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1658 lines
44 KiB
1658 lines
44 KiB
//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1992 - 1999 Microsoft Corporation. All Rights Reserved.
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//
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//==========================================================================;
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#include "strmini.h"
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#include "ksmedia.h"
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#include "capmain.h"
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#include "capdebug.h"
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#include "capxfer.h"
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#include "ntstatus.h"
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//==========================================================================;
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// General queue management routines
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//==========================================================================;
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/*
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** AddToListIfBusy ()
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**
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** Grabs a spinlock, checks the busy flag, and if set adds an SRB to a queue
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**
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** Arguments:
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**
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** pSrb - Stream request block
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**
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** SpinLock - The spinlock to use when checking the flag
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**
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** BusyFlag - The flag to check
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**
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** ListHead - The list onto which the Srb will be added if the busy flag is set
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**
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** Returns:
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**
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** The state of the busy flag on entry. This will be TRUE if we're already
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** processing an SRB, and FALSE if no SRB is already in progress.
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**
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** Side Effects: none
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*/
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BOOL
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STREAMAPI
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AddToListIfBusy (
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IN PHW_STREAM_REQUEST_BLOCK pSrb,
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IN KSPIN_LOCK *SpinLock,
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IN OUT BOOL *BusyFlag,
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IN LIST_ENTRY *ListHead
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)
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{
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KIRQL Irql;
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PSRB_EXTENSION pSrbExt = (PSRB_EXTENSION)pSrb->SRBExtension;
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KeAcquireSpinLock (SpinLock, &Irql);
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// If we're already processing another SRB, add this current request
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// to the queue and return TRUE
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if (*BusyFlag == TRUE) {
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// Save the SRB pointer away in the SRB Extension
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pSrbExt->pSrb = pSrb;
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InsertTailList(ListHead, &pSrbExt->ListEntry);
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KeReleaseSpinLock(SpinLock, Irql);
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return TRUE;
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}
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// Otherwise, set the busy flag, release the spinlock, and return FALSE
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*BusyFlag = TRUE;
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KeReleaseSpinLock(SpinLock, Irql);
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return FALSE;
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}
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/*
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** RemoveFromListIfAvailable ()
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**
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** Grabs a spinlock, checks for an available SRB, and removes it from the list
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**
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** Arguments:
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**
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** &pSrb - where to return the Stream request block if available
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**
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** SpinLock - The spinlock to use
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**
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** BusyFlag - The flag to clear if the list is empty
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**
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** ListHead - The list from which an SRB will be removed if available
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**
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** Returns:
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**
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** TRUE if an SRB was removed from the list
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** FALSE if the list is empty
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**
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** Side Effects: none
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*/
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BOOL
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STREAMAPI
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RemoveFromListIfAvailable (
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IN OUT PHW_STREAM_REQUEST_BLOCK *pSrb,
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IN KSPIN_LOCK *SpinLock,
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IN OUT BOOL *BusyFlag,
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IN LIST_ENTRY *ListHead
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)
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{
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KIRQL Irql;
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KeAcquireSpinLock (SpinLock, &Irql);
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//
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// If the queue is now empty, clear the busy flag, and return
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//
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if (IsListEmpty(ListHead)) {
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*BusyFlag = FALSE;
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KeReleaseSpinLock(SpinLock, Irql);
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return FALSE;
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}
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//
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// otherwise extract the SRB
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//
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else {
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PUCHAR ptr;
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PSRB_EXTENSION pSrbExt;
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ptr = (PUCHAR)RemoveHeadList(ListHead);
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*BusyFlag = TRUE;
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KeReleaseSpinLock(SpinLock, Irql);
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// Get the SRB out of the SRB extension and return it
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pSrbExt = (PSRB_EXTENSION) (((PUCHAR) ptr) -
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FIELDOFFSET(SRB_EXTENSION, ListEntry));
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*pSrb = pSrbExt->pSrb;
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}
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return TRUE;
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}
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//==========================================================================;
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// Routines for managing the SRB queue on a per stream basis
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//==========================================================================;
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/*
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** VideoQueueAddSRB ()
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**
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** Adds a stream data SRB to a stream queue. The queue is maintained in a
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** first in, first out order.
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**
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** Arguments:
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**
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** pSrb - Stream request block for the Video stream
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**
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** Returns: nothing
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**
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** Side Effects: none
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*/
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VOID
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STREAMAPI
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VideoQueueAddSRB (
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IN PHW_STREAM_REQUEST_BLOCK pSrb
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)
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{
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PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
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PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
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int StreamNumber = pSrb->StreamObject->StreamNumber;
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KIRQL oldIrql;
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KeAcquireSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], &oldIrql);
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// Save the SRB pointer in the IRP so we can use the IRPs
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// ListEntry to maintain a doubly linked list of pending
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// requests
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pSrb->Irp->Tail.Overlay.DriverContext[0] = pSrb;
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InsertTailList (
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&pHwDevExt->StreamSRBList[StreamNumber],
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&pSrb->Irp->Tail.Overlay.ListEntry);
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// Increment the count of outstanding SRBs in this queue
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pHwDevExt->StreamSRBListSize[StreamNumber]++;
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KeReleaseSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], oldIrql);
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}
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/*
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** VideoQueueRemoveSRB ()
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**
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** Removes a stream data SRB from a stream queue
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**
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** Arguments:
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**
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** pHwDevExt - Device Extension
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**
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** StreamNumber - Index of the stream
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**
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** Returns: SRB or NULL
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**
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** Side Effects: none
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*/
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PHW_STREAM_REQUEST_BLOCK
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STREAMAPI
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VideoQueueRemoveSRB (
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PHW_DEVICE_EXTENSION pHwDevExt,
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int StreamNumber
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)
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{
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PUCHAR ptr;
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PIRP pIrp;
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PHW_STREAM_REQUEST_BLOCK pSrb = NULL;
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KIRQL oldIrql;
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KeAcquireSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], &oldIrql);
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//
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// Get the SRB out of the IRP out of the pending list
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//
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if (!IsListEmpty (&pHwDevExt->StreamSRBList[StreamNumber])) {
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ptr = (PUCHAR) RemoveHeadList(
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&pHwDevExt->StreamSRBList[StreamNumber]);
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pIrp = (PIRP) (((PUCHAR) ptr) -
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FIELDOFFSET(IRP, Tail.Overlay.ListEntry));
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pSrb = (PHW_STREAM_REQUEST_BLOCK) pIrp->Tail.Overlay.DriverContext[0];
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// Decrement the count of SRBs in this queue
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pHwDevExt->StreamSRBListSize[StreamNumber]--;
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}
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KeReleaseSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], oldIrql);
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return pSrb;
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}
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/*
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** VideoQueueCancelAllSRBs()
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**
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** In case of a client crash, this empties the stream queue when the stream closes
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**
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** Arguments:
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**
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** pStrmEx - pointer to the stream extension
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**
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** Returns:
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**
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** Side Effects: none
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*/
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VOID
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STREAMAPI
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VideoQueueCancelAllSRBs (
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PSTREAMEX pStrmEx
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)
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{
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PHW_DEVICE_EXTENSION pHwDevExt = (PHW_DEVICE_EXTENSION)pStrmEx->pHwDevExt;
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int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
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PUCHAR ptr;
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PIRP pIrp;
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PHW_STREAM_REQUEST_BLOCK pSrb;
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KIRQL oldIrql;
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if (pStrmEx->KSState != KSSTATE_STOP) {
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DbgLogInfo(("TestCap: VideoQueueCancelAllSRBs without being in the stopped state\n"));
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// May need to force the device to a stopped state here
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// may need to disable interrupts here !
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}
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//
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// The stream class will cancel all outstanding IRPs for us
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// (but only if we've set TurnOffSynchronization = FALSE)
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//
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KeAcquireSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], &oldIrql);
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//
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// Get the SRB out of the IRP out of the pending list
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//
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while (!IsListEmpty (&pHwDevExt->StreamSRBList[StreamNumber])) {
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ptr = (PUCHAR) RemoveHeadList(
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&pHwDevExt->StreamSRBList[StreamNumber]);
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pIrp = (PIRP) (((PUCHAR) ptr) -
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FIELDOFFSET(IRP, Tail.Overlay.ListEntry));
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pSrb = (PHW_STREAM_REQUEST_BLOCK) pIrp->Tail.Overlay.DriverContext[0];
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// Decrement the count of SRBs in this queue
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pHwDevExt->StreamSRBListSize[StreamNumber]--;
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//
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// Make the length zero, and status cancelled
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//
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pSrb->CommandData.DataBufferArray->DataUsed = 0;
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pSrb->Status = STATUS_CANCELLED;
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DbgLogInfo(("TestCap: VideoQueueCancelALLSRBs FOUND Srb=%p, Stream=%d\n", pSrb, StreamNumber));
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CompleteStreamSRB (pSrb);
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}
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KeReleaseSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], oldIrql);
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DbgLogInfo(("TestCap: VideoQueueCancelAll Completed\n"));
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}
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/*
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** VideoQueueCancelOneSRB()
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**
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** Called when cancelling a particular SRB
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**
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** Arguments:
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**
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** pStrmEx - pointer to the stream extension
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**
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** pSRBToCancel - pointer to the SRB
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**
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** Returns:
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**
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** TRUE if the SRB was found in this queue
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**
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** Side Effects: none
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*/
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BOOL
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STREAMAPI
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VideoQueueCancelOneSRB (
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PSTREAMEX pStrmEx,
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PHW_STREAM_REQUEST_BLOCK pSrbToCancel
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)
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{
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PHW_DEVICE_EXTENSION pHwDevExt = (PHW_DEVICE_EXTENSION)pStrmEx->pHwDevExt;
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int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
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KIRQL oldIrql;
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BOOL Found = FALSE;
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PIRP pIrp;
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PHW_STREAM_REQUEST_BLOCK pSrb;
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PLIST_ENTRY Entry;
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KeAcquireSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], &oldIrql);
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Entry = pHwDevExt->StreamSRBList[StreamNumber].Flink;
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//
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// Loop through the linked list from the beginning to end,
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// trying to find the SRB to cancel
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//
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while (Entry != &pHwDevExt->StreamSRBList[StreamNumber]) {
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pIrp = (PIRP) (((PUCHAR) Entry) -
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FIELDOFFSET(IRP, Tail.Overlay.ListEntry));
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pSrb = (PHW_STREAM_REQUEST_BLOCK) pIrp->Tail.Overlay.DriverContext[0];
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if (pSrb == pSrbToCancel) {
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RemoveEntryList(Entry);
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Found = TRUE;
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break;
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}
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Entry = Entry->Flink;
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}
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KeReleaseSpinLock (&pHwDevExt->StreamSRBSpinLock[StreamNumber], oldIrql);
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if (Found) {
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pHwDevExt->StreamSRBListSize[StreamNumber]--;
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//
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// Make the length zero, and status cancelled
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//
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pSrbToCancel->CommandData.DataBufferArray->DataUsed = 0;
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pSrbToCancel->Status = STATUS_CANCELLED;
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CompleteStreamSRB (pSrbToCancel);
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DbgLogInfo(("TestCap: VideoQueueCancelOneSRB FOUND Srb=%p, Stream=%d\n", pSrb, StreamNumber));
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}
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DbgLogInfo(("TestCap: VideoQueueCancelOneSRB Completed Stream=%d\n", StreamNumber));
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return Found;
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}
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/*
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** VideoSetFormat()
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**
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** Sets the format for a video stream. This happens both when the
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** stream is first opened, and also when dynamically switching formats
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** on the preview pin.
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**
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** It is assumed that the format has been verified for correctness before
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** this call is made.
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**
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** Arguments:
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**
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** pSrb - Stream request block for the Video stream
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**
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** Returns:
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**
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** TRUE if the format could be set, else FALSE
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**
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** Side Effects: none
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*/
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BOOL
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STREAMAPI
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VideoSetFormat(
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IN PHW_STREAM_REQUEST_BLOCK pSrb
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)
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{
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PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
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PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
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int StreamNumber = pSrb->StreamObject->StreamNumber;
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UINT nSize;
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PKSDATAFORMAT pKSDataFormat = pSrb->CommandData.OpenFormat;
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// -------------------------------------------------------------------
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// Specifier FORMAT_VideoInfo for VIDEOINFOHEADER
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// -------------------------------------------------------------------
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if (IsEqualGUID (&pKSDataFormat->Specifier,
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&KSDATAFORMAT_SPECIFIER_VIDEOINFO)) {
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PKS_DATAFORMAT_VIDEOINFOHEADER pVideoInfoHeader =
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(PKS_DATAFORMAT_VIDEOINFOHEADER) pSrb->CommandData.OpenFormat;
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PKS_VIDEOINFOHEADER pVideoInfoHdrRequested =
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&pVideoInfoHeader->VideoInfoHeader;
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nSize = KS_SIZE_VIDEOHEADER (pVideoInfoHdrRequested);
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DbgLogInfo(("TestCap: New Format\n"));
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DbgLogInfo(("TestCap: pVideoInfoHdrRequested=%p\n", pVideoInfoHdrRequested));
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DbgLogInfo(("TestCap: KS_VIDEOINFOHEADER size=%d\n", nSize));
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DbgLogInfo(("TestCap: Width=%d Height=%d BitCount=%d\n",
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pVideoInfoHdrRequested->bmiHeader.biWidth,
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pVideoInfoHdrRequested->bmiHeader.biHeight,
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pVideoInfoHdrRequested->bmiHeader.biBitCount));
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DbgLogInfo(("TestCap: biSizeImage=%d\n",
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pVideoInfoHdrRequested->bmiHeader.biSizeImage));
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//
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// If a previous format was in use, release the memory
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//
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if (pStrmEx->pVideoInfoHeader) {
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ExFreePool(pStrmEx->pVideoInfoHeader);
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pStrmEx->pVideoInfoHeader = NULL;
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}
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// Since the VIDEOINFOHEADER is of potentially variable size
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// allocate memory for it
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pStrmEx->pVideoInfoHeader = ExAllocatePool(NonPagedPool, nSize);
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if (pStrmEx->pVideoInfoHeader == NULL) {
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DbgLogError(("TestCap: ExAllocatePool failed\n"));
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pSrb->Status = STATUS_INSUFFICIENT_RESOURCES;
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return FALSE;
|
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}
|
|
|
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// Copy the VIDEOINFOHEADER requested to our storage
|
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RtlCopyMemory(
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pStrmEx->pVideoInfoHeader,
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pVideoInfoHdrRequested,
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nSize);
|
|
|
|
// A renderer may be switching formats, and in this case, the AvgTimePerFrame
|
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// will be zero. Don't overwrite a previously set framerate.
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if (pStrmEx->pVideoInfoHeader->AvgTimePerFrame) {
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pStrmEx->AvgTimePerFrame = pStrmEx->pVideoInfoHeader->AvgTimePerFrame;
|
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}
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}
|
|
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// -------------------------------------------------------------------
|
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// Specifier FORMAT_AnalogVideo for KS_ANALOGVIDEOINFO
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// -------------------------------------------------------------------
|
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else if (IsEqualGUID (&pKSDataFormat->Specifier,
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&KSDATAFORMAT_SPECIFIER_ANALOGVIDEO)) {
|
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|
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//
|
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// AnalogVideo DataRange == DataFormat!
|
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//
|
|
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//
|
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// For now, don't even cache this
|
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//
|
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PKS_DATARANGE_ANALOGVIDEO pDataFormatAnalogVideo =
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(PKS_DATARANGE_ANALOGVIDEO) pSrb->CommandData.OpenFormat;
|
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}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Specifier FORMAT_VBI for KS_VIDEO_VBI
|
|
// -------------------------------------------------------------------
|
|
else if (IsEqualGUID (&pKSDataFormat->Specifier,
|
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&KSDATAFORMAT_SPECIFIER_VBI))
|
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{
|
|
// On a VBI stream, we save a pointer to StreamFormatVBI, which
|
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// has the timing info we want to get at later.
|
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pStrmEx->pVBIStreamFormat = &StreamFormatVBI;
|
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}
|
|
|
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// -------------------------------------------------------------------
|
|
// Type FORMAT_NABTS for NABTS pin
|
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// -------------------------------------------------------------------
|
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else if (IsEqualGUID (&pKSDataFormat->SubFormat,
|
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&KSDATAFORMAT_SUBTYPE_NABTS))
|
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{
|
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// On a VBI stream, we save a pointer to StreamFormatVBI, which
|
|
// has the timing info we want to get at later. (Even though
|
|
// this is really a StreamFormatNABTS pin)
|
|
pStrmEx->pVBIStreamFormat = &StreamFormatVBI;
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// for CC pin
|
|
// -------------------------------------------------------------------
|
|
else if (IsEqualGUID (&pKSDataFormat->SubFormat,
|
|
&KSDATAFORMAT_SUBTYPE_CC))
|
|
{
|
|
// On a VBI stream, we save a pointer to StreamFormatVBI, which
|
|
// has the timing info we want to get at later. (Even though
|
|
// this is really a StreamFormatCC pin)
|
|
pStrmEx->pVBIStreamFormat = &StreamFormatVBI;
|
|
}
|
|
|
|
else {
|
|
// Unknown format
|
|
pSrb->Status = STATUS_INVALID_PARAMETER;
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
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|
|
/*
|
|
** VideoReceiveDataPacket()
|
|
**
|
|
** Receives Video data packet commands on the output streams
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - Stream request block for the Video stream
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoReceiveDataPacket(
|
|
IN PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
int StreamNumber = pSrb->StreamObject->StreamNumber;
|
|
|
|
//
|
|
// make sure we have a device extension and are at passive level
|
|
//
|
|
|
|
DEBUG_ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
|
|
DEBUG_ASSERT(pHwDevExt!=NULL);
|
|
|
|
DbgLogTrace(("TestCap: Receiving Stream Data SRB %p, %x\n", pSrb, pSrb->Command));
|
|
|
|
//
|
|
// Default to success
|
|
//
|
|
|
|
pSrb->Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// determine the type of packet.
|
|
//
|
|
|
|
switch (pSrb->Command){
|
|
|
|
case SRB_READ_DATA:
|
|
|
|
// Rule:
|
|
// Only accept read requests when in either the Pause or Run
|
|
// States. If Stopped, immediately return the SRB.
|
|
|
|
if (pStrmEx->KSState == KSSTATE_STOP) {
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Put this read request on the pending queue
|
|
//
|
|
|
|
VideoQueueAddSRB (pSrb);
|
|
|
|
// Since another thread COULD HAVE MODIFIED THE STREAM STATE
|
|
// in the midst of adding it to the queue, check the stream
|
|
// state again, and cancel the SRB if necessary. Note that
|
|
// this race condition was NOT handled in the original DDK
|
|
// release of testcap!
|
|
|
|
if (pStrmEx->KSState == KSSTATE_STOP) {
|
|
|
|
VideoQueueCancelOneSRB (
|
|
pStrmEx,
|
|
pSrb);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
//
|
|
// invalid / unsupported command. Fail it as such
|
|
//
|
|
|
|
TRAP;
|
|
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
} // switch (pSrb->Command)
|
|
}
|
|
|
|
|
|
/*
|
|
** VideoReceiveCtrlPacket()
|
|
**
|
|
** Receives packet commands that control the Video output streams
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - The stream request block for the Video stream
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoReceiveCtrlPacket(
|
|
IN PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
|
|
BOOL Busy;
|
|
|
|
//
|
|
// make sure we have a device extension and are at passive level
|
|
//
|
|
|
|
DEBUG_ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
|
|
DEBUG_ASSERT(pHwDevExt!=NULL);
|
|
|
|
DbgLogTrace(("TestCap: Receiving Stream Control SRB %p, %x\n", pSrb, pSrb->Command));
|
|
|
|
//
|
|
// If we're already processing an SRB, add it to the queue
|
|
//
|
|
Busy = AddToListIfBusy (
|
|
pSrb,
|
|
&pHwDevExt->AdapterSpinLock,
|
|
&pHwDevExt->ProcessingControlSRB [StreamNumber],
|
|
&pHwDevExt->StreamControlSRBList[StreamNumber]);
|
|
|
|
if (Busy) {
|
|
return;
|
|
}
|
|
|
|
while (TRUE) {
|
|
|
|
//
|
|
// Default to success
|
|
//
|
|
|
|
pSrb->Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// determine the type of packet.
|
|
//
|
|
|
|
switch (pSrb->Command)
|
|
{
|
|
|
|
case SRB_PROPOSE_DATA_FORMAT:
|
|
DbgLogInfo(("TestCap: Receiving SRB_PROPOSE_DATA_FORMAT SRB %p, StreamNumber= %d\n", pSrb, StreamNumber));
|
|
if (!(AdapterVerifyFormat (
|
|
pSrb->CommandData.OpenFormat,
|
|
pSrb->StreamObject->StreamNumber))) {
|
|
pSrb->Status = STATUS_NO_MATCH;
|
|
DbgLogInfo(("TestCap: SRB_PROPOSE_DATA_FORMAT FAILED\n"));
|
|
}
|
|
// KS support for dynamic format changes is BROKEN right now,
|
|
// so we prevent these from happening by saying they ALL fail.
|
|
// If this is ever fixed, the next line must be removed.
|
|
pSrb->Status = STATUS_NO_MATCH; // prevent dynamic format changes
|
|
break;
|
|
|
|
case SRB_SET_DATA_FORMAT:
|
|
DbgLogInfo(("TestCap: SRB_SET_DATA_FORMAT\n"));
|
|
if (!(AdapterVerifyFormat (
|
|
pSrb->CommandData.OpenFormat,
|
|
pSrb->StreamObject->StreamNumber))) {
|
|
pSrb->Status = STATUS_NO_MATCH;
|
|
DbgLogInfo(("TestCap: SRB_SET_DATA_FORMAT FAILED\n"));
|
|
} else {
|
|
VideoSetFormat (pSrb);
|
|
DbgLogInfo(("TestCap: SRB_SET_DATA_FORMAT SUCCEEDED\n"));
|
|
}
|
|
|
|
break;
|
|
|
|
case SRB_GET_DATA_FORMAT:
|
|
DbgLogInfo(("TestCap: SRB_GET_DATA_FORMAT\n"));
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
break;
|
|
|
|
|
|
case SRB_SET_STREAM_STATE:
|
|
|
|
VideoSetState(pSrb);
|
|
break;
|
|
|
|
case SRB_GET_STREAM_STATE:
|
|
|
|
VideoGetState(pSrb);
|
|
break;
|
|
|
|
case SRB_GET_STREAM_PROPERTY:
|
|
|
|
VideoGetProperty(pSrb);
|
|
break;
|
|
|
|
case SRB_SET_STREAM_PROPERTY:
|
|
|
|
VideoSetProperty(pSrb);
|
|
break;
|
|
|
|
case SRB_INDICATE_MASTER_CLOCK:
|
|
|
|
//
|
|
// Assigns a clock to a stream
|
|
//
|
|
|
|
VideoIndicateMasterClock (pSrb);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
//
|
|
// invalid / unsupported command. Fail it as such
|
|
//
|
|
|
|
TRAP;
|
|
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
//
|
|
// See if there's anything else on the queue
|
|
//
|
|
Busy = RemoveFromListIfAvailable (
|
|
&pSrb,
|
|
&pHwDevExt->AdapterSpinLock,
|
|
&pHwDevExt->ProcessingControlSRB [StreamNumber],
|
|
&pHwDevExt->StreamControlSRBList[StreamNumber]);
|
|
|
|
if (!Busy) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
** AnalogVideoReceiveDataPacket()
|
|
**
|
|
** Receives AnalogVideo data packet commands on the input stream
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - Stream request block for the Analog Video stream.
|
|
** This stream receives tuner control packets.
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
AnalogVideoReceiveDataPacket(
|
|
IN PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
PKSSTREAM_HEADER pDataPacket = pSrb->CommandData.DataBufferArray;
|
|
|
|
//
|
|
// make sure we have a device extension and are at passive level
|
|
//
|
|
|
|
DEBUG_ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
|
|
DEBUG_ASSERT(pHwDevExt!=NULL);
|
|
|
|
DbgLogInfo(("TestCap: Receiving Tuner packet SRB %p, %x\n", pSrb, pSrb->Command));
|
|
|
|
//
|
|
// Default to success
|
|
//
|
|
|
|
pSrb->Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// determine the type of packet.
|
|
//
|
|
|
|
switch (pSrb->Command){
|
|
|
|
case SRB_WRITE_DATA:
|
|
|
|
//
|
|
// This data packet contains the channel change information
|
|
// passed on the AnalogVideoIn stream. Devices which support
|
|
// VBI data streams need to pass this info on their output pins.
|
|
//
|
|
|
|
if (pDataPacket->FrameExtent == sizeof (KS_TVTUNER_CHANGE_INFO)) {
|
|
|
|
RtlCopyMemory(
|
|
&pHwDevExt->TVTunerChangeInfo,
|
|
pDataPacket->Data,
|
|
sizeof (KS_TVTUNER_CHANGE_INFO));
|
|
}
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
//
|
|
// invalid / unsupported command. Fail it as such
|
|
//
|
|
|
|
TRAP;
|
|
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
} // switch (pSrb->Command)
|
|
}
|
|
|
|
|
|
/*
|
|
** AnalogVideoReceiveCtrlPacket()
|
|
**
|
|
** Receives packet commands that control the Analog Video stream
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - The stream request block for the Video stream
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
AnalogVideoReceiveCtrlPacket(
|
|
IN PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
|
|
BOOL Busy;
|
|
|
|
//
|
|
// make sure we have a device extension and we are at passive level
|
|
//
|
|
|
|
DEBUG_ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
|
|
DEBUG_ASSERT(pHwDevExt!=NULL);
|
|
|
|
DbgLogTrace(("TestCap: Receiving Analog Stream Control SRB %p, %x\n", pSrb, pSrb->Command));
|
|
|
|
//
|
|
// If we're already processing an SRB, add it to the queue
|
|
//
|
|
Busy = AddToListIfBusy (
|
|
pSrb,
|
|
&pHwDevExt->AdapterSpinLock,
|
|
&pHwDevExt->ProcessingControlSRB [StreamNumber],
|
|
&pHwDevExt->StreamControlSRBList[StreamNumber]);
|
|
|
|
if (Busy) {
|
|
return;
|
|
}
|
|
|
|
do {
|
|
//
|
|
// Default to success
|
|
//
|
|
|
|
pSrb->Status = STATUS_SUCCESS;
|
|
|
|
//
|
|
// determine the type of packet.
|
|
//
|
|
|
|
switch (pSrb->Command)
|
|
{
|
|
|
|
case SRB_PROPOSE_DATA_FORMAT:
|
|
DbgLogInfo(("TestCap: Receiving SRB_PROPOSE_DATA_FORMAT SRB %p, StreamNumber= %d\n", pSrb, StreamNumber));
|
|
|
|
if (!(AdapterVerifyFormat (
|
|
pSrb->CommandData.OpenFormat,
|
|
pSrb->StreamObject->StreamNumber))) {
|
|
pSrb->Status = STATUS_NO_MATCH;
|
|
}
|
|
break;
|
|
|
|
case SRB_SET_STREAM_STATE:
|
|
|
|
//
|
|
// Don't use VideoSetState, since we don't want to start another
|
|
// timer running
|
|
//
|
|
|
|
pStrmEx->KSState = pSrb->CommandData.StreamState;
|
|
DbgLogInfo(("TestCap: STATE=%d, Stream=%d\n", pStrmEx->KSState, StreamNumber));
|
|
break;
|
|
|
|
case SRB_GET_STREAM_STATE:
|
|
|
|
VideoGetState(pSrb);
|
|
break;
|
|
|
|
case SRB_GET_STREAM_PROPERTY:
|
|
|
|
VideoGetProperty(pSrb);
|
|
break;
|
|
|
|
case SRB_INDICATE_MASTER_CLOCK:
|
|
|
|
//
|
|
// Assigns a clock to a stream
|
|
//
|
|
|
|
VideoIndicateMasterClock (pSrb);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
//
|
|
// invalid / unsupported command. Fail it as such
|
|
//
|
|
|
|
TRAP;
|
|
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
//
|
|
// See if there's anything else on the queue
|
|
//
|
|
Busy = RemoveFromListIfAvailable (
|
|
&pSrb,
|
|
&pHwDevExt->AdapterSpinLock,
|
|
&pHwDevExt->ProcessingControlSRB [StreamNumber],
|
|
&pHwDevExt->StreamControlSRBList[StreamNumber]);
|
|
|
|
} while ( Busy );
|
|
}
|
|
|
|
|
|
/*
|
|
** CompleteStreamSRB ()
|
|
**
|
|
** This routine is called when a packet is being completed.
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the request packet to be completed
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
CompleteStreamSRB (
|
|
IN PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
DbgLogTrace(("TestCap: Completing Stream SRB %p\n", pSrb));
|
|
|
|
StreamClassStreamNotification(
|
|
StreamRequestComplete,
|
|
pSrb->StreamObject,
|
|
pSrb);
|
|
}
|
|
|
|
|
|
/*
|
|
** VideoGetProperty()
|
|
**
|
|
** Routine to process video property requests
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoGetProperty(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
|
|
|
|
if (IsEqualGUID (&KSPROPSETID_Connection, &pSPD->Property->Set)) {
|
|
VideoStreamGetConnectionProperty (pSrb);
|
|
}
|
|
else if (IsEqualGUID (&PROPSETID_VIDCAP_DROPPEDFRAMES, &pSPD->Property->Set)) {
|
|
VideoStreamGetDroppedFramesProperty (pSrb);
|
|
}
|
|
else {
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** VideoSetProperty()
|
|
**
|
|
** Routine to process video property requests
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoSetProperty(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
// PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
|
|
|
|
pSrb->Status = STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
** VideoTimerRoutine()
|
|
**
|
|
** A timer has been created based on the requested capture interval.
|
|
** This is the callback routine for this timer event.
|
|
**
|
|
** Note: Devices capable of using interrupts should always
|
|
** trigger capture on a VSYNC interrupt, and not use a timer.
|
|
**
|
|
** Arguments:
|
|
**
|
|
** Context - pointer to the stream extension
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoTimerRoutine(
|
|
PVOID Context
|
|
)
|
|
{
|
|
PSTREAMEX pStrmEx = ((PSTREAMEX)Context);
|
|
PHW_DEVICE_EXTENSION pHwDevExt = pStrmEx->pHwDevExt;
|
|
int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
|
|
|
|
// If we're stopped and the timer is still running, just return.
|
|
// This will stop the timer.
|
|
|
|
if (pStrmEx->KSState == KSSTATE_STOP) {
|
|
return;
|
|
}
|
|
|
|
// Capture a frame if it's time and we have a buffer
|
|
|
|
VideoCaptureRoutine(pStrmEx);
|
|
|
|
// Schedule the next timer event
|
|
// Make it run at 2x the requested capture rate (which is in 100nS units)
|
|
|
|
StreamClassScheduleTimer (
|
|
pStrmEx->pStreamObject, // StreamObject
|
|
pHwDevExt, // HwDeviceExtension
|
|
(ULONG) (pStrmEx->AvgTimePerFrame / 20), // Microseconds
|
|
VideoTimerRoutine, // TimerRoutine
|
|
pStrmEx); // Context
|
|
}
|
|
|
|
|
|
/*
|
|
** VideoCaptureRoutine()
|
|
**
|
|
** Routine to capture video frames based on a timer.
|
|
**
|
|
** Note: Devices capable of using interrupts should always
|
|
** trigger capture on a VSYNC interrupt, and not use a timer.
|
|
**
|
|
** Arguments:
|
|
**
|
|
** Returns: nothing
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoCaptureRoutine(
|
|
IN PSTREAMEX pStrmEx
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = pStrmEx->pHwDevExt;
|
|
int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
|
|
PKSSTREAM_HEADER pDataPacket;
|
|
PKS_FRAME_INFO pFrameInfo;
|
|
|
|
// If we're stopped and the timer is still running, just return.
|
|
// This will stop the timer.
|
|
|
|
if (pStrmEx->KSState == KSSTATE_STOP) {
|
|
return;
|
|
}
|
|
|
|
|
|
// Find out what time it is, if we're using a clock
|
|
|
|
if (pStrmEx->hMasterClock ) {
|
|
HW_TIME_CONTEXT TimeContext;
|
|
|
|
TimeContext.HwDeviceExtension = pHwDevExt;
|
|
TimeContext.HwStreamObject = pStrmEx->pStreamObject;
|
|
TimeContext.Function = TIME_GET_STREAM_TIME;
|
|
|
|
StreamClassQueryMasterClockSync (
|
|
pStrmEx->hMasterClock,
|
|
&TimeContext);
|
|
|
|
pStrmEx->QST_StreamTime = TimeContext.Time;
|
|
pStrmEx->QST_Now = TimeContext.SystemTime;
|
|
|
|
if (pStrmEx->QST_NextFrame == 0) {
|
|
pStrmEx->QST_NextFrame = pStrmEx->QST_StreamTime + pStrmEx->AvgTimePerFrame;
|
|
}
|
|
|
|
#ifdef CREATE_A_FLURRY_OF_TIMING_SPEW
|
|
DbgLogTrace(("TestCap: Time=%6d mS at SystemTime=%I64d\n",
|
|
(LONG) ((LONGLONG) TimeContext.Time / 10000),
|
|
TimeContext.SystemTime));
|
|
#endif
|
|
}
|
|
|
|
|
|
// Only capture in the RUN state
|
|
|
|
if (pStrmEx->KSState == KSSTATE_RUN) {
|
|
|
|
//
|
|
// Determine if it is time to capture a frame based on
|
|
// how much time has elapsed since capture started.
|
|
// If there isn't a clock available, then capture immediately.
|
|
//
|
|
|
|
if ((!pStrmEx->hMasterClock) ||
|
|
(pStrmEx->QST_StreamTime >= pStrmEx->QST_NextFrame)) {
|
|
|
|
PHW_STREAM_REQUEST_BLOCK pSrb;
|
|
|
|
// Increment the picture count (usually this is VSYNC count)
|
|
|
|
pStrmEx->FrameInfo.PictureNumber++;
|
|
|
|
//
|
|
// Get the next queue SRB (if any)
|
|
//
|
|
|
|
pSrb = VideoQueueRemoveSRB (
|
|
pHwDevExt,
|
|
StreamNumber);
|
|
|
|
if (pSrb) {
|
|
|
|
pDataPacket = pSrb->CommandData.DataBufferArray;
|
|
pFrameInfo = (PKS_FRAME_INFO) (pDataPacket + 1);
|
|
|
|
//
|
|
// Call the routine which synthesizes images
|
|
//
|
|
|
|
ImageSynth (pSrb,
|
|
pHwDevExt->VideoInputConnected,
|
|
pStrmEx->VideoControlMode & KS_VideoControlFlag_FlipHorizontal);
|
|
|
|
// Set additional info fields about the data captured such as:
|
|
// Frames Captured
|
|
// Frames Dropped
|
|
// Field Polarity
|
|
|
|
pStrmEx->FrameInfo.ExtendedHeaderSize = pFrameInfo->ExtendedHeaderSize;
|
|
|
|
*pFrameInfo = pStrmEx->FrameInfo;
|
|
|
|
// Init the flags to zero
|
|
pDataPacket->OptionsFlags = 0;
|
|
|
|
// Set the discontinuity flag if frames have been previously
|
|
// dropped, and then reset our internal flag
|
|
|
|
if (pStrmEx->fDiscontinuity) {
|
|
pDataPacket->OptionsFlags |= KSSTREAM_HEADER_OPTIONSF_DATADISCONTINUITY;
|
|
pStrmEx->fDiscontinuity = FALSE;
|
|
}
|
|
|
|
//
|
|
// Return the timestamp for the frame
|
|
//
|
|
pDataPacket->PresentationTime.Numerator = 1;
|
|
pDataPacket->PresentationTime.Denominator = 1;
|
|
pDataPacket->Duration = pStrmEx->AvgTimePerFrame;
|
|
|
|
//
|
|
// if we have a master clock AND this is the capture stream
|
|
//
|
|
if (pStrmEx->hMasterClock && (StreamNumber == 0)) {
|
|
|
|
pDataPacket->PresentationTime.Time = pStrmEx->QST_StreamTime;
|
|
pDataPacket->OptionsFlags |=
|
|
KSSTREAM_HEADER_OPTIONSF_TIMEVALID |
|
|
KSSTREAM_HEADER_OPTIONSF_DURATIONVALID;
|
|
}
|
|
else {
|
|
//
|
|
// no clock or the preview stream, so just mark the time as unknown
|
|
//
|
|
pDataPacket->PresentationTime.Time = 0;
|
|
// clear the timestamp valid flags
|
|
pDataPacket->OptionsFlags &=
|
|
~(KSSTREAM_HEADER_OPTIONSF_TIMEVALID |
|
|
KSSTREAM_HEADER_OPTIONSF_DURATIONVALID);
|
|
}
|
|
|
|
// Every frame we generate is a key frame (aka SplicePoint)
|
|
// Delta frames (B or P) should not set this flag
|
|
|
|
pDataPacket->OptionsFlags |= KSSTREAM_HEADER_OPTIONSF_SPLICEPOINT;
|
|
|
|
// Output a frame count every 100th frame in Debug mode
|
|
if (pStrmEx->FrameInfo.PictureNumber % 100 == 0) {
|
|
DbgLogInfo(("TestCap: Picture %u, Stream=%d\n",
|
|
(unsigned int)pStrmEx->FrameInfo.PictureNumber,
|
|
StreamNumber));
|
|
}
|
|
|
|
CompleteStreamSRB (pSrb);
|
|
|
|
} // if we have an SRB
|
|
|
|
else {
|
|
|
|
//
|
|
// No buffer was available when we should have captured one
|
|
|
|
// Increment the counter which keeps track of
|
|
// dropped frames
|
|
|
|
pStrmEx->FrameInfo.DropCount++;
|
|
|
|
// Set the (local) discontinuity flag
|
|
// This will cause the next packet processed to have the
|
|
// KSSTREAM_HEADER_OPTIONSF_DATADISCONTINUITY flag set.
|
|
|
|
pStrmEx->fDiscontinuity = TRUE;
|
|
|
|
}
|
|
|
|
// Figure out when to capture the next frame
|
|
pStrmEx->QST_NextFrame += pStrmEx->AvgTimePerFrame;
|
|
|
|
} // endif time to capture a frame
|
|
} // endif we're running
|
|
}
|
|
|
|
|
|
/*
|
|
** VideoSetState()
|
|
**
|
|
** Sets the current state for a given stream
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoSetState(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
int StreamNumber = pStrmEx->pStreamObject->StreamNumber;
|
|
KSSTATE PreviousState;
|
|
|
|
//
|
|
// For each stream, the following states are used:
|
|
//
|
|
// Stop: Absolute minimum resources are used. No outstanding IRPs.
|
|
// Acquire: KS only state that has no DirectShow correpondence
|
|
// Acquire needed resources.
|
|
// Pause: Getting ready to run. Allocate needed resources so that
|
|
// the eventual transition to Run is as fast as possible.
|
|
// Read SRBs will be queued at either the Stream class
|
|
// or in your driver (depending on when you send "ReadyForNext")
|
|
// and whether you're using the Stream class for synchronization
|
|
// Run: Streaming.
|
|
//
|
|
// Moving to Stop to Run always transitions through Pause.
|
|
//
|
|
// But since a client app could crash unexpectedly, drivers should handle
|
|
// the situation of having outstanding IRPs cancelled and open streams
|
|
// being closed WHILE THEY ARE STREAMING!
|
|
//
|
|
// Note that it is quite possible to transition repeatedly between states:
|
|
// Stop -> Pause -> Stop -> Pause -> Run -> Pause -> Run -> Pause -> Stop
|
|
//
|
|
|
|
//
|
|
// Remember the state we're transitioning away from
|
|
//
|
|
|
|
PreviousState = pStrmEx->KSState;
|
|
|
|
//
|
|
// Set the new state
|
|
//
|
|
|
|
pStrmEx->KSState = pSrb->CommandData.StreamState;
|
|
|
|
switch (pSrb->CommandData.StreamState)
|
|
|
|
{
|
|
case KSSTATE_STOP:
|
|
|
|
//
|
|
// The stream class will cancel all outstanding IRPs for us
|
|
// (but only if it is maintaining the queue ie. using Stream Class synchronization)
|
|
// Since Testcap is not using Stream Class synchronization, we must clear the queue here
|
|
|
|
VideoQueueCancelAllSRBs (pStrmEx);
|
|
|
|
DbgLogInfo(("TestCap: STATE Stopped, Stream=%d\n", StreamNumber));
|
|
break;
|
|
|
|
case KSSTATE_ACQUIRE:
|
|
|
|
//
|
|
// This is a KS only state, that has no correspondence in DirectShow
|
|
//
|
|
DbgLogInfo(("TestCap: STATE Acquire, Stream=%d\n", StreamNumber));
|
|
break;
|
|
|
|
case KSSTATE_PAUSE:
|
|
|
|
//
|
|
// On a transition to pause from acquire or stop, start our timer running.
|
|
//
|
|
|
|
if (PreviousState == KSSTATE_ACQUIRE || PreviousState == KSSTATE_STOP) {
|
|
|
|
// Zero the frame counters
|
|
pStrmEx->FrameInfo.PictureNumber = 0;
|
|
pStrmEx->FrameInfo.DropCount = 0;
|
|
pStrmEx->FrameInfo.dwFrameFlags = 0;
|
|
|
|
// Setup the next timer callback(s)
|
|
VideoTimerRoutine(pStrmEx);
|
|
}
|
|
DbgLogInfo(("TestCap: STATE Pause, Stream=%d\n", StreamNumber));
|
|
break;
|
|
|
|
case KSSTATE_RUN:
|
|
|
|
//
|
|
// Begin Streaming.
|
|
//
|
|
|
|
// Reset the discontinuity flag
|
|
|
|
pStrmEx->fDiscontinuity = FALSE;
|
|
|
|
// Setting the NextFrame time to zero will cause the value to be
|
|
// reset from the stream time
|
|
|
|
pStrmEx->QST_NextFrame = 0;
|
|
|
|
DbgLogInfo(("TestCap: STATE Run, Stream=%d\n", StreamNumber));
|
|
break;
|
|
|
|
} // end switch (pSrb->CommandData.StreamState)
|
|
}
|
|
|
|
/*
|
|
** VideoGetState()
|
|
**
|
|
** Gets the current state of the requested stream
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoGetState(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
|
|
pSrb->CommandData.StreamState = pStrmEx->KSState;
|
|
pSrb->ActualBytesTransferred = sizeof (KSSTATE);
|
|
|
|
// A very odd rule:
|
|
// When transitioning from stop to pause, DShow tries to preroll
|
|
// the graph. Capture sources can't preroll, and indicate this
|
|
// by returning VFW_S_CANT_CUE in user mode. To indicate this
|
|
// condition from drivers, they must return STATUS_NO_DATA_DETECTED
|
|
|
|
if (pStrmEx->KSState == KSSTATE_PAUSE) {
|
|
pSrb->Status = STATUS_NO_DATA_DETECTED;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
** VideoStreamGetConnectionProperty()
|
|
**
|
|
** Gets the properties for a stream
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoStreamGetConnectionProperty(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
|
|
ULONG Id = pSPD->Property->Id; // index of the property
|
|
int streamNumber = (int)pSrb->StreamObject->StreamNumber;
|
|
|
|
switch (Id) {
|
|
// This property describes the allocator requirements for the stream
|
|
case KSPROPERTY_CONNECTION_ALLOCATORFRAMING:
|
|
{
|
|
PKSALLOCATOR_FRAMING Framing =
|
|
(PKSALLOCATOR_FRAMING) pSPD->PropertyInfo;
|
|
Framing->RequirementsFlags =
|
|
KSALLOCATOR_REQUIREMENTF_SYSTEM_MEMORY |
|
|
KSALLOCATOR_REQUIREMENTF_INPLACE_MODIFIER |
|
|
KSALLOCATOR_REQUIREMENTF_PREFERENCES_ONLY;
|
|
Framing->PoolType = PagedPool;
|
|
Framing->FileAlignment = 0; // FILE_LONG_ALIGNMENT???;
|
|
Framing->Reserved = 0;
|
|
pSrb->ActualBytesTransferred = sizeof (KSALLOCATOR_FRAMING);
|
|
|
|
switch (streamNumber) {
|
|
case STREAM_Capture:
|
|
case STREAM_Preview:
|
|
Framing->Frames = 2;
|
|
Framing->FrameSize =
|
|
pStrmEx->pVideoInfoHeader->bmiHeader.biSizeImage;
|
|
break;
|
|
|
|
case STREAM_VBI:
|
|
Framing->Frames = 8;
|
|
Framing->FrameSize = StreamFormatVBI.DataRange.SampleSize;
|
|
break;
|
|
|
|
case STREAM_CC:
|
|
Framing->Frames = 100;
|
|
Framing->FrameSize = StreamFormatCC.SampleSize;
|
|
break;
|
|
|
|
case STREAM_NABTS:
|
|
Framing->Frames = 20;
|
|
Framing->FrameSize = StreamFormatNABTS.SampleSize;
|
|
break;
|
|
|
|
case STREAM_AnalogVideoInput:
|
|
default:
|
|
pSrb->Status = STATUS_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
TRAP;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** VideoStreamGetDroppedFramesProperty()
|
|
**
|
|
** Gets dynamic information about the progress of the capture process.
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoStreamGetDroppedFramesProperty(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
|
|
ULONG Id = pSPD->Property->Id; // index of the property
|
|
|
|
switch (Id) {
|
|
|
|
case KSPROPERTY_DROPPEDFRAMES_CURRENT:
|
|
{
|
|
PKSPROPERTY_DROPPEDFRAMES_CURRENT_S pDroppedFrames =
|
|
(PKSPROPERTY_DROPPEDFRAMES_CURRENT_S) pSPD->PropertyInfo;
|
|
|
|
pDroppedFrames->PictureNumber = pStrmEx->FrameInfo.PictureNumber;
|
|
pDroppedFrames->DropCount = pStrmEx->FrameInfo.DropCount;
|
|
pDroppedFrames->AverageFrameSize = pStrmEx->pVideoInfoHeader->bmiHeader.biSizeImage;
|
|
|
|
pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_DROPPEDFRAMES_CURRENT_S);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
TRAP;
|
|
break;
|
|
}
|
|
}
|
|
|
|
//==========================================================================;
|
|
// Clock Handling Routines
|
|
//==========================================================================;
|
|
|
|
|
|
/*
|
|
** VideoIndicateMasterClock ()
|
|
**
|
|
** If this stream is not being used as the master clock, this function
|
|
** is used to provide us with a handle to the clock to use when
|
|
** requesting the current stream time.
|
|
**
|
|
** Arguments:
|
|
**
|
|
** pSrb - pointer to the stream request block for properties
|
|
**
|
|
** Returns:
|
|
**
|
|
** Side Effects: none
|
|
*/
|
|
|
|
VOID
|
|
STREAMAPI
|
|
VideoIndicateMasterClock(
|
|
PHW_STREAM_REQUEST_BLOCK pSrb
|
|
)
|
|
{
|
|
PSTREAMEX pStrmEx = (PSTREAMEX)pSrb->StreamObject->HwStreamExtension;
|
|
|
|
pStrmEx->hMasterClock = pSrb->CommandData.MasterClockHandle;
|
|
}
|
|
|
|
|