Originally committed as revision 1975 to svn://svn.ffmpeg.org/ffmpeg/trunk
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
- * This is an array[2][4] of motion compensation functions for 2
+ * This is an array[4][4] of motion compensation functions for 4
* horizontal blocksizes (2,4,8,16) and the 4 halfpel positions<br>
* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b+1)>>1