how to parse m3u8 and get difffrent bitttrate sub m3u8 urls?

Question

could any one show me how in php i can get different bitrate(resolution) sub m3u8 urls if we have the main playlist m3u8 using get_data method?The following is data i have from get_data method but i want to get m3u8 urls for each resolution. Could any one show me how this can be done?Thanks in advance.

$returned_content = get_data(''.$m3u8Url);
/* gets the data from a URL */
function get_data($url) {
    $ch = curl_init();
    $timeout = 5;
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $data = curl_exec($ch);
    curl_close($ch);
    return $data;
}

main playlist m3u8:

  #EXTM3U
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1628000,RESOLUTION=852x480,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/erewewrwrtf34324343443243434344/test1.mpegts/playlist-dfasdfasdfaw4q3243241.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=128000,RESOLUTION=256x144,CODECS="avc1.66.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgdhgfhgjhghfdsdf45454545345435/test1.mpegts/playlist-adfdfghgjdt5t45454542.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=464000,RESOLUTION=426x240,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/764563564565445fsdf4r3dfdfdffdf/test1.mpegts/playlist-eertyeryry564534rrtr3.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=828000,RESOLUTION=640x360,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgsfdgdfgfdg5435345456745264554/test1.mpegts/playlist-fgsfghdghjt4353454544.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2128000,RESOLUTION=1024x576,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/sfdgsdfgfdgfdgfdgfd465436546576/test1.mpegts/playlist-fghdjhygjujdfgsaf4455.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=3692000,RESOLUTION=1280x720,CODECS="avc1.64001f,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/sfdghgjyuktyurty546565466453645/test1.mpegts/playlist-safdghhgfjjyj45345546.m3u8

Answer 1

First off, you need to get data source, then process them (explode() the values, as your sample data is in line breaks), then group them by two's, and in the end loop them. Consider this example:

<?php

$curl_output = '#EXTM3U
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1628000,RESOLUTION=852x480,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/erewewrwrtf34324343443243434344/test1.mpegts/playlist-dfasdfasdfaw4q3243241.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=128000,RESOLUTION=256x144,CODECS="avc1.66.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgdhgfhgjhghfdsdf45454545345435/test1.mpegts/playlist-adfdfghgjdt5t45454542.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=464000,RESOLUTION=426x240,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/764563564565445fsdf4r3dfdfdffdf/test1.mpegts/playlist-eertyeryry564534rrtr3.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=828000,RESOLUTION=640x360,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgsfdgdfgfdg5435345456745264554/test1.mpegts/playlist-fgsfghdghjt4353454544.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2128000,RESOLUTION=1024x576,CODECS="avc1.77.30,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/sfdgsdfgfdgfdgfdgfd465436546576/test1.mpegts/playlist-fghdjhygjujdfgsaf4455.m3u8
    #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=3692000,RESOLUTION=1280x720,CODECS="avc1.64001f,mp4a.40.2"
    http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/sfdghgjyuktyurty546565466453645/test1.mpegts/playlist-safdghhgfjjyj45345546.m3u8';

// process the string
$pieces = explode("\n", $curl_output); // make an array out of curl return value
unset($pieces[0]); // remove #EXTM3U
$pieces = array_map('trim', $pieces); // remove unnecessary space
$pieces = array_chunk($pieces, 2); // group them by two's

?>

Formatted pieces should look something like this:

Array
(
    [0] => Array
    (
        [0] => #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1628000,RESOLUTION=852x480,CODECS="avc1.77.30,mp4a.40.2"
        [1] => http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/erewewrwrtf34324343443243434344/test1.mpegts/playlist-dfasdfasdfaw4q3243241.m3u8
    )

    [1] => Array
    (
        [0] => #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=128000,RESOLUTION=256x144,CODECS="avc1.66.30,mp4a.40.2"
        [1] => http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgdhgfhgjhghfdsdf45454545345435/test1.mpegts/playlist-adfdfghgjdt5t45454542.m3u8
    )
    ...

Then, on the html loop and them, and inside the loop process the links:

<?php foreach($pieces as $key => $value): ?>
    <a href="<?php echo $value[1]; ?>">Watch this in 
        <?php
        $value[0] = explode(',', $value[0]);
        foreach($value[0] as $index => $element) {
            if(stripos($element, 'RESOLUTION') !== false) {
                echo $element;
            }
        }
        ?>
    </a><br/>
<?php endforeach; ?>

The HTML Markup should now look something like this:

<a href="http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/erewewrwrtf34324343443243434344/test1.mpegts/playlist-dfasdfasdfaw4q3243241.m3u8">Watch this in 
    RESOLUTION=852x480  </a>
<a href="http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgdhgfhgjhghfdsdf45454545345435/test1.mpegts/playlist-adfdfghgjdt5t45454542.m3u8">Watch this in 
    RESOLUTION=256x144  </a>