[FFmpeg-user] Accurate Trimming Without Transcoding

[C E Macfarlane]

Oops, see error correction below ...

www.macfh.co.uk/CEMH.html

>     As Carl has pointed out, it is not possible just to throw 
>     away the leading frames, but what could be done, and would be 
>     very useful, is, where codec copying has been seleceted, to 
>     re-encode only the leading 

gop

>	and to copy the rest 
>     without re-encoding, and this would allow frame accurate 
>     editing of clips.
>     
>     If, as I suppose, it is not already possible to do this, I 
>     suggest it as a possible enhancement to the programme.