使用 cat 命令合并 2 个 MP4 文件

Question

I am on OS X 10.10 and I am trying to merge 2 MP4 files using the cat command. I thought that I could do this using the cat command, but it seems not to be working. When I merge the two files together and wrote it to a 3rd file, the 3rd file simply had the contents of the first file (when I opened it up using QuickTime). From what I understand, the cat command is simply copying and pasting the plain text from the first file to the third file then the plain text from the second file to the third file (appending it), but QuickTime only will recognize the first part of this. Is there any way to use the cat command to get around this?

Answer 1

I think you're getting confused with mp4box 's -cat option, using which you can execute the following:

mp4box -add 1.mp4 -cat 2.mp4 -cat 3.mp4 merged.mp4

In order to merge 1.mp4 , 2.mp4 and 3.mp4 to merged.mp4

Otherwise, cat - concatenate files and print on the standard output does not support this kind of behavior.

Answer 2

不。 cat根本不操作文件的元数据，因此无法使用它将非文本文件合并在一起，除非文件格式已经设计为使用简单的连接。