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/*
* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright (C) 2011 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 QAHW_EFFECT_EQUALIZER_H_
#define QAHW_EFFECT_EQUALIZER_H_
#include <qahw_effect_api.h>
#ifdef __cplusplus
extern "C" {
#endif
#define QAHW_EFFECT_EQUALIZER_LIBRARY "libqcompostprocbundle.so"
static const qahw_effect_uuid_t SL_IID_EQUALIZER_ = { 0x0bed4300, 0xddd6, 0x11db, 0x8f34,
{ 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
static const qahw_effect_uuid_t * const SL_IID_EQUALIZER = &SL_IID_EQUALIZER_;
static const qahw_effect_uuid_t SL_IID_EQUALIZER_UUID_ = { 0xa0dac280, 0x401c, 0x11e3, 0x9379,
{ 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
static const qahw_effect_uuid_t * const SL_IID_EQUALIZER_UUID = &SL_IID_EQUALIZER_UUID_;
/* enumerated parameters for Equalizer effect */
typedef enum
{
EQ_PARAM_NUM_BANDS, // Gets the number of frequency bands that the equalizer
// supports.
EQ_PARAM_LEVEL_RANGE, // Returns the minimum and maximum band levels supported.
EQ_PARAM_BAND_LEVEL, // Gets/Sets the gain set for the given equalizer band.
EQ_PARAM_CENTER_FREQ, // Gets the center frequency of the given band.
EQ_PARAM_BAND_FREQ_RANGE, // Gets the frequency range of the given frequency band.
EQ_PARAM_GET_BAND, // Gets the band that has the most effect on the given
// frequency.
EQ_PARAM_CUR_PRESET, // Gets/Sets the current preset.
EQ_PARAM_GET_NUM_OF_PRESETS, // Gets the total number of presets the equalizer supports.
EQ_PARAM_GET_PRESET_NAME, // Gets the preset name based on the index.
EQ_PARAM_PROPERTIES, // Gets/Sets all parameters at a time.
EQ_PARAM_LATENCY = 0x80000000 // Internal paramter specific to qahw.
// Used to get latency introduced by equalizer effect.
} qahw_equalizer_params;
enum
{
EQ_PRESET_NORMAL = 0,
EQ_PRESET_CLASSICAL,
EQ_PRESET_DANCE,
EQ_PRESET_FLAT,
EQ_PRESET_FOLK,
EQ_PRESET_HEAVY_METAL,
EQ_PRESET_HIPHOP,
EQ_PRESET_JAZZ,
EQ_PRESET_POP,
EQ_PRESET_ROCK,
EQ_PRESET_FX_BOOSTER,
EQ_PRESET_LAST = EQ_PRESET_FX_BOOSTER
};
//qahw_equalizer_settings groups all current equalizer setting for backup and restore.
typedef struct s_equalizer_settings {
uint16_t curPreset;
uint16_t numBands;
uint16_t bandLevels[];
} qahw_equalizer_settings;
#ifdef __cplusplus
} // extern "C"
#endif
#endif /*QAHW_EFFECT_EQUALIZER_H_*/
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