MathewSachin/Captura

can't access webcams on surface pro 4 with captura

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#347 创建于 2018年12月16日

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 (7 评论) (0 反应) (0 负责人)C# (10,680 star) (1,971 fork)batch import
bughelp wanted

描述

I already referenced issues #172 (I tried updating the drivers) above to no avail.

Here is what I get when I try to open captura:

System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component. at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Captura.Webcam.CaptureWebcam.RenderGraph() at Captura.Webcam.CaptureWebcam.StartPreview() at Captura.WebcamControl.ShowOnMainWindow(Window MainWindow) at Captura.Models.WebCamProvider.set_SelectedCam(IWebcamItem value)

Thanks in advance.

贡献者指南

技术栈
csharp
领域
desktop
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
needs investigation
前置要求
WindowsSurface Pro 4.NET Framework
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
20
研究方向
The issue involves a COM exception (HRESULT E FAIL) when accessing webcam on a Surface Pro 4. Start by examining the webcam rendering code in Captura.Webcam.CaptureWebcam.RenderGraph() and the preview pipeline. Check if the issue is specific to Surface Pro 4 camera drivers or requires fallback to older DirectShow methods. Review any existing comments for attempted fixes and driver updates. Test with a different webcam to isolate hardware vs software problem.