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# GetShapeXmaInputBufferValid

> GetShapeXmaInputBufferValid

# GetShapeXmaInputBufferValid

获取输入缓冲区的有效性标志。

## 语法

```cpp theme={null}
UINT32 GetShapeXmaInputBufferValid(  
         const SHAPE_XMA_CONTEXT* context  
)  
```

### 参数

*context*   \_In\_\
Type: [SHAPE\_XMA\_CONTEXT](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/structs/shape_xma_context.md)\*

指向 [SHAPE\_XMA\_CONTEXT](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/structs/shape_xma_context.md) 对象的指针。

### 返回值

Type: UINT32

输入缓冲区的有效性标志。

| 值 | 说明 |
| - | - |
| 00 | 两个缓冲区均无效。 |
| 01 | 只有缓冲区 0(左)有效。 |
| 10 | 只有缓冲区 1(右)有效。 |
| 11 | 两个缓冲区都有效。 |

## 备注

若要设置输入缓冲区的有效性标志,请使用 [SetShapeXmaInputBufferValid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/setshapexmainputbuffervalid.md)。

若要获取输出缓冲区的有效性标志,请使用 [GetShapeXmaOutputBufferValid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmaoutputbuffervalid.md)。

有关详细信息,请参阅 [Overview of SHAPE](https://docs.xbox.com/zh-CN/build/console-features/audio/overviews/shape-overview.md) 的 [XMA](https://docs.xbox.com/zh-CN/build/console-features/audio/overviews/shape-overview.md#ID4EYD) 部分。

## 要求

**头文件:** shapexmacontext.h

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

## 另请参阅

[ShapeXmaContext](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/shapexmacontext_members.md)


## Related topics

- [SetShapeXmaInputBufferValid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/setshapexmainputbuffervalid.md)
- [GetShapeXmaOutputBufferValid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmaoutputbuffervalid.md)
- [ShapeXmaContext](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/shapexmacontext_members.md)
- [GetShapeXmaInputBuffer0Valid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmainputbuffer0valid.md)
- [GetShapeXmaInputBuffer1Valid](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmainputbuffer1valid.md)