In my command line, I start my process like this:
ffmpeg -f dshow i video="Integrated Camera" c:\test.mp4
I want to do the same in PowerShell.
I tried:
$args = " -f dshow i video='Integrated Camera' c:\test.mp4"
Start-Process -FilePath ffmpeg.exe -ArgumentList $args
And I tried:
$args = " -f dshow i video=\"Integrated Camera\" c:\test.mp4"
Start-Process -FilePath ffmpeg.exe -ArgumentList $args
But in both cases, FFmpeg won't start.
How can I put " in my arguments?
I would first urge caution that Start-Process may not be exactly what you desire. This will open a new process in a new command window (cmd).
I would encourage you to read the blog post PowerShell and external commands done right FYI.
However, there are a few ways to escape the quotes. One way to include double quotes in a string is to use a single quote to encapsulate the whole string for example:
$String = 'video="Integrated Camera"'
Alternatively you can escape with a backtick:
$String = "video=`"Integrated Camera`""
Another way would be to escape using double "s:
$String = "video=""Integrated Camera"""
The method you chose will be down to personal preference and the readability of your code. It's worth noting that the -ArgumentsList expects an array of strings.
Wrapping both of these up would give you something along the lines of:
$exe = "ffmpeg.exe"
$ffmpefArguments= "-f dshow i video=`"Integrated Camera`" c:\test.mp4"
&$exe $ffmpefArguments
$ffshowargs = " -f dshow i video=""Integrated Camera"" c:\test.mp4" .Also, $args is an automatic variable used by PowerShell and I would strongly advise against using that like the OP as done.