如何解析m3u8并得到不同的比特子m3u8 urls？
如何解析m3u8并得到不同的比特子m3u8 urls？
提问于 2014-05-16 19:16:23
有谁能告诉我在php中，如果我们使用m3u8方法获得主播放列表m3u8，如何获得不同的比特率(分辨率)子get_data urls ?下面是来自get_data方法的数据，但我希望获得每个分辨率的m3u8 urls。有人能告诉我怎么做吗?谢谢。
$returned_content = get_data(''.$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;
}主要播放列表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回答 3
Stack Overflow用户
回答已采纳
发布于 2014-05-17 00:11:02
首先，您需要获取数据源，然后处理它们(explode()值，因为您的示例数据处于换行状态)，然后将它们按两个值分组，并在最后循环它们。考虑一下这个例子：
<?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
?>格式化的片段应该如下所示：
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，在循环内部处理链接：
<?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 $element;
}
}
?>
</a><br/>
<?php endforeach; ?>HTML标记现在应该如下所示：
<a href="http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/erewewrwrtf34324343443243434344/test1.mpegts/playlist-dfasdfasdfaw4q3243241.m3u8">Watch this in
RESOLUTION=852x480 </a>
<a href="http://me.mysite.com/media/l3/ertetertyrtut34534234324f3esrere/fgdhgfhgjhghfdsdf45454545345435/test1.mpegts/playlist-adfdfghgjdt5t45454542.m3u8">Watch this in
RESOLUTION=256x144 </a>Stack Overflow用户
发布于 2014-05-16 19:32:13
如果我正确地理解了这个等式，那么您需要解析一个字符串并获得解析。
function findResolution($string){
$array = explode(",",$string);
foreach ($array as $item){
if (strpos($item,"RESOLUTION")!==false){
return str_replace("RESOLUTION=","",$item);
}
}
}Stack Overflow用户
发布于 2015-03-12 22:29:33
为什么不开诚布公？
function parseHLS($file) {
$return = array();
$i = 0;
$handle = fopen($file, "r");
if($handle) {
while(($line = fgets($handle)) !== FALSE) {
if(strpos($line,"EXT-X-STREAM-INF") !== FALSE) {
if ($c=preg_match_all ("/.*?(BANDWIDTH)(.*?)(,)(RESOLUTION)(.*?)(,)/is", $line, $matches)) {
$return['data'][$i]['bandwidth'] = str_replace("=","",$matches[2][0]);
$return['data'][$i]['resolution'] = str_replace("=","",$matches[5][0]);
}
}
if(strpos($line,".ts") !== FALSE) {
$return['data'][$i]['url'] = str_replace(array("\r","\n"),"",$line);
$i++;
}
}
fclose($handle);
}
return $return;
}这将为原始文件中的每个迭代获得一个具有带宽、分辨率和url键的数组。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/23703012
复制相关文章
相似问题
腾讯云开发者
