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# ACP_COMMAND_UPDATE_EQCOMP_CONTEXT

> ACP_COMMAND_UPDATE_EQCOMP_CONTEXT

# ACP\_COMMAND\_UPDATE\_EQCOMP\_CONTEXT

更新 EQ/Comp 上下文的命令。

## 语法

```cpp theme={null}
typedef struct ACP_COMMAND_UPDATE_EQCOMP_CONTEXT {  
    UINT32 contextIndex;  
    UINT32 updateMask;  
    APU_ADDRESS contextData;  
} ACP_COMMAND_UPDATE_EQCOMP_CONTEXT  
```

### 成员

*contextIndex*\
类型:UINT32

要更新的上下文的索引。

*updateMask*\
类型:UINT32

一个或多个更新标志。

| 标志                                               | 值          |
| ------------------------------------------------ | ---------- |
| SHAPE\_EQCOMP\_UPDATE\_EQA\_COEFFICIENTS         | 0x00000001 |
| SHAPE\_EQCOMP\_UPDATE\_EQB\_COEFFICIENTS         | 0x00000002 |
| SHAPE\_EQCOMP\_UPDATE\_EQC\_COEFFICIENTS         | 0x00000004 |
| SHAPE\_EQCOMP\_UPDATE\_EQA\_COEFFICIENTS\_TARGET | 0x00000008 |
| SHAPE\_EQCOMP\_UPDATE\_EQB\_COEFFICIENTS\_TARGET | 0x00000010 |
| SHAPE\_EQCOMP\_UPDATE\_EQC\_COEFFICIENTS\_TARGET | 0x00000020 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_ATTACK              | 0x00000040 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_RELEASE             | 0x00000080 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_THRESHOLD           | 0x00000100 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_ONE\_OVER\_RATIO    | 0x00000200 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_GAIN                | 0x00000400 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_GAIN\_TARGET        | 0x00000800 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_ENABLE              | 0x00001000 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_LOG\_GAIN           | 0x00002000 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_EXPAND              | 0x00004000 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_SIDECHAIN\_MODE     | 0x00008000 |
| SHAPE\_EQCOMP\_UPDATE\_COMP\_MODE                | 0x00010000 |
| SHAPE\_EQCOMP\_UPDATE\_MASK                      | 0x0001ffff |

*contextData*\
类型:APU\_ADDRESS

要更新的上下文数据的物理地址。请参阅 [SHAPE\_EQCOMP\_CONTEXT](/reference/audio/shapeeqcompcontext/structs/shape_eqcomp_context) 结构体。

## 备注

由 `ACP_COMMAND_TYPE_UPDATE_EQCOMP_CONTEXT` 使用以更新指定的 EQ/Comp 上下文。请参阅 [ACP\_COMMAND\_TYPE](/reference/audio/acphal/enums/acp_command_type) 枚举。如果该上下文已在命令队列中,则无法更新。

## 要求

**头文件:** acphal.h

**支持的平台:** XBOX One 系列主机和 XBOX Series 主机

## 概念文档

* [ACP 概述](/build/console-features/audio/overviews/acp-overview)

## 另请参阅

[ACP\_COMMAND\_TYPE](/reference/audio/acphal/enums/acp_command_type)\
[SubmitCommand](/reference/audio/acphal/interfaces/IAcpHal/methods/iacphal_submitcommand)\
[AcpHal](/reference/audio/acphal/acphal_members)


## Related topics

- [ACP 概述](/zh-CN/build/console-features/audio/overviews/acp-overview.md)
- [ACP_COMMAND_TYPE](/zh-CN/reference/audio/acphal/enums/acp_command_type.md)
- [AcpHal](/zh-CN/reference/audio/acphal/acphal_members.md)
- [ACP_COMMAND_LOAD_SHAPE_FLOWGRAPH](/zh-CN/reference/audio/acphal/structs/acp_command_load_shape_flowgraph.md)
- [ACP_COMMAND_UPDATE_EQCOMP_CONTEXT_ENTRY](/zh-CN/reference/audio/acphal/structs/acp_command_update_eqcomp_context_entry.md)