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# PartyAudioManipulationSourceStream::GetAvailableBufferCount

> 检索可从此流通过检索的缓冲区总数。

检索可通过 [PartyAudioManipulationSourceStream::GetNextBuffer()](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getnextbuffer) 从此流检索的缓冲区总数。

## 语法

```cpp theme={null}
PartyError GetAvailableBufferCount(  
    uint32_t* count  
)  
```

### 参数

**`count`**   uint32\_t\*
*输出*

可用缓冲区的输出计数。

### 返回值

PartyError

如果调用成功,则返回 `c_partyErrorSuccess`;否则返回错误代码。可以通过 [PartyManager::GetErrorMessage()](/services/playfab/multiplayer/networking/reference/classes/PartyManager/methods/partymanager_geterrormessage) 检索错误代码的人类可读形式。

## 备注

如果调用方倾向于以批处理方式通过其管道发送音频缓冲区,这可能会很有用。由于此缓冲区计数受通过 [PartyChatControl::ConfigureAudioManipulationVoiceStream()](/services/playfab/multiplayer/networking/reference/classes/PartyChatControl/methods/partychatcontrol_configureaudiomanipulationvoicestream) 指定的最大音频队列大小限制,因此调用方应给予音频处理管道充足的时间来处理缓冲区,并将它们通过 [PartyAudioManipulationSourceStream::ReturnBuffer()](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_returnbuffer) 归还,以防止音频丢失。

## 要求

\*\*头文件:\*\*Party.h

## 另请参阅

[PartyAudioManipulationSourceStream](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream)


## Related topics

- [PartyAudioManipulationSourceStream::GetNextBuffer](/zh-CN/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getnextbuffer.md)
- [使用实时音频操作应用自定义语音效果](/zh-CN/services/playfab/community/voice-communications/concepts-realtime-audio-manipulation.md)
- [PartyAudioManipulationSourceStream](/zh-CN/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream.md)
- [PartyAudioManipulationSourceStream::ReturnBuffer](/zh-CN/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_returnbuffer.md)
- [PartyAudioManipulationSourceStream::GetFormat](/zh-CN/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getformat.md)