text: /******************************************************************************
   *
   * Copyright (C) 2015 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at:
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   *****************************************************************************
   * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
  */
  #ifndef _IH264D_PARSE_CAVLC_H_
  #define _IH264D_PARSE_CAVLC_H_
  /*!
   **************************************************************************
   * \file ih264d_parse_cavlc.h
   *
   * \brief
   *    Declaration of UVLC and CAVLC functions
   *
   * \date
   *    18/12/2002
   *
   * \author  AI
   **************************************************************************
   */
  #include "ih264_typedefs.h"
  #include "ih264_macros.h"
  #include "ih264_platform_macros.h"
  #include "ih264d_bitstrm.h"
  #include "ih264d_structs.h"
  #include "ih264d_cabac.h"
  
  enum cavlcTableNum
  {
      tableTotalZeroOffset,
      tableTotalZero,
      tableRunBefore,
      codeGx,
      chromTab,
      offsetNumVlcTab
  };
  
  WORD32 ih264d_uvlc(dec_bit_stream_t *ps_bitstrm,
                     UWORD32 u4_range,
                     UWORD32 *pi_bitstrm_ofst,
                     UWORD8 u1_flag,
                     UWORD32 u4_bitstrm_ofst,
                     UWORD32 *pi_bitstrm_buf);
  
  UWORD32 ih264d_uev(UWORD32 *pu4_bitstrm_ofst, UWORD32 *pu4_bitstrm_buf);
  
  WORD32 ih264d_sev(UWORD32 *pu4_bitstrm_ofst, UWORD32 *pu4_bitstrm_buf);
  
  UWORD32 ih264d_tev_range1(UWORD32 *pu4_bitstrm_ofst,
                            UWORD32 *pu4_bitstrm_buf);
  
  UWORD8 RestOfResidualBlockCavlc(WORD16 *pi2_coeff_block,
                                  UWORD32 u1_ofst_is_dc_max_coef_scale_fact,
                                  UWORD32 u4_total_coeff_trail_one,
                                  dec_bit_stream_t *ps_bitstrm,
                                  UWORD8 *pu1_invscan);
  
  WORD32 ih264d_cavlc_4x4res_block_totalcoeff_1( UWORD32 u4_isdc,
                                             UWORD32 u4_total_coeff_trail_one,
                                             dec_bit_stream_t *ps_bitstrm);
  
  WORD32 ih264d_cavlc_4x4res_block_totalcoeff_2to10(UWORD32 u4_isdc,
                                                 UWORD32 u4_total_coeff_trail_one,
                                                 dec_bit_stream_t *ps_bitstrm);
  
  WORD32 ih264d_cavlc_4x4res_block_totalcoeff_11to16(UWORD32 u4_isdc,
                                                  UWORD32 u4_total_coeff_trail_one,
                                                  dec_bit_stream_t *ps_bitstrm);
  
  WORD32 ih264d_cavlc_parse4x4coeff_n0to7(WORD16 *pi2_coeff_block,
                                          UWORD32 u4_isdc,
                                          WORD32 u4_n,
                                          dec_struct_t *ps_dec,
                                          UWORD32 *pu4_total_coeff);
  
  WORD32 ih264d_cavlc_parse4x4coeff_n8(WORD16 *pi2_coeff_block,
                                        UWORD32 u4_isdc,
                                        WORD32 u4_n,
                                        dec_struct_t *ps_dec,
                                        UWORD32 *pu4_total_coeff);
  
  void ih264d_cavlc_parse_chroma_dc(dec_mb_info_t *ps_cur_mb_info,
                                    WORD16 *pi2_coeff_block,
                                    dec_bit_stream_t *ps_bitstrm,
                                    UWORD32 u4_scale_u,
                                    UWORD32 u4_scale_v,
                                    WORD32 i4_mb_inter_inc);
  
  WORD32 ih264d_cavlc_parse_8x8block_none_available(WORD16 *pi2_coeff_block,
                                                    UWORD32 u4_sub_block_strd,
                                                    UWORD32 u4_isdc,
                                                    dec_struct_t * ps_dec,
                                                    UWORD8 *pu1_top_nnz,
                                                    UWORD8 *pu1_left_nnz,
                                                    UWORD8 u1_tran_form8x8,
                                                    UWORD8 u1_mb_field_decodingflag,
                                                    UWORD32 *pu4_csbp);
  
  WORD32 ih264d_cavlc_parse_8x8block_left_available(WORD16 *pi2_coeff_block,
                                                    UWORD32 u4_sub_block_strd,
                                                    UWORD32 u4_isdc,
                                                    dec_struct_t * ps_dec,
                                                    UWORD8 *pu1_top_nnz,
                                                    UWORD8 *pu1_left_nnz,
                                                    UWORD8 u1_tran_form8x8,
                                                    UWORD8 u1_mb_field_decodingflag,
                                                    UWORD32 *pu4_csbp);
  
  WORD32 ih264d_cavlc_parse_8x8block_top_available(WORD16 *pi2_coeff_block,
                                                   UWORD32 u4_sub_block_strd,
                                                   UWORD32 u4_isdc,
                                                   dec_struct_t * ps_dec,
                                                   UWORD8 *pu1_top_nnz,
                                                   UWORD8 *pu1_left_nnz,
                                                   UWORD8 u1_tran_form8x8,
                                                   UWORD8 u1_mb_field_decodingflag,
                                                   UWORD32 *pu4_csbp);
  
  WORD32 ih264d_cavlc_parse_8x8block_both_available(WORD16 *pi2_coeff_block,
                                                    UWORD32 u4_sub_block_strd,
                                                    UWORD32 u4_isdc,
                                                    dec_struct_t * ps_dec,
                                                    UWORD8 *pu1_top_nnz,
                                                    UWORD8 *pu1_left_nnz,
                                                    UWORD8 u1_tran_form8x8,
                                                    UWORD8 u1_mb_field_decodingflag,
                                                    UWORD32 *pu4_csbp);
  
  WORD8 ResidualBlockChromaDC(WORD16 *pi2_level, dec_bit_stream_t *ps_bitstrm);
  
  void ih264d_parse_pmb_ref_index_cavlc_range1(UWORD32 u4_num_part,
                                               dec_bit_stream_t *ps_bitstrm,
                                               WORD8 *pi1_ref_idx,
                                               UWORD32 u4_num_ref_idx_active_minus1);
  
  WORD32 ih264d_parse_pmb_ref_index_cavlc(UWORD32 u4_num_part,
                                        dec_bit_stream_t *ps_bitstrm,
                                        WORD8 *pi1_ref_idx,
                                        UWORD32 u4_num_ref_idx_active_minus1);
  
  void ih264d_parse_bmb_ref_index_cavlc_range1(UWORD32 u4_num_part,
                                               dec_bit_stream_t *ps_bitstrm,
                                               WORD8 *pi1_ref_idx,
                                               UWORD32 u4_num_ref_idx_active_minus1);
  
  WORD32 ih264d_parse_bmb_ref_index_cavlc(UWORD32 u4_num_part,
                                        dec_bit_stream_t *ps_bitstrm,
                                        WORD8 *pi1_ref_idx,
                                        UWORD32 u4_num_ref_idx_active_minus1);
  
  #endif  /* _IH264D_PARSE_CAVLC_H_ */
  