/***************************************
* 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 DCTCoefficientFirst implements Parsable
{
private DCTCoefficientValues value = null;
public DCTCoefficientValues getValue()
{
return value;
}
public void parse(Bitstream bitstream) throws IOException
{
int run = 0;
int level = 0;
switch (bitstream.nextbits(2))
{
case 2:
bitstream.skipbits(2);
run = 0;
level = 1;
break;
case 3:
bitstream.skipbits(2);
run = 0;
level = -1;
break;
default:
switch (bitstream.nextbits(4))
{
case 6:
bitstream.skipbits(4);
run = 1;
level = 1;
break;
case 7:
bitstream.skipbits(4);
run = 1;
level = -1;
break;
default:
switch (bitstream.nextbits(5)) {
case 8:
bitstream.skipbits(5);
run = 0;
level = 2;
break;
case 9:
bitstream.skipbits(5);
run = 0;
level = -2;
break;
case 10:
bitstream.skipbits(5);
run = 2;
level = 1;
break;
case 11:
bitstream.skipbits(5);
run = 2;
level = -1;
break;
default:
switch (bitstream.nextbits(6))
{
case 10:
bitstream.skipbits(6);
run = 0;
level = 3;
break;
case 11:
bitstream.skipbits(6);
run = 0;
level = -3;
break;
case 14:
bitstream.skipbits(6);
run = 3;
level = 1;
break;
case 15:
bitstream.skipbits(6);
run = 3;
level = -1;
break;
case 12:
bitstream.skipbits(6);
run = 4;
level = 1;
break;
case 13:
bitstream.skipbits(6);
run = 4;
level = -1;
break;
default:
switch (bitstream.nextbits(7))
{
case 12:
bitstream.skipbits(7);
run = 1;
level = 2;
break;
case 13:
bitstream.skipbits(7);
run = 1;
level = -2;
break;
case 14:
bitstream.skipbits(7);
run = 5;
level = 1;
break;
case 15:
bitstream.skipbits(7);
run = 5;
level = -1;
break;
case 10:
bitstream.skipbits(7);
run = 6;
level = 1;
break;
case 11:
bitstream.skipbits(7);
run = 6;
level = -1;
break;
case 8:
bitstream.skipbits(7);
run = 7;
level = 1;
break;
case 9:
bitstream.skipbits(7);
run = 7;
level = -1;
break;
default:
switch (bitstream.nextbits(8))
{
case 12:
bitstream.skipbits(8);
run = 0;
level = 4;
break;
case 13:
bitstream.skipbits(8);
run = 0;
level = -4;
break;
case 8:
bitstream.skipbits(8);
run = 2;
level = 2;
break;
case 9:
bitstream.skipbits(8);
run = 2;
level = -2;
break;
case 14:
bitstream.skipbits(8);
run = 8;
level = 1;
break;
case 15:
bitstream.skipbits(8);
run = 8;
level = -1;
break;
case 10:
bitstream.skipbits(8);
run = 9;
level = 1;
break;
case 11:
bitstream.skipbits(8);
run = 9;
level = -1;
break;
default:
switch (bitstream.nextbits(9))
{
case 76:
bitstream.skipbits(9);
run = 0;
level = 5;
break;
case 77:
bitstream.skipbits(9);
run = 0;
level = -5;
break;
case 66:
bitstream.skipbits(9);
run = 0;
level = 6;
break;
case 67:
bitstream.skipbits(9);
run = 0;
level = -6;
break;
case 74:
bitstream.skipbits(9);
run = 1;
level = 3;
break;
case 75:
bitstream.skipbits(9);
run = 1;
level = -3;
break;
case 72:
bitstream.skipbits(9);
run = 3;
level = 2;
break;
case 73:
bitstream.skipbits(9);
run = 3;
level = -2;
break;
case 78:
bitstream.skipbits(9);
run = 10;
level = 1;
break;
case 79:
bitstream.skipbits(9);
run = 10;
level = -1;
break;
case 70:
bitstream.skipbits(9);
run = 11;
level = 1;
break;
case 71:
bitstream.skipbits(9);
run = 11;
level = -1;
break;
case 68:
bitstream.skipbits(9);
run = 12;
level = 1;
break;
case 69:
bitstream.skipbits(9);
run = 12;
level = -1;
break;
case 64:
bitstream.skipbits(9);
run = 13;
level = 1;
break;
case 65:
bitstream.skipbits(9);
run = 13;
level = -1;
break;
default:
switch (bitstream.nextbits(11))
{
case 20:
bitstream.skipbits(11);
run = 0;
level = 7;
break;
case 21:
bitstream.skipbits(11);
run = 0;
level = -7;
break;
case 24:
bitstream.skipbits(11);
run = 1;
level = 4;
break;
case 25:
bitstream.skipbits(11);
run = 1;
level = -4;
break;
case 22:
bitstream.skipbits(11);
run = 2;
level = 3;
break;
case 23:
bitstream.skipbits(11);
run = 2;
level = -3;
break;
case 30:
bitstream.skipbits(11);
run = 4;
level = 2;
break;
case 31:
bitstream.skipbits(11);
run = 4;
level = -2;
break;
case 18:
bitstream.skipbits(11);
run = 5;
level = 2;
break;
case 19:
bitstream.skipbits(11);
run = 5;
level = -2;
break;
case 28:
bitstream.skipbits(11);
run = 14;
level = 1;
break;
case 29:
bitstream.skipbits(11);
run = 14;
level = -1;
break;
case 26:
bitstream.skipbits(11);
run = 15;
level = 1;
break;
case 27:
bitstream.skipbits(11);
run = 15;
level = -1;
break;
case 16:
bitstream.skipbits(11);
run = 16;
level = 1;
break;
case 17:
bitstream.skipbits(11);
run = 16;
level = -1;
break;
default:
switch (bitstream.nextbits(13))
{
case 58:
bitstream.skipbits(13);
run = 0;
level = 8;
break;
case 59:
bitstream.skipbits(13);
run = 0;
level = -8;
break;
case 48:
bitstream.skipbits(13);
run = 0;
level = 9;
break;
case 49:
bitstream.skipbits(13);
run = 0;
level = -9;
break;
case 38:
bitstream.skipbits(13);
run = 0;
level = 10;
break;
case 39:
bitstream.skipbits(13);
run = 0;
level = -10;
break;
case 32:
bitstream.skipbits(13);
run = 0;
level = 11;
break;
case 33:
bitstream.skipbits(13);
run = 0;
level = -11;
break;
case 54:
bitstream.skipbits(13);
run = 1;
level = 5;
break;
case 55:
bitstream.skipbits(13);
run = 1;
level = -5;
break;
case 40:
bitstream.skipbits(13);
run = 2;
level = 4;
break;
case 41:
bitstream.skipbits(13);
run = 2;
level = -4;
break;
case 56:
bitstream.skipbits(13);
run = 3;
level = 3;
break;
case 57:
bitstream.skipbits(13);
run = 3;
level = -3;
break;
case 36:
bitstream.skipbits(13);
run = 4;
level = 3;
break;
case 37:
bitstream.skipbits(13);
run = 4;
level = -3;
break;
case 60:
bitstream.skipbits(13);
run = 6;
level = 2;
break;
case 61:
bitstream.skipbits(13);
run = 6;
level = -2;
break;
case 42:
bitstream.skipbits(13);
run = 7;
level = 2;
break;
case 43:
bitstream.skipbits(13);
run = 7;
level = -2;
break;
case 34:
bitstream.skipbits(13);
run = 8;
level = 2;
break;
case 35:
bitstream.skipbits(13);
run = 8;
level = -2;
break;
case 62:
bitstream.skipbits(13);
run = 17;
level = 1;
break;
case 63:
bitstream.skipbits(13);
run = 17;
level = -1;
break;
case 52:
bitstream.skipbits(13);
run = 18;
level = 1;
break;
case 53:
bitstream.skipbits(13);
run = 18;
level = -1;
break;
case 50:
bitstream.skipbits(13);
run = 19;
level = 1;
break;
case 51:
bitstream.skipbits(13);
run = 19;
level = -1;
break;
case 46:
bitstream.skipbits(13);
run = 20;
level = 1;
break;
case 47:
bitstream.skipbits(13);
run = 20;
level = -1;
break;
case 44:
bitstream.skipbits(13);
run = 21;
level = 1;
break;
case 45:
bitstream.skipbits(13);
run = 21;
level = -1;
break;
default:
switch (bitstream.nextbits(14))
{
case 52:
bitstream.skipbits(14);
run = 0;
level = 12;
break;
case 53:
bitstream.skipbits(14);
run = 0;
level = -12;
break;
case 50:
bitstream.skipbits(14);
run = 0;
level = 13;
break;
case 51:
bitstream.skipbits(14);
run = 0;
level = -13;
break;
case 48:
bitstream.skipbits(14);
run = 0;
level = 14;
break;
case 49:
bitstream.skipbits(14);
run = 0;
level = -14;
break;
case 46:
bitstream.skipbits(14);
run = 0;
level = 15;
break;
case 47:
bitstream.skipbits(14);
run = 0;
level = -15;
break;
case 44:
bitstream.skipbits(14);
run = 1;
level = 6;
break;
case 45:
bitstream.skipbits(14);
run = 1;
level = -6;
break;
case 42:
bitstream.skipbits(14);
run = 1;
level = 7;
break;
case 43:
bitstream.skipbits(14);
run = 1;
level = -7;
break;
case 40:
bitstream.skipbits(14);
run = 2;
level = 5;
break;
case 41:
bitstream.skipbits(14);
run = 2;
level = -5;
break;
case 38:
bitstream.skipbits(14);
run = 3;
level = 4;
break;
case 39:
bitstream.skipbits(14);
run = 3;
level = -4;
break;
case 36:
bitstream.skipbits(14);
run = 5;
level = 3;
break;
case 37:
bitstream.skipbits(14);
run = 5;
level = -3;
break;
case 34:
bitstream.skipbits(14);
run = 9;
level = 2;
break;
case 35:
bitstream.skipbits(14);
run = 9;
level = -2;
break;
case 32:
bitstream.skipbits(14);
run = 10;
level = 2;
break;
case 33:
bitstream.skipbits(14);
run = 10;
level = -2;
break;
case 62:
bitstream.skipbits(14);
run = 22;
level = 1;
break;
case 63:
bitstream.skipbits(14);
run = 22;
level = -1;
break;
case 60:
bitstream.skipbits(14);
run = 23;
level = 1;
break;
case 61:
bitstream.skipbits(14);
run = 23;
level = -1;
break;
case 58:
bitstream.skipbits(14);
run = 24;
level = 1;
break;
case 59:
bitstream.skipbits(14);
run = 24;
level = -1;
break;
case 56:
bitstream.skipbits(14);
run = 25;
level = 1;
break;
case 57:
bitstream.skipbits(14);
run = 25;
level = -1;
break;
case 54:
bitstream.skipbits(14);
run = 26;
level = 1;
break;
case 55:
bitstream.skipbits(14);
run = 26;
level = -1;
break;
default:
switch (bitstream.nextbits(15))
{
case 62:
bitstream.skipbits(15);
run = 0;
level = 16;
break;
case 63:
bitstream.skipbits(15);
run = 0;
level = -16;
break;
case 60:
bitstream.skipbits(15);
run = 0;
level = 17;
break;
case 61:
bitstream.skipbits(15);
run = 0;
level = -17;
break;
case 58:
bitstream.skipbits(15);
run = 0;
level = 18;
break;
case 59:
bitstream.skipbits(15);
run = 0;
level = -18;
break;
case 56:
bitstream.skipbits(15);
run = 0;
level = 19;
break;
case 57:
bitstream.skipbits(15);
run = 0;
level = -19;
break;
case 54:
bitstream.skipbits(15);
run = 0;
level = 20;
break;
case 55:
bitstream.skipbits(15);
run = 0;
level = -20;
break;
case 52:
bitstream.skipbits(15);
run = 0;
level = 21;
break;
case 53:
bitstream.skipbits(15);
run = 0;
level = -21;
break;
case 50:
bitstream.skipbits(15);
run = 0;
level = 22;
break;
case 51:
bitstream.skipbits(15);
run = 0;
level = -22;
break;
case 48:
bitstream.skipbits(15);
run = 0;
level = 23;
break;
case 49:
bitstream.skipbits(15);
run = 0;
level = -23;
break;
case 46:
bitstream.skipbits(15);
run = 0;
level = 24;
break;
case 47:
bitstream.skipbits(15);
run = 0;
level = -24;
break;
case 44:
bitstream.skipbits(15);
run = 0;
level = 25;
break;
case 45:
bitstream.skipbits(15);
run = 0;
level = -25;
break;
case 42:
bitstream.skipbits(15);
run = 0;
level = 26;
break;
case 43:
bitstream.skipbits(15);
run = 0;
level = -26;
break;
case 40:
bitstream.skipbits(15);
run = 0;
level = 27;
break;
case 41:
bitstream.skipbits(15);
run = 0;
level = -27;
break;
case 38:
bitstream.skipbits(15);
run = 0;
level = 28;
break;
case 39:
bitstream.skipbits(15);
run = 0;
level = -28;
break;
case 36:
bitstream.skipbits(15);
run = 0;
level = 29;
break;
case 37:
bitstream.skipbits(15);
run = 0;
level = -29;
break;
case 34:
bitstream.skipbits(15);
run = 0;
level = 30;
break;
case 35:
bitstream.skipbits(15);
run = 0;
level = -30;
break;
case 32:
bitstream.skipbits(15);
run = 0;
level = 31;
break;
case 33:
bitstream.skipbits(15);
run = 0;
level = -31;
break;
default:
switch (bitstream.nextbits(16))
{
case 48:
bitstream.skipbits(16);
run = 0;
level = 32;
break;
case 49:
bitstream.skipbits(16);
run = 0;
level = -32;
break;
case 46:
bitstream.skipbits(16);
run = 0;
level = 33;
break;
case 47:
bitstream.skipbits(16);
run = 0;
level = -33;
break;
case 44:
bitstream.skipbits(16);
run = 0;
level = 34;
break;
case 45:
bitstream.skipbits(16);
run = 0;
level = -34;
break;
case 42:
bitstream.skipbits(16);
run = 0;
level = 35;
break;
case 43:
bitstream.skipbits(16);
run = 0;
level = -35;
break;
case 40:
bitstream.skipbits(16);
run = 0;
level = 36;
break;
case 41:
bitstream.skipbits(16);
run = 0;
level = -36;
break;
case 38:
bitstream.skipbits(16);
run = 0;
level = 37;
break;
case 39:
bitstream.skipbits(16);
run = 0;
level = -37;
break;
case 36:
bitstream.skipbits(16);
run = 0;
level = 38;
break;
case 37:
bitstream.skipbits(16);
run = 0;
level = -38;
break;
case 34:
bitstream.skipbits(16);
run = 0;
level = 39;
break;
case 35:
bitstream.skipbits(16);
run = 0;
level = -39;
break;
case 32:
bitstream.skipbits(16);
run = 0;
level = 40;
break;
case 33:
bitstream.skipbits(16);
run = 0;
level = -40;
break;
case 62:
bitstream.skipbits(16);
run = 1;
level = 8;
break;
case 63:
bitstream.skipbits(16);
run = 1;
level = -8;
break;
case 60:
bitstream.skipbits(16);
run = 1;
level = 9;
break;
case 61:
bitstream.skipbits(16);
run = 1;
level = -9;
break;
case 58:
bitstream.skipbits(16);
run = 1;
level = 10;
break;
case 59:
bitstream.skipbits(16);
run = 1;
level = -10;
break;
case 56:
bitstream.skipbits(16);
run = 1;
level = 11;
break;
case 57:
bitstream.skipbits(16);
run = 1;
level = -11;
break;
case 54:
bitstream.skipbits(16);
run = 1;
level = 12;
break;
case 55:
bitstream.skipbits(16);
run = 1;
level = -12;
break;
case 52:
bitstream.skipbits(16);
run = 1;
level = 13;
break;
case 53:
bitstream.skipbits(16);
run = 1;
level = -13;
break;
case 50:
bitstream.skipbits(16);
run = 1;
level = 14;
break;
case 51:
bitstream.skipbits(16);
run = 1;
level = -14;
break;
default:
switch (bitstream.nextbits(17))
{
case 38:
bitstream.skipbits(17);
run = 1;
level = 15;
break;
case 39:
bitstream.skipbits(17);
run = 1;
level = -15;
break;
case 36:
bitstream.skipbits(17);
run = 1;
level = 16;
break;
case 37:
bitstream.skipbits(17);
run = 1;
level = -16;
break;
case 34:
bitstream.skipbits(17);
run = 1;
level = 17;
break;
case 35:
bitstream.skipbits(17);
run = 1;
level = -17;
break;
case 32:
bitstream.skipbits(17);
run = 1;
level = 18;
break;
case 33:
bitstream.skipbits(17);
run = 1;
level = -18;
break;
case 40:
bitstream.skipbits(17);
run = 6;
level = 3;
break;
case 41:
bitstream.skipbits(17);
run = 6;
level = -3;
break;
case 52:
bitstream.skipbits(17);
run = 11;
level = 2;
break;
case 53:
bitstream.skipbits(17);
run = 11;
level = -2;
break;
case 50:
bitstream.skipbits(17);
run = 12;
level = 2;
break;
case 51:
bitstream.skipbits(17);
run = 12;
level = -2;
break;
case 48:
bitstream.skipbits(17);
run = 13;
level = 2;
break;
case 49:
bitstream.skipbits(17);
run = 13;
level = -2;
break;
case 46:
bitstream.skipbits(17);
run = 14;
level = 2;
break;
case 47:
bitstream.skipbits(17);
run = 14;
level = -2;
break;
case 44:
bitstream.skipbits(17);
run = 15;
level = 2;
break;
case 45:
bitstream.skipbits(17);
run = 15;
level = -2;
break;
case 42:
bitstream.skipbits(17);
run = 16;
level = 2;
break;
case 43:
bitstream.skipbits(17);
run = 16;
level = -2;
break;
case 62:
bitstream.skipbits(17);
run = 27;
level = 1;
break;
case 63:
bitstream.skipbits(17);
run = 27;
level = -1;
break;
case 60:
bitstream.skipbits(17);
run = 28;
level = 1;
break;
case 61:
bitstream.skipbits(17);
run = 28;
level = -1;
break;
case 58:
bitstream.skipbits(17);
run = 29;
level = 1;
break;
case 59:
bitstream.skipbits(17);
run = 29;
level = -1;
break;
case 56:
bitstream.skipbits(17);
run = 30;
level = 1;
break;
case 57:
bitstream.skipbits(17);
run = 30;
level = -1;
break;
case 54:
bitstream.skipbits(17);
run = 31;
level = 1;
break;
case 55:
bitstream.skipbits(17);
run = 31;
level = -1;
break;
default:
throw new ParsingException("VLC decode for DCTCoefficientFirst failed.");
}
}
}
}
}
}
}
}
}
}
}
}
}
value = new DCTCoefficientValues(run, level);
}
}