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 _SLICE_H_

    21 #define _SLICE_H_

    22 

    23 

    24 #include "globals.h"

    25 #include "nrctyp32.h"

    26 #include "bitbuffer.h"

    27 #include "framebuffer.h"

    28 #include "motcomp.h"

    29 #include "parameterset.h"

    30 #include "dpb.h"

    31 #include <e32std.h>

    32 

    33 /* Error codes */

    34 #define SLICE_ERR_NON_EXISTING_PPS     -5

    35 #define SLICE_ERR_NON_EXISTING_SPS     -4

    36 #define SLICE_ERR_UNSUPPORTED_FEATURE  -3

    37 #define SLICE_ERR_ILLEGAL_VALUE        -2

    38 #define SLICE_ERROR                    -1

    39 #define SLICE_OK                        0

    40 #define SLICE_STOP_PARSING				1

    41 #define SLICE_STOP_PARSING				1

    42 

    43 #define MAX_SLICE_GROUP_NUM      8

    44 #define MAX_NUM_OF_REORDER_CMDS  17

    45 #define MAX_NUM_OF_MMCO_OPS      35

    46 

    47 

    48 typedef struct _sliceMMCO_s {

    49   unsigned int memory_management_control_operation;

    50   unsigned int difference_of_pic_nums_minus1;

    51   unsigned int long_term_pic_num;

    52   unsigned int long_term_frame_idx;

    53   unsigned int max_long_term_frame_idx_plus1;

    54 } sliceMMCO_s;

    55 

    56 

    57 typedef struct _sliceRefPicListReorderCmd_s {

    58   unsigned int reordering_of_pic_nums_idc;

    59   unsigned int abs_diff_pic_num_minus1;

    60   unsigned int long_term_pic_num;

    61 } sliceRefPicListReorderCmd_s;

    62 

    63 

    64 

    65 typedef struct _slice_s {

    66 

    67   /* Copied from NAL deader */

    68   int nalType;

    69   int nalRefIdc;

    70 

    71   u_int32       maxFrameNum;

    72 

    73   unsigned int  isIDR;

    74   unsigned int  qp;

    75   unsigned int  picHasMMCO5;

    76 

    77   /*

    78    * These are slice header syntax elements

    79    */

    80 

    81   unsigned int  first_mb_in_slice;

    82   unsigned int  slice_type;

    83   unsigned int  pic_parameter_set_id;

    84   unsigned int  frame_num;

    85 

    86     unsigned int  idr_pic_id;

    87 

    88     unsigned int  pic_order_cnt_lsb;

    89       int32         delta_pic_order_cnt_bottom;

    90 

    91     int32         delta_pic_order_cnt_0;

    92       int32         delta_pic_order_cnt_1;

    93 

    94     unsigned int  redundant_pic_cnt;

    95 

    96   unsigned int  num_ref_idx_active_override_flag;

    97     unsigned int  num_ref_idx_l0_active_minus1;

    98 

    99   unsigned int  ref_pic_list_reordering_flag0;

   100     sliceRefPicListReorderCmd_s reorderCmdList[MAX_NUM_OF_REORDER_CMDS];

   101 

   102 /* pred_weight_table() */

   103 

   104   /* if( nal_unit_type  = =  5 ) */

   105     unsigned int  no_output_of_prior_pics_flag;

   106     unsigned int  long_term_reference_flag;

   107   /* else */

   108     unsigned int  adaptive_ref_pic_marking_mode_flag;

   109       sliceMMCO_s mmcoCmdList[MAX_NUM_OF_MMCO_OPS];

   110 

   111   int           slice_qp_delta;

   112 

   113     unsigned int  disable_deblocking_filter_idc;

   114       int           slice_alpha_c0_offset_div2;

   115       int           slice_beta_offset_div2;

   116 

   117     unsigned int  slice_group_change_cycle;

   118     

   119     TInt	bitOffset;

   120     TUint sliceDataModified;

   121 } slice_s;

   122 

   123 

   124 slice_s *sliceOpen();

   125 

   126 void sliceClose(slice_s *slice);

   127 

   128 TInt ParseSliceHeader(slice_s *slice, seq_parameter_set_s *spsList[],

   129                      pic_parameter_set_s *ppsList[], bitbuffer_s *bitbuf, 

   130                      TUint* frameNumber, TUint aFrameFromEncoder);

   131 

   132 TInt sliceParseMacroblocks(slice_s *slice, frmBuf_s *recoBuf, dpb_s *dpb,

   133                            pic_parameter_set_s *pps,

   134                            mbAttributes_s *mbData, TInt sliceID,

   135                            bitbuffer_s *bitbuf,

   136                            TBool aBitShiftInSlice);

   137 

   138 int sliceInitRefPicList(dpb_s *dpb, frmBuf_s *refPicList[]);

   139 

   140 int sliceFixRefPicList(dpb_s *dpb, frmBuf_s *refPicList[],

   141                        int numRefPicActive, int numExistingRefFrames,

   142                        int width, int height);

   143                        

   144 void EncodeUnsignedNBits(bitbuffer_s *aBitBuffer, TUint aValue, TUint aLength);

   145 

   146 

   147 #endif