From dacaa73ae5010b66f4224d70a520945e5b653544 Mon Sep 17 00:00:00 2001 From: Andreas Huber Date: Mon, 7 Dec 2009 09:56:32 -0800 Subject: Initial check in of stagefright software AAC decoder based on PV source code. --- media/libstagefright/codecs/aacdec/fft_rx4.h | 110 +++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 media/libstagefright/codecs/aacdec/fft_rx4.h (limited to 'media/libstagefright/codecs/aacdec/fft_rx4.h') diff --git a/media/libstagefright/codecs/aacdec/fft_rx4.h b/media/libstagefright/codecs/aacdec/fft_rx4.h new file mode 100644 index 0000000..8e7acb3 --- /dev/null +++ b/media/libstagefright/codecs/aacdec/fft_rx4.h @@ -0,0 +1,110 @@ +/* ------------------------------------------------------------------ + * 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: ./include/fft_rx4.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + (1) modified definition of w_64rx4 from Int to Int16 + + Who: Date: + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + Header file for functions fft_rx4() + + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef FFT_RX4_H +#define FFT_RX4_H + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "pv_audio_type_defs.h" + +/*---------------------------------------------------------------------------- +; MACROS +; Define module specific macros here +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; DEFINES +; Include all pre-processor statements here. +----------------------------------------------------------------------------*/ +#define FFT_RX4_LONG 256 +#define ONE_FOURTH_FFT_RX4_LONG ((FFT_RX4_LONG)>>2) +#define FFT_RX4_SHORT 64 +#define ONE_FOURTH_FFT_RX4_SHORT ((FFT_RX4_SHORT)>>2) + +/*---------------------------------------------------------------------------- +; EXTERNAL VARIABLES REFERENCES +; Declare variables used in this module but defined elsewhere +----------------------------------------------------------------------------*/ +extern const Int16 w_64rx4[]; +extern const Int32 W_64rx4[]; +extern const Int32 W_256rx4[]; +extern const Int32 w_512rx2[]; + +/*---------------------------------------------------------------------------- +; SIMPLE TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; ENUMERATED TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; STRUCTURES TYPEDEF'S +----------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------- +; GLOBAL FUNCTION DEFINITIONS +; Function Prototype declaration +----------------------------------------------------------------------------*/ + +#ifdef __cplusplus +extern "C" +{ +#endif + + void fft_rx4_long( + Int32 Data[], + Int32 *peak_value); + + Int fft_rx4_short( + Int32 Data[], + Int32 *peak_value); + +#ifdef __cplusplus +} +#endif + +/*---------------------------------------------------------------------------- +; END +----------------------------------------------------------------------------*/ +#endif /* FFT_RX4_H */ -- cgit v1.1