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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/mdct_fxp.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/mdct_fxp.h')
-rw-r--r-- | media/libstagefright/codecs/aacdec/mdct_fxp.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacdec/mdct_fxp.h b/media/libstagefright/codecs/aacdec/mdct_fxp.h new file mode 100644 index 0000000..b8d5a80 --- /dev/null +++ b/media/libstagefright/codecs/aacdec/mdct_fxp.h @@ -0,0 +1,107 @@ +/* ------------------------------------------------------------------ + * 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: mdct_fxp.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + Description: This extern had the incorrect length of the arrays. The true + lengths are 128 and 1024, not 64 and 512. + + Description: Modified interface so a vector with extended precision is + returned. Added copyright notice. + + Who: Date: + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + Header file for function mdct_fxp() + + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef MDCT_FXP_H +#define MDCT_FXP_H + +#ifdef __cplusplus +extern "C" +{ +#endif + + /*---------------------------------------------------------------------------- + ; INCLUDES + ----------------------------------------------------------------------------*/ +#include "pv_audio_type_defs.h" + + /*---------------------------------------------------------------------------- + ; MACROS + ; Define module specific macros here + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; DEFINES + ; Include all pre-processor statements here. + ----------------------------------------------------------------------------*/ +#define LONG_WINDOW_TYPE 2048 +#define SHORT_WINDOW_TYPE 256 + + /*---------------------------------------------------------------------------- + ; EXTERNAL VARIABLES REFERENCES + ; Declare variables used in this module but defined elsewhere + ----------------------------------------------------------------------------*/ + + extern const Int exp_rotation_N_256[128]; + extern const Int exp_rotation_N_2048[1024]; + + /*---------------------------------------------------------------------------- + ; SIMPLE TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; ENUMERATED TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; STRUCTURES TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; GLOBAL FUNCTION DEFINITIONS + ; Function Prototype declaration + ----------------------------------------------------------------------------*/ + Int mdct_fxp( + Int32 data_quant[], + Int32 Q_FFTarray[], + Int n); + +#ifdef __cplusplus +} +#endif + +/*---------------------------------------------------------------------------- +; END +----------------------------------------------------------------------------*/ +#endif /* MDCT_FXP_H */ |