合并视频和音频的ffmpeg。环路视频音频的同时并没有结束 [英] Merge video and audio with ffmpeg. Loop the video while audio is not over

问题描述

我试图合并与视频文件中的音频文件。
我有两个选择：

I'm trying to merge an audio file with a video file. I have two options:

• 有一个非常小的视频文件（例如，10秒）的循环而音频文件还没有结束。

• Have a very small video file (e.g., 10 seconds) that loop while the audio file is not over.

有一个很长的视频文件上，我可以将音频文件（比我的音频文件更长）。我想切当音频完成视频。

Have a very long video file (longer than any of my audio file) on which I can attach the audio file. I would like to cut the video when the audio is finished.

我已经使用了后者的ffmpeg -t选项。这意味着我必须得到的音频文件的持续时间将其送入ffmpeg的。是否有可能避免这一步呢？

I've using the latter with the -t option of ffmpeg. It means I have to get the duration of the audio file to feed it into ffmpeg. Is it possible to avoid this step ?

第一个解决方案的任何指针？

Any pointer for the first solution ?

推荐答案

第二个项目符号点很容易被利用的ffmpeg的-shortest选项解决。请参阅： http://www.ffmpeg.org/ffmpeg-doc.html#SEC12了解更多信息。

The second bullet point was easily solved by using the -shortest option of ffmpeg. See: http://www.ffmpeg.org/ffmpeg-doc.html#SEC12 for more details.

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