rtspsrc failing to communicate warnings.

[Stirling Westrup]

We've been debugging an issue where an rtsp stream wasn't working. It turns
out that we had UDP blocked on a firewall.

The thing is, rtspsrc has a test for this and issues a warning, but our app
never saw the warning and so never alerted us to the issue.

When we turned on debugging for GST_MESSAGES we saw numerous occurrences of
this:

gst_element_post_message_default:<udpsrc1> not posting message
0x7fd740002ba0: no bus

So it seems that rtspsrc is failing to provide a bus to its own plugins and
so they can't send warnings and/or errors to the app. This may be
intentional to avoid spamming the app with errors, but it seems that some
useful messages are getting lost in the process.


-- 
Stirling Westrup
Programmer, Entrepreneur.
https://www.linkedin.com/e/fpf/77228
http://www.linkedin.com/in/swestrup
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http://sourceforge.net/users/stirlingwestrup
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