39 lines
827 B
Markdown
39 lines
827 B
Markdown
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# GetDuration
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**所属类**: `AudioSourceComponent`
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**头文件**: `XCEngine/Components/AudioSourceComponent.h`
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**描述**: 获取音频源当前音频的总时长。
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## 函数签名
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```cpp
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float GetDuration() const;
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```
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## 返回值
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| 类型 | 描述 |
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|------|------|
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| `float` | 音频总时长，单位秒。如果没有设置音频片段则返回 0.0 |
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## 使用示例
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```cpp
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#include <XCEngine/Components/AudioSourceComponent.h>
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using namespace XCEngine::Components;
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void PrintDuration(AudioSourceComponent* source) {
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float duration = source->GetDuration();
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printf("Duration: %.2f seconds\n", duration);
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}
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```
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## 相关文档
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- [AudioSourceComponent](./audio-source-component.md) - 音频源组件
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- [GetTime](./get-time.md) - 获取当前播放位置
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- [SetClip](./set-clip.md) - 设置音频片段
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