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authorThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
committerThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
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tree57f3d390ebb0782cc0de0fb984c8ea7e45b4f386 /libSBRdec/src/sbr_ram.h
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+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
+ All rights reserved.
+
+ 1. INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
+the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
+This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
+audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
+independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
+of the MPEG specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
+may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
+individually for the purpose of encoding or decoding bit streams in products that are compliant with
+the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
+these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
+software may already be covered under those patent licenses when it is used for those licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
+are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
+applications information and documentation.
+
+2. COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification, are permitted without
+payment of copyright license fees provided that you satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
+your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation and/or other materials
+provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
+You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived from this library without
+prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
+software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
+and the date of any change. For modified versions of the FDK AAC Codec, the term
+"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
+"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
+
+3. NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
+ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
+respect to this software.
+
+You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
+by appropriate patent licenses.
+
+4. DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
+"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
+of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
+including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
+or business interruption, however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of this software, even if
+advised of the possibility of such damage.
+
+5. CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------------------------------------- */
+
+/*!
+\file
+\brief Memory layout
+
+*/
+#ifndef _SBR_RAM_H_
+#define _SBR_RAM_H_
+
+#include "sbrdecoder.h"
+
+#include "env_extr.h"
+#include "sbr_dec.h"
+
+
+
+#define SBRDEC_MAX_CH_PER_ELEMENT (2)
+
+typedef struct
+{
+ SBR_CHANNEL *pSbrChannel[SBRDEC_MAX_CH_PER_ELEMENT];
+ TRANSPOSER_SETTINGS transposerSettings; /* Common transport settings for each individual channel of an element */
+ HANDLE_FDK_BITSTREAM hBs;
+
+ MP4_ELEMENT_ID elementID; /* Element ID set during initialization. Can be used for concealment */
+ int nChannels; /* Number of elements output channels (=2 in case of PS) */
+
+ UCHAR frameErrorFlag[(1)+1]; /* Frame error status (for every slot in the delay line).
+ Will be copied into header at the very beginning of decodeElement() routine. */
+
+ UCHAR useFrameSlot; /* Index which defines which slot will be decoded/filled next (used with additional delay) */
+ UCHAR useHeaderSlot[(1)+1]; /* Index array that provides the link between header and frame data
+ (important when processing with additional delay). */
+} SBR_DECODER_ELEMENT;
+
+
+struct SBR_DECODER_INSTANCE
+{
+ SBR_DECODER_ELEMENT *pSbrElement[(4)];
+ SBR_HEADER_DATA sbrHeader[(4)][(1)+1]; /* Sbr header for each individual channel of an element */
+
+ FIXP_DBL *workBuffer1;
+ FIXP_DBL *workBuffer2;
+
+ HANDLE_PS_DEC hParametricStereoDec;
+
+ /* Global parameters */
+ AUDIO_OBJECT_TYPE coreCodec; /* AOT of core codec */
+ int numSbrElements;
+ int numSbrChannels;
+ INT sampleRateIn; /* SBR decoder input sampling rate; might be different than the transposer input sampling rate. */
+ INT sampleRateOut; /* Sampling rate of the SBR decoder output audio samples. */
+ USHORT codecFrameSize;
+ UCHAR synDownsampleFac;
+ UCHAR numDelayFrames; /* The current number of additional delay frames used for processing. */
+
+ UINT flags;
+
+};
+
+H_ALLOC_MEM(Ram_SbrDecElement, SBR_DECODER_ELEMENT)
+H_ALLOC_MEM(Ram_SbrDecChannel, SBR_CHANNEL)
+H_ALLOC_MEM(Ram_SbrDecoder, struct SBR_DECODER_INSTANCE)
+
+H_ALLOC_MEM(Ram_sbr_QmfStatesSynthesis, FIXP_QSS)
+H_ALLOC_MEM(Ram_sbr_OverlapBuffer, FIXP_DBL)
+
+
+H_ALLOC_MEM(Ram_ps_dec, PS_DEC)
+
+
+H_ALLOC_MEM_OVERLAY(Ram_SbrDecWorkBuffer1, FIXP_DBL)
+H_ALLOC_MEM_OVERLAY(Ram_SbrDecWorkBuffer2, FIXP_DBL)
+
+
+#endif /* _SBR_RAM_H_ */