FFMPEG "File for preset 'lossless_ultrafast' not found"

[splosh5]

Hello, when i try to run the following script to record my desktop, I get this error message "File for preset 'lossless_ultrafast' not found".

ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -r 30 -s $(xwininfo -root | grep 'geometry' | awk '{print $2;}') -i :0.0 -acodec pcm_s16le -vcodec libx264 -vpre lossless_ultrafast -threads 0 -y output.mkv

I followed fakeoutdoorsman's tutorial to install FFMPEG.

How could this be solved?

Thanks,
Josh.

[ron999]

...I get this error message "File for preset 'lossless_ultrafast' not found".

Hi
The presets have changed.
Preset "lossless_ultrafast" doesn't exist any more.

When you use command "x264 --help" it shows available presets:-

--preset <string> Use a preset to select encoding settings [medium]
Overridden by user settings.
- ultrafast,superfast,veryfast,faster,fast
- medium,slow,slower,veryslow,placebo

So modify part of your FFmpeg command...
from this:-

...-vcodec libx264 -vpre lossless_ultrafast -threads 0...

to this:-

...-vcodec libx264 -preset ultrafast -crf 0...

[splosh5]

Thank you ever so much, that has worked perfectly! I did a post where i am getting a error when installing programs though the Ubuntu software center, not sure you would know how to fix it? http://ubuntuforums.org/showthread.p...7#post11720087

Really many thanks,
Josh.

[ron999]

Hi
I edited my post, added "-crf 0" to the command.
Did you use "-crf 0"?

[splosh5]

No I dont think i did.

ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -r 30 -s $(xwininfo -root | grep 'geometry' | awk '{print $2;}') -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -y output.mkv

Many Thanks,
Josh.

[ron999]

No I dont think i did.

This one:-

ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -r 30 -s $(xwininfo -root | grep 'geometry' | awk '{print $2;}') -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -crf 0 -y output.mkv