function DownloadFragments($cc, $manifest, $opt = array())
{
$start = 0;
extract($opt, EXTR_IF_EXISTS);
$this->ParseManifest($cc, $manifest);
$segNum = $this->segStart;
$fragNum = $this->fragStart;
if ($start) {
$segNum = $this->GetSegmentFromFragment($start);
$fragNum = $start - 1;
$this->segStart = $segNum;
$this->fragStart = $fragNum;
}
$this->lastFrag = $fragNum;
$opt['cc'] = $cc;
$opt['duration'] = 0;
$firstFragment = reset($this->fragTable);
LogInfo(sprintf("Fragments Total: %s, First: %s, Start: %s, Parallel: %s", $this->fragCount, $firstFragment['firstFragment'], $fragNum + 1, $this->parallel));
// Extract baseFilename
$this->baseFilename = $this->media['url'];
if (substr($this->baseFilename, -1) == '/') {
$this->baseFilename = substr($this->baseFilename, 0, -1);
}
$this->baseFilename = RemoveExtension($this->baseFilename);
$lastSlash = strrpos($this->baseFilename, '/');
if ($lastSlash !== false) {
$this->baseFilename = substr($this->baseFilename, $lastSlash + 1);
}
if (strpos($manifest, '?')) {
$this->baseFilename = md5(substr($manifest, 0, strpos($manifest, '?'))) . '_' . $this->baseFilename;
} else {
$this->baseFilename = md5($manifest) . '_' . $this->baseFilename;
}
$this->baseFilename .= "Seg" . $segNum . "-Frag";
if ($fragNum >= $this->fragCount) {
LogError("No fragment available for downloading");
}
$this->fragUrl = AbsoluteUrl($this->baseUrl, $this->media['url']);
LogDebug("Base Fragment Url:\n" . $this->fragUrl . "\n");
LogDebug("Downloading Fragments:\n");
while ($fragNum < $this->fragCount or $cc->active) {
while (count($cc->ch) < $this->parallel and $fragNum < $this->fragCount) {
$frag = array();
$fragNum = $fragNum + 1;
$frag['id'] = $fragNum;
LogInfo("Downloading {$fragNum}/{$this->fragCount} fragments", true);
if (in_array_field($fragNum, "firstFragment", $this->fragTable, true)) {
$this->discontinuity = value_in_array_field($fragNum, "firstFragment", "discontinuityIndicator", $this->fragTable, true);
} else {
$closest = reset($this->fragTable);
$closest = $closest['firstFragment'];
while ($current = next($this->fragTable)) {
if ($current['firstFragment'] < $fragNum) {
$closest = $current['firstFragment'];
} else {
break;
}
}
$this->discontinuity = value_in_array_field($closest, "firstFragment", "discontinuityIndicator", $this->fragTable, true);
}
if ($this->discontinuity !== "") {
LogDebug("Skipping fragment {$fragNum} due to discontinuity, Type: " . $this->discontinuity);
$frag['response'] = false;
$this->rename = true;
} else {
if (file_exists($this->baseFilename . $fragNum)) {
LogDebug("Fragment {$fragNum} is already downloaded");
$frag['response'] = file_get_contents($this->baseFilename . $fragNum);
}
}
if (isset($frag['response'])) {
if ($this->WriteFragment($frag, $opt) === STOP_PROCESSING) {
break 2;
} else {
continue;
}
}
LogDebug("Adding fragment {$fragNum} to download queue");
$segNum = $this->GetSegmentFromFragment($fragNum);
$cc->addDownload($this->fragUrl . "Seg" . $segNum . "-Frag" . $fragNum . $this->media['queryString'], $fragNum);
}
$downloads = $cc->checkDownloads();
if ($downloads !== false) {
for ($i = 0; $i < count($downloads); $i++) {
$frag = array();
$download = $downloads[$i];
$frag['id'] = $download['id'];
if ($download['status'] == 200) {
if ($this->VerifyFragment($download['response'])) {
LogDebug("Fragment " . $this->baseFilename . $download['id'] . " successfully downloaded");
if (!($this->live or $this->play)) {
file_put_contents($this->baseFilename . $download['id'], $download['response']);
}
$frag['response'] = $download['response'];
} else {
LogDebug("Fragment " . $download['id'] . " failed to verify");
LogDebug("Adding fragment " . $download['id'] . " to download queue");
$cc->addDownload($download['url'], $download['id']);
}
} else {
if ($download['status'] === false) {
LogDebug("Fragment " . $download['id'] . " failed to download");
LogDebug("Adding fragment " . $download['id'] . " to download queue");
$cc->addDownload($download['url'], $download['id']);
} else {
if ($download['status'] == 403) {
LogError("Access Denied! Unable to download fragments.");
} else {
if ($download['status'] == 503) {
LogDebug("Fragment " . $download['id'] . " seems temporary unavailable");
LogDebug("Adding fragment " . $download['id'] . " to download queue");
$cc->addDownload($download['url'], $download['id']);
} else {
LogDebug("Fragment " . $download['id'] . " doesn't exist, Status: " . $download['status']);
$frag['response'] = false;
$this->rename = true;
/* Resync with latest available fragment when we are left behind due to slow *
* connection and short live window on streaming server. make sure to reset *
* the last written fragment. */
if ($this->live and $fragNum >= $this->fragCount and $i + 1 == count($downloads) and !$cc->active) {
LogDebug("Trying to resync with latest available fragment");
if ($this->WriteFragment($frag, $opt) === STOP_PROCESSING) {
break 2;
}
unset($frag['response']);
$this->UpdateBootstrapInfo($cc, $this->bootstrapUrl);
$fragNum = $this->fragCount - 1;
$this->lastFrag = $fragNum;
}
}
}
}
}
if (isset($frag['response'])) {
if ($this->WriteFragment($frag, $opt) === STOP_PROCESSING) {
break 2;
}
}
}
unset($downloads, $download);
}
if ($this->live and $fragNum >= $this->fragCount and !$cc->active) {
$this->UpdateBootstrapInfo($cc, $this->bootstrapUrl);
}
}
LogInfo("");
LogDebug("\nAll fragments downloaded successfully\n");
$cc->stopDownloads();
$this->processed = true;
}
function DownloadFragments($cc, $manifest, $opt = array())
{
$start = 0;
extract($opt, EXTR_IF_EXISTS);
$this->ParseManifest($cc, $manifest);
$segNum = $this->segStart;
$fragNum = $this->fragStart;
if ($start) {
if ($segNum > 1) {
if ($start % $this->fragsPerSeg) {
$segNum = (int) ($start / $this->fragsPerSeg + 1);
} else {
$segNum = (int) ($start / $this->fragsPerSeg);
}
}
$fragNum = $start - 1;
$this->segStart = $segNum;
$this->fragStart = $fragNum;
}
$this->lastFrag = $fragNum;
$opt['cc'] = $cc;
$opt['duration'] = 0;
// Extract baseFilename
$this->baseFilename = $this->media['url'];
if (substr($this->baseFilename, -1) == '/') {
$this->baseFilename = substr($this->baseFilename, 0, -1);
}
$this->baseFilename = RemoveExtension($this->baseFilename);
if (strrpos($this->baseFilename, '/')) {
$this->baseFilename = substr($this->baseFilename, strrpos($this->baseFilename, '/') + 1);
}
if (strpos($manifest, "?")) {
$this->baseFilename = md5(substr($manifest, 0, strpos($manifest, "?"))) . "_" . $this->baseFilename;
} else {
$this->baseFilename = md5($manifest) . "_" . $this->baseFilename;
}
$this->baseFilename .= "Seg" . $segNum . "-Frag";
if ($fragNum >= $this->fragCount) {
LogError("No fragment available for downloading");
}
if (isHttpUrl($this->media['url'])) {
$this->fragUrl = $this->media['url'];
} else {
$this->fragUrl = $this->baseUrl . "/" . $this->media['url'];
}
$this->fragUrl = NormalizePath($this->fragUrl);
LogDebug("Base Fragment Url:\n" . $this->fragUrl . "\n");
LogDebug("Downloading Fragments:\n");
while ($fragNum < $this->fragCount or $cc->active) {
while (count($cc->ch) < $this->parallel and $fragNum < $this->fragCount) {
$frag = array();
$fragNum = $fragNum + 1;
$frag['id'] = $fragNum;
LogInfo("Downloading {$fragNum}/{$this->fragCount} fragments", true);
if (in_array_field($fragNum, "firstFragment", $this->fragTable, true)) {
$this->discontinuity = value_in_array_field($fragNum, "firstFragment", "discontinuityIndicator", $this->fragTable, true);
} else {
$closest = 1;
foreach ($this->fragTable as $item) {
if ($item['firstFragment'] < $fragNum) {
$closest = $item['firstFragment'];
} else {
break;
}
}
$this->discontinuity = value_in_array_field($closest, "firstFragment", "discontinuityIndicator", $this->fragTable, true);
}
if ($this->discontinuity == 1 or $this->discontinuity == 3) {
LogDebug("Skipping fragment {$fragNum} due to discontinuity");
$frag['response'] = false;
$this->rename = true;
} else {
if (file_exists($this->baseFilename . $fragNum)) {
LogDebug("Fragment {$fragNum} is already downloaded");
$frag['response'] = file_get_contents($this->baseFilename . $fragNum);
}
}
if (isset($frag['response'])) {
if ($this->WriteFragment($frag, $opt) === 2) {
break 2;
} else {
continue;
}
}
/* Increase or decrease segment number if current fragment is not available */
/* in selected segment range */
if (count($this->segTable) > 1) {
if ($fragNum > $segNum * $this->fragsPerSeg) {
$segNum++;
} else {
if ($fragNum <= ($segNum - 1) * $this->fragsPerSeg) {
$segNum--;
}
}
}
LogDebug("Adding fragment {$fragNum} to download queue");
$cc->addDownload($this->fragUrl . "Seg" . $segNum . "-Frag" . $fragNum . $this->auth, $fragNum);
}
$downloads = $cc->checkDownloads();
if ($downloads !== false) {
for ($i = 0; $i < count($downloads); $i++) {
$frag = array();
$download = $downloads[$i];
$frag['id'] = $download['id'];
if ($download['status'] == 200) {
if ($this->VerifyFragment($download['response'])) {
LogDebug("Fragment " . $this->baseFilename . $download['id'] . " successfully downloaded");
if (!($this->live or $this->play)) {
file_put_contents($this->baseFilename . $download['id'], $download['response']);
}
$frag['response'] = $download['response'];
} else {
LogDebug("Fragment " . $download['id'] . " failed to verify");
LogDebug("Adding fragment " . $download['id'] . " to download queue");
$cc->addDownload($download['url'], $download['id']);
}
} else {
if ($download['status'] === false) {
LogDebug("Fragment " . $download['id'] . " failed to download");
LogDebug("Adding fragment " . $download['id'] . " to download queue");
$cc->addDownload($download['url'], $download['id']);
} else {
if ($download['status'] == 403) {
LogError("Access Denied! Unable to download fragments.");
} else {
LogDebug("Fragment " . $download['id'] . " doesn't exist, Status: " . $download['status']);
$frag['response'] = false;
$this->rename = true;
/* Resync with latest available fragment when we are left behind due to */
/* slow connection and short live window on streaming server. make sure */
/* to reset the last written fragment. */
if ($this->live and $i + 1 == count($downloads) and !$cc->active) {
LogDebug("Trying to resync with latest available fragment");
if ($this->WriteFragment($frag, $opt) === 2) {
break 2;
}
unset($frag['response']);
$this->UpdateBootstrapInfo($cc, $this->bootstrapUrl);
$fragNum = $this->fragCount - 1;
$this->lastFrag = $fragNum;
}
}
}
}
if (isset($frag['response'])) {
if ($this->WriteFragment($frag, $opt) === 2) {
break 2;
}
}
}
unset($downloads, $download);
}
if ($this->live and $fragNum >= $this->fragCount and !$cc->active) {
$this->UpdateBootstrapInfo($cc, $this->bootstrapUrl);
}
}
LogInfo("");
LogDebug("\nAll fragments downloaded successfully\n");
$cc->stopDownloads();
$this->processed = true;
}
