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Re: Using IPC::Run to kill stuck process

by runrig (Abbot)
on Dec 13, 2013 at 01:27 UTC ( #1066941=note: print w/ replies, xml ) Need Help??


in reply to Using IPC::Run to kill stuck process

This one should work:

my @cmd = ('/usr/bin/ffmpeg', '-y', '-i', 'long_input.mov','long_outpu +t.wav');
Are you sure it doesn't work? And that it matches the command line that does work?

Update: And taking a step back, does system(@cmd) work?

Update2: Does long_output.wav exist at the time of execution? Is it possibly created within the script and you didn't close a filehandle yet?


Comment on Re: Using IPC::Run to kill stuck process
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Re^2: Using IPC::Run to kill stuck process
by filmotheklown (Initiate) on Dec 14, 2013 at 20:52 UTC

    You're right, I must have gotten mixed up in the process. The command works as you indicated. Thank you everyone for your help.

    Here's my final working code for completeness

    #! /usr/bin/perl use warnings; use strict; use IPC::Run qw(run timeout); my $from_file = '/home/product/ftp-temp/long.mov'; my $tmp_to = '/home/product/ftp-temp/out.wav'; my $in; my $out; my $err; my @cmd = ('/usr/bin/ffmpeg','-y','-i', $from_file, $tmp_to); eval { #16 seconds is long enough to convert about 288 minutes of audio #Current server converts about 18 minutes per second of runtime. #production version will use custom timeout based on expected #lengths of material. run \@cmd, \$in,\$out,\$err, timeout(16, exception=>'timeout'); }; if ($@ =~ /timeout/) { print "Timed out...\n\n"; } else { print "\n\nCompleted Task\n\n"; }

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