UMSP plugin development

This page is under development and may not be very useful --Mad ady 12:51, 16 December 2010 (UTC)

How UMSP works

• TODO - High-level explanation

Plugin architecture

• TODO - explain how the plugins are structured and how they intercommunicate

Plugin API

Here is a list of functions that can be used by your plugins, provided by the UMSP server:

• TODO

Sample plugin

• TODO - when I learn a bit more about the process :)

Plugins with proxies

• TODO What should proxies do; how to support navigation, etc.

Logs

You can log your errors/warnings/etc to /var/www/php5/error_log by using

error_log("whatever you're trying to log");

As a best practice rule you can add a script name and a sevrity to help with filtering later on:

error_log("yt-subscriptions-proxy: INFO: whatever you're trying to log");

It is recommended (for your own troubleshooting ease) to enable logs only when you need them and disable them (except for errors) before commiting to SVN.

The same log file will hold syntax errors and other PHP errors. More information: http://forum.wdlxtv.com/viewtopic.php?f=3&t=2756&start=0

Troubleshooting

• User PaulF submitted a test script for UMSP plugins that can show output and errors. Save the file as /tmp/www-tmp/umsp2html.php:

http://forum.wdlxtv.com/viewtopic.php?f=3&t=2756#p21358. On your PC browse to: http://wdtvlive-IP/tmp/umsp2html.php?path=0

• You can start the MediaPlayer process (which handles playback) in debug mode to observe what's going on. Details here: http://forum.wdlxtv.com/viewtopic.php?f=53&t=517#p3287. You will be getting a lot of debug output including the DLNA commands for skipping, pausing, etc:

killall MediaLogic
MediaLogic AV MSGL_DBG