| 7ad97579f8ccb843afdb5b184c4b209253839fe3 |
|
29-Aug-2013 |
Jean-Michel Trivi <jmtrivi@google.com> |
AAC Encoder low delay quality
* AAC-Encoder
- Revise bit distribution for lowdelay configuration to improve encoder
audio quality.
- Adjust lowdelay bitreservoir for low bitreservoir configuration.
Modified file(s):
libAACenc\src\aacEnc_ram.cpp
libAACenc\src\aacenc.cpp
libAACenc\src\aacenc_lib.cpp
libAACenc\src\aacenc_tns.cpp
libAACenc\src\adj_thr.cpp
libAACenc\src\adj_thr.h
libAACenc\src\block_switch.cpp
libAACenc\src\block_switch.h
libAACenc\src\interface.h
libAACenc\src\psy_main.cpp
libAACenc\src\qc_data.h
libAACenc\src\qc_main.cpp
* FDK-Library
- Increase the accuracy in CalcInvLdData() calculation which improves the
encoder audio quality.
Modified file(s):
libFDK\src\fixpoint_math.cpp
Bug 9428126
Change-Id: I302d7f4c3aeccf79e1b85f20e18a31e6e2b10544
/external/aac/libAACenc/src/aacenc_tns.cpp
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| 577fcbb570d023be4cea9564292dd2bd95f40c3b |
|
09-Aug-2013 |
Jean-Michel Trivi <jmtrivi@google.com> |
Decode and SYS lib cleanup
* AAC-Encoder
- Remove source snippets related to unsupported frame length of 960.
- Adjust minBits initialization for disabled VBR configuration.
Modified file(s):
libAACenc/src/aacenc.h
libAACenc/src/aacenc_lib.cpp
libAACenc/src/aacenc_tns.cpp
libAACenc/src/bandwidth.cpp
libAACenc/src/psy_const.h
libAACenc/src/transform.h
- Revise encoder parameter restrictions: "Error Resilient(ER) AAC Low Complexity"
is not supported. Where the AAC part of the FDK encoder threw an
initialization error, now the aacEncoder_SetParam() returns an error
before initialization if the application tries to configure this
audio object type.
Modified file(s):
libAACenc/src/aacenc_lib.cpp
* SYS-Library
- Portability fix for Mingw32.
Modified file(s):
libSYS/include/machine_type.h
- Minor changes.
Modified file(s):
libSYS/include/wav_file.h
libSYS/src/wav_file.cpp
libSYS/src/cmdl_parser.cpp
libSYS/src/genericStds.cpp
Bug 9428126
Change-Id: I9fa44923d34f033d0dc607f2b85abacb8a85eb61
/external/aac/libAACenc/src/aacenc_tns.cpp
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| 4f0d97057c5c640b25518358886f8c47da9fc052 |
|
09-Aug-2013 |
Jean-Michel Trivi <jmtrivi@google.com> |
Disclaimer update, lib version increment
- Update disclaimer in all source files.
- Increment library version in each FDK sub-module.
Bug 9428126
Change-Id: I490b96d4ee472246b01483202b0bb4f1e9c2a5d7
/external/aac/libAACenc/src/aacenc_tns.cpp
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| 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
/external/aac/libAACenc/src/aacenc_tns.cpp
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| 2228e360595641dd906bf1773307f43d304f5b2e |
|
11-Jul-2012 |
The Android Open Source Project <initial-contribution@android.com> |
Snapshot 2bda038c163298531d47394bc2c09e1409c5d0db
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54
/external/aac/libAACenc/src/aacenc_tns.cpp
|