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+/****************************************************************************
+
+ (C) Copyright Fraunhofer IIS (2004)
+ All Rights Reserved
+
+ Please be advised that this software and/or program delivery is
+ Confidential Information of Fraunhofer and subject to and covered by the
+
+ Fraunhofer IIS Software Evaluation Agreement
+ between Google Inc. and Fraunhofer
+ effective and in full force since March 1, 2012.
+
+ You may use this software and/or program only under the terms and
+ conditions described in the above mentioned Fraunhofer IIS Software
+ Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+ This software and/or program is protected by copyright law and international
+ treaties. Any reproduction or distribution of this software and/or program,
+ or any portion of it, may result in severe civil and criminal penalties, and
+ will be prosecuted to the maximum extent possible under law.
+
+ $Id$
+
+****************************************************************************/
+/*!
+ \file
+ \brief Defines structures for RVLC
+ \author Robert Weidner
+*/
+#ifndef RVLC_INFO_H
+#define RVLC_INFO_H
+
+
+
+#define FWD 0 /* bitstream decoding direction forward (RVL coded part) */
+#define BWD 1 /* bitstream decoding direction backward (RVL coded part) */
+
+#define MAX_RVL 7 /* positive RVLC escape */
+#define MIN_RVL -7 /* negative RVLC escape */
+#define MAX_ALLOWED_DPCM_INDEX 14 /* the maximum allowed index of a decoded dpcm value (offset 'TABLE_OFFSET' incl --> must be subtracted) */
+#define TABLE_OFFSET 7 /* dpcm offset of valid output values of rvl table decoding, the rvl table ouly returns positive values, therefore the offset */
+#define MAX_LEN_RVLC_CODE_WORD 9 /* max length of a RVL codeword in bits */
+#define MAX_LEN_RVLC_ESCAPE_WORD 20 /* max length of huffman coded RVLC escape word in bits */
+
+#define DPCM_NOISE_NRG_BITS 9
+#define SF_OFFSET 100 /* offset for correcting scf value */
+
+#define CONCEAL_MAX_INIT 1311 /* arbitrary value */
+#define CONCEAL_MIN_INIT -1311 /* arbitrary value */
+
+#define RVLC_MAX_SFB ((8) * (16))
+
+/* sideinfo of RVLC */
+typedef struct
+{
+ /* ------- ESC 1 Data: --------- */ /* order of RVLC-bitstream components in bitstream (RVLC-initialization), every component appears only once in bitstream */
+ INT sf_concealment; /* 1 */
+ INT rev_global_gain; /* 2 */
+ SHORT length_of_rvlc_sf; /* 3 */ /* original value, gets modified (subtract 9) in case of noise (PNS); is kept for later use */
+ INT dpcm_noise_nrg; /* 4 optional */
+ INT sf_escapes_present; /* 5 */
+ SHORT length_of_rvlc_escapes; /* 6 optional */
+ INT dpcm_noise_last_position; /* 7 optional */
+
+ INT dpcm_is_last_position;
+
+ SHORT length_of_rvlc_sf_fwd; /* length_of_rvlc_sf used for forward decoding */
+ SHORT length_of_rvlc_sf_bwd; /* length_of_rvlc_sf used for backward decoding */
+
+ /* for RVL-Codeword decoder to distinguish between fwd and bwd decoding */
+ SHORT *pRvlBitCnt_RVL;
+ USHORT *pBitstrIndxRvl_RVL;
+
+ UCHAR numWindowGroups;
+ UCHAR maxSfbTransmitted;
+ UCHAR first_noise_group;
+ UCHAR first_noise_band;
+ UCHAR direction;
+
+ /* bitstream indices */
+ USHORT bitstreamIndexRvlFwd; /* base address of RVL-coded-scalefactor data (ESC 2) for forward decoding */
+ USHORT bitstreamIndexRvlBwd; /* base address of RVL-coded-scalefactor data (ESC 2) for backward decoding */
+ USHORT bitstreamIndexEsc; /* base address where RVLC-escapes start (ESC 2) */
+
+ /* decoding trees */
+ const UINT *pHuffTreeRvlCodewds;
+ const UINT *pHuffTreeRvlcEscape;
+
+ /* escape counters */
+ UCHAR numDecodedEscapeWordsFwd; /* when decoding RVL-codes forward */
+ UCHAR numDecodedEscapeWordsBwd; /* when decoding RVL-codes backward */
+ UCHAR numDecodedEscapeWordsEsc; /* when decoding the escape-Words */
+
+ SCHAR noise_used;
+ SCHAR intensity_used;
+ SCHAR sf_used;
+
+ SHORT firstScf;
+ SHORT lastScf;
+ SHORT firstNrg;
+ SHORT lastNrg;
+ SHORT firstIs;
+ SHORT lastIs;
+
+ /* ------ RVLC error detection ------ */
+ UINT errorLogRvlc; /* store RVLC errors */
+ SHORT conceal_min; /* is set at backward decoding */
+ SHORT conceal_max; /* is set at forward decoding */
+ SHORT conceal_min_esc; /* is set at backward decoding */
+ SHORT conceal_max_esc; /* is set at forward decoding */
+} CErRvlcInfo;
+
+typedef CErRvlcInfo RVLC_INFO; /* temp */
+
+
+
+#endif /* RVLC_INFO_H */