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author | Andreas Huber <andih@google.com> | 2009-12-07 09:56:32 -0800 |
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committer | Andreas Huber <andih@google.com> | 2009-12-07 11:02:28 -0800 |
commit | dacaa73ae5010b66f4224d70a520945e5b653544 (patch) | |
tree | a2c9e71b6337dd25d149bd5fa43f7a782e9387fb /media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h | |
parent | 5921fb51e0219ddd7cad439a73495f320c57d50e (diff) | |
download | frameworks_base-dacaa73ae5010b66f4224d70a520945e5b653544.zip frameworks_base-dacaa73ae5010b66f4224d70a520945e5b653544.tar.gz frameworks_base-dacaa73ae5010b66f4224d70a520945e5b653544.tar.bz2 |
Initial check in of stagefright software AAC decoder based on PV source code.
Diffstat (limited to 'media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h')
-rw-r--r-- | media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h b/media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h new file mode 100644 index 0000000..c8968cb --- /dev/null +++ b/media/libstagefright/codecs/aacdec/qmf_filterbank_coeff.h @@ -0,0 +1,99 @@ +/* ------------------------------------------------------------------ + * Copyright (C) 1998-2009 PacketVideo + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either + * express or implied. + * See the License for the specific language governing permissions + * and limitations under the License. + * ------------------------------------------------------------------- + */ +/* + + Pathname: qmf_filterbank_coeff.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + this file declares the scalefactor bands for all sampling rates + +------------------------------------------------------------------------------ +*/ + + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef QMF_FILTERBANK_COEFF_H +#define QMF_FILTERBANK_COEFF_H + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "pv_audio_type_defs.h" + +/*---------------------------------------------------------------------------- +; MACROS +; Define module specific macros here +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; DEFINES +; Include all pre-processor statements here. +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; EXTERNAL VARIABLES REFERENCES +; Declare variables used in this module but defined elsewhere +----------------------------------------------------------------------------*/ + +#define Qfmt(x) (Int16)(x*(((Int32)1<<15)*1.11111111111111111F) + (x>=0?0.5F:-0.5F)) + + +#define Qfmt30(x) (Int32)(x*((Int32)1<<30) + (x>=0?0.5F:-0.5F)) +#define Qfmt27(x) (Int32)(x*(((Int32)1<<27)) + (x>=0?0.5F:-0.5F)) + +extern const Int32 sbrDecoderFilterbankCoefficients[155]; + + +extern const Int32 sbrDecoderFilterbankCoefficients_down_smpl[160]; +extern const Int32 sbrDecoderFilterbankCoefficients_an_filt_LC[155]; + +#ifdef HQ_SBR +extern const Int32 sbrDecoderFilterbankCoefficients_an_filt[155]; +#endif + +/*---------------------------------------------------------------------------- +; SIMPLE TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; ENUMERATED TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; STRUCTURES TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; GLOBAL FUNCTION DEFINITIONS +; Function Prototype declaration +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; END +----------------------------------------------------------------------------*/ +#endif + + |