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* SBR/AAC encoder updates, code clean upJean-Michel Trivi2016-04-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * SBR-Encoder - Prevent noise level overflow in noise floor detection. - Saturate threshold calculation in transient detection. Modified file(s): libSBRenc/src/nf_est.cpp libSBRenc/src/sbr_encoder.cpp libSBRenc/src/tran_det.cpp * AAC-Encoder - Expand input data range of GetInvInt() function. There was an encoder assert observed in non-default bitrate configuration. Modified file(s): libAACenc/src/aacenc_lib.cpp libAACenc/src/intensity.cpp libFDK/include/fixpoint_math.h libFDK/src/FDK_core.cpp libFDK/src/FDK_tools_rom.cpp - Make sure that the encoder is stable with regard to very low audio bandwidth confguration parameter value. - Fix lowdelay blending for low audio bandwidth. Modified file(s): libAACenc/src/aacenc.cpp libAACenc/src/aacenc_lib.cpp libAACenc/src/adj_thr.cpp libAACenc/src/psy_configuration.cpp libAACenc/src/psy_main.cpp - Disable pseudo surround flag in case metadata matrix mixdown index is present in program config element. Modified file(s): libAACenc/src/aacenc_lib.cpp - Enable variable bitrate mode in encoder api. - Add AACENC_PEAK_BITRATE parameter to encoder api. - Add AACENC_AUDIOMUXVER parameter to encoder api. Modified file(s): libAACenc/include/aacenc_lib.h libAACenc/src/aacenc.cpp libAACenc/src/aacenc.h libAACenc/src/aacenc_lib.cpp libAACenc/src/qc_main.cpp libMpegTPEnc/src/tpenc_latm.cpp libMpegTPEnc/src/version * FDK-Sources - Code clean up. Remove unneeded pseudo audio object types and transport types. Modified file(s): libAACdec/src/aacdecoder.cpp libAACdec/src/aacdecoder_lib.cpp libAACenc/include/aacenc_lib.h libAACenc/src/aacenc.cpp libAACenc/src/aacenc_lib.cpp libFDK/src/FDK_tools_rom.cpp libMpegTPDec/src/tpdec_lib.cpp libMpegTPDec/src/version libMpegTPEnc/src/tpenc_latm.cpp libMpegTPEnc/src/version libSBRdec/src/sbrdecoder.cpp libSBRenc/src/sbr_encoder.cpp libSYS/include/FDK_audio.h libSYS/src/genericStds.cpp Change-Id: I807a53cb7f48c9ee7563cb8da1d0c52221576ca6
* Remove compiler warnings, revised ARM QMF encoderJean-Michel Trivi2016-04-041-2/+2
| | | | | | Bug 8493170 Change-Id: I64d19a8a8059c5a96386b1eaac297fd2469515f8
* Remove __DATE__/__TIME__Dan Willemsen2015-10-231-0/+5
| | | | | | | | | | | | | Building __DATE__/__TIME__ into the binaries means that every build will create different binaries, even if all the sources are identical. This also means that any libraries including this one will need to be patched during every OTA. Nothing appears to use the build_date/build_time fields, so just replace them with empty strings. Bug: 24204119 Change-Id: I9543eb388a1e8ab9284df9035a62fc8942cdc082
* AAC Encoder low delay qualityJean-Michel Trivi2013-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
* FDK update for downsampled SBRJean-Michel Trivi2013-08-271-1/+1
| | | | | | | | Add missing support for downsampled SBR in libFDK Bug 9428126 Change-Id: Idb732f8d31a115d36dd4b22916599db7fab98cae
* Disclaimer update, lib version incrementJean-Michel Trivi2013-08-201-3/+3
| | | | | | | | | - Update disclaimer in all source files. - Increment library version in each FDK sub-module. Bug 9428126 Change-Id: I490b96d4ee472246b01483202b0bb4f1e9c2a5d7
* Bug 7170947 Update AAC codecJean-Michel Trivi2012-10-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Bug fixes in AAC decoder, AAC encoder, FDK libraryJean-Michel Trivi2012-09-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Snapshot 2bda038c163298531d47394bc2c09e1409c5d0dbThe Android Open Source Project2012-07-111-0/+128
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54