[FFmpeg-user] Faster way of cropping video?
jazzman at misalpina.net
Wed Mar 18 17:28:41 CET 2015
On 3/18/2015 6:19 PM, JP Edwards wrote:
> I've been cropping a number of mp4 videos with ffmpeg but I was just wondering whether there is a way of doing it that doesn't involve re-encoding.
no, this is not technically possible for obvious reasons: you need to
decode the frame, crop and re-encode the completely new image. due to
the very nature of video encoding, you cannot remove portions of an
image without re-encoding the rest as pixels in an image are strongly
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