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How can i see what codec was used in a video (Audio/Video) and extra information about what to use to reproduce the same compression/quality to the video.

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3 Answers

up vote 6 down vote accepted

One way of doing this is by using VLC. Open the file in question, right click on it in the playlist and you'll see something like this:

Codec info

Stats info

I'm on OS X but the idea is the same.

Another way is to open a terminal, navigate to the directory containing the file and do:

$ file foo.avi

This doesn't provide a great deal of information but it is a start.

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OMG. My IQ level just dropped like 99%. I forgot about that. Thanks boehj. –  Luis Alvarado May 30 '11 at 2:01
    
No problemo. :) –  boehj May 30 '11 at 2:08
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The hard to find 'midenitfy' script. An ancient copy looks like:

#!/bin/sh
#
# This is a wrapper around the -identify functionality.
# It is supposed to escape the output properly, so it can be easily
# used in shellscripts by 'eval'ing the output of this script. 
#
# Written by Tobias Diedrich <ranma+mplayer@tdiedrich.de>
# Licensed under GNU GPL.

if [ -z "$1" ]; then
        echo "Usage: midentify <file> [<file> ...]"
        exit 1
fi

 mplayer -vo null -ao null -frames 0 -identify "$@" 2>/dev/null |
        sed -ne '/^ID_/ {
                           s/[]()|&;<>`'"'"'\\!$" []/\\&/g;p
                        }'
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Another command line option with less "harsh" information:

ffprobe -show_streams "file.mp4"

Even with better output, it's still hard to a regular guy understand. If you need samples of several file formats to test it:

Video Format Examples

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