a few machines however it has been noticed that Windows will run all Osprey devices on one processor resulting in unbalanced loading and reduced performance The upper button in the control group sets the usual default case whereby Windows if free to assign any device to any processor The lower button is for those few cases where the default setup does not work right It causes each Osprey device to be hardwired to a specific processor device 0 to processor 0 device 1 to processor 1 The assignment is round robin so if there are four Ospreys on a two processor machine device 2 will be assigned to processor 0 and device 3 to processor 1 Changes made to this control will take effect when you restart the machine If you have mixed classes of Osprey devices for example an Osprey 230 in the same machine as an Osprey 560 overriding the default of this control is not recommended The two device types run under different drivers and both drivers will consider their device to be device 0 and both will assign it to processor 0 CC Some PCI bridges present compatibility problems for the Osprey hardware especially systems using the 430FX chipset The symptom will be dropping of a significant amount of audio and or video data Use the Normal setting unless you are seeing this symptom but if you are seeing it try setting this control to 430FX or possibly to
41. andard 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 Pin Select Reference Size Granularity Enable Cropping Default Size When the Both radio button is 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 Note The Osprey SwiftCap capture application greys out the Pin Select choices and forces the Both selection This application expects the Size and Crop settings for Capture and Preview to be locked together Some other Osprey applications may do this by intention as well The reference size information is always read only on this dialog tab
42. apply to all video preview and capture pins on the currently selected device When you change the video standard or video input you 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 530 540 560 When a digital video SDI or DV input is selected the Hue adjustment does not function and will be disabled When a digital video input is selected and the checkbox Bypass Color Correction on the Input tab is checked all four of the Brightness Contrast Hue and Saturation sliders are disabled When a digital input SDI or DV 1394 is selected the analog controls are greyed and three controls relevant to digital inputs are enabled On the Osprey 530 540 560 the driver cannot decode Closed Captions when brightness or contrast are set at extreme values This will only be a problem when they are set to such extremes that normal video will not be viewable The VideoDecoder Tab is a DirectShow standard control for setting the NTSC PAL SECAM video standard Note that these controls are also on the Input Tab Most users will find the Input Tab more convenient to use Changes apply to all video preview and capture pins on the currently selected device If you have multiple Osprey cards set the input individually for each of them Changes made with this control take effect immediately the Apply button really has no function on this
43. at 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 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 29 ViewCast Osprey Video Capture Cards C A 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 e f multiple Osprey devices are in the system you can select the device of interest from the dropdown list at the top of the control grou
44. ation 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 by 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 1420 format used by Osprey the order of the U and V arrays is reversed from the order in the YVU9 format C C CC The Osprey AVStream driver
45. by default If the main menu does not automatically appear see Manually Accessing the CD Menu In the CD main menu select your Osprey card from the list The Osprey AVStream InstallShield Wizard will appear This Installation Wizard will guide you through the following installation process 1 Click Next 2 A Click the radio button next to I accept the terms in the license agreement and click next 3 C Enter your name and the name of your organization if any choose whether you want to install the software for all users and click Next 4 Select a default video standard for the AVStream driver and click Next For more information on video standards see Video Standards and Sizes on page 29 of this guide 5 Select Complete or Custom installation and click Next If you select Custom installation please see Custom Installing the AVStream Software on the following page for more information 6 Click Install 7 A This window will show the progress of the installation If during the installation a warning window appears regarding Windows Logo Testing click Continue Anyway to proceed with the installation 8 C Click Finish ViewCast Osprey Video Capture Cards C A If during step 5 of the installation process you choose a Custom installation you will see the following window Feature Description ie Osprey A Stream InstallShield Wizard
46. cChannels ix Osprey capture filter Osprey 300 Analog Video 1 w bo 00 02 536 Channel Network Name KA 100 00 02 636 Current Content Advisory USTY Tv G Field Field 00 00 02 736 Channel Call Letters and Native Channel Ix 100 00 02 836 Channel Network Name I A joo 00 02 936 current Content Advisory UST Tv G 100 00 03 036 Channe1 Call Letters and Native Channel 55 100 00 03 136 Channe1 Network Name I CC1 Dl CC 3 joo 00 03 236 current Content Advisory USTV Tv G 100 00 03 337 Channel Call Letters and Native Channel p e CC 4 00 Name os 00 0 f raw txt Advisory USTV TV G lao ters and Native Channel Teti O O Te43 joo Name aa Advisory usTv TV G Tex2 O O Tex4 00 ters and Native Channel fo M 00 Name pi A XDS oo Advisory USTV Tv G 00 ters and Native Channel i 3 loo Name E lao Advisory USTY Tv G Raw 1 O Raw2 ters and Name cc1 txt Advisory ters and Name Advisory ters and Name Advisory 00 00 00 000 ters and 00 00 01 368 Name 00 00 01 902 Advisory 00 00 03 170 C 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 DIDN 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
47. customers who are familiar with the Osprey 500 540 560 should understand that the DV implementation is completely different On the Osprey 500 540 560 cards the DV connector and capture hardware sit behind the Osprey audio and video capture devices and are controlled by the Osprey driver On the Osprey 300 the DV is an entirely independent device If you look at the Windows XP Device Manager after installing an Osprey 300 you will see something like this Under the category IEEE 1394 Bus host controllers there will be an entry for the Texas Instruments controller on the Osprey 300 This device is automatically activated whenever the card is plugged into the system If you plug a DVCam into the Osprey card an entry for it will appear under the Imaging devices heading Both the 1394 controller and any devices plugged into it are logically distinct from the Osprey 300 analog audio and video devices shown under Sound video and game controllers In theory you should be able to connect any 1394 device to the card not just a digital video DV source In this chapter however we focus on using the 1394 connector with DV devices such as camcorders Most major multimedia applications will recognize DV devices and work with them fully For example we have verified that Windows Media Encoder 9 supports a DVCam attached to an Osprey 300 With major applications the DV connection should just work and the information here is for backgrou
48. d in a 2x2 square shares two bytes of chrominance data See YUV Format Details YVUO 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 5 525 RGBS 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 by the driver The Osprey driver sets the color palette to greyscale entries and captures Y8 luminance only data C 3 A YUY2 UYVY YVU9 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 inform
49. dition to showing the transfer function as a red curve shows the visual effect via the two greyscale bands on the adjustment square The lower third of the square shows a nonvarying linear adjustment range The upper two thirds shows the greyscale mapping of the current setting When the setting is 1 00 the two portions are identical Gamma correction is enabled only when Postprocessing Mode is selected ViewCast Osprey Video Capture Cards Gamma correction applies to all filters and all output pins on each device The gamma correction can be different for different physical devices These controls 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 PCI Compatibility Mode Processor Assignment Device Info Extras A This control is relevant only on machines with two or more processors and with two or more Osprey devices of a particular class Osprey 2XX 300 440 530 540 560 installed On single processor machines this control is greyed Normally when a machine has multiple processors and multiple Osprey devices best performance is achieved by letting the Windows dispatcher assign devices to processors dynamically The processing for a device will generally end up on the first processor to become idle and load bal
50. e Osprey 530 540 560 controls for analog inputs are the same as for the analog cards as described above ViewCast Osprey Video Capture Cards This control affects capture of video from a digital camera routed usually through the Osprey card s DV input 540 and 560 only In normal video including many digital cameras field 1 containing lines 1 3 5 of the video is transmitted in its entirety followed by field 2 containing lines 2 4 6 The capture card interleaves the two fields together and the progressive scan setting should be turned off A digital camera however may transfer data in progressive mode meaning that the data is transferred as a single field of lines 1 2 3 4 5 You will know that you need to use the Progressive Scan setting if the video displays as two separate half height fields one on top of the other 486 This control is important and will be needed with many NTSC SDI setups The NTSC standard provides 485 lines of video The lines appear to a video capture devices as interleaved from two fields with 243 lines from field 1 and 242 lines from field 2 SDI sources may add a 486th line which will be line 283 at the top of the above list before line 21 This reverses the apparent field order as seen by the Osprey 530 540 560 and alters the lines on which captioning data will appear C 486 1 If you do not see closed captions with CC1 enabled or see spurious incorrect captions 2 If you do
51. e and preview pins This is the default setting 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 The Preview button works analogously The Osprey SwiftCap capture application greys out the Pin Select choices and forces the Both selection This application expects the Size and Crop settings for Capture and Preview to be locked together Some other Osprey applications may do this by intention as well CC C Render NTSC Closed Captions On Video CC Channel 3 CC 1 O Text 1 hoc 0 Text 2 cca O Text 3 jcc 4 CJ Text 4 The 4 0 0 driver can internally render closed captions on video when NTSC video is selected on the input 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 0 0 driver has two additional ways of delivering captions 16 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
52. e it is greyed and the control has no effect When a composite input line is selected and a monochrome device is attached this checkbox should be checked the result will be a sharper image as shown in the notch kill item of the image pair below If a device that has color capability is used this checkbox should be unchecked or else the image will be textured and unstable Note this control is only for true monochrome devices without color capability For example if you are looking at a DVD of a black and white film this checkbox should not be checked because a DVD player has color capability If this control is checked with a color source the image will appear shimmering and unstable This control might be useful if you are capturing video from a digital camera and 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 video footage that originated on film may have a different field dominance that requires pairing of even odd fields into frames If you notice that there are problems with interlaced video such as comb effects where alternate lines are reversed the Reverse Field Order setting might clear up the problem 530 540 560 Input Format Ei composite camera Reverse field order DY Cam analog transter Progressive scan D Cam digital transfer SLI 48b line made Bypass Color Correction Th
53. e video only audio only or both unselected controls will be disabled the following assumes you have selected Both b Select your video device and source Select No Compression c In the Video Format group uncheck Use Driver s Default d Select the video standard color format frame rate and video size you want to se e Select your audio device and source Select No Compression f In the Audio Format group check Use Default for this experiment g OK 3 Next click the Destination button to open the Capture Destination dialog 4 In the Destination dialog set the items marked in red a In the video section select Renderer b Select VMR7 Renderer Note that there is a discussion of renderers in the Video Capture Topics chapter c In the audio section select Renderer d Select your sound card as the rendering device e OK 5 Click the Capture or Start button An Active Movie video window will open on your screen and your will hear audio from the capture source until you click Stop 32 4 Osprey Swift Cap File Settings Capture View Tools Help HEZBOLLAH REACTION DOW Capture Settings Video Format E Deea at Ospr j 220 Video Device 1 iz Source Composite v Audio Device 220 amp udio Device 1 Source Unbalanced v Compression No Compression Format Sample Rate 44 1 khz Channels Bits Capture Destina
54. ed 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 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 B The Recalc button recalculates the 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 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 ca
55. een 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 phase 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 Use the tweek dialog to adjust the parameters that control motion adaptive deinterlacing When the driver is using the Inverse Telecine algorithm either in Telecine mode or Auto mode the Tweek settings have no effect at all and Test Mode is inoperative 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 accordi
56. efSize Controls on the following tabs are per filter and per pin Changes here affect only the filter or pin specified e Crop e Logo e Captions For more information on filters and pins please see Overview of Filters Pins and Properties in Chapter 3 of this guide At the top of these three tabs is a control group named Pin Select The three buttons in this group determine whether changes you make will select both the capture and preview pin associated with the filter or just the pin preview or capture that you have selected Fin Select Capture Preview Both When the Both radio button is selected changes you make to the setup apply to both the capture and preview pins If you like however you can have different setups for the two pins For example you could enable a feature on the capture pin but not on the preview pin 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 the same way Please note that the Osprey SwiftCap capture application greys out the Pin Select choices and forces the Both selection This application expects settings for Capture and Preview to be locked together Some other Osprey applications may do this by intention as well The DirectShow Pin Properties that applications may display for Capture and P
57. ely 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 Note that the SimulStream Eval logo is a special case it is restricted to the range 128 255 so that it cannot be made completely transparent A i ViewCast Osprey Video Capture Cards The Logo Position and Size sub page 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 page 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 page 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 pr
58. em is restarted A ViewCast Osprey Video Capture Cards while it is possible to expose and enumerate up to 10 filters per device the practical number of working filters will be less than this The practical number of filters depends on the capability of the system the types of filtering turned on in the driver the types of scaling and color format conversions requested in the driver and the type of processing being done by the downstream application 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 times 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 20r 3 if the processing load inside or outside of the driver is particular heavy A This control enables you to run multiple instances on one device of applications that do not have device select controls It is recommended that you leave this turned off unless you have a specific need for it Turning it on will affect some of the above description Specifically crop logo
59. en range where it is less needed 2 it matches the response characteristics of TV sets and monitors The calibration specified in video standards matches the requirements of cameras and TV sets in broadcast use but generally does not match the needs of computer based applications or the response curves of computer monitors So a correction inverse to the original bias is often needed and you may want to tune for the characteristics of a particular monitor When the gamma correction filters is disabled either by unchecking the Gamma Correction checkbox or by setting the gamma correction value to exactly 1 00 the software based gamma filter works in passthrough mode with no effect on the video and with no processing bandwidth used When gamma correction is enabled the factor applied is as shown in text box and in the graphic If you are running preview video while adjusting the filter you will see the effects of your adjustments interactively There are four ways to adjust the gamma correction value 1 By directly entering text in the numeric text box 2 By clicking the and buttons 3 By dragging the mouse with the left button down between the upper left and lower right 4 By clicking the button marked 2 20 NTSC or 2 80 PAL SECAM These values are the inverses of the gamma bias that was applied at the video source according to the video standard so that the resulting video is gamma neutral The graphic in ad
60. en you play back recorded audio e Verify that the volume control for your playback device is not muted e Verify that the selected playback device is your sound card and not the Osprey 540 560 Placeholder device The Placeholder device exists in order to handle the situation where there is an Osprey 540 560 present without a 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 1 ViewCast Osprey Video Capture Cards A When the audio input is on 540 560 cards DV1394 you have to use the AudioConfig applet s Preferred Audio Sample Rate control to match your audio sample rate to the actual rate of the incoming data The two most common formats are 48 kHz 16 bit and 32 kHz 12 bit You may have to listen to a sample of your captured audio to determine whether the sample rate is set correctly if the pitch is incorrect try the other setting A C C 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 t
61. eo 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 the image so that the black edges are of egual width 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 Postprocessing Mode this operation is often more efficient in terms of processing than a crop operation The crop and scale are done in hardware so if you are using the resultant 640x480 image directly without further cropping there is no scale crop processing cost incurred 11 ViewCast Osprey Video Capture Cards C This tab has two functions e tsets the default output size whether or not cropping is enabled e t enables and disables cropping and sets the cropping rectangle The default output size is the video size that appears in the DirectShow pin properties dialog as the default choice It is a pathway for setting a custom or nonst
62. epare artwork of the exact size at which it will be used Video Preprrikos Properties wes Wiesferisp Votes Made Flot m em m Pe select Cake Meet bah CRETE ET Eng lati 15 ViewCast Osprey Video Capture Cards 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 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 Ifyousetupalogo 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 importa logo prescaled to the new desired size to ensure the best image quality C 530 540 560 With these products the driver cannot decode captions when video brilllghtness or contrast are setat extreme values This will only be a problem when they are set to such extremes that normal video will not be viewable CC When the Both radio button is selected changes you make to the captioning setup apply to both the captur
63. er this rather than just select an input for the new session The only way to do that is to try all the inputs listed in the select box until you find the one for which Enable is checked This property page makes more sense if you understand that it is designed to allow mixing of audio inputs for devices that support that Osprey audio capture filters do not support mixing of inputs you have to select one stereo input at time so the DirectShow design is not very convenient in our case ViewCast Osprey Video Capture Cards A 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 e 8kHz 11 025 kHz 16 kHz 22 05 kHz 32 kHz 44 1 kHz 48 kHz A Osprey cards provides audio capture only not audio playback Continue to play back captured audio using your system soundcard A C The AudioConfig 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 7 AudioConfig File Help Device Osprey 560 Audio Device 1 Preferred Audio Sample Rate _ Any S upported Rate A
64. gt VR 2 10 13 YUY2 gt AVI gt VR 11 12 13 YUY2 gt OVL gt VR 11 18 20 VMR7 RGB32 gt VMR7 4 25 26 YUY2 gt VMR7 1 8 10 VMR9 YUY2 gt VMR9 6 13 15 Direct PostProc PostProc Mode Rendering Pathway w o Deilace w Deilace Video Renderer RGB15 gt VR 44 RGB32 gt VR 27 44 YUY2 gt AVI gt VR 25 49 YUY2 gt OVL gt VR 19 55 VMR7 RGB32 gt VMR7 YUY2 gt VMR7 VMR9 YUY2 gt VMR9 9 52 50 56 62 44 54 61 39 43 lt 1 lt 1 47 52 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 l many countries in Europe and elsewhere B D G H and refer to five nearly identical subformats Full sized NTSC M and NTSC J have 525 lines total 480 lines visible 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 625 lines total 576 lines visible per frame and a display rate of 50 fields per sec
65. h an Osprey 230 and an Osprey 560 in the same machine then you have to install a separate driver for each board When you add or move boards after the AVStream 4 0 0 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 230 in the machine with the current driver installed and you want to add an Osprey 560 For this case you have to obtain and install the driver install package for the new board 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 230 in the machine and want to add another Osprey 230 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 1 Click Continue Anyway This window will only be displayed on drivers that have not been WHQL Certified WHQL Certified drivers will skip this step 2 The Controller installing window not shown 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 This window will only be displayed on drivers that have not been WHQL Certified WHQL Certified drivers will skip this step The Completing the Found New Hardware window displays
66. he 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 it is not You have to manually enter Recording Control s Options Properties dialog to select your device If you no longer have need for the Video for Windows driver you can uninstall it using instructions obtainable 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 and delete all REG SZ entries named mixer or mixer1 mixer9 that have the name of an Osprey mixer as their data These names will be 02ca mix dll o5ca mix dll or 0540 mix dll 2 40 03237 01
67. ications to DirectShow drivers presents several problems that are beyond the control of driver implementers The following comments are derived from tests with VidCap32 but should apply by and large for other Video for Windows applications as well 1 Overlay video in DirectShow this is called preview video always runs when VidCap32 is loaded even if overlay video is turned off Jd Lem EE 2 There is no way to set the size of overlay video from the application It is sized to the default size that is set for the DirectShow preview pin by a DirectShow application such as AMCap or GraphEdit The size setting in the Video Format dialog shown above has no effect on the size of overlay video Video Format If overlay video is sized to 640x480 because that is the DirectShow Stream Settings default setting and the capture video is sized by VidCap32 to Ductal mane Font 160x120 then overlay will be captured at 640x480 and scaled down See Pixel Depth Eis and Compression Size bytes 4 1 in software to the 160x120 size of the VidCap32 overlay window z 30x28 el OO a 115200 wasting substantial system bandwidth in the process AGE 555 16 bit YUY2 On the other hand if overlay video is sized to 160x120 because that is the DirectShow default setting and the capture video is sized by VidCap32 to 640x480 then overlay will be captured at 160x120 and scaled up 1 4 in software to the 640x480 size of the VidCap32 over
68. ideo Decoder Capture Input 01 AVI Out Smart Tee AviMux Preview gt Input 02 Audio Input pin rendered Audio Renderer f This graph which SwiftCap currently does not support shows an A V capture only configuration to which a DV Video Decoder Filter has been added The properties page also shown at left belongs to the DV Video Decoder and can be accessed directly from GraphEdit and some other applications This graph captures the video stream in YUY2 format As explained previously the dvsd native DV format is acompressed format whereas YUY2 is not A YUY2 stream at 720x480 is much larger than the dvsd version and the YUY2 stream at 360x240 is somewhat larger you would probably want to use this graph only for 1 4 or 1 8 size capture r Input DvvidOuta L XForm In XForm Out a Dv Zn DY Wideo Decoder put U This graph shows audio video capture with the Microsoft Video 1 compressor The compressor requires YUY2 as its input format and so the DV Video Decoder precedes it A compressed graph of this kind substantially compresses the AVI data at the expense of CPU time and video quality clin cap1 avi cap1 avi Microsoft Video 1 VED Video for Windows applications control the driver s most important functions via compatibility mode dialog boxes You cannot access the complete Osprey AVStream Filter Properties directly from these older applications The compatibility mode dialog
69. 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 transparency 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 VbiGraph is a demo of DirectShow VBI streaming VbiGraph is provided with all driver packages except the one for the Osprey 530 540 560 which does not have a functional VBI pin The current version of VbiGraph only works with the first video capture device enumerated It will detect whether 525 or 625 line video is currently playing and configure itself accordingly The controls let you display any VBI line from either video field Refer to the VBI section of the Video Driver Topics chapter for more information about VBI _LogoApp Osprey 300 Video Device
70. iver up to 25 or 29 97 frames per second in any format to the two pins 19 ViewCast Osprey Video Capture Cards 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 The EaseStream feature is a proprietary postprocessing technique ViewCast has added to the AVS driver that allows for greater data throughput on the PC bus The user has the option to choose between Maximize Video Quality or Maximize Video Throughput EaseStream Video Capture Properties Device Captions Logo Input Filters video Proc Amp Video Decoder RelSize imul tream SimulStream evaluation is installed Gamma Correction cL r d ire eri gu array 4 Miters per device Allow multiple instances of each filtar Mode Postprocessing 2 Maximize Video Quality CO Maximize Video Throughput Ease Stream C Direct Deinterlace Auto CO Inverse Telecine CO Motion Adaptive I off Currently Using Bagoago Cine Phase Inverse Telecine I Motion Adap
71. lay window resulting in a very grainy image with 4x4 cells 3 With VidCap32 video capture runs all the time even when no Cancel Apply video is being previewed or captured The reason is perhaps so that the mapper can support Video for Windows preview which is derived from the DirectShow capture stream In short 4 A Video for Windows application running over a DirectShow driver may consume 25 to 50 percent of system bandwidth even when it is doing nothing 5 If you are going to extensively use a Video for Windows application with a DirectShow driver make sure that the DirectShow preview pin s default size is correctly set As explained you have to use a native DirectShow application to do this Open the driver s filter dialog go to the Crop tab and set Default Size there Most often you would want to set the preview pin to the capture size you plan to use But if you aren t going to use Video for Windows overlay or are not concerned about its quality then set the preview pin to a very small size such as 160x120 C 2 lane ViewCast Ospre Video Capture Cards P y B The currently selected video input is not receiving an active video signal Different inputs may provide a different symptom when a video source is not supplied e DV inputs will display Magenta Osprey 540 560 only e SDI inputs will display Green e Composite and s video inputs on digital class cards will display black with a green li
72. m evaluation mode If the Enable checkbox is unchecked the text line at the top of the control group will say that SimulStream evaluation mode is installed If you check the checkbox the text will say that SimulStream evaluation mode is enabled When you change the SimulStream Enable status and click Apply or OK a message box comes up asking to restart the system It is strongly recommended that you do so If you do not SimulStream may partly work but the filters may be incorrectly named and their pins may be incorrect When SimulStream or SimulStream evaluation mode is enabled the driver always works in Postprocessing Mode as described below in the Mode control group The Mode control will be forced to Postprocessing Mode and the Direct Mode control will be disabled Show 4 filters per device With this control you can set up the driver to expose 1 to 10 filters per device for enumeration and selection by applications If for example 4 filters per device is chosen device lists in applications will show four entries for the current device For device 1 they are designated as 1 1 1 2 1 3 and 1 4 This is a global setting affecting all Osprey 2XX 300 440 or 530 540 560 devices as a group 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 syst
73. mp file format can be used e A selectable key color can be specified all parts of the logo graphic with that color are not drawn on the video e A transparency control 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 is scaled to look the same on the preview video 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 three sub pages File 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 When the Both radio button is selected changes you make to the logo setup apply to both the capture and preview pins 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
74. n 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 Video Capture Cards A i ViewCast Osprey 1 Note that 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 1420 and you try to set a crop width of 360 it will get adjusted down to 352 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 3 Versions 4 0 0 and later of the Osprey AVStream driver can upscale cropped video up to the reference size 4 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
75. n test is whether 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 ViewCast Osprey Video Capture Cards Chapter A CCChannels is a demo app for the underlying filter CCLinelnterp ax CCLinelnterp uses the Osprey proprietary CC streaming interface new to the 4 0 0 driver to obtain a stream of CC character pairs or two streams one from each field CCLinelnterp 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 CCLinelnterp 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 CCLinelnterp ax is ready to use as is if the interpretation form
76. nd and reference only ViewCast Osprey Video Capture Cards Appendix 300 E Device Manager i Ed File Action View Help Eg EA 48 EUGSxP 9 Computer Ee Disk drives DE Display adapters 24 DVD CD ROM drives H Floppy disk controllers Osprey 300 cdd Floppy disk drives 1384 Host Controller 9 IDE ATA ATAPI controllers IEEE 1394 Bus host controllers bea Texas Instruments OHCI Compliant IEEE 1394 Host Controller gt 35 Sony DY Camcorder 2 Ei keyboards E Mice and other pointing devices E Monitors m B Network adapters 157 Ports COM amp LPT SR Processors Sound video and game controllers A Audio Codecs J Crystal WDM Audio Codec b Crystal WDM Audia Control Registers b Disabled Device Legacy Audio Drivers J Legacy Video Capture Devices 9 Media Control Devices A Osprev 300 AvStream Analog Audio Device ila J Osprey 300 AvStream Analog Video Device 8 Video Codecs H System devices B Universal Serial Bus contrallers Two attached DC ams Cisprey 300 analog audio and video devices B 1 ViewCast Osprey Video Capture Cards 300 C The DirectShow filter used for DV capture is called the Microsoft DV Camera and VCR This filter can capture video only or audio and video together In this respect it is different from the Osprey analog capture driver which has logically distinct modules for audio and video capture Unlike the Osprey analog driver
77. nd their relation to SimulStream please refer to Overview of Filters Pins and Properties in Chapter 3 of this guide NOTE users of versions of the Osprey AVStream driver prior to 4 0 0 will find that the method of representing and managing multiple video capture and preview pins is greatly revised for 4 0 0 We recommend that you review the following material even if you are thoroughly familiar with 3 X X SimulStream SimulStream is a purchased software option 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 applications each with one or more capture streams For details about purchasing and installing SimulStream refer to The base AVStream driver includes an evaluation version for you to try out for free When SimulStream is installed the controls in this group affect the fully licensed SimulStream mode as opposed to the free evaluation mode When SimulStream is not installed they control evaluation mode Evaluation mode works the same as full SimulStream except that an evaluation logo is 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 B From a practical point of view Filters have two interrelated pu
78. ne e Composite and s video inputs on multimedia class cards will display blue To solve this problem check the following e Check that the camera VCR or other video source is powered and that its output is connected to the Osprey card s input e Check that the correct video input is selected in the Control Dialog s Source page 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 Large 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 This problem should only arise if you have multiple Osprey cards or 1 or more Osprey 440 operating concurrently Typical usage of a single Osprey card would not cause this kind of problem If you are having problems we recommend that you e Use a smaller frame size 480x320 or less e Use a shallower color format RGB15 or RGB24 instead of RGB32 e Try a YUV
79. nfortunately 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 WME 9 among others requires the Normal setting if CC is used Vbi Pin Osprey 530 540 560 only The Osprey 530 540 560 do not provide full Vertical Blanking Interval VBI support and do not normally expose a VBI Pin Windows Media Encoder 9 however has a Closed Captioning scripting capability that requires a workaround Although this application connects to the driver s Closed Caption Pin for delivery of actual Closed Caption data it looks for a VBI Pin in its capability enumeration phase This control directs the driver to expose a logically correct but non functioning VBI pin so that the WME9 scripting capability can be used We recommend hiding the VBI Pin for other applications since no valid VBI data will be delivered Changes to this setting only take effect when the you restart the device either with the system s Device Manager or by rebooting the system The RefSize tab controls features related to the reference size format and proportions of the video These controls are not commonly used Most users can set up this page once and never refer to itagain Note that this page does not pr
80. ng to the settings of the other tweek controls Test mode is always automatically exited when you exit the Tweek dialog 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 considered in motion The recommended default is 16 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 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 1 If your video format results in exact 2 1 or 4 1 vertical scaling for a particular pin
81. ntrols recording volume and playback volume To change record levels go to Options then Properties and select Recording 26 A 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 Osprey 560 Audio Device 1 Properties AudiolnputMixer Properties Master Input Mix Ein Line Input Mis mm Treble Bass T Bass Treble Enable L LILIT IE es Fin Line LR Balanced v 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 Apply 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 With the Osprey 530 540 560 which has multiple audio inputs further confusion arises if you forget which input you had selected in the previous session and for some reason you want to discov
82. oa il ii it ii r n anii i E iEn 3 Accessing Your Osprey Video Capture Card Properties cincia intensa aaa pa i ea a na d a d d e ta a i ea ua a 3 The Video Capture Properties VV IRON ama as ais ale maia c ala iai cal a i iu a le uite e nm a na B le cn 3 THe Video Proc AM AB ia i iii i iii i i i r ik o ai o E i lac 4 The Video Decoder o pe e e e da i dana magia a t edonai a a a D rea 5 THS 600 PM A rek oprema m 5 Bad Me m e ra e dar au o pv e is eta ai Es i al 6 TS DO VICE T o T i i i da au e i i i i ri i m is L rena 10 Teo RES 20 IDD ap e a em i a a i i alinia i M 10 TO 26 AC CEO TAB Mr o i ii a i po i e i i mc e a ia aki jj o r a ern ee ere 12 VS Ia o ice 98 E o e iii e e ec ree PE a o 14 The ALI T RR i a ii i a i a i pa a alma 16 Capture and Proview PIN Propertio S Mo akies lua i it Bei die in atei o o i E oi ai ll A ao ado 16 Chapter 3 AVStream Driver Reference Intor meti OM sa a adonara in ie i i i ij aie i o as a i i a 18 Overview of Filters Pins and Proper LIE ss ina aia antociani al iais o iii ti ps dora it ii i n i i i a iba 18 Overview or Direct Mode ana PostProcessing MOG6 s sanie scotea ananas dat ii i ca all ii i i 19 EGEN Video Renderi meno comme 20 VES S gt Lai ATS NC S26 PR pr e ma mv ii or e i i i e o e i 22 o eld FOU IIMS np e ram re p P e ali s ial ai ai lite datina 22 oseke Ilea WN GG mne mr o
83. ond or 25 interlaced frames per second 22 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 Note that the Osprey 300 always uses CCIR 601 horizontal proportioning which is based on a 720 pixel full line width C 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 YUY2 and UYVY Each pixel is represented with a total of 2 bytes 16 bits of data The data 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 arrange
84. ontrols option There is a checkbox in Control Panel EM I T gt Sounds and Audio Devices to make this icon appear E pv 1384 Mute al C Select Osprey 300 Audio Device 1 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 Lai Ca Either of these two methods brings up the audio mixer interface for the audio playback device as shown below 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 is selected any other input previously selected becomes unselected The Select checkbox at the bottom of each source sets which source is actually being used 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 co
85. osite v Audio Device Standard RGB 32 v 300 NTSC Ratio 320 x 240 Format Osprey 560 Audio Device 1 Source Unbalanced Video Capture Properties Device Captions Logo Input F Video Proc Amp Video Decoder Sample Rate 48 0 khz v Channels Bits Stereo 16 bit v Size and Crop RefSize Files Video Input Composite Video Standard INTSC vi NTSC NTSCJapan j PAL BDGHI SECAM C B amp w composite camera C Reverse field order DVCam analog transfer Video Present 525 Lines 60 Hz Use Default Capture O Video O Audio 3 Both C 1 ViewCast Osprey Video Capture Cards B C i i In the Video Source dialog select Device Settings If you have preview or overlay video already running you can see the effects of Video Source the four sliders interactively For PAL video keep Hue at its default Wide Source Capture Source Device Settings value Value Auto Brightness 256 Contrast 216 The Video Format dialog is separate from the dialog pages shown Hue 25E previously Access it from a menu entry or button titled Video l Format or Format depending on the application Select from a saturation 254 list of standard resolutions and video formats and click Apply or OK to save the selections The mapper from Video for Windows appl
86. ostProcessing 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 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 e 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 e 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 Compared to Direct Mode Postprocessing Mode adds the following capabilities 1 With SimulStream disabled there is still a maximum 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 del
87. ou 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 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 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 it 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 Tolerance Weighting I I I I I 255 125 The degree of transparency of the logo is variable through 256 steps If the setting is 255 the logo will be opague If the setting is 0 the logo will be complet
88. ovide everyday control of the final output size of your video Control final output size either from your application from the Crop tab or from the Pin Properties dialog described in the next section Changes made on this page apply to all video preview and capture pins on the currently selected device e Horizontal Format e 525 Line NTSC Vertical Format e Reference Size for Crop and Logo Placement Horizontal Delay e Source Width Osprey 530 540 560 only Horizontal Format O CCIR 601 Square Pixels Use the Square Pixels setting for video 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 if the captured video will be later 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
89. ps 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 e The Reference Image group shows the 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 e 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 e By editing the X Y Width and Height boxes e With the two sets of arrows adjacent to these boxes e 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 0 0 driver is 48 wide
90. r future use C The current version of SwiftCap does not capture or display closed captions If you select RGB8 greyscale as your color format SwiftCap captures in greyscale but continues to preview in color Also if you capture to the VMR7 Renderer or VMR9 Renderer you will get color video you will only see greyscale video with the Video Renderer selection SwiftCap does not support Video for Windows devices 33 Operating Temperature Range Non operating Temperature Range Operating Humidity Range Non operating Humidity Range Operating Altitude Range Non operating Altitude Range lane ViewCast Ospre Video Capture Cards P y A 0 to 40 C 40 to 475 C RH Between 5 and 8096 non condensing e 40 C 95 RH non condensing gradient 30 per hour 0 to 3 048 meters 10 000 feet 0 to 15 240 meters 50 000 feet Osprey 100 Backplate C 63 A 2 ViewCast Osprey Video Capture Cards Osprey 210 Backplate LINE OUT LINE OUT Video Capture Cards A A ViewCast Osprey Osprey 300 Backplate 1394 B B C A 1394 A C C B 2 2 C A 78 A 3 ViewCast Osprey Video Capture Cards Osprey 540 Backplate B C E 1394 C C C B 22 C A 227 A 4 A A ViewCast Osprey Video Capture Cards Osprey 560 Backplate mes The Osprey 300 IEEE 1394 inputs connect to standard Microsoft drivers rather than to the Osprey AVStream driver Osprey
91. r pathway instead If the driver s internal rendering is used the VMR7 will work and is recommended ViewCast Osprey Video Capture Cards MR Input 210 Video Composite In 2 1 Video SVideo In EE A L Osprey 300 Crossbar 1 2 2 Video SerialDigital In VMR Input Video Mixing Renderer 9 VMR Inputz 213 Video 1394 In 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 The following measurements are CPU percent on two machines a fairly old P4 and a newer dual Opteron 244 The video size is 640x480 The screen depth is 32 bits The following abbreviations are used e YUY2 the Osprey driver s preview pin in YUY2 format e RGB15 the Osprey driver s preview pin in RGB15 format e RGB32 the Osprey driver s preview pin in RGB32 format e VR old Video Renderer e VMR7 Video Mixing Renderer 7 VMR9 Video Mixing Renderer 9
92. r the capture and preview pins are independent in applications like GraphEdit or AMCap both must be set before both pins are used Access to the Pin Properties dialogs is application specific For example in the AMCap capture application access is by two entries in the Options menu Video Capture Pin and Video Preview Pin In GraphEdit right click on the pin you wish to set the properties for Many applications do not use these dialogs they instead have their own built in ways of setting these parameters The three active fields of the dialog set the Color Space or pixel format of captured video Output Size of the video and Frame Rate The recommended order for setting these parameters is First Color Space second Output Size third Frame Rate If you set the frame rate before the other two it may be lost so that you have to reset it The Output Size drop box displays a selection of standard size settings plus one additional setting designated as default that DirectShow obtains from the capture driver You can obtain specialized video sizes by a two step process First go to the Filter Properties Crop tab described above and set the Default Size to a custom value Then enter the Pin Properties dialog and select the default entry which will now be set to your custom value For more information about the supported color formats refer to Video Driver Topics Color Formats The area of the dialog marked Compression i
93. review pins are always per pin Some of the controls on the Filters tab and the Device tab are global to all Osprey 2XX 300 440 or 530 540 560 devices Global controls are noted as such in their descriptions The rationale is either that the control is logically global to all devices or that it is a rarely used less important control such that users will prefer the convenience of setting the control just once for all devices The groupings of Osprey board models to driver binaries are as follows 0100 etc are short for Osprey 100 etc 0200avs 0100 0200 0210 0220 0230 0300avs 0300 o440avs 0440 o540avs 0530 0540 0560 If a control or setting is described as global it affects all devices on the system within the group to which it belongs That is a global change made in an Osprey 230 property page will affect an Osprey 210 in the system but not an Osprey 560 in it A Brightness a g Es Contrast ll 216 Hue nr 256 Saturation F 4 Sharpness 2 Use the slider controls to set Brightness Contrast Hue Saturation and Sharpness If preview or capture to screen video is running when you access this page you can see your adjustments interactively The Hue adjustment functions for NTSC video only and will be disabled when PAL SECAM or Osprey 530 540 560 digital video is selected This slider has six
94. rey s SwiftCap application as described below currently supports only the Type 1 format With other suitable applications the Osprey 300 DV connector can capture in either format Several additional DirectShow filters support the DV capture module The most important is the DV Video Decoder This filter accepts dvsd video only streams as input As output it delivers an uncompressed YUY2 stream at full half 1 4 or 1 8 size This filter is always used when rendering video When capturing video without compression it is normally not used but could be useful for capturing quarter sized or 1 8 sized video at some savings in data rate Note that the full and half size options would increase the data rate to no purpose When video is captured with compression a DV Video Decoder will be placed in front of the compressor to deliver the YUY2 input that the compressor uses The other specialized DV filter commonly used in capture is the DV splitter which accepts a dvsd audio video interleaved stream as input and outputs dvsd video only on one pin and standard uncompressed audio on the other Following the how to description of SwiftCap there are some sample DirectShow graphs that show some of the ways these components can be connected together B 2 C This section provides specific information about how the bundled capture application SwiftCap supports DV capture on the Osprey 300 Note that this manual also contains a more
95. rposes 1 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 1 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 2 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 SimulStrearm If you are familiar with GraphEdit the best way to visualize SimulStream filters is to construct a multifilter graph with GraphEdit and apply different crop logo and caption settings to each filter C The checkbox at the top of the group turns on SimulStream for the currently selected device If you have a full SimulStream license installed this checkbox controls full 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 is installed If you do have SimulStream turned on the text will say that SimulStream is enabled If you do not have a purchased SimulStream license this checkbox controls SimulStrea
96. rs That is if 1 there are both a preview and a capture pin 2 the capture pin frame rate is 29 97 frames per second 25 0 PAL SECAM and 3 the source video of either or both pins is interlaced using both video fields then there will be NO preview video the preview window will be blank If the above conditions hold except that if the capture pin frame rate is less than 29 97 then the preview rate will be 29 97 minus the capture rate In other words the preview pin will obtain a video frame only in time slots when the capture pin does not require one The driver never copies video from one pin to another in Direct Mode ViewCast Osprey Video Capture Cards On the Osprey 2X0 300 and 440 Direct Mode supports Closed Captioning delivered to the DirectShow CC pin as well as to the new Osprey proprietary CC streaming interface demo ed by the CCChannels applet supplied with the driver The Osprey 530 540 560 implements Closed Captioning differently and captioning of all types requires Post Processing Mode Direct rendering of captions on video within the driver requires Post Processing Mode for all Osprey boards Deinterlace Gamma and Inverse Correction Telecine Scaled i420 Scale and Logo Caption Color Crop Renderer Renderer Converter Logo Renderer Scaled YUY2 Scaled Rab15 Scale and Caption Color Crop Renderer Converter D1 YUY2 The drawing shows a possible graph of video data flow within the driver in P
97. s Deinterlace Auko Inverse Telecine Motion Adaptive C off Currently Using OBO00 Cine Phase Inverse Telecine Motion Adaptive v The deinterlace group has four radio buttons Off Perform no deinterlacing of any kind e Motion Adaptive Apply motion adaptive deinterlacing to all video e Inverse Telecine Apply inverse telecine deinterlacing to all telecine video Perform no deinterlacing of video that is not telecine Available for NTSC video only e 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 Deinterlace settings are applied and stored per device and are applied to all filters and pins associated with a device B 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 10096 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
98. s a VITC timecode waveform Fed 1 O2 Line 18 IL i La 4 1 a omm mo za s E NS a ore E 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 e The device extracts timecode data from the vertical blanking interval VBI waveform e The driver watermarks timecode into the video preview or capture pin s output data e A custom filter decodes the watermark from the video and renders it e 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 is included in the Osprey AVStream SDK The Osprey Timecode Filter also exposes to applications 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 discu
99. s are not used and the controls are greyed e OK 3 Click Start then Stop after a few seconds The Capture Results dialog shows capture statistics including bytes captured number of seconds of capture and number of frames captured and dropped It also has a Play button Click this to play back the AVI file with your default media player C The crop settings obtained in SwiftCap are compatible with the settings obtainable from the driver property pages Once set up in SwiftCap they can be applied to other applications as well The menu item Settings gt Crop Settings brings up the following dialog a Click Enable Crop to enable or disable cropping There is also a direct menu item Settings gt Crop Enable to turn cropping on using the current crop or to turn cropping off b Drag the edges or corners of the cropping rectangle to resize it or drag its center to move it c The top bottom left right edit boxes give a readout of the current crop boundaries You can also edit these boxes directly to obtain a precise size or position d The output size which is the final size of the captured video can be 1X 1 2X or 1 4X the crop size There is also an entry in this drop box by which you can set a custom size C 5 A V iewCast Osprey Video Capture Cards r Crop Settings e The sizing grid sets the NITE ee ead Sos 287116 granularity of your crop width settings For example
100. s do not have all the controls that are accessible from DirectShow applications We therefore recommend that before first use of a Video for Windows application you set up and check out the driver using AMCap or a similar DirectShow application The Swiftcap application screenshots are shown C If you have multiple DirectShow video capture devices on the system selecting the capture device may be a two step process The details will differ slightly with different applications C 32 Pull down the Options menu select from the list of devices at the bottom The Osprey AVStream device will be listed as Microsoft WDM Image Capture Pull down the Options menu again and select Video Source You will see the following dialog Select the Capture Source tab Select the device from the drop list and click Apply or OK Pull down the Settings menu select Capture Settings and select your desired Osprey card under Device C 32 In the same Video Source dialog select the Video Source tab The upper drop list shows the list of inputs for the card The lower drop list shows the supported video formats Select these two items and click Apply or OK Pull down the Video Capture Device menu and select the Video Inputs and Video Standards ViewCast Osprey Video Capture Cards Appendix Capture Settings Video Device Osprey 560 Video Device 1 v Format Use Driver s Default Video FPS Source Comp
101. s not relevant for the Osprey AVStream driver The Video Standard setting is read only in this dialog To set the video standard go to the Video Decoder tab of the filter property pages Capture Properties Stream Format idea Format Compression Video Standard NTSC_M Frame Rate 29970 SI Frame Interval xi Bis Flip Horizontal Elipericitizonta P Frame Interval Color Space Compression Output Size Quality 640 m 400 ViewCast Osprey Video Capture Cards 17 lane ViewCast Ospre Video Capture Cards P y Chapter In DirectShow the words filter and pin as well as driver and device are frequently used The following diagram shows their relationship as they apply to Osprey hardware and drivers SimulStrm Video Filter 1B Video Filter 2 Audio Filter 2 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 is not installed there isa single Video Filter for each Video Device If SimulStream is installed there can be multiple Video Filters for each Video Device
102. see CC1 captions correctly when the CC3 caption channel is selected 3 Ifno XDS data can be decoded from a source that is known to have XDS data 4 f using a broadcast source on the RefSize page having selected Start Video at Lines 23 286 you see a single line of ancillary data line 285 at the top of the screen This control is mainly for use with SDI sources but it is enabled with DV sources as well Therefore if you are using a 486 line SDI source along with a 485 or 480 line DV source you will have to manually change this line each time you switch between these inputs 486 line mode is automatically inhibited for the analog inputs composite and svideo so you do not have to switch it off when you select one of these inputs B C C When a digital video input is selected SDI or DV a checkbox entitled Bypass Color Correction is enabled When this box is checked default values for Brightness Contrast and Saturation are used and the user accessible controls on the Video Proc Amp tab are disabled The Video Proc Amp controls become enabled or disabled only when the driver s properties dialog is exited and re entered SimulsStream SimulStream evaluation is enabled Show 4 filters per device Allow multiple instances of each Filter Use this control group to enable SimulStream or SimulStream evaluation mode and specify how many filters will be exposed For more background about Devices Filters Pins a
103. ssarily slow rendering performance C 3 A 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 0 Video Composite In 1 Video SVideo In Uu Osprey 300 Crossbar 1 aiDigitai In Input Output VMR Inputo E 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 212 Video Seri 213 Video 1394 In This is the only pathway that renders closed captioning correctly when a DShow CC or VBI pin is used rather than the driver s internal rendering For CC rendering the output of the Line 21 filter connects to an input of the Overlay Mixer 7 0 Video Composite In 0 Video Decoder Out 300 Crossbar 1 1 Video S Video In A EE 2 Video SerialDigital In The best video format to use with Overlay Mixer is YUY2 m YMR Input Video Renderer VMR7 is short for Video Mixing Renderer 7 VMR7 is a newer renderer that is generally m
104. ssed here Refer instead to the Osprey AVStream SDK Users Guide A sample SDK applet named TCApp illustrates the interface C 3 A m iewCast Osprey Video Capture Cards Extras Timecode Video Marking v Enable Field 1 17 Line C Timecode stamping must be enabled in the driver before it can be used and the field and line number correctly set The Osprey 530 540 560 unlike the Osprey 100 and 200 series devices does not implement an autosearch function to find the VITC line 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 if timecodes are not present Note that VITC and LTC Longitudinal Timecode are two distinct encoding systems and this driver supports only VITC A suggested reference on timecode is Timecode a user s guide 3rd ed John Ratcliff Focal Press 1999 B B C The Osprey 530 540 560 does not support VBI raw capture It only supports decoded capture of the two special streams Closed Caption CC and vertical interval timecode VITC If your application requires VBI capture for WST teletext decoding or other purposes and you are using analog inputs you can use an Osprey 100 or 200 series device instead The Osprey AVStream driver provides DirectShow compatible VBI
105. supports NTSC closed captions in three separate ways 1 Through standard DirectShow CC and VBI pin 2 Byrendering 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 ViewCast Osprey Video Capture Cards C CC B 7 0560 CC GRF GraphEdit File Edit View Graph Favorites Options Help lia a sele lulu af ej 2 sj 1 aax 2 0 Video Composite In 0 Video Decoder Out Video In X Osprey 560 Crossbar 1 212 Video SerialDigital In g Output Overlay Mixer gt XForm In XForm Out Line 21 Decoder 2 1 Video S Video Renderer 213 Video 1394 In The driver supports the standard DirectShow CC and VBI pins on the Osprey 530 540 560 the CC pin only on the other products both pin types 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 0 0 driver can be set to output CC field 2 character pairs on
106. tab 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 again All controls on the Input tab apply to all filters and pins on the currently selected device If you have multiple Osprey cards set the input individually for each of them Changes take effect when you click the Apply or OK button Video Input Composite Iv idea Present The main Video Input control is a drop list for selecting the video signal source The inputs shown on the list are tailored to the inputs available on your hardware Video Standard NTSC LM 5245 Lines 60 Hz The Video Standard control group is a copy of the controls on the Video Decoder tab The North American standard is NTSC The Japanese standard is NTSC Japan The five PAL standards B D G H and l are very similar and are treated the same way by the Osprey driver The driver also supports SECAM video A Input Format B amp composite camera Reverse field order DY Cam analog transfer Video Capture Cards A ViewCast Osprey On the Osprey 2X0 300 and 440 analog cards and for the Osprey 530 540 560 when an analog input composite or svideo is selected the following controls provide additional adjustments This checkbox improves the clarity of video from monochrome sources This checkbox is only enabled when a composite input line is selected otherwis
107. tation for applicable system requirements e Direct Mode 600 MHz Intel Pentium 3 processor or equivalent e PostProcessing Mode and SimulStream 2 GHz Intel Pentium 4 processor or equivalent 3 GHz recommended e Microsoft Windows XP Professional or Home Edition Windows Server 2003 e Up to 7 5 MB of available hard disk space e 256 MB of RAM 512 MB recommended e One available PCI slot In all cases the most efficient and complete installation method is to run the setup exe program on the product CD or in the web package that you downloaded The setup program automates the Plug and Play steps required 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 that we recommend if you are installing an Osprey card for the first time on a system and the Osprey software has not yet been installed After the install is run as soon as an Osprey card is installed in the PC it is detected and its drivers are started automatically If you are updating Osprey software you should uninstall the software and reboot your computer before installing the update Chapter A Insert the Osprey Software CD into your CDRom drive If you have autoplay enabled the main menu for the Osprey software CD will automatically appear Autoplay should be enabled
108. 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 e Since the driver does not upscale video the default size must be smaller than the crop size For example if the crop size is 320x240 you cannot set default size 400x300 13 ViewCast Osprey Video Capture Cards e 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 352 as soon as you click on another control Note that Pin Properties dialog default entry does not appear in the default VFW DirectShow mapper dialog Thus unless a VFW application like Virtual Dub specifically allows for custom resolutions the VFW app will only be able to select from the options the VFW DirectShow mapper lists The logo property superimposes a graphic over captured video using the logo property controls Logos have the following characteristics e Any RGB 24 bitmap in b
109. the CC pin instead of the standard CC field 1 data XDS vchip data is embedded in the field 2 stream The GraphEdit filtergraph shown here displays CC on rendered onto preview video The Line 21 Decoder downstream of the Osprey 530 540 560 capture filter interprets the CC pairs and renders an overlay of the characters 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 accessible controls built into the driver that affect Closed Captioning 1 On the RefSize property page in the control group sho
110. the point of cable entry as practical Dispose of this product in accordance with local and national disposal regulations if any including those governing the recovery and recycling of waste electrical and electronic equipement WEEE viewcast com weee C 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 OMPLIART 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 Chapter 1 Getting Started With Your Osprey video Capture Caltl eia uineas sd at Goiasa ai ale Ga ina Us ln al a ia js 1 SSS TN FeGtursemenES oso osa PERI A TR e PR O A on o ae wan ee nae TRE i o EMEN NUMEN UE 1 Installing the Osprey AVStream Driver iai etana iii d t ei ia ia ii ai it i i RPNMUE 1 Instaling Your Osprey video Capture CAES ea i lol is a i dar fa a al 2 Adag vind BOSS ee MR A PIC a SRR ARI ARI 2 Chapter 2 Setting the AVStream Driver PFODSFLTIGS iza ni untura uad gu ui na ir dota iii io
111. tion Avi File Swift Cap avi Video AMI File Select file above Haw File Mone C Captured data is discarded Audio AMI File Select file above C Documents and Settings pth OSPREY PCS Wave File Raw File Mone Captured data is discarded Oscillascope Displays audio waveform ami MBC 22 30 O Audio Both AM Master Judo V Interlzaving capture v JAY 1 0 Compatible Ren mara Cancel Capture Destination Avi Fila SwiftCap avi Video AVI File Select file above Haw File Renderer VMR Renderer LM None Captured data is discarded _ AVl 1 0 Compatible Audio AMI File 3 Select file above Wave File CADocuments and Settings pt OS PRE PLA Haw File Renderer Default DirectSound Device V Mone Captured data is discarded Oscilloscope Displays audio waveform 1 No changes are mandatory from the previous setup the Capture Settings dialog However you may want to select a video and or audio compressor to obtain a much more compact capture file 2 In the Capture Destination dialog make changes as shown below a In the video section click the AVI File button b Do the same in the audio section c Select an AVI file Click the gt gt button on the right to browse for a file d Select Audio as the AVI Master and Capture as the Interleaving Mode If you are capturing video only or audio only these setting
112. tive Lok Jf Cancel J ev JL me In the Video Capture Properties Dialog box the Filter tab has a section for the Postprocessing Mode f you choose Maximize Video Quality EaseStream is disabled e f you choose Maximize Video Throughput EaseStream Postprocessing this allows for more data throughput which simultaneously allows for higher resolution capture on more channels 20 3 The following post processing filters can be applied with or without SimulStream enabled motion adaptive deinterlacing and inverse telecine gamma correction logos on video caption rendering Some of these filters operate globally on all filters and pins of a devices 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 e The basic reference size CCIR 601 or square pixel is established in hardware Horizontal delay and Osprey 530 540 560 720 704 width select are also performed in hardware e Deinterlace inverse telecine and gamma correction are applied to all filters and pins 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 field exact scaled video e Crop logo and caption settings can
113. ts e Wear a grounding strap while handling the cards especially when located in a high static area e Provide a continuous ground path by leaving the power cord plugged into a grounded power outlet e Ensure that the workstation is powered OFF before installing any components e f you are not familiar with how to install a PCI bus card refer to your system s documentation for more complete step by step instructions e To be used only with UL Listed computers that include instructions for user installed accessories 1 Power down your computer and disconnect the power cable 2 Remove the computer s cover and locate an empty PCI slot 3 Remove the cover screw from the empty PCI slot s cover set the screw aside 4 Remove the slot cover 5 Remove your Osprey Video Capture Card from its anti static bag 6 Insert the Osprey card into the empty PCI slot and make sure that it is seated evenly Secure the back panel of the card with the slot s cover screw 8 Replace the computer cover Turn the computer on B i A B There are six classes of Osprey devices as follows e class 1 0100 0200 0210 0220 0230 e class 2 0300 e class 3 0440 e class 4 0530 0540 0560 e class 5 0700HD and later DSP based PCI Express products e class 6 0240 and related non DSP PCI Express products Each of the six device classes has a separate driver This user guide applies only to classes 1 through 4 Therefore if you have bot
114. tual rate of the incoming data The two most common formats are 48 kHz 16 bit and 32 kHz 12 bit You may have to listen to a captured sample of your audio to determine whether the sample rate is set correctly if the pitch is incorrect try the other setting e fset to Use Left Channel then left channel audio data is copied to the right channel e fset to Use Right Channel then right channel audio data is copied to the left channel e f 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 A 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 mixer click the update button to refresh the settings Audio Level Audio Level Audio Level Input Ref Boost Input Ref Boost i Boost 3dBV 30dB 12dBu 30dB 3 dB L gt 4dBu gt lt 10dBY gt 0dB o Ode gt Odg 23dBV
115. ture Cards C 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 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 Horizontal Delay ij o bj KB 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 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 15 to 15 With uncropped video the video will shift only on every second increment 0 2 4 530 540 560 The Source Width control can be used to trim the KOE black left and right edges of an image This control is only available for NTSC video and Em only when the Horizontal Format is set to l Square Pixels such that the reference size is B 704 640x480 704 The suggested procedure is as follows 1 With vid
116. uch 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 ES Ue UE 3 Video 1394 In 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 frames are to be rendered with VMR7 at the same time only one can be YUY2 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 Rendere
117. udioConfig 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 Mono Source Mode Use Left Channel Audio Level Input Ref Boost 12dBu 30dB A L gt 4dBu L gt OdB The audio sample rate is the rate at which the hardware samples the incoming audio which may differ from the sample rate delivered to Sed 30dB the client application dB ii o Con dBu 4 The choice are to allow Any Supported Rate or to force the sampling rate 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 XLR Balanced Update Select input in mixer then Update When the audio input is SDI the only sample rate that the Osprey hardware supports is 48 kHz The driver will override your setting here 27 ViewCast Osprey Video Capture Cards When the audio input is DV1394 you have to use this control to match your audio sample rate to the ac
118. wn 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 2 Onthe 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 Onthe Device gt Extras property page you have the choice to set with Normal or AVI Compatible timestamping of Closed Caption samples 23 ViewCast Osprey Video Capture Cards 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 the 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
119. works analogously Note to SimulStream users The Pin Select control group is different when SimulStream is enabled Refer to the SimulStream section of this guide for a description 14 Another note The Osprey SwiftCap capture application greys out the Pin Select choices and forces the Both selection This application expects the Logo settings for Capture and Preview to be locked together Some other Osprey applications may do this by intention as well However several other applications such as Windows Media Encoder do not grey out the Pin Select choices and you have the options to choose Capture Preview or Both Please see the screenshot below Pin Select capture Preview Both File and Color Position and Size Enable Loga Browse for File EApthspics XD sprey Bird light gray bmp The Enable Logo checkbox which is repeated on both sub pages enables or disables logos If you disable logos all your other logo settings are retained for when you re enable logos again The Browse button brings up a standard file select dialog Logo files must be e n bmp format with a bmp filename extension e n RGB 24 format If you have a graphic that is in another format edit it with a drawing or photo edit program such as Windows Paint and save it as RGB 24 Enable Key Calor DkGrey 182 Red Magenta 132 Gresn Cyan 182 Blue 3 Grey Other o Tolerance Y
120. y 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 nota legal size for this format 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 16x4 You are guaranteed that your crop and output sizes will never be adjusted regardless of what video format you select now or in the future C Enable Cropping E T width Height Left BO Hall Aight 520 240 360 Bottom If you uncheck the Enable Cropping checkbox your video will not be cropp

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