I need a simple cli tool to rotate mp4 video.

Shane Ambler FreeBSD at ShaneWare.Biz
Wed Oct 31 07:06:40 UTC 2012

On 31/10/2012 09:01, Jakub Lach wrote:

> $ ffmpeg -i A.mp4  -vf "transpose=1" -r 30 -sameq -acodec copy B.mp4
> Is _almost_ ideal, apart from x1.5 increase in size... playing with fps does
> not
> change it too.

try the -b option to specify the bitrate you want.

while I haven't tried it -fs is meant to specify the target filesize.
I am guessing that it would adjust quality to match that size.

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