使用Native Client SDK在Chrome中渲染相机预览 [英] Render camera preview in Chrome using Native Client SDK

问题描述

我正在尝试使用网络摄像头（显示预览和写入文件）在Chrome中书写 ppapi插件。我用 pepper_35 安装了NaCl sdk。
在/ examples / api / folder： media_stream_audio 和 media_stream_video 中有可用的示例。

音频示例工作正常 - 请求访问麦克风并显示某种预览。

media_stream_video示例必须显示网络相机视频预览，但是当我在本地网络服务器上加载示例时（使用 make serve 命令），会显示红色矩形， Chrome要求使用网络摄像头。当我点击允许 - 网络摄像头指示灯，铬显示网页使用网络摄像头，我看到相机设置图标。

我在Windows 8.1，Windows 7和Mac OS X上使用五个不同的网络摄像头进行了检查，

解决方案

可能有人遇到过同样的问题吗？ / div>

安装pepper_37（dev）版本的NaCl SDK解决了这个问题。看起来它是目前不稳定的版本，但它的工作原理。

I'm trying to write ppapi plugin for Chrome which will use webcam (show preview and write file). I have installed NaCl sdk with pepper_35. There available examples in /examples/api/ folder: media_stream_audio and media_stream_video.

The audio example works fine - requests access to microphone and shows some kind of preview.

The "media_stream_video" example must show web-camera video preview, but when I load example on the local web server (with make serve command), there appears red rect, and Chrome asks for the web camera access. When I click "allow" - webcam indicator lights-up, chrome show that web page uses the web camera, and I see the camera settings icon. But the preview doesn't work, there still red rectangle instead.

I checked this on Windows 8.1, Windows 7 and Mac OS X, with five different webcams, and have no idea what can be wrong.

Maybe someone already encountered with the same problem?

解决方案

Installing the pepper_37(dev) version of NaCl SDK solved the problem. Looks like it is unstable version currently, but it works.

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