generic-library/fdk-aac
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Bug fixes in AAC decoder, AAC encoder, FDK library

Browse Source 
Latest code drop from Fraunhofer:

* AAC-Decoder

   - Expanded AAC-LD/ELD decoder TNS max band tables to avoid wrong data
     access for sampling rates <22kHz and >48kHz.
     Modified file(s):
        libAACdec\src\aacdec_tns.cpp
        libAACdec\src\aac_rom.h
        libAACdec\src\aac_rom.cpp

  - Fixed ELD synthesis QMF filterbank scaling for downsampled SBR.
    Modified file(s):
        libFDK\src\qmf.cpp

* AAC-Encoder

  - Fixed bit rate limiting for lower limit as introduced in the Delivery 2012-05-11.
    Modified file(s):
        libAACenc\include\aacenc_lib.h
        libAACenc\src\aacenc.h
        libAACenc\src\aacenc.cpp
        libSBRenc\src\sbr_rom.h
        libSBRenc\src\sbr_rom.cpp

  - Allow negative prediction gain as meaning that there is no coding gain.
    Make use of scaleValueSaturate in gauss window calculation.
    Modified file(s):
        libAACenc\src\aacenc_tns.cpp

  - Added energy saturation to prevent overflow in short blocks.
    Modified file(s):
        libAACenc\src\grp_data.cpp

  - Perform scalefactor adaption in case quantized lines are out of valid range.
    Modified file(s):
        libAACenc\src\quantize.cpp

  - Interrupt quantization loop when no spectral data is available.
    Adjustments in bitreservoir adaption.
    Modified file(s):
        libAACenc\src\qc_main.cpp

  - Indroduced dynamic scaling in none missing harmonic energy lowering compensation.
    Modified file(s):
        libSBRenc\src\env_est.cpp

* FDK-Library

  - Fixed saturation for negative values in scaleValueSaturate.
    Modified file(s):
        libFDK\include\scale.h

Change-Id: If830ea65caef6b5554281e4b7a77a8b2e08825ce
This commit is contained in:
Jean-Michel Trivi 2012-09-09 11:48:51 -07:00
parent fef220869b
commit 381d69840a
28 changed files with 4487 additions and 4583 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2435
documentation/aacDecoder.pdf
View File

File diff suppressed because it is too large Load Diff

6255
documentation/aacEncoder.pdf
View File

File diff suppressed because it is too large Load Diff

30
libAACdec/src/aac_rom.cpp
View File

@ -1729,20 +1729,36 @@ const UCHAR tns_max_bands_tbl[13][2] =
{ 39, 14 }, /* 7350 */
};
/* TNS_MAX_BANDS for low delay. The array index is sampleRateIndex-3 */
const UCHAR tns_max_bands_tbl_480[5] = {
31, /* 48000 */
/* TNS_MAX_BANDS for low delay. The array index is the sampleRateIndex */
const UCHAR tns_max_bands_tbl_480[13] = {
31, /* 96000 */
31, /* 88200 */
31, /* 64000 */
31, /* 48000 */
32, /* 44100 */
37, /* 32000 */
30, /* 24000 */
30 /* 22050 */
30, /* 22050 */
30, /* 16000 */
30, /* 12000 */
30, /* 11025 */
30, /* 8000 */
30 /* 7350 */
};
const UCHAR tns_max_bands_tbl_512[5] = {
31, /* 48000 */
const UCHAR tns_max_bands_tbl_512[13] = {
31, /* 96000 */
31, /* 88200 */
31, /* 64000 */
31, /* 48000 */
32, /* 44100 */
37, /* 32000 */
31, /* 24000 */
31 /* 22050 */
31, /* 22050 */
31, /* 16000 */
31, /* 12000 */
31, /* 11025 */
31, /* 8000 */
31 /* 7350 */
};
#define TCC(x) (FIXP_DBL(x))

4
libAACdec/src/aac_rom.h
View File

@ -164,8 +164,8 @@ extern const UINT aHuffTreeRvlCodewds[];
extern const UCHAR tns_max_bands_tbl[13][2];
extern const UCHAR tns_max_bands_tbl_480[5];
extern const UCHAR tns_max_bands_tbl_512[5];
extern const UCHAR tns_max_bands_tbl_480[13];
extern const UCHAR tns_max_bands_tbl_512[13];
#define FIXP_TCC FIXP_DBL

4
libAACdec/src/aacdec_tns.cpp
View File

@ -374,10 +374,10 @@ void CTns_Apply (
switch (granuleLength) {
case 480:
tns_max_bands = tns_max_bands_tbl_480[pSamplingRateInfo->samplingRateIndex-3];
tns_max_bands = tns_max_bands_tbl_480[pSamplingRateInfo->samplingRateIndex];
break;
case 512:
tns_max_bands = tns_max_bands_tbl_512[pSamplingRateInfo->samplingRateIndex-3];
tns_max_bands = tns_max_bands_tbl_512[pSamplingRateInfo->samplingRateIndex];
break;
default:
tns_max_bands = GetMaximumTnsBands(pIcsInfo, pSamplingRateInfo->samplingRateIndex);

2
libAACdec/src/aacdecoder_lib.cpp
View File

@ -110,7 +110,7 @@ amm-info@iis.fraunhofer.de
/* Decoder library info */
#define AACDECODER_LIB_VL0 2
#define AACDECODER_LIB_VL1 4
#define AACDECODER_LIB_VL2 4
#define AACDECODER_LIB_VL2 5
#define AACDECODER_LIB_TITLE "AAC Decoder Lib"
#define AACDECODER_LIB_BUILD_DATE __DATE__
#define AACDECODER_LIB_BUILD_TIME __TIME__

95
libAACenc/include/aacenc_lib.h
View File

@ -424,102 +424,11 @@ For HE-AAC and HE-AAC v2 the lowest possible audio input sampling frequency is 1
AAC-LC core encoder operates in dual rate mode at its lowest possible sampling frequency, which is 8 kHz.
HE-AAC v2 requires stereo input audio data.
The following table lists the supported bitrates for AAC-LC, HE-AAC and HE-AAC v2 encoding depending
on input sampling frequency ("Hz") and number of input channels ("chan"). The minimum and maximum
allowed bitrate ("BR Min", "BR Max") is given in bits per second.
In case the desired combination of bitrate and sampling frequency is not available ("NA") for HE-AAC or
HE-AAC v2 then the encoder will automatically switch to AAC-LC and give a command line warning.
Please note that in HE-AAC or HE-AAC v2 mode the encoder supports much higher bitrates than are
appropriate for HE-AAC or HE-AAC v2. For example, at a bitrate of more than 64 kbit/s for a stereo
audio signal at 44.1 kHz it usually makes sense to use AAC-LC, which will produce better audio
quality at that bitrate than HE-AAC or HE-AAC v2.
\verbatim
Config AAC-LC HE-AAC (SBR) HE-AACv2 (SBR+PS)
Hz chan BR Min BR Max BR Min BR Max BR Min BR Max
8000 1 758 48000 NA NA NA NA
11025 1 1045 66150 NA NA NA NA
12000 1 1137 72000 NA NA NA NA
16000 1 1516 96000 8000 48000 NA NA
22050 1 2089 132300 8000 64000 NA NA
24000 1 2274 144000 8000 64000 NA NA
32000 1 3032 192000 8000 64000 NA NA
44100 1 4178 264576 8000 64000 NA NA
48000 1 4547 288000 12000 64000 NA NA
64000 1 6063 384000 24000 160000 NA NA
88200 1 8355 529200 24000 160000 NA NA
96000 1 9094 576000 24000 160000 NA NA
-----------------------------------------------------------------------------------
8000 2 1071 96000 NA NA NA NA
11025 2 1476 132300 NA NA NA NA
12000 2 1606 144000 NA NA NA NA
16000 2 2141 192000 16000 96000 8000 48000
22050 2 2951 264600 16000 128000 8000 64000
24000 2 3211 288000 16000 128000 8000 64000
32000 2 4282 384000 16000 128000 8000 64000
44100 2 5900 529152 16000 128000 8000 64000
48000 2 6422 576000 16000 128000 12000 64000
64000 2 8563 768000 32000 256000 24000 160000
88200 2 11801 1058400 32000 256000 24000 160000
96000 2 12844 1152000 32000 256000 24000 160000
-----------------------------------------------------------------------------------
8000 3 1383 144000 NA NA NA NA
11025 3 1906 198450 NA NA NA NA
12000 3 2075 216000 NA NA NA NA
16000 3 2766 288000 26667 120000 NA NA
22050 3 3812 396900 26667 160000 NA NA
24000 3 4149 432000 26667 160000 NA NA
32000 3 5532 576000 26667 160000 NA NA
44100 3 7623 793728 26667 160000 NA NA
48000 3 8297 864000 29996 160000 NA NA
64000 3 11063 1152000 59996 400000 NA NA
88200 3 15246 1587600 59996 400000 NA NA
96000 3 16594 1728000 59996 400000 NA NA
-----------------------------------------------------------------------------------
8000 4 1696 192000 NA NA NA NA
11025 4 2337 264600 NA NA NA NA
12000 4 2543 288000 NA NA NA NA
16000 4 3391 384000 40000 160000 NA NA
22050 4 4673 529200 40000 213330 NA NA
24000 4 5086 576000 40000 213330 NA NA
32000 4 6782 768000 40000 213330 NA NA
44100 4 9345 1058304 40000 213330 NA NA
48000 4 10172 1152000 40000 213330 NA NA
64000 4 13563 1536000 80000 533330 NA NA
88200 4 18691 2116800 80000 533330 NA NA
96000 4 20344 2304000 80000 533330 NA NA
-----------------------------------------------------------------------------------
8000 5 2008 240000 NA NA NA NA
11025 5 2768 330750 NA NA NA NA
12000 5 3012 360000 NA NA NA NA
16000 5 4016 480000 43244 184612 NA NA
22050 5 5535 661500 43244 246152 NA NA
24000 5 6024 720000 43244 246152 NA NA
32000 5 8032 960000 43244 246152 NA NA
44100 5 11068 1322880 43244 246152 NA NA
48000 5 12047 1440000 46140 246152 NA NA
64000 5 16063 1920000 92296 615384 NA NA
88200 5 22137 2646000 92296 615384 NA NA
96000 5 24094 2880000 92296 615384 NA NA
-----------------------------------------------------------------------------------
8000 5.1 2321 240000 NA NA NA NA
11025 5.1 3198 330750 NA NA NA NA
12000 5.1 3481 360000 NA NA NA NA
16000 5.1 4641 480000 45715 199990 NA NA
22050 5.1 6396 661500 45715 266658 NA NA
24000 5.1 6961 720000 45715 266658 NA NA
32000 5.1 9282 960000 45715 266658 NA NA
44100 5.1 12790 1322880 45715 266658 NA NA
48000 5.1 13922 1440000 49982 266658 NA NA
64000 5.1 18563 1920000 99982 666658 NA NA
88200 5.1 25582 2646000 99982 666658 NA NA
96000 5.1 27844 2880000 99982 666658 NA NA
\endverbatim \n
\section reommendedConfig Recommended Sampling Rate and Bitrate Combinations
The following table provides an overview of recommended encoder configuration parameters
@ -956,8 +865,8 @@ typedef enum
AACENC_GRANULE_LENGTH = 0x0105, /*!< Core encoder (AAC) audio frame length in samples:
- 1024: Default configuration.
- 512: Optional length in LD/ELD configuration.
- 480: Default LD/ELD configuration. */
- 512: Default LD/ELD configuration.
- 480: Optional length in LD/ELD configuration. */
AACENC_CHANNELMODE = 0x0106, /*!< Set explicit channel mode. Channel mode must match with number of input channels.
- 1-6: MPEG channel modes supported, see ::CHANNEL_MODE in FDK_audio.h. */

11
libAACenc/src/aacenc.cpp
View File

@ -149,7 +149,7 @@ INT FDKaacEnc_LimitBitrate(
transportBits = 208;
}
bitRate = FDKmax(bitRate, ((((40 * nChannels) + transportBits + frameLength) * (coreSamplingRate)) / frameLength) );
bitRate = FDKmax(bitRate, ((((40 * nChannels) + transportBits) * (coreSamplingRate)) / frameLength) );
FDK_ASSERT(bitRate >= 0);
bitRate = FDKmin(bitRate, ((nChannelsEff * MIN_BUFSIZE_PER_EFF_CHAN)*(coreSamplingRate>>shift)) / (frameLength>>shift)) ;
@ -280,7 +280,7 @@ void FDKaacEnc_AacInitDefaultConfig(AACENC_CONFIG *config)
config->useTns = TNS_ENABLE_MASK; /* tns enabled completly */
config->usePns = 1; /* depending on channelBitrate this might be set to 0 later */
config->useIS = 1; /* Intensity Stereo Configuration */
config->framelength = DEFAULT_FRAMELENGTH; /* used frame size */
config->framelength = -1; /* Framesize not configured */
config->syntaxFlags = 0; /* default syntax with no specialities */
config->epConfig = -1; /* no ER syntax -> no additional error protection */
config->nSubFrames = 1; /* default, no sub frames */
@ -451,11 +451,8 @@ AAC_ENCODER_ERROR FDKaacEnc_Initialize(HANDLE_AAC_ENC hAacEnc,
switch (config->framelength)
{
case 1024:
if ( config->audioObjectType != AOT_AAC_LC
&& config->audioObjectType != AOT_SBR
&& config->audioObjectType != AOT_PS
&& config->audioObjectType != AOT_ER_AAC_LC
&& config->audioObjectType != AOT_AAC_SCAL )
if ( config->audioObjectType == AOT_ER_AAC_LD
|| config->audioObjectType == AOT_ER_AAC_ELD )
{
return AAC_ENC_INVALID_FRAME_LENGTH;
}

1
libAACenc/src/aacenc.h
View File

@ -153,7 +153,6 @@ typedef enum {
/*-------------------------- defines --------------------------------------*/
#define ANC_DATA_BUFFERSIZE 1024 /* ancBuffer size */
#define DEFAULT_FRAMELENGTH 1024 /* size of AAC core frame in (new) PCM samples */
#define MAX_TOTAL_EXT_PAYLOADS (((6) * (1)) + (2+2))

2
libAACenc/src/aacenc_lib.cpp
View File

@ -98,7 +98,7 @@ amm-info@iis.fraunhofer.de
/* Encoder library info */
#define AACENCODER_LIB_VL0 3
#define AACENCODER_LIB_VL1 3
#define AACENCODER_LIB_VL2 1
#define AACENCODER_LIB_VL2 2
#define AACENCODER_LIB_TITLE "AAC Encoder"
#define AACENCODER_LIB_BUILD_DATE __DATE__
#define AACENCODER_LIB_BUILD_TIME __TIME__

23
libAACenc/src/aacenc_tns.cpp
View File

@ -1067,11 +1067,11 @@ static void FDKaacEnc_CalcGaussWindow(
const INT timeResolution_e
)
{
#define PI_SCALE (2)
#define PI_FIX FL2FXCONST_DBL(3.1416f/(float)(1<<PI_SCALE))
#define PI_E (2)
#define PI_M FL2FXCONST_DBL(3.1416f/(float)(1<<PI_E))
#define EULER_SCALE (2)
#define EULER_FIX FL2FXCONST_DBL(2.7183/(float)(1<<EULER_SCALE))
#define EULER_E (2)
#define EULER_M FL2FXCONST_DBL(2.7183/(float)(1<<EULER_E))
#define COEFF_LOOP_SCALE (4)
@ -1083,9 +1083,9 @@ static void FDKaacEnc_CalcGaussWindow(
* gaussExp = PI * samplingRate * 0.001f * timeResolution / transformResolution;
* gaussExp = -0.5f * gaussExp * gaussExp;
*/
gaussExp_m = fMultNorm(timeResolution, fMult(PI_FIX, fDivNorm( (FIXP_DBL)(samplingRate), (FIXP_DBL)(LONG)(transformResolution*1000.f), &e1)), &e2);
gaussExp_m = fMultNorm(timeResolution, fMult(PI_M, fDivNorm( (FIXP_DBL)(samplingRate), (FIXP_DBL)(LONG)(transformResolution*1000.f), &e1)), &e2);
gaussExp_m = -fPow2Div2(gaussExp_m);
gaussExp_e = 2*(e1+e2+timeResolution_e+PI_SCALE);
gaussExp_e = 2*(e1+e2+timeResolution_e+PI_E);
FDK_ASSERT( winSize < (1<<COEFF_LOOP_SCALE) );
@ -1095,13 +1095,13 @@ static void FDKaacEnc_CalcGaussWindow(
for( i=0; i<winSize; i++) {
win[i] = fPow(
EULER_FIX,
EULER_SCALE,
EULER_M,
EULER_E,
fMult(gaussExp_m, fPow2((i*FL2FXCONST_DBL(1.f/(float)(1<<COEFF_LOOP_SCALE)) + FL2FXCONST_DBL(.5f/(float)(1<<COEFF_LOOP_SCALE))))),
gaussExp_e + 2*COEFF_LOOP_SCALE,
&e1);
win[i] = scaleValue(win[i], e1);
win[i] = scaleValueSaturate(win[i], e1);
}
}
@ -1157,7 +1157,10 @@ static INT FDKaacEnc_AutoToParcor(
workBuffer++;
}
tmp = fMult((FIXP_DBL)((LONG)TNS_PREDGAIN_SCALE<<21), fDivNorm(autoCorr_0, input[0], &scale));
tmp = fMult((FIXP_DBL)((LONG)TNS_PREDGAIN_SCALE<<21), fDivNorm(fAbs(autoCorr_0), fAbs(input[0]), &scale));
if ( fMultDiv2(autoCorr_0, input[0])<FL2FXCONST_DBL(0.0f) ) {
tmp = -tmp;
}
predictionGain = (LONG)scaleValue(tmp,scale-21);
return (predictionGain);

12
libAACenc/src/grp_data.cpp
View File

@ -94,6 +94,10 @@ amm-info@iis.fraunhofer.de
* this routine does not work in-place
*/
static inline FIXP_DBL nrgAddSaturate(const FIXP_DBL a, const FIXP_DBL b) {
return ( (a>=(FIXP_DBL)MAXVAL_DBL-b) ? (FIXP_DBL)MAXVAL_DBL : (a + b) );
}
void
FDKaacEnc_groupShortData(FIXP_DBL *mdctSpectrum, /* in-out */
SFB_THRESHOLD *sfbThreshold, /* in-out */
@ -177,7 +181,7 @@ FDKaacEnc_groupShortData(FIXP_DBL *mdctSpectrum, /* in-out
FIXP_DBL thresh = sfbThreshold->Short[wnd][sfb];
for (j=1; j<groupLen[grp]; j++)
{
thresh += sfbThreshold->Short[wnd+j][sfb];
thresh = nrgAddSaturate(thresh, sfbThreshold->Short[wnd+j][sfb]);
}
sfbThreshold->Long[i++] = thresh;
}
@ -195,7 +199,7 @@ FDKaacEnc_groupShortData(FIXP_DBL *mdctSpectrum, /* in-out
FIXP_DBL energy = sfbEnergy->Short[wnd][sfb];
for (j=1; j<groupLen[grp]; j++)
{
energy += sfbEnergy->Short[wnd+j][sfb];
energy = nrgAddSaturate(energy, sfbEnergy->Short[wnd+j][sfb]);
}
sfbEnergy->Long[i++] = energy;
}
@ -213,7 +217,7 @@ FDKaacEnc_groupShortData(FIXP_DBL *mdctSpectrum, /* in-out
FIXP_DBL energy = sfbEnergyMS->Short[wnd][sfb];
for (j=1; j<groupLen[grp]; j++)
{
energy += sfbEnergyMS->Short[wnd+j][sfb];
energy = nrgAddSaturate(energy, sfbEnergyMS->Short[wnd+j][sfb]);
}
sfbEnergyMS->Long[i++] = energy;
}
@ -231,7 +235,7 @@ FDKaacEnc_groupShortData(FIXP_DBL *mdctSpectrum, /* in-out
FIXP_DBL energy = sfbSpreadEnergy->Short[wnd][sfb];
for (j=1; j<groupLen[grp]; j++)
{
energy += sfbSpreadEnergy->Short[wnd+j][sfb];
energy = nrgAddSaturate(energy, sfbSpreadEnergy->Short[wnd+j][sfb]);
}
sfbSpreadEnergy->Long[i++] = energy;
}

54
libAACenc/src/qc_main.cpp
View File

@ -797,7 +797,7 @@ AAC_ENCODER_ERROR FDKaacEnc_QCMain(QC_STATE* RESTRICT hQC,
{
int i, c;
AAC_ENCODER_ERROR ErrorStatus = AAC_ENC_OK;
INT avgTotalDynBits = 0; /* maximal allowd dynamic bits for all frames */
INT avgTotalDynBits = 0; /* maximal allowed dynamic bits for all frames */
INT totalAvailableBits = 0;
INT nSubFrames = 1;
@ -1092,7 +1092,7 @@ AAC_ENCODER_ERROR FDKaacEnc_QCMain(QC_STATE* RESTRICT hQC,
int sumBitsConsumedTotal = FDKaacEnc_getTotalConsumedBits(qcOut, qcElement, cm, hQC->globHdrBits, nSubFrames);
/* in all frames are valid dynamic bits */
if (sumBitsConsumedTotal < totalAvailableBits && (decreaseBitConsumption==1) && checkMinFrameBitsDemand(qcOut,hQC->minBitsPerFrame,nSubFrames)
if ( ((sumBitsConsumedTotal < totalAvailableBits) || qcOut[c]->usedDynBits==0) && (decreaseBitConsumption==1) && checkMinFrameBitsDemand(qcOut,hQC->minBitsPerFrame,nSubFrames)
/*()*/ )
{
quantizationDone = 1; /* exit bit adjustment */
@ -1365,42 +1365,54 @@ AAC_ENCODER_ERROR FDKaacEnc_FinalizeBitConsumption(CHANNEL_MAPPING *cm,
QC_OUT_EXTENSION fillExtPayload;
INT totFillBits, alignBits;
{
int exactTpBits;
int max_iter = 3;
/* Get total consumed bits in AU */
qcOut->totalBits = qcOut->staticBits + qcOut->usedDynBits + qcOut->totFillBits +
qcOut->elementExtBits + qcOut->globalExtBits;
/* Get total consumed bits in AU */
qcOut->totalBits = qcOut->staticBits + qcOut->usedDynBits + qcOut->totFillBits +
qcOut->elementExtBits + qcOut->globalExtBits;
if (qcKernel->bitrateMode==QCDATA_BR_MODE_CBR) {
/* Now we can get the exact transport bit amount, and hopefully it is equal to the estimated value */
exactTpBits = transportEnc_GetStaticBits(hTpEnc, qcOut->totalBits);
INT exactTpBits = transportEnc_GetStaticBits(hTpEnc, qcOut->totalBits);
if (exactTpBits != qcKernel->globHdrBits) {
INT diffFillBits = 0;
/* How many bits can be taken by bitreservoir */
const INT bitresSpace = qcKernel->bitResTotMax - (qcKernel->bitResTot + (qcOut->grantedDynBits - (qcOut->usedDynBits + qcOut->totFillBits) ) );
/* Number of bits which can be moved to bitreservoir. */
INT bitsToBitres = qcKernel->globHdrBits - exactTpBits;
const INT bitsToBitres = qcKernel->globHdrBits - exactTpBits;
FDK_ASSERT(bitsToBitres>=0); /* is always positive */
if (bitsToBitres>0) {
/* if bitreservoir can not take all bits, move ramaining bits to fillbits */
diffFillBits = FDKmax(0, bitsToBitres - (qcKernel->bitResTotMax-qcKernel->bitResTot));
}
else if (bitsToBitres<0) {
/* if bits mus be taken from bitreservoir, reduce fillbits first. */
diffFillBits = (FDKmax(FDKmax(bitsToBitres, -qcKernel->bitResTot), -qcOut->totFillBits));
}
/* If bitreservoir can not take all bits, move ramaining bits to fillbits */
diffFillBits = FDKmax(0, bitsToBitres - bitresSpace);
diffFillBits = (diffFillBits+7)&~7; /* assure previous alignment */
/* Assure previous alignment */
diffFillBits = (diffFillBits+7)&~7;
/* Move as many bits as possible to bitreservoir */
qcKernel->bitResTot += (bitsToBitres-diffFillBits);
/* Write remaing bits as fill bits */
qcOut->totFillBits += diffFillBits;
qcOut->totalBits += diffFillBits;
qcOut->grantedDynBits += diffFillBits;
/* new header bits */
/* Get new header bits */
qcKernel->globHdrBits = transportEnc_GetStaticBits(hTpEnc, qcOut->totalBits);
if (qcKernel->globHdrBits != exactTpBits) {
/* In previous step, fill bits and corresponding total bits were changed when bitreservoir was completely filled.
Now we can take the too much taken bits caused by header overhead from bitreservoir.
*/
qcKernel->bitResTot -= (qcKernel->globHdrBits - exactTpBits);
}
}
}
} /* MODE_CBR */
/* Update exact number of consumed header bits. */
qcKernel->globHdrBits = transportEnc_GetStaticBits(hTpEnc, qcOut->totalBits);
/* Save total fill bits and distribut to alignment and fill bits */
totFillBits = qcOut->totFillBits;

32
libAACenc/src/quantize.cpp
View File

@ -127,10 +127,7 @@ static void FDKaacEnc_quantizeLines(INT gain,
accu = fMultDiv2(FDKaacEnc_mTab_3_4[tabIndex],FDKaacEnc_quantTableE[totalShift&3]);
totalShift = (16-4)-(3*(totalShift>>2));
FDK_ASSERT(totalShift >=0); /* MAX_QUANT_VIOLATION */
if (totalShift < 32)
accu>>=totalShift;
else
accu = 0;
accu>>=totalShift;
quaSpectrum[line] = (SHORT)(-((LONG)(k + accu) >> (DFRACT_BITS-1-16)));
}
else if(accu > FL2FXCONST_DBL(0.0f))
@ -143,10 +140,7 @@ static void FDKaacEnc_quantizeLines(INT gain,
accu = fMultDiv2(FDKaacEnc_mTab_3_4[tabIndex],FDKaacEnc_quantTableE[totalShift&3]);
totalShift = (16-4)-(3*(totalShift>>2));
FDK_ASSERT(totalShift >=0); /* MAX_QUANT_VIOLATION */
if (totalShift < 32)
accu>>=totalShift;
else
accu = 0;
accu>>=totalShift;
quaSpectrum[line] = (SHORT)((LONG)(k + accu) >> (DFRACT_BITS-1-16));
}
else
@ -319,6 +313,9 @@ FIXP_DBL FDKaacEnc_calcSfbDist(FIXP_DBL *mdctSpectrum,
&mdctSpectrum[i],
&quantSpectrum[i]);
if (fAbs(quantSpectrum[i])>MAX_QUANT) {
return FL2FXCONST_DBL(0.0f);
}
/* inverse quantization */
FDKaacEnc_invQuantizeLines(gain,1,&quantSpectrum[i],&invQuantSpec);
@ -361,15 +358,22 @@ void FDKaacEnc_calcSfbQuantEnergyAndDist(FIXP_DBL *mdctSpectrum,
FIXP_DBL invQuantSpec;
FIXP_DBL diff;
*en = FL2FXCONST_DBL(0.0f);
*dist = FL2FXCONST_DBL(0.0f);
FIXP_DBL energy = FL2FXCONST_DBL(0.0f);
FIXP_DBL distortion = FL2FXCONST_DBL(0.0f);
for (i=0; i<noOfLines; i++) {
if (fAbs(quantSpectrum[i])>MAX_QUANT) {
*en = FL2FXCONST_DBL(0.0f);
*dist = FL2FXCONST_DBL(0.0f);
return;
}
/* inverse quantization */
FDKaacEnc_invQuantizeLines(gain,1,&quantSpectrum[i],&invQuantSpec);
/* energy */
*en += fPow2(invQuantSpec);
energy += fPow2(invQuantSpec);
/* dist */
diff = fixp_abs(fixp_abs(invQuantSpec) - fixp_abs(mdctSpectrum[i]>>1));
@ -382,10 +386,10 @@ void FDKaacEnc_calcSfbQuantEnergyAndDist(FIXP_DBL *mdctSpectrum,
diff = scaleValue(diff, -scale);
*dist += diff;
distortion += diff;
}
*en = CalcLdData(*en)+FL2FXCONST_DBL(0.03125f);
*dist = CalcLdData(*dist);
*en = CalcLdData(energy)+FL2FXCONST_DBL(0.03125f);
*dist = CalcLdData(distortion);
}

2
libFDK/include/common_fix.h
View File

@ -225,7 +225,6 @@ FDK_INLINE FIXP_DBL fAbs(FIXP_DBL x)
FDK_INLINE FIXP_SGL fAbs(FIXP_SGL x)
{ return fixabs_S(x); }
/* workaround for TI C6x compiler but not for TI ARM9E compiler */
#if (!defined(__TI_COMPILER_VERSION__) || defined(__TI_TMS470_V5__)) && !defined(__x86_64__)
FDK_INLINE INT fAbs(INT x)
@ -336,7 +335,6 @@ FDK_INLINE FIXP_SGL fMin(FIXP_SGL a, FIXP_SGL b)
FDK_INLINE FIXP_SGL fMax(FIXP_SGL a, FIXP_SGL b)
{ return fixmax_S(a,b); }
/* workaround for TI C6x compiler but not for TI ARM9E */
#if ((!defined(__TI_COMPILER_VERSION__) || defined(__TI_TMS470_V5__)) && !defined(__x86_64__)) || (FIX_FRACT == 1)
FDK_INLINE INT fMax(INT a, INT b)

28
libFDK/include/mips/cplx_mul.h
View File

@ -108,9 +108,20 @@ inline void cplxMultDiv2( FIXP_DBL *c_Re,
FIXP_DBL b_Im)
{
INT result;
result = (((long long)a_Re * b_Re) - ((long long) a_Im * b_Im)) >> 32;
__asm__ ("mult %[a_Re], %[b_Re];\n"
"msub %[a_Im], %[b_Im];\n"
: "=hi"(result)
: [a_Re]"r"(a_Re), [b_Re]"r"(b_Re), [a_Im]"r"(a_Im), [b_Im]"r"(b_Im)
: "lo");
*c_Re = result;
result = (((long long)a_Re * b_Im) - ((long long) a_Im * b_Re)) >> 32;
__asm__ ("mult %[a_Re], %[b_Im];\n"
"madd %[a_Im], %[b_Re];\n"
: "=hi"(result)
: [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
: "lo");
*c_Im = result;
}
#endif
@ -124,9 +135,18 @@ inline void cplxMult( FIXP_DBL *c_Re,
FIXP_DBL b_Im)
{
INT result;
result = (((long long)a_Re * b_Re) - ((long long) a_Im * b_Im)) >> 32;
__asm__ ("mult %[a_Re], %[b_Re];\n"
"msub %[a_Im], %[b_Im];\n"
: "=hi"(result)
: [a_Re]"r"(a_Re), [b_Re]"r"(b_Re), [a_Im]"r"(a_Im), [b_Im]"r"(b_Im)
: "lo");
*c_Re = result<<1;
result = (((long long)a_Re * b_Im) - ((long long) a_Im * b_Re)) >> 32;
__asm__ ("mult %[a_Re], %[b_Im];\n"
"madd %[a_Im], %[b_Re];\n"
: "=hi"(result)
: [a_Re]"r"(a_Re), [b_Im]"r"(b_Im), [a_Im]"r"(a_Im), [b_Re]"r"(b_Re)
: "lo");
*c_Im = result<<1;
}
#endif

8
libFDK/include/mips/fixmul_mips.h
View File

@ -100,8 +100,14 @@ amm-info@iis.fraunhofer.de
inline INT fixmuldiv2_DD (const INT a, const INT b)
{
INT result ;
return ((long long) a * b) >> 32;
asm ("mult %1,%2;\n"
: "=hi" (result)
: "d" (a), "r" (b)
: "lo");
return result ;
}
#endif /* (__GNUC__) && defined(__mips__) */

10
libFDK/include/scale.h
View File

@ -148,12 +148,20 @@ FIXP_DBL scaleValueSaturate(
{
if(scalefactor > 0) {
if (fNorm(value) < scalefactor && value != (FIXP_DBL)0) {
return (FIXP_DBL)MAXVAL_DBL;
if (value > (FIXP_DBL)0) {
return (FIXP_DBL)MAXVAL_DBL;
} else {
return (FIXP_DBL)MINVAL_DBL;
}
} else {
return (value<<scalefactor);
}
} else {
if (-(DFRACT_BITS-1) > scalefactor) {
return (FIXP_DBL)0;
} else {
return (value>>(-scalefactor));
}
}
}
#endif

2
libFDK/src/FDK_core.cpp
View File

@ -93,7 +93,7 @@ amm-info@iis.fraunhofer.de
/* FDK tools library info */
#define FDK_TOOLS_LIB_VL0 2
#define FDK_TOOLS_LIB_VL1 2
#define FDK_TOOLS_LIB_VL2 6
#define FDK_TOOLS_LIB_VL2 7
#define FDK_TOOLS_LIB_TITLE "FDK Tools"
#define FDK_TOOLS_LIB_BUILD_DATE __DATE__
#define FDK_TOOLS_LIB_BUILD_TIME __TIME__

6
libFDK/src/qmf.cpp
View File

@ -1040,7 +1040,8 @@ qmfInitFilterBank (HANDLE_QMF_FILTER_BANK h_Qmf, /*!< Handle to return */
h_Qmf->outScalefactor = ALGORITHMIC_SCALING_IN_ANALYSIS_FILTERBANK + ALGORITHMIC_SCALING_IN_SYNTHESIS_FILTERBANK + h_Qmf->filterScale;
if (h_Qmf->p_stride == 2) {
if ( (h_Qmf->p_stride == 2)
|| ((flags & QMF_FLAG_CLDFB) && (no_channels == 32)) ) {
h_Qmf->outScalefactor -= 1;
}
h_Qmf->outGain = (FIXP_DBL)0x80000000; /* default init value will be not applied */
@ -1147,7 +1148,8 @@ qmfChangeOutScalefactor (HANDLE_QMF_FILTER_BANK synQmf, /*!< Handle of Qmf S
/* Add internal filterbank scale */
outScalefactor += ALGORITHMIC_SCALING_IN_ANALYSIS_FILTERBANK + ALGORITHMIC_SCALING_IN_SYNTHESIS_FILTERBANK + synQmf->filterScale;
if (synQmf->p_stride == 2) {
if ( (synQmf->p_stride == 2)
|| ((synQmf->flags & QMF_FLAG_CLDFB) && (synQmf->no_channels == 32)) ) {
outScalefactor -= 1;
}

4
libSBRdec/src/sbr_dec.cpp
View File

@ -581,7 +581,7 @@ sbr_dec ( HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */
outScalefactor += (SCAL_HEADROOM+1); /* psDiffScale! */
{
C_ALLOC_SCRATCH_START(pWorkBuffer, FIXP_DBL, 2*(64));
C_AALLOC_SCRATCH_START(pWorkBuffer, FIXP_DBL, 2*(64));
int maxShift = 0;
@ -682,7 +682,7 @@ sbr_dec ( HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */
synQmf->lsb,
synQmf->no_col );
C_ALLOC_SCRATCH_END(pWorkBuffer, FIXP_DBL, 2*(64));
C_AALLOC_SCRATCH_END(pWorkBuffer, FIXP_DBL, 2*(64));
}
}

20
libSBRenc/src/env_est.cpp
View File

@ -536,13 +536,18 @@ mhLoweringEnergy(FIXP_DBL nrg, INT M)
\return void
****************************************************************************/
static FIXP_DBL
nmhLoweringEnergy(FIXP_DBL nrg, FIXP_DBL nrgSum, INT M)
static FIXP_DBL nmhLoweringEnergy(
FIXP_DBL nrg,
const FIXP_DBL nrgSum,
const INT nrgSum_scale,
const INT M
)
{
if (nrg>FL2FXCONST_DBL(0)) {
int sc=0;
/* gain = nrgSum / (nrg*(M+1)) */
FIXP_DBL gain = fMult(fDivNorm(nrgSum, nrg, &sc), GetInvInt(M+1));
sc += nrgSum_scale;
/* reduce nrg if gain smaller 1.f */
if ( !((sc>=0) && ( gain > ((FIXP_DBL)MAXVAL_DBL>>sc) )) ) {
@ -616,6 +621,7 @@ calculateSbrEnvelope (FIXP_DBL **RESTRICT YBufferLeft, /*! energy buffer left *
FIXP_DBL pNrgLeft[QMF_MAX_TIME_SLOTS];
FIXP_DBL pNrgRight[QMF_MAX_TIME_SLOTS];
int envNrg_scale;
FIXP_DBL envNrgLeft = FL2FXCONST_DBL(0.0f);
FIXP_DBL envNrgRight = FL2FXCONST_DBL(0.0f);
int missingHarmonic[QMF_MAX_TIME_SLOTS];
@ -625,6 +631,7 @@ calculateSbrEnvelope (FIXP_DBL **RESTRICT YBufferLeft, /*! energy buffer left *
stop_pos = timeStep * frame_info->borders[i + 1];
freq_res = frame_info->freqRes[i];
no_of_bands = h_con->nSfb[freq_res];
envNrg_scale = DFRACT_BITS-fNormz((FIXP_DBL)no_of_bands);
if (i == short_env) {
stop_pos -= fixMax(2, timeStep); /* consider at least 2 QMF slots less for short envelopes (envelopes just before transients) */
@ -762,9 +769,8 @@ calculateSbrEnvelope (FIXP_DBL **RESTRICT YBufferLeft, /*! energy buffer left *
/* save energies */
pNrgLeft[j] = nrgLeft;
pNrgRight[j] = nrgRight;
envNrgLeft += nrgLeft;
envNrgRight += nrgRight;
envNrgLeft += (nrgLeft>>envNrg_scale);
envNrgRight += (nrgRight>>envNrg_scale);
} /* j */
for (j = 0; j < no_of_bands; j++) {
@ -777,9 +783,9 @@ calculateSbrEnvelope (FIXP_DBL **RESTRICT YBufferLeft, /*! energy buffer left *
if(!missingHarmonic[j] && h_sbr->fLevelProtect) {
/* in case of missing energy in base band,
reduce reference energy to prevent overflows in decoder output */
nrgLeft = nmhLoweringEnergy(nrgLeft, envNrgLeft, no_of_bands);
nrgLeft = nmhLoweringEnergy(nrgLeft, envNrgLeft, envNrg_scale, no_of_bands);
if (stereoMode == SBR_COUPLING) {
nrgRight = nmhLoweringEnergy(nrgRight, envNrgRight, no_of_bands);
nrgRight = nmhLoweringEnergy(nrgRight, envNrgRight, envNrg_scale, no_of_bands);
}
}

2
libSBRenc/src/sbr_encoder.cpp
View File

@ -103,7 +103,7 @@ amm-info@iis.fraunhofer.de
#define SBRENCODER_LIB_VL0 3
#define SBRENCODER_LIB_VL1 2
#define SBRENCODER_LIB_VL2 1
#define SBRENCODER_LIB_VL2 2

17
libSBRenc/src/sbr_rom.cpp
View File

@ -588,7 +588,7 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
{ 100000,160001, 44100, 1, 13,13,11,11, 2, 0, 3, SBR_MONO, 1 }, /* backwards compatible */
/* 48/96 kHz dual rate */ /* not yet finally tuned */
{ 24000, 36000, 48000, 1, 4, 4, 9, 9, 2, 0, 3, SBR_MONO, 3 }, /* lowest range (multichannel rear) */
{ 32000, 36000, 48000, 1, 4, 4, 9, 9, 2, 0, 3, SBR_MONO, 3 }, /* lowest range (multichannel rear) */
{ 36000, 60000, 48000, 1, 7, 7,10,10, 2, 0, 3, SBR_MONO, 2 }, /* nominal: 40 */
{ 60000, 72000, 48000, 1, 9, 9,10,10, 2, 0, 3, SBR_MONO, 1 }, /* nominal: 64 */
{ 72000,100000, 48000, 1, 11,11,11,11, 2, 0, 3, SBR_MONO, 1 }, /* nominal: 80 */
@ -671,7 +671,7 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
{ 144000,256001, 44100, 2, 13,13,11,11, 3, 0, -3, SBR_LEFT_RIGHT, 1 }, /* backwards compatible */
/* 48/96 kHz dual rate */ /* not yet finally tuned */
{ 32000, 60000, 48000, 2, 4, 4, 9, 9, 2, 0, -3, SBR_SWITCH_LRC, 3 }, /* lowest range (multichannel rear) */
{ 36000, 60000, 48000, 2, 4, 4, 9, 9, 2, 0, -3, SBR_SWITCH_LRC, 3 }, /* lowest range (multichannel rear) */
{ 60000, 80000, 48000, 2, 7, 7, 9, 9, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 64 */
{ 80000,112000, 48000, 2, 9, 9,10,10, 3, 0, -3, SBR_LEFT_RIGHT, 1 }, /* nominal: 96 */
{ 112000,144000, 48000, 2, 11,11,11,11, 3, 0, -3, SBR_LEFT_RIGHT, 1 }, /* nominal: 128 */
@ -680,9 +680,6 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
/** AAC LOW DELAY SECTION **/
/* 22.05/44.1 kHz dual rate */
{ 8000, 11369, 22050, 1, 1, 1, 1, 1, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 8 kbit/s */ /**changed (not changed !!)*/
{ 11369, 16000, 22050, 1, 1, 0, 3, 3, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 12 kbit/s */
{ 16000, 18000, 22050, 1, 2, 4, 4, 3, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 16 kbit/s */
{ 18000, 22000, 22050, 1, 4, 4, 5, 5, 2, 0, 6, SBR_MONO, 2 }, /* nominal: 20 kbit/s */
{ 22000, 28000, 22050, 1, 4, 4, 6, 5, 2, 0, 6, SBR_MONO, 2 }, /* nominal: 24 kbit/s */
{ 28000, 36000, 22050, 1, 7, 8, 8, 8, 2, 0, 3, SBR_MONO, 2 }, /* nominal: 32 kbit/s */
@ -691,10 +688,7 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
{ 52000, 64001, 22050, 1, 12,11,11,11, 2, 0, 3, SBR_MONO, 1 }, /* nominal: 56 kbit/s */
/* 24/48 kHz dual rate */
{ 8000, 12000, 24000, 1, 1, 1, 1, 1, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 8 kbit/s */ /**changed (not changed !!)*/
{ 12000, 16000, 24000, 1, 1, 0, 3, 3, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 12 kbit/s */
{ 16000, 18000, 24000, 1, 2, 4, 4, 3, 1, 0, 6, SBR_MONO, 3 }, /* nominal: 16 kbit/s */
{ 18000, 22000, 24000, 1, 4, 4, 5, 5, 2, 0, 6, SBR_MONO, 2 }, /* nominal: 20 kbit/s */
{ 20000, 22000, 24000, 1, 4, 4, 5, 5, 2, 0, 6, SBR_MONO, 2 }, /* nominal: 20 kbit/s */
{ 22000, 28000, 24000, 1, 4, 4, 6, 5, 2, 0, 6, SBR_MONO, 2 }, /* nominal: 24 kbit/s */
{ 28000, 36000, 24000, 1, 6, 8, 8, 8, 2, 0, 3, SBR_MONO, 2 }, /* nominal: 32 kbit/s */
{ 36000, 44000, 24000, 1, 8, 9, 9, 9, 2, 0, 3, SBR_MONO, 1 }, /* nominal: 40 kbit/s */
@ -702,8 +696,6 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
{ 52000, 64001, 24000, 1, 13,11,11,10, 2, 0, 3, SBR_MONO, 1 }, /* nominal: 48 kbit/s */
/* 22.05/44.1 kHz dual rate */
{ 24000, 28000, 22050, 2, 3, 2, 5, 4, 1, 0, -3, SBR_SWITCH_LRC, 3 }, /* nominal: 24 kbit/s */
{ 28000, 32000, 22050, 2, 3, 2, 7, 6, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 28 kbit/s */
{ 32000, 36000, 22050, 2, 5, 4, 7, 6, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 32 kbit/s */
{ 36000, 44000, 22050, 2, 5, 8, 8, 8, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 40 kbit/s */
{ 44000, 52000, 22050, 2, 7,10, 8, 8, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 48 kbit/s */
@ -713,8 +705,7 @@ const sbrTuningTable_t sbrTuningTable[SBRENC_TUNING_SIZE] =
{ 82000,128001, 22050, 2, 13,12,11,11, 3, 0, -3, SBR_LEFT_RIGHT, 1 }, /* nominal: 80 kbit/s */
/* 24/48 kHz dual rate */
{ 24000, 28000, 24000, 2, 3, 3, 5, 5, 1, 0, -3, SBR_SWITCH_LRC, 3 }, /* nominal: 24 kbit/s */
{ 28000, 36000, 24000, 2, 5, 4, 7, 6, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 32 kbit/s */
{ 32000, 36000, 24000, 2, 5, 4, 7, 6, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 32 kbit/s */
{ 36000, 44000, 24000, 2, 4, 8, 8, 8, 2, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 40 kbit/s */
{ 44000, 52000, 24000, 2, 6,10, 8, 8, 3, 0, -3, SBR_SWITCH_LRC, 2 }, /* nominal: 48 kbit/s */
{ 52000, 60000, 24000, 2, 9,11, 9, 9, 3, 0, -3, SBR_SWITCH_LRC, 1 }, /* nominal: 56 kbit/s */

4
libSBRenc/src/sbr_rom.h
View File

@ -119,8 +119,8 @@ extern const INT bookSbrNoiseBalanceC11T[25];
extern const UCHAR bookSbrNoiseBalanceL11T[25];
#define SBRENC_AACLC_TUNING_SIZE 124
#define SBRENC_AACELD_TUNING_SIZE 35
#define SBRENC_AACELD2_TUNING_SIZE 31
#define SBRENC_AACELD_TUNING_SIZE (26)
#define SBRENC_AACELD2_TUNING_SIZE (26)
#define SBRENC_TUNING_SIZE (SBRENC_AACLC_TUNING_SIZE + SBRENC_AACELD_TUNING_SIZE)

2
libSYS/include/genericStds.h
View File

@ -96,6 +96,8 @@ amm-info@iis.fraunhofer.de
#include "machine_type.h"
/* Work around for broken android toolchain: sys/types.h:137: error: 'uint64_t' does not name a type */
#define _SYS_TYPES_H_
/* Always increase verbosity of memory allocation in case of a debug built. DEBUG is defined globally in that case. */

2
libSYS/include/machine_type.h
View File

@ -173,7 +173,7 @@ amm-info@iis.fraunhofer.de
/* Define 64 bit base integer type. */
#ifdef _MSC_VER
#ifdef _WIN32
typedef __int64 INT64;
typedef unsigned __int64 UINT64;
#else

3
libSYS/src/cmdl_parser.cpp
View File

@ -92,6 +92,9 @@ amm-info@iis.fraunhofer.de
#define _CRT_SECURE_NO_WARNINGS
/* Work around for broken android toolchain: sys/types.h:137: error: 'uint64_t' does not name a type */
#define _SYS_TYPES_H_
#include <stdarg.h>
#include <stdio.h>
#include <string.h>