un GUI de plus pour ffmpeg
EDIT après test : je l'aime bien car il donne la ligne de commande avant de faire la job. Pratique pour automatiser dans un script après.

EDIT: mediainfo me semble plus explicite (yaourt -S mediainfo dans community)

Script perl pour afficher des infos sur les vidéos.

#!/usr/bin/perl -w
use strict;
use warnings;

use IPC::Open3;

# example
my $filename  = $ARGV[0];
my %videoInfo = videoInfo($filename);
print "duration: " . $videoInfo{'duration'} . "\n";
print "durationsecs: " . $videoInfo{'durationsecs'} . "\n";
print "bitrate: " . $videoInfo{'bitrate'} . "\n";
print "vcodec: " . $videoInfo{'vcodec'} . "\n";
print "vformat: " . $videoInfo{'vformat'} . "\n";
print "acodec: " . $videoInfo{'acodec'} . "\n";
print "asamplerate: " . $videoInfo{'asamplerate'} . "\n";
print "achannels: " . $videoInfo{'achannels'} . "\n";

#
# returns media information in a hash
sub videoInfo {
# ffmpeg command
my $ffmpeg = '/usr/bin/ffmpeg';

my %finfo = (
 'duration'     => "00:00:00.00",
 'durationsecs' => "0",
 'bitrate'      => "0",
 'vcodec'       => "",
 'vformat'      => "",
 'acodec'       => "",
 'asamplerate'   => "0",
 'achannels'       => "0",
);

my $file = shift;

# escaping characters
$file =~ s/(\W)/\\$1/g;

open3( "</dev/null", ">/dev/null", \*ERPH, "$ffmpeg -i $file" ) or die "can't run $ffmpeg\n";
my @res = <ERPH>;

# parse ffmpeg output
foreach (@res) {
        print;

# duration
if (m!Duration: ([0-9][0-9]:[0-9][0-9]:[0-9][0-9].[0-9][0-9])!) {
$finfo{'duration'} = $1;
}

# bitrate
if (m!bitrate: (\d*) kb/s!) {
$finfo{'bitrate'} = $1;
}

# vcodec and vformat
if (/Video: (\w*), (\w*),/) {
$finfo{'vcodec'}  = $1;
$finfo{'vformat'} = $2;
}

        # Stream #0.1(und): Audio: aac, 48000 Hz, 1 channels, s16, 64 kb/s

# acodec, samplerate, stereo and audiorate
if (m!Audio: (\w*), (\d*) Hz, (\d*)!) {
$finfo{'acodec'}     = $1;
$finfo{'asamplerate'} = $2;
$finfo{'achannels'}     = $3;
}
}

my $tenths  = substr( $finfo{'duration'}, 9, 2 );
my $seconds = substr( $finfo{'duration'}, 6, 2 );
my $minutes = substr( $finfo{'duration'}, 3, 2 );
my $hours   = substr( $finfo{'duration'}, 0, 2 );
$finfo{'durationsecs'} = ( $tenths * .01 ) + $seconds + ( $minutes * 60 ) + ( $hours * 360 );

return %finfo;
}