invtelec.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
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 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
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 * This file, and the files included with this file, is distributed and made 
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 * Technology Compatibility Kit Test Suite(s) Location: 
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 * ***** END LICENSE BLOCK ***** */ 


#ifndef INVTELEC_H__
#define INVTELEC_H__

#include "hxtypes.h"

#ifdef _M_IX86
#define ALLOW_MMX_INVTELE
#endif

#define T_INVTELE_FLOAT	float
#define T_INVTELE_RESULT ULONG32

#define INVTELE_RESULT_DROP_FRAME			0
#define INVTELE_RESULT_FRAME_OK				1
#define INVTELE_RESULT_TOO_EARLY			2
#define INVTELE_RESULT_LOW_FRAMERATE		3
#define INVTELE_RESULT_NO_PATTERN			4
#define INVTELE_RESULT_UNINITIALIZED		5

#define INVTELE_RESULT_PATTERN_FOUND(res)	\
	((res) == INVTELE_RESULT_DROP_FRAME ||	\
	 (res) == INVTELE_RESULT_FRAME_OK)

#define MISSING_SAD (-2.0f)
#define UN_INIT_SAD (-1.0f)

#define INVTELE_IMPL_ID_C		0
#define INVTELE_IMPL_ID_MMX		1

#define PULLDOWN_HIST_LEN 20

// Inverse-Telecine State
typedef struct tag_T_INVTELE_STATE
{
	ULONG32			impl_id;
	T_INVTELE_FLOAT	pulldownSadHistEven[PULLDOWN_HIST_LEN];
	T_INVTELE_FLOAT	pulldownSadHistOdd[PULLDOWN_HIST_LEN];
	T_INVTELE_FLOAT	pulldownSadHistAll[PULLDOWN_HIST_LEN];
	ULONG32			pulldownTimeHist[PULLDOWN_HIST_LEN];
	BOOL			firstFrame;
	ULONG32			ulPulldownActiveTimerIntl;
	ULONG32			ulPulldownActiveTimerProg;
	ULONG32			lastRemovedTimestamp;
	INT32			frameCountMod;
	INT32			frameRemovalPattern;
	INT32			NTSCTrackingFrameCounter;
	BOOL			interleaveEvenFlag;
	BOOL			interleaveOddFlag;
	BOOL			checkNextFrameForInterlace;
	BOOL			checkNextFrameForProgressive;
	ULONG32			pulldownTimeBuffer;
	BOOL			bInterlacedTelecineSeen;
	BOOL			bProgressiveTelecineSeen;

} T_INVTELE_STATE;


// Inverse Telecine Interface
INT32
InitInvTelecine(T_INVTELE_STATE **state);

void
FreeInvTelecine(T_INVTELE_STATE **state);

T_INVTELE_RESULT 
DoInvTelecine(
	UCHAR *data, 
	UCHAR *prevData, 
	double frameRate, 
	ULONG32 &timestamp, 
	ULONG32 pels, ULONG32 lines, 
	BOOL bDeInterlaced, 
	T_INVTELE_STATE *state);

UCHAR
GetTelecinePattern(T_INVTELE_STATE *state);

void
SetTelecinePattern(T_INVTELE_STATE *state, UCHAR telecine_pattern);

BOOL
IsContentProgressiveTelecine(T_INVTELE_STATE *state);

BOOL
IsContentInterlacedTelecine(T_INVTELE_STATE *state);

#endif