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# GetShapeXmaInputBufferReadOffset

> GetShapeXmaInputBufferReadOffset

# GetShapeXmaInputBufferReadOffset

获取当前输入缓冲区的读取偏移量。

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## 语法

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

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### 参数

*context*   \_In\_\
Type: [SHAPE\_XMA\_CONTEXT](/reference/audio/shapexmacontext/structs/shape_xma_context)\*

指向 [SHAPE\_XMA\_CONTEXT](/reference/audio/shapexmacontext/structs/shape_xma_context) 对象的指针。

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### 返回值

Type: UINT32

距输入缓冲区起始位置的偏移量(以位为单位)。

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## 备注

若要获取当前输入缓冲区,请使用 [GetShapeXmaCurrentInputBuffer](/reference/audio/shapexmacontext/functions/getshapexmacurrentinputbuffer)。

若要设置当前输入缓冲区的读取偏移量,请使用 [SetShapeXmaInputBufferReadOffset](/reference/audio/shapexmacontext/functions/setshapexmainputbufferreadoffset)。

有关详细信息,请参阅 [Overview of SHAPE](/build/console-features/audio/overviews/shape-overview) 的 [XMA](/build/console-features/audio/overviews/shape-overview#ID4EYD) 部分。

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## 要求

**头文件:** shapexmacontext.h

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

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## 另请参阅

[ShapeXmaContext](/reference/audio/shapexmacontext/shapexmacontext_members)


## Related topics

- [SetShapeXmaInputBufferReadOffset](/zh-CN/reference/audio/shapexmacontext/functions/setshapexmainputbufferreadoffset.md)
- [ShapeXmaContext](/zh-CN/reference/audio/shapexmacontext/shapexmacontext_members.md)
- [SetShapeXmaOutputBufferReadOffset](/zh-CN/reference/audio/shapexmacontext/functions/setshapexmaoutputbufferreadoffset.md)
- [GetShapeXmaOutputBufferReadOffset](/zh-CN/reference/audio/shapexmacontext/functions/getshapexmaoutputbufferreadoffset.md)
- [GetShapeXmaOutputBufferWriteOffset](/zh-CN/reference/audio/shapexmacontext/functions/getshapexmaoutputbufferwriteoffset.md)