Forgive me if this is been asked before, I cannot find the answer and can't quite figure it out myself.

I have an in memory scalar and I want to pass that to an external program in a system command as an argument (instead of first writing a file and then calling the command).

For example:


my $mp3 = <binary contents of an mp3 file already in memory>;

system("/path/ffmpeg -i <want to pass $mp3 here>");

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I know ffmpeg can take an input argument like this (if this helps): 

cat my.mp3 | ffmpeg -i pipe:0

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Thanks for the help

In reply to Passing an in memory scalar to an external command as an argument by Rodster001

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