/***************************************
* ViPER-MPEG *
* The Video Processing *
* Evaluation Resource *
* MPEG-1 Decoder *
* Distributed under the LGPL license *
* Terms available at gnu.org. *
* *
* Copyright University of Maryland, *
* College Park. *
***************************************/
package edu.umd.cfar.lamp.mpeg1.video;
import java.io.*;
import edu.columbia.ee.flavor.*;
import edu.umd.cfar.lamp.mpeg1.*;
class MacroblockPattern implements Parsable {
private int value = 0;
public void parse(Bitstream bitstream) throws IOException {
switch (bitstream.nextbits(3)) {
case 7:
bitstream.skipbits(3);
value = 60;
break;
default:
switch (bitstream.nextbits(4)) {
case 13:
bitstream.skipbits(4);
value = 4;
break;
case 12:
bitstream.skipbits(4);
value = 8;
break;
case 11:
bitstream.skipbits(4);
value = 16;
break;
case 10:
bitstream.skipbits(4);
value = 32;
break;
default:
switch (bitstream.nextbits(5)) {
case 19:
bitstream.skipbits(5);
value = 12;
break;
case 18:
bitstream.skipbits(5);
value = 48;
break;
case 17:
bitstream.skipbits(5);
value = 20;
break;
case 16:
bitstream.skipbits(5);
value = 40;
break;
case 15:
bitstream.skipbits(5);
value = 28;
break;
case 14:
bitstream.skipbits(5);
value = 44;
break;
case 13:
bitstream.skipbits(5);
value = 52;
break;
case 12:
bitstream.skipbits(5);
value = 56;
break;
case 11:
bitstream.skipbits(5);
value = 1;
break;
case 10:
bitstream.skipbits(5);
value = 61;
break;
case 9:
bitstream.skipbits(5);
value = 2;
break;
case 8:
bitstream.skipbits(5);
value = 62;
break;
default:
switch (bitstream.nextbits(6)) {
case 15:
bitstream.skipbits(6);
value = 24;
break;
case 14:
bitstream.skipbits(6);
value = 36;
break;
case 13:
bitstream.skipbits(6);
value = 3;
break;
case 12:
bitstream.skipbits(6);
value = 63;
break;
default:
switch (bitstream.nextbits(7)) {
case 23:
bitstream.skipbits(7);
value = 5;
break;
case 22:
bitstream.skipbits(7);
value = 9;
break;
case 21:
bitstream.skipbits(7);
value = 17;
break;
case 20:
bitstream.skipbits(7);
value = 33;
break;
case 19:
bitstream.skipbits(7);
value = 6;
break;
case 18:
bitstream.skipbits(7);
value = 10;
break;
case 17:
bitstream.skipbits(7);
value = 18;
break;
case 16:
bitstream.skipbits(7);
value = 34;
break;
default:
switch (bitstream.nextbits(8)) {
case 31:
bitstream.skipbits(8);
value = 7;
break;
case 30:
bitstream.skipbits(8);
value = 11;
break;
case 29:
bitstream.skipbits(8);
value = 19;
break;
case 28:
bitstream.skipbits(8);
value = 35;
break;
case 27:
bitstream.skipbits(8);
value = 13;
break;
case 26:
bitstream.skipbits(8);
value = 49;
break;
case 25:
bitstream.skipbits(8);
value = 21;
break;
case 24:
bitstream.skipbits(8);
value = 41;
break;
case 23:
bitstream.skipbits(8);
value = 14;
break;
case 22:
bitstream.skipbits(8);
value = 50;
break;
case 21:
bitstream.skipbits(8);
value = 22;
break;
case 20:
bitstream.skipbits(8);
value = 42;
break;
case 19:
bitstream.skipbits(8);
value = 15;
break;
case 18:
bitstream.skipbits(8);
value = 51;
break;
case 17:
bitstream.skipbits(8);
value = 23;
break;
case 16:
bitstream.skipbits(8);
value = 43;
break;
case 15:
bitstream.skipbits(8);
value = 25;
break;
case 14:
bitstream.skipbits(8);
value = 37;
break;
case 13:
bitstream.skipbits(8);
value = 26;
break;
case 12:
bitstream.skipbits(8);
value = 38;
break;
case 11:
bitstream.skipbits(8);
value = 29;
break;
case 10:
bitstream.skipbits(8);
value = 45;
break;
case 9:
bitstream.skipbits(8);
value = 53;
break;
case 8:
bitstream.skipbits(8);
value = 57;
break;
case 7:
bitstream.skipbits(8);
value = 30;
break;
case 6:
bitstream.skipbits(8);
value = 46;
break;
case 5:
bitstream.skipbits(8);
value = 54;
break;
case 4:
bitstream.skipbits(8);
value = 58;
break;
default:
switch (bitstream.nextbits(9)) {
case 7:
bitstream.skipbits(9);
value = 31;
break;
case 6:
bitstream.skipbits(9);
value = 47;
break;
case 5:
bitstream.skipbits(9);
value = 55;
break;
case 4:
bitstream.skipbits(9);
value = 59;
break;
case 3:
bitstream.skipbits(9);
value = 27;
break;
case 2:
bitstream.skipbits(9);
value = 39;
break;
default:
throw new ParsingException(
"VLC decode for MacroblockPattern failed.");
}
}
}
}
}
}
}
}
public int getValue() {
return value;
}
}