Duration and size of a video

We will use the ob_start() function of Php to make sure that we wait for the result of the function passed through passthru.

If you want to see the live result (we believe this is the best way to learn what is the script about), try it here (new window).

Get the length & Size

Following is the whole script, please read the notes and comments.

<?
//Fill the path to your file (can be any video extension)
$file='/pathtofile/videofile.flv';

//Turn on output buffering
ob_start();

//Pass the command through passthru:
passthru("ffmpeg -i $file 2>&1 | grep \"Duration\" | cut -d ' ' -f 4 | sed s/,//");

//get the result
$duration = ob_get_contents();

//get the size in Mo
$filezize=filesize($file)/(1024*1024);

ob_end_clean();

//Extract the duration
list($hours, $mins, $secs) = split('[:]', $duration);

//Here you are:
echo "Video length: Hours: ".$hours." Minutes: ".$mins." Seconds: ".round($secs);
echo "Video size in Mo: ".$filesize;


?>

download the file

* you need ffmpeg in order to run this script (and the right codecs for different extensions)
* The passthru() should be used in place of exec() or system() when the output from the Unix command is binary data which needs to be passed directly back to the browser (function.passthru.php).
* details on ob_start and ob_get_contents(): function.ob-start.php

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Duration and size of a video

Duration and size of a video

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