It looks, then, like you need to choose what you're going to use, as these two packages appear to be incompatible with each other (although there may be a later version of gstreamer-plugins
that does not have this problem, or a later version of VLC than the one you're installing, which perhaps doesn't have this problem).
Or, you could use rpm
with the --force-overwrite
switch to force the RPM to install its version of libdv.so.4. This might still break gstreamer-plugins, though.
You might want to read man rpm
or look at the Maximum RPM
site to learn more about the alternative ways to use the rpm
Hope this helps.