1e41f4b71Sopenharmony_ci# Distributed Audio 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 概述 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciDistributed Audio模块包括对分布式音频设备的操作、流的操作和各种回调等。 通过IDAudioCallback和IDAudioManager接口，与Source SA通信交互，实现分布式功能。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**起始版本：** 4.1 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ci## 汇总 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci### 文件 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci| 名称 | 描述 | 17e41f4b71Sopenharmony_ci| -------- | -------- | 18e41f4b71Sopenharmony_ci| [IDAudioCallback.idl](_i_d_audio_callback_8idl.md) | 分布式音频HDF服务与分布式音频SA服务的传输接口调用，并为上层提供硬件驱动接口。 | 19e41f4b71Sopenharmony_ci| [IDAudioManager.idl](_i_d_audio_manager_8idl.md) | 分布式音频HDF层的调用接口，为分布式音频SA提供硬件驱动注册、去注册以及事件通知能力。 | 20e41f4b71Sopenharmony_ci| [Types.idl](_types_8idl.md) | Audio模块接口定义中使用的数据类型。 | 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci### 类 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci| 名称 | 描述 | 26e41f4b71Sopenharmony_ci| -------- | -------- | 27e41f4b71Sopenharmony_ci| interface [IDAudioCallback](interface_i_d_audio_callback.md) | 定义Distributed Audio设备基本的操作。 | 28e41f4b71Sopenharmony_ci| interface [IDAudioManager](interface_i_d_audio_manager.md) | 定义Distributed Audio设备基本的操作。 | 29e41f4b71Sopenharmony_ci| struct [AudioParameter](_audio_parameter.md) | 音频采样属性。 | 30e41f4b71Sopenharmony_ci| struct [AudioData](_audio_data.md) | 音频数据类型。 | 31e41f4b71Sopenharmony_ci| struct [DAudioEvent](_d_audio_event.md) | 音频事件类型。 | 32e41f4b71Sopenharmony_ci| struct [CurrentTime](_current_time.md) | 音频时间戳。 | 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci### 枚举 36e41f4b71Sopenharmony_ci 37e41f4b71Sopenharmony_ci| 名称 | 描述 | 38e41f4b71Sopenharmony_ci| -------- | -------- | 39e41f4b71Sopenharmony_ci| [PortOperationMode](#portoperationmode) { NORMAL_MODE = 0 , MMAP_MODE = 1 } | 音频端口播放模式。 | 40e41f4b71Sopenharmony_ci 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci## 枚举类型说明 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci### PortOperationMode 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci``` 48e41f4b71Sopenharmony_cienum PortOperationMode 49e41f4b71Sopenharmony_ci``` 50e41f4b71Sopenharmony_ci 51e41f4b71Sopenharmony_ci**描述** 52e41f4b71Sopenharmony_ci 53e41f4b71Sopenharmony_ci 54e41f4b71Sopenharmony_ci音频端口播放模式。 55e41f4b71Sopenharmony_ci 56e41f4b71Sopenharmony_ci**起始版本：** 4.1 57e41f4b71Sopenharmony_ci 58e41f4b71Sopenharmony_ci| 枚举值 | 描述 | 59e41f4b71Sopenharmony_ci| -------- | -------- | 60e41f4b71Sopenharmony_ci| NORMAL_MODE | 正常模式。 | 61e41f4b71Sopenharmony_ci| MMAP_MODE | 低时延模式。 | 62