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Setting Driver Properties

60

ViewCast

Size and Crop tab

This tab (Figure 57) has two functions. It sets the default output size, whether or not you enable
cropping. It enables and disables cropping, and sets the cropping area.

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 nonstandard video size in applications that do not
have a custom video sizing controls built into them.

Cropping means removal of unwanted video around the edges of the incoming image. For example, if
the incoming video is letterboxed, with an aspect ratio wider than 4:3, you can crop 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.

Figure 57. Size and Crop tab

The Size and Crop tab has the following controls.

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Содержание OSPREY 240E

Страница 1: ...Osprey 240e 450e User Guide AVStream Driver Version 4 6...

Страница 2: ...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 th...

Страница 3: ...the device properties window 11 Devices and global controls 13 Input tab 14 Osprey 450e AV option hardware add on device 16 Video input 17 Video standard 18 Input Format analog inputs 19 VideoCheck 2...

Страница 4: ...t 61 Reference Size 61 Granularity 62 Enable Cropping 63 Default Output Size 65 AVStream driver reference information 67 Post Processing mode 69 Efficient Video Rendering 71 Preview Pin to Video Rende...

Страница 5: ...ppendix A Osprey hardware specifications 87 Osprey 240e 87 Environmental specifications 87 Osprey 450e 89 Appendix B Osprey 450e audio cable 91 Appendix C Troubleshooting 93 Color bars on video screen...

Страница 6: ......

Страница 7: ...lowing Limited Warranty ViewCast warrants its hardware products against defects in material and workmanship under normal use for the period of one year 12 months from date of sale Where specific warra...

Страница 8: ...below Please consult your software documentation for applicable system requirements Minimum system requirements Direct Mode 2 GHz Intel Pentium 4 processor or equivalent PostProcessing Mode and Simul...

Страница 9: ...od especially if Osprey software does reside on your host computer After the install is run the software detects the card and its drivers initiate automatically If you are updating Osprey software fir...

Страница 10: ...use the same driver If you add a card from a different class then you need to install the driver for that card When you add or move boards after the AVStream 4 6 driver is already installed there are...

Страница 11: ...ress bus card refer to the system s documentation for more complete step by step instructions Install the card only in UL Listed computers that include instructions for user installed accessories To i...

Страница 12: ...side this window changes to Osprey Video Capture Device Installing Then the Digital Signature Not Found window appears on top of it 2 Click Continue Anyway The Completing the Found New Hardware window...

Страница 13: ...oft Windows Media Encoder or RealProducer We also access card property pages through Osprey Config the utility bundled with our 4 6 driver suite Once installed you can see the card s default settings...

Страница 14: ...ds and devices installed on your computer Figure 5 Initial OspreyConfig user interface In this example the computer in use has one card and four devices The card can take a single input and stream the...

Страница 15: ...gure 6 shows the user interface that appears when you select a filter We expanded the Osprey 450e Device 1A and selected Video Filter We ll continue with this device unless we indicate otherwise Figur...

Страница 16: ...tting Driver Properties 10 ViewCast When you choose Device 1A and Video Filter 1 the Show Properties for Selected Filter button becomes active Figure 7 Figure 7 Control used to open the properties pag...

Страница 17: ...to select different controls Figure 8 The 4 6 driver includes changes from previous versions the tabs have changed They now take advantage of the 4 6 driver s advances and added functionality Figure 8...

Страница 18: ...ers SimulStream processing mode gamma deinterlace and inverse telecine Device Test Pattern Capture Buffers Diagnostic Logging Captions Set up on video closed caption rendering Logo Set up on video log...

Страница 19: ...coder Input Filters Device and or RefSize tabs and the effect is global to the card All characteristics on each device on the card change to those changed on a single device This is limited to the car...

Страница 20: ...number of devices such as DVD players digital cameras camcorders and so forth Figure 10 Input tab The controls on the Input tab of the driver properties card have a global effect on the Osprey capture...

Страница 21: ...re 10 from the drop down list Input Format This control works with digital cameras routing through the Osprey s card s analog input VideoCheck This button opens a simple video monitoring window VideoG...

Страница 22: ...t option provides a single video capability Composite Note Use Osprey Config to set balanced audio for Microsoft Windows Media Encoder Figure 11 Input tab without AV option Without the AV hardware opt...

Страница 23: ...nections The YPrPB dongle is primarily for YPrPb Component inputs as shown in Figure 15 YPrPb dongle connections The blue Pb input can also be used as a Composite input The driver should be set to Com...

Страница 24: ...ideo Decoder tab The North American standard is NTSC The Japanese standard is NTSC Japan The five PAL standards B D G H and I are similar and are treated the same way by the Osprey driver The driver a...

Страница 25: ...mprove the clarity of video from monochrome sources When you select a composite input line and attach a monochrome device the result is a sharper image as shown in the notch kill item in Figure 19 Thi...

Страница 26: ...nd shows the expected levels and the red line shows the actual levels measured The right hand panel shows the chroma positions of the six colors The small colored squares show the expected positions a...

Страница 27: ...box with an alternate and slightly more technical description Figure 21 VideoGraph VbiGraph VbiGraph Figure 22 opens an applet that displays the raw waveforms of the video s Vertical Blanking Interva...

Страница 28: ...0e 450e cards The Video Proc Amp is the second tab from the left of the Device 1A properties Figure 23 Figure 23 Video Proc Amp Tab The Video Proc Amp uses slider controls to adjust brightness contras...

Страница 29: ...step engages a different combination of discrete filters some steps may result in slight differences while other steps may result in large differences The range is 0 to 7 Gamma You will rarely need to...

Страница 30: ...captures pins on the currently selected device If you have multiple Osprey cards you can set the input individually for each of them Changes made with this control take effect immediately If video is...

Страница 31: ...input signal it displays 1 Lines detected This field displays the number of lines the card detects in the input signal VCR Input This field is a DirectShow feature that is not implemented Output Enab...

Страница 32: ...s page does not provide everyday control for the final output size of your video You ll likely control final output size from your application the Size and Crop tab or from the Pin Properties dialog d...

Страница 33: ...sults in a square aspect ratio sampling of the source video and a source image of 640 x 480 for 525 line standards and 768 x 576 for 625 line standards CCIR 601 Use the CCIR 601 setting for 4 3 video...

Страница 34: ...as the following effects 4 3 video on a 4 3 window shows without sidebars or letterboxing 4 3 video on a 16 9 window shows with sidebars 16 9 video on a 16 9 window shows without sidebars or letterbox...

Страница 35: ...l Delay control The minus button moves the right edge to the left the plus button moves it to the right Adjustments are relative to the standard CCIR horizontal size of 720 pixels The 720 button reset...

Страница 36: ...ent Figure 29 Reference Size for Crop and Logo Placement This part of the dialog is read only because you do not set it directly rather it shows the results of settings made elsewhere in the dialog Th...

Страница 37: ...appear as moving bands or streaks across the top lines Therefore the most generally useful start lines are 23 286 Some broadcast video also uses additional top line pairs for ancillary data We are se...

Страница 38: ...Stream Enables SimulStream to output the same video in different sizes color formats frame rates crops logos and captioning Deinterlace Deinterlace settings are applied and stored per device and are a...

Страница 39: ...mpared to the previous pin based method there are no requirements for a particular startup order in order to associate settings with instantiations SimulStream Use the SimulStream control to enable Si...

Страница 40: ...when the Multiple Instances option is selected The advantage of this mode is that it is simpler If you are not using osprey custom cropping logos or Closed Captions or if all streams have the same set...

Страница 41: ...1A 3 or 1A 4 Settings that are not per filter such as Reference Size or the Video Proc Amp settings will affect all filters on the underlying Osprey 450e Video Device 1A To set the custom properties...

Страница 42: ...ied to all filters and pins associated with a device Changes to this control take effect as soon as you click Apply or OK When to deinterlace When in doubt deinterlace In some cases bad artifacts will...

Страница 43: ...deo but only if the exact 1 1 vertical scaling is preserved The downstream deinterlacer will not be able to work with video that is scaled upstream of it see Notes Background telecine and inverse tele...

Страница 44: ...ettings With inverse telecine enabled when telecine content is detected the five Cine Phase dots show whether the 3 2 pulldown sequence is shifting If it is shifting the green marker shifts This happe...

Страница 45: ...r Test Mode and move the slider to the right the number of pixels that are considered in motion is greatly reduced As you move the slider to the left the number of motion pixels greatly increases unti...

Страница 46: ...ults Click this button to restore the default settings Help Click Help to access the user guide Close Click Close to close the window Effects on video latency Note Drivers prior to 4 6 1 always added...

Страница 47: ...is 0 85 msec Notes When you select Auto mode some kinds of content cause the driver to frequently switch between Inverse Telecine and Motion Adaptive processing Content such as title sequences and co...

Страница 48: ...devices Figure 38 Device tab The Device tab has the following controls No Video Test Pattern This control lets you select a pattern to display when no video signal is present Buffers Requested The dr...

Страница 49: ...header You can place a text line on the test pattern If the Text edit box is empty no spaces and no text characters then no text will appear Otherwise whatever you enter up to 32 characters displays...

Страница 50: ...On the Capture pin you can reduce the number of buffers to around 5 if the video is going to be used only for direct rendering Remember to put the number back to 50 or more for capture or encoding to...

Страница 51: ...View lets you write diagnostics to the standard kernel driver debug stream which can be captured and displayed by utilities such as DebugView DebugView is a Microsoft utility that can be downloaded fr...

Страница 52: ...in which the system identified and initialized the boards The driver associates each device number with the PCI address of the board to which it is initially assigned and saves that information Each...

Страница 53: ...e current device number on the right For boards such as the Osprey 450e which span multiple PCI addresses the PCI Bus Slot information is not shown The device numbers are editable You can assign each...

Страница 54: ...umbers After you renumber boards you may have to re set your volume levels On Microsoft Windows XP platforms you may also have to re select your audio inputs When you add a new board especially a boar...

Страница 55: ...iver and may not be shown for all versions of the drivers Figure 45 Extras Extras should be expected to change more frequently than other aspects of the driver Timecode Video Marking Refer to the Vert...

Страница 56: ...ecoded caption data to a DirectShow compliant CC pin It can send the raw undecoded Line 21 caption waveform to a DirectShow compliant VBI pin It can deliver decoded caption data to a proprietary inter...

Страница 57: ...Field 2 of the video OK Click OK to accept the settings Cancel Click Cancel to reject the settings and close the window Apply Click Apply to apply the settings Help Click Help to access the user guide...

Страница 58: ...document But CC 1 is by far the most commonly used channel Select CC 1 unless you have specific knowledge that you want to render another channel Render Logical White As The control group Render Logic...

Страница 59: ...ield 1 however this extension allows application developers to access Field 2 data including XDS data such as V chip data via the standard DirectShow CC pin For most purposes including scripting in ap...

Страница 60: ...go tab has the following controls Pin Select The drop down list has three choices Capture Preview Both Enable Logo on File and Color sub tab From this control enable or disable the logo Enable Key Col...

Страница 61: ...all parts of the logo graphic with that color are not drawn on the video Use a transparency control to blend the logo graphic with the background video Use this control in combination with the alpha...

Страница 62: ...disables logos If you disable logos all your other logo settings are retained for when you re enable logos In Figure 52 Browse for File opens a standard file select dialog Logo files must be In BMP 24...

Страница 63: ...uttons are activated You can select one of four standard colors dark gray medium gray cyan or magenta or a custom color If you select Other for a custom color the three edit boxes Red Green and Blue a...

Страница 64: ...ixel is weighted 50 according to the alpha data and the weighting control is also set to 50 the pixel will display as 25 opaque Figure 55 Weighting Figure 56 Logo position Position and Size The Logo P...

Страница 65: ...for each Notes Because you use the Logo tab 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...

Страница 66: ...g a custom or nonstandard video size in applications that do not have a custom video sizing controls built into them Cropping means removal of unwanted video around the edges of the incoming image For...

Страница 67: ...pin properties dialog as the default choice It is a pathway for setting a custom or nonstandard video size in applications that do not have custom video sizing controls built into them Pin Select You...

Страница 68: ...referred to as granularity restrictions For example the I420 capture format requires that the capture width be a multiple of 4 and the capture height be a multiple of 2 The granularities for the vario...

Страница 69: ...p your crops with a less restrictive granularity for example YUY2 and then capture with a more restricted granularity for example I420 the driver may automatically adjust the video crop and or output...

Страница 70: ...ng changes You have to use a value that is larger than the next granularity threshold See Granularity for the values of the granularity parameters In the Default Output Size group Recalc changes the d...

Страница 71: ...640 x 480 with 1 2X 320 x 240 and with 1 4X 160 x 120 Example 2 If you have enabled cropping with size 320 x 240 one quarter of the full video area the default Auto Sizes are as follows 1X 320 x 240...

Страница 72: ......

Страница 73: ...r acts as a virtual device that can be accessed by name and can deliver a separate video stream with its own independent control settings When you enable SimulStream some functions and capabilities ar...

Страница 74: ...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 through visual...

Страница 75: ...e scaled and cropping identically so a single scaling operation can service both pins The third pin has a different scale crop specification so its video runs through a separate scaler cropper The vid...

Страница 76: ...n video caption rendering Some of these filters operate globally on all filters and pins of a device and some operate on a per filter or per pin basis The Video Proc Amp controls brightness contrast h...

Страница 77: ...sen when an application says Render without specifying a preferred pathway For this reason many applications deliver unnecessarily slow rendering performance Video Renderer works best when your output...

Страница 78: ...ss efficiently 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 sc...

Страница 79: ...B15 format RGB32 the Osprey driver s preview pin in RGB32 format VR old Video Renderer VMR7 Video Mixing Renderer 7 VMR9 Video Mixing Renderer 9 AVI AVI Decompressor OVL Overlay Mixer The PostProc res...

Страница 80: ...AVStream Driver Reference Information 74 ViewCast...

Страница 81: ...ormat 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 info...

Страница 82: ...yte among two or more pixels YUV is also 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 arra...

Страница 83: ...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 rendered onto preview video The Overlay Mixer combines...

Страница 84: ...Normal timestamping the file becomes extremely large and the capture will fail within a few seconds The AVI Compatible mode allows capture of CC to AVI Unfortunately the problem with timestamping mean...

Страница 85: ...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 waterma...

Страница 86: ...e The Osprey AVStream driver provides DirectShow compatible VBI pins VBI data includes Vertical Interval Timecode VITC in both the NTSC and PAL worlds In NTSC line 21 Closed Captioning although it is...

Страница 87: ...r accessing this interface is to right click the speaker symbol on your taskbar typically on the bottom right hand side of your screen Then select the Open Volume Control option Figure 70 There is a c...

Страница 88: ...io input any other input you previously selected becomes unselected The Select check box at the bottom of each source sets which source is actually being used Osprey cards have hardware gain control T...

Страница 89: ...box then click Enable This step also deselects whichever input had been previously selected For example if you select XLR Balanced instead of the first input on the list Unbalanced and you close and r...

Страница 90: ...ey 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 If set to Use Left Channel then left channel audio data...

Страница 91: ...R filters Each has two quasi stereo outputs The audio is identical on each quasi channel except that the user balance control can be used to reduce the volume on one channel However the underlying har...

Страница 92: ...d 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 clippin...

Страница 93: ...40 C Non operating temperature range 40 to 75 C Operating humidity range Between 5 and 80 non condensing 40 C Non operating humidity range 95 RH non condensing gradient 30 per hour Operating altitude...

Страница 94: ...prey Hardware Specifications 88 ViewCast Figure 75 Osprey 240e long back plate Figure 76 Osprey 240e short back plate Figure 77 PCI Express Bus compliance PCI Express Bus compliant Approximate weight...

Страница 95: ...Osprey 240e 450e User Guide ViewCast 89 Osprey 450e Figure 78 Osprey 450e back plate...

Страница 96: ...Appendix A Osprey Hardware Specifications 90 ViewCast...

Страница 97: ...ft Channel B Left Center 4 Channel B Right Channel B Right Center 5 Channel C Left Channel C Left Center 6 Channel C Right Channel C Right Center 7 Channel D Left Channel D Left Center 8 Channel D Rig...

Страница 98: ......

Страница 99: ...lve this problem check the following Check that the camera VCR or other video source is powered and that its output is connected to the Osprey card s input Check that you selected the correct video in...

Страница 100: ...blue to green These lines are not present in every frame of video There may also be a black band at the top of the frame There are other brands of copy protection besides Macrovision Some of these br...

Страница 101: ...n 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...

Страница 102: ......

Страница 103: ...annel 52 CC or VBI pins 77 CC Pin 53 CCIR 601 setting 27 change the default settings of the 4 6 driver 11 chroma 16 Cine Phase 38 Closed Caption Timestamping 49 closed captioning 77 Color formats 75 C...

Страница 104: ...go tab 54 59 luma 16 M motion adaptive 36 motion adaptive deinterlace 37 motion threshold 39 multiple filters 34 Multiple instances 34 N Notch Kill 19 No Video Test Pattern 43 Nudge buttons 59 Number...

Страница 105: ...e Pixel setting 27 System Settings Change Window 6 T telecine 37 Test Mode 40 Timecode Video Marking 49 80 Tolerance 57 Tolerance control 57 U Use WideScreen Signal WSS 28 V VbiGraph 21 vertical blank...

Страница 106: ...and design TM are registered trademarks of ViewCast Corporation or its subsidiaries All other trademarks are the property of their respective owners Product specifications and availability may change...

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