在 Windows XP 的后台进程中捕获屏幕视频 C# .NET
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Capture Screen Video C# .NET in a Background Process in Windows XP
提问by Pratik
I want to create a background low-privilege process that captures all my screen activity from my "log on" time to "log off" time of Windows XP. It should:
我想创建一个后台低权限进程，用于捕获从 Windows XP 的“登录”时间到“注销”时间的所有屏幕活动。这应该：
- render a video to some formats like avi, wmv, or any other video format.
- be "lightweight" (have low overhead) as many other processes would also be running with it
- output videos with minimal file size
- 将视频渲染为某些格式，如 avi、wmv 或任何其他视频格式。
- 是“轻量级”（低开销），因为许多其他进程也将与它一起运行
- 以最小的文件大小输出视频
I am aware of CamStudioand the Easy Screen Capture Videoprogram, but I don't need such software. I need a simple function or module in C# .NET so that I can integrate, optimize or customize it as per my needs. Please don't recommend software.
我知道CamStudio和Easy Screen Capture Video程序，但我不需要这样的软件。我需要一个 C# .NET 中的简单函数或模块，以便我可以根据我的需要集成、优化或自定义它。请不要推荐软件。
I know how to capture a single image as shown here:
我知道如何捕获单个图像，如下所示：
private static void CaptureScreen()
{
Size s = Screen.PrimaryScreen.Bounds.Size;
Bitmap bmp = new Bitmap(s.Width, s.Height);
Graphics g = Graphics.FromImage(bmp);
g.CopyFromScreen(0, 0, 0, 0, s);
bmp.Save("C:\d.jpg"); //location to save image
}
but I don't know how to get a video in some avi or different video formats.
但我不知道如何获取某些 avi 或不同视频格式的视频。
This isn't for spyware. I just want to monitor all my daily activity once I log on and keep it in video. Then in the future it might be possible to search the recorded sessions.
这不是针对间谍软件的。我只想在登录后监控我所有的日常活动并将其保存在视频中。然后在将来可能可以搜索记录的会话。
These questions are similar but not what I am looking for:
这些问题是相似的，但不是我要找的：
Video capture SDKs and Frameworks for Windows
Alternatives to DirectShow for video capture on Windows
Windows 上用于视频捕获的 DirectShow 的替代方案
How to capture screen to be video using C# .Net?
Record Video of Screen using .NET technologies
Video Capturing + Uploading + Processing + Streaming back - .NET & C#
采纳答案by Ryan Bennett
Create a Video Stream (AVI) from a Series of Images
I think this might be your best solution. Store all the .jpg's and create an avi from the command line at intervals. I don't see how creating video on the fly would produce a "lightweight" solution.
我认为这可能是您最好的解决方案。存储所有 .jpg 并每隔一段时间从命令行创建一个 avi。我不知道如何即时创建视频会产生“轻量级”解决方案。
