The OSErr type on Mac OS X is int16_t, not int32_t (see http://developer.apple.com/mac/library/documentation/QuickTime/Reference/QTRef_DataTypes/Reference/reference.html). The upper 16 bits will typically be something random (they're entirely undefined). Change the type so it's right; a few places tried to compensate for this by masking out the upper bits, but a few places also missed them, which made for unpredictable behavior. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30854 b3059339-0415-0410-9bf9-f77b7e298cf2