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What is the fastest why of create a thumbnail from a video by FFmpeg or anything else in WPF c#?
look at the code in what I have tried section
it takes about 3 seconds
How can I reduce it

What I have tried:

 string Arguments = 
@"-ss " + (int)starttime + 
"  -i \"" + InputFileUrl+"\"" +
@" -y -vf scale=" + Width + ":" + Height +
" \"" + OutputFileUrl + "\"";
ProcessStartInfo psi = new ProcessStartInfo();
psi.FileName = @"ffmpeg.exe";
psi.CreateNoWindow = true;
psi.UseShellExecute = false;
psi.Arguments = Arguments;
using (Process prc_createImage=new Process())
prc_createImage.StartInfo = psi;
prc_createImage.PriorityClass = ProcessPriorityClass.High;
Updated 17-Jul-21 2:02am
Richard MacCutchan 17-Jul-21 9:33am    
The time is probably down to the ffmpeg processing; and that is easy to test.
4L4K1 17-Jul-21 10:10am    
yeah it is
I test it by stopwatch
I need a faster way
Richard MacCutchan 17-Jul-21 10:24am    
Faster way for what? If ffmpeg takes 3 seconds for the conversion, then thart is how much time it takes.
Gerry Schmitz 17-Jul-21 11:46am    
Your timing includes startup / teardown time. You need a server / batch capability.

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