66 lines
2 KiB
Plaintext
66 lines
2 KiB
Plaintext
Readme.txt for BT848
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Description:
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------------
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BT848 is a sample WDM stream class Capture driver which supports the
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BT848 and BT878 video digitizer chips from Brooktree. It manifests
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itself in a DShow graph as two filters, "BT848 Capture", and "BT848 Crossbar".
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This is a fairly complex driver, in that it supports an input stream
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representing analog video, and three capture streams for video, preview, and
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VBI data.
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Installation:
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-------------
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Use the file "BT848.inf" to install this device.
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Testing:
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--------
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1. WebTV for Windows
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- Install a Brooktree BT848 evaluation card.
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- Install WebTV for Windows
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StartMenu.Settings.ControlPanel.Add/Remove Programs.WindowsSetup.
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WebTV for Windows
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- Click the TV icon in the tray, and watch TV
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2. GraphEdt.exe
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- Make sure you're using a version of DShow 5.2 or better
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GraphEdt.exe. This is needed to support new PnP features.
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- Graph.InsertFilters
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"WDM Streaming Capture Devices"
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"BT848 Capture"
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"WDM Streaming Crossbar Devices"
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"BT848 Crossbar"
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"WDM Streaming TvTuner Devices"
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"BT848 TvTuner"
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- Connect up the graph by rendering the output pins on the TvTuner
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- Graph.Play
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- Right Click on TvTuner filter to change the TV channel
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- Right Click on Crossbar filter to change the input selection.
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- Right Click on Capture filter to change capture filter properties
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3. AMCap.exe
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This capture application is provided in the DShow SDK, and does all of
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the graph building automatically for both WDM and VFW capture filters.
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Other stuff:
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------------
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- To test VBI capture operation, use VBIScope.ax. This DShow filter
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gives a graphical display of any two selected VBI lines and provides
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precise timing information.
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- This driver is still in progress as of 4/27/98, and should not be considered
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final.
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