coder.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- /**************************************************************************************
- * Fixed-point MP3 decoder using Intel IPP libraries
- * June 2003
- *
- * coder.h - definitions of data structures for IPP wrapper functions
- **************************************************************************************/
- #ifndef _CODER_H
- #define _CODER_H
- #include "mp3common.h"
- /* IPP definitions - may need to tweak names/paths for future versions of IPP */
- #if defined(_WIN32) && defined(_M_IX86)
- #include "ippMP.h" /* for version 3.0 */
- #else
- #include "ippAC.h"
- #endif
- typedef struct _FrameHeader {
- IppMP3FrameHeader fhIPP;
- } FrameHeader;
- typedef struct _SideInfo {
- IppMP3SideInfo siIPP[MAX_NCHAN*MAX_NGRAN];
- int privateBits;
- int scfsi[MAX_NCHAN][MAX_SCFBD]; /* 4 scalefactor bands per channel */
- } SideInfo;
- typedef struct _ScaleFactorInfo {
- /* scalefactors (1 or 2 granules, 1 or 2 channels) */
- signed char scaleFactor[MAX_NCHAN][IPP_MP3_SF_BUF_LEN];
- } ScaleFactorInfo;
- typedef struct _HuffmanInfo {
- int huffDecBuf[MAX_NCHAN][IPP_MP3_GRANULE_LEN]; /* used both for decoded Huffman values and dequantized coefficients */
- int nonZeroBound[MAX_NCHAN]; /* number of coeffs in huffDecBuf[ch] which can be > 0*/
- } HuffmanInfo;
- typedef struct _DequantInfo {
- int workBuf[IPP_MP3_GRANULE_LEN];
- } DequantInfo;
- typedef struct _IMDCTInfo {
- int outBuf[MAX_NCHAN][IPP_MP3_GRANULE_LEN]; /* output of IMDCT */
- int overBuf[MAX_NCHAN][IPP_MP3_GRANULE_LEN]; /* overlap-add buffer (save for next time) */
- int numPrevIMDCT[MAX_NCHAN]; /* how many IMDCT's calculated in this channel on prev. granule */
- } IMDCTInfo;
- typedef struct _SubbandInfo {
- int vbuf[MAX_NCHAN][IPP_MP3_V_BUF_LEN]; /* vbuf for fast DCT-based synthesis PQMF */
- int vindex[MAX_NCHAN]; /* internal indices for tracking position in vbuf */
- } SubbandInfo;
- #endif /* _CODER_H */