[FFmpeg-user] 4K Way to large to stream

rbarnes at njdevils.net rbarnes at njdevils.net
Tue Jun 29 02:01:27 EEST 2021

Hi Nicolas,

I did a 10 sec preview from the middle of the file.  It is very grainy.  Is
the -s 384x160 the output Frame Size?  I think that would be way too small
for a 4K video convert.
I will play with the below commands.


-----Original Message-----
From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of Nicolas
Sent: Monday, June 28, 2021 5:58 PM
To: FFmpeg user questions <ffmpeg-user at ffmpeg.org>
Subject: Re: [FFmpeg-user] 4K Way to large to stream

rbarnes at njdevils.net (12021-06-28):
> ffmpeg -i Family_Fun.mkv -c:v libx265 -crf 26 -preset medium -c: aac 
> -b:a 128k Family_Fun.mp4

> Can someone offer a better script than what I'm using.

Just add "-r 5 -s 384x160" before the output file name. It should produce a
much smaller video, and finish much faster too.

Of course, I urge you to check the result to see if it matches your
expectations. And to peruse the documentation to see what these option would
do before doing it.


  Nicolas George

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