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112 lines
3.3 KiB
112 lines
3.3 KiB
/*
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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_EFFECTSFACTORY_H_
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#define ANDROID_EFFECTSFACTORY_H_
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#include <dirent.h>
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#include <pthread.h>
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#include <cutils/compiler.h>
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#include <hardware/audio_effect.h>
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#if __cplusplus
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extern "C" {
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#endif
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#define EFFECT_LIBRARY_API_VERSION_CURRENT EFFECT_LIBRARY_API_VERSION_3_1
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#define PROPERTY_IGNORE_EFFECTS "ro.audio.ignore_effects"
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typedef struct list_elem_s {
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void *object;
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struct list_elem_s *next;
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} list_elem_t;
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// Structure used for storing effects with their sub effects.
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// Used in creating gSubEffectList. Here,
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// object holds the effect desc and the list sub_elem holds the sub effects
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typedef struct list_sub_elem_s {
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void *object;
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list_elem_t *sub_elem;
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struct list_sub_elem_s *next;
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} list_sub_elem_t;
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typedef struct lib_entry_s {
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audio_effect_library_t *desc;
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char *name;
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char *path;
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void *handle;
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list_elem_t *effects; //list of effect_descriptor_t
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pthread_mutex_t lock;
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} lib_entry_t;
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typedef struct effect_entry_s {
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struct effect_interface_s *itfe;
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effect_handle_t subItfe;
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lib_entry_t *lib;
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} effect_entry_t;
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typedef struct lib_failed_entry_s {
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char *name;
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char *path;
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} lib_failed_entry_t;
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// Structure used to store the lib entry
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// and the descriptor of the sub effects.
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// The library entry is to be stored in case of
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// sub effects as the sub effects are not linked
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// to the library list - gLibraryList.
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typedef struct sub_effect_entry_s {
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lib_entry_t *lib;
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void *object;
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} sub_effect_entry_t;
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////////////////////////////////////////////////////////////////////////////////
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//
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// Function: EffectGetSubEffects
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//
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// Description: Returns the descriptors of the sub effects of the effect
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// whose uuid is pointed to by first argument.
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//
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// Input:
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// pEffectUuid: pointer to the effect uuid.
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// size: max number of sub_effect_entry_t * in pSube.
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//
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// Input/Output:
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// pSube: address where to return the sub effect structures.
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// Output:
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// returned value: 0 successful operation.
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// -ENODEV factory failed to initialize
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// -EINVAL invalid pEffectUuid or pDescriptor
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// -ENOENT no effect with this uuid found
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// *pDescriptor: updated with the sub effect descriptors.
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//
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////////////////////////////////////////////////////////////////////////////////
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ANDROID_API
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int EffectGetSubEffects(const effect_uuid_t *pEffectUuid,
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sub_effect_entry_t **pSube,
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size_t size);
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#if __cplusplus
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} // extern "C"
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#endif
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#endif /*ANDROID_EFFECTSFACTORY_H_*/
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