[FFmpeg-user] Accurate Trimming Without Transcoding

Robert Nagy ronag89 at gmail.com
Mon Mar 7 10:59:47 CET 2016

Is it possible to achieve frame accurate trimming of clips without

e.g. if I have a 50 fps file with a fixed gop of 50 frames and I'd like to
trim the first 24 frames without transcoding. Shouldn't ffmpeg simply
generate a remuxed file with a startTime of 0.48s and a duration adjusted

Is this possible to achieve?

I've tried:

ffmpeg -ss 0.48 -i in.mxf -c copy out.mxf

However, this produces a file with startTime 0. Which isn't correct...

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