Re: how to stream a movie file with fread [success] Now, how to do a fast encrypt ?
| From: | Graham Anderson | Date: | Sat, 24 Sep 2005 00:21:49 +0000 |
| Subject: | Re: how to stream a movie file with fread [success] Now, how to do a fast encrypt ? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-223111@lists.php.net to get a copy of this message | ||
Ok, I got it :)
Is there a better way to do a very fast encryption of a file for a key that changes daily ?
The movie is loading and playing at the same time [progressive/rtsp], so the encrypt/decrypt needs to be pretty fast
I tried mcrypt but it seemed way to slow....
Maybe there is a better encryption method ? Or, are there better characters to search/replace ?
Does not have to be ultra secure...just needs to be encryption that could last a day or so...as it will change daily.
When I run this, the movie plays, but shows a blank screen and plays no audio...which is exactly what I want :)
I want to write a data handler on the user side that connects to a db and gets the $find and $replace keys to unlock the movie
many thanks in advance...and yes, I am experimenting
<?php
$fileSize = filesize($filepath);
header("ETag: ".md5(time()));
header("Accept-Ranges: bytes");
header ("Content-Length: ".$fileSize);
header('Content-Type: video/quicktime');
$find = array("{","ፀ","k","?");
$replace = array("q","m","g","&");
if( $fd = fopen($filepath, 'rb')){
while(!feof($fd)) {
echo str_replace($find,$replace, fread($fd, 8192));
}
fclose ($fd);
exit;
}
?>
On Sep 23, 2005, at 4:07 PM, Graham Anderson wrote:
I am trying to stream a movie file with 'fread' this my first step in trying to dynamically encrypt the file as it is being streamed from the server do I need to fread the data in chunks? If so, how? $filename ="$path2file"; $file = fopen($filename,'r'); $fileSize = filesize($filename); $ContentType = " video/quicktime"; header ("Content-type: $ContentType"); header ("Content-length: $fileSize"); while( $filedata_temp = fread($file, $fileSize) ) echo $filedata_temp; <b>Fatal error</b>: Allowed memory size of 16777216 bytes exhausted (tried to allocate 24113191 bytes) in <b>xxxxxxxx/fopenTest.php</b> on line <b>27</b><br /> BTW, I can get readfile to work just fine :) AFAIK, readfile does not parameters to alter the file contents many thanks :) g -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php