免费 · 设备测试
摄像头测试.
在线测试摄像头：实时预览、实际分辨率、实测帧率、摄像头选择和 PNG 快照。
点击“开始”并允许使用摄像头。检查画面，然后对比请求的分辨率与实际分辨率。 所有操作都在本页面内完成。不会上传任何内容，停止或离开页面时会释放设备。
使用方法: 摄像头测试
输入数据或选择文件，调整设置并生成结果。复制或下载之前，请检查结果。
限制与支持格式
输入内容在您的设备上处理。
英语技术说明
Requires camera permission and HTTPS. The requested resolution is a preference; the camera and browser choose the delivered size. Frame rate is measured in this page and can be lower than the camera maximum. Snapshots are saved unmirrored.
getUserMedia opens the selected camera locally. Delivered resolution comes from the video element, frame rate from per-frame callbacks where supported, and maxima from the capabilities the camera reports. No video is recorded or uploaded.
Requesting 1080p on a 720p webcam delivers 1280 × 720; the panel shows both values so you can see the difference.