将单独的音频和视频文件组合成一个文件C ++ [英] combining separate audio and video files into one file C++

问题描述

我正在开发一个使用openCV的C ++项目。它是一个简单的网络摄像头应用程序，具有拍摄图片和视频等基本功能。我已经能够保存视频（w / o音频）。由于openCV不支持音频处理，我想知道是否有任何方式可以将音频分别记录在不同的文件中，然后将它们组合在一起以获得一个视频文件。
在互联网上搜索时，我听到有关使用带有openCV的ffmpeg的内容。但我只是不明白如何做到这一点.....

你们能帮我吗？我会非常感谢...谢谢！

P.S。我使用openCV和QT（GUI）

解决方案

正如你所说，opencv本身并不处理音频。但是，一旦您收到一个单独的音频和视频文件，您可以使用多路复用技术组合它们。有很多方法可以做到这一点。我使用的是 VirtualDub ，尽管它只是windows（不知道是否有问题）我知道ffmpeg也可以复用（通过命令行界面），我不记得命令是什么。还有mplayer和许多其他程序可以做到这一点。

I am working on a C++ project with openCV. It is a simple web cam application with basic features like capturing pictures and videos. I have already been able to save video (w/o audio). Since openCV doesnot support audio processing, I was wondering if there is any way I can record audio separately in a different file and later combine those together to get one video file. While searching on the internet, I did hear something about using ffmpeg with openCV. But I just cant figure out how to do it exactly.....

Can you guys help me? I would be very grateful... Thankyou!

P.S. I have used openCV and QT (for GUI)

解决方案

As you said, opencv doesn't by itself deal with audio. However once you get a separate audio and video file, you can combine them using a technique called muxing. There are many many ways to do this. I use VirtualDub for most of my muxing needs, although it is windows only (not sure if that's a problem). I know ffmpeg is also capable of muxing (via the command line interface), I can't recall what the command is. There's also mplayer and a multitude of other programs out there to do this.

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