/****************************************************************************** * * * 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_MAX_CH_IN_BS_ELE (2) #define INPUT_LEN_DOWNSAMPLE (2048) #define UPSAMPLE_FAC (3) #define DOWNSAMPLE_FAC_2_1 (2) #define DOWNSAMPLE_FAC_4_1 (4) /* Constants */ #define MAX_FLT_VAL (3.402823466e+38F) #define MIN_FLT_VAL (1.175494351e-38F) #define EPS (1e-18) #define LOG2 (0.69314718056f) #define RELAXATION (1e-6f) #define SBR_NOISE_FLOOR_OFFSET (6) #define SBR_INV_LOG_2 (1.442695041f) #define SBR_EPS (1e-18) #define SBR_DECAY_GUIDE_DIFF (0.5f) #define SBR_THR_DIFF_GUIDE (1.26f) #define SBR_THR_DIFF (25.0f) #define SBR_THR_TONE (15.0f) #define SBR_INV_THR_TONE (1.0f / 15.0f) #define SBR_THR_TONE_GUIDE (1.26f) #define SBR_DECAY_GUIDE_ORIG (0.3f) #define SBR_THR_SFM_SBR (0.3f) #define SBR_THR_SFM_ORG (0.1f) #define SBR_MAX_COMP (2) #define SBR_TONALITY_QUOTA (0.1f) #define SBR_DIFF_QUOTA (0.75f) #define SBR_TON_MEAN_P0009 (0.000976562f) #define SBR_TON_MEAN_101P59 (101.5936673f) #define MAXIMUM_NOISE_ENVELOPES (2) #define MAXIMUM_NUM_NOISE_COEFFS (5) #define MAXIMUM_NUM_NOISE_VALUES (MAXIMUM_NOISE_ENVELOPES * MAXIMUM_NUM_NOISE_COEFFS) #define MAXIMUM_ENVELOPES_HEAAC (5) #define MAXIMUM_FREQ_COEFFS_HEAAC (48) #define MAXIMUM_FREQ_COEFFS_LE32KHZ (48) #define MAXIMUM_FREQ_COEFFS_EQ44KHZ (35) #define MAXIMUM_FREQ_COEFFS_GE48KHZ (32) #define MAXIMUM_NUM_ENV_VALUES_HEAAC (MAXIMUM_FREQ_COEFFS_HEAAC * MAXIMUM_ENVELOPES_HEAAC) #define IXHEAACE_QMF_CHANNELS (64) #define QMF_FILTER_LENGTH (640) #define CLD_FILTER_LENGTH (640) #define IXHEAACE_QMF_TIME_SLOTS (32) #define NO_OF_ESTIMATES (4) #define NO_OF_ESTIMATES_ELD (3) #define QMF_TIME_SLOTS_USAC_4_1 (64) #define MAX_QMF_TIME_SLOTS (64) #define MAXIMUM_FREQ_COEFFS_USAC (56) #define MAXIMUM_ENVELOPES_USAC (8) #define MAXIMUM_NUM_ENV_VALUES_USAC (MAXIMUM_FREQ_COEFFS_USAC * MAXIMUM_ENVELOPES_USAC) #if MAXIMUM_FREQ_COEFFS_HEAAC > MAXIMUM_FREQ_COEFFS_USAC #define MAXIMUM_FREQ_COEFFS (MAXIMUM_FREQ_COEFFS_HEAAC) #else #define MAXIMUM_FREQ_COEFFS (MAXIMUM_FREQ_COEFFS_USAC) #endif #if MAXIMUM_ENVELOPES_HEAAC > MAXIMUM_ENVELOPES_USAC #define IXHEAACE_MAX_ENV (MAXIMUM_ENVELOPES_HEAAC) #else #define IXHEAACE_MAX_ENV (MAXIMUM_ENVELOPES_USAC) #endif #if MAXIMUM_NUM_ENV_VALUES_HEAAC > MAXIMUM_NUM_ENV_VALUES_HEAAC #define MAXIMUM_NUM_ENVELOPE_VALUES (MAXIMUM_NUM_ENV_VALUES_HEAAC) #else #define MAXIMUM_NUM_ENVELOPE_VALUES (MAXIMUM_NUM_ENV_VALUES_USAC) #endif #define LOW_RES (0) #define HIGH_RES (1) #define LO (0) #define HI (1) #define SI_SBR_PROTOCOL_VERSION_ID (0) #define SBR_XPOS_CTRL_DEFAULT (2) #define SBR_FREQ_SCALE_DEFAULT (2) #define SBR_ALTER_SCALE_DEFAULT (1) #define SBR_NOISE_BANDS_DEFAULT (2) #define SBR_LIMITER_BANDS_DEFAULT (2) #define SBR_LIMITER_GAINS_DEFAULT (2) #define SBR_INTERPOL_FREQ_DEFAULT (1) #define SBR_SMOOTHING_LENGTH_DEFAULT (0) /* ESBR resampler Size*/ #define ESBR_RESAMP_SAMPLES (4096) /* spectral_band_replication_header */ #define SI_SBR_AMP_RES_BITS (1) #define SI_SBR_COUPLING_BITS (1) #define SI_SBR_START_FREQ_BITS (4) #define SI_SBR_STOP_FREQ_BITS (4) #define SI_SBR_XOVER_BAND_BITS (3) #define SI_SBR_RESERVED_BITS (2) #define SI_SBR_HEADER_EXTRA_1_BITS (1) #define SI_SBR_HEADER_EXTRA_2_BITS (1) #define SI_SBR_FREQ_SCALE_BITS (2) #define SI_SBR_ALTER_SCALE_BITS (1) #define SI_SBR_NOISE_BANDS_BITS (2) #define SBR_START_FREQ_OFFSET_TBL_LEN (1 << SI_SBR_START_FREQ_BITS) #define SBR_STOP_FREQ_OFFSET_TBL_LEN (14) #define SI_SBR_LIMITER_BANDS_BITS (2) #define SI_SBR_LIMITER_GAINS_BITS (2) #define SI_SBR_INTERPOL_FREQ_BITS (1) #define SI_SBR_SMOOTHING_LENGTH_BITS (1) /* spectral_band_replication_grid */ #define SBR_CLA_BITS (2) #define SBR_ENV_BITS (2) #define SBR_PVC_NOISE_POSITION_BITS (4) #define SBR_PVC_VAR_LEN_HF_BITS (1) #define SBR_ABS_BITS (2) #define SBR_NUM_BITS (2) #define SBR_REL_BITS (2) #define SBR_RES_BITS (1) #define SBR_DIR_BITS (1) #define LDSBR_CLA_BITS (1) /* spectral_band_replication_data */ #define SI_SBR_INVF_MODE_BITS (2) #define SI_SBR_START_ENV_BITS_AMP_RES_3_0 (6) #define SI_SBR_START_ENV_BITS_BALANCE_AMP_RES_3_0 (5) #define SI_SBR_START_NOISE_BITS_AMP_RES_3_0 (5) #define SI_SBR_START_NOISE_BITS_BALANCE_AMP_RES_3_0 (5) #define SI_SBR_START_ENV_BITS_AMP_RES_1_5 (7) #define SI_SBR_START_ENV_BITS_BALANCE_AMP_RES_1_5 (6) #define SI_SBR_EXTENDED_DATA_BITS (1) #define SI_SBR_EXTENSION_SIZE_BITS (4) #define SI_SBR_EXTENSION_ESC_COUNT_BITS (8) #define SI_SBR_EXTENSION_ID_BITS (2) #define SBR_EXTENDED_DATA_MAX_CNT (15 + 255) #define EXTENSION_ID_PS_CODING (2) #define EXTENSION_ID_ESBR_CODING (3) #define IXHEAACE_MPS_EXT_LDSAC_DATA (0x09) /* Envelope coding constants */ #define FREQ (0) #define TIME (1) /* huffman tables */ #define CODE_BCK_SCF_LAV10 (60) #define CODE_BCK_SCF_LAV11 (31) #define CODE_BCK_SCF_LAV_BALANCE11 (12) #define CODE_BCK_SCF_LAV_BALANCE10 (24) #define USAC_SBR_RATIO_NO_SBR (0) #define USAC_SBR_RATIO_INDEX_2_1 (3) #define USAC_SBR_RATIO_INDEX_8_3 (2) #define USAC_SBR_RATIO_INDEX_4_1 (1) #define USAC_SBR_DOWNSAMPLE_RATIO_2_1 (2) #define USAC_SBR_DOWNSAMPLE_RATIO_4_1 (4) #define IXHEAACE_DISTANCE_CEIL_VALUE (5000000) typedef enum { IXHEAACE_XPOS_MDCT, IXHEAACE_XPOS_MDCT_CROSS, IXHEAACE_XPOS_LC, IXHEAACE_XPOS_RESERVED, IXHEAACE_XPOS_SWITCHED } ixheaace_sbr_xpos_mode; typedef enum { FREQ_RES_LOW, FREQ_RES_HIGH } ixheaace_freq_res; typedef enum { IXHEAACE_SBR_MODE_MONO, IXHEAACE_SBR_MODE_LEFT_RIGHT, SBR_COUPLING, IXHEAACE_SBR_MODE_SWITCH_LRC } ixheaace_sbr_stereo_mode; typedef enum { HEAAC_SBR, ELD_SBR, USAC_SBR } ixheaace_sbr_codec_type;