141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/******************************************************************************
|
|
* *
|
|
* Copyright (C) 2018 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 IXHEAACD_BITBUFFER_H
|
|
#define IXHEAACD_BITBUFFER_H
|
|
|
|
#include <setjmp.h>
|
|
|
|
#define CRC_ADTS_HEADER_LEN 56
|
|
#define CRC_ADTS_RAW_DATA_BLK_LEN 192
|
|
#define CRC_ADTS_RAW_IIND_ICS 128
|
|
#define CRC_ADTS_LEN_ALL -1
|
|
|
|
#define MAX_REG_SIZE 192
|
|
#define MAX_CRC_REGS 7
|
|
|
|
struct ia_crc_bit_buf_struct {
|
|
UWORD8 *ptr_bit_buf_base;
|
|
UWORD8 *ptr_bit_buf_end;
|
|
|
|
UWORD8 *ptr_read_next;
|
|
WORD16 bit_pos;
|
|
WORD32 cnt_bits;
|
|
|
|
WORD32 size;
|
|
};
|
|
|
|
typedef struct {
|
|
UWORD8 active;
|
|
WORD32 buf_size;
|
|
WORD32 max_bits;
|
|
UWORD32 bit_cnt;
|
|
WORD32 bit_buf_cnt;
|
|
struct ia_crc_bit_buf_struct str_bit_buf;
|
|
} ia_crc_reg_data_struct;
|
|
|
|
typedef struct {
|
|
UWORD8 crc_active;
|
|
UWORD16 no_reg;
|
|
UWORD16 file_value;
|
|
UWORD16 crc_lookup[256];
|
|
ia_crc_reg_data_struct str_crc_reg_data[MAX_CRC_REGS];
|
|
} ia_adts_crc_info_struct;
|
|
|
|
typedef struct ia_bit_buf_struct {
|
|
UWORD8 *ptr_bit_buf_base;
|
|
UWORD8 *ptr_bit_buf_end;
|
|
|
|
UWORD8 *ptr_read_next;
|
|
|
|
WORD32 bit_pos;
|
|
WORD32 cnt_bits;
|
|
|
|
WORD32 size;
|
|
|
|
WORD32 adts_header_present;
|
|
WORD32 crc_check;
|
|
WORD8 protection_absent;
|
|
WORD8 no_raw_data_blocks;
|
|
ia_adts_crc_info_struct str_adts_crc_info;
|
|
ia_adts_crc_info_struct *pstr_adts_crc_info;
|
|
|
|
WORD32 initial_cnt_bits;
|
|
WORD32 audio_mux_align;
|
|
WORD32 bit_count;
|
|
WORD32 valid_bits;
|
|
UWORD8 byte;
|
|
UWORD8 *byte_ptr;
|
|
UWORD8 *ptr_start;
|
|
WORD32 write_bit_count;
|
|
WORD32 max_size;
|
|
jmp_buf *xaac_jmp_buf;
|
|
|
|
} ia_bit_buf_struct;
|
|
|
|
typedef struct ia_bit_buf_struct *ia_handle_bit_buf_struct;
|
|
|
|
typedef struct ia_crc_bit_buf_struct *ia_crc_bit_buf_struct_handle;
|
|
|
|
VOID ixheaacd_byte_align(ia_bit_buf_struct *it_bit_buff,
|
|
WORD32 *ptr_byte_align_bits);
|
|
|
|
ia_bit_buf_struct *ixheaacd_create_bit_buf(ia_bit_buf_struct *it_bit_buff,
|
|
UWORD8 *ptr_bit_buf_base,
|
|
WORD32 bit_buf_size);
|
|
|
|
VOID ixheaacd_create_init_bit_buf(ia_bit_buf_struct *it_bit_buff,
|
|
UWORD8 *ptr_bit_buf_base,
|
|
WORD32 bit_buf_size);
|
|
|
|
WORD32 ixheaacd_read_bits_buf(ia_bit_buf_struct *it_bit_buff, WORD no_of_bits);
|
|
|
|
WORD32 ixheaacd_skip_bits_buf(ia_bit_buf_struct *it_bit_buff, WORD no_of_bits);
|
|
|
|
WORD32 ixheaacd_show_bits_buf(ia_bit_buf_struct *it_bit_buff, WORD no_of_bits);
|
|
|
|
VOID ixheaacd_read_bidirection(ia_bit_buf_struct *it_bit_buff,
|
|
WORD32 ixheaacd_drc_offset);
|
|
|
|
UWORD32 ixheaacd_aac_showbits_32(UWORD8 *ptr_read_next, WORD32 cnt_bits,
|
|
WORD32 *increment);
|
|
|
|
VOID ixheaacd_aac_read_byte(UWORD8 **ptr_read_next, WORD32 *bit_pos,
|
|
WORD32 *readword);
|
|
|
|
VOID ixheaacd_aac_read_byte_corr(UWORD8 **ptr_read_next, WORD32 *ptr_bit_pos,
|
|
WORD32 *readword, UWORD8 *p_bit_buf_end);
|
|
|
|
VOID ixheaacd_aac_read_byte_corr1(UWORD8 **ptr_read_next, WORD32 *ptr_bit_pos,
|
|
WORD32 *readword, UWORD8 *p_bit_buf_end);
|
|
|
|
#define get_no_bits_available(it_bit_buff) ((it_bit_buff)->cnt_bits)
|
|
#define ixheaacd_no_bits_read(it_bit_buff) \
|
|
((it_bit_buff)->size - (it_bit_buff)->cnt_bits)
|
|
|
|
WORD32 ixheaacd_aac_read_bit_rev(ia_bit_buf_struct *it_bit_buff);
|
|
WORD32 ixheaacd_aac_read_bit(ia_bit_buf_struct *it_bit_buff);
|
|
|
|
VOID ixheaacd_write_bit(ia_bit_buf_struct *it_bit_buff, WORD32 value,
|
|
WORD32 no_of_bits);
|
|
|
|
WORD32 ixheaacd_read_bit(ia_bit_buf_struct *data, WORD32 no_of_bits);
|
|
|
|
#endif /* IXHEAACD_BITBUFFER_H */
|