//referenceshttp://www.longtailvideo.com/support/forum/Modules/12661/External-PHP-with-FFmpeg-using-readfile-

//generateapreviewimagefromanFLVfileon-the-fly,ortosave

//callwith:ffmpeg_image.php?file=video.flv&time=00:00:05&browser=true

//callwith:ffmpeg_image.php?file=video.flv&percent=75.3&browser=true

//notimedefaultsto"00:00:01"(onesecond),nobrowserdefaultsto"true"

$videofile=(isset($_GET['file']))?strval($_GET['file']):'video.flv';

$image=substr($videofile,0,strlen($videofile)-4);

$time=(isset($_GET['time']))?strval($_GET['time']):'00:00:01';

//debug("File:",$videofile);

//debug("Image:",$image);

//debug("Time:",$time);

//checktimeformat

if(!preg_match('/\d\d:\d\d:\d\d/',$time))

{

$time="00:00:00";

}

if(isset($_GET['percent']))

{

$percent=$_GET['percent'];

//debug("Percent:",$percent);

ob_start();

exec("/usr/bin/ffmpeg-i\"".$videofile."\"2>&1");

$duration=ob_get_contents();

ob_end_clean();

//debug("Duration:",$duration);

preg_match('/Duration:(.*?),/',$duration,$matches);

$duration=$matches[1];

//debug("Duration:",$duration);

$duration_array=split(':',$duration);

$duration=$duration_array[0]*3600+$duration_array[1]*60+$duration_array[2];

$time=$duration*$percent/100;

//debug("Time:",$time);

$time=intval($time/3600).":".intval(($time-(intval($time/3600)*3600))/60).":".sprintf("%01.3f",($time-(intval($time/60)*60)));

//debug("Time:",$time);

}

$browser=(isset($_GET['browser']))?strval($_GET['browser']):'true';

//debug("Browser:",$browser);

if($browser=="true")

{

header('Content-Type:image/png');

exec("/usr/bin/ffmpeg-vcodecpng-i\"".$videofile."\"-ss".$time."-vframes1-fimage2-");

//header('Content-Type:image/jpeg');

//exec("/usr/bin/ffmpeg-vcodecmjpeg-i\"".$videofile."\"-ss".$time."-vframes1-fimage2-");

}

else

{

exec("/usr/bin/ffmpeg-vcodecpng-i\"".$videofile."\"-ss".$time."-vframes1-fimage2\"".$image."\"%d.png");

//exec("/usr/bin/ffmpeg-vcodecmjpeg-i\"".$videofile."\"-ss".$time."-vframes1-fimage2\"".$image."\"%d.jpg");

}

?>