Is there any possible way to use piwik for Wowza streaming server to analyze bandwidth usage?
It is possible that this already works because Piwik detects a lot of different log formats.
If it does not work yet for you in PIwik 2.3.0 please create a ticket on our issue tracker: http://dev.piwik.org/trac
See the list of existing feature requests for log analytics: http://dev.piwik.org/trac/query?status=!closed&component=Log+Analytics+(import_logs.py)