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O.P. RE: Msg Plus Live not releasing DirectShow Filters
The problem appears to be due to the audio rather than the video parts of DirectShow - it is the FFDShow Audio Decoder which is being not being released. It may well be that FFDShow is adding itself into the audio render graph when it isn't really needed and not expected, such as during playback of a wave file, and hence not being cleaned up.
I created a filter graph of playing a wave file in GraphEdit and it appears that FFDShow does add itself to the graph even when not needed. While this still means that Plus! isn't cleaning up the filter graph properly following sound playback, it may be that it is not cleaning the filters that are not normally created.
The work around is to reduce the merit of the FFDShow audio filter so that it is not created in these cases it would still be preferable that Plus! properly disposed of the filters in the playback filter graph.
Peter
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