Hi.

I have tried to create a Pluggable bin element which, at the moment, is just a bin containing two NullFilter elements linked together. A NullFilter is a raw video filter which simply copies input to output. The NullFilter itself has been tested and works. Also, the PluginLoader is tested and works. The test pipeline works if PluggableBin is replaced by NullFilter.

However, the PluggableBin fails with the following messages:

Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data flow error.
Additional debug info:
gstbasesrc.c(2625): gst_base_src_loop (): /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
streaming task paused, reason not-linked (-1)
ERROR: pipeline doesn't want to preroll.

Links to the sources and test pipeline are given below.

Is anyone able to shed any light on what might be wrong?

Regards,  Martin


<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/PluginLoader.c" target="_top" rel="nofollow" link="external">PluginLoader.c</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/PluginLoader.h" target="_top" rel="nofollow" link="external">PluginLoader.h</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/PluggableBin.c" target="_top" rel="nofollow" link="external">PluggableBin.c</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/PluggableBin.h" target="_top" rel="nofollow" link="external">PluggableBin.h</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/NullFilter.c" target="_top" rel="nofollow" link="external">NullFilter.c</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/NullFilter.h" target="_top" rel="nofollow" link="external">NullFilter.h</a>
<a href="http://gstreamer-devel.966125.n4.nabble.com/file/n4665427/NullBin" target="_top" rel="nofollow" link="external">NullBin</a>

        
        
        
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