| /****************************************************************************** |
| * * |
| * 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_PNS_H |
| #define IXHEAACD_PNS_H |
| |
| #define PNS_BAND_FLAGS_SIZE 16 |
| #define PNS_BAND_FLAGS_MASK \ |
| ((WORD16)((((WORD16)1) << PNS_BAND_FLAGS_SHIFT) - 1)) |
| #define PNS_BAND_FLAGS_SHIFT 3 |
| |
| #define PNS_SCALE_MANT_TAB_SIZE 4 |
| #define PNS_SCALE_MANT_TAB_MASK (PNS_SCALE_MANT_TAB_SIZE - 1) |
| #define PNS_SCALE_MANT_TAB_SCALING -4 |
| |
| #define PNS_SCALEFACTOR_SCALING 2 |
| |
| #define PNS_SPEC_SCALE 3 |
| |
| typedef struct { |
| UWORD8 correlated[PNS_BAND_FLAGS_SIZE]; |
| WORD32 random_vector[PNS_BAND_FLAGS_SIZE * 8]; |
| } ia_pns_correlation_info_struct; |
| |
| typedef struct { |
| WORD32 current_seed; |
| WORD16 pns_frame_number; |
| } ia_pns_rand_vec_struct; |
| |
| typedef struct { |
| UWORD8 pns_used[PNS_BAND_FLAGS_SIZE * 8]; |
| WORD16 noise_energy; |
| UWORD16 pns_active; |
| } ia_pns_info_struct; |
| |
| #endif /* #ifndef IXHEAACD_PNS_H */ |