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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef OFFLOAD_REVERB_H_
     18 #define OFFLOAD_REVERB_H_
     19 
     20 #include "bundle.h"
     21 
     22 #define REVERB_DEFAULT_PRESET REVERB_PRESET_NONE
     23 
     24 extern const effect_descriptor_t aux_env_reverb_descriptor;
     25 extern const effect_descriptor_t ins_env_reverb_descriptor;
     26 extern const effect_descriptor_t aux_preset_reverb_descriptor;
     27 extern const effect_descriptor_t ins_preset_reverb_descriptor;
     28 
     29 typedef struct reverb_settings_s {
     30     int16_t     roomLevel;
     31     int16_t     roomHFLevel;
     32     uint32_t    decayTime;
     33     int16_t     decayHFRatio;
     34     int16_t     reflectionsLevel;
     35     uint32_t    reflectionsDelay;
     36     int16_t     reverbLevel;
     37     uint32_t    reverbDelay;
     38     int16_t     diffusion;
     39     int16_t     density;
     40 } reverb_settings_t;
     41 
     42 typedef struct reverb_context_s {
     43     effect_context_t common;
     44 
     45     // Offload vars
     46     struct mixer_ctl *ctl;
     47     bool auxiliary;
     48     bool preset;
     49     uint16_t cur_preset;
     50     uint16_t next_preset;
     51     reverb_settings_t reverb_settings;
     52     uint32_t device;
     53     struct reverb_params offload_reverb;
     54 } reverb_context_t;
     55 
     56 
     57 void reverb_auxiliary_init(reverb_context_t *context);
     58 
     59 void reverb_preset_init(reverb_context_t *context);
     60 
     61 void reverb_insert_init(reverb_context_t *context);
     62 
     63 int reverb_get_parameter(effect_context_t *context, effect_param_t *p,
     64                             uint32_t *size);
     65 
     66 int reverb_set_parameter(effect_context_t *context, effect_param_t *p,
     67                             uint32_t size);
     68 
     69 int reverb_set_device(effect_context_t *context,  uint32_t device);
     70 
     71 int reverb_reset(effect_context_t *context);
     72 
     73 int reverb_init(effect_context_t *context);
     74 
     75 int reverb_enable(effect_context_t *context);
     76 
     77 int reverb_disable(effect_context_t *context);
     78 
     79 int reverb_start(effect_context_t *context, output_context_t *output);
     80 
     81 int reverb_stop(effect_context_t *context, output_context_t *output);
     82 
     83 #endif /* OFFLOAD_REVERB_H_ */
     84