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

Michael Koch astroelectronic at t-online.de
Sat Jun 26 00:01:42 EEST 2021

Am 25.06.2021 um 22:52 schrieb iburman at compuscience.com:
>> 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?

You have half the frames, but each frame has a better quality than 
before. Now you can increase the crf value even more.


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