/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - Initial contribution

*

* Contributors:

* Ixonos Plc

*

* Description:  

* Header for GOB segment decoding module.

*

*/

#ifndef _DECGOB_H_

#define _DECGOB_H_

#include "core.h"

#include "vdcmvc.h"

#include "vdeims.h"

#include "MPEG4Transcoder.h"

class CMPEG4Transcoder;

/*

 * Defines

 */

// unify error codes

#define DGOB_OK_BUT_BIT_ERROR H263D_OK_BUT_BIT_ERROR           /* Bit errors detected */

#define DGOB_OK H263D_OK

#define DGOB_ERR H263D_ERROR

/*

 * Structs and typedefs

 */

/* {{-output"dgobGOBSegmentInParam_t_info.txt" -ignore"*" -noCR}}

   This structure is used to pass input parameters to

   the dgobGetAndDecodeGOBSegment and dgobGetAndDecodeGOBSegmentContents

   functions.

   {{-output"dgobGOBSegmentInParam_t_info.txt"}} */

/* {{-output"dgobGOBSegmentInParam_t.txt"}} */

typedef struct {

   int numStuffBits;             /* Number of stuffing bits before GBSC */

   vdcPictureParam_t *pictParam; /* Picture attributes */

   bibBuffer_t *inBuffer;        /* Bit Buffer instance */

   bibBuffer_t *outBuffer;        /* output Bit Buffer instance */

   bibBufferEdit_t *bufEdit; 

   int iColorEffect; 

   TBool iGetDecodedFrame;

   int fGFIDShouldChange;        /* If non-zero, the gfid parameter passed in 

                                    the dgobGOBSegmentInOutParam_t structure

                                    should be different from the value got

                                    from the bitstream. Otherwise, the values

                                    should be equal. */

} dgobGOBSegmentInParam_t;

/* {{-output"dgobGOBSegmentInParam_t.txt"}} */

/* {{-output"dgobGOBSegmentInOutParam_t_info.txt" -ignore"*" -noCR}}

   This structure is used to pass input parameters to

   the dgobGetAndDecodeGOBSegment and dgobGetAndDecodeGOBSegmentContents

   functions. The functions may modify the parameters (or the structures

   pointed by the parameters).

   {{-output"dgobGOBSegmentInOutParam_t_info.txt"}} */

/* {{-output"dgobGOBSegmentInOutParam_t.txt"}} */

typedef struct {

   int prevGNWithHeader;         /* GN of the latest decoded GOB with header */

   int prevGN;                   /* GN of the latest decoded GOB */

   int gfid;                     /* GFID of the latest GOB header,

                                    specify -1 if this is the 1st GOB of

                                    the sequence */

   u_char *fCodedMBs;            /* array for coded macroblock flags in

                                    scan-order, 1 = coded, 0 = not coded */

   int numOfCodedMBs;            /* number of coded macroblocks */

   int *quantParams;             /* array of quantization parameters for

                                    macroblocks in scan-order */

   mvcData_t *mvcData;           /* Motion Vector Count module instance data */

   vdeIms_t *imageStore;         /* VDE Image Store instance data */

   int trp;                      /* Temporal Reference for Prediction,

                                    -1 if not indicated in the bitstream */

   int rtr;                      /* Real TR of the referenced image */

   u_char *refY;                 /* Reference frame */

   u_char *refU;

   u_char *refV;

   u_char *currPY;               /* Current P (or I) frame */

   u_char *currPU;

   u_char *currPV;

   int StartByteIndex;

   int StartBitIndex;

} dgobGOBSegmentInOutParam_t;

/* {{-output"dgobGOBSegmentInOutParam_t.txt"}} */

/* {{-output"dgobGOBCheckParam_t_info.txt" -ignore"*" -noCR}}

   This structure is used to pass input parameters to

   the dgobCheckNextGob function.

   {{-output"dgobGOBCheckParam_t_info.txt"}} */

/* {{-output"dgobGOBCheckParam_t.txt"}} */

typedef struct {

   bibBuffer_t *inBuffer;        /* Bit Buffer instance */

   bibBuffer_t *outBuffer;        /* Out Bit Buffer instance data */

	 int StartByteIndex;

	 int StartBitIndex;

   vdcPictureParam_t *pictParam; /* Picture attributes */

   int numStuffBits;             /* Number of stuffing bits before GBSC */

   int prevGN;                   /* GN of the latest GOB */

   int gfid;                     /* GFID of the frame */

} dgobCheckParam_t;

/* {{-output"dgobGOBCheckParam_t.txt"}} */

/*

 * Functions prototypes

 */

int dgobGetAndDecodeGOBSegment(

   const dgobGOBSegmentInParam_t *inParam,

   dgobGOBSegmentInOutParam_t *inOutParam, CMPEG4Transcoder *hTranscoder);

int dgobGetAndDecodeGOBSegmentContents(

   const dgobGOBSegmentInParam_t *inParam,

   int fGetNewReferenceFrame,

   int quant,

   dgobGOBSegmentInOutParam_t *inOutParam, CMPEG4Transcoder *hTranscoder);

int dgobCheckNextGob( 

   dgobCheckParam_t *param , CMPEG4Transcoder *hTranscoder);

#endif

// End of File