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/******************************************************************************
* *
* 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_DRC_DATA_STRUCT_H
#define IXHEAACD_DRC_DATA_STRUCT_H
#define MAX_DRC_BANDS 16
#define MAX_AUDIO_CHANNELS 8
#define SBR_QMF_SUB_SAMPLES 64
#define SBR_QMF_SUB_BANDS 64
typedef enum {
UNKNOWN_PAYLOAD = 0,
MPEG_DRC_EXT_DATA = 1,
DVB_DRC_ANC_DATA = 2
} AACDEC_DRC_PAYLOAD_TYPE;
#define DVB_ANC_DATA_SYNC_BYTE (0xBC)
typedef struct {
WORD32 prog_ref_level;
WORD16 n_mdct_bands[MAX_DRC_BANDS];
WORD16 drc_fac[MAX_DRC_BANDS];
WORD16 drc_fac_dvb[MAX_DRC_BANDS];
WORD8 drc_exp;
UWORD8 short_block;
UWORD8 drc_interp_scheme;
UWORD8 n_drc_bands;
UWORD8 new_prog_ref_level;
UWORD8 new_drc_fac;
UWORD8 prev_interp_scheme;
WORD32 drc_factors_sbr[SBR_QMF_SUB_SAMPLES][SBR_QMF_SUB_BANDS];
} ixheaac_drc_data_struct;
typedef struct {
UWORD8 b_channel_on[MAX_AUDIO_CHANNELS];
UWORD8 prog_ref_level_present;
UWORD8 prog_ref_level;
UWORD8 drc_num_bands;
UWORD8 drc_band_top[MAX_DRC_BANDS];
WORD8 dyn_rng_dlbl[MAX_DRC_BANDS];
WORD8 dyn_rng_dlbl_dvb[MAX_DRC_BANDS];
WORD8 max_dyn_rng_dlbl;
UWORD8 drc_interpolation_scheme;
WORD8 drc_data_type;
} ixheaac_drc_bs_data_struct;
typedef struct {
ixheaac_drc_bs_data_struct str_drc_bs_data[MAX_BS_ELEMENT];
ixheaac_drc_data_struct str_drc_channel_data[MAX_BS_ELEMENT];
WORD16 drc_ref_level;
WORD16 drc_def_level;
UWORD8 drc_channel_next_index[MAX_BS_ELEMENT];
UWORD8 sbr_allowed;
UWORD8 sbr_found;
UWORD8 drc_element_found;
UWORD8 max_audio_channels;
UWORD8 length_history;
UWORD8 num_drc_elements;
WORD32 is_longblock[MAX_BS_ELEMENT];
WORD32 state;
WORD32 target_ref_level;
WORD32 prog_ref_level;
WORD32 cut_factor;
WORD32 boost_factor;
FLAG drc_dig_norm;
FLAG drc_on;
FLAG dvb_anc_data_present;
WORD32 dvb_anc_data_pos;
WORD32 pres_mode;
WORD32 heavy_mode;
} ia_drc_dec_struct;
#endif
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