[FFmpeg-user] Compressed file is larger than original...

iburman at compuscience.com iburman at compuscience.com
Fri Jun 25 23:52:43 EEST 2021

>add -r 30 to your command line

I did that; my new command looks like:
-i HBR_TT747.mp4 -c:v libx264 -preset slow -crf 27 -r 30 -c:a copy -pix_fmt
yuv420p HBR_TT747_Compressed.mp4

And it took it into account, now I have:

BUT...the resulting file size is still 11.2MB. Isn't that strange that we
have now half of the frames and the file size only moved from 11.5 to 11.2


-----Original Message-----
From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of Michael Koch
Sent: Friday, June 25, 2021 11:27 PM
To: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] Compressed file is larger than original...

> -------------------
> Youtube:
> r_frame_rate=30/1
> avg_frame_rate=30/1
> bit_rate=1011745
> nb_frames=1847
> ------------------------------
> What seems significant to me here is that YouTube reduced the frame 
> rate and consequently the number of frames to half. The quality of the 
> video still seems reasonably to what I need it for, so is there a 
> command in ffmpeg where I can reduce the frame rate and accomplish the
same as YouTube?

add -r 30 to your command line

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