116 lines
4.5 KiB
C++
116 lines
4.5 KiB
C++
//==========================================================================;
|
|
//
|
|
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
|
|
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
|
|
// PURPOSE.
|
|
//
|
|
// Copyright (c) 1997 Microsoft Corporation. All Rights Reserved.
|
|
//
|
|
//
|
|
// History:
|
|
// 22-Aug-97 TKB Created Initial Interface Version
|
|
//
|
|
//==========================================================================;
|
|
|
|
#ifndef __CCDECODE_H
|
|
#define __CCDECODE_H
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <windows.h>
|
|
|
|
#include <icodec.h>
|
|
|
|
#pragma warning(disable:4355)
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
// ICCOutputPin:: Closed Captioning Output Pin Interface
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
class ICCOutputPin : public IVBIOutputPin
|
|
{
|
|
// Usable public interfaces
|
|
public:
|
|
ICCOutputPin(IKSDriver &driver, int nPin, PKSDATARANGE pKSDataRange ) :
|
|
IVBIOutputPin( driver, nPin, pKSDataRange, sizeof(VBICODECFILTERING_CC_SUBSTREAMS) ),
|
|
m_ScanlinesRequested(*this,KSPROPERTY_VBICODECFILTERING_SCANLINES_REQUESTED_BIT_ARRAY,
|
|
sizeof(VBICODECFILTERING_SCANLINES)),
|
|
m_ScanlinesDiscovered(*this,KSPROPERTY_VBICODECFILTERING_SCANLINES_DISCOVERED_BIT_ARRAY,
|
|
sizeof(VBICODECFILTERING_SCANLINES)),
|
|
m_SubstreamsRequested(*this,KSPROPERTY_VBICODECFILTERING_SUBSTREAMS_REQUESTED_BIT_ARRAY,
|
|
sizeof(VBICODECFILTERING_CC_SUBSTREAMS) ),
|
|
m_SubstreamsDiscovered(*this,KSPROPERTY_VBICODECFILTERING_SUBSTREAMS_DISCOVERED_BIT_ARRAY,
|
|
sizeof(VBICODECFILTERING_CC_SUBSTREAMS) ),
|
|
m_Statistics(*this,KSPROPERTY_VBICODECFILTERING_STATISTICS,
|
|
sizeof(VBICODECFILTERING_STATISTICS_CC_PIN))
|
|
{}
|
|
~ICCOutputPin();
|
|
|
|
// Pin specific properties (does not affect other pins)
|
|
IScanlinesProperty m_ScanlinesRequested;
|
|
IScanlinesProperty m_ScanlinesDiscovered;
|
|
|
|
ISubstreamsProperty m_SubstreamsRequested;
|
|
ISubstreamsProperty m_SubstreamsDiscovered;
|
|
|
|
IStatisticsProperty m_Statistics;
|
|
|
|
// Helper functions and internal data
|
|
protected:
|
|
|
|
};
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
// ICCDecode:: Closed Captioning Codec Interface
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
class ICCDecode : public IVBICodec
|
|
{
|
|
// Usable public interfaces
|
|
public:
|
|
ICCDecode();
|
|
~ICCDecode();
|
|
|
|
// Call to make sure construction was successful
|
|
BOOL IsValid() { return IVBICodec::IsValid() && m_OutputPin.IsValid(); }
|
|
|
|
// Typically line 21 for actual closed captioning data (default)
|
|
int AddRequestedScanline(int nScanline); // Adds _another_ scanline to the request list.
|
|
int ClearRequestedScanlines(); // Use this to reset requested scanlines to none.
|
|
int GetDiscoveredScanlines(VBICODECFILTERING_SCANLINES &ScanlineBitArray);
|
|
|
|
// One of KS_CC_SUBSTREAM_ODD(default), KS_CC_SUBSTREAM_EVEN
|
|
// Readible closed captioning data is usually on the ODD field.
|
|
int AddRequestedVideoField(int nField); // Adds _another_ field to the request list.
|
|
int ClearRequestedVideoFields(); // Use this to reset requested fields to none.
|
|
int GetDiscoveredVideoFields(VBICODECFILTERING_CC_SUBSTREAMS &bitArray);
|
|
|
|
// Statistics Property Control
|
|
int GetCodecStatistics(VBICODECFILTERING_STATISTICS_CC &CodecStatistics);
|
|
int SetCodecStatistics(VBICODECFILTERING_STATISTICS_CC &CodecStatistics);
|
|
int GetPinStatistics(VBICODECFILTERING_STATISTICS_CC_PIN &PinStatistics);
|
|
int SetPinStatistics(VBICODECFILTERING_STATISTICS_CC_PIN &PinStatistics);
|
|
|
|
// Read function (call "overlapped" at THREAD_PRIORITY_ABOVE_NORMAL to avoid data loss)
|
|
int ReadData( LPBYTE lpBuffer, int nBytes, DWORD *lpcbReturned, LPOVERLAPPED lpOS )
|
|
{ return m_OutputPin.ReadData( lpBuffer, nBytes, lpcbReturned, lpOS ); }
|
|
int GetOverlappedResult( LPOVERLAPPED lpOS, LPDWORD lpdwTransferred = NULL, BOOL bWait=TRUE )
|
|
{ return m_OutputPin.GetOverlappedResult(lpOS, lpdwTransferred, bWait ); }
|
|
|
|
// Helper functions and internal data
|
|
// Actual Pin instance [w/properties] (set by above to control filtering & to get discovered)
|
|
ICCOutputPin m_OutputPin;
|
|
|
|
// Additional driver global properties
|
|
IStatisticsProperty m_Statistics;
|
|
protected:
|
|
};
|
|
|
|
#pragma warning(default:4355)
|
|
|
|
#endif
|
|
|