> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PartyAudioManipulationSourceStream::GetNextBuffer

> 取得串流中下一個可用的緩衝區。

取得串流中下一個可用的緩衝區。

## 語法

```cpp theme={null}
PartyError GetNextBuffer(  
    PartyMutableDataBuffer* buffer  
)  
```

### 參數

**`buffer`**   [PartyMutableDataBuffer\*](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/structs/partymutabledatabuffer.md)\
*輸出*

輸出緩衝區。如果沒有可用的緩衝區，PartyMutableDataBuffer 的 *bufferByteCount* 欄位為 0，且其 *buffer* 欄位為 nullptr。

### 傳回值

PartyError

`c_partyErrorSuccess` (如果呼叫成功)，否則為錯誤碼。可透過 [PartyManager::GetErrorMessage()](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyManager/methods/partymanager_geterrormessage.md) 擷取錯誤碼的人類可讀形式。

## 備註

偵測到語音活動時，每 40 毫秒會有一個新的緩衝區可用。否則，就沒有可用的緩衝區。此方法擷取的緩衝區在使用完畢後，必須透過 [PartyAudioManipulationSourceStream::ReturnBuffer()](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_returnbuffer.md) 傳回給程式庫。 \
\
 可透過 [PartyAudioManipulationSourceStream::GetAvailableBufferCount()](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getavailablebuffercount.md) 擷取當下可用的緩衝區總數。可以在傳回任何緩衝區之前連續擷取多個緩衝區。   \
\
 每個緩衝區都採用 [PartyAudioManipulationSourceStream::GetFormat()](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getformat.md) 所指定的格式。   \
\
 會提供可變的資料緩衝區，讓應用程式可以選擇就地修改音訊。

## 需求

**標頭：** Party.h

## 另請參閱

[PartyAudioManipulationSourceStream](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream.md)\
[PartyAudioManipulationSourceStream::GetFormat](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getformat.md)\
[PartyAudioManipulationSourceStream::ReturnBuffer](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_returnbuffer.md)


## Related topics

- [PartyAudioManipulationSourceStream](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream.md)
- [PartyAudioManipulationSourceStream::ReturnBuffer](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_returnbuffer.md)
- [PartyAudioManipulationSourceStream::GetFormat](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getformat.md)
- [PartyAudioManipulationSourceStream::GetAvailableBufferCount](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getavailablebuffercount.md)
- [PartyAudioManipulationSourceStreamConfiguration](https://docs.xbox.com/zh-TW/services/playfab/multiplayer/networking/reference/structs/partyaudiomanipulationsourcestreamconfiguration.md)