音频

组件注册表： espressif/brookesia_service_audio
辅助头文件： #include "brookesia/service_helper/media/audio.hpp"
辅助类： esp_brookesia::service::helper::AudioPlayback、AudioEncoder<0>、AudioDecoder<0>

概述

brookesia_service_audio 是为 ESP-Brookesia 生态系统提供的音频服务，提供：

音频播放：支持从 URL 播放音频文件，支持暂停、恢复、停止等播放控制。
音频编解码：支持多种音频编解码格式（PCM、OPUS、G711A），支持编码和解码功能。
播放状态管理：实时跟踪播放状态（空闲、播放中、暂停），并通过事件通知状态变化。
编码器管理：支持编码器的启动、停止和配置，可设置编码器读取数据大小。
解码器管理：支持解码器的启动、停止和数据输入，支持流式解码。

功能特性

音频编解码格式

Audio Service 支持以下音频编解码格式：

格式	编码	解码	说明
PCM	✅	✅	无损音频格式
OPUS	✅	✅	支持 VBR 和固定比特率配置
G711A	✅	✅	电话音质音频格式

播放控制

支持从 URL 播放音频文件。
支持暂停、恢复、停止等基础播放控制。
提供播放状态事件通知，便于业务层同步 UI 与状态。

编码器配置

编解码格式：PCM、OPUS、G711A。
通道数：1-4 通道。
采样位数：8、16、24、32 位。
采样率：8000、16000、24000、32000、44100、48000 Hz。
帧时长：可配置的帧时长（毫秒）。
OPUS 扩展配置：VBR 开关、比特率设置。

解码器配置

编解码格式：PCM、OPUS、G711A。
通道数：1-4 通道。
采样位数：8、16、24、32 位。
采样率：8000、16000、24000、32000、44100、48000 Hz。
帧时长：可配置的帧时长（毫秒）。

事件通知

播放状态变化：播放状态改变时触发（Idle、Playing、Paused）。
编码器事件：编码器事件发生时触发。
编码数据就绪：编码数据准备好时触发。

服务接口

函数

播放

`Play`

描述

Play audio from a URL. Supports loop and interrupt playback.

执行要求

是否需要调度器: 需要

参数

Url
- 类型: String
- 是否必填: 必填
- 描述: Audio URL, for example: "file://littlefs/example.mp3".
Config
- 类型: Object
- 是否必填: 可选
- 默认值: {"interrupt":true,"delay_ms":0,"loop_count":0,"loop_interval_ms":0,"timeout_ms":0}
- 描述: Playback config. Example: {"interrupt":true,"delay_ms":0,"loop_count":0,"loop_interval_ms":0,"timeout_ms":0}

Schema JSON

展开查看 JSON


{
  "name": "Play",
  "description": "Play audio from a URL. Supports loop and interrupt playback.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Url",
      "description": "Audio URL, for example: \"file://littlefs/example.mp3\".",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "Config",
      "description": "Playback config. Example: {\"interrupt\":true,\"delay_ms\":0,\"loop_count\":0,\"loop_interval_ms\":0,\"timeout_ms\":0}",
      "type": "Object",
      "required": false,
      "default_value": {
        "interrupt": true,
        "delay_ms": 0,
        "loop_count": 0,
        "loop_interval_ms": 0,
        "timeout_ms": 0
      }
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback Play {"Url":null,"Config":null}

`PlayUrls`

描述

Play audio from multiple URLs. Supports loop and interrupt playback.

执行要求

是否需要调度器: 需要

参数

Urls
- 类型: Array
- 是否必填: 必填
- 描述: Audio URL list. Example: ["file://littlefs/example1.mp3","file://littlefs/example2.mp3"]
Config
- 类型: Object
- 是否必填: 可选
- 默认值: {"interrupt":true,"delay_ms":0,"loop_count":0,"loop_interval_ms":0,"timeout_ms":0}
- 描述: Playback config. Example: {"interrupt":true,"delay_ms":0,"loop_count":0,"loop_interval_ms":0,"timeout_ms":0}

Schema JSON

展开查看 JSON


{
  "name": "PlayUrls",
  "description": "Play audio from multiple URLs. Supports loop and interrupt playback.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Urls",
      "description": "Audio URL list. Example: [\"file://littlefs/example1.mp3\",\"file://littlefs/example2.mp3\"]",
      "type": "Array",
      "required": true,
      "default_value": null
    },
    {
      "name": "Config",
      "description": "Playback config. Example: {\"interrupt\":true,\"delay_ms\":0,\"loop_count\":0,\"loop_interval_ms\":0,\"timeout_ms\":0}",
      "type": "Object",
      "required": false,
      "default_value": {
        "interrupt": true,
        "delay_ms": 0,
        "loop_count": 0,
        "loop_interval_ms": 0,
        "timeout_ms": 0
      }
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback PlayUrls {"Urls":null,"Config":null}

`Pause`

描述

Pause playback.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Pause",
  "description": "Pause playback.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback Pause

`Resume`

描述

Resume playback.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Resume",
  "description": "Resume playback.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback Resume

`Stop`

描述

Stop playback.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Stop",
  "description": "Stop playback.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback Stop

`SetVolume`

描述

Set target playback volume percentage.

执行要求

是否需要调度器: 需要

参数

Volume
- 类型: Number
- 是否必填: 必填
- 描述: Playback volume percentage in range [0, 100].

Schema JSON

展开查看 JSON


{
  "name": "SetVolume",
  "description": "Set target playback volume percentage.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Volume",
      "description": "Playback volume percentage in range [0, 100].",
      "type": "Number",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback SetVolume {"Volume":null}

`GetVolume`

描述

Get target playback volume percentage [0, 100].

执行要求

是否需要调度器: 需要

参数

无。

返回值

类型: Number
描述: Playback volume percentage in range [0, 100].

Schema JSON

展开查看 JSON


{
  "name": "GetVolume",
  "description": "Get target playback volume percentage [0, 100].",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": {
    "type": "Number",
    "description": "Playback volume percentage in range [0, 100]."
  }
}

CLI 命令

svc_call AudioPlayback GetVolume

`SetMute`

描述

Set whether audio playback is muted.

执行要求

是否需要调度器: 需要

参数

Enable
- 类型: Boolean
- 是否必填: 必填
- 描述: True to mute playback, false to unmute it.

Schema JSON

展开查看 JSON


{
  "name": "SetMute",
  "description": "Set whether audio playback is muted.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Enable",
      "description": "True to mute playback, false to unmute it.",
      "type": "Boolean",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback SetMute {"Enable":null}

`GetMute`

描述

Get whether audio playback is muted.

执行要求

是否需要调度器: 需要

参数

无。

返回值

类型: Boolean
描述: True when muted, false when unmuted.

Schema JSON

展开查看 JSON


{
  "name": "GetMute",
  "description": "Get whether audio playback is muted.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": {
    "type": "Boolean",
    "description": "True when muted, false when unmuted."
  }
}

CLI 命令

svc_call AudioPlayback GetMute

`LoadData`

描述

Load persisted audio playback state, including volume and mute.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "LoadData",
  "description": "Load persisted audio playback state, including volume and mute.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback LoadData

`ResetData`

描述

Reset persisted audio playback state, including volume and mute.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "ResetData",
  "description": "Reset persisted audio playback state, including volume and mute.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioPlayback ResetData

编码器

`Start`

描述

Start audio encoder.

执行要求

是否需要调度器: 需要

参数

Config
- 类型: Object
- 是否必填: 必填
- 描述: Audio encoder config. Example: {"type":"PCM","general":{"channels":0,"sample_bits":0,"sample_rate":0,"frame_duration":0},"extra":null,"fetch_interval_ms":10,"fetch_data_size":4096,"enable_afe":false,"afe_wake_start_timeout_ms":30000,"afe_wake_end_timeout_ms":10000}

Schema JSON

展开查看 JSON


{
  "name": "Start",
  "description": "Start audio encoder.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Config",
      "description": "Audio encoder config. Example: {\"type\":\"PCM\",\"general\":{\"channels\":0,\"sample_bits\":0,\"sample_rate\":0,\"frame_duration\":0},\"extra\":null,\"fetch_interval_ms\":10,\"fetch_data_size\":4096,\"enable_afe\":false,\"afe_wake_start_timeout_ms\":30000,\"afe_wake_end_timeout_ms\":10000}",
      "type": "Object",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 Start {"Config":null}

`Stop`

描述

Stop audio encoder.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Stop",
  "description": "Stop audio encoder.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 Stop

`Pause`

描述

Pause audio encoder.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Pause",
  "description": "Pause audio encoder.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 Pause

`Resume`

描述

Resume audio encoder.

执行要求

是否需要调度器: 需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "Resume",
  "description": "Resume audio encoder.",
  "require_scheduler": true,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 Resume

`PauseWakeEnd`

描述

Pause pending AFE WakeEnd event without pausing audio capture.

执行要求

是否需要调度器: 不需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "PauseWakeEnd",
  "description": "Pause pending AFE WakeEnd event without pausing audio capture.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 PauseWakeEnd

`ResumeWakeEnd`

描述

Resume pending AFE WakeEnd event without resuming audio capture.

执行要求

是否需要调度器: 不需要

参数

无。

Schema JSON

展开查看 JSON


{
  "name": "ResumeWakeEnd",
  "description": "Resume pending AFE WakeEnd event without resuming audio capture.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": null
}

CLI 命令

svc_call AudioEncoder0 ResumeWakeEnd

`GetAFEWakeWords`

描述

Get AFE wake words.

执行要求

是否需要调度器: 不需要

参数

无。

返回值

类型: Array
描述: Example: ["ni hao xiao zhi","hello brookesia"]

Schema JSON

展开查看 JSON


{
  "name": "GetAFEWakeWords",
  "description": "Get AFE wake words.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": {
    "type": "Array",
    "description": "Example: [\"ni hao xiao zhi\",\"hello brookesia\"]"
  }
}

CLI 命令

svc_call AudioEncoder0 GetAFEWakeWords

解码器

`GetOutputs`

描述

Get audio output list.

执行要求

是否需要调度器: 不需要

参数

无。

返回值

类型: Array
描述: Example: [{"id":0,"name":"Speaker0","role":"speaker","sample_rates":[16000,22050,44100,48000],"channels":[1,2],"sample_bits":[16]}]

Schema JSON

展开查看 JSON


{
  "name": "GetOutputs",
  "description": "Get audio output list.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": {
    "type": "Array",
    "description": "Example: [{\"id\":0,\"name\":\"Speaker0\",\"role\":\"speaker\",\"sample_rates\":[16000,22050,44100,48000],\"channels\":[1,2],\"sample_bits\":[16]}]"
  }
}

CLI 命令

svc_call AudioDecoder0 GetOutputs

`GetSources`

描述

Get registered audio sources.

执行要求

是否需要调度器: 不需要

参数

无。

返回值

类型: Array
描述: Example: [{"id":1,"name":"TTS","role":"speech","preferred_outputs":["Speaker0"],"priority":10}]

Schema JSON

展开查看 JSON


{
  "name": "GetSources",
  "description": "Get registered audio sources.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [],
  "return_value": {
    "type": "Array",
    "description": "Example: [{\"id\":1,\"name\":\"TTS\",\"role\":\"speech\",\"preferred_outputs\":[\"Speaker0\"],\"priority\":10}]"
  }
}

CLI 命令

svc_call AudioDecoder0 GetSources

`RegisterSource`

描述

Register an audio source.

执行要求

是否需要调度器: 不需要

参数

Source
- 类型: Object
- 是否必填: 必填
- 描述: Source info. Example: {"id":0,"name":"TTS","role":"speech","preferred_outputs":["Speaker0"],"priority":0}

返回值

类型: Number
描述: Registered source id.

Schema JSON

展开查看 JSON


{
  "name": "RegisterSource",
  "description": "Register an audio source.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "Source",
      "description": "Source info. Example: {\"id\":0,\"name\":\"TTS\",\"role\":\"speech\",\"preferred_outputs\":[\"Speaker0\"],\"priority\":0}",
      "type": "Object",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": {
    "type": "Number",
    "description": "Registered source id."
  }
}

CLI 命令

svc_call AudioDecoder0 RegisterSource {"Source":null}

`UnregisterSource`

描述

Unregister an audio source by name.

执行要求

是否需要调度器: 不需要

参数

SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.

Schema JSON

展开查看 JSON


{
  "name": "UnregisterSource",
  "description": "Unregister an audio source by name.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 UnregisterSource {"SourceName":null}

`RequestOutput`

描述

Request an output for an audio source.

执行要求

是否需要调度器: 不需要

参数

SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.
OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.

Schema JSON

展开查看 JSON


{
  "name": "RequestOutput",
  "description": "Request an output for an audio source.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 RequestOutput {"SourceName":null,"OutputName":null}

`ReleaseOutput`

描述

Release an output from an audio source.

执行要求

是否需要调度器: 不需要

参数

SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.
OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.

Schema JSON

展开查看 JSON


{
  "name": "ReleaseOutput",
  "description": "Release an output from an audio source.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 ReleaseOutput {"SourceName":null,"OutputName":null}

`SetActiveSource`

描述

Set the active audio source for an output.

执行要求

是否需要调度器: 不需要

参数

OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.
SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.

Schema JSON

展开查看 JSON


{
  "name": "SetActiveSource",
  "description": "Set the active audio source for an output.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 SetActiveSource {"OutputName":null,"SourceName":null}

`GetActiveSource`

描述

Get the active audio source name for an output.

执行要求

是否需要调度器: 不需要

参数

OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.

返回值

类型: String
描述: Active source name, or an empty string when no source is active.

Schema JSON

展开查看 JSON


{
  "name": "GetActiveSource",
  "description": "Get the active audio source name for an output.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": {
    "type": "String",
    "description": "Active source name, or an empty string when no source is active."
  }
}

CLI 命令

svc_call AudioDecoder0 GetActiveSource {"OutputName":null}

`OpenStream`

描述

Open a direct audio stream for a source and output.

执行要求

是否需要调度器: 不需要

参数

SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.
OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.
Config
- 类型: Object
- 是否必填: 必填
- 描述: Stream config. Example: {"type":"PCM","general":{"channels":0,"sample_bits":0,"sample_rate":0,"frame_duration":0},"queue_size_bytes":32768,"queue_policy":"DropNewest"}

Schema JSON

展开查看 JSON


{
  "name": "OpenStream",
  "description": "Open a direct audio stream for a source and output.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "Config",
      "description": "Stream config. Example: {\"type\":\"PCM\",\"general\":{\"channels\":0,\"sample_bits\":0,\"sample_rate\":0,\"frame_duration\":0},\"queue_size_bytes\":32768,\"queue_policy\":\"DropNewest\"}",
      "type": "Object",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 OpenStream {"SourceName":null,"OutputName":null,"Config":null}

`CloseStream`

描述

Close a direct audio stream for a source and output.

执行要求

是否需要调度器: 不需要

参数

SourceName
- 类型: String
- 是否必填: 必填
- 描述: Source name.
OutputName
- 类型: String
- 是否必填: 必填
- 描述: Output name.

Schema JSON

展开查看 JSON


{
  "name": "CloseStream",
  "description": "Close a direct audio stream for a source and output.",
  "require_scheduler": false,
  "default_timeout_ms": null,
  "parameters": [
    {
      "name": "SourceName",
      "description": "Source name.",
      "type": "String",
      "required": true,
      "default_value": null
    },
    {
      "name": "OutputName",
      "description": "Output name.",
      "type": "String",
      "required": true,
      "default_value": null
    }
  ],
  "return_value": null
}

CLI 命令

svc_call AudioDecoder0 CloseStream {"SourceName":null,"OutputName":null}

事件

播放

`PlayStateChanged`

描述

Emitted when playback state changes.

执行要求

是否需要调度器: 需要

参数

State
- 类型: String
- 描述: Playback state. Allowed values: [Idle, Playing, Paused]

Schema JSON

展开查看 JSON


{
  "name": "PlayStateChanged",
  "description": "Emitted when playback state changes.",
  "require_scheduler": true,
  "items": [
    {
      "name": "State",
      "description": "Playback state. Allowed values: [Idle, Playing, Paused]",
      "type": "String"
    }
  ]
}

CLI 命令

svc_subscribe AudioPlayback PlayStateChanged

`VolumeChanged`

描述

Emitted when the target audio playback volume changes.

执行要求

是否需要调度器: 需要

参数

Volume
- 类型: Number
- 描述: Current target playback volume percentage [0, 100].

Schema JSON

展开查看 JSON


{
  "name": "VolumeChanged",
  "description": "Emitted when the target audio playback volume changes.",
  "require_scheduler": true,
  "items": [
    {
      "name": "Volume",
      "description": "Current target playback volume percentage [0, 100].",
      "type": "Number"
    }
  ]
}

CLI 命令

svc_subscribe AudioPlayback VolumeChanged

`MuteChanged`

描述

Emitted when the target audio playback mute state changes.

执行要求

是否需要调度器: 需要

参数

IsMuted
- 类型: Boolean
- 描述: Whether audio playback is currently muted. True if muted, false if unmuted.

Schema JSON

展开查看 JSON


{
  "name": "MuteChanged",
  "description": "Emitted when the target audio playback mute state changes.",
  "require_scheduler": true,
  "items": [
    {
      "name": "IsMuted",
      "description": "Whether audio playback is currently muted. True if muted, false if unmuted.",
      "type": "Boolean"
    }
  ]
}

CLI 命令

svc_subscribe AudioPlayback MuteChanged

编码器

`AFEEventHappened`

描述

Emitted when an AFE event occurs.

执行要求

是否需要调度器: 需要

参数

Event
- 类型: String
- 描述: AFE event. Allowed values: [VAD_Start, VAD_End, WakeStart, WakeEnd]

Schema JSON

展开查看 JSON


{
  "name": "AFEEventHappened",
  "description": "Emitted when an AFE event occurs.",
  "require_scheduler": true,
  "items": [
    {
      "name": "Event",
      "description": "AFE event. Allowed values: [VAD_Start, VAD_End, WakeStart, WakeEnd]",
      "type": "String"
    }
  ]
}

CLI 命令

svc_subscribe AudioEncoder0 AFEEventHappened

解码器

无。

音频

概述

功能特性

音频编解码格式

播放控制

编码器配置

解码器配置

事件通知

服务接口

函数

播放

Play

描述

执行要求

参数

Schema JSON

CLI 命令

PlayUrls

描述

执行要求

参数

Schema JSON

CLI 命令

Pause

描述

执行要求

参数

Schema JSON

CLI 命令

Resume

描述

执行要求

参数

Schema JSON

CLI 命令

Stop

描述

执行要求

参数

Schema JSON

CLI 命令

SetVolume

描述

执行要求

参数

Schema JSON

CLI 命令

GetVolume

描述

执行要求

参数

返回值

Schema JSON

CLI 命令

SetMute

描述

执行要求

参数

Schema JSON

CLI 命令

GetMute

描述

执行要求

参数

返回值

Schema JSON

CLI 命令

LoadData

描述

执行要求

参数

Schema JSON

CLI 命令

ResetData

描述

执行要求

参数

Schema JSON

CLI 命令

编码器

`Play`

`PlayUrls`

`Pause`

`Resume`

`Stop`

`SetVolume`

`GetVolume`

`SetMute`

`GetMute`

`LoadData`

`ResetData`

`Start`

`Stop`

`Pause`

`Resume`

`PauseWakeEnd`

`ResumeWakeEnd`

`GetAFEWakeWords`

`GetOutputs`

`GetSources`

`RegisterSource`

`UnregisterSource`