Commit Graph

5 Commits

Author SHA1 Message Date
Jean-Michel Trivi
6ab36997af Bug 7170947 Update AAC codec
From Fraunhofer:
* AAC Decoder

   - Stick to the written MPEG standard instead of the MPEG reference software
     in terms of reference level normalization. Always set the program reference
     level equal to the target level. This disables level normalization using a
     default level for streams without embedded metadata.
     Modified file(s):
        libAACdec\src\aacdec_drc.cpp

   - Fix downmix channel assignment when using a WAV output channel ordering.
     Modified file(s):
        libPCMutils\src\pcmutils_lib.cpp

   - Retain signal accuracy and prevent LSB alteration when no level correction
     needs to be done.
     Modified file(s):
        libAACdec\src\aacdec_drc.h
        libAACdec\src\aacdec_drc.cpp
        libSBRdec\src\sbrdecoder.cpp
        libSBRdec\src\sbr_dec.cpp
        libSBRdec\src\sbrdec_drc.cpp

   - Align metadata processing with reference implementation.
     Modified file(s):
        libAACdec\src\aacdec_drc.h
        libAACdec\src\aacdecoder.cpp

* AAC-Encoder

   - Prevent potential overflow in energy calculation after TNS processing.
     Modified file(s):
       libAACenc\src\band_nrg.cpp

   - Added saturation for number of relevant lines which are used in pe
     calculation.
     Modified file(s):
       libAACenc\src\line_pe.cpp

   - Removed obsolete files.
     Deleded file(s):
       libAACenc\src\tns_param.h
       libAACenc\src\tns_param.cpp

* FDK-Library

   - Added x86 Count Leading Zeros intrinsic.
     Modified file(s):
        libFDK\include\clz.h
     Added file(s):
        libFDK\include\x86\clz_x86.h

   - Fixed compilation for MIPS GCC-4.4 and higher.
     Modified file(s):
        libFDK\include\mips\cplx_mul.h
        libFDK\include\mips\fixmul_mips.h

Change-Id: I4be65f07f88d412224c7fddc3f054e8f451176cc
2012-10-02 10:46:47 -07:00
Keun young Park
1043598349 fix mips build by reverting files back
- MIPS still needs the work-around

Change-Id: If68b2028bd2779ada79020bb333ec8817abe9429
2012-09-11 17:28:46 -07:00
Jean-Michel Trivi
381d69840a Bug fixes in AAC decoder, AAC encoder, FDK library
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
2012-09-09 11:52:09 -07:00
Raghu Gandham
50d9a4cb1e GCC 4.4 and later cannot handle h constructs. Fix to replace the assembly constructs.
Change-Id: I47509c20ee32f04ce42105563d2d4013910da531
2012-08-09 18:57:46 -07:00
The Android Open Source Project
2228e36059 Snapshot 2bda038c16
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54
2012-07-11 10:15:24 -07:00