[FFmpeg-user] Lavfi video generator slow performance

[Kieran O Leary]

Hi

On Fri, 6 Apr 2018, 01:11 Elliott Balsley, <elliottbalsley at gmail.com> wrote:

> Thank you, with that suggestion I do get approximately double the speed.
> But still my CPU usage is very low.  Is there any way to get more
> performance out of this?
>
>
> ffmpeg.exe -f lavfi -i color=color=red:s=3840x2160 -t 60 -pix_fmt rgb48le
> -y -s 3840x2160 TIFF\output%4d.tiff
>

Well CPU could be low cos your disk can't keep up? Each Ultra HD 16 bit RGB
frame will be about 47 megabytes. At 13 FPS,you're pushing over 600
megabytes a second.  Are you expecting your disk to perform faster than
this?

Best,

Kieran.