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+/**************************************************************************
+
+ A/V Stream Camera Sample
+
+ Copyright (c) 2001, Microsoft Corporation.
+
+ File:
+
+ videocapture.cpp
+
+ Abstract:
+
+ Video Capture Pin implementation.
+
+ Handles construction and defines pin data ranges.
+
+ History:
+
+ created 3/8/2001
+
+**************************************************************************/
+
+#include "Common.h"
+#include "ntintsafe.h"
+
+#ifdef ALLOC_PRAGMA
+#pragma code_seg("PAGE")
+#endif // ALLOC_PRAGMA
+
+
+CVideoCapturePin::CVideoCapturePin(IN PKSPIN Pin) :
+ CCapturePin (Pin)
+{
+ PAGED_CODE();
+
+}
+
+
+/*************************************************
+
+Routine Description:
+
+ Create a new capture pin. This is the creation dispatch for
+ the video capture pin.
+
+Arguments:
+
+ Pin -
+ The pin being created
+
+ Irp -
+ The creation Irp
+
+Return Value:
+
+ Success / Failure
+
+**************************************************/
+
+NTSTATUS
+CVideoCapturePin::
+DispatchCreate(
+ IN PKSPIN Pin,
+ IN PIRP Irp
+)
+{
+ PAGED_CODE();
+
+ DBG_ENTER("(Pin=%d)", Pin->Id);
+
+ NTSTATUS Status = STATUS_SUCCESS;
+
+ CCaptureFilter* pFilter = reinterpret_cast <CCaptureFilter*>(KsPinGetParentFilter(Pin)->Context);
+ CVideoCapturePin *CapPin = new (NonPagedPoolNx) CVideoCapturePin (Pin);
+
+ if( !CapPin )
+ {
+ // Fail if we couldn't create the pin.
+ Status = STATUS_INSUFFICIENT_RESOURCES;
+ }
+ else
+ {
+ Status =
+ CapPin->Initialize();
+ }
+
+ if( NT_SUCCESS (Status) )
+ {
+ //
+ // Adjust the stream header size. The video packets have extended
+ // header info (KS_FRAME_INFO).
+ //
+ pFilter->setPin(CapPin, Pin->Id);
+ }
+ else
+ {
+ // Clean up.
+ delete CapPin;
+ }
+
+ DBG_LEAVE("(Pin=%d)=0x%08X", Pin->Id, Status);
+ return Status;
+}
+
+//
+// CapturePinDispatch:
+//
+// This is the dispatch table for the capture pin. It provides notifications
+// about creation, closure, processing, data formats, etc...
+//
+DEFINE_CAMERA_KSPIN_DISPATCH( VideoCapturePinDispatch, CVideoCapturePin );
+
+//
+// CapturePinAllocatorFraming:
+//
+// This is the simple framing structure for the capture pin. Note that this
+// will be modified via KsEdit when the actual capture format is determined.
+//
+DECLARE_SIMPLE_FRAMING_EX(
+ VideoCapturePinAllocatorFraming,
+ STATICGUIDOF( KSMEMORY_TYPE_KERNEL_NONPAGED ),
+ KSALLOCATOR_REQUIREMENTF_SYSTEM_MEMORY |
+ KSALLOCATOR_REQUIREMENTF_PREFERENCES_ONLY,
+ 2,
+ 0,
+ 2 * PAGE_SIZE,
+ 2 * PAGE_SIZE
+);
+
+