www.pudn.com > XvidQP.rar > huffman.cpp
/* huffman.cpp
Huffman decoder for Layer III
01/28/97 : Adapted from "huffman.c" from the ISO MPEG Audio Subgroup Software
Simulation Group's public c source for its MPEG audio decoder. Optimizations
and conversion of stdio routines to stream routines by Jeff Tsay
(ctsay@pasteur.eecs.berkeley.edu). Also most error checks were removed.
02/19/97 (Version 1.81):
Added internal huffman tables converted by:
Timo Jantunen
E-mail: timo.jantunen@hut.fi,
URL: http://www.hut.fi/~jeti/
The file "huffdec" is no longer needed,
and neither are the routines to read from this file. */
/**********************************************************************
Copyright (c) 1991 MPEG/audio software simulation group, All Rights Reserved
huffman.c
**********************************************************************/
/**********************************************************************
* MPEG/audio coding/decoding software, work in progress *
* NOT for public distribution until verified and approved by the *
* MPEG/audio committee. For further information, please contact *
* Davis Pan, 508-493-2241, e-mail: pan@gauss.enet.dec.com *
* *
* VERSION 2.10 *
* changes made since last update: *
* date programmers comment *
*27.2.92 F.O.Witte (ITT Intermetall) *
* email: otto.witte@itt-sc.de *
* tel: ++49 (761)517-125 *
* fax: ++49 (761)517-880 *
*12.6.92 J. Pineda Added sign bit to decoder. *
* 08/24/93 M. Iwadare Changed for 1 pass decoding. *
*--------------------------------------------------------------------*
* 7/14/94 Juergen Koller Bug fixes in Layer III code *
*********************************************************************/
#include "all.h"
#include // needed for definition of NULL
#include "bit_res.h"
#include "huffman.h"
HUFFBITS dmask = 1 << ((sizeof(HUFFBITS) * 8) - 1);
uint32 hs = sizeof(HUFFBITS) * 8;
unsigned char ValTab0[1][2] = {
{0,0} // dummy
};
unsigned char ValTab1[7][2] = {
{2,1},{0,0},{2,1},{0,16},{2,1},{0,1},{0,17},
};
unsigned char ValTab2[17][2] = {
{2,1},{0,0},{4,1},{2,1},{0,16},{0,1},{2,1},{0,17},{4,1},{2,1},
{0,32},{0,33},{2,1},{0,18},{2,1},{0,2},{0,34},
};
unsigned char ValTab3[17][2] = {
{4,1},{2,1},{0,0},{0,1},{2,1},{0,17},{2,1},{0,16},{4,1},{2,1},
{0,32},{0,33},{2,1},{0,18},{2,1},{0,2},{0,34},
};
unsigned char ValTab4[1][2] = {{0,0}}; // dummy
unsigned char ValTab5[31][2] = {
{2,1},{0,0},{4,1},{2,1},{0,16},{0,1},{2,1},{0,17},{8,1},{4,1},
{2,1},{0,32},{0,2},{2,1},{0,33},{0,18},{8,1},{4,1},{2,1},{0,34},
{0,48},{2,1},{0,3},{0,19},{2,1},{0,49},{2,1},{0,50},{2,1},{0,35},
{0,51},
};
unsigned char ValTab6[31][2] = {
{6,1},{4,1},{2,1},{0,0},{0,16},{0,17},{6,1},{2,1},{0,1},{2,1},
{0,32},{0,33},{6,1},{2,1},{0,18},{2,1},{0,2},{0,34},{4,1},{2,1},
{0,49},{0,19},{4,1},{2,1},{0,48},{0,50},{2,1},{0,35},{2,1},{0,3},
{0,51},
};
unsigned char ValTab7[71][2] = {
{2,1},{0,0},{4,1},{2,1},{0,16},{0,1},{8,1},{2,1},{0,17},{4,1},
{2,1},{0,32},{0,2},{0,33},{18,1},{6,1},{2,1},{0,18},{2,1},{0,34},
{0,48},{4,1},{2,1},{0,49},{0,19},{4,1},{2,1},{0,3},{0,50},{2,1},
{0,35},{0,4},{10,1},{4,1},{2,1},{0,64},{0,65},{2,1},{0,20},{2,1},
{0,66},{0,36},{12,1},{6,1},{4,1},{2,1},{0,51},{0,67},{0,80},{4,1},
{2,1},{0,52},{0,5},{0,81},{6,1},{2,1},{0,21},{2,1},{0,82},{0,37},
{4,1},{2,1},{0,68},{0,53},{4,1},{2,1},{0,83},{0,84},{2,1},{0,69},
{0,85},
};
unsigned char ValTab8[71][2] = {
{6,1},{2,1},{0,0},{2,1},{0,16},{0,1},{2,1},{0,17},{4,1},{2,1},
{0,33},{0,18},{14,1},{4,1},{2,1},{0,32},{0,2},{2,1},{0,34},{4,1},
{2,1},{0,48},{0,3},{2,1},{0,49},{0,19},{14,1},{8,1},{4,1},{2,1},
{0,50},{0,35},{2,1},{0,64},{0,4},{2,1},{0,65},{2,1},{0,20},{0,66},
{12,1},{6,1},{2,1},{0,36},{2,1},{0,51},{0,80},{4,1},{2,1},{0,67},
{0,52},{0,81},{6,1},{2,1},{0,21},{2,1},{0,5},{0,82},{6,1},{2,1},
{0,37},{2,1},{0,68},{0,53},{2,1},{0,83},{2,1},{0,69},{2,1},{0,84},
{0,85},
};
unsigned char ValTab9[71][2] = {
{8,1},{4,1},{2,1},{0,0},{0,16},{2,1},{0,1},{0,17},{10,1},{4,1},
{2,1},{0,32},{0,33},{2,1},{0,18},{2,1},{0,2},{0,34},{12,1},{6,1},
{4,1},{2,1},{0,48},{0,3},{0,49},{2,1},{0,19},{2,1},{0,50},{0,35},
{12,1},{4,1},{2,1},{0,65},{0,20},{4,1},{2,1},{0,64},{0,51},{2,1},
{0,66},{0,36},{10,1},{6,1},{4,1},{2,1},{0,4},{0,80},{0,67},{2,1},
{0,52},{0,81},{8,1},{4,1},{2,1},{0,21},{0,82},{2,1},{0,37},{0,68},
{6,1},{4,1},{2,1},{0,5},{0,84},{0,83},{2,1},{0,53},{2,1},{0,69},
{0,85},
};
unsigned char ValTab10[127][2] = {
{2,1},{0,0},{4,1},{2,1},{0,16},{0,1},{10,1},{2,1},{0,17},{4,1},
{2,1},{0,32},{0,2},{2,1},{0,33},{0,18},{28,1},{8,1},{4,1},{2,1},
{0,34},{0,48},{2,1},{0,49},{0,19},{8,1},{4,1},{2,1},{0,3},{0,50},
{2,1},{0,35},{0,64},{4,1},{2,1},{0,65},{0,20},{4,1},{2,1},{0,4},
{0,51},{2,1},{0,66},{0,36},{28,1},{10,1},{6,1},{4,1},{2,1},{0,80},
{0,5},{0,96},{2,1},{0,97},{0,22},{12,1},{6,1},{4,1},{2,1},{0,67},
{0,52},{0,81},{2,1},{0,21},{2,1},{0,82},{0,37},{4,1},{2,1},{0,38},
{0,54},{0,113},{20,1},{8,1},{2,1},{0,23},{4,1},{2,1},{0,68},{0,83},
{0,6},{6,1},{4,1},{2,1},{0,53},{0,69},{0,98},{2,1},{0,112},{2,1},
{0,7},{0,100},{14,1},{4,1},{2,1},{0,114},{0,39},{6,1},{2,1},{0,99},
{2,1},{0,84},{0,85},{2,1},{0,70},{0,115},{8,1},{4,1},{2,1},{0,55},
{0,101},{2,1},{0,86},{0,116},{6,1},{2,1},{0,71},{2,1},{0,102},{0,117},
{4,1},{2,1},{0,87},{0,118},{2,1},{0,103},{0,119},
};
unsigned char ValTab11[127][2] = {
{6,1},{2,1},{0,0},{2,1},{0,16},{0,1},{8,1},{2,1},{0,17},{4,1},
{2,1},{0,32},{0,2},{0,18},{24,1},{8,1},{2,1},{0,33},{2,1},{0,34},
{2,1},{0,48},{0,3},{4,1},{2,1},{0,49},{0,19},{4,1},{2,1},{0,50},
{0,35},{4,1},{2,1},{0,64},{0,4},{2,1},{0,65},{0,20},{30,1},{16,1},
{10,1},{4,1},{2,1},{0,66},{0,36},{4,1},{2,1},{0,51},{0,67},{0,80},
{4,1},{2,1},{0,52},{0,81},{0,97},{6,1},{2,1},{0,22},{2,1},{0,6},
{0,38},{2,1},{0,98},{2,1},{0,21},{2,1},{0,5},{0,82},{16,1},{10,1},
{6,1},{4,1},{2,1},{0,37},{0,68},{0,96},{2,1},{0,99},{0,54},{4,1},
{2,1},{0,112},{0,23},{0,113},{16,1},{6,1},{4,1},{2,1},{0,7},{0,100},
{0,114},{2,1},{0,39},{4,1},{2,1},{0,83},{0,53},{2,1},{0,84},{0,69},
{10,1},{4,1},{2,1},{0,70},{0,115},{2,1},{0,55},{2,1},{0,101},{0,86},
{10,1},{6,1},{4,1},{2,1},{0,85},{0,87},{0,116},{2,1},{0,71},{0,102},
{4,1},{2,1},{0,117},{0,118},{2,1},{0,103},{0,119},
};
unsigned char ValTab12[127][2] = {
{12,1},{4,1},{2,1},{0,16},{0,1},{2,1},{0,17},{2,1},{0,0},{2,1},
{0,32},{0,2},{16,1},{4,1},{2,1},{0,33},{0,18},{4,1},{2,1},{0,34},
{0,49},{2,1},{0,19},{2,1},{0,48},{2,1},{0,3},{0,64},{26,1},{8,1},
{4,1},{2,1},{0,50},{0,35},{2,1},{0,65},{0,51},{10,1},{4,1},{2,1},
{0,20},{0,66},{2,1},{0,36},{2,1},{0,4},{0,80},{4,1},{2,1},{0,67},
{0,52},{2,1},{0,81},{0,21},{28,1},{14,1},{8,1},{4,1},{2,1},{0,82},
{0,37},{2,1},{0,83},{0,53},{4,1},{2,1},{0,96},{0,22},{0,97},{4,1},
{2,1},{0,98},{0,38},{6,1},{4,1},{2,1},{0,5},{0,6},{0,68},{2,1},
{0,84},{0,69},{18,1},{10,1},{4,1},{2,1},{0,99},{0,54},{4,1},{2,1},
{0,112},{0,7},{0,113},{4,1},{2,1},{0,23},{0,100},{2,1},{0,70},{0,114},
{10,1},{6,1},{2,1},{0,39},{2,1},{0,85},{0,115},{2,1},{0,55},{0,86},
{8,1},{4,1},{2,1},{0,101},{0,116},{2,1},{0,71},{0,102},{4,1},{2,1},
{0,117},{0,87},{2,1},{0,118},{2,1},{0,103},{0,119},
};
unsigned char ValTab13[511][2] = {
{2,1},{0,0},{6,1},{2,1},{0,16},{2,1},{0,1},{0,17},{28,1},{8,1},
{4,1},{2,1},{0,32},{0,2},{2,1},{0,33},{0,18},{8,1},{4,1},{2,1},
{0,34},{0,48},{2,1},{0,3},{0,49},{6,1},{2,1},{0,19},{2,1},{0,50},
{0,35},{4,1},{2,1},{0,64},{0,4},{0,65},{70,1},{28,1},{14,1},{6,1},
{2,1},{0,20},{2,1},{0,51},{0,66},{4,1},{2,1},{0,36},{0,80},{2,1},
{0,67},{0,52},{4,1},{2,1},{0,81},{0,21},{4,1},{2,1},{0,5},{0,82},
{2,1},{0,37},{2,1},{0,68},{0,83},{14,1},{8,1},{4,1},{2,1},{0,96},
{0,6},{2,1},{0,97},{0,22},{4,1},{2,1},{0,128},{0,8},{0,129},{16,1},
{8,1},{4,1},{2,1},{0,53},{0,98},{2,1},{0,38},{0,84},{4,1},{2,1},
{0,69},{0,99},{2,1},{0,54},{0,112},{6,1},{4,1},{2,1},{0,7},{0,85},
{0,113},{2,1},{0,23},{2,1},{0,39},{0,55},{72,1},{24,1},{12,1},{4,1},
{2,1},{0,24},{0,130},{2,1},{0,40},{4,1},{2,1},{0,100},{0,70},{0,114},
{8,1},{4,1},{2,1},{0,132},{0,72},{2,1},{0,144},{0,9},{2,1},{0,145},
{0,25},{24,1},{14,1},{8,1},{4,1},{2,1},{0,115},{0,101},{2,1},{0,86},
{0,116},{4,1},{2,1},{0,71},{0,102},{0,131},{6,1},{2,1},{0,56},{2,1},
{0,117},{0,87},{2,1},{0,146},{0,41},{14,1},{8,1},{4,1},{2,1},{0,103},
{0,133},{2,1},{0,88},{0,57},{2,1},{0,147},{2,1},{0,73},{0,134},{6,1},
{2,1},{0,160},{2,1},{0,104},{0,10},{2,1},{0,161},{0,26},{68,1},{24,1},
{12,1},{4,1},{2,1},{0,162},{0,42},{4,1},{2,1},{0,149},{0,89},{2,1},
{0,163},{0,58},{8,1},{4,1},{2,1},{0,74},{0,150},{2,1},{0,176},{0,11},
{2,1},{0,177},{0,27},{20,1},{8,1},{2,1},{0,178},{4,1},{2,1},{0,118},
{0,119},{0,148},{6,1},{4,1},{2,1},{0,135},{0,120},{0,164},{4,1},{2,1},
{0,105},{0,165},{0,43},{12,1},{6,1},{4,1},{2,1},{0,90},{0,136},{0,179},
{2,1},{0,59},{2,1},{0,121},{0,166},{6,1},{4,1},{2,1},{0,106},{0,180},
{0,192},{4,1},{2,1},{0,12},{0,152},{0,193},{60,1},{22,1},{10,1},{6,1},
{2,1},{0,28},{2,1},{0,137},{0,181},{2,1},{0,91},{0,194},{4,1},{2,1},
{0,44},{0,60},{4,1},{2,1},{0,182},{0,107},{2,1},{0,196},{0,76},{16,1},
{8,1},{4,1},{2,1},{0,168},{0,138},{2,1},{0,208},{0,13},{2,1},{0,209},
{2,1},{0,75},{2,1},{0,151},{0,167},{12,1},{6,1},{2,1},{0,195},{2,1},
{0,122},{0,153},{4,1},{2,1},{0,197},{0,92},{0,183},{4,1},{2,1},{0,29},
{0,210},{2,1},{0,45},{2,1},{0,123},{0,211},{52,1},{28,1},{12,1},{4,1},
{2,1},{0,61},{0,198},{4,1},{2,1},{0,108},{0,169},{2,1},{0,154},{0,212},
{8,1},{4,1},{2,1},{0,184},{0,139},{2,1},{0,77},{0,199},{4,1},{2,1},
{0,124},{0,213},{2,1},{0,93},{0,224},{10,1},{4,1},{2,1},{0,225},{0,30},
{4,1},{2,1},{0,14},{0,46},{0,226},{8,1},{4,1},{2,1},{0,227},{0,109},
{2,1},{0,140},{0,228},{4,1},{2,1},{0,229},{0,186},{0,240},{38,1},{16,1},
{4,1},{2,1},{0,241},{0,31},{6,1},{4,1},{2,1},{0,170},{0,155},{0,185},
{2,1},{0,62},{2,1},{0,214},{0,200},{12,1},{6,1},{2,1},{0,78},{2,1},
{0,215},{0,125},{2,1},{0,171},{2,1},{0,94},{0,201},{6,1},{2,1},{0,15},
{2,1},{0,156},{0,110},{2,1},{0,242},{0,47},{32,1},{16,1},{6,1},{4,1},
{2,1},{0,216},{0,141},{0,63},{6,1},{2,1},{0,243},{2,1},{0,230},{0,202},
{2,1},{0,244},{0,79},{8,1},{4,1},{2,1},{0,187},{0,172},{2,1},{0,231},
{0,245},{4,1},{2,1},{0,217},{0,157},{2,1},{0,95},{0,232},{30,1},{12,1},
{6,1},{2,1},{0,111},{2,1},{0,246},{0,203},{4,1},{2,1},{0,188},{0,173},
{0,218},{8,1},{2,1},{0,247},{4,1},{2,1},{0,126},{0,127},{0,142},{6,1},
{4,1},{2,1},{0,158},{0,174},{0,204},{2,1},{0,248},{0,143},{18,1},{8,1},
{4,1},{2,1},{0,219},{0,189},{2,1},{0,234},{0,249},{4,1},{2,1},{0,159},
{0,235},{2,1},{0,190},{2,1},{0,205},{0,250},{14,1},{4,1},{2,1},{0,221},
{0,236},{6,1},{4,1},{2,1},{0,233},{0,175},{0,220},{2,1},{0,206},{0,251},
{8,1},{4,1},{2,1},{0,191},{0,222},{2,1},{0,207},{0,238},{4,1},{2,1},
{0,223},{0,239},{2,1},{0,255},{2,1},{0,237},{2,1},{0,253},{2,1},{0,252},
{0,254},
};
unsigned char ValTab14[1][2] = {
{0,0} // dummy
};
unsigned char ValTab15[511][2] = {
{16,1},{6,1},{2,1},{0,0},{2,1},{0,16},{0,1},{2,1},{0,17},{4,1},
{2,1},{0,32},{0,2},{2,1},{0,33},{0,18},{50,1},{16,1},{6,1},{2,1},
{0,34},{2,1},{0,48},{0,49},{6,1},{2,1},{0,19},{2,1},{0,3},{0,64},
{2,1},{0,50},{0,35},{14,1},{6,1},{4,1},{2,1},{0,4},{0,20},{0,65},
{4,1},{2,1},{0,51},{0,66},{2,1},{0,36},{0,67},{10,1},{6,1},{2,1},
{0,52},{2,1},{0,80},{0,5},{2,1},{0,81},{0,21},{4,1},{2,1},{0,82},
{0,37},{4,1},{2,1},{0,68},{0,83},{0,97},{90,1},{36,1},{18,1},{10,1},
{6,1},{2,1},{0,53},{2,1},{0,96},{0,6},{2,1},{0,22},{0,98},{4,1},
{2,1},{0,38},{0,84},{2,1},{0,69},{0,99},{10,1},{6,1},{2,1},{0,54},
{2,1},{0,112},{0,7},{2,1},{0,113},{0,85},{4,1},{2,1},{0,23},{0,100},
{2,1},{0,114},{0,39},{24,1},{16,1},{8,1},{4,1},{2,1},{0,70},{0,115},
{2,1},{0,55},{0,101},{4,1},{2,1},{0,86},{0,128},{2,1},{0,8},{0,116},
{4,1},{2,1},{0,129},{0,24},{2,1},{0,130},{0,40},{16,1},{8,1},{4,1},
{2,1},{0,71},{0,102},{2,1},{0,131},{0,56},{4,1},{2,1},{0,117},{0,87},
{2,1},{0,132},{0,72},{6,1},{4,1},{2,1},{0,144},{0,25},{0,145},{4,1},
{2,1},{0,146},{0,118},{2,1},{0,103},{0,41},{92,1},{36,1},{18,1},{10,1},
{4,1},{2,1},{0,133},{0,88},{4,1},{2,1},{0,9},{0,119},{0,147},{4,1},
{2,1},{0,57},{0,148},{2,1},{0,73},{0,134},{10,1},{6,1},{2,1},{0,104},
{2,1},{0,160},{0,10},{2,1},{0,161},{0,26},{4,1},{2,1},{0,162},{0,42},
{2,1},{0,149},{0,89},{26,1},{14,1},{6,1},{2,1},{0,163},{2,1},{0,58},
{0,135},{4,1},{2,1},{0,120},{0,164},{2,1},{0,74},{0,150},{6,1},{4,1},
{2,1},{0,105},{0,176},{0,177},{4,1},{2,1},{0,27},{0,165},{0,178},{14,1},
{8,1},{4,1},{2,1},{0,90},{0,43},{2,1},{0,136},{0,151},{2,1},{0,179},
{2,1},{0,121},{0,59},{8,1},{4,1},{2,1},{0,106},{0,180},{2,1},{0,75},
{0,193},{4,1},{2,1},{0,152},{0,137},{2,1},{0,28},{0,181},{80,1},{34,1},
{16,1},{6,1},{4,1},{2,1},{0,91},{0,44},{0,194},{6,1},{4,1},{2,1},
{0,11},{0,192},{0,166},{2,1},{0,167},{0,122},{10,1},{4,1},{2,1},{0,195},
{0,60},{4,1},{2,1},{0,12},{0,153},{0,182},{4,1},{2,1},{0,107},{0,196},
{2,1},{0,76},{0,168},{20,1},{10,1},{4,1},{2,1},{0,138},{0,197},{4,1},
{2,1},{0,208},{0,92},{0,209},{4,1},{2,1},{0,183},{0,123},{2,1},{0,29},
{2,1},{0,13},{0,45},{12,1},{4,1},{2,1},{0,210},{0,211},{4,1},{2,1},
{0,61},{0,198},{2,1},{0,108},{0,169},{6,1},{4,1},{2,1},{0,154},{0,184},
{0,212},{4,1},{2,1},{0,139},{0,77},{2,1},{0,199},{0,124},{68,1},{34,1},
{18,1},{10,1},{4,1},{2,1},{0,213},{0,93},{4,1},{2,1},{0,224},{0,14},
{0,225},{4,1},{2,1},{0,30},{0,226},{2,1},{0,170},{0,46},{8,1},{4,1},
{2,1},{0,185},{0,155},{2,1},{0,227},{0,214},{4,1},{2,1},{0,109},{0,62},
{2,1},{0,200},{0,140},{16,1},{8,1},{4,1},{2,1},{0,228},{0,78},{2,1},
{0,215},{0,125},{4,1},{2,1},{0,229},{0,186},{2,1},{0,171},{0,94},{8,1},
{4,1},{2,1},{0,201},{0,156},{2,1},{0,241},{0,31},{6,1},{4,1},{2,1},
{0,240},{0,110},{0,242},{2,1},{0,47},{0,230},{38,1},{18,1},{8,1},{4,1},
{2,1},{0,216},{0,243},{2,1},{0,63},{0,244},{6,1},{2,1},{0,79},{2,1},
{0,141},{0,217},{2,1},{0,187},{0,202},{8,1},{4,1},{2,1},{0,172},{0,231},
{2,1},{0,126},{0,245},{8,1},{4,1},{2,1},{0,157},{0,95},{2,1},{0,232},
{0,142},{2,1},{0,246},{0,203},{34,1},{18,1},{10,1},{6,1},{4,1},{2,1},
{0,15},{0,174},{0,111},{2,1},{0,188},{0,218},{4,1},{2,1},{0,173},{0,247},
{2,1},{0,127},{0,233},{8,1},{4,1},{2,1},{0,158},{0,204},{2,1},{0,248},
{0,143},{4,1},{2,1},{0,219},{0,189},{2,1},{0,234},{0,249},{16,1},{8,1},
{4,1},{2,1},{0,159},{0,220},{2,1},{0,205},{0,235},{4,1},{2,1},{0,190},
{0,250},{2,1},{0,175},{0,221},{14,1},{6,1},{4,1},{2,1},{0,236},{0,206},
{0,251},{4,1},{2,1},{0,191},{0,237},{2,1},{0,222},{0,252},{6,1},{4,1},
{2,1},{0,207},{0,253},{0,238},{4,1},{2,1},{0,223},{0,254},{2,1},{0,239},
{0,255},
};
unsigned char ValTab16[511][2] = {
{2,1},{0,0},{6,1},{2,1},{0,16},{2,1},{0,1},{0,17},{42,1},{8,1},
{4,1},{2,1},{0,32},{0,2},{2,1},{0,33},{0,18},{10,1},{6,1},{2,1},
{0,34},{2,1},{0,48},{0,3},{2,1},{0,49},{0,19},{10,1},{4,1},{2,1},
{0,50},{0,35},{4,1},{2,1},{0,64},{0,4},{0,65},{6,1},{2,1},{0,20},
{2,1},{0,51},{0,66},{4,1},{2,1},{0,36},{0,80},{2,1},{0,67},{0,52},
{138,1},{40,1},{16,1},{6,1},{4,1},{2,1},{0,5},{0,21},{0,81},{4,1},
{2,1},{0,82},{0,37},{4,1},{2,1},{0,68},{0,53},{0,83},{10,1},{6,1},
{4,1},{2,1},{0,96},{0,6},{0,97},{2,1},{0,22},{0,98},{8,1},{4,1},
{2,1},{0,38},{0,84},{2,1},{0,69},{0,99},{4,1},{2,1},{0,54},{0,112},
{0,113},{40,1},{18,1},{8,1},{2,1},{0,23},{2,1},{0,7},{2,1},{0,85},
{0,100},{4,1},{2,1},{0,114},{0,39},{4,1},{2,1},{0,70},{0,101},{0,115},
{10,1},{6,1},{2,1},{0,55},{2,1},{0,86},{0,8},{2,1},{0,128},{0,129},
{6,1},{2,1},{0,24},{2,1},{0,116},{0,71},{2,1},{0,130},{2,1},{0,40},
{0,102},{24,1},{14,1},{8,1},{4,1},{2,1},{0,131},{0,56},{2,1},{0,117},
{0,132},{4,1},{2,1},{0,72},{0,144},{0,145},{6,1},{2,1},{0,25},{2,1},
{0,9},{0,118},{2,1},{0,146},{0,41},{14,1},{8,1},{4,1},{2,1},{0,133},
{0,88},{2,1},{0,147},{0,57},{4,1},{2,1},{0,160},{0,10},{0,26},{8,1},
{2,1},{0,162},{2,1},{0,103},{2,1},{0,87},{0,73},{6,1},{2,1},{0,148},
{2,1},{0,119},{0,134},{2,1},{0,161},{2,1},{0,104},{0,149},{220,1},{126,1},
{50,1},{26,1},{12,1},{6,1},{2,1},{0,42},{2,1},{0,89},{0,58},{2,1},
{0,163},{2,1},{0,135},{0,120},{8,1},{4,1},{2,1},{0,164},{0,74},{2,1},
{0,150},{0,105},{4,1},{2,1},{0,176},{0,11},{0,177},{10,1},{4,1},{2,1},
{0,27},{0,178},{2,1},{0,43},{2,1},{0,165},{0,90},{6,1},{2,1},{0,179},
{2,1},{0,166},{0,106},{4,1},{2,1},{0,180},{0,75},{2,1},{0,12},{0,193},
{30,1},{14,1},{6,1},{4,1},{2,1},{0,181},{0,194},{0,44},{4,1},{2,1},
{0,167},{0,195},{2,1},{0,107},{0,196},{8,1},{2,1},{0,29},{4,1},{2,1},
{0,136},{0,151},{0,59},{4,1},{2,1},{0,209},{0,210},{2,1},{0,45},{0,211},
{18,1},{6,1},{4,1},{2,1},{0,30},{0,46},{0,226},{6,1},{4,1},{2,1},
{0,121},{0,152},{0,192},{2,1},{0,28},{2,1},{0,137},{0,91},{14,1},{6,1},
{2,1},{0,60},{2,1},{0,122},{0,182},{4,1},{2,1},{0,76},{0,153},{2,1},
{0,168},{0,138},{6,1},{2,1},{0,13},{2,1},{0,197},{0,92},{4,1},{2,1},
{0,61},{0,198},{2,1},{0,108},{0,154},{88,1},{86,1},{36,1},{16,1},{8,1},
{4,1},{2,1},{0,139},{0,77},{2,1},{0,199},{0,124},{4,1},{2,1},{0,213},
{0,93},{2,1},{0,224},{0,14},{8,1},{2,1},{0,227},{4,1},{2,1},{0,208},
{0,183},{0,123},{6,1},{4,1},{2,1},{0,169},{0,184},{0,212},{2,1},{0,225},
{2,1},{0,170},{0,185},{24,1},{10,1},{6,1},{4,1},{2,1},{0,155},{0,214},
{0,109},{2,1},{0,62},{0,200},{6,1},{4,1},{2,1},{0,140},{0,228},{0,78},
{4,1},{2,1},{0,215},{0,229},{2,1},{0,186},{0,171},{12,1},{4,1},{2,1},
{0,156},{0,230},{4,1},{2,1},{0,110},{0,216},{2,1},{0,141},{0,187},{8,1},
{4,1},{2,1},{0,231},{0,157},{2,1},{0,232},{0,142},{4,1},{2,1},{0,203},
{0,188},{0,158},{0,241},{2,1},{0,31},{2,1},{0,15},{0,47},{66,1},{56,1},
{2,1},{0,242},{52,1},{50,1},{20,1},{8,1},{2,1},{0,189},{2,1},{0,94},
{2,1},{0,125},{0,201},{6,1},{2,1},{0,202},{2,1},{0,172},{0,126},{4,1},
{2,1},{0,218},{0,173},{0,204},{10,1},{6,1},{2,1},{0,174},{2,1},{0,219},
{0,220},{2,1},{0,205},{0,190},{6,1},{4,1},{2,1},{0,235},{0,237},{0,238},
{6,1},{4,1},{2,1},{0,217},{0,234},{0,233},{2,1},{0,222},{4,1},{2,1},
{0,221},{0,236},{0,206},{0,63},{0,240},{4,1},{2,1},{0,243},{0,244},{2,1},
{0,79},{2,1},{0,245},{0,95},{10,1},{2,1},{0,255},{4,1},{2,1},{0,246},
{0,111},{2,1},{0,247},{0,127},{12,1},{6,1},{2,1},{0,143},{2,1},{0,248},
{0,249},{4,1},{2,1},{0,159},{0,250},{0,175},{8,1},{4,1},{2,1},{0,251},
{0,191},{2,1},{0,252},{0,207},{4,1},{2,1},{0,253},{0,223},{2,1},{0,254},
{0,239},
};
unsigned char ValTab24[512][2] = {
{60,1},{8,1},{4,1},{2,1},{0,0},{0,16},{2,1},{0,1},{0,17},{14,1},
{6,1},{4,1},{2,1},{0,32},{0,2},{0,33},{2,1},{0,18},{2,1},{0,34},
{2,1},{0,48},{0,3},{14,1},{4,1},{2,1},{0,49},{0,19},{4,1},{2,1},
{0,50},{0,35},{4,1},{2,1},{0,64},{0,4},{0,65},{8,1},{4,1},{2,1},
{0,20},{0,51},{2,1},{0,66},{0,36},{6,1},{4,1},{2,1},{0,67},{0,52},
{0,81},{6,1},{4,1},{2,1},{0,80},{0,5},{0,21},{2,1},{0,82},{0,37},
{250,1},{98,1},{34,1},{18,1},{10,1},{4,1},{2,1},{0,68},{0,83},{2,1},
{0,53},{2,1},{0,96},{0,6},{4,1},{2,1},{0,97},{0,22},{2,1},{0,98},
{0,38},{8,1},{4,1},{2,1},{0,84},{0,69},{2,1},{0,99},{0,54},{4,1},
{2,1},{0,113},{0,85},{2,1},{0,100},{0,70},{32,1},{14,1},{6,1},{2,1},
{0,114},{2,1},{0,39},{0,55},{2,1},{0,115},{4,1},{2,1},{0,112},{0,7},
{0,23},{10,1},{4,1},{2,1},{0,101},{0,86},{4,1},{2,1},{0,128},{0,8},
{0,129},{4,1},{2,1},{0,116},{0,71},{2,1},{0,24},{0,130},{16,1},{8,1},
{4,1},{2,1},{0,40},{0,102},{2,1},{0,131},{0,56},{4,1},{2,1},{0,117},
{0,87},{2,1},{0,132},{0,72},{8,1},{4,1},{2,1},{0,145},{0,25},{2,1},
{0,146},{0,118},{4,1},{2,1},{0,103},{0,41},{2,1},{0,133},{0,88},{92,1},
{34,1},{16,1},{8,1},{4,1},{2,1},{0,147},{0,57},{2,1},{0,148},{0,73},
{4,1},{2,1},{0,119},{0,134},{2,1},{0,104},{0,161},{8,1},{4,1},{2,1},
{0,162},{0,42},{2,1},{0,149},{0,89},{4,1},{2,1},{0,163},{0,58},{2,1},
{0,135},{2,1},{0,120},{0,74},{22,1},{12,1},{4,1},{2,1},{0,164},{0,150},
{4,1},{2,1},{0,105},{0,177},{2,1},{0,27},{0,165},{6,1},{2,1},{0,178},
{2,1},{0,90},{0,43},{2,1},{0,136},{0,179},{16,1},{10,1},{6,1},{2,1},
{0,144},{2,1},{0,9},{0,160},{2,1},{0,151},{0,121},{4,1},{2,1},{0,166},
{0,106},{0,180},{12,1},{6,1},{2,1},{0,26},{2,1},{0,10},{0,176},{2,1},
{0,59},{2,1},{0,11},{0,192},{4,1},{2,1},{0,75},{0,193},{2,1},{0,152},
{0,137},{67,1},{34,1},{16,1},{8,1},{4,1},{2,1},{0,28},{0,181},{2,1},
{0,91},{0,194},{4,1},{2,1},{0,44},{0,167},{2,1},{0,122},{0,195},{10,1},
{6,1},{2,1},{0,60},{2,1},{0,12},{0,208},{2,1},{0,182},{0,107},{4,1},
{2,1},{0,196},{0,76},{2,1},{0,153},{0,168},{16,1},{8,1},{4,1},{2,1},
{0,138},{0,197},{2,1},{0,92},{0,209},{4,1},{2,1},{0,183},{0,123},{2,1},
{0,29},{0,210},{9,1},{4,1},{2,1},{0,45},{0,211},{2,1},{0,61},{0,198},
{85,250},{4,1},{2,1},{0,108},{0,169},{2,1},{0,154},{0,212},{32,1},{16,1},
{8,1},{4,1},{2,1},{0,184},{0,139},{2,1},{0,77},{0,199},{4,1},{2,1},
{0,124},{0,213},{2,1},{0,93},{0,225},{8,1},{4,1},{2,1},{0,30},{0,226},
{2,1},{0,170},{0,185},{4,1},{2,1},{0,155},{0,227},{2,1},{0,214},{0,109},
{20,1},{10,1},{6,1},{2,1},{0,62},{2,1},{0,46},{0,78},{2,1},{0,200},
{0,140},{4,1},{2,1},{0,228},{0,215},{4,1},{2,1},{0,125},{0,171},{0,229},
{10,1},{4,1},{2,1},{0,186},{0,94},{2,1},{0,201},{2,1},{0,156},{0,110},
{8,1},{2,1},{0,230},{2,1},{0,13},{2,1},{0,224},{0,14},{4,1},{2,1},
{0,216},{0,141},{2,1},{0,187},{0,202},{74,1},{2,1},{0,255},{64,1},{58,1},
{32,1},{16,1},{8,1},{4,1},{2,1},{0,172},{0,231},{2,1},{0,126},{0,217},
{4,1},{2,1},{0,157},{0,232},{2,1},{0,142},{0,203},{8,1},{4,1},{2,1},
{0,188},{0,218},{2,1},{0,173},{0,233},{4,1},{2,1},{0,158},{0,204},{2,1},
{0,219},{0,189},{16,1},{8,1},{4,1},{2,1},{0,234},{0,174},{2,1},{0,220},
{0,205},{4,1},{2,1},{0,235},{0,190},{2,1},{0,221},{0,236},{8,1},{4,1},
{2,1},{0,206},{0,237},{2,1},{0,222},{0,238},{0,15},{4,1},{2,1},{0,240},
{0,31},{0,241},{4,1},{2,1},{0,242},{0,47},{2,1},{0,243},{0,63},{18,1},
{8,1},{4,1},{2,1},{0,244},{0,79},{2,1},{0,245},{0,95},{4,1},{2,1},
{0,246},{0,111},{2,1},{0,247},{2,1},{0,127},{0,143},{10,1},{4,1},{2,1},
{0,248},{0,249},{4,1},{2,1},{0,159},{0,175},{0,250},{8,1},{4,1},{2,1},
{0,251},{0,191},{2,1},{0,252},{0,207},{4,1},{2,1},{0,253},{0,223},{2,1},
{0,254},{0,239},
};
unsigned char ValTab32[31][2] = {
{2,1},{0,0},{8,1},{4,1},{2,1},{0,8},{0,4},{2,1},{0,1},{0,2},
{8,1},{4,1},{2,1},{0,12},{0,10},{2,1},{0,3},{0,6},{6,1},{2,1},
{0,9},{2,1},{0,5},{0,7},{4,1},{2,1},{0,14},{0,13},{2,1},{0,15},
{0,11},
};
unsigned char ValTab33[31][2] = {
{16,1},{8,1},{4,1},{2,1},{0,0},{0,1},{2,1},{0,2},{0,3},{4,1},
{2,1},{0,4},{0,5},{2,1},{0,6},{0,7},{8,1},{4,1},{2,1},{0,8},
{0,9},{2,1},{0,10},{0,11},{4,1},{2,1},{0,12},{0,13},{2,1},{0,14},
{0,15},
};
// array of all huffcodtable headers
// 0..31 Huffman code table 0..31
// 32,33 count1-tables
extern struct huffcodetab ht[HTN] = {
{"0",0,0,0,0,-1,NULL,NULL,ValTab0,0},
{"1",2,2,0,0,-1,NULL,NULL,ValTab1,7},
{"2",3,3,0,0,-1,NULL,NULL,ValTab2,17},
{"3",3,3,0,0,-1,NULL,NULL,ValTab3,17},
{"4",0,0,0,0,-1,NULL,NULL,ValTab4,0},
{"5",4,4,0,0,-1,NULL,NULL,ValTab5,31},
{"6",4,4,0,0,-1,NULL,NULL,ValTab6,31},
{"7",6,6,0,0,-1,NULL,NULL,ValTab7,71},
{"8",6,6,0,0,-1,NULL,NULL,ValTab8,71},
{"9",6,6,0,0,-1,NULL,NULL,ValTab9,71},
{"10",8,8,0,0,-1,NULL,NULL,ValTab10,127},
{"11",8,8,0,0,-1,NULL,NULL,ValTab11,127},
{"12",8,8,0,0,-1,NULL,NULL,ValTab12,127},
{"13",16,16,0,0,-1,NULL,NULL,ValTab13,511},
{"14",0,0,0,0,-1,NULL,NULL,ValTab14,0},
{"15",16,16,0,0,-1,NULL,NULL,ValTab15,511},
{"16",16,16,1,1,-1,NULL,NULL,ValTab16,511},
{"17",16,16,2,3,16,NULL,NULL,ValTab16,511},
{"18",16,16,3,7,16,NULL,NULL,ValTab16,511},
{"19",16,16,4,15,16,NULL,NULL,ValTab16,511},
{"20",16,16,6,63,16,NULL,NULL,ValTab16,511},
{"21",16,16,8,255,16,NULL,NULL,ValTab16,511},
{"22",16,16,10,1023,16,NULL,NULL,ValTab16,511},
{"23",16,16,13,8191,16,NULL,NULL,ValTab16,511},
{"24",16,16,4,15,-1,NULL,NULL,ValTab24,512},
{"25",16,16,5,31,24,NULL,NULL,ValTab24,512},
{"26",16,16,6,63,24,NULL,NULL,ValTab24,512},
{"27",16,16,7,127,24,NULL,NULL,ValTab24,512},
{"28",16,16,8,255,24,NULL,NULL,ValTab24,512},
{"29",16,16,9,511,24,NULL,NULL,ValTab24,512},
{"30",16,16,11,2047,24,NULL,NULL,ValTab24,512},
{"31",16,16,13,8191,24,NULL,NULL,ValTab24,512},
{"32",1,16,0,0,-1,NULL,NULL,ValTab32,31},
{"33",1,16,0,0,-1,NULL,NULL,ValTab33,31},
};
// do the huffman-decoding
// note! for counta,countb -the 4 bit value is returned in y,
// discard x
int32 huffman_decoder(struct huffcodetab *h, int32 *x, int32 *y, int32 *v,
int32 *w, Bit_Reserve *br)
{
HUFFBITS level;
int32 point = 0;
int32 error = 1;
level = dmask;
if (h->val == NULL) return 2;
/* table 0 needs no bits */
if ( h->treelen == 0)
{ *x = *y = 0;
return 0;
}
/* Lookup in Huffman table. */
do {
if (h->val[point][0]==0) { /*end of tree*/
*x = h->val[point][1] >> 4;
*y = h->val[point][1] & 0xf;
error = 0;
break;
}
if (br->hget1bit()) {
while (h->val[point][1] >= MXOFF) point += h->val[point][1];
point += h->val[point][1];
}
else {
while (h->val[point][0] >= MXOFF) point += h->val[point][0];
point += h->val[point][0];
}
level >>= 1;
} while (level || (point < ht->treelen) );
// Check for error.
/* if (error) { // set x and y to a medium value as a simple concealment
printf("Illegal Huffman code in data.\n");
*x = (h->xlen-1 << 1);
*y = (h->ylen-1 << 1);
} */
/* Process sign encodings for quadruples tables. */
if (h->tablename[0] == '3'
&& (h->tablename[1] == '2' || h->tablename[1] == '3')) {
*v = (*y>>3) & 1;
*w = (*y>>2) & 1;
*x = (*y>>1) & 1;
*y = *y & 1;
/* v, w, x and y are reversed in the bitstream.
switch them around to make test bistream work. */
if (*v)
if (br->hget1bit()) *v = -*v;
if (*w)
if (br->hget1bit()) *w = -*w;
if (*x)
if (br->hget1bit()) *x = -*x;
if (*y)
if (br->hget1bit()) *y = -*y;
} else {
// Process sign and escape encodings for dual tables.
// x and y are reversed in the test bitstream.
// Reverse x and y here to make test bitstream work.
if (h->linbits)
if ((h->xlen-1) == *x)
*x += br->hgetbits(h->linbits);
if (*x)
if (br->hget1bit()) *x = -*x;
if (h->linbits)
if ((h->ylen-1) == *y)
*y += br->hgetbits(h->linbits);
if (*y)
if (br->hget1bit()) *y = -*y;
}
return error;
}