Eric Laurent | 9630925 | 2011-06-17 09:02:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 ANDROID_EFFECT_EQUALIZER_H_ |
| 18 | #define ANDROID_EFFECT_EQUALIZER_H_ |
| 19 | |
| 20 | #include <hardware/audio_effect.h> |
| 21 | |
| 22 | #ifndef OPENSL_ES_H_ |
Glenn Kasten | 548d9cf | 2012-11-02 07:59:08 -0700 | [diff] [blame] | 23 | static const effect_uuid_t SL_IID_EQUALIZER_ = { 0x0bed4300, 0xddd6, 0x11db, 0x8f34, |
| 24 | { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; |
Eric Laurent | 9630925 | 2011-06-17 09:02:12 -0700 | [diff] [blame] | 25 | const effect_uuid_t * const SL_IID_EQUALIZER = &SL_IID_EQUALIZER_; |
| 26 | #endif //OPENSL_ES_H_ |
| 27 | |
| 28 | #if __cplusplus |
| 29 | extern "C" { |
| 30 | #endif |
| 31 | |
| 32 | /* enumerated parameters for Equalizer effect */ |
| 33 | typedef enum |
| 34 | { |
Glenn Kasten | 548d9cf | 2012-11-02 07:59:08 -0700 | [diff] [blame] | 35 | EQ_PARAM_NUM_BANDS, // Gets the number of frequency bands that the equalizer |
| 36 | // supports. |
Eric Laurent | 9630925 | 2011-06-17 09:02:12 -0700 | [diff] [blame] | 37 | EQ_PARAM_LEVEL_RANGE, // Returns the minimum and maximum band levels supported. |
| 38 | EQ_PARAM_BAND_LEVEL, // Gets/Sets the gain set for the given equalizer band. |
| 39 | EQ_PARAM_CENTER_FREQ, // Gets the center frequency of the given band. |
| 40 | EQ_PARAM_BAND_FREQ_RANGE, // Gets the frequency range of the given frequency band. |
Glenn Kasten | 548d9cf | 2012-11-02 07:59:08 -0700 | [diff] [blame] | 41 | EQ_PARAM_GET_BAND, // Gets the band that has the most effect on the given |
| 42 | // frequency. |
Eric Laurent | 9630925 | 2011-06-17 09:02:12 -0700 | [diff] [blame] | 43 | EQ_PARAM_CUR_PRESET, // Gets/Sets the current preset. |
| 44 | EQ_PARAM_GET_NUM_OF_PRESETS, // Gets the total number of presets the equalizer supports. |
| 45 | EQ_PARAM_GET_PRESET_NAME, // Gets the preset name based on the index. |
| 46 | EQ_PARAM_PROPERTIES // Gets/Sets all parameters at a time. |
| 47 | } t_equalizer_params; |
| 48 | |
| 49 | //t_equalizer_settings groups all current equalizer setting for backup and restore. |
| 50 | typedef struct s_equalizer_settings { |
| 51 | uint16_t curPreset; |
| 52 | uint16_t numBands; |
| 53 | uint16_t bandLevels[]; |
| 54 | } t_equalizer_settings; |
| 55 | |
| 56 | #if __cplusplus |
| 57 | } // extern "C" |
| 58 | #endif |
| 59 | |
| 60 | |
| 61 | #endif /*ANDROID_EFFECT_EQUALIZER_H_*/ |