iphone - Using php to output an mp4 video

Question

Ok basically I have a project that requires that videos are hidden from the users while still able to see them (by using php). here's what i got so far:

The video.php file has this:

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'path/to/movie.mp4');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_HEADER, 0);
$out = curl_exec($ch);
curl_close($ch);


header('Content-type: video/mp4');
header('Content-type: video/mpeg');
header('Content-disposition: inline');
header("Content-Transfer-Encoding:- binary");
header("Content-Length: ".filesize($out));
echo $out;
exit();
?>

and the html file that is supposed to display this is using html5 as it would expect. now here's the thing.. when I straight embed this (not ) it works. but it doesn't work on my iPhone and doesn't work in the tag... if I use the direct file instead of the php wrapper, everything works fine, on my iPhone too...

so I guess my question for this one is this: what are the proper header() information to perfectly replicate an mp4 that can be streamed via iPhone and HMTL5?

Solution derived from: http://mobiforge.com/developing/story/content-delivery-mobile-devices

video.php file:

<?php
$file = 'path/to/videofile.mp4';
$fp = @fopen($file, 'rb');

$size   = filesize($file); // File size
$length = $size;           // Content length
$start  = 0;               // Start byte
$end    = $size - 1;       // End byte

header('Content-type: video/mp4');
header("Accept-Ranges: 0-$length");
if (isset($_SERVER['HTTP_RANGE'])) {

    $c_start = $start;
    $c_end   = $end;

    list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
    if (strpos($range, ',') !== false) {
        header('HTTP/1.1 416 Requested Range Not Satisfiable');
        header("Content-Range: bytes $start-$end/$size");
        exit;
    }
    if ($range == '-') {
        $c_start = $size - substr($range, 1);
    }else{
        $range  = explode('-', $range);
        $c_start = $range[0];
        $c_end   = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $size;
    }
    $c_end = ($c_end > $end) ? $end : $c_end;
    if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
        header('HTTP/1.1 416 Requested Range Not Satisfiable');
        header("Content-Range: bytes $start-$end/$size");
        exit;
    }
    $start  = $c_start;
    $end    = $c_end;
    $length = $end - $start + 1;
    fseek($fp, $start);
    header('HTTP/1.1 206 Partial Content');
}
header("Content-Range: bytes $start-$end/$size");
header("Content-Length: ".$length);


$buffer = 1024 * 8;
while(!feof($fp) && ($p = ftell($fp)) <= $end) {

    if ($p + $buffer > $end) {
        $buffer = $end - $p + 1;
    }
    set_time_limit(0);
    echo fread($fp, $buffer);
    flush();
}

fclose($fp);
exit();
?>

Answer 1

Iphones use something called byte-ranges for audio and video requests. See this link for a solution. It's in Appendix A.

http://mobiforge.com/developing/story/content-delivery-mobile-devices