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authorXin Li <delphij@google.com>2018-08-07 16:51:25 +0000
committerGerrit Code Review <noreply-gerritcodereview@google.com>2018-08-07 16:51:25 +0000
commit7027cd87488c2a60becbae7a139d18dbc0370459 (patch)
tree41c65cebd836ff3f949f1134512985e4a1288593 /libAACenc/src/dyn_bits.cpp
parenta3e0aa5f25908d92535e045bbde73c9a3d19adc7 (diff)
parent0757f38b01d703b355eb5e5acc1f344a949e74e1 (diff)
downloadfdk-aac-7027cd87488c2a60becbae7a139d18dbc0370459.tar.gz
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Merge "Merge Android Pie into master"
Diffstat (limited to 'libAACenc/src/dyn_bits.cpp')
-rw-r--r--libAACenc/src/dyn_bits.cpp750
1 files changed, 304 insertions, 446 deletions
diff --git a/libAACenc/src/dyn_bits.cpp b/libAACenc/src/dyn_bits.cpp
index 0c07109..74baeb8 100644
--- a/libAACenc/src/dyn_bits.cpp
+++ b/libAACenc/src/dyn_bits.cpp
@@ -1,74 +1,85 @@
-
-/* -----------------------------------------------------------------------------------------------------------
+/* -----------------------------------------------------------------------------
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.
+© Copyright 1995 - 2018 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.
+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:
+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 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
+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.
+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.
+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."
+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.
+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.
+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.
+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
@@ -79,14 +90,15 @@ Am Wolfsmantel 33
www.iis.fraunhofer.de/amm
amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
+----------------------------------------------------------------------------- */
+
+/**************************** AAC encoder library ******************************
-/******************************** MPEG Audio Encoder **************************
+ Author(s): M.Werner
- Initial author: M.Werner
- contents/description: Noiseless coder module
+ Description: Noiseless coder module
-******************************************************************************/
+*******************************************************************************/
#include "dyn_bits.h"
#include "bit_cnt.h"
@@ -97,18 +109,15 @@ amm-info@iis.fraunhofer.de
typedef INT (*lookUpTable)[CODE_BOOK_ESC_NDX + 1];
-static INT FDKaacEnc_getSideInfoBits(
- const SECTION_INFO* const huffsection,
- const SHORT* const sideInfoTab,
- const INT useHCR
- )
-{
+static INT FDKaacEnc_getSideInfoBits(const SECTION_INFO* const huffsection,
+ const SHORT* const sideInfoTab,
+ const INT useHCR) {
INT sideInfoBits;
- if ( useHCR && ((huffsection->codeBook == 11) || (huffsection->codeBook >= 16)) ) {
+ if (useHCR &&
+ ((huffsection->codeBook == 11) || (huffsection->codeBook >= 16))) {
sideInfoBits = 5;
- }
- else {
+ } else {
sideInfoBits = sideInfoTab[huffsection->sfbCnt];
}
@@ -117,43 +126,32 @@ static INT FDKaacEnc_getSideInfoBits(
/* count bits using all possible tables */
static void FDKaacEnc_buildBitLookUp(
- const SHORT* const quantSpectrum,
- const INT maxSfb,
- const INT* const sfbOffset,
- const UINT* const sfbMax,
- INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- SECTION_INFO* const huffsection
- )
-{
+ const SHORT* const quantSpectrum, const INT maxSfb,
+ const INT* const sfbOffset, const UINT* const sfbMax,
+ INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
+ SECTION_INFO* const huffsection) {
INT i, sfbWidth;
- for (i = 0; i < maxSfb; i++)
- {
+ for (i = 0; i < maxSfb; i++) {
huffsection[i].sfbCnt = 1;
huffsection[i].sfbStart = i;
huffsection[i].sectionBits = INVALID_BITCOUNT;
huffsection[i].codeBook = -1;
sfbWidth = sfbOffset[i + 1] - sfbOffset[i];
- FDKaacEnc_bitCount(quantSpectrum + sfbOffset[i], sfbWidth, sfbMax[i], bitLookUp[i]);
+ FDKaacEnc_bitCount(quantSpectrum + sfbOffset[i], sfbWidth, sfbMax[i],
+ bitLookUp[i]);
}
}
/* essential helper functions */
-static INT FDKaacEnc_findBestBook(
- const INT* const bc,
- INT* const book,
- const INT useVCB11
- )
-{
+static inline INT FDKaacEnc_findBestBook(const INT* const bc, INT* const book,
+ const INT useVCB11) {
INT minBits = INVALID_BITCOUNT, j;
int end = CODE_BOOK_ESC_NDX;
-
- for (j = 0; j <= end; j++)
- {
- if (bc[j] < minBits)
- {
+ for (j = 0; j <= end; j++) {
+ if (bc[j] < minBits) {
minBits = bc[j];
*book = j;
}
@@ -161,114 +159,94 @@ static INT FDKaacEnc_findBestBook(
return (minBits);
}
-static INT FDKaacEnc_findMinMergeBits(
- const INT* const bc1,
- const INT* const bc2,
- const INT useVCB11
- )
-{
+static inline INT FDKaacEnc_findMinMergeBits(const INT* const bc1,
+ const INT* const bc2,
+ const INT useVCB11) {
INT minBits = INVALID_BITCOUNT, j;
- int end = CODE_BOOK_ESC_NDX;
-
+ DWORD_ALIGNED(bc1);
+ DWORD_ALIGNED(bc2);
- for (j = 0; j <= end; j++)
- {
- if (bc1[j] + bc2[j] < minBits)
- {
- minBits = bc1[j] + bc2[j];
- }
+ for (j = 0; j <= CODE_BOOK_ESC_NDX; j++) {
+ minBits = fixMin(minBits, bc1[j] + bc2[j]);
}
return (minBits);
}
-static void FDKaacEnc_mergeBitLookUp(
- INT* const bc1,
- const INT* const bc2
- )
-{
+static inline void FDKaacEnc_mergeBitLookUp(INT* const RESTRICT bc1,
+ const INT* const RESTRICT bc2) {
int j;
- for (j = 0; j <= CODE_BOOK_ESC_NDX; j++)
- {
+ for (j = 0; j <= CODE_BOOK_ESC_NDX; j++) {
+ FDK_ASSERT(INVALID_BITCOUNT == 0x1FFFFFFF);
bc1[j] = fixMin(bc1[j] + bc2[j], INVALID_BITCOUNT);
}
}
-static INT FDKaacEnc_findMaxMerge(
- const INT* const mergeGainLookUp,
- const SECTION_INFO* const huffsection,
- const INT maxSfb,
- INT* const maxNdx
- )
-{
+static inline INT FDKaacEnc_findMaxMerge(const INT* const mergeGainLookUp,
+ const SECTION_INFO* const huffsection,
+ const INT maxSfb, INT* const maxNdx) {
INT i, maxMergeGain = 0;
+ int lastMaxNdx = 0;
- for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt)
- {
- if (mergeGainLookUp[i] > maxMergeGain)
- {
+ for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt) {
+ if (mergeGainLookUp[i] > maxMergeGain) {
maxMergeGain = mergeGainLookUp[i];
- *maxNdx = i;
+ lastMaxNdx = i;
}
}
+ *maxNdx = lastMaxNdx;
return (maxMergeGain);
}
-static INT FDKaacEnc_CalcMergeGain(
- const SECTION_INFO* const huffsection,
- const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- const SHORT* const sideInfoTab,
- const INT ndx1,
- const INT ndx2,
- const INT useVCB11
- )
-{
+static inline INT FDKaacEnc_CalcMergeGain(
+ const SECTION_INFO* const huffsection,
+ const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
+ const SHORT* const sideInfoTab, const INT ndx1, const INT ndx2,
+ const INT useVCB11) {
INT MergeGain, MergeBits, SplitBits;
- MergeBits = sideInfoTab[huffsection[ndx1].sfbCnt + huffsection[ndx2].sfbCnt] + FDKaacEnc_findMinMergeBits(bitLookUp[ndx1], bitLookUp[ndx2], useVCB11);
- SplitBits = huffsection[ndx1].sectionBits + huffsection[ndx2].sectionBits; /* Bit amount for splitted huffsections */
+ MergeBits =
+ sideInfoTab[huffsection[ndx1].sfbCnt + huffsection[ndx2].sfbCnt] +
+ FDKaacEnc_findMinMergeBits(bitLookUp[ndx1], bitLookUp[ndx2], useVCB11);
+ SplitBits =
+ huffsection[ndx1].sectionBits +
+ huffsection[ndx2].sectionBits; /* Bit amount for splitted huffsections */
MergeGain = SplitBits - MergeBits;
- if ( (huffsection[ndx1].codeBook==CODE_BOOK_PNS_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_PNS_NO)
- || (huffsection[ndx1].codeBook==CODE_BOOK_IS_OUT_OF_PHASE_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_IS_OUT_OF_PHASE_NO)
- || (huffsection[ndx1].codeBook==CODE_BOOK_IS_IN_PHASE_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_IS_IN_PHASE_NO)
- )
- {
+ if ((huffsection[ndx1].codeBook == CODE_BOOK_PNS_NO) ||
+ (huffsection[ndx2].codeBook == CODE_BOOK_PNS_NO) ||
+ (huffsection[ndx1].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
+ (huffsection[ndx2].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
+ (huffsection[ndx1].codeBook == CODE_BOOK_IS_IN_PHASE_NO) ||
+ (huffsection[ndx2].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
MergeGain = -1;
}
return (MergeGain);
}
-
/* sectioning Stage 0:find minimum codbooks */
static void FDKaacEnc_gmStage0(
- SECTION_INFO* const RESTRICT huffsection,
- const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- const INT maxSfb,
- const INT* const noiseNrg,
- const INT* const isBook
- )
-{
+ SECTION_INFO* const RESTRICT huffsection,
+ const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
+ const INT* const noiseNrg, const INT* const isBook) {
INT i;
- for (i = 0; i < maxSfb; i++)
- {
+ for (i = 0; i < maxSfb; i++) {
/* Side-Info bits will be calculated in Stage 1! */
- if (huffsection[i].sectionBits == INVALID_BITCOUNT)
- {
+ if (huffsection[i].sectionBits == INVALID_BITCOUNT) {
/* intensity and pns codebooks are already allocated in bitcount.c */
- if(noiseNrg[i] != NO_NOISE_PNS){
- huffsection[i].codeBook=CODE_BOOK_PNS_NO;
+ if (noiseNrg[i] != NO_NOISE_PNS) {
+ huffsection[i].codeBook = CODE_BOOK_PNS_NO;
huffsection[i].sectionBits = 0;
- }
- else if( isBook[i] ) {
- huffsection[i].codeBook=isBook[i];
+ } else if (isBook[i]) {
+ huffsection[i].codeBook = isBook[i];
huffsection[i].sectionBits = 0;
- }
- else {
- huffsection[i].sectionBits = FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook), 0); /* useVCB11 must be 0!!! */
+ } else {
+ huffsection[i].sectionBits =
+ FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook),
+ 0); /* useVCB11 must be 0!!! */
}
}
}
@@ -279,24 +257,18 @@ static void FDKaacEnc_gmStage0(
calculate side info
*/
static void FDKaacEnc_gmStage1(
- SECTION_INFO* const RESTRICT huffsection,
- INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- const INT maxSfb,
- const SHORT* const sideInfoTab,
- const INT useVCB11
- )
-{
+ SECTION_INFO* const RESTRICT huffsection,
+ INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
+ const SHORT* const sideInfoTab, const INT useVCB11) {
INT mergeStart = 0, mergeEnd;
- do
- {
- for (mergeEnd = mergeStart + 1; mergeEnd < maxSfb; mergeEnd++)
- {
+ do {
+ for (mergeEnd = mergeStart + 1; mergeEnd < maxSfb; mergeEnd++) {
if (huffsection[mergeStart].codeBook != huffsection[mergeEnd].codeBook)
break;
-
- /* we can merge. update tables, side info bits will be updated outside of this loop */
+ /* we can merge. update tables, side info bits will be updated outside of
+ * this loop */
huffsection[mergeStart].sfbCnt++;
huffsection[mergeStart].sectionBits += huffsection[mergeEnd].sectionBits;
@@ -305,8 +277,10 @@ static void FDKaacEnc_gmStage1(
}
/* add side info info bits */
- huffsection[mergeStart].sectionBits += FDKaacEnc_getSideInfoBits(&huffsection[mergeStart], sideInfoTab, useVCB11);
- huffsection[mergeEnd - 1].sfbStart = huffsection[mergeStart].sfbStart; /* speed up prev search */
+ huffsection[mergeStart].sectionBits += FDKaacEnc_getSideInfoBits(
+ &huffsection[mergeStart], sideInfoTab, useVCB11);
+ huffsection[mergeEnd - 1].sfbStart =
+ huffsection[mergeStart].sfbStart; /* speed up prev search */
mergeStart = mergeEnd;
@@ -317,132 +291,101 @@ static void FDKaacEnc_gmStage1(
sectioning Stage 2:greedy merge algorithm, merge connected sections with
maximum bit gain until no more gain is possible
*/
-static void
-FDKaacEnc_gmStage2(
- SECTION_INFO* const RESTRICT huffsection,
- INT* const RESTRICT mergeGainLookUp,
- INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- const INT maxSfb,
- const SHORT* const sideInfoTab,
- const INT useVCB11
- )
-{
+static inline void FDKaacEnc_gmStage2(
+ SECTION_INFO* const RESTRICT huffsection,
+ INT* const RESTRICT mergeGainLookUp,
+ INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
+ const SHORT* const sideInfoTab, const INT useVCB11) {
INT i;
- for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt)
- {
- mergeGainLookUp[i] = FDKaacEnc_CalcMergeGain(huffsection,
- bitLookUp,
- sideInfoTab,
- i,
- i + huffsection[i].sfbCnt,
- useVCB11);
+ for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt) {
+ mergeGainLookUp[i] =
+ FDKaacEnc_CalcMergeGain(huffsection, bitLookUp, sideInfoTab, i,
+ i + huffsection[i].sfbCnt, useVCB11);
}
- while (TRUE)
- {
- INT maxMergeGain, maxNdx = 0, maxNdxNext, maxNdxLast;
+ while (TRUE) {
+ INT maxMergeGain, maxNdx, maxNdxNext, maxNdxLast;
- maxMergeGain = FDKaacEnc_findMaxMerge(mergeGainLookUp, huffsection, maxSfb, &maxNdx);
+ maxMergeGain =
+ FDKaacEnc_findMaxMerge(mergeGainLookUp, huffsection, maxSfb, &maxNdx);
/* exit while loop if no more gain is possible */
- if (maxMergeGain <= 0)
- break;
+ if (maxMergeGain <= 0) break;
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
/* merge sections with maximum bit gain */
huffsection[maxNdx].sfbCnt += huffsection[maxNdxNext].sfbCnt;
- huffsection[maxNdx].sectionBits += huffsection[maxNdxNext].sectionBits - maxMergeGain;
+ huffsection[maxNdx].sectionBits +=
+ huffsection[maxNdxNext].sectionBits - maxMergeGain;
/* update bit look up table for merged huffsection */
FDKaacEnc_mergeBitLookUp(bitLookUp[maxNdx], bitLookUp[maxNdxNext]);
/* update mergeLookUpTable */
- if (maxNdx != 0)
- {
+ if (maxNdx != 0) {
maxNdxLast = huffsection[maxNdx - 1].sfbStart;
- mergeGainLookUp[maxNdxLast] = FDKaacEnc_CalcMergeGain(huffsection,
- bitLookUp,
- sideInfoTab,
- maxNdxLast,
- maxNdx,
- useVCB11);
-
+ mergeGainLookUp[maxNdxLast] = FDKaacEnc_CalcMergeGain(
+ huffsection, bitLookUp, sideInfoTab, maxNdxLast, maxNdx, useVCB11);
}
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
huffsection[maxNdxNext - 1].sfbStart = huffsection[maxNdx].sfbStart;
if (maxNdxNext < maxSfb)
- mergeGainLookUp[maxNdx] = FDKaacEnc_CalcMergeGain(huffsection,
- bitLookUp,
- sideInfoTab,
- maxNdx,
- maxNdxNext,
- useVCB11);
-
+ mergeGainLookUp[maxNdx] = FDKaacEnc_CalcMergeGain(
+ huffsection, bitLookUp, sideInfoTab, maxNdx, maxNdxNext, useVCB11);
}
}
/* count bits used by the noiseless coder */
static void FDKaacEnc_noiselessCounter(
- SECTION_DATA* const RESTRICT sectionData,
- INT mergeGainLookUp[MAX_SFB_LONG],
- INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
- const SHORT* const quantSpectrum,
- const UINT* const maxValueInSfb,
- const INT* const sfbOffset,
- const INT blockType,
- const INT* const noiseNrg,
- const INT* const isBook,
- const INT useVCB11
- )
-{
+ SECTION_DATA* const RESTRICT sectionData, INT mergeGainLookUp[MAX_SFB_LONG],
+ INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
+ const SHORT* const quantSpectrum, const UINT* const maxValueInSfb,
+ const INT* const sfbOffset, const INT blockType, const INT* const noiseNrg,
+ const INT* const isBook, const INT useVCB11) {
INT grpNdx, i;
- const SHORT *sideInfoTab = NULL;
- SECTION_INFO *huffsection;
+ const SHORT* sideInfoTab = NULL;
+ SECTION_INFO* huffsection;
/* use appropriate side info table */
- switch (blockType)
- {
- case LONG_WINDOW:
- case START_WINDOW:
- case STOP_WINDOW:
- sideInfoTab = FDKaacEnc_sideInfoTabLong;
- break;
- case SHORT_WINDOW:
- sideInfoTab = FDKaacEnc_sideInfoTabShort;
- break;
+ switch (blockType) {
+ case LONG_WINDOW:
+ case START_WINDOW:
+ case STOP_WINDOW:
+ default:
+ sideInfoTab = FDKaacEnc_sideInfoTabLong;
+ break;
+ case SHORT_WINDOW:
+ sideInfoTab = FDKaacEnc_sideInfoTabShort;
+ break;
}
sectionData->noOfSections = 0;
sectionData->huffmanBits = 0;
sectionData->sideInfoBits = 0;
-
- if (sectionData->maxSfbPerGroup == 0)
- return;
+ if (sectionData->maxSfbPerGroup == 0) return;
/* loop trough groups */
- for (grpNdx = 0; grpNdx < sectionData->sfbCnt; grpNdx += sectionData->sfbPerGroup)
- {
+ for (grpNdx = 0; grpNdx < sectionData->sfbCnt;
+ grpNdx += sectionData->sfbPerGroup) {
huffsection = sectionData->huffsection + sectionData->noOfSections;
/* count bits in this group */
- FDKaacEnc_buildBitLookUp(quantSpectrum,
- sectionData->maxSfbPerGroup,
- sfbOffset + grpNdx,
- maxValueInSfb + grpNdx,
- bitLookUp,
- huffsection);
+ FDKaacEnc_buildBitLookUp(quantSpectrum, sectionData->maxSfbPerGroup,
+ sfbOffset + grpNdx, maxValueInSfb + grpNdx,
+ bitLookUp, huffsection);
/* 0.Stage :Find minimum Codebooks */
- FDKaacEnc_gmStage0(huffsection, bitLookUp, sectionData->maxSfbPerGroup, noiseNrg+grpNdx, isBook+grpNdx);
+ FDKaacEnc_gmStage0(huffsection, bitLookUp, sectionData->maxSfbPerGroup,
+ noiseNrg + grpNdx, isBook + grpNdx);
/* 1.Stage :Merge all connected regions with the same code book */
- FDKaacEnc_gmStage1(huffsection, bitLookUp, sectionData->maxSfbPerGroup, sideInfoTab, useVCB11);
-
+ FDKaacEnc_gmStage1(huffsection, bitLookUp, sectionData->maxSfbPerGroup,
+ sideInfoTab, useVCB11);
/*
2.Stage
@@ -450,14 +393,8 @@ static void FDKaacEnc_noiselessCounter(
gain until no more gain is possible
*/
- FDKaacEnc_gmStage2(huffsection,
- mergeGainLookUp,
- bitLookUp,
- sectionData->maxSfbPerGroup,
- sideInfoTab,
- useVCB11);
-
-
+ FDKaacEnc_gmStage2(huffsection, mergeGainLookUp, bitLookUp,
+ sectionData->maxSfbPerGroup, sideInfoTab, useVCB11);
/*
compress output, calculate total huff and side bits
@@ -465,31 +402,33 @@ static void FDKaacEnc_noiselessCounter(
to save time, we must set it here for later use in bitenc
*/
- for (i = 0; i < sectionData->maxSfbPerGroup; i += huffsection[i].sfbCnt)
- {
- if ((huffsection[i].codeBook==CODE_BOOK_PNS_NO) ||
- (huffsection[i].codeBook==CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
- (huffsection[i].codeBook==CODE_BOOK_IS_IN_PHASE_NO))
- {
- huffsection[i].sectionBits=0;
+ for (i = 0; i < sectionData->maxSfbPerGroup; i += huffsection[i].sfbCnt) {
+ if ((huffsection[i].codeBook == CODE_BOOK_PNS_NO) ||
+ (huffsection[i].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
+ (huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
+ huffsection[i].sectionBits = 0;
} else {
- /* the sections in the sectionData are now marked with the optimal code book */
+ /* the sections in the sectionData are now marked with the optimal code
+ * book */
- FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook), useVCB11);
+ FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook),
+ useVCB11);
- sectionData->huffmanBits += huffsection[i].sectionBits - FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
+ sectionData->huffmanBits +=
+ huffsection[i].sectionBits -
+ FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
}
huffsection[i].sfbStart += grpNdx;
/* sum up side info bits (section data bits) */
- sectionData->sideInfoBits += FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
+ sectionData->sideInfoBits +=
+ FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
sectionData->huffsection[sectionData->noOfSections++] = huffsection[i];
}
}
}
-
/*******************************************************************************
functionname: FDKaacEnc_scfCount
@@ -525,80 +464,68 @@ static void FDKaacEnc_noiselessCounter(
scalfacGain (75) and the future scalefacGain (5) is 70.
********************************************************************************/
-static void FDKaacEnc_scfCount(
- const INT* const scalefacGain,
- const UINT* const maxValueInSfb,
- SECTION_DATA* const RESTRICT sectionData,
- const INT* const isScale
- )
-{
+static void FDKaacEnc_scfCount(const INT* const scalefacGain,
+ const UINT* const maxValueInSfb,
+ SECTION_DATA* const RESTRICT sectionData,
+ const INT* const isScale) {
INT i, j, k, m, n;
- INT lastValScf = 0;
- INT deltaScf = 0;
- INT found = 0;
+ INT lastValScf = 0;
+ INT deltaScf = 0;
+ INT found = 0;
INT scfSkipCounter = 0;
- INT lastValIs = 0;
+ INT lastValIs = 0;
sectionData->scalefacBits = 0;
- if (scalefacGain == NULL)
- return;
+ if (scalefacGain == NULL) return;
sectionData->firstScf = 0;
- for (i=0; i<sectionData->noOfSections; i++)
- {
- if (sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO)
- {
+ for (i = 0; i < sectionData->noOfSections; i++) {
+ if (sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO) {
sectionData->firstScf = sectionData->huffsection[i].sfbStart;
lastValScf = scalefacGain[sectionData->firstScf];
break;
}
}
- for (i=0; i<sectionData->noOfSections; i++)
- {
- if ((sectionData->huffsection[i].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
- (sectionData->huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO))
- {
+ for (i = 0; i < sectionData->noOfSections; i++) {
+ if ((sectionData->huffsection[i].codeBook ==
+ CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
+ (sectionData->huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
for (j = sectionData->huffsection[i].sfbStart;
- j < sectionData->huffsection[i].sfbStart + sectionData->huffsection[i].sfbCnt;
- j++)
- {
- INT deltaIs = isScale[j]-lastValIs;
- lastValIs = isScale[j];
- sectionData->scalefacBits+=FDKaacEnc_bitCountScalefactorDelta(deltaIs);
+ j < sectionData->huffsection[i].sfbStart +
+ sectionData->huffsection[i].sfbCnt;
+ j++) {
+ INT deltaIs = isScale[j] - lastValIs;
+ lastValIs = isScale[j];
+ sectionData->scalefacBits +=
+ FDKaacEnc_bitCountScalefactorDelta(deltaIs);
}
} /* Intensity */
else if ((sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO) &&
- (sectionData->huffsection[i].codeBook != CODE_BOOK_PNS_NO))
- {
- INT tmp = sectionData->huffsection[i].sfbStart + sectionData->huffsection[i].sfbCnt;
- for (j = sectionData->huffsection[i].sfbStart; j<tmp; j++)
- {
+ (sectionData->huffsection[i].codeBook != CODE_BOOK_PNS_NO)) {
+ INT tmp = sectionData->huffsection[i].sfbStart +
+ sectionData->huffsection[i].sfbCnt;
+ for (j = sectionData->huffsection[i].sfbStart; j < tmp; j++) {
/* check if we can repeat the last value to save bits */
- if (maxValueInSfb[j] == 0)
- {
+ if (maxValueInSfb[j] == 0) {
found = 0;
/* are scalefactors skipped? */
- if (scfSkipCounter == 0)
- {
+ if (scfSkipCounter == 0) {
/* end of section */
- if (j == (tmp - 1) )
- found = 0; /* search in other sections for maxValueInSfb != 0 */
- else
- {
+ if (j == (tmp - 1))
+ found = 0; /* search in other sections for maxValueInSfb != 0 */
+ else {
/* search in this section for the next maxValueInSfb[] != 0 */
- for (k = (j+1); k < tmp; k++)
- {
- if (maxValueInSfb[k] != 0)
- {
+ for (k = (j + 1); k < tmp; k++) {
+ if (maxValueInSfb[k] != 0) {
found = 1;
- if ( (fixp_abs(scalefacGain[k] - lastValScf)) <= CODE_BOOK_SCF_LAV)
- deltaScf = 0; /* save bits */
- else
- {
+ if ((fixp_abs(scalefacGain[k] - lastValScf)) <=
+ CODE_BOOK_SCF_LAV)
+ deltaScf = 0; /* save bits */
+ else {
/* do not save bits */
deltaScf = lastValScf - scalefacGain[j];
lastValScf = scalefacGain[j];
@@ -612,20 +539,19 @@ static void FDKaacEnc_scfCount(
}
/* search for the next maxValueInSfb[] != 0 in all other sections */
- for (m=(i+1); (m < sectionData->noOfSections) && (found == 0); m++)
- {
- if ((sectionData->huffsection[m].codeBook != CODE_BOOK_ZERO_NO) && (sectionData->huffsection[m].codeBook != CODE_BOOK_PNS_NO))
- {
- INT end = sectionData->huffsection[m].sfbStart + sectionData->huffsection[m].sfbCnt;
- for (n = sectionData->huffsection[m].sfbStart; n<end; n++)
- {
- if (maxValueInSfb[n] != 0)
- {
+ for (m = (i + 1); (m < sectionData->noOfSections) && (found == 0);
+ m++) {
+ if ((sectionData->huffsection[m].codeBook != CODE_BOOK_ZERO_NO) &&
+ (sectionData->huffsection[m].codeBook != CODE_BOOK_PNS_NO)) {
+ INT end = sectionData->huffsection[m].sfbStart +
+ sectionData->huffsection[m].sfbCnt;
+ for (n = sectionData->huffsection[m].sfbStart; n < end; n++) {
+ if (maxValueInSfb[n] != 0) {
found = 1;
- if (fixp_abs(scalefacGain[n] - lastValScf) <= CODE_BOOK_SCF_LAV)
- deltaScf = 0; /* save bits */
- else
- {
+ if (fixp_abs(scalefacGain[n] - lastValScf) <=
+ CODE_BOOK_SCF_LAV)
+ deltaScf = 0; /* save bits */
+ else {
/* do not save bits */
deltaScf = lastValScf - scalefacGain[j];
lastValScf = scalefacGain[j];
@@ -639,64 +565,29 @@ static void FDKaacEnc_scfCount(
}
}
/* no maxValueInSfb[] != 0 found */
- if (found == 0)
- {
+ if (found == 0) {
deltaScf = 0;
scfSkipCounter = 0;
}
- }
- else {
+ } else {
/* consider skipped scalefactors */
deltaScf = 0;
scfSkipCounter--;
}
- }
- else {
+ } else {
deltaScf = lastValScf - scalefacGain[j];
lastValScf = scalefacGain[j];
}
- sectionData->scalefacBits += FDKaacEnc_bitCountScalefactorDelta(deltaScf);
+ sectionData->scalefacBits +=
+ FDKaacEnc_bitCountScalefactorDelta(deltaScf);
}
}
} /* for (i=0; i<sectionData->noOfSections; i++) */
}
-#ifdef PNS_PRECOUNT_ENABLE
-/*
- preCount bits used pns
-*/
-/* estimate bits used by pns for correction of static bits */
-/* no codebook switch estimation, see AAC LD FASTENC */
-INT noisePreCount(const INT *noiseNrg, INT maxSfb)
-{
- INT noisePCMFlag = TRUE;
- INT lastValPns = 0, deltaPns;
- int i, bits=0;
-
- for (i = 0; i < maxSfb; i++) {
- if (noiseNrg[i] != NO_NOISE_PNS) {
-
- if (noisePCMFlag) {
- bits+=PNS_PCM_BITS;
- lastValPns = noiseNrg[i];
- noisePCMFlag = FALSE;
- }else {
- deltaPns = noiseNrg[i]-lastValPns;
- lastValPns = noiseNrg[i];
- bits+=FDKaacEnc_bitCountScalefactorDelta(deltaPns);
- }
- }
- }
- return ( bits );
-}
-#endif /* PNS_PRECOUNT_ENABLE */
-
/* count bits used by pns */
-static void FDKaacEnc_noiseCount(
- SECTION_DATA* const RESTRICT sectionData,
- const INT* const noiseNrg
- )
-{
+static void FDKaacEnc_noiseCount(SECTION_DATA* const RESTRICT sectionData,
+ const INT* const noiseNrg) {
INT noisePCMFlag = TRUE;
INT lastValPns = 0, deltaPns;
int i, j;
@@ -707,99 +598,66 @@ static void FDKaacEnc_noiseCount(
if (sectionData->huffsection[i].codeBook == CODE_BOOK_PNS_NO) {
int sfbStart = sectionData->huffsection[i].sfbStart;
int sfbEnd = sfbStart + sectionData->huffsection[i].sfbCnt;
- for (j=sfbStart; j<sfbEnd; j++) {
-
+ for (j = sfbStart; j < sfbEnd; j++) {
if (noisePCMFlag) {
- sectionData->noiseNrgBits+=PNS_PCM_BITS;
- lastValPns = noiseNrg[j];
+ sectionData->noiseNrgBits += PNS_PCM_BITS;
+ lastValPns = noiseNrg[j];
noisePCMFlag = FALSE;
} else {
- deltaPns = noiseNrg[j]-lastValPns;
- lastValPns = noiseNrg[j];
- sectionData->noiseNrgBits+=FDKaacEnc_bitCountScalefactorDelta(deltaPns);
+ deltaPns = noiseNrg[j] - lastValPns;
+ lastValPns = noiseNrg[j];
+ sectionData->noiseNrgBits +=
+ FDKaacEnc_bitCountScalefactorDelta(deltaPns);
}
}
}
}
}
-INT FDKaacEnc_dynBitCount(
- BITCNTR_STATE* const hBC,
- const SHORT* const quantSpectrum,
- const UINT* const maxValueInSfb,
- const INT* const scalefac,
- const INT blockType,
- const INT sfbCnt,
- const INT maxSfbPerGroup,
- const INT sfbPerGroup,
- const INT* const sfbOffset,
- SECTION_DATA* const RESTRICT sectionData,
- const INT* const noiseNrg,
- const INT* const isBook,
- const INT* const isScale,
- const UINT syntaxFlags
- )
-{
- sectionData->blockType = blockType;
- sectionData->sfbCnt = sfbCnt;
- sectionData->sfbPerGroup = sfbPerGroup;
- sectionData->noOfGroups = sfbCnt / sfbPerGroup;
+INT FDKaacEnc_dynBitCount(BITCNTR_STATE* const hBC,
+ const SHORT* const quantSpectrum,
+ const UINT* const maxValueInSfb,
+ const INT* const scalefac, const INT blockType,
+ const INT sfbCnt, const INT maxSfbPerGroup,
+ const INT sfbPerGroup, const INT* const sfbOffset,
+ SECTION_DATA* const RESTRICT sectionData,
+ const INT* const noiseNrg, const INT* const isBook,
+ const INT* const isScale, const UINT syntaxFlags) {
+ sectionData->blockType = blockType;
+ sectionData->sfbCnt = sfbCnt;
+ sectionData->sfbPerGroup = sfbPerGroup;
+ sectionData->noOfGroups = sfbCnt / sfbPerGroup;
sectionData->maxSfbPerGroup = maxSfbPerGroup;
- FDKaacEnc_noiselessCounter(
- sectionData,
- hBC->mergeGainLookUp,
- (lookUpTable)hBC->bitLookUp,
- quantSpectrum,
- maxValueInSfb,
- sfbOffset,
- blockType,
- noiseNrg,
- isBook,
- (syntaxFlags & AC_ER_VCB11)?1:0);
-
- FDKaacEnc_scfCount(
- scalefac,
- maxValueInSfb,
- sectionData,
- isScale);
-
- FDKaacEnc_noiseCount(sectionData,
- noiseNrg);
-
- return (sectionData->huffmanBits +
- sectionData->sideInfoBits +
- sectionData->scalefacBits +
- sectionData->noiseNrgBits);
+ FDKaacEnc_noiselessCounter(sectionData, hBC->mergeGainLookUp,
+ (lookUpTable)hBC->bitLookUp, quantSpectrum,
+ maxValueInSfb, sfbOffset, blockType, noiseNrg,
+ isBook, (syntaxFlags & AC_ER_VCB11) ? 1 : 0);
+
+ FDKaacEnc_scfCount(scalefac, maxValueInSfb, sectionData, isScale);
+
+ FDKaacEnc_noiseCount(sectionData, noiseNrg);
+
+ return (sectionData->huffmanBits + sectionData->sideInfoBits +
+ sectionData->scalefacBits + sectionData->noiseNrgBits);
}
-INT FDKaacEnc_BCNew(BITCNTR_STATE **phBC
- ,UCHAR* dynamic_RAM
- )
-{
- BITCNTR_STATE *hBC = GetRam_aacEnc_BitCntrState();
+INT FDKaacEnc_BCNew(BITCNTR_STATE** phBC, UCHAR* dynamic_RAM) {
+ BITCNTR_STATE* hBC = GetRam_aacEnc_BitCntrState();
- if (hBC)
- {
+ if (hBC) {
*phBC = hBC;
- hBC->bitLookUp = GetRam_aacEnc_BitLookUp(0,dynamic_RAM);
- hBC->mergeGainLookUp = GetRam_aacEnc_MergeGainLookUp(0,dynamic_RAM);
- if (hBC->bitLookUp == 0 ||
- hBC->mergeGainLookUp == 0)
- {
+ hBC->bitLookUp = GetRam_aacEnc_BitLookUp(0, dynamic_RAM);
+ hBC->mergeGainLookUp = GetRam_aacEnc_MergeGainLookUp(0, dynamic_RAM);
+ if (hBC->bitLookUp == 0 || hBC->mergeGainLookUp == 0) {
return 1;
}
}
return (hBC == 0) ? 1 : 0;
}
-void FDKaacEnc_BCClose(BITCNTR_STATE **phBC)
-{
- if (*phBC!=NULL) {
-
+void FDKaacEnc_BCClose(BITCNTR_STATE** phBC) {
+ if (*phBC != NULL) {
FreeRam_aacEnc_BitCntrState(phBC);
}
}
-
-
-