[FFmpeg-user] Using ffmpeg to concat videos with multiple video tracks

[mail at philcorley.com]

No worries - sorted it with ffmpeg -f concat -safe 0 -i videos.txt  -map 0 -c copy out.mp4

It was the -map 0 I was missing

> On 15 Mar 2023, at 11:10, mail at philcorley.com wrote:
> 
> I have a large number of MP4 files (all same format and no audio) which each have 4 video tracks per file.
> 
> Does anyone know how I can use ffmpeg to concat/join all the files into one file preserving the 4 video tracks within the output file?
> 
> Many thanks
> 
> Phil
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