PHP-如何解析m3u8并获取不同的bitttrate子m3u8网址?
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任何人都可以告诉我如何在php中使用get_data方法获取主播放列表m3u8,从而获得不同的bitrate(resolution)子m3u8 url.有人可以告诉我如何做到这一点吗?
$returned_content = get_data(''.$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;
}
主播放列表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
解决方法:
首先,您需要获取数据源,然后处理它们(explode()值,因为示例数据在换行符中),然后将它们分组为2,最后循环.考虑以下示例:
<?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
?>
格式化的片段应如下所示:
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
)
...
然后,在html循环和它们上,以及在循环内处理链接:
<?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; ?>
HTML标记现在应如下所示:
<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>
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