vld.c
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上传日期:2007-06-06
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文件大小:24k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- //#include <stdio.h>
- //#include <stdlib.h>
- //#include <string.h>
- //#include <ctype.h>
- #include "dllindex.h"
- #include "h261defs.h"
- #include "h261func.h"
- #include "vldstate.h"
- #include "vldtabs.h"
- #include "vld.h"
- #include "machine.h"
- #include "hvutils.h"
- #include "h263plus.h"
- #if defined(_WINDOWS)
- #include "hxstrutl.h"
- #endif /* _WINDOWS */
- static int buildtable( int minBits, struct vlc_entry input[], DECTABENTRY output[DECTABSIZE]);
- static int parse_bits( char vlc[], /* String with bit pattern */
- int strmax, /* Max characters in "vlc" excluding terminating null */
- int maxbits, /* Max # bits in codeword */
- int * bits, /* Returns # bits; 0 < bits < maxbits+1 */
- int * codeword, /* Returns codeword */
- int minBits // Min # bits in codeword
- );
- // Get8Bits - return next 8 bits from bitstream
- extern U8 Get8Bits( BS_PTR bs)
- {
- int k;
- k = (*bs.byteptr << 8) | *(bs.byteptr + 1);
- return (k >> (8 - bs.bitptr));
- }
- // IncBsPtr - Increment (or decrement) bitstream pointer
- extern void IncBsPtr( BS_PTR * bs, int incr)
- {
- bs->bitptr += incr;
- while (bs->bitptr > 7) {
- ++(bs->byteptr);
- bs->bitptr -= 8;
- }
- while (bs->bitptr < 0) {
- --(bs->byteptr);
- bs->bitptr += 8;
- }
- return;
- }
- // FLDecSymbol - Decode fixed length symbol of length "bits"
- // Return values: 1 OK: successful decoding; symbol returned in "value"
- // 0 OUT_OF_BITS: consumed more than "numBits"; returning numBits < 0
- extern int FLDecSymbol( BS_PTR * bs, // Bitstream pointer; incremented by this routine
- int bits, // Symbol length
- int * numBits, // Max # bits to decode; decremented by this routine
- int * value // Returns decoded symbol
- )
- {
- *value = 0;
- while (bits > 8) {
- *value |= Get8Bits( *bs ) << (bits - 8);
- bits -= 8;
- *numBits -= 8;
- ++bs->byteptr;
- }
- *value |= Get8Bits( *bs ) >> (8 - bits);
- *numBits -= bits; // Subtract parsed bits
- IncBsPtr( bs, bits); // Advance bitpointer
- //printf("FLDecSymbol: value = %2xn", *value );
- if (*numBits < 0) {
- return (OUT_OF_BITS);
- }
- return( OK );
- }
- // VLDecSymbol - Decode variable length symbol using dectable[tabNum]
- // Return values: 1 OK: successful decoding; symbol returned in sym
- // 0 OUT_OF_BITS: consumed more than "numBits"; returning numBits < 0
- // -1 ILLEGAL_SYMBOL: bitstream error
- // -2 ILLEGAL_STATE: internal program error
- // -3 FINISHED_LAST_BLOCK: reached state ST263_FINISHED (program
- // error for this routine)
- extern int VLDecSymbol( BS_PTR * bs, // Bitstream pointer; incremented by this routine
- int tabNum, // Use dectable[tabNum] for decoding
- int * numBits, // Max # bits to decode; decremented by this routine
- SYMBOL * sym // Returns decoded symbol
- )
- {
- DECTABENTRY * entry;
- /*printf( "Entered VLDecSymbol: bitstream = %2x %2x %2x %2x bitptr = %dn",
- *bs->byteptr, *(bs->byteptr + 1), *(bs->byteptr + 2),
- *(bs->byteptr + 3), bs->bitptr);*/
-
- entry = &dectable [tabNum] [Get8Bits( *bs )];
- while (entry->bits < 0) { // Long codeword; sym.value indicates table */
- *numBits += entry->bits; // Subtract parsed bits
- IncBsPtr( bs, -entry->bits); // Advance bitpointer
- //printf("VLDecSymbol - long symbol: "); printsym( entry->sym ); printf("n");
- entry = &dectable [ entry->sym.value ] [Get8Bits( *bs )];
- }
- *numBits -= entry->bits; // Subtract parsed bits
- IncBsPtr( bs, entry->bits); // Advance bitpointer
- /*{
- //int input;
- printf("VLDecSymbol: "); printsym( entry->sym ); printf("n");
- printf(" Cont? (<0 to exit): ");
- scanf("%d", &input);
- if (input < 0) exit(0);
- }*/
- if (entry->sym.type == SYM_EXIT) { // Premature exit
- if (*numBits < 0) {
- return (OUT_OF_BITS);
- } else {
- return (entry->sym.value);
- }
- }
- *sym = entry->sym;
- if (*numBits < 0) {
- return (OUT_OF_BITS);
- }
- return( OK );
- }
- // InitDecodeTable - Generate decoding tables
- extern void InitDecodeTable( void )
- {
- int minBits;
-
- minBits = 1; // Codeword strings need to be non-empty
- buildtable( minBits, dct_next, dectable[TAB_DCT_NEXT]);
- buildtable( minBits, dct_first, dectable[TAB_DCT_FIRST]);
- buildtable( minBits, dct_00100, dectable[TAB_DCT_00100]);
- buildtable( minBits, dct_000000, dectable[TAB_DCT_000000]);
- buildtable( minBits, escape_run, dectable[TAB_ESCAPE_RUN]);
- buildtable( minBits, escape_level, dectable[TAB_ESCAPE_LEVEL]);
- buildtable( minBits, intra_dc, dectable[TAB_INTRA_DC]);
- buildtable( minBits, last_intra_dc, dectable[TAB_LAST_INTRA_DC]);
- buildtable( minBits, mba_startcode, dectable[TAB_MBA_STARTCODE]);
- buildtable( minBits, long_mba, dectable[TAB_LONG_MBA]);
- buildtable( minBits, long_startcode, dectable[TAB_LONG_STARTCODE]);
- buildtable( minBits, mtype, dectable[TAB_MTYPE]);
- buildtable( minBits, long_mtype, dectable[TAB_LONG_MTYPE]);
- buildtable( minBits, mvd, dectable[TAB_MVD]);
- buildtable( minBits, long_mvd, dectable[TAB_LONG_MVD]);
- buildtable( minBits, cbp, dectable[TAB_CBP]);
- buildtable( minBits, long_cbp, dectable[TAB_LONG_CBP]);
- buildtable( minBits, quant_tr, dectable[TAB_QUANT_TR]); //Don't parse strings
- buildtable( minBits, gei_pei, dectable[TAB_GEI_PEI]);
- buildtable( minBits, long_spare, dectable[TAB_LONG_SPARE]); //Don't parse strings
- buildtable( minBits, gn, dectable[TAB_GN]);
- buildtable( minBits, ptype, dectable[TAB_PTYPE]); //Don't parse strings
- buildtable( minBits, illegal_state, dectable[TAB_ILLEGAL_STATE]);
-
- // Generate H.263 decoding tables
- buildtable( minBits, mcbpc263, dectable[TAB263_MCBPC_INTER] );
- buildtable( minBits, long_mcbpc263, dectable[TAB263_LONG_MCBPC_INTER] );
- buildtable( minBits, long_startcode263, dectable[TAB263_LONG_STARTCODE] );
- buildtable( minBits, zeros_and_start263, dectable[TAB263_ZEROS_AND_START] );
- buildtable( minBits, intra_mcbpc263, dectable[TAB263_MCBPC_INTRA] );
- buildtable( minBits, long_intra_mcbpc263, dectable[TAB263_LONG_MCBPC_INTRA] );
- buildtable( minBits, modb263, dectable[TAB263_MODB] );
- buildtable( minBits, cbpy263, dectable[TAB263_CBPY] );
- buildtable( minBits, intra_cbpy263, dectable[TAB263_CBPY_INTRA] );
- buildtable( minBits, dquant263, dectable[TAB263_DQUANT] );
- buildtable( minBits, mvd263, dectable[TAB263_MVD] );
- buildtable( minBits, long_mvd263, dectable[TAB263_LONG_MVD] );
- buildtable( minBits, tcoef, dectable[TAB263_TCOEF] );
- buildtable( minBits, tcoef_0001, dectable[TAB263_TCOEF_0001] );
- buildtable( minBits, tcoef_0000_1, dectable[TAB263_TCOEF_0000_1] );
- buildtable( minBits, tcoef_0000_0, dectable[TAB263_TCOEF_0000_0] );
- buildtable( minBits, esc263_run, dectable[TAB263_ESC_RUN] );
- buildtable( minBits, esc263_level, dectable[TAB263_ESCAPE_LEVEL] );
- buildtable( minBits, intra263_dc, dectable[TAB263_INTRA_DC] );
- #ifdef DO_H263_PLUS
- buildtable( minBits, modb263plus, dectable[TAB263PLUS_MODB] );
- buildtable( minBits, intra_mode263plus, dectable[TAB263PLUS_INTRA_MODE] );
- buildtable( minBits, tcoef_plus, dectable[TAB263PLUS_TCOEF] );
- buildtable( minBits, tcoef_0001_plus, dectable[TAB263PLUS_TCOEF_0001] );
- buildtable( minBits, tcoef_0000_1_plus, dectable[TAB263PLUS_TCOEF_0000_1] );
- buildtable( minBits, tcoef_0000_0_plus, dectable[TAB263PLUS_TCOEF_0000_0] );
- #endif
- minBits = 0; // Accept empty codeword string (length 0) to produce SYM_EXIT
- buildtable( minBits, finished_263blk, dectable[TAB263_FINISHED] );
-
- /*{
- int i, ntab;
- printf("nDiagnostic print of table #: ");
- scanf("%d", &ntab);
- while (ntab >= 0) {
- printf( "Entry Type Value Length Statechangen");
- for (i = 0; i < 256; i++) {
- printf( " %3d %3d %3d %3d %3dn", i,
- dectable[ntab][i].sym.type, dectable[ntab][i].sym.value,
- dectable[ntab][i].bits, dectable[ntab][i].statechange);
- }
- printf("nDiagnostic print of table #: ");
- scanf("%d", &ntab);
- }
-
- printf("nselectdectab:n");
- for (i = 0; i < NUMSTATES; ++i)
- {
- if (i % 10 == 0) printf("n%3d ", i);
- if (i % 10 == 5) printf(" ");
- printf("%3d", selectdectab[i] );
- }
- printf("n");
- }*/
- return;
- }
- // buildtable - Generate 8-bit (DECTABBITS) decode table;
- // Contains 256 (DECTABSIZE) entries
- static int buildtable( int minBits, struct vlc_entry input[], DECTABENTRY output[DECTABSIZE])
- {
- int i, j, bits, codeword, flc, value, status;
- char msg[120]; /* Flawfinder: ignore */
- for (i = 0; i < DECTABSIZE; i++) {
- output[i].sym.type = SYM_EXIT;
- output[i].sym.value = ILLEGAL_SYMBOL;
- }
- if (strcmpi( input[0].vlc, "FLC")) { /* VLC is default */
- flc = 0;
- //printf("Variable lengthn");
- i = 0;
- } else {
- flc = 1;
- //printf("Fixed lengthn");
- i = 1;
- }
- //printf( " Hex Type Value Statechangen");
- while (strcmpi( input[i].vlc, "End")) { /* Process until "End" */
- status = parse_bits( input[i].vlc, MAX_STRING_VLD-1, DECTABBITS,
- &bits, &codeword, minBits);
- if (status != OK) {
- sprintf( msg, "Error in parse_bits from buildtable"); /* Flawfinder: ignore */
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- codeword <<= DECTABBITS - bits;
- value = input[i].value;
- if (flc == 0) { /* Do one codeword if VLC code */
- input[i].last_value = value;
- }
- while (value <= input[i].last_value) {
- //strpad( input[i].vlc, ' ', MAX_STRING_VLD-1);
- //printf( "%3d: %s %2x %4d %4d %4d Bits = %dn",
- // i, input[i].vlc, codeword, input[i].type, value,
- // input[i].statechange, bits);
- /* Build decode table */
- for (j = codeword; j < codeword + (1 << (DECTABBITS - bits)); j++) {
- if (output[j].sym.type != SYM_EXIT ||
- output[j].sym.value != ILLEGAL_SYMBOL) {
- sprintf( msg, "String %d: Entry %d done previously", i, j); /* Flawfinder: ignore */
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- output[j].sym.type = input[i].type;
- output[j].sym.value = value;
- output[j].statechange = input[i].statechange;
- /* Signal long codeword by inverting "bits" */
- if (input[i].type == SYM_ESCAPE) {
- output[j].bits = -bits;
- } else {
- output[j].bits = bits;
- }
- }
- ++value;
- codeword += (1 << (DECTABBITS - bits));
- }
- if (++i > DECTABSIZE) {
- goto no_end;
- }
- }
- /* if (flc == 0) {
- printf("Reached End after finding %d variable length codesn", i);
- } else {
- printf("Reached End after finding %d fixed length entriesn", i-1);
- }
- */
- return (OK);
-
- no_end:
- sprintf( msg, "No End mark"); /* Flawfinder: ignore */
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- // Parse bitstring "vlc", return length in "bits" and value in "codeword"
- static int parse_bits( char vlc[], /* String with bit pattern */
- int strmax, /* Max characters in "vlc" excluding terminating null */
- int maxbits, /* Max # bits in codeword */
- int * bits, /* Returns # bits; 0 < bits < maxbits+1 */
- int * codeword, /* Returns codeword */
- int minBits // Min # bits in codeword
- )
- {
- int j, c;
- char msg[120]; /* Flawfinder: ignore */
-
- *bits = 0, j = 0, *codeword = 0;
- c = vlc[j];
- while (c != 0) {
- if (c == '0' || c == '1') {
- *codeword <<= 1;
- ++(*bits);
- if (c == '1') {
- ++(*codeword);
- }
- } else if (isspace(c) == 0) { /* Found illegal character */
- SafeSprintf(msg, 120, "parse_bits - Illegal string: %s", vlc);
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- c = vlc[++j];
- }
- if (j > strmax) {
- SafeSprintf(msg, 120, "Too long string: %s", vlc);
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- if (*bits > maxbits || *bits < minBits) {
- SafeSprintf(msg, 120, "Illegal string: %s", vlc);
- H261ErrMsg( msg );
- return( H261_ERROR );
- }
- return (OK);
- }
- /////////// Routines for debugging //////////////
- // strpad - Pad str to length len; return number of appended chars
- /*static int strpad( char str[], int pad, int len)
- {
- int i, numpad;
- numpad = 0;
- for (i = strlen(str); i < len; i++) {
- str[i] = pad;
- ++numpad;
- }
- if (numpad > 0) {
- str[len] = NULL;
- }
- return (numpad);
- }*/
- extern void printsym( SYMBOL sym )
- {
- char ctype[80]; /* Flawfinder: ignore */
-
- sprinttype( sym.type, ctype, 80);
- printf("%s =%4d", ctype, sym.value);
- return;
- }
- extern void sprintsym( SYMBOL sym, char s[], int sBufLen)
- {
- char ctype[80]; /* Flawfinder: ignore */
-
- sprinttype( sym.type, ctype, 80);
- SafeSprintf(s, sBufLen, "%s =%4d", ctype, sym.value);
- return;
- }
- extern void sprinttype( int symtype, char s[], int sBufLen)
- {
- switch (symtype) {
- case SYM_EXIT:
- SafeSprintf(s, sBufLen, "EXIT");
- break;
- case SYM_ESCAPE:
- SafeSprintf(s, sBufLen, "ESCAPE Table");
- break;
- case SYM_EOB:
- SafeSprintf(s, sBufLen, "End Of Block");
- break;
- case SYM_INTRA_DC:
- SafeSprintf(s, sBufLen, "Intra DC");
- break;
- case SYM_MBA:
- SafeSprintf(s, sBufLen, "MBA");
- break;
- case SYM_STARTCODE:
- SafeSprintf(s, sBufLen, "StartCode");
- break;
- case SYM_MBA_STUFFING:
- SafeSprintf(s, sBufLen, "MBA Stuffing");
- break;
- case SYM_MTYPE:
- SafeSprintf(s, sBufLen, "MB Type");
- break;
- case SYM_MVD:
- SafeSprintf(s, sBufLen, "MVDiff");
- break;
- case SYM_CBP:
- SafeSprintf(s, sBufLen, "CBP");
- break;
- case SYM_QUANT_TR:
- SafeSprintf(s, sBufLen, "Quant/TR");
- break;
- case SYM_GEI_PEI:
- SafeSprintf(s, sBufLen, "ExtraInsert");
- break;
- case SYM_SPARE:
- SafeSprintf(s, sBufLen, "Spare");
- break;
- case SYM_GN:
- SafeSprintf(s, sBufLen, "GOB Number");
- break;
- case SYM_PTYPE:
- SafeSprintf(s, sBufLen, "Picture Type");
- break;
- case SYM_ESC_RUN:
- SafeSprintf(s, sBufLen, "ESC Run");
- break;
- case SYM_ESC_LEVEL:
- SafeSprintf(s, sBufLen, "ESC Level");
- break;
- case SYM_MCBPC:
- SafeSprintf(s, sBufLen, "MCBPC");
- break;
- case SYM_MCBPC_STUFFING:
- SafeSprintf(s, sBufLen, "MCBPC Stuffing");
- break;
- case SYM_MODB:
- SafeSprintf(s, sBufLen, "MODB");
- break;
- case SYM_CBPY:
- SafeSprintf(s, sBufLen, "CBPY");
- break;
- case SYM_DQUANT:
- SafeSprintf(s, sBufLen, "DQUANT");
- break;
- default:
- SafeSprintf(s, sBufLen, "Run = %d Level", symtype);
- break;
- }
- return;
- }
- extern void printstate( int state )
- {
- switch (state) {
- case ST_MC_NOCBP_MVDX:
- printf("MC No coeffs MVDx");
- break;
- case ST_MC_NOCBP_MVDY:
- printf("MC No coeffs MVDy");
- break;
- case ST_MBA_STARTCODE:
- printf("MBA or Startcode");
- break;
- case ST_NEXT_BLK_6:
- printf("One block to go, AC coeff");
- break;
- case ST_FIRST_BLK_6:
- printf("One block to go, first coeff");
- break;
- case ST_NEXT_BLK_5:
- printf("Two blocks to go, AC coeff");
- break;
- case ST_FIRST_BLK_5:
- printf("Two blocks to go, first coeff");
- break;
- case ST_NEXT_BLK_4:
- printf("Three blocks to go, AC coeff");
- break;
- case ST_FIRST_BLK_4:
- printf("Three blocks to go, first coeff");
- break;
- case ST_NEXT_BLK_3:
- printf("Four blocks to go, AC coeff");
- break;
- case ST_FIRST_BLK_3:
- printf("Four blocks to go, first coeff");
- break;
- case ST_NEXT_BLK_2:
- printf("Five blocks to go, AC coeff");
- break;
- case ST_FIRST_BLK_2:
- printf("Five blocks to go, first coeff");
- break;
- case ST_NEXT_BLK_1:
- printf("Six blocks to go, AC coeff");
- break;
- case ST_FIRST_BLK_1:
- printf("Six blocks to go, first coeff");
- break;
- case ST_INTRA_DC_BLK_6:
- printf("Last INTRA block, DC coeff");
- break;
- case ST_INTRA_AC_BLK_5:
- printf("Two INTRA blocks to go, AC coeff");
- break;
- case ST_INTRA_DC_BLK_5:
- printf("Two INTRA blocks to go, DC coeff");
- break;
- case ST_INTRA_AC_BLK_4:
- printf("Three INTRA blocks to go, AC coeff");
- break;
- case ST_INTRA_DC_BLK_4:
- printf("Three INTRA blocks to go, DC coeff");
- break;
- case ST_INTRA_AC_BLK_3:
- printf("Four INTRA blocks to go, AC coeff");
- break;
- case ST_INTRA_DC_BLK_3:
- printf("Four INTRA blocks to go, DC coeff");
- break;
- case ST_INTRA_AC_BLK_2:
- printf("Five INTRA blocks to go, AC coeff");
- break;
- case ST_INTRA_DC_BLK_2:
- printf("Five INTRA blocks to go, DC coeff");
- break;
- case ST_INTRA_AC_BLK_1:
- printf("Six INTRA blocks to go, AC coeff");
- break;
- case ST_INTRA_DC_BLK_1:
- printf("Six INTRA blocks to go, DC coeff");
- break;
- case ST_MC_CBP_MVDX:
- printf("MVDx");
- break;
- case ST_MC_CBP_MVDY:
- printf("MVDy");
- break;
- case ST_CBP:
- printf("CBP");
- break;
- case ST_INTRA_MQUANT:
- printf("INTRA MQUANT");
- break;
- case ST_MC_CBP_MQUANT:
- printf("MC MQUANT");
- break;
- case ST_ESC_BLK_6:
- printf("ESCAPE, one block to go");
- break;
- case ST_INTER_MQUANT:
- printf("INTER MQUANT");
- break;
- case ST_ESC_BLK_5:
- printf("ESCAPE, two blocks to go");
- break;
- case ST_MTYPE:
- printf("MTYPE");
- break;
- case ST_ESC_BLK_4:
- printf("ESCAPE, three blocks to go");
- break;
- case ST_GEI_PEI:
- printf("PEI/GEI");
- break;
- case ST_ESC_BLK_3:
- printf("ESCAPE, four blocks to go");
- break;
- case ST_PTYPE:
- printf("PictureType");
- break;
- case ST_ESC_BLK_2:
- printf("ESCAPE, five blocks to go");
- break;
- case ST_GQUANT:
- printf("GQUANT");
- break;
- case ST_ESC_BLK_1:
- printf("ESCAPE, six blocks to go");
- break;
- case ST_TR:
- printf("TempRef");
- break;
- case ST_AFTER_STARTCODE:
- printf("After Startcode");
- break;
- case ST_ESC_INTRA_5:
- printf("ESCAPE, two INTRA blocks to go");
- break;
- case ST_ESC_INTRA_4:
- printf("ESCAPE, three INTRA blocks to go");
- break;
- case ST_ESC_INTRA_3:
- printf("ESCAPE, four INTRA blocks to go");
- break;
- case ST_ESC_INTRA_2:
- printf("ESCAPE, five INTRA blocks to go");
- break;
- case ST_ESC_INTRA_1:
- printf("ESCAPE, six INTRA blocks to go");
- break;
- // H.263 states
- case ST263_FINISHED:
- printf("Finished H.263 block decoding");
- break;
- case ST263_ESC_FINISHED:
- printf("Decode ESC-LEVEL, then done");
- break;
- case ST263_BLK_6:
- printf("Decoding last block (block 6)");
- break;
- case ST263_ESC_BLK6:
- printf("Decode ESC-LEVEL, then continue with block 6");
- break;
- case ST263_BLK_5:
- printf("Decoding block 5");
- break;
- case ST263_ESC_BLK5:
- printf("Decode ESC-LEVEL, then continue with block 5");
- break;
- case ST263_BLK_4:
- printf("Decoding block 4");
- break;
- case ST263_ESC_BLK4:
- printf("Decode ESC-LEVEL, then continue with block 4");
- break;
- case ST263_BLK_3:
- printf("Decoding block 3");
- break;
- case ST263_ESC_BLK3:
- printf("Decode ESC-LEVEL, then continue with block 3");
- break;
- case ST263_BLK_2:
- printf("Decoding block 2");
- break;
- case ST263_ESC_BLK2:
- printf("Decode ESC-LEVEL, then continue with block 2");
- break;
- case ST263_BLK_1:
- printf("Decoding block 1");
- break;
- case ST263_ESC_BLK1:
- printf("Decode ESC-LEVEL, then continue with block 1");
- break;
- case ST263_INTRA_DC_ONLY:
- printf("Decode INTRA-DC only, then exit");
- break;
- case ST263_INTRA_DC_AC:
- printf("Decode INTRA-DC and AC coeffs, then exit");
- break;
- default:
- printf("Unknown state = %d", state);
- break;
- }
- return;
- }