93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/******************************************************************************
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* *
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#ifndef IXHEAACD_DRC_DATA_STRUCT_H
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#define IXHEAACD_DRC_DATA_STRUCT_H
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#define MAX_DRC_BANDS 16
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#define MAX_AUDIO_CHANNELS 8
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#define SBR_QMF_SUB_SAMPLES 64
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#define SBR_QMF_SUB_BANDS 64
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typedef enum {
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UNKNOWN_PAYLOAD = 0,
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MPEG_DRC_EXT_DATA = 1,
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DVB_DRC_ANC_DATA = 2
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} AACDEC_DRC_PAYLOAD_TYPE;
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#define DVB_ANC_DATA_SYNC_BYTE (0xBC)
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typedef struct {
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WORD32 prog_ref_level;
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WORD16 n_mdct_bands[MAX_DRC_BANDS];
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WORD16 drc_fac[MAX_DRC_BANDS];
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WORD16 drc_fac_dvb[MAX_DRC_BANDS];
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WORD8 drc_exp;
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UWORD8 short_block;
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UWORD8 drc_interp_scheme;
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UWORD8 n_drc_bands;
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UWORD8 new_prog_ref_level;
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UWORD8 new_drc_fac;
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UWORD8 prev_interp_scheme;
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WORD32 drc_factors_sbr[SBR_QMF_SUB_SAMPLES][SBR_QMF_SUB_BANDS];
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} ixheaac_drc_data_struct;
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typedef struct {
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UWORD8 b_channel_on[MAX_AUDIO_CHANNELS];
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UWORD8 prog_ref_level_present;
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UWORD8 prog_ref_level;
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UWORD8 drc_num_bands;
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UWORD8 drc_band_top[MAX_DRC_BANDS];
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WORD8 dyn_rng_dlbl[MAX_DRC_BANDS];
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WORD8 dyn_rng_dlbl_dvb[MAX_DRC_BANDS];
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WORD8 max_dyn_rng_dlbl;
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UWORD8 drc_interpolation_scheme;
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WORD8 drc_data_type;
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} ixheaac_drc_bs_data_struct;
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typedef struct {
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ixheaac_drc_bs_data_struct str_drc_bs_data[MAX_BS_ELEMENT];
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ixheaac_drc_data_struct str_drc_channel_data[MAX_BS_ELEMENT];
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WORD16 drc_ref_level;
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WORD16 drc_def_level;
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UWORD8 drc_channel_next_index[MAX_BS_ELEMENT];
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UWORD8 sbr_allowed;
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UWORD8 sbr_found;
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UWORD8 drc_element_found;
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UWORD8 max_audio_channels;
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UWORD8 length_history;
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UWORD8 num_drc_elements;
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WORD32 state;
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WORD32 target_ref_level;
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WORD32 prog_ref_level;
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WORD32 cut_factor;
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WORD32 boost_factor;
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FLAG drc_dig_norm;
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FLAG drc_on;
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FLAG dvb_anc_data_present;
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WORD32 dvb_anc_data_pos;
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WORD32 pres_mode;
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WORD32 heavy_mode;
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} ia_drc_dec_struct;
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#endif
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