| /****************************************************************************** |
| * |
| * Copyright (C) 2015 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 IMPD_DRC_PEAK_LIMITER_STRUCT_H |
| #define IMPD_DRC_PEAK_LIMITER_STRUCT_H |
| |
| #define DEFAULT_ATTACK_TIME_MS (5.0f) /* default attack time in ms */ |
| #define DEFAULT_RELEASE_TIME_MS (50.0f) /* default release time in ms */ |
| |
| typedef struct ia_drc_peak_limiter_struct { |
| FLOAT32 attack_time; |
| FLOAT32 release_time; |
| FLOAT32 attack_constant; |
| FLOAT32 release_constant; |
| FLOAT32 limit_threshold; |
| UWORD32 num_channels; |
| UWORD32 sample_rate; |
| UWORD32 attack_time_samples; |
| UWORD32 limiter_on; |
| FLOAT32 gain_modified; |
| FLOAT64 pre_smoothed_gain; |
| FLOAT32* delayed_input; |
| UWORD32 delayed_input_index; |
| FLOAT32* max_buf; |
| FLOAT32 min_gain; |
| FLOAT32* buffer; |
| } ia_drc_peak_limiter_struct; |
| |
| #endif |