manifest switch is supposed to work with remote manifest url not locally saved manifest file.
Code:
php AdobeHDS.php --manifest "http://some.server.com/manifest.f4m"
if you are trying to join locally saved fragments then use base filename without the trailing counter.
Code:
php AdobeHDS.php 9000Seg
or
Code:
php AdobeHDS.php --fragments 9000Seg
also f4f extension is optional. go through
wiki once again.