$flv_header_frame_length) {
fseek($fp, $frame_size_data_length - $flv_header_frame_length, seek_cur);
}
$duration = 0;
while ((ftell($fp) + 1) $this_tag_header = fread($fp, 16);
$data_length = bigendian2int(substr($this_tag_header, 5, 3));
$timestamp = bigendian2int(substr($this_tag_header, 8, 3));
$next_offset = ftell($fp) - 1 + $data_length;
if ($timestamp > $duration) {
$duration = $timestamp;
}
fseek($fp, $next_offset, seek_set);
}
fclose($fp);
return $duration;
}
if($_get['submit'])
{
echo date('i分s秒',gettime($_get['filepath'])/1000);
}
?>