2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_
18 #define ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_
20 #include <media/EffectApi.h>
27 static const effect_uuid_t SL_IID_ENVIRONMENTALREVERB_ = { 0xc2e5d5f0, 0x94bd, 0x4763, 0x9cac, { 0x4e, 0x23, 0x4d, 0x6, 0x83, 0x9e } };
28 const effect_uuid_t * const SL_IID_ENVIRONMENTALREVERB = &SL_IID_ENVIRONMENTALREVERB_;
31 /* enumerated parameter settings for environmental reverb effect */
34 // Parameters below are as defined in OpenSL ES specification for environmental reverb interface
35 REVERB_PARAM_ROOM_LEVEL, // in millibels, range -6000 to 0
36 REVERB_PARAM_ROOM_HF_LEVEL, // in millibels, range -4000 to 0
37 REVERB_PARAM_DECAY_TIME, // in milliseconds, range 100 to 20000
38 REVERB_PARAM_DECAY_HF_RATIO, // in permilles, range 100 to 1000
39 REVERB_PARAM_REFLECTIONS_LEVEL, // in millibels, range -6000 to 0
40 REVERB_PARAM_REFLECTIONS_DELAY, // in milliseconds, range 0 to 65
41 REVERB_PARAM_REVERB_LEVEL, // in millibels, range -6000 to 0
42 REVERB_PARAM_REVERB_DELAY, // in milliseconds, range 0 to 65
43 REVERB_PARAM_DIFFUSION, // in permilles, range 0 to 1000
44 REVERB_PARAM_DENSITY, // in permilles, range 0 to 1000
45 REVERB_PARAM_PROPERTIES,
47 } t_env_reverb_params;
49 //t_reverb_settings is equal to SLEnvironmentalReverbSettings defined in OpenSL ES specification.
50 typedef struct s_reverb_settings {
55 int16_t reflectionsLevel;
56 uint32_t reflectionsDelay;
61 } __attribute__((packed)) t_reverb_settings;
69 #endif /*ANDROID_EFFECTENVIRONMENTALREVERBAPI_H_*/