59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_EFFECTEQUALIZERAPI_H_
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#define ANDROID_EFFECTEQUALIZERAPI_H_
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#include <media/EffectApi.h>
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#ifndef OPENSL_ES_H_
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static const effect_uuid_t SL_IID_EQUALIZER_ = { 0x0bed4300, 0xddd6, 0x11db, 0x8f34, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
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const effect_uuid_t * const SL_IID_EQUALIZER = &SL_IID_EQUALIZER_;
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#endif //OPENSL_ES_H_
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#if __cplusplus
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extern "C" {
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#endif
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/* enumerated parameters for Equalizer effect */
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typedef enum
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{
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EQ_PARAM_NUM_BANDS, // Gets the number of frequency bands that the equalizer supports.
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EQ_PARAM_LEVEL_RANGE, // Returns the minimum and maximum band levels supported.
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EQ_PARAM_BAND_LEVEL, // Gets/Sets the gain set for the given equalizer band.
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EQ_PARAM_CENTER_FREQ, // Gets the center frequency of the given band.
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EQ_PARAM_BAND_FREQ_RANGE, // Gets the frequency range of the given frequency band.
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EQ_PARAM_GET_BAND, // Gets the band that has the most effect on the given frequency.
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EQ_PARAM_CUR_PRESET, // Gets/Sets the current preset.
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EQ_PARAM_GET_NUM_OF_PRESETS, // Gets the total number of presets the equalizer supports.
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EQ_PARAM_GET_PRESET_NAME, // Gets the preset name based on the index.
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EQ_PARAM_PROPERTIES // Gets/Sets all parameters at a time.
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} t_equalizer_params;
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//t_equalizer_settings groups all current equalizer setting for backup and restore.
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typedef struct s_equalizer_settings {
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uint16_t curPreset;
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uint16_t numBands;
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uint16_t bandLevels[];
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} t_equalizer_settings;
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#if __cplusplus
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} // extern "C"
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#endif
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#endif /*ANDROID_EFFECTEQUALIZERAPI_H_*/
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