844 lines
41 KiB
C
844 lines
41 KiB
C
/*
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* Copyright (c) 2017, The Linux Foundation. All rights reserved.
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* Not a Contribution.
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*
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* Copyright (C) 2011 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_AUDIO_QAHW_EFFECT_H
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#define ANDROID_AUDIO_QAHW_EFFECT_H
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#include <errno.h>
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#include <stdint.h>
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#include <strings.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <cutils/bitops.h>
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#include <system/audio.h>
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__BEGIN_DECLS
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#define QAHW_EFFECT_API_VERSION_0_0 QAHW_MAKE_API_VERSION(0, 0)
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#define QAHW_EFFECT_API_VERSION_MIN QAHW_EFFECT_API_VERSION_0_0
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/////////////////////////////////////////////////
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// Common Definitions
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/////////////////////////////////////////////////
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//
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//--- Effect descriptor structure qahw_effect_descriptor_t
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//
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// Unique effect ID (can be generated from the following site:
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// http://www.itu.int/ITU-T/asn1/uuid.html)
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// This format is used for both "type" and "uuid" fields of the effect descriptor structure.
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// - When used for effect type and the engine is implementing and effect corresponding to a standard
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// OpenSL ES interface, this ID must be the one defined in OpenSLES_IID.h for that interface.
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// - When used as uuid, it should be a unique UUID for this particular implementation.
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typedef struct qahw_effect_uuid_s {
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uint32_t timeLow;
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uint16_t timeMid;
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uint16_t timeHiAndVersion;
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uint16_t clockSeq;
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uint8_t node[6];
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} qahw_effect_uuid_t;
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// Maximum length of character strings in structures defines by this API.
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#define QAHW_EFFECT_STRING_LEN_MAX 64
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// NULL UUID definition (matches SL_IID_NULL_)
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#define QAHW_EFFECT_UUID_INITIALIZER { 0xec7178ec, 0xe5e1, 0x4432, 0xa3f4, \
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{ 0x46, 0x57, 0xe6, 0x79, 0x52, 0x10 } }
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static const qahw_effect_uuid_t QAHW_EFFECT_UUID_NULL_ = QAHW_EFFECT_UUID_INITIALIZER;
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static const qahw_effect_uuid_t * const QAHW_EFFECT_UUID_NULL = &QAHW_EFFECT_UUID_NULL_;
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static const char * const QAHW_EFFECT_UUID_NULL_STR = "ec7178ec-e5e1-4432-a3f4-4657e6795210";
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// The effect descriptor contains necessary information to facilitate the enumeration of the effect
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// engines present in a library.
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typedef struct qahw_effect_descriptor_s {
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qahw_effect_uuid_t type; // UUID of to the OpenSL ES interface implemented by this effect
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qahw_effect_uuid_t uuid; // UUID for this particular implementation
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uint32_t apiVersion; // Version of the effect control API implemented
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uint32_t flags; // effect engine capabilities/requirements flags (see below)
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uint16_t cpuLoad; // CPU load indication (see below)
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uint16_t memoryUsage; // Data Memory usage (see below)
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char name[QAHW_EFFECT_STRING_LEN_MAX]; // human readable effect name
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char implementor[QAHW_EFFECT_STRING_LEN_MAX]; // human readable effect implementor name
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} qahw_effect_descriptor_t;
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#define QAHW_EFFECT_MAKE_API_VERSION(M, m) (((M)<<16) | ((m) & 0xFFFF))
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#define QAHW_EFFECT_API_VERSION_MAJOR(v) ((v)>>16)
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#define QAHW_EFFECT_API_VERSION_MINOR(v) ((m) & 0xFFFF)
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/////////////////////////////////////////////////
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// Effect control interface
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/////////////////////////////////////////////////
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// Effect control interface version 2.0
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#define QAHW_EFFECT_CONTROL_API_VERSION QAHW_EFFECT_MAKE_API_VERSION(2,0)
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typedef void* qahw_effect_handle_t;
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// Forward definition of type qahw_audio_buffer_t
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typedef struct qahw_audio_buffer_s qahw_audio_buffer_t;
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//
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//--- Standardized command codes for command() function
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//
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enum qahw_effect_command_e {
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QAHW_EFFECT_CMD_INIT, // initialize effect engine
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QAHW_EFFECT_CMD_SET_CONFIG, // configure effect engine (see effect_config_t)
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QAHW_EFFECT_CMD_RESET, // reset effect engine
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QAHW_EFFECT_CMD_ENABLE, // enable effect process
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QAHW_EFFECT_CMD_DISABLE, // disable effect process
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QAHW_EFFECT_CMD_SET_PARAM, // set parameter immediately (see effect_param_t)
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QAHW_EFFECT_CMD_SET_PARAM_DEFERRED, // set parameter deferred
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QAHW_EFFECT_CMD_SET_PARAM_COMMIT, // commit previous set parameter deferred
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QAHW_EFFECT_CMD_GET_PARAM, // get parameter
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QAHW_EFFECT_CMD_SET_DEVICE, // set audio device (see audio.h, audio_devices_t)
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QAHW_EFFECT_CMD_SET_VOLUME, // set volume
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QAHW_EFFECT_CMD_SET_AUDIO_MODE, // set the audio mode (normal, ring, ...)
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QAHW_EFFECT_CMD_SET_CONFIG_REVERSE, // configure effect engine reverse stream
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// (see effect_config_t)
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QAHW_EFFECT_CMD_SET_INPUT_DEVICE, // set capture device (see audio.h, audio_devices_t)
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QAHW_EFFECT_CMD_GET_CONFIG, // read effect engine configuration
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QAHW_EFFECT_CMD_GET_CONFIG_REVERSE, // read configure effect engine reverse stream
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// configuration
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QAHW_EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS, // get all supported configurations for
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// a feature.
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QAHW_EFFECT_CMD_GET_FEATURE_CONFIG, // get current feature configuration
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QAHW_EFFECT_CMD_SET_FEATURE_CONFIG, // set current feature configuration
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QAHW_EFFECT_CMD_SET_AUDIO_SOURCE, // set the audio source (see audio.h, audio_source_t)
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QAHW_EFFECT_CMD_OFFLOAD, // set if effect thread is an offload one,
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// send the ioHandle of the effect thread
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QAHW_EFFECT_CMD_FIRST_PROPRIETARY = 0x10000 // first proprietary command code
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};
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_INIT
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//--------------------------------------------------------------------------------------------------
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// description:
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// Initialize effect engine: All configurations return to default
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_CONFIG
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//--------------------------------------------------------------------------------------------------
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// description:
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// Apply new audio parameters configurations for input and output buffers
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_config_t)
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// data: effect_config_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_RESET
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//--------------------------------------------------------------------------------------------------
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// description:
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// Reset the effect engine. Keep configuration but resets state and buffer content
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_ENABLE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Enable the process. Called by the framework before the first call to process()
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_DISABLE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Disable the process. Called by the framework after the last call to process()
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_PARAM
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set a parameter and apply it immediately
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_param_t) + size of param and value
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// data: effect_param_t + param + value. See effect_param_t definition below for value offset
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_PARAM_DEFERRED
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set a parameter but apply it only when receiving QAHW_EFFECT_CMD_SET_PARAM_COMMIT command
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_param_t) + size of param and value
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// data: effect_param_t + param + value. See effect_param_t definition below for value offset
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_PARAM_COMMIT
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//--------------------------------------------------------------------------------------------------
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// description:
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// Apply all previously received QAHW_EFFECT_CMD_SET_PARAM_DEFERRED commands
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_GET_PARAM
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//--------------------------------------------------------------------------------------------------
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// description:
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// Get a parameter value
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_param_t) + size of param
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// data: effect_param_t + param
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(effect_param_t) + size of param and value
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// data: effect_param_t + param + value. See effect_param_t definition below for value offset
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_DEVICE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set the rendering device the audio output path is connected to. See audio.h, audio_devices_t
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// for device values.
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// The effect implementation must set QAHW_EFFECT_FLAG_DEVICE_IND flag in its descriptor to
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// receive this command when the device changes
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t)
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// data: uint32_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_VOLUME
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set and get volume. Used by audio framework to delegate volume control to effect engine.
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// The effect implementation must set QAHW_EFFECT_FLAG_VOLUME_IND or QAHW_EFFECT_FLAG_VOLUME_CTRL
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// flag in its descriptor to receive this command before every call to process() function
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// If QAHW_EFFECT_FLAG_VOLUME_CTRL flag is set in the effect descriptor, the effect engine must
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// return the volume that should be applied before the effect is processed. The overall volume
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// (the volume actually applied by the effect engine multiplied by the returned value) should
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// match the value indicated in the command.
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: n * sizeof(uint32_t)
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// data: volume for each channel defined in effect_config_t for output buffer expressed in
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// 8.24 fixed point format
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: n * sizeof(uint32_t) / 0
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// data: - if QAHW_EFFECT_FLAG_VOLUME_CTRL is set in effect descriptor:
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// volume for each channel defined in effect_config_t for output buffer expressed in
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// 8.24 fixed point format
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// - if QAHW_EFFECT_FLAG_VOLUME_CTRL is not set in effect descriptor:
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// N/A
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// It is legal to receive a null pointer as pReplyData in which case the effect framework has
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// delegated volume control to another effect
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_AUDIO_MODE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set the audio mode. The effect implementation must set QAHW_EFFECT_FLAG_AUDIO_MODE_IND flag
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// in its descriptor to receive this command when the audio mode changes.
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t)
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// data: audio_mode_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_CONFIG_REVERSE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Apply new audio parameters configurations for input and output buffers of reverse stream.
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// An example of reverse stream is the echo reference supplied to an Acoustic Echo Canceler.
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_config_t)
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// data: effect_config_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(int)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_INPUT_DEVICE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set the capture device the audio input path is connected to. See audio.h, audio_devices_t
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// for device values.
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// The effect implementation must set QAHW_EFFECT_FLAG_DEVICE_IND flag in its descriptor to
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// receive this command when the device changes
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t)
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// data: uint32_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_GET_CONFIG
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//--------------------------------------------------------------------------------------------------
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// description:
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// Read audio parameters configurations for input and output buffers
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(effect_config_t)
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// data: effect_config_t
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_GET_CONFIG_REVERSE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Read audio parameters configurations for input and output buffers of reverse stream
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 0
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// data: N/A
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(effect_config_t)
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// data: effect_config_t
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS
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//--------------------------------------------------------------------------------------------------
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// description:
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// Queries for supported configurations for a particular feature (e.g. get the supported
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// combinations of main and auxiliary channels for a noise suppressor).
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// The command parameter is the feature identifier (See effect_feature_e for a list of defined
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// features) followed by the maximum number of configuration descriptor to return.
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// The reply is composed of:
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// - status (uint32_t):
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// - 0 if feature is supported
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// - -ENOSYS if the feature is not supported,
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// - -ENOMEM if the feature is supported but the total number of supported configurations
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// exceeds the maximum number indicated by the caller.
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// - total number of supported configurations (uint32_t)
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// - an array of configuration descriptors.
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// The actual number of descriptors returned must not exceed the maximum number indicated by
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// the caller.
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: 2 x sizeof(uint32_t)
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// data: effect_feature_e + maximum number of configurations to return
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 2 x sizeof(uint32_t) + n x sizeof (<config descriptor>)
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// data: status + total number of configurations supported + array of n config descriptors
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_GET_FEATURE_CONFIG
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//--------------------------------------------------------------------------------------------------
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// description:
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// Retrieves current configuration for a given feature.
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// The reply status is:
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// - 0 if feature is supported
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// - -ENOSYS if the feature is not supported,
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t)
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// data: effect_feature_e
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(uint32_t) + sizeof (<config descriptor>)
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// data: status + config descriptor
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_FEATURE_CONFIG
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//--------------------------------------------------------------------------------------------------
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// description:
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// Sets current configuration for a given feature.
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// The reply status is:
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// - 0 if feature is supported
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// - -ENOSYS if the feature is not supported,
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// - -EINVAL if the configuration is invalid
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t) + sizeof (<config descriptor>)
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// data: effect_feature_e + config descriptor
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(uint32_t)
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// data: status
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_SET_AUDIO_SOURCE
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//--------------------------------------------------------------------------------------------------
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// description:
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// Set the audio source the capture path is configured for (Camcorder, voice recognition...).
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// See audio.h, audio_source_t for values.
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(uint32_t)
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// data: uint32_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: 0
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// data: N/A
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//==================================================================================================
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// command: QAHW_EFFECT_CMD_OFFLOAD
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//--------------------------------------------------------------------------------------------------
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// description:
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// 1.indicate if the playback thread the effect is attached to is offloaded or not
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// 2.update the io handle of the playback thread the effect is attached to
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//--------------------------------------------------------------------------------------------------
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// command format:
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// size: sizeof(effect_offload_param_t)
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// data: effect_offload_param_t
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//--------------------------------------------------------------------------------------------------
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// reply format:
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// size: sizeof(uint32_t)
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// data: uint32_t
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//--------------------------------------------------------------------------------------------------
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// command: QAHW_EFFECT_CMD_FIRST_PROPRIETARY
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//--------------------------------------------------------------------------------------------------
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// description:
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// All proprietary effect commands must use command codes above this value. The size and format of
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// command and response fields is free in this case
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//==================================================================================================
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// Audio buffer descriptor used by process(), bufferProvider() functions and buffer_config_t
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// structure. Multi-channel audio is always interleaved. The channel order is from LSB to MSB with
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// regard to the channel mask definition in audio.h, audio_channel_mask_t e.g :
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// Stereo: left, right
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// 5 point 1: front left, front right, front center, low frequency, back left, back right
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// The buffer size is expressed in frame count, a frame being composed of samples for all
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// channels at a given time. Frame size for unspecified format (AUDIO_FORMAT_OTHER) is 8 bit by
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// definition
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struct qahw_audio_buffer_s {
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size_t frameCount; // number of frames in buffer
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union {
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void* raw; // raw pointer to start of buffer
|
|
int32_t* s32; // pointer to signed 32 bit data at start of buffer
|
|
int16_t* s16; // pointer to signed 16 bit data at start of buffer
|
|
uint8_t* u8; // pointer to unsigned 8 bit data at start of buffer
|
|
};
|
|
};
|
|
|
|
// The buffer_provider_s structure contains functions that can be used
|
|
// by the effect engine process() function to query and release input
|
|
// or output audio buffer.
|
|
// The getBuffer() function is called to retrieve a buffer where data
|
|
// should read from or written to by process() function.
|
|
// The releaseBuffer() function MUST be called when the buffer retrieved
|
|
// with getBuffer() is not needed anymore.
|
|
// The process function should use the buffer provider mechanism to retrieve
|
|
// input or output buffer if the in_buffer or out_buffer passed as argument is NULL
|
|
// and the buffer configuration (buffer_config_t) given by the QAHW_EFFECT_CMD_SET_CONFIG
|
|
// command did not specify an audio buffer.
|
|
|
|
typedef int32_t (* qahw_buffer_function_t)(void *cookie, qahw_audio_buffer_t *buffer);
|
|
|
|
typedef struct qahw_buffer_provider_s {
|
|
qahw_buffer_function_t getBuffer; // retrieve next buffer
|
|
qahw_buffer_function_t releaseBuffer; // release used buffer
|
|
void *cookie; // for use by client of buffer provider functions
|
|
} qahw_buffer_provider_t;
|
|
|
|
|
|
// The qahw_buffer_config_s structure specifies the input or output audio format
|
|
// to be used by the effect engine. It is part of the effect_config_t
|
|
// structure that defines both input and output buffer configurations and is
|
|
// passed by the QAHW_EFFECT_CMD_SET_CONFIG or QAHW_EFFECT_CMD_SET_CONFIG_REVERSE command.
|
|
typedef struct qahw_buffer_config_s {
|
|
qahw_audio_buffer_t buffer; // buffer for use by process() function if not passed explicitly
|
|
uint32_t samplingRate; // sampling rate
|
|
uint32_t channels; // channel mask (see audio_channel_mask_t in audio.h)
|
|
qahw_buffer_provider_t bufferProvider; // buffer provider
|
|
uint8_t format; // Audio format (see audio_format_t in audio.h)
|
|
uint8_t accessMode; // read/write or accumulate in buffer (qahw_effect_buffer_access_e)
|
|
uint16_t mask; // indicates which of the above fields is valid
|
|
} qahw_buffer_config_t;
|
|
|
|
// Values for "accessMode" field of buffer_config_t:
|
|
// overwrite, read only, accumulate (read/modify/write)
|
|
enum qahw_effect_buffer_access_e {
|
|
QAHW_EFFECT_BUFFER_ACCESS_WRITE,
|
|
QAHW_EFFECT_BUFFER_ACCESS_READ,
|
|
QAHW_EFFECT_BUFFER_ACCESS_ACCUMULATE
|
|
|
|
};
|
|
|
|
// feature identifiers for QAHW_EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS command
|
|
enum qahw_effect_feature_e {
|
|
QAHW_EFFECT_FEATURE_AUX_CHANNELS, // supports auxiliary channels
|
|
// (e.g. dual mic noise suppressor)
|
|
QAHW_EFFECT_FEATURE_CNT
|
|
};
|
|
|
|
// QAHW_EFFECT_FEATURE_AUX_CHANNELS feature configuration descriptor. Describe a combination
|
|
// of main and auxiliary channels supported
|
|
typedef struct qahw_channel_config_s {
|
|
audio_channel_mask_t main_channels; // channel mask for main channels
|
|
audio_channel_mask_t aux_channels; // channel mask for auxiliary channels
|
|
} qahw_channel_config_t;
|
|
|
|
|
|
// Values for bit field "mask" in buffer_config_t. If a bit is set, the corresponding field
|
|
// in buffer_config_t must be taken into account when executing the QAHW_EFFECT_CMD_SET_CONFIG
|
|
// command
|
|
#define QAHW_EFFECT_CONFIG_BUFFER 0x0001 // buffer field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_SMP_RATE 0x0002 // samplingRate field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_CHANNELS 0x0004 // channels field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_FORMAT 0x0008 // format field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_ACC_MODE 0x0010 // accessMode field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_PROVIDER 0x0020 // bufferProvider field must be taken into account
|
|
#define QAHW_EFFECT_CONFIG_ALL (QAHW_EFFECT_CONFIG_BUFFER | QAHW_EFFECT_CONFIG_SMP_RATE | \
|
|
QAHW_EFFECT_CONFIG_CHANNELS | QAHW_EFFECT_CONFIG_FORMAT | \
|
|
QAHW_EFFECT_CONFIG_ACC_MODE | QAHW_EFFECT_CONFIG_PROVIDER)
|
|
|
|
|
|
// effect_config_s structure describes the format of the pCmdData argument of
|
|
// QAHW_EFFECT_CMD_SET_CONFIG command to configure audio parameters and buffers for effect
|
|
// engine input and output.
|
|
typedef struct qahw_effect_config_s {
|
|
qahw_buffer_config_t input_cfg;
|
|
qahw_buffer_config_t output_cfg;
|
|
} qahw_effect_config_t;
|
|
|
|
|
|
// effect_param_s structure describes the format of the pCmdData argument of
|
|
// QAHW_EFFECT_CMD_SET_PARAM command and pCmdData and pReplyData of QAHW_EFFECT_CMD_GET_PARAM
|
|
// command. psize and vsize represent the actual size of parameter and value.
|
|
//
|
|
// NOTE: the start of value field inside the data field is always on a 32 bit boundary:
|
|
//
|
|
// +-----------+
|
|
// | status | sizeof(int)
|
|
// +-----------+
|
|
// | psize | sizeof(int)
|
|
// +-----------+
|
|
// | vsize | sizeof(int)
|
|
// +-----------+
|
|
// | | | |
|
|
// ~ parameter ~ > psize |
|
|
// | | | > ((psize - 1)/sizeof(int) + 1) * sizeof(int)
|
|
// +-----------+ |
|
|
// | padding | |
|
|
// +-----------+
|
|
// | | |
|
|
// ~ value ~ > vsize
|
|
// | | |
|
|
// +-----------+
|
|
|
|
typedef struct qahw_effect_param_s {
|
|
int32_t status; // Transaction status (unused for command, used for reply)
|
|
uint32_t psize; // Parameter size
|
|
uint32_t vsize; // Value size
|
|
char data[]; // Start of Parameter + Value data
|
|
} qahw_effect_param_t;
|
|
|
|
// structure used by QAHW_EFFECT_CMD_OFFLOAD command
|
|
typedef struct qahw_effect_offload_param_s {
|
|
bool isOffload; // true if the playback thread the effect is attached to is offloaded
|
|
int ioHandle; // io handle of the playback thread the effect is attached to
|
|
} qahw_effect_offload_param_t;
|
|
|
|
|
|
/////////////////////////////////////////////////
|
|
// Effect library interface
|
|
/////////////////////////////////////////////////
|
|
|
|
// Effect library interface version 3.0
|
|
// Note that EffectsFactory.c only checks the major version component, so changes to the minor
|
|
// number can only be used for fully backwards compatible changes
|
|
#define QAHW_EFFECT_LIBRARY_API_VERSION QAHW_EFFECT_MAKE_API_VERSION(3, 0)
|
|
|
|
typedef void* qahw_effect_lib_handle_t;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_load_library
|
|
//
|
|
// Description: Loads an effect library
|
|
//
|
|
// Input:
|
|
// lib_name: Effect library name.
|
|
//
|
|
// Output:
|
|
// returned value: NULL if fails to load library.
|
|
// valid effect library handle
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
qahw_effect_lib_handle_t qahw_effect_load_library(const char *lib_name);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_unload_library
|
|
//
|
|
// Description: Unload the audio effect library
|
|
//
|
|
// Input:
|
|
// handle: Effect library handle.
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation.
|
|
// -EINVAL invalid effect library handle
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_unload_library(qahw_effect_lib_handle_t handle);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_create
|
|
//
|
|
// Description: Creates an effect engine of the specified implementation uuid and
|
|
// returns an effect control interface on this engine. The function will allocate the
|
|
// resources for an instance of the requested effect engine and return
|
|
// a handle on the effect control interface.
|
|
//
|
|
// Input:
|
|
// handle: handle on the effect library.
|
|
// uuid: pointer to the effect uuid.
|
|
// sessionId: audio session to which this effect instance will be attached.
|
|
// All effects created with the same session ID are connected in series
|
|
// and process the same signal stream. Knowing that two effects are part
|
|
// of the same effect chain can help the library implement some kind of
|
|
// optimizations.
|
|
// io_handle: identifies the output or input stream this effect is directed to in
|
|
// audio HAL.
|
|
// For future use especially with tunneled HW accelerated effects
|
|
//
|
|
// Input/Output:
|
|
// effect_handle: address where to return the effect interface handle.
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation.
|
|
// -ENODEV library failed to initialize
|
|
// -EINVAL invalid pEffectUuid or effect_handle
|
|
// -ENOENT no effect with this uuid found
|
|
// *effect_handle: updated with the effect interface handle.
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_create(qahw_effect_lib_handle_t handle,
|
|
const qahw_effect_uuid_t *uuid,
|
|
int32_t io_handle,
|
|
qahw_effect_handle_t *effect_handle);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_release
|
|
//
|
|
// Description: Releases the effect engine whose handle is given as argument.
|
|
// All resources allocated to this particular instance of the effect are
|
|
// released.
|
|
//
|
|
// Input:
|
|
// handle: handle on the effect library.
|
|
// effect_handle: handle on the effect interface to be released.
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation.
|
|
// -EINVAL invalid interface handle
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_release(qahw_effect_lib_handle_t handle,
|
|
qahw_effect_handle_t effect_handle);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_get_descriptor
|
|
//
|
|
// Description: Returns the descriptor of the effect engine which implementation UUID is
|
|
// given as argument.
|
|
//
|
|
// Input/Output:
|
|
// handle: handle on the effect library.
|
|
// uuid: pointer to the effect uuid.
|
|
// effect_desc: address where to return the effect descriptor.
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation.
|
|
// -ENODEV library failed to initialize
|
|
// -EINVAL invalid effect_desc or uuid
|
|
// *effect_desc: updated with the effect descriptor.
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_get_descriptor(qahw_effect_lib_handle_t handle,
|
|
const qahw_effect_uuid_t *uuid,
|
|
qahw_effect_descriptor_t *effect_desc);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_get_version
|
|
//
|
|
// Description: Get version of IOT effect APIs.
|
|
//
|
|
// Output:
|
|
// returned value: version number
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_get_version();
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_process
|
|
//
|
|
// Description: Effect process function. Takes input samples as specified
|
|
// (count and location) in input buffer descriptor and output processed
|
|
// samples as specified in output buffer descriptor. If the buffer descriptor
|
|
// is not specified the function must use either the buffer or the
|
|
// buffer provider function installed by the QAHW_EFFECT_CMD_SET_CONFIG command.
|
|
// The effect framework will call the process() function after the QAHW_EFFECT_CMD_ENABLE
|
|
// command is received and until the QAHW_EFFECT_CMD_DISABLE is received. When the engine
|
|
// receives the QAHW_EFFECT_CMD_DISABLE command it should turn off the effect gracefully
|
|
// and when done indicate that it is OK to stop calling the process() function by
|
|
// returning the -ENODATA status.
|
|
//
|
|
// NOTE: the process() function implementation should be "real-time safe" that is
|
|
// it should not perform blocking calls: malloc/free, sleep, read/write/open/close,
|
|
// pthread_cond_wait/pthread_mutex_lock...
|
|
//
|
|
// Input:
|
|
// self: handle to the effect interface this function is called on.
|
|
// in_buffer: buffer descriptor indicating where to read samples to process.
|
|
// If NULL, use the configuration passed by QAHW_EFFECT_CMD_SET_CONFIG command.
|
|
// out_buffer: buffer descriptor indicating where to write processed samples.
|
|
// If NULL, use the configuration passed by QAHW_EFFECT_CMD_SET_CONFIG command.
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation
|
|
// -ENODATA the engine has finished the disable phase and the framework
|
|
// can stop calling process()
|
|
// -EINVAL invalid interface handle or
|
|
// invalid input/output buffer description
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_process(qahw_effect_handle_t self,
|
|
qahw_audio_buffer_t *in_buffer,
|
|
qahw_audio_buffer_t *out_buffer);
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_command
|
|
//
|
|
// Description: Send a command and receive a response to/from effect engine.
|
|
//
|
|
// Input:
|
|
// self: handle to the effect interface this function is called on.
|
|
// cmd_code: command code: the command can be a standardized command defined in
|
|
// qahw_effect_command_e (see below) or a proprietary command.
|
|
// cmd_size: size of command in bytes
|
|
// cmd_data: pointer to command data
|
|
// reply_data: pointer to reply data
|
|
//
|
|
// Input/Output:
|
|
// reply_size: maximum size of reply data as input
|
|
// actual size of reply data as output
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation
|
|
// -EINVAL invalid interface handle or
|
|
// invalid command/reply size or format according to
|
|
// command code
|
|
// The return code should be restricted to indicate problems related to this API
|
|
// specification. Status related to the execution of a particular command should be
|
|
// indicated as part of the reply field.
|
|
//
|
|
// *reply_data updated with command response
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_command(qahw_effect_handle_t self,
|
|
uint32_t cmd_code,
|
|
uint32_t cmd_size,
|
|
void *cmd_data,
|
|
uint32_t *reply_size,
|
|
void *reply_data);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Function: qahw_effect_process_reverse
|
|
//
|
|
// Description: Process reverse stream function. This function is used to pass
|
|
// a reference stream to the effect engine. If the engine does not need a reference
|
|
// stream, this function pointer can be set to NULL.
|
|
// This function would typically implemented by an Echo Canceler.
|
|
//
|
|
// Input:
|
|
// self: handle to the effect interface this function is called on.
|
|
// in_buffer: buffer descriptor indicating where to read samples to process.
|
|
// If NULL, use the configuration passed by
|
|
// QAHW_EFFECT_CMD_SET_CONFIG_REVERSE command.
|
|
//
|
|
// out_buffer: buffer descriptor indicating where to write processed samples.
|
|
// If NULL, use the configuration passed by
|
|
// QAHW_EFFECT_CMD_SET_CONFIG_REVERSE command.
|
|
// If the buffer and buffer provider in the configuration received by
|
|
// QAHW_EFFECT_CMD_SET_CONFIG_REVERSE are also NULL, do not return modified reverse
|
|
// stream data
|
|
//
|
|
// Output:
|
|
// returned value: 0 successful operation
|
|
// -ENODATA the engine has finished the disable phase and the framework
|
|
// can stop calling process_reverse()
|
|
// -EINVAL invalid interface handle or
|
|
// invalid input/output buffer description
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int32_t qahw_effect_process_reverse(qahw_effect_handle_t self,
|
|
qahw_audio_buffer_t *in_buffer,
|
|
qahw_audio_buffer_t *out_buffer);
|
|
|
|
|
|
__END_DECLS
|
|
|
|
#endif // ANDROID_AUDIO_QAHW_EFFECT_H
|