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/*
* Copyright (C) 2010 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.
*/
#ifndef ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_
#define ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_
#include <hardware/audio_effect.h>
#if __cplusplus
extern "C" {
#endif
#ifndef OPENSL_ES_H_
static const effect_uuid_t SL_IID_ENVIRONMENTALREVERB_ = { 0xc2e5d5f0, 0x94bd, 0x4763, 0x9cac, { 0x4e, 0x23, 0x4d, 0x6, 0x83, 0x9e } };
const effect_uuid_t * const SL_IID_ENVIRONMENTALREVERB = &SL_IID_ENVIRONMENTALREVERB_;
#endif //OPENSL_ES_H_
/* enumerated parameter settings for environmental reverb effect */
typedef enum
{
// Parameters below are as defined in OpenSL ES specification for environmental reverb interface
REVERB_PARAM_ROOM_LEVEL, // in millibels, range -6000 to 0
REVERB_PARAM_ROOM_HF_LEVEL, // in millibels, range -4000 to 0
REVERB_PARAM_DECAY_TIME, // in milliseconds, range 100 to 20000
REVERB_PARAM_DECAY_HF_RATIO, // in permilles, range 100 to 1000
REVERB_PARAM_REFLECTIONS_LEVEL, // in millibels, range -6000 to 0
REVERB_PARAM_REFLECTIONS_DELAY, // in milliseconds, range 0 to 65
REVERB_PARAM_REVERB_LEVEL, // in millibels, range -6000 to 0
REVERB_PARAM_REVERB_DELAY, // in milliseconds, range 0 to 65
REVERB_PARAM_DIFFUSION, // in permilles, range 0 to 1000
REVERB_PARAM_DENSITY, // in permilles, range 0 to 1000
REVERB_PARAM_PROPERTIES,
REVERB_PARAM_BYPASS
} t_env_reverb_params;
//t_reverb_settings is equal to SLEnvironmentalReverbSettings defined in OpenSL ES specification.
typedef struct s_reverb_settings {
int16_t roomLevel;
int16_t roomHFLevel;
uint32_t decayTime;
int16_t decayHFRatio;
int16_t reflectionsLevel;
uint32_t reflectionsDelay;
int16_t reverbLevel;
uint32_t reverbDelay;
int16_t diffusion;
int16_t density;
} __attribute__((packed)) t_reverb_settings;
#if __cplusplus
} // extern "C"
#endif
#endif /*ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_*/
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