| 6ab36997af5d5acda4f21d33031f4e45c85f96b7 |
02-Oct-2012 |
Jean-Michel Trivi <jmtrivi@google.com> |
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
DK_core.cpp
|
| 381d69840ad3af2259f0b7ef49236f9ee9c76b76 |
09-Sep-2012 |
Jean-Michel Trivi <jmtrivi@google.com> |
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
DK_core.cpp
mf.cpp
|
| 2228e360595641dd906bf1773307f43d304f5b2e |
11-Jul-2012 |
The Android Open Source Project <initial-contribution@android.com> |
Snapshot 2bda038c163298531d47394bc2c09e1409c5d0db
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54
DK_bitbuffer.cpp
DK_core.cpp
DK_crc.cpp
DK_hybrid.cpp
DK_tools_rom.cpp
DK_trigFcts.cpp
rm/autocorr2nd.cpp
rm/dct_arm.cpp
rm/fft_rad2_arm.cpp
rm/qmf_arm.cpp
rm/scale_arm.cpp
utocorr2nd.cpp
ct.cpp
ft.cpp
ft_rad2.cpp
ixpoint_math.cpp
dct.cpp
ips/fft_rad2_mips.cpp
ips/mips_fft_twiddles.cpp
ips/scale.cpp
mf.cpp
cale.cpp
|