Advice on trimming video with ffmpeg

[Anonymous87434]

Deleted

[ProWo]

You could try avidemux and cut at a keyframe near to 16 seconds, so you cut fine video, audio and subtitles.

Or you can try clever FFmpeg-GUI, cut section, frame accurate cut (done in 10 steps).
Should work fine with hevc in a mkv container.


[Attachment 73071 - Click to enlarge]

[ProWo]

You can also try

ffmpeg.exe -itsoffset 16 -i input.mkv -c:v libx265 -tag:v hev1 -crf 20 -profile:v main -level:v 4.0 -preset slow -c:a copy -c:s copy -map 0 output.mkv

[Selur]

using

-vf trim=... -af atrim=...

probably works too
also, https://trac.ffmpeg.org/wiki/Seeking might be interesting.