Avoid warnings about incompatible pointer types
Avoid warnings about incompatible pointer types

This change needs to be tested properly so that it doesn't cause issues.
Without this change, the code would be buggy on big endian architectures.

mstorsjo/vo-aacenc,mstorsjo/vo-aacenc,vamsirajendra/vo-aacenc,Distrotech/vo-aacenc,Distrotech/vo-aacenc,Distrotech/vo-aacenc,vamsirajendra/vo-aacenc