1 files changed, 243 insertions, 0 deletions
diff --git a/AVStream/avssamp/avssamp.cpp b/AVStream/avssamp/avssamp.cpp
new file mode 100644
index 00000000..5a2c2b77
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+++ b/AVStream/avssamp/avssamp.cpp
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+/**************************************************************************
+
+AVStream Filter-Centric Sample
+
+Copyright (c) 1999 - 2001, Microsoft Corporation
+
+File:
+
+avssamp.cpp
+
+Abstract:
+
+This is the main file for the filter-centric sample.
+
+History:
+
+created 6/18/01
+
+**************************************************************************/
+
+#include "avssamp.h"
+
+/**************************************************************************
+
+INITIALIZATION CODE
+
+**************************************************************************/
+
+
+extern "C" DRIVER_INITIALIZE DriverEntry;
+
+PVOID operator new
+(
+    size_t          iSize,
+    _When_((poolType & NonPagedPoolMustSucceed) != 0,
+        __drv_reportError("Must succeed pool allocations are forbidden. "
+            "Allocation failures cause a system crash"))
+    POOL_TYPE       poolType
+    )
+{
+    PVOID result = ExAllocatePoolWithTag(poolType, iSize, 'wNCK');
+
+    if (result) {
+        RtlZeroMemory(result, iSize);
+    }
+
+    return result;
+}
+
+PVOID operator new
+(
+    size_t          iSize,
+    _When_((poolType & NonPagedPoolMustSucceed) != 0,
+        __drv_reportError("Must succeed pool allocations are forbidden. "
+            "Allocation failures cause a system crash"))
+    POOL_TYPE       poolType,
+    ULONG           tag
+    )
+{
+    PVOID result = ExAllocatePoolWithTag(poolType, iSize, tag);
+
+    if (result) {
+        RtlZeroMemory(result, iSize);
+    }
+
+    return result;
+}
+
+/*++
+
+Routine Description:
+
+Array delete() operator.
+
+Arguments:
+
+pVoid -
+The memory to free.
+
+Return Value:
+
+None
+
+--*/
+void
+__cdecl
+operator delete[](
+    PVOID pVoid
+    )
+{
+    if (pVoid)
+    {
+        ExFreePool(pVoid);
+    }
+}
+
+/*++
+
+Routine Description:
+
+Sized delete() operator.
+
+Arguments:
+
+pVoid -
+The memory to free.
+
+size -
+The size of the memory to free.
+
+Return Value:
+
+None
+
+--*/
+void __cdecl operator delete
+(
+    void *pVoid,
+    size_t /*size*/
+    )
+{
+    if (pVoid)
+    {
+        ExFreePool(pVoid);
+    }
+}
+
+/*++
+
+Routine Description:
+
+Sized delete[]() operator.
+
+Arguments:
+
+pVoid -
+The memory to free.
+
+size -
+The size of the memory to free.
+
+Return Value:
+
+None
+
+--*/
+void __cdecl operator delete[]
+(
+    void *pVoid,
+    size_t /*size*/
+    )
+{
+    if (pVoid)
+    {
+        ExFreePool(pVoid);
+    }
+}
+
+extern "C"
+NTSTATUS
+DriverEntry(
+    IN PDRIVER_OBJECT DriverObject,
+    IN PUNICODE_STRING RegistryPath
+)
+
+/*++
+
+Routine Description:
+
+Driver entry point.  Pass off control to the AVStream initialization
+function (KsInitializeDriver) and return the status code from it.
+
+Arguments:
+
+DriverObject -
+The WDM driver object for our driver
+
+RegistryPath -
+The registry path for our registry info
+
+Return Value:
+
+As from KsInitializeDriver
+
+--*/
+
+{
+
+    //
+    // Simply pass the device descriptor and parameters off to AVStream
+    // to initialize us.  This will cause filter factories to be set up
+    // at add & start.  Everything is done based on the descriptors passed
+    // here.
+    //
+    return
+        KsInitializeDriver(
+            DriverObject,
+            RegistryPath,
+            &CaptureDeviceDescriptor
+        );
+
+}
+
+/**************************************************************************
+
+DESCRIPTOR AND DISPATCH LAYOUT
+
+**************************************************************************/
+
+//
+// FilterDescriptors:
+//
+// The table of filter descriptors that this device supports.  Each one of
+// these will be used as a template to create a filter-factory on the device.
+//
+DEFINE_KSFILTER_DESCRIPTOR_TABLE(FilterDescriptors) {
+    &CaptureFilterDescriptor
+};
+
+//
+// CaptureDeviceDescriptor:
+//
+// This is the device descriptor for the capture device.  It points to the
+// dispatch table and contains a list of filter descriptors that describe
+// filter-types that this device supports.  Note that the filter-descriptors
+// can be created dynamically and the factories created via
+// KsCreateFilterFactory as well.
+//
+const
+KSDEVICE_DESCRIPTOR
+CaptureDeviceDescriptor = {
+    //
+    // Since this is a software sample (filter-centric filters usually are
+    // software kinds of transforms), we really don't care about device level
+    // notifications and work.  The default behavior done on behalf of us
+    // by AVStream will be quite sufficient.
+    //
+    NULL,
+    SIZEOF_ARRAY(FilterDescriptors),
+    FilterDescriptors,
+    KSDEVICE_DESCRIPTOR_VERSION
+};
+