* ./src/misc/extras.c: removed a duplicate calculation inside a macro.

  * ./src/misc/extras.c: removed a duplicate calculation inside a macro.
  * ./src/libvlc.c: fixed a bug causing all commandline targets to be ignored
    for playback except the last one.
  * ./modules/codec/dv.c: we detach p_vout before quitting.
  * ./modules/codec/xvid.c: fixed image corruption, added a direct rendering
    option which doesn't work yet.