1 /****************************************************************************** 2 * * 3 * Copyright (C) 2023 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 #pragma once 22 #define MAXIMUM_SECTIONS MAXIMUM_GROUPED_SCALE_FACTOR_BAND 23 #define SECT_ESC_VAL_LONG 31 24 #define SECT_ESC_VAL_SHORT 7 25 #define CODE_BCK_BITS 4 26 #define SECT_BITS_LONG 5 27 #define SECT_BITS_SHORT 3 28 29 typedef enum { 30 SI_ID_BITS = (3), 31 SI_FILL_COUNT_BITS = (4), 32 SI_FILL_ESC_COUNT_BITS = (8), 33 SI_FILL_EXTENTION_BITS = (4), 34 SI_FILL_NIBBLE_BITS = (4), 35 SI_SCE_BITS = (4), 36 SI_CPE_BITS = (5), 37 SI_CPE_MS_MASK_BITS = (2), 38 SI_ICS_INFO_BITS_LONG = (1 + 2 + 1 + 6 + 1), 39 SI_ICS_INFO_BITS_SHORT = (1 + 2 + 1 + 4 + 7), 40 SI_ICS_BITS = (8 + 1 + 1 + 1), 41 } SI_BITS; 42 typedef struct { 43 WORD8 code_book; 44 WORD8 sfb_start; 45 WORD8 sfb_cnt; 46 WORD16 section_bits; 47 } ixheaace_section_info; 48 49 typedef struct { 50 WORD32 block_type; 51 WORD32 total_groups_cnt; 52 WORD32 sfb_cnt; 53 WORD32 max_sfb_per_grp; 54 WORD32 sfb_per_group; 55 WORD32 num_of_sections; 56 ixheaace_section_info section[MAXIMUM_SECTIONS]; 57 WORD32 side_info_bits; /* sectioning bits */ 58 WORD32 huffman_bits; /* huffman coded bits */ 59 WORD32 scale_fac_bits; /* scalefac coded bits */ 60 WORD32 first_scf; /* first scf to be coded */ 61 } ixheaace_section_data; 62 63 VOID ia_enhaacplus_enc_bitcount_init(WORD32 *side_info_tab_long, WORD32 *side_info_tab_short); 64 65 IA_ERRORCODE ia_enhaacplus_enc_dyn_bitcount( 66 const WORD16 *ptr_quant_spec, const UWORD16 *ptr_max_val_in_sfb, const WORD16 *ptr_scale_fac, 67 const WORD32 block_type, const WORD32 sfb_cnt, const WORD32 max_sfb_per_grp, 68 const WORD32 sfb_per_grp, const WORD32 *ptr_sfb_offset, 69 ixheaace_section_data *pstr_section_data, WORD32 *ptr_side_info_tab_long, 70 WORD32 *ptr_side_info_tab_short, ixheaace_huffman_tables *ptr_huffman_tbl, 71 WORD32 *ptr_scratch_buf, WORD32 aot, WORD32 *bit_cnt); 72