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# ACP_MESSAGE_SHAPE_COMMAND_BLOCKED

> ACP_MESSAGE_SHAPE_COMMAND_BLOCKED

# ACP\_MESSAGE\_SHAPE\_COMMAND\_BLOCKED

SHAPE 命令(SRC 或 DMA)上下文被阻塞。

## 语法

```cpp theme={null}
typedef struct ACP_MESSAGE_SHAPE_COMMAND_BLOCKED {  
    UINT32 contextIndex;  
    APU_ADDRESS flowgraph;  
} ACP_MESSAGE_SHAPE_COMMAND_BLOCKED  
```

### 成员

*contextIndex*\
类型:UINT32

被阻塞上下文的索引。

*flowgraph*\
类型:APU\_ADDRESS

被阻塞流程图的物理地址。

## 备注

此结构体在 [ACP\_MESSAGE\_TYPE](/reference/audio/acphal/enums/acp_message_type) 枚举中使用。它也在 `ACP_MESSAGE_TYPE_SRC_BLOCKED` 和 `ACP_MESSAGE_TYPE_DMA_BLOCKED` 消息中使用。对于采样率转换器(Sample Rate Convertor,SRC)上下文,该消息表示该上下文正在等待源数据。对于直接内存访问(Direct Memory Access,DMA)上下文,该消息表示该上下文正在等待源数据,或者输出缓冲区已满。

## 要求

**头文件:** acphal.h

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

## 另请参阅

[ACP\_MESSAGE\_TYPE](/reference/audio/acphal/enums/acp_message_type)\
[AcpHal](/reference/audio/acphal/acphal_members)


## Related topics

- [ACP_MESSAGE](/zh-CN/reference/audio/acphal/structs/acp_message.md)
- [AcpHal](/zh-CN/reference/audio/acphal/acphal_members.md)
- [ACP_COMMAND_MESSAGE](/zh-CN/reference/audio/acphal/structs/acp_command_message.md)
- [ACP_MESSAGE_COMMAND_COMPLETED](/zh-CN/reference/audio/acphal/structs/acp_message_command_completed.md)
- [ACP_COMMAND_LOAD_SHAPE_FLOWGRAPH](/zh-CN/reference/audio/acphal/structs/acp_command_load_shape_flowgraph.md)