[Gllug] Command line tool to find video dimensions?

[salsaman at xs4all.nl]

On Thu, May 31, 2007 14:03, sas.18752793 at bloglines.com wrote:
> --- Greater London Linux User Group <gllug at gllug.org.uk wrote:
>> Exists an
> open source command-line tool that I can call to figure out the
>> dimensions
> of a video?
>
> If you've got mplayer (http://www.mplayerhq.hu/) installed,
> you can use something like
>
> mplayer video.avi -identify -frames 0 | grep
> ID_
>
> to get details about the video.
>
> --
> Gllug mailing list  -  Gllug at gllug.org.uk
> http://lists.gllug.org.uk/mailman/listinfo/gllug
>
>

In perl:

#!/usr/bin/perl

$file=$ARGV[0];

# $file might be a stream, so we need to cache a bit
system("mplayer -identify -vo null -ao null -frames 0 -cache 32
\"$file\">tmpfile 2>/dev/null </dev/null");

$hsize=`grep ID_VIDEO_WIDTH tmpfile 2>/dev/null`;
$hsize=(split("=",(split("\n",$hsize))[0]))[1];
chomp($hsize);

$vsize=`grep ID_VIDEO_HEIGHT tmpfile 2>/dev/null`;
$vsize=(split("=",(split("\n",$vsize))[0]))[1];
chomp($vsize);

unlink "tmpfile";

print "Video size is $hsize x $vsize\n";



If you want to get other details, look at:
http://lives.cvs.sourceforge.net/lives/lives/smogrify?view=markup
and search for "sub get_file_info"


Gabriel.
http://lives.sourceforge.net


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