[FFmpeg-user] Concat MTS problems

Def Etienne shaker.doc at gmail.com
Sat Feb 11 22:18:51 EET 2023

> On 11 Feb 2023, at 18:57, Alexander Gribanov <sunrisecoder at gmail.com> wrote:
> Hello!
> I have a camera which splits long recordings into files 2 Gb size...
> How to concat them properly via ffmpeg?
> I make text file files.txt like this:
> file '2022-12-30_00002.MTS'
> file '2022-12-30_00003.MTS'
> file '2022-12-30_00004.MTS'
> file '2022-12-30_00005.MTS'
> And then use the following command:
> ffmpeg -f concat -safe 0 -i files.txt -c copy output.mts

Also paste the output of this command and try stitching to matroska  instead. 

> The problem is that it doesn't stitch them seamlessly, but instead I feel
> like 1-2 seconds audio and video gap or so by playing concatenated video in
> MPC-HC...

Did you try mpv/vlc?

> Is there any way to check, is it a concatenation problem or the files from
> the camera are broken?

> Thank You very much in advance :)


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