1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:

    16 *

    17 */

    18 

    19 

    20 #ifndef _VLC_H_

    21 #define _VLC_H_

    22 

    23 

    24 #include "bitbuffer.h"

    25 

    26 

    27 #define VLD_OK                       0

    28 #define VLD_ERROR                   -1

    29 #define VLD_ERR_MAX_CW_LEN_EXCEEDED -2

    30 

    31 

    32 typedef struct _vldMBtype_s {

    33   int type;

    34   int intraType;

    35   int intraMode;

    36   int interMode;

    37   int inter8x8modes[4];

    38   int cbpY;

    39   int cbpC;

    40   int cbpChromaDC;

    41 } vldMBtype_s;

    42 

    43 

    44 unsigned int vldGetFLC(bitbuffer_s *bitbuf, int len);

    45 

    46 unsigned int vldGetUVLC(bitbuffer_s *bitbuf);

    47 

    48 int32 vldGetSignedUVLClong(bitbuffer_s *bitbuf);

    49 

    50 u_int32 vldGetUVLClong(bitbuffer_s *bitbuf);

    51 

    52 #ifdef VIDEOEDITORENGINE_AVC_EDITING

    53 

    54 void vldInvZigZagScan4x4(int *src, int dest[BLK_SIZE][BLK_SIZE]);

    55 

    56 int vldGetSignedUVLC(bitbuffer_s *bitbuf);

    57 

    58 int getLumaBlkCbp(int cbpY);

    59 

    60 void setChromaCbp(int nc, int *cbpDC, int *cbp);

    61 

    62 unsigned int vldGetRunIndicator(bitbuffer_s *bitbuf);

    63 

    64 int vldGetMBtype(bitbuffer_s *bitbuf, vldMBtype_s *hdr, int picType);

    65 

    66 int vldGetIntraPred(bitbuffer_s *bitbuf, int8 *ipTab);

    67 

    68 int vldGetChromaIntraPred(bitbuffer_s *bitbuf);

    69 

    70 int vldGetMotVecs(bitbuffer_s *bitbuf, int interMode, int numRefFrames,

    71                   int *refNum, int predVecs[][2], int numVecs);

    72 

    73 int vldGetCBP(bitbuffer_s *bitbuf, int type,

    74               int *cbpY, int *cbpChromaDC, int *cbpC);

    75 

    76 int vldGetDeltaqp(bitbuffer_s *bitbuf, int *delta_qp);

    77 

    78 int vldGetLumaDCcoeffs(bitbuffer_s *bitbuf, int coef[4][4],

    79                        int8 *numCoefUpPred, int8 *numCoefLeftPred,

    80                        int mbAvailBits);

    81 

    82 int vldGetLumaCoeffs(bitbuffer_s *bitbuf, int mbType, int intraType,

    83                      int *cbpY, int coef[4][4][4][4], int8 *numCoefUpPred,

    84                      int8 *numCoefLeftPred, int mbAvailBits);

    85 

    86 void vldGetZeroLumaCoeffs(int8 *numCoefUpPred, int8 *numCoefLeftPred);

    87 

    88 int vldGetChromaDCcoeffs(bitbuffer_s *bitbuf, int coef[2][2][2], int *cbpDC);

    89 

    90 int vldGetChromaCoeffs(bitbuffer_s *bitbuf, int coef[2][2][2][4][4], int *cbp,

    91                        int8 *numCoefUpPred, int8 *numCoefUpPredV,

    92                        int8 *numCoefLeftPred, int8 *numCoefLeftPredV,

    93                        int mbAvailBits);

    94 

    95 void vldGetZeroChromaCoeffs(int8 *numCoefUpPredU, int8 *numCoefUpPredV,

    96                             int8 numCoefLeftPred[2][2]);

    97 

    98 void vldGetAllCoeffs(int8 *numCoefUpPredY, int8 *numCoefUpPredU,

    99                      int8 *numCoefUpPredV, int8 *numCoefLeftPredY,

   100                      int8 numCoefLeftPredC[2][2]);

   101 

   102 int vldSetUVLC(int codeNumber, int* codeword, int* codewordLength);

   103 

   104 #endif  // VIDEOEDITORENGINE_AVC_EDITING

   105 

   106 #endif