public function generate(ChannelInterface $channel, \DateTime $startsAt = null)
{
$targetDuration = $this->options['target_duration'];
if (null === $startsAt) {
$startsAt = new \DateTime();
}
$segments = $this->manager->findPlaying($channel, $startsAt, $targetDuration * 3);
$playlist = new Playlist($segments);
$first = $playlist->getFirst();
if (null === $first) {
return;
}
$age = $first->getEndsAt()->getTimestamp() - $startsAt->getTimestamp() + 1;
$playlist->setAge($age);
$discontinuitySequence = $first->getProgram()->getSequence();
if ($first->isDiscontinuity()) {
--$discontinuitySequence;
}
return new M3u8($playlist, $this->options['version'], $targetDuration, $discontinuitySequence);
}
