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/******************************************************************************
* *
* Copyright (C) 2023 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
*/
#pragma once
#define IXHEAACE_MEM_FREE(pv_output) \
{ \
WORD32 idx; \
ixheaace_output_config *pstr_output_config = (ixheaace_output_config *)pv_output; \
if (pstr_output_config->malloc_count > 0) { \
for (idx = pstr_output_config->malloc_count - 1; idx >= 0; idx--) { \
if (pstr_output_config->arr_alloc_memory[idx]) { \
pstr_output_config->free_xheaace(pstr_output_config->arr_alloc_memory[idx]); \
} \
} \
pstr_output_config->malloc_count = 0; \
} \
}
/*-------------------- structure definitions ------------------------------*/
typedef struct {
WORD32 sample_rate; /* mapped input sample rate */
WORD32 core_sample_rate; /* core coder processing sample rate */
WORD32 native_sample_rate; /* audio file sample rate */
WORD32 bit_rate; /* encoder bit rate in bits/sec */
WORD32 num_in_channels; /* number of channels on input (1,2) */
WORD32 num_out_channels; /* number of channels on output (1,2) */
WORD32 band_width; /* targeted audio bandwidth in Hz */
WORD32 dual_mono; /* flag: make 2 SCEs for stereo input files */
WORD32 use_tns; /* flag: use temporal noise shaping */
WORD32 use_adts; /* flag: use ADTS instead of ADIF */
WORD32 calc_crc; /* flag: write CRC checks */
WORD32 private_bit; /* private bit of MPEG Header */
WORD32 copyright_bit; /* copyright bit of MPEG Header */
WORD32 original_copy_bit; /* original bit of MPEG Header */
WORD32 num_stereo_preprocessing; /* forbid usage of stereo prerpocessing */
WORD32 inv_quant; /* improve distortion by inverse quantization */
WORD32 full_bandwidth; /* improve distortion by inverse quantization */
WORD32 flag_framelength_small; /* indicates frame size. 0 -> 512, 1 -> 480
indicates frame size. 0 -> 1024, 1 -> 960 */
WORD32 bitreservoir_size; /* size of bit reservoir (default:0; max 6144)*/
} iaace_config;
typedef struct {
WORD32 *shared_buffer1;
WORD32 *shared_buffer_2;
WORD32 *shared_buffer3;
WORD8 *shared_buffer5;
} iaace_scratch;
/* pstr_ancillary configuration struct */
typedef struct {
WORD32 anc_flag;
WORD32 anc_mode;
WORD32 anc_rate;
} ixheaace_config_ancillary;
typedef struct {
iaace_config config;
ixheaace_element_info element_info;
ixheaace_psy_out psy_out;
ixheaace_psy_kernel psy_kernel;
ixheaace_qc_state qc_kernel;
ixheaace_qc_out qc_out;
ixheaace_bitstream_enc_init bse_init;
ixheaace_stereo_pre_pro_struct str_stereo_pre_pro;
WORD32 downmix;
WORD32 downmix_fac;
WORD32 dual_mono;
WORD32 bandwidth_90_dB;
iaace_scratch *pstr_aac_scratch;
} iexheaac_encoder_str;
VOID ia_enhaacplus_enc_aac_init_default_config(iaace_config *config, WORD32 aot);
WORD32 ia_enhaacplus_enc_aac_enc_pers_size(WORD32 num_aac_chan, WORD32 aot);
WORD32 ia_enhaacplus_enc_aac_enc_scr_size(VOID);
VOID ia_enhaacplus_enc_init_aac_tabs(ixheaace_aac_tables *pstr_aac_tabs);
IA_ERRORCODE ia_enhaacplus_enc_aac_enc_open(iexheaac_encoder_str **ppstr_exheaac_encoder,
const iaace_config config,
iaace_scratch *pstr_aac_scratch,
ixheaace_aac_tables *pstr_aac_tabs, WORD32 ele_type,
WORD32 element_instance_tag, WORD32 aot);
IA_ERRORCODE ia_enhaacplus_enc_aac_core_encode(
iexheaac_encoder_str **pstr_aac_enc, FLOAT32 *ptr_time_signal, UWORD32 time_sn_stride,
const UWORD8 *ptr_anc_bytes, UWORD8 *num_anc_bytes, UWORD8 *ptr_out_bytes,
WORD32 *num_out_bytes, ixheaace_aac_tables *pstr_aac_tables, VOID *ptr_bit_stream_handle,
VOID *ptr_bit_stream, FLAG flag_last_element, WORD32 *write_program_config_element,
WORD32 i_num_coup_channels, WORD32 i_channels_mask, WORD32 ele_idx, WORD32 *total_fill_bits,
WORD32 total_channels, WORD32 aot, WORD32 adts_flag, WORD32 num_bs_elements,
WORD32 *is_quant_spec_zero, WORD32 *is_gain_limited);
VOID ia_enhaacplus_enc_set_shared_bufs(iaace_scratch *scr, WORD32 **shared_buf1,
WORD32 **shared_buf2, WORD32 **shared_buf3,
WORD8 **shared_buf5);
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