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AdobeHDS.php
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AdobeHDS.php
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<?php
define('AUDIO', 0x08);
define('VIDEO', 0x09);
define('AKAMAI_ENC_AUDIO', 0x0A);
define('AKAMAI_ENC_VIDEO', 0x0B);
define('SCRIPT_DATA', 0x12);
define('FRAME_TYPE_INFO', 0x05);
define('CODEC_ID_AVC', 0x07);
define('CODEC_ID_AAC', 0x0A);
define('AVC_SEQUENCE_HEADER', 0x00);
define('AAC_SEQUENCE_HEADER', 0x00);
define('AVC_NALU', 0x01);
define('AVC_SEQUENCE_END', 0x02);
define('FRAMEFIX_STEP', 40);
define('INVALID_TIMESTAMP', -1);
define('STOP_PROCESSING', 2);
class CLI
{
protected static $ACCEPTED = array();
var $params = array();
function __construct($options = array(), $handleUnknown = false)
{
global $argc, $argv;
if (count($options))
self::$ACCEPTED = $options;
// Parse params
if ($argc > 1)
{
$paramSwitch = false;
for ($i = 1; $i < $argc; $i++)
{
$arg = $argv[$i];
$isSwitch = preg_match('/^-+/', $arg);
if ($isSwitch)
$arg = preg_replace('/^-+/', '', $arg);
if ($paramSwitch and $isSwitch)
$this->error("[param] expected after '$paramSwitch' switch (" . self::$ACCEPTED[1][$paramSwitch] . ')');
else if (!$paramSwitch and !$isSwitch)
{
if ($handleUnknown)
$this->params['unknown'][] = $arg;
else
$this->error("'$arg' is an invalid option, use --help to display valid switches.");
}
else if (!$paramSwitch and $isSwitch)
{
if (isset($this->params[$arg]))
$this->error("'$arg' switch can't occur more than once");
$this->params[$arg] = true;
if (isset(self::$ACCEPTED[1][$arg]))
$paramSwitch = $arg;
else if (!isset(self::$ACCEPTED[0][$arg]))
$this->error("there's no '$arg' switch, use --help to display all switches.");
}
else if ($paramSwitch and !$isSwitch)
{
$this->params[$paramSwitch] = $arg;
$paramSwitch = false;
}
}
}
// Final check
foreach ($this->params as $k => $v)
if (isset(self::$ACCEPTED[1][$k]) and $v === true)
$this->error("[param] expected after '$k' switch (" . self::$ACCEPTED[1][$k] . ')');
}
function displayHelp()
{
LogInfo("You can use the script with following options:\n");
foreach (self::$ACCEPTED[0] as $key => $value)
LogInfo(sprintf(" --%-17s %s", $key, $value));
foreach (self::$ACCEPTED[1] as $key => $value)
LogInfo(sprintf(" --%-9s%-8s %s", $key, " [param]", $value));
}
function error($msg)
{
LogError($msg);
}
function getParam($name)
{
if (isset($this->params[$name]))
return $this->params[$name];
else
return false;
}
}
class cURL
{
var $headers, $user_agent, $compression, $cookie_file;
var $active, $cert_check, $fragProxy, $maxSpeed, $proxy, $response;
var $mh, $ch, $mrc;
static $ref = 0;
function __construct($cookies = true, $cookie = 'Cookies.txt', $compression = 'gzip', $proxy = '')
{
$this->headers = $this->headers();
$this->user_agent = 'Mozilla/5.0 (Windows NT 5.1; rv:41.0) Gecko/20100101 Firefox/41.0';
$this->compression = $compression;
$this->cookies = $cookies;
if ($this->cookies == true)
$this->cookie($cookie);
$this->cert_check = false;
$this->fragProxy = false;
$this->maxSpeed = 0;
$this->proxy = $proxy;
self::$ref++;
}
function __destruct()
{
$this->stopDownloads();
if ((self::$ref <= 1) and file_exists($this->cookie_file))
unlink($this->cookie_file);
self::$ref--;
}
function headers()
{
$headers[] = 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8';
$headers[] = 'Connection: Keep-Alive';
return $headers;
}
function cookie($cookie_file)
{
if (file_exists($cookie_file))
$this->cookie_file = $cookie_file;
else
{
$file = fopen($cookie_file, 'w') or $this->error('The cookie file could not be opened. Make sure this directory has the correct permissions.');
$this->cookie_file = $cookie_file;
fclose($file);
}
}
function get($url)
{
$process = curl_init($url);
$options = array(
CURLOPT_HTTPHEADER => $this->headers,
CURLOPT_HEADER => 0,
CURLOPT_USERAGENT => $this->user_agent,
CURLOPT_ENCODING => $this->compression,
CURLOPT_TIMEOUT => 30,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1
);
curl_setopt_array($process, $options);
if (!$this->cert_check)
curl_setopt($process, CURLOPT_SSL_VERIFYPEER, false);
if ($this->cookies == true)
{
curl_setopt($process, CURLOPT_COOKIEFILE, $this->cookie_file);
curl_setopt($process, CURLOPT_COOKIEJAR, $this->cookie_file);
}
if ($this->proxy)
$this->setProxy($process, $this->proxy);
$this->response = curl_exec($process);
if ($this->response !== false)
$status = curl_getinfo($process, CURLINFO_HTTP_CODE);
curl_close($process);
if (isset($status))
return $status;
else
return false;
}
function post($url, $data)
{
$process = curl_init($url);
$headers = $this->headers;
$headers[] = 'Content-Type: application/x-www-form-urlencoded;charset=UTF-8';
$options = array(
CURLOPT_HTTPHEADER => $headers,
CURLOPT_HEADER => 1,
CURLOPT_USERAGENT => $this->user_agent,
CURLOPT_ENCODING => $this->compression,
CURLOPT_TIMEOUT => 30,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => $data
);
curl_setopt_array($process, $options);
if (!$this->cert_check)
curl_setopt($process, CURLOPT_SSL_VERIFYPEER, false);
if ($this->cookies == true)
{
curl_setopt($process, CURLOPT_COOKIEFILE, $this->cookie_file);
curl_setopt($process, CURLOPT_COOKIEJAR, $this->cookie_file);
}
if ($this->proxy)
$this->setProxy($process, $this->proxy);
$return = curl_exec($process);
curl_close($process);
return $return;
}
function setProxy(&$process, $proxy)
{
$type = "";
$separator = strpos($proxy, "://");
if ($separator !== false)
{
$type = strtolower(substr($proxy, 0, $separator));
$proxy = substr($proxy, $separator + 3);
}
switch ($type)
{
case "socks4":
$type = CURLPROXY_SOCKS4;
break;
case "socks5":
$type = CURLPROXY_SOCKS5;
break;
default:
$type = CURLPROXY_HTTP;
}
curl_setopt($process, CURLOPT_PROXY, $proxy);
curl_setopt($process, CURLOPT_PROXYTYPE, $type);
}
function addDownload($url, $id)
{
if (!isset($this->mh))
$this->mh = curl_multi_init();
if (isset($this->ch[$id]))
return false;
$download =& $this->ch[$id];
$download['id'] = $id;
$download['url'] = $url;
$download['ch'] = curl_init($url);
$options = array(
CURLOPT_HTTPHEADER => $this->headers,
CURLOPT_HEADER => 0,
CURLOPT_USERAGENT => $this->user_agent,
CURLOPT_ENCODING => $this->compression,
CURLOPT_LOW_SPEED_LIMIT => 1024,
CURLOPT_LOW_SPEED_TIME => 10,
CURLOPT_BINARYTRANSFER => 1,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1
);
curl_setopt_array($download['ch'], $options);
if (!$this->cert_check)
curl_setopt($download['ch'], CURLOPT_SSL_VERIFYPEER, false);
if ($this->cookies == true)
{
curl_setopt($download['ch'], CURLOPT_COOKIEFILE, $this->cookie_file);
curl_setopt($download['ch'], CURLOPT_COOKIEJAR, $this->cookie_file);
}
if ($this->fragProxy and $this->proxy)
$this->setProxy($download['ch'], $this->proxy);
if ($this->maxSpeed > 0)
curl_setopt($download['ch'], CURLOPT_MAX_RECV_SPEED_LARGE, $this->maxSpeed);
curl_multi_add_handle($this->mh, $download['ch']);
do
{
$this->mrc = curl_multi_exec($this->mh, $this->active);
} while ($this->mrc == CURLM_CALL_MULTI_PERFORM);
return true;
}
function checkDownloads()
{
if (isset($this->mh))
{
curl_multi_select($this->mh);
$this->mrc = curl_multi_exec($this->mh, $this->active);
if ($this->mrc != CURLM_OK)
return false;
while ($info = curl_multi_info_read($this->mh))
{
foreach ($this->ch as $download)
if ($download['ch'] == $info['handle'])
break;
$array['id'] = $download['id'];
$array['url'] = $download['url'];
$info = curl_getinfo($download['ch']);
if ($info['http_code'] == 0)
{
/* if curl fails due to network connectivity issues or some other reason it's *
* better to add some delay before next try to avoid busy loop. */
LogDebug("Fragment " . $download['id'] . ": " . curl_error($download['ch']));
usleep(1000000);
$array['status'] = false;
$array['response'] = "";
}
else if ($info['http_code'] == 200)
{
if ($info['size_download'] >= $info['download_content_length'])
{
$array['status'] = $info['http_code'];
$array['response'] = curl_multi_getcontent($download['ch']);
}
else
{
$array['status'] = false;
$array['response'] = "";
}
}
else
{
$array['status'] = $info['http_code'];
$array['response'] = curl_multi_getcontent($download['ch']);
}
$downloads[] = $array;
curl_multi_remove_handle($this->mh, $download['ch']);
curl_close($download['ch']);
unset($this->ch[$download['id']]);
}
if (isset($downloads) and (count($downloads) > 0))
return $downloads;
}
return false;
}
function stopDownloads()
{
if (isset($this->mh))
{
if (isset($this->ch))
{
foreach ($this->ch as $download)
{
curl_multi_remove_handle($this->mh, $download['ch']);
curl_close($download['ch']);
}
unset($this->ch);
}
curl_multi_close($this->mh);
unset($this->mh);
}
}
function error($error)
{
LogError("cURL Error : $error");
}
}
class AkamaiDecryptor
{
var $ecmID, $ecmTimestamp, $ecmVersion, $kdfVersion, $dccAccReserved, $prevEcmID;
var $aes_cbc, $debug, $decryptBytes, $decryptorTest, $encryptor, $lastKeyUrl, $sessionID, $sessionKey, $sessionKeyUrl;
var $packetIV, $packetKey, $packetSalt, $saltAesKey;
function __construct()
{
if (extension_loaded("openssl"))
{
$this->encryptor = "openssl";
}
else if (extension_loaded("mcrypt"))
{
$this->encryptor = "mcrypt";
$this->aes_cbc = mcrypt_module_open('rijndael-128', '', 'cbc', '');
}
else
{
$this->encryptor = false;
LogInfo("You need to install either 'mcrypt' or 'openssl' extension to decrypt some encrypted streams.");
}
$this->debug = false;
$this->decryptorTest = false;
$this->lastKeyUrl = "";
$this->sessionID = "";
$this->sessionKey = "";
$this->sessionKeyUrl = "";
$this->InitDecryptor();
}
function InitDecryptor()
{
$this->dccAccReserved = null;
$this->decryptBytes = 0;
$this->ecmID = null;
$this->ecmTimestamp = null;
$this->ecmVersion = null;
$this->kdfVersion = null;
$this->packetIV = null;
$this->prevEcmID = null;
$this->saltAesKey = null;
}
function AesDecrypt($cipherData, $key, $iv)
{
$decrypted = "";
if ($this->encryptor == "openssl")
{
$decrypted = openssl_decrypt(base64_encode($cipherData), "aes-128-cbc", $key, OPENSSL_ZERO_PADDING, $iv);
}
else if ($this->encryptor == "mcrypt")
{
mcrypt_generic_init($this->aes_cbc, $key, $iv);
$decrypted = mdecrypt_generic($this->aes_cbc, $cipherData);
mcrypt_generic_deinit($this->aes_cbc);
}
else
{
LogError("Failed to find suitable decryption library");
}
return $decrypted;
}
function KDF()
{
$debug = $this->debug;
if ($this->decryptorTest)
$debug = false;
// KDF constants
$hmacKey = unhexlify("3b27bdc9e00fd5995d60a1ee0aa057a9f1416ed085b21762110f1c2204ddf80ec8caab003070fd43baafdde27aeb3194ece5c1adff406a51185eb5dd7300c058");
$hmacData1 = unhexlify("d1ba6371c56ce6b498f1718228b0aa112f24a47bcad757a1d0b3f4c2b8bd637cb8080d9c8e7855b36a85722a60552a6c00");
$hmacData2 = unhexlify("d1ba6371c56ce6b498f1718228b0aa112f24a47bcad757a1d0b3f4c2b8bd637cb8080d9c8e7855b36a85722a60552a6c01");
// Decrypt packet salt
if ($this->ecmID !== $this->prevEcmID)
{
$saltHmacKey = hash_hmac("sha1", $this->sessionKey . $this->packetIV, $hmacKey, true);
LogDebug("SaltHmacKey : " . hexlify($saltHmacKey), $debug);
$this->saltAesKey = substr(hash_hmac("sha1", $hmacData1, $saltHmacKey, true), 0, 16);
LogDebug("SaltAesKey : " . hexlify($this->saltAesKey), $debug);
$this->prevEcmID = $this->ecmID;
}
LogDebug("EncryptedSalt: " . hexlify($this->packetSalt), $debug);
$decryptedSalt = $this->AesDecrypt($this->packetSalt, $this->saltAesKey, $this->packetIV);
LogDebug("DecryptedSalt: " . hexlify($decryptedSalt), $debug);
$this->decryptBytes = ReadInt32($decryptedSalt, 0);
LogDebug("DecryptBytes : " . $this->decryptBytes, $debug);
$decryptedSalt = substr($decryptedSalt, 4, 16);
LogDebug("DecryptedSalt: " . hexlify($decryptedSalt), $debug);
// Generate final packet decryption key
$finalHmacKey = hash_hmac("sha1", $decryptedSalt, $hmacKey, true);
LogDebug("FinalHmacKey : " . hexlify($finalHmacKey), $debug);
$this->packetKey = substr(hash_hmac("sha1", $hmacData2, $finalHmacKey, true), 0, 16);
LogDebug("PacketKey : " . hexlify($this->packetKey), $debug);
}
function Decrypt($data, $pos, $opt = array())
{
/** @var cURL $cc */
$auth = "";
$baseUrl = "";
$cc = null;
extract($opt, EXTR_IF_EXISTS);
$debug = $this->debug;
if ($this->decryptorTest)
$debug = false;
LogDebug("\n----- Akamai Decryption Start -----", $debug);
// Parse packet header
$byte = ReadByte($data, $pos++);
$this->ecmVersion = $byte >> 4;
if ($this->ecmVersion != 11)
$this->ecmVersion = $byte;
$this->ecmID = ReadInt32($data, $pos);
$this->ecmTimestamp = ReadInt32($data, $pos + 4);
$this->kdfVersion = ReadInt16($data, $pos + 8);
$pos += 10;
$this->dccAccReserved = ReadByte($data, $pos++);
LogDebug("ECM Version : " . $this->ecmVersion . ", ECM ID: " . $this->ecmID . ", ECM Timestamp: " . $this->ecmTimestamp . ", KDF Version: " . $this->kdfVersion . ", DccAccReserved: " . $this->dccAccReserved, $debug);
$byte = ReadByte($data, $pos++);
$iv = (($byte & 2) > 0) ? true : false;
$key = (($byte & 4) > 0) ? true : false;
if ($iv)
{
$this->packetIV = substr($data, $pos, 16);
$pos += 16;
LogDebug("PacketIV : " . hexlify($this->packetIV), $debug);
}
if ($key)
{
$this->sessionKeyUrl = ReadString($data, $pos);
LogDebug("SessionKeyUrl: " . $this->sessionKeyUrl, $debug);
$keyPath = substr($this->sessionKeyUrl, strrpos($this->sessionKeyUrl, '/'));
$keyUrl = JoinUrl($baseUrl, $keyPath) . $auth;
// Download key file if required
if ($this->sessionKeyUrl !== $this->lastKeyUrl)
{
if (!$baseUrl and !$this->sessionKey)
LogError("Unable to download session key without manifest url. you must specify it manually using 'adkey' switch.");
else
{
if ($baseUrl)
{
LogDebug("Downloading new session key from " . $keyUrl, $debug);
$status = $cc->get($keyUrl);
if ($status == 200)
{
$this->sessionID = "_" . substr($keyPath, strlen("/key_"));
$this->sessionKey = $cc->response;
}
else
{
LogDebug("Failed to download new session key, Status: " . $status, $debug);
$this->sessionID = "";
}
}
$this->lastKeyUrl = $this->sessionKeyUrl;
if (!$this->sessionKey)
LogError("Failed to download akamai session decryption key");
LogInfo("SessionKey: " . hexlify($this->sessionKey));
}
}
}
LogDebug("SessionKey : " . hexlify($this->sessionKey), $debug);
$reserved = ReadByte($data, $pos++);
$this->packetSalt = substr($data, $pos, 32);
$pos += 32;
$reservedBlock1 = substr($data, $pos, 20);
$reservedBlock2 = substr($data, $pos + 20, 20);
$pos += 40;
LogDebug("ReservedByte : " . $reserved . ", ReservedBlock1: " . hexlify($reservedBlock1) . ", ReservedBlock2: " . hexlify($reservedBlock2), $debug);
// Generate packet decryption key
if (!$this->sessionKey)
LogError("Fragments can't be decrypted properly without corresponding session key.", 2);
$this->KDF();
// Decrypt packet data
$encryptedData = substr($data, $pos);
LogDebug("EncryptedData: " . hexlify(substr($encryptedData, 0, 64)), $debug);
$lastBlockData = substr($encryptedData, $this->decryptBytes);
$encryptedData = substr($encryptedData, 0, $this->decryptBytes);
$decryptedData = "";
if ($this->decryptBytes > 0)
$decryptedData = $this->AesDecrypt($encryptedData, $this->packetKey, $this->packetIV);
$decryptedData .= $lastBlockData;
LogDebug("DecryptedData: " . hexlify(substr($decryptedData, 0, 64)), $debug);
LogDebug("----- Akamai Decryption End -----\n", $debug);
return $decryptedData;
}
}
class F4F
{
var $audio, $auth, $baseFilename, $baseTS, $baseUrl, $bootstrapUrl, $debug, $decoderTest, $duration, $fileCount, $filesize, $fixWindow;
var $format, $live, $media, $metadata, $outDir, $outFile, $parallel, $play, $processed, $quality, $rename, $sessionID, $srt, $video;
var $prevTagSize, $tagHeaderLen;
var $segTable, $fragTable, $frags, $fragCount, $lastFrag, $fragUrl, $discontinuity;
var $negTS, $prevAudioTS, $prevVideoTS, $pAudioTagLen, $pVideoTagLen, $pAudioTagPos, $pVideoTagPos;
var $prevAVC_Header, $prevAAC_Header, $AVC_HeaderWritten, $AAC_HeaderWritten;
function __construct()
{
$this->auth = "";
$this->baseFilename = "";
$this->baseUrl = "";
$this->bootstrapUrl = "";
$this->debug = false;
$this->decoderTest = false;
$this->fileCount = 1;
$this->fixWindow = 1000;
$this->format = "";
$this->live = false;
$this->metadata = true;
$this->outDir = "";
$this->outFile = "";
$this->parallel = 8;
$this->play = false;
$this->processed = false;
$this->quality = "high";
$this->rename = false;
$this->sessionID = "";
$this->segTable = array();
$this->fragTable = array();
$this->segStart = false;
$this->fragStart = false;
$this->frags = array();
$this->fragCount = 0;
$this->lastFrag = 0;
$this->discontinuity = "";
$this->InitDecoder();
}
function InitDecoder()
{
$this->audio = false;
$this->duration = 0;
$this->filesize = 0;
$this->video = false;
$this->prevTagSize = 4;
$this->tagHeaderLen = 11;
$this->baseTS = INVALID_TIMESTAMP;
$this->negTS = INVALID_TIMESTAMP;
$this->prevAudioTS = INVALID_TIMESTAMP;
$this->prevVideoTS = INVALID_TIMESTAMP;
$this->pAudioTagLen = 0;
$this->pVideoTagLen = 0;
$this->pAudioTagPos = 0;
$this->pVideoTagPos = 0;
$this->prevAVC_Header = false;
$this->prevAAC_Header = false;
$this->AVC_HeaderWritten = false;
$this->AAC_HeaderWritten = false;
}
function GetManifest(cURL $cc, $manifest)
{
$status = $cc->get($manifest);
if ($status == 403)
LogError("Access Denied! Unable to download the manifest.");
else if ($status != 200)
LogError("Unable to download the manifest");
$xml = preg_replace('/&(?!amp;)/', '&', trim($cc->response));
$xml = simplexml_load_string($xml);
if (!$xml)
LogError("Failed to load xml");
$namespace = $xml->getDocNamespaces();
$namespace = $namespace[''];
$xml->registerXPathNamespace("ns", $namespace);
return $xml;
}
function ParseManifest(cURL $cc, $parentManifest)
{
/** @var SimpleXMLElement $xml */
LogInfo("Processing manifest info....");
$xml = $this->GetManifest($cc, $parentManifest);
// Extract baseUrl from manifest url
$baseUrl = $xml->xpath("/ns:manifest/ns:baseURL");
if (isset($baseUrl[0]))
$baseUrl = GetString($baseUrl[0]);
else
{
$baseUrl = $parentManifest;
if (strpos($baseUrl, '?') !== false)
$baseUrl = substr($baseUrl, 0, strpos($baseUrl, '?'));
$baseUrl = substr($baseUrl, 0, strrpos($baseUrl, '/'));
}
$childManifests = array();
$url = $xml->xpath("/ns:manifest/ns:media[@*]");
if (isset($url[0]['href']))
{
$count = 1;
foreach ($url as $childManifest)
{
if (isset($childManifest['bitrate']))
$bitrate = floor(GetString($childManifest['bitrate']));
else
$bitrate = $count++;
$entry =& $childManifests[$bitrate];
$entry['bitrate'] = $bitrate;
$entry['url'] = AbsoluteUrl($baseUrl, GetString($childManifest['href']));
$entry['xml'] = $this->GetManifest($cc, $entry['url']);
}
unset($entry, $childManifest);
}
else
{
$childManifests[0]['bitrate'] = 0;
$childManifests[0]['url'] = $parentManifest;
$childManifests[0]['xml'] = $xml;
}
$count = 1;
foreach ($childManifests as $childManifest)
{
$xml = $childManifest['xml'];
// Extract baseUrl from manifest url
$baseUrl = $xml->xpath("/ns:manifest/ns:baseURL");
if (isset($baseUrl[0]))
$baseUrl = GetString($baseUrl[0]);
else
{
$baseUrl = $childManifest['url'];
if (strpos($baseUrl, '?') !== false)
$baseUrl = substr($baseUrl, 0, strpos($baseUrl, '?'));
$baseUrl = substr($baseUrl, 0, strrpos($baseUrl, '/'));
}
$streams = $xml->xpath("/ns:manifest/ns:media");
foreach ($streams as $stream)
{
$array = array();
foreach ($stream->attributes() as $k => $v)
$array[strtolower($k)] = GetString($v);
$array['metadata'] = GetString($stream->{'metadata'});
$stream = $array;
if (isset($stream['bitrate']))
{
if ($stream['bitrate'] > $childManifest['bitrate'])
$bitrate = floor($stream['bitrate']);
else
$bitrate = $childManifest['bitrate'];
}
else if ($childManifest['bitrate'] > 0)
$bitrate = $childManifest['bitrate'];
else
$bitrate = $count++;
while (isset($this->media[$bitrate]))
$bitrate++;
$streamId = isset($stream[strtolower('streamId')]) ? $stream[strtolower('streamId')] : "";
$mediaEntry =& $this->media[$bitrate];
$mediaEntry['baseUrl'] = $baseUrl;
$mediaEntry['url'] = preg_replace('/ /', '%20', $stream['url']);
if (isRtmpUrl($mediaEntry['baseUrl']) or isRtmpUrl($mediaEntry['url']))
LogError("Provided manifest is not a valid HDS manifest");
// Use embedded auth information when available
$idx = strpos($mediaEntry['url'], '?');
if ($idx !== false)
{
$mediaEntry['queryString'] = substr($mediaEntry['url'], $idx);
$mediaEntry['url'] = substr($mediaEntry['url'], 0, $idx);
if (strlen($this->auth) != 0 and strcmp($this->auth, $mediaEntry['queryString']) != 0)
LogDebug("Manifest overrides 'auth': " . $mediaEntry['queryString']);
}
else
$mediaEntry['queryString'] = $this->auth;
if (isset($stream[strtolower('bootstrapInfoId')]))
$bootstrap = $xml->xpath("/ns:manifest/ns:bootstrapInfo[@id='" . $stream[strtolower('bootstrapInfoId')] . "']");
else
$bootstrap = $xml->xpath("/ns:manifest/ns:bootstrapInfo");
if (isset($bootstrap[0]['url']))
{
$mediaEntry['bootstrapUrl'] = AbsoluteUrl($mediaEntry['baseUrl'], GetString($bootstrap[0]['url']));
if (strpos($mediaEntry['bootstrapUrl'], '?') === false)
$mediaEntry['bootstrapUrl'] .= $this->auth;
}
else
$mediaEntry['bootstrap'] = base64_decode(GetString($bootstrap[0]));
if (isset($stream['metadata']))
$mediaEntry['metadata'] = base64_decode($stream['metadata']);
else
$mediaEntry['metadata'] = "";
}
unset($mediaEntry, $childManifest);
}
// Available qualities
$bitrates = array();
if (!count($this->media))
LogError("No media entry found");
krsort($this->media, SORT_NUMERIC);
LogDebug("Manifest Entries:\n");
LogDebug(sprintf(" %-8s%s", "Bitrate", "URL"));
for ($i = 0; $i < count($this->media); $i++)
{
$key = KeyName($this->media, $i);
$bitrates[] = $key;
LogDebug(sprintf(" %-8d%s", $key, $this->media[$key]['url']));
}
LogDebug("");
LogInfo("Quality Selection:\n Available: " . implode(' ', $bitrates));
// Quality selection
$key = $this->quality;
if (is_numeric($key) and isset($this->media[$key]))
$this->media = $this->media[$key];
else
{
$this->quality = strtolower($this->quality);
switch ($this->quality)
{
case "low":
$this->quality = 2;
break;
case "medium":
$this->quality = 1;
break;
default:
$this->quality = 0;
}
while ($this->quality >= 0)
{
$key = KeyName($this->media, $this->quality);
if ($key !== NULL)
{
$this->media = $this->media[$key];
break;
}
else
$this->quality -= 1;
}
}
LogInfo(" Selected : " . $key);
// Parse initial bootstrap info
$this->baseUrl = $this->media['baseUrl'];
if (isset($this->media['bootstrapUrl']))
{
$this->bootstrapUrl = $this->media['bootstrapUrl'];
$this->UpdateBootstrapInfo($cc, $this->bootstrapUrl);
}
else
{
$bootstrapInfo = $this->media['bootstrap'];
ReadBoxHeader($bootstrapInfo, $pos, $boxType, $boxSize);
if ($boxType == "abst")
$this->ParseBootstrapBox($bootstrapInfo, $pos);
else
LogError("Failed to parse bootstrap info");
}
}
function UpdateBootstrapInfo(cURL $cc, $bootstrapUrl)
{
$fragNum = $this->fragCount;
$retries = 0;
// Backup original headers and add no-cache directive for fresh bootstrap info
$headers = $cc->headers;
$cc->headers[] = "Cache-Control: no-cache";
$cc->headers[] = "Pragma: no-cache";
while ($retries < 30)
{
$bootstrapPos = 0;
LogDebug("Updating bootstrap info, Available fragments: " . $this->fragCount);
$status = $cc->get($bootstrapUrl);
if ($status == 200)
{
$bootstrapInfo = $cc->response;
ReadBoxHeader($bootstrapInfo, $bootstrapPos, $boxType, $boxSize);
if ($boxType == "abst")
$this->ParseBootstrapBox($bootstrapInfo, $bootstrapPos);
else
LogError("Failed to parse bootstrap info");
LogDebug("Update complete, Available fragments: " . $this->fragCount);
}
else
LogInfo("Failed to refresh bootstrap info, Status: " . $status);
if ($this->fragCount <= $fragNum)
{
LogInfo("Updating bootstrap info, Retries: " . ++$retries, true);
usleep(4000000);
}
else
break;
}
// Restore original headers
$cc->headers = $headers;
}
function ParseBootstrapBox($bootstrapInfo, $pos)
{
$version = ReadByte($bootstrapInfo, $pos);
$flags = ReadInt24($bootstrapInfo, $pos + 1);
$bootstrapVersion = ReadInt32($bootstrapInfo, $pos + 4);
$byte = ReadByte($bootstrapInfo, $pos + 8);
$profile = ($byte & 0xC0) >> 6;
if (($byte & 0x20) >> 5)
{
$this->live = true;
$this->metadata = false;
}
$update = ($byte & 0x10) >> 4;
if (!$update)
{
$this->segTable = array();
$this->fragTable = array();
}
$timescale = ReadInt32($bootstrapInfo, $pos + 9);
$currentMediaTime = ReadInt64($bootstrapInfo, $pos + 13);
$smpteTimeCodeOffset = ReadInt64($bootstrapInfo, $pos + 21);
$pos += 29;
$movieIdentifier = ReadString($bootstrapInfo, $pos);
$serverEntryCount = ReadByte($bootstrapInfo, $pos++);
for ($i = 0; $i < $serverEntryCount; $i++)
$serverEntryTable[$i] = ReadString($bootstrapInfo, $pos);
$qualityEntryCount = ReadByte($bootstrapInfo, $pos++);
for ($i = 0; $i < $qualityEntryCount; $i++)
$qualityEntryTable[$i] = ReadString($bootstrapInfo, $pos);
$drmData = ReadString($bootstrapInfo, $pos);
$metadata = ReadString($bootstrapInfo, $pos);
$segRunTableCount = ReadByte($bootstrapInfo, $pos++);
$segTable = array();
LogDebug(sprintf("%s:", "Segment Tables"));
for ($i = 0; $i < $segRunTableCount; $i++)
{
LogDebug(sprintf("\nTable %d:", $i + 1));
ReadBoxHeader($bootstrapInfo, $pos, $boxType, $boxSize);
if ($boxType == "asrt")
$segTable[$i] = $this->ParseAsrtBox($bootstrapInfo, $pos);
$pos += $boxSize;
}
$fragRunTableCount = ReadByte($bootstrapInfo, $pos++);
$fragTable = array();
LogDebug(sprintf("%s:", "Fragment Tables"));
for ($i = 0; $i < $fragRunTableCount; $i++)
{
LogDebug(sprintf("\nTable %d:", $i + 1));
ReadBoxHeader($bootstrapInfo, $pos, $boxType, $boxSize);
if ($boxType == "afrt")
$fragTable[$i] = $this->ParseAfrtBox($bootstrapInfo, $pos);
$pos += $boxSize;
}
$this->segTable = array_replace($this->segTable, $segTable[0]);
$this->fragTable = array_replace($this->fragTable, $fragTable[0]);
$this->ParseSegAndFragTable();
}
function ParseAsrtBox($asrt, $pos)
{
$segTable = array();
$version = ReadByte($asrt, $pos);
$flags = ReadInt24($asrt, $pos + 1);
$qualityEntryCount = ReadByte($asrt, $pos + 4);
$pos += 5;
for ($i = 0; $i < $qualityEntryCount; $i++)
$qualitySegmentUrlModifiers[$i] = ReadString($asrt, $pos);
$segCount = ReadInt32($asrt, $pos);
$pos += 4;
LogDebug(sprintf(" %-8s%-10s", "Number", "Fragments"));
for ($i = 0; $i < $segCount; $i++)
{
$firstSegment = ReadInt32($asrt, $pos);
$segEntry =& $segTable[$firstSegment];
$segEntry['firstSegment'] = $firstSegment;
$segEntry['fragmentsPerSegment'] = ReadInt32($asrt, $pos + 4);
if ($segEntry['fragmentsPerSegment'] & 0x80000000)
$segEntry['fragmentsPerSegment'] = 0;
$pos += 8;
}
unset($segEntry);
foreach ($segTable as $segEntry)
LogDebug(sprintf(" %-8s%-10s", $segEntry['firstSegment'], $segEntry['fragmentsPerSegment']));
LogDebug("");
return $segTable;
}
function ParseAfrtBox($afrt, $pos)
{
$fragTable = array();
$version = ReadByte($afrt, $pos);
$flags = ReadInt24($afrt, $pos + 1);
$timescale = ReadInt32($afrt, $pos + 4);
$qualityEntryCount = ReadByte($afrt, $pos + 8);
$pos += 9;
for ($i = 0; $i < $qualityEntryCount; $i++)
$qualitySegmentUrlModifiers[$i] = ReadString($afrt, $pos);
$fragEntries = ReadInt32($afrt, $pos);
$pos += 4;
LogDebug(sprintf(" %-12s%-16s%-16s%-16s", "Number", "Timestamp", "Duration", "Discontinuity"));
for ($i = 0; $i < $fragEntries; $i++)
{
$firstFragment = ReadInt32($afrt, $pos);
$fragEntry =& $fragTable[$firstFragment];
$fragEntry['firstFragment'] = $firstFragment;
$fragEntry['firstFragmentTimestamp'] = ReadInt64($afrt, $pos + 4);
$fragEntry['fragmentDuration'] = ReadInt32($afrt, $pos + 12);
$fragEntry['discontinuityIndicator'] = "";
$pos += 16;
if ($fragEntry['fragmentDuration'] == 0)
$fragEntry['discontinuityIndicator'] = ReadByte($afrt, $pos++);
}
unset($fragEntry);
foreach ($fragTable as $fragEntry)
LogDebug(sprintf(" %-12s%-16s%-16s%-16s", $fragEntry['firstFragment'], $fragEntry['firstFragmentTimestamp'], $fragEntry['fragmentDuration'], $fragEntry['discontinuityIndicator']));
LogDebug("");
return $fragTable;
}
function ParseSegAndFragTable()
{
$firstSegment = reset($this->segTable);
$lastSegment = end($this->segTable);
$firstFragment = reset($this->fragTable);
$lastFragment = end($this->fragTable);
// Check if live stream is still live
if (($lastFragment['fragmentDuration'] == 0) and ($lastFragment['discontinuityIndicator'] == 0))
{
$this->live = false;
array_pop($this->fragTable);
$lastFragment = end($this->fragTable);
}
// Count total fragments by adding all entries in compactly coded segment table
$invalidFragCount = false;
$prev = reset($this->segTable);
$this->fragCount = $prev['fragmentsPerSegment'];
while ($current = next($this->segTable))
{
$this->fragCount += ($current['firstSegment'] - $prev['firstSegment'] - 1) * $prev['fragmentsPerSegment'];
$this->fragCount += $current['fragmentsPerSegment'];