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-
-/* -----------------------------------------------------------------------------------------------------------
-Software License for The Fraunhofer FDK AAC Codec Library for Android
-
-© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- All rights reserved.
-
- 1. INTRODUCTION
-The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
-the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
-This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
-
-AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
-audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
-independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
-of the MPEG specifications.
-
-Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
-may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
-individually for the purpose of encoding or decoding bit streams in products that are compliant with
-the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
-these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
-software may already be covered under those patent licenses when it is used for those licensed purposes only.
-
-Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
-are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
-applications information and documentation.
-
-2. COPYRIGHT LICENSE
-
-Redistribution and use in source and binary forms, with or without modification, are permitted without
-payment of copyright license fees provided that you satisfy the following conditions:
-
-You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
-your modifications thereto in source code form.
-
-You must retain the complete text of this software license in the documentation and/or other materials
-provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
-You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
-modifications thereto to recipients of copies in binary form.
-
-The name of Fraunhofer may not be used to endorse or promote products derived from this library without
-prior written permission.
-
-You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
-software or your modifications thereto.
-
-Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
-and the date of any change. For modified versions of the FDK AAC Codec, the term
-"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
-"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
-
-3. NO PATENT LICENSE
-
-NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
-ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
-respect to this software.
-
-You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
-by appropriate patent licenses.
-
-4. DISCLAIMER
-
-This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
-"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
-of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
-including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
-or business interruption, however caused and on any theory of liability, whether in contract, strict
-liability, or tort (including negligence), arising in any way out of the use of this software, even if
-advised of the possibility of such damage.
-
-5. CONTACT INFORMATION
-
-Fraunhofer Institute for Integrated Circuits IIS
-Attention: Audio and Multimedia Departments - FDK AAC LL
-Am Wolfsmantel 33
-91058 Erlangen, Germany
-
-www.iis.fraunhofer.de/amm
-amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
-
-/******************************** MPEG Audio Encoder **************************
-
- 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 2024-09-22 08:34:55 +0000