Opencv filter error

[xrgu...@gmail.com]

Hello, All:

I am trying to load an opencv filter and got some error like this:

_media_element_impl_bus_message()  MediaElement error: error message: 0x7fb16400a880, time 99:99:99.999999999, seq-num 747, element 'kmsopencvfilter0', GstMessageError, gerror=(GError)NULL, debug=(string)"Undefined\ filter\ error";

At this time, the remote stream could be sent back, but without the effects of filter. That might be caused by trying to read from a csv file. I checked kurento-media-server log and got that error mentioned above. Inside the log, it shows filter module loaded successfully.

Any suggestion will be appreciated!

[David Robison]

I had a similar problem with an opencv filter I wrote. It turns out that the problem was my filter was throwing a C++ exception that was not caught in the filter. The "undefined filter error" was really an error internal to the opencv filter. Try using try/catch blocks in your filter to see if there is an uncaught exception. Mine was related to an incompatibility in the number of channels of two frames I was comparing in the filter. David

[Rebecca Guo]

Hi, David:

Thank you for those suggestions. Yes, it seems like the problem is about opencv code. Will try some try/catch to find the uncaught exception. And thank you for sharing with me the problem you encountered! Reb

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