Not real where to go from where. I can see the codec:
C:\logstash-7.11.0\bin>logstash-plugin list
Using JAVA_HOME defined java: C:\Program Files\Java\jdk-14.0.1
WARNING, using JAVA_HOME while Logstash distribution comes with a bundled JDK
2021-06-22T14:00:05.971-04:00 [main] WARN FilenoUtil : Native subprocess control requires open access to the JDK IO subsystem
Pass '--add-opens java.base/sun.nio.ch=org.jruby.dist --add-opens java.base/java.io=org.jruby.dist' to enable.
logstash-codec-avro
logstash-codec-cef
logstash-codec-collectd
logstash-codec-dots
logstash-codec-edn
logstash-codec-edn_lines
logstash-codec-es_bulk
logstash-codec-fluent
logstash-codec-graphite
logstash-codec-json
logstash-codec-json_lines
logstash-codec-line
logstash-codec-msgpack
logstash-codec-multiline
logstash-codec-netflow
logstash-codec-plain
logstash-codec-rubydebug
But logstash does not seem to be able to.