[FFmpeg-user] A command for splitting a video file by file size

Moritz Barsnick barsnick at gmx.net
Mon Oct 21 10:48:30 EEST 2019

On Mon, Oct 21, 2019 at 00:51:24 +0200, Julien Dotsev wrote:
> What is dd?

dd is a command line tool. (Also available for other OSs than Unix.)

To take up your example:

$ dd if=inputfile.ext bs=1M skip=4 of=outputfile.ext

But if you're doing this with a video file, the result can be
unplayable. This depends on the format of the video file, and possibly
on its content.

If you want to use ffmpeg to split a file, please understand that
ffmpeg always demuxes and remuxes the video content, and usually cannot
preserve the exact original container.


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