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pads->data is the public list. It is dynamically rebuilt at each call to check_collected, in check_pads to be specific. When you add a pad and collectpads have been started, it is not added to the public list. Thus there exists a possible race where : 1) You would add a pad to collectpads while running. 2) You set collectpads to flushing before check_collected has been called again -> the pad is not set to flushing 3) the pad starts pushing data as downstream might not be prepared, in the case of adder it then returns FLOW_FLUSHING. 4) elements like demuxers, when they get a FLOW_FLUSHING, stop their tasks, never to be seen again. https://bugzilla.gnome.org/show_bug.cgi?id=708636 |
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