[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:
r_frame_rate=30/1
nb_frames=1849
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
MB?
Thanks
-----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
Michael
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