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Bug fixes in AAC decoder, AAC encoder, FDK library

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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
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2
libFDK/include/common_fix.h
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@@ -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)