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89 lines
3.0 KiB
89 lines
3.0 KiB
/* |
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* Copyright (C) 2014 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 OFFLOAD_EFFECT_BUNDLE_H |
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#define OFFLOAD_EFFECT_BUNDLE_H |
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#include <tinyalsa/asoundlib.h> |
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#include <sound/audio_effects.h> |
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#include "effect_api.h" |
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/* Retry for delay for mixer open */ |
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#define RETRY_NUMBER 10 |
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#define RETRY_US 500000 |
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#define MIXER_CARD 0 |
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#define SOUND_CARD 0 |
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extern const struct effect_interface_s effect_interface; |
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typedef struct output_context_s output_context_t; |
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typedef struct effect_ops_s effect_ops_t; |
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typedef struct effect_context_s effect_context_t; |
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struct output_context_s { |
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/* node in active_outputs_list */ |
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struct listnode outputs_list_node; |
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/* io handle */ |
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audio_io_handle_t handle; |
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/* list of effects attached to this output */ |
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struct listnode effects_list; |
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/* pcm device id */ |
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int pcm_device_id; |
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struct mixer *mixer; |
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struct mixer_ctl *ctl; |
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}; |
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/* effect specific operations. |
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* Only the init() and process() operations must be defined. |
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* Others are optional. |
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*/ |
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struct effect_ops_s { |
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int (*init)(effect_context_t *context); |
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int (*release)(effect_context_t *context); |
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int (*reset)(effect_context_t *context); |
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int (*enable)(effect_context_t *context); |
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int (*start)(effect_context_t *context, output_context_t *output); |
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int (*stop)(effect_context_t *context, output_context_t *output); |
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int (*disable)(effect_context_t *context); |
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int (*process)(effect_context_t *context, audio_buffer_t *in, audio_buffer_t *out); |
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int (*set_parameter)(effect_context_t *context, effect_param_t *param, uint32_t size); |
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int (*get_parameter)(effect_context_t *context, effect_param_t *param, uint32_t *size); |
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int (*set_device)(effect_context_t *context, uint32_t device); |
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int (*command)(effect_context_t *context, uint32_t cmdCode, uint32_t cmdSize, |
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void *pCmdData, uint32_t *replySize, void *pReplyData); |
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}; |
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struct effect_context_s { |
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const struct effect_interface_s *itfe; |
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/* node in created_effects_list */ |
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struct listnode effects_list_node; |
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/* node in output_context_t.effects_list */ |
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struct listnode output_node; |
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effect_config_t config; |
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const effect_descriptor_t *desc; |
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/* io handle of the output the effect is attached to */ |
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audio_io_handle_t out_handle; |
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uint32_t state; |
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bool offload_enabled; |
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effect_ops_t ops; |
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}; |
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int set_config(effect_context_t *context, effect_config_t *config); |
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bool effect_is_active(effect_context_t *context); |
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#endif /* OFFLOAD_EFFECT_BUNDLE_H */
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