ConnReleaser
bool operator== (const ConnReleaser &c1)
class InputReleaser : public ConnReleaser {
ConnReleaser(input) {}
return dynamic_cast<BMediaInput*>(ConnReleaser::Obj());
class OutputReleaser : public ConnReleaser {
ConnReleaser(output) {}
return dynamic_cast<BMediaOutput*>(ConnReleaser::Obj());