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Re: Get size and bitrate of video with perl and ffmpeg

by aitap (Deacon)
on Aug 04, 2012 at 14:38 UTC ( #985437=note: print w/ replies, xml ) Need Help??


in reply to Get size and bitrate of video with perl and ffmpeg

Also, running subprocesseses using list context is safer in case of some special characters in the file name: open(FILE,"-|",qw(ffprobe -i),$file).
Unfortunately, it will be necessary to use some special tricks to hide the STDERR, for example, (untested; written for ugly avconv output)

use IPC::Run 'run'; my $file = $ARGV[0] || die; my $line; run [ qw(ffprobe -show_streams),$file ], '&>', \$line || die "$!\n"; my ($width,$height); for (split /\n/,$line) { $width = $1 if /width=(\d+)/; $height = $1 if /height=(\d+)/; # ... $_ eq '[/STREAM]' && defined $width && defined $height && print "$ +{width}x${height}\n" && last }
Sorry if my advice was wrong.


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