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Stunix

Arch Linux f@h Team Member

From: Reading, UK

Registered: 2008-09-12

Posts: 17

ffmpeg conversion progress bar?

Hello All,

I am currently in the process of writing a perl script to automate the conversion of avi files into mp4 format so that they can be played on my iPod classic 80GB. I was hoping to create some form of "progress bar" for the entire process. At the moment I am using ffmpeg to convert the files however I cannot see how to obtain a value for the time it is going to take to complete the conversion of each file. I have attached the code at the bottom of this post for anyone that is interested so far. Please forgive any problems with the perl code but I have only just started learning it (plus I'm a systems administrator not a code monkey).

If anyone has any ideas or has seen something that I can't see in the ffmpeg documentation then I would really like to hear it.

Cheers,

#!/usr/bin/env perl
use Cwd;
use strict;
use warnings;
use File::Basename;

while (@ARGV) {
    print "*** Converting $ARGV[0] ***\n";
    my $file = $ARGV[0];
    my $newfile = getcwd.'/'.basename($file);
    $newfile =~ s/\.avi$/.mp4/; # Convert File Extension To .mp4
    my $output = `ffmpeg -i "$ARGV[0]" -vcodec libx264 -b 700k -acodec libfaac -ab 192k -s 320x240 -aspect 4:3 "$newfile" >& /dev/null`; 
    print "*** Conversion Complete ***\n";
    shift @ARGV;
}