lchipctl.h

jpeg and mpeg 编解码技术源代码

#ifndef __LCHIPCTL_H__
#define __LCHIPCTL_H__

#ifdef __cplusplus
extern "C" {
#endif	// __cplusplus

// For module global variables declaration....
#ifdef __CHIPCTL_CPP__
#define GLOBAL
#else
#define GLOBAL	extern
#endif	// __CHIPCTL_CPP__

// Define video decoder's settings file name for each source type
#define I2C_PAL			"\\I2C_PAL.in"		// PAL
#define I2C_NTSC		"\\I2C_NTSC.in"		// NTSC
#define I2C_SQUARE		"\\I2C_SQR.in"		// NTSC and SQUARE

#define COMPONENTS_REGISTRY		"SOFTWARE\\MPEG-I\\WMPEG200\\Components"
#define BRIGHTNESS_REGISTRY		"BrightnessAddress"
#define CONTRAST_REGISTRY		"ContrastAddress"
#define HUE_REGISTRY			"HueAddress"
#define SATURATION_REGISTRY		"SaturationAddress"
#define SOURCE_REGISTRY			"SourceAddress"
#define VIDEO_LOCK_REGISTRY		"VideoLockAddress"
#define VIDEO_TYPE_REGISTRY		"VideoTypeAddress"
#define SOURCE0_VALUE			"Source0Value"
#define SOURCE1_VALUE			"Source1Value"
#define SOURCE2_VALUE			"Source2Value"
#define VIDEO_LOCK_BIT_VALUE	"VideoLockBitValue"
#define VIDEO_VIDEO_TYPE_PAL	"VideoTypePALValue"
#define VIDEO_VIDEO_TYPE_NTSC	"VideoTypeNTSCValue"

#define TVTUNER_DECODER_DEVICE_ID	"TVTunerDeviceID"

#define AUDIO_CODAC				"AudioCODAC"

#define ATTRIBUTE_BRIGHTNESS		0x0001		// Brightness tuning
#define ATTRIBUTE_CONTRAST			0x0002		// Contrast tuning
#define ATTRIBUTE_HUE				0x0004		// Hue tuning
#define ATTRIBUTE_SATURATION		0x0008		// Saturation tuning
#define ATTRIBUTE_SOURCE			0x0010		// Source selection
#define ATTRIBUTE_VIDEO_LOCK		0x0020		// Support video lock bit
#define ATTRIBUTE_VIDEO_TYPE		0x0040		// Support video source type
#define ATTRIBUTE_TVTUNER			0x0080		// Support TV Tuner
#define ATTRIBUTE_AUDIO_CODAC		0x0100		// Support audio codac

typedef struct _CHIPCTL_COMPONENTS_ATTRIBUTES
{
	int		iSupportAttribute;
	int		iBrightnessAddress;
	int		iContrastAddress;
	int		iHueAddress;
	int		iSaturationAddress;
	int		iSourceAddress;
	int		iVideoSource[3];		// The registre value of source 0, 1, and 2
	int		iVideoLockAddress;
	int		iVideoLockBitValue;		// This bit is 0:Lock, 1:Unlock
	int		iVideoTypeAddress;
	int		iVideoTypeNTSC;			// This bit is 1:NTSC, 0:PAL

	int		iTVTunerDeviceID;

	int		iAudioCODAC;			// 0: no audio codac on board
} CHIPCTL_COMPONENTS_ATTRIBUTES, *PCHIPCTL_COMPONENTS_ATTRIBUTES;

typedef struct _CHIPCTL_GDS
{
	PCHIPCTL_COMPONENTS_ATTRIBUTES	pComponentsAttributes;
	OVERLAPPED						OverlappedEvent;
} CHIPCTL_GDS, *PCHIPCTL_GDS;

GLOBAL PCHIPCTL_GDS		_pGDS;
GLOBAL CHIPCTL_COMPONENTS_ATTRIBUTES	_ComponentsAttributes;
GLOBAL DWORD			_dwTotalSlotNumber;

//=============================
// Module functions
//=============================
// At ChipCtl.cpp
void InitModule( LPBYTE lpRegistryPath );

// At TVTuner.cpp
BOOL CheckChannelNumberValidity( int iChannelType, int iChannelNum );
int GetChannelCarrierFreq( int iChannelType, int iChannelNum );
int GetIntermediateFreq( int iChannelType );

#ifdef __cplusplus
}
#endif	// __cplusplus

#endif	// __LCHIPCTL_H__