1 /* 2 * Copyright (c) 2013, The Linux Foundation. All rights reserved. 3 * Not a Contribution. 4 * 5 * Copyright (C) 2013 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #ifndef OFFLOAD_EQUALIZER_H_ 21 #define OFFLOAD_EQUALIZER_H_ 22 23 #include "bundle.h" 24 25 #define NUM_EQ_BANDS 5 26 #define INVALID_PRESET -2 27 #define PRESET_CUSTOM -1 28 29 extern const effect_descriptor_t equalizer_descriptor; 30 31 typedef struct equalizer_context_s { 32 effect_context_t common; 33 34 int preset; 35 int band_levels[NUM_EQ_BANDS]; 36 37 // Offload vars 38 struct mixer_ctl *ctl; 39 uint32_t device; 40 struct eq_params offload_eq; 41 } equalizer_context_t; 42 43 int equalizer_get_parameter(effect_context_t *context, effect_param_t *p, 44 uint32_t *size); 45 46 int equalizer_set_parameter(effect_context_t *context, effect_param_t *p, 47 uint32_t size); 48 49 int equalizer_set_device(effect_context_t *context, uint32_t device); 50 51 int equalizer_reset(effect_context_t *context); 52 53 int equalizer_init(effect_context_t *context); 54 55 int equalizer_enable(effect_context_t *context); 56 57 int equalizer_disable(effect_context_t *context); 58 59 int equalizer_start(effect_context_t *context, output_context_t *output); 60 61 int equalizer_stop(effect_context_t *context, output_context_t *output); 62 63 #endif /*OFFLOAD_EQUALIZER_H_*/ 64
