1 /****************************************************************************** 2 * * 3 * Copyright (C) 2018 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 #ifndef IXHEAACD_MPS_DECOR_H 21 #define IXHEAACD_MPS_DECOR_H 22 23 #define DECOR_ALPHA (0.8f) 24 #define ONE_MINUS_DECOR_ALPHA (1 - DECOR_ALPHA) 25 #define DECOR_GAMMA (1.5f) 26 27 #define DUCK_ALPHA (26214) 28 #define DUCK_GAMMA (24576) 29 #define DUCK_ONEMINUSALPHA (6554) 30 31 enum { 32 REVERB_BAND_0 = 0, 33 REVERB_BAND_1 = 1, 34 REVERB_BAND_2 = 2, 35 REVERB_BAND_3 = 3 36 }; 37 38 enum { DECOR_CONFIG_0 = 0, DECOR_CONFIG_1 = 1, DECOR_CONFIG_2 = 2 }; 39 40 struct ia_mps_dec_ducker_interface { 41 VOID(*apply) 42 (ia_mps_dec_ducker_interface *const self, WORD32 const time_slots, 43 WORD32 const *input_real, WORD32 const *input_imag, WORD32 *output_real, 44 WORD32 *output_imag, ia_mps_dec_mps_tables_struct *ia_mps_dec_mps_table_ptr, 45 VOID *scratch); 46 }; 47 48 typedef struct { 49 WORD32 hybrid_bands; 50 WORD32 parameter_bands; 51 WORD32 alpha; 52 WORD32 one_minus_alpha; 53 WORD32 gamma; 54 WORD32 abs_thr; 55 WORD16 qalpha; 56 WORD16 qgamma; 57 WORD32 smooth_direct_nrg[MAX_PARAMETER_BANDS]; 58 WORD32 smooth_reverb_nrg[MAX_PARAMETER_BANDS]; 59 WORD16 q_smooth_direct_nrg[MAX_PARAMETER_BANDS]; 60 WORD16 q_smooth_reverb_nrg[MAX_PARAMETER_BANDS]; 61 } ia_mps_dec_duck_instance_struct; 62 63 VOID ixheaacd_decorr_apply(ia_heaac_mps_state_struct *pstr_mps_state, WORD32 length, 64 WORD32 *input_real, WORD32 *input_imag, 65 WORD32 *output_real, WORD32 *output_imag, 66 WORD32 index); 67 68 WORD32 ixheaacd_decorr_create( 69 ia_mps_dec_decorr_dec_handle hDecorrDec, WORD32 subbands, WORD32 seed, 70 WORD32 dec_type, WORD32 decorr_config, 71 ia_mps_dec_mps_tables_struct *ia_mps_dec_mps_table); 72 73 IA_ERRORCODE ixheaacd_mps_decor_init(ia_mps_decor_struct *, WORD32, WORD32, WORD32); 74 75 VOID ixheaacd_mps_decor_apply( 76 ia_mps_decor_struct *self, 77 ia_cmplx_flt_struct in[MAX_TIME_SLOTS][MAX_HYBRID_BANDS_MPS], 78 ia_cmplx_flt_struct out[MAX_TIME_SLOTS][MAX_HYBRID_BANDS_MPS], 79 WORD32 length, WORD32 res_bands, WORD32 ldmps_present); 80 81 #endif /* IXHEAACD_MPS_DECOR_H */ 82