在视频文件C＃和DirectShow的开头添加图像？ [英] Adding an image at the start of Video file C# and DirectShow?

问题描述

我有用于录制来自网络摄像头的视频并以 filename.wmv格式存储的代码。
现在我想在视频开始处添加图像

i have code which record an video from webcam and store in "filename.wmv" format. now i want to add an image at the start of video

如何使用DirectshowLib或任何其他lib做到这一点？
是否可以使用DirectShow？

How can i do this by using DirectshowLib or any other lib? Is it possible by using DirectShow?

对于我的视频编码，请访问此链接

For my Video Recoding code go to this link

推荐答案

很难将图像添加到已经保存的视频的开头。如果在录制时能够做到这一点，则可以使用我在提供的链接的答案中建议的相同技术，只是不绘制覆盖层，而是将整个帧替换为图像。

It will be difficult to add image to the start of already saved video. If you are able to do it at the time of recording, you can use same technique I proposed in an answer to the link you provided, just don't draw overlay, but replace the whole frame with your image.

对于那些不会单击链接的人，这里是文本：

For those who won't click on the link, here's the text:

我是在软件中执行此操作，将 SampleGrabber 过滤器插入到图形中，并在图片到达后将其转换为 Bitmap 对象，然后使用 Graphics 对其进行绘制。

I'm doing it in my software in a way that SampleGrabber filter is inserted into a graph, and upon arrival of a picture, I convert it to Bitmap object, then draw on it with Graphics.

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