frame/texture: use dividers when allocating buffers

Allows render pipeline to know the "real" and "simulated" resolution of a
divided buffer.

app/codec/oiio/oiiodecoder.cpp

@@ -154,7 +154,7 @@ bool OIIODecoder::Open()
   return true;
 }
 
-FramePtr OIIODecoder::RetrieveVideo(const rational &timecode, const int& divider)
+FramePtr OIIODecoder::RetrieveVideo(const rational &timecode, const int& divider, bool /*use_proxies*/)
 {
   QMutexLocker locker(&mutex_);