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+/******************************** MPEG Audio Encoder **************************
+
+ (C) Copyright Fraunhofer IIS (1999)
+ All Rights Reserved
+
+ Please be advised that this software and/or program delivery is
+ Confidential Information of Fraunhofer and subject to and covered by the
+
+ Fraunhofer IIS Software Evaluation Agreement
+ between Google Inc. and Fraunhofer
+ effective and in full force since March 1, 2012.
+
+ You may use this software and/or program only under the terms and
+ conditions described in the above mentioned Fraunhofer IIS Software
+ Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+ This software and/or program is protected by copyright law and international
+ treaties. Any reproduction or distribution of this software and/or program,
+ or any portion of it, may result in severe civil and criminal penalties, and
+ will be prosecuted to the maximum extent possible under law.
+
+ $Id$
+ Initial author: M.Werner
+ contents/description: Huffman Bitcounter & coder
+
+******************************************************************************/
+
+#include "bit_cnt.h"
+
+#include "aacEnc_ram.h"
+
+#define HI_LTAB(a) (a>>16)
+#define LO_LTAB(a) (a & 0xffff)
+
+/*****************************************************************************
+
+
+ functionname: FDKaacEnc_count1_2_3_4_5_6_7_8_9_10_11
+ description: counts tables 1-11
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 1-11
+
+*****************************************************************************/
+
+static void FDKaacEnc_count1_2_3_4_5_6_7_8_9_10_11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc1_2,bc3_4,bc5_6,bc7_8,bc9_10,bc11,sc;
+ INT t0,t1,t2,t3;
+ bc1_2=0;
+ bc3_4=0;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
+
+ for(i=0;i<width;i+=4){
+
+ t0= values[i+0];
+ t1= values[i+1];
+ t2= values[i+2];
+ t3= values[i+3];
+
+ /* 1,2 */
+
+ bc1_2+=FDKaacEnc_huff_ltab1_2[t0+1][t1+1][t2+1][t3+1];
+
+ /* 5,6 */
+ bc5_6+=FDKaacEnc_huff_ltab5_6[t0+4][t1+4];
+ bc5_6+=FDKaacEnc_huff_ltab5_6[t2+4][t3+4];
+
+ t0=fixp_abs(t0);
+ t1=fixp_abs(t1);
+ t2=fixp_abs(t2);
+ t3=fixp_abs(t3);
+
+
+ bc3_4+= FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3];
+
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t0][t1];
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t2][t3];
+
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t0][t1];
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t2][t3];
+
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t2][t3];
+
+ sc+=(t0>0)+(t1>0)+(t2>0)+(t3>0);
+ }
+
+ bitCount[1]=HI_LTAB(bc1_2);
+ bitCount[2]=LO_LTAB(bc1_2);
+ bitCount[3]=HI_LTAB(bc3_4)+sc;
+ bitCount[4]=LO_LTAB(bc3_4)+sc;
+ bitCount[5]=HI_LTAB(bc5_6);
+ bitCount[6]=LO_LTAB(bc5_6);
+ bitCount[7]=HI_LTAB(bc7_8)+sc;
+ bitCount[8]=LO_LTAB(bc7_8)+sc;
+ bitCount[9]=HI_LTAB(bc9_10)+sc;
+ bitCount[10]=LO_LTAB(bc9_10)+sc;
+ bitCount[11]=bc11+sc;
+
+}
+
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_count3_4_5_6_7_8_9_10_11
+ description: counts tables 3-11
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 3-11
+
+*****************************************************************************/
+
+static void FDKaacEnc_count3_4_5_6_7_8_9_10_11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc3_4,bc5_6,bc7_8,bc9_10,bc11,sc;
+ INT t0,t1,t2,t3;
+
+ bc3_4=0;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
+
+ for(i=0;i<width;i+=4){
+
+ t0= values[i+0];
+ t1= values[i+1];
+ t2= values[i+2];
+ t3= values[i+3];
+
+ bc5_6+=FDKaacEnc_huff_ltab5_6[t0+4][t1+4];
+ bc5_6+=FDKaacEnc_huff_ltab5_6[t2+4][t3+4];
+
+ t0=fixp_abs(t0);
+ t1=fixp_abs(t1);
+ t2=fixp_abs(t2);
+ t3=fixp_abs(t3);
+
+ bc3_4+= FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3];
+
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t0][t1];
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t2][t3];
+
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t0][t1];
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t2][t3];
+
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t2][t3];
+
+ sc+=(t0>0)+(t1>0)+(t2>0)+(t3>0);
+ }
+
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=HI_LTAB(bc3_4)+sc;
+ bitCount[4]=LO_LTAB(bc3_4)+sc;
+ bitCount[5]=HI_LTAB(bc5_6);
+ bitCount[6]=LO_LTAB(bc5_6);
+ bitCount[7]=HI_LTAB(bc7_8)+sc;
+ bitCount[8]=LO_LTAB(bc7_8)+sc;
+ bitCount[9]=HI_LTAB(bc9_10)+sc;
+ bitCount[10]=LO_LTAB(bc9_10)+sc;
+ bitCount[11]=bc11+sc;
+}
+
+
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_count5_6_7_8_9_10_11
+ description: counts tables 5-11
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 5-11
+
+*****************************************************************************/
+
+
+static void FDKaacEnc_count5_6_7_8_9_10_11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc5_6,bc7_8,bc9_10,bc11,sc;
+ INT t0,t1;
+ bc5_6=0;
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
+
+ for(i=0;i<width;i+=2){
+
+ t0 = values[i+0];
+ t1 = values[i+1];
+
+ bc5_6+=FDKaacEnc_huff_ltab5_6[t0+4][t1+4];
+
+ t0=fixp_abs(t0);
+ t1=fixp_abs(t1);
+
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t0][t1];
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t0][t1];
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+
+ sc+=(t0>0)+(t1>0);
+ }
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=HI_LTAB(bc5_6);
+ bitCount[6]=LO_LTAB(bc5_6);
+ bitCount[7]=HI_LTAB(bc7_8)+sc;
+ bitCount[8]=LO_LTAB(bc7_8)+sc;
+ bitCount[9]=HI_LTAB(bc9_10)+sc;
+ bitCount[10]=LO_LTAB(bc9_10)+sc;
+ bitCount[11]=bc11+sc;
+
+}
+
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_count7_8_9_10_11
+ description: counts tables 7-11
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 7-11
+
+*****************************************************************************/
+
+static void FDKaacEnc_count7_8_9_10_11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc7_8,bc9_10,bc11,sc;
+ INT t0,t1;
+
+ bc7_8=0;
+ bc9_10=0;
+ bc11=0;
+ sc=0;
+
+ for(i=0;i<width;i+=2){
+ t0=fixp_abs(values[i+0]);
+ t1=fixp_abs(values[i+1]);
+
+ bc7_8+=FDKaacEnc_huff_ltab7_8[t0][t1];
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t0][t1];
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+ sc+=(t0>0)+(t1>0);
+ }
+
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=HI_LTAB(bc7_8)+sc;
+ bitCount[8]=LO_LTAB(bc7_8)+sc;
+ bitCount[9]=HI_LTAB(bc9_10)+sc;
+ bitCount[10]=LO_LTAB(bc9_10)+sc;
+ bitCount[11]=bc11+sc;
+
+}
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_count9_10_11
+ description: counts tables 9-11
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 9-11
+
+*****************************************************************************/
+
+
+
+static void FDKaacEnc_count9_10_11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc9_10,bc11,sc;
+ INT t0,t1;
+
+ bc9_10=0;
+ bc11=0;
+ sc=0;
+
+ for(i=0;i<width;i+=2){
+ t0=fixp_abs(values[i+0]);
+ t1=fixp_abs(values[i+1]);
+
+ bc9_10+=FDKaacEnc_huff_ltab9_10[t0][t1];
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+
+ sc+=(t0>0)+(t1>0);
+ }
+
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=INVALID_BITCOUNT;
+ bitCount[8]=INVALID_BITCOUNT;
+ bitCount[9]=HI_LTAB(bc9_10)+sc;
+ bitCount[10]=LO_LTAB(bc9_10)+sc;
+ bitCount[11]=bc11+sc;
+
+}
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_count11
+ description: counts table 11
+ returns:
+ input: quantized spectrum
+ output: bitCount for table 11
+
+*****************************************************************************/
+
+static void FDKaacEnc_count11(const SHORT *RESTRICT values,
+ const INT width,
+ INT *bitCount)
+{
+
+ INT i;
+ INT bc11,sc;
+ INT t0,t1;
+
+ bc11=0;
+ sc=0;
+ for(i=0;i<width;i+=2){
+ t0=fixp_abs(values[i+0]);
+ t1=fixp_abs(values[i+1]);
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t0][t1];
+ sc+=(t0>0)+(t1>0);
+ }
+
+ bitCount[1]=INVALID_BITCOUNT;
+ bitCount[2]=INVALID_BITCOUNT;
+ bitCount[3]=INVALID_BITCOUNT;
+ bitCount[4]=INVALID_BITCOUNT;
+ bitCount[5]=INVALID_BITCOUNT;
+ bitCount[6]=INVALID_BITCOUNT;
+ bitCount[7]=INVALID_BITCOUNT;
+ bitCount[8]=INVALID_BITCOUNT;
+ bitCount[9]=INVALID_BITCOUNT;
+ bitCount[10]=INVALID_BITCOUNT;
+ bitCount[11]=bc11+sc;
+}
+
+/*****************************************************************************
+
+ functionname: FDKaacEnc_countEsc
+ description: counts table 11 (with Esc)
+ returns:
+ input: quantized spectrum
+ output: bitCount for tables 11 (with Esc)
+
+*****************************************************************************/
+
+static void FDKaacEnc_countEsc(const SHORT *RESTRICT values,
+ const INT width,
+ INT *RESTRICT bitCount)
+{
+
+ INT i;
+ INT bc11,ec,sc;
+ INT t0,t1,t00,t01;
+
+ bc11=0;
+ sc=0;
+ ec=0;
+ for(i=0;i<width;i+=2){
+ t0=fixp_abs(values[i+0]);
+ t1=fixp_abs(values[i+1]);
+
+ sc+=(t0>0)+(t1>0);
+
+ t00 = fixMin(t0,16);
+ t01 = fixMin(t1,16);
+ bc11+= (INT) FDKaacEnc_huff_ltab11[t00][t01];
+
+ if(t0>=16){
+ ec+=5;
+ while((t0>>=1) >= 16)
+ ec+=2;
+ }
+
+ if(t1>=16){
+ ec+=5;
+ while((t1>>=1) >= 16)
+ ec+=2;
+ }
+ }
+
+ for (i=0; i<11; i++)
+ bitCount[i]=INVALID_BITCOUNT;
+
+ bitCount[11]=bc11+sc+ec;
+}
+
+
+typedef void (*COUNT_FUNCTION)(const SHORT *RESTRICT values,
+ const INT width,
+ INT *RESTRICT bitCount);
+
+static const COUNT_FUNCTION countFuncTable[CODE_BOOK_ESC_LAV+1] =
+{
+
+ FDKaacEnc_count1_2_3_4_5_6_7_8_9_10_11, /* 0 */
+ FDKaacEnc_count1_2_3_4_5_6_7_8_9_10_11, /* 1 */
+ FDKaacEnc_count3_4_5_6_7_8_9_10_11, /* 2 */
+ FDKaacEnc_count5_6_7_8_9_10_11, /* 3 */
+ FDKaacEnc_count5_6_7_8_9_10_11, /* 4 */
+ FDKaacEnc_count7_8_9_10_11, /* 5 */
+ FDKaacEnc_count7_8_9_10_11, /* 6 */
+ FDKaacEnc_count7_8_9_10_11, /* 7 */
+ FDKaacEnc_count9_10_11, /* 8 */
+ FDKaacEnc_count9_10_11, /* 9 */
+ FDKaacEnc_count9_10_11, /* 10 */
+ FDKaacEnc_count9_10_11, /* 11 */
+ FDKaacEnc_count9_10_11, /* 12 */
+ FDKaacEnc_count11, /* 13 */
+ FDKaacEnc_count11, /* 14 */
+ FDKaacEnc_count11, /* 15 */
+ FDKaacEnc_countEsc /* 16 */
+};
+
+
+
+INT FDKaacEnc_bitCount(const SHORT *values,
+ const INT width,
+ INT maxVal,
+ INT *bitCount)
+{
+
+ /*
+ check if we can use codebook 0
+ */
+
+ if(maxVal == 0)
+ bitCount[0] = 0;
+ else
+ bitCount[0] = INVALID_BITCOUNT;
+
+ maxVal = fixMin(maxVal,(INT)CODE_BOOK_ESC_LAV);
+ countFuncTable[maxVal](values,width,bitCount);
+ return(0);
+}
+
+
+
+
+/*
+ count difference between actual and zeroed lines
+*/
+INT FDKaacEnc_countValues(SHORT *RESTRICT values, INT width, INT codeBook)
+{
+
+ INT i,t0,t1,t2,t3,t00,t01;
+ INT codeLength;
+ INT signLength;
+ INT bitCnt=0;
+
+ switch(codeBook){
+ case CODE_BOOK_ZERO_NO:
+ break;
+
+ case CODE_BOOK_1_NO:
+ for(i=0; i<width; i+=4) {
+ t0 = values[i+0];
+ t1 = values[i+1];
+ t2 = values[i+2];
+ t3 = values[i+3];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
+ bitCnt+= codeLength;
+ }
+ break;
+
+ case CODE_BOOK_2_NO:
+ for(i=0; i<width; i+=4) {
+ t0 = values[i+0];
+ t1 = values[i+1];
+ t2 = values[i+2];
+ t3 = values[i+3];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab1_2[t0+1][t1+1][t2+1][t3+1]);
+ bitCnt+= codeLength;
+ }
+ break;
+
+ case CODE_BOOK_3_NO:
+ for(i=0; i<width; i+=4) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ t2 = values[i+2];
+ if(t2 != 0){
+ signLength++;
+ t2=fixp_abs(t2);
+ }
+ t3 = values[i+3];
+ if(t3 != 0){
+ signLength++;
+ t3=fixp_abs(t3);
+ }
+
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3]);
+ bitCnt+=codeLength+signLength;
+ }
+ break;
+
+ case CODE_BOOK_4_NO:
+ for(i=0; i<width; i+=4) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ t2 = values[i+2];
+ if(t2 != 0){
+ signLength++;
+ t2=fixp_abs(t2);
+ }
+ t3 = values[i+3];
+ if(t3 != 0){
+ signLength++;
+ t3=fixp_abs(t3);
+ }
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3]);
+ bitCnt+=codeLength+signLength;
+ }
+ break;
+
+ case CODE_BOOK_5_NO:
+ for(i=0; i<width; i+=2) {
+ t0 = values[i+0];
+ t1 = values[i+1];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab5_6[t0+4][t1+4]);
+ bitCnt+=codeLength;
+ }
+ break;
+
+ case CODE_BOOK_6_NO:
+ for(i=0; i<width; i+=2) {
+ t0 = values[i+0];
+ t1 = values[i+1];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab5_6[t0+4][t1+4]);
+ bitCnt+=codeLength;
+ }
+ break;
+
+ case CODE_BOOK_7_NO:
+ for(i=0; i<width; i+=2){
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab7_8[t0][t1]);
+ bitCnt+=codeLength +signLength;
+ }
+ break;
+
+ case CODE_BOOK_8_NO:
+ for(i=0; i<width; i+=2) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab7_8[t0][t1]);
+ bitCnt+=codeLength +signLength;
+ }
+ break;
+
+ case CODE_BOOK_9_NO:
+ for(i=0; i<width; i+=2) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab9_10[t0][t1]);
+ bitCnt+=codeLength +signLength;
+ }
+ break;
+
+ case CODE_BOOK_10_NO:
+ for(i=0; i<width; i+=2) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab9_10[t0][t1]);
+ bitCnt+=codeLength +signLength;
+ }
+ break;
+
+ case CODE_BOOK_ESC_NO:
+ for(i=0; i<width; i+=2) {
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ t0=fixp_abs(t0);
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ t1=fixp_abs(t1);
+ }
+ t00 = fixMin(t0,16);
+ t01 = fixMin(t1,16);
+
+ codeLength = (INT) FDKaacEnc_huff_ltab11[t00][t01];
+ bitCnt+=codeLength +signLength;
+ if(t0 >=16){
+ INT n,p;
+ n=0;
+ p=t0;
+ while((p>>=1) >=16){
+ bitCnt++;
+ n++;
+ }
+ bitCnt+=(n+5);
+ }
+ if(t1 >=16){
+ INT n,p;
+ n=0;
+ p=t1;
+ while((p>>=1) >=16){
+ bitCnt++;
+ n++;
+ }
+ bitCnt+=(n+5);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return(bitCnt);
+}
+
+
+
+INT FDKaacEnc_codeValues(SHORT *RESTRICT values, INT width, INT codeBook, HANDLE_FDK_BITSTREAM hBitstream)
+{
+
+ INT i,t0,t1,t2,t3,t00,t01;
+ INT codeWord,codeLength;
+ INT sign,signLength;
+
+ switch(codeBook){
+ case CODE_BOOK_ZERO_NO:
+ break;
+
+ case CODE_BOOK_1_NO:
+ for(i=0; i<width; i+=4) {
+ t0 = values[i+0]+1;
+ t1 = values[i+1]+1;
+ t2 = values[i+2]+1;
+ t3 = values[i+3]+1;
+ codeWord = FDKaacEnc_huff_ctab1[t0][t1][t2][t3];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab1_2[t0][t1][t2][t3]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ }
+ break;
+
+ case CODE_BOOK_2_NO:
+ for(i=0; i<width; i+=4) {
+ t0 = values[i+0]+1;
+ t1 = values[i+1]+1;
+ t2 = values[i+2]+1;
+ t3 = values[i+3]+1;
+ codeWord = FDKaacEnc_huff_ctab2[t0][t1][t2][t3];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab1_2[t0][t1][t2][t3]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ }
+ break;
+
+ case CODE_BOOK_3_NO:
+ for(i=0; i<width; i+=4) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ t2 = values[i+2];
+ if(t2 != 0){
+ signLength++;
+ sign<<=1;
+ if(t2 < 0){
+ sign|=1;
+ t2=fixp_abs(t2);
+ }
+ }
+ t3 = values[i+3];
+ if(t3 != 0){
+ signLength++;
+ sign<<=1;
+ if(t3 < 0){
+ sign|=1;
+ t3=fixp_abs(t3);
+ }
+ }
+
+ codeWord = FDKaacEnc_huff_ctab3[t0][t1][t2][t3];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_4_NO:
+ for(i=0; i<width; i+=4) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ t2 = values[i+2];
+ if(t2 != 0){
+ signLength++;
+ sign<<=1;
+ if(t2 < 0){
+ sign|=1;
+ t2=fixp_abs(t2);
+ }
+ }
+ t3 = values[i+3];
+ if(t3 != 0){
+ signLength++;
+ sign<<=1;
+ if(t3 < 0){
+ sign|=1;
+ t3=fixp_abs(t3);
+ }
+ }
+ codeWord = FDKaacEnc_huff_ctab4[t0][t1][t2][t3];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab3_4[t0][t1][t2][t3]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_5_NO:
+ for(i=0; i<width; i+=2) {
+ t0 = values[i+0]+4;
+ t1 = values[i+1]+4;
+ codeWord = FDKaacEnc_huff_ctab5[t0][t1];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab5_6[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ }
+ break;
+
+ case CODE_BOOK_6_NO:
+ for(i=0; i<width; i+=2) {
+ t0 = values[i+0]+4;
+ t1 = values[i+1]+4;
+ codeWord = FDKaacEnc_huff_ctab6[t0][t1];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab5_6[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ }
+ break;
+
+ case CODE_BOOK_7_NO:
+ for(i=0; i<width; i+=2){
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ codeWord = FDKaacEnc_huff_ctab7[t0][t1];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab7_8[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_8_NO:
+ for(i=0; i<width; i+=2) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ codeWord = FDKaacEnc_huff_ctab8[t0][t1];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab7_8[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_9_NO:
+ for(i=0; i<width; i+=2) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ codeWord = FDKaacEnc_huff_ctab9[t0][t1];
+ codeLength = HI_LTAB(FDKaacEnc_huff_ltab9_10[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_10_NO:
+ for(i=0; i<width; i+=2) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ codeWord = FDKaacEnc_huff_ctab10[t0][t1];
+ codeLength = LO_LTAB(FDKaacEnc_huff_ltab9_10[t0][t1]);
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ }
+ break;
+
+ case CODE_BOOK_ESC_NO:
+ for(i=0; i<width; i+=2) {
+ sign=0;
+ signLength=0;
+ t0 = values[i+0];
+ if(t0 != 0){
+ signLength++;
+ sign<<=1;
+ if(t0 < 0){
+ sign|=1;
+ t0=fixp_abs(t0);
+ }
+ }
+ t1 = values[i+1];
+ if(t1 != 0){
+ signLength++;
+ sign<<=1;
+ if(t1 < 0){
+ sign|=1;
+ t1=fixp_abs(t1);
+ }
+ }
+ t00 = fixMin(t0,16);
+ t01 = fixMin(t1,16);
+
+ codeWord = FDKaacEnc_huff_ctab11[t00][t01];
+ codeLength = (INT) FDKaacEnc_huff_ltab11[t00][t01];
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ FDKwriteBits(hBitstream,sign,signLength);
+ if(t0 >=16){
+ INT n,p;
+ n=0;
+ p=t0;
+ while((p>>=1) >=16){
+ FDKwriteBits(hBitstream,1,1);
+ n++;
+ }
+ FDKwriteBits(hBitstream,0,1);
+ FDKwriteBits(hBitstream,t0-(1<<(n+4)),n+4);
+ }
+ if(t1 >=16){
+ INT n,p;
+ n=0;
+ p=t1;
+ while((p>>=1) >=16){
+ FDKwriteBits(hBitstream,1,1);
+ n++;
+ }
+ FDKwriteBits(hBitstream,0,1);
+ FDKwriteBits(hBitstream,t1-(1<<(n+4)),n+4);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ return(0);
+}
+
+INT FDKaacEnc_codeScalefactorDelta(INT delta, HANDLE_FDK_BITSTREAM hBitstream)
+{
+ INT codeWord,codeLength;
+
+ if(fixp_abs(delta) >CODE_BOOK_SCF_LAV)
+ return(1);
+
+ codeWord = FDKaacEnc_huff_ctabscf[delta+CODE_BOOK_SCF_LAV];
+ codeLength = (INT)FDKaacEnc_huff_ltabscf[delta+CODE_BOOK_SCF_LAV];
+ FDKwriteBits(hBitstream,codeWord,codeLength);
+ return(0);
+}
+
+
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-21 22:53:30 +0000