207 lines
7.0 KiB
C
207 lines
7.0 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Source last modified: $Id: aacdec.h,v 1.8 2005/11/10 00:15:08 margotm Exp $
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*
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* Portions Copyright (c) 1995-2005 RealNetworks, Inc. All Rights Reserved.
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*
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* The contents of this file, and the files included with this file,
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* are subject to the current version of the RealNetworks Public
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* Source License (the "RPSL") available at
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* http://www.helixcommunity.org/content/rpsl unless you have licensed
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* the file under the current version of the RealNetworks Community
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* Source License (the "RCSL") available at
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* http://www.helixcommunity.org/content/rcsl, in which case the RCSL
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* will apply. You may also obtain the license terms directly from
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* RealNetworks. You may not use this file except in compliance with
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* the RPSL or, if you have a valid RCSL with RealNetworks applicable
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* to this file, the RCSL. Please see the applicable RPSL or RCSL for
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* the rights, obligations and limitations governing use of the
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* contents of the file.
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*
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* This file is part of the Helix DNA Technology. RealNetworks is the
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* developer of the Original Code and owns the copyrights in the
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* portions it created.
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*
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* This file, and the files included with this file, is distributed
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* and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
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* KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
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* ENJOYMENT OR NON-INFRINGEMENT.
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*
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* Technology Compatibility Kit Test Suite(s) Location:
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* http://www.helixcommunity.org/content/tck
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** */
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/**************************************************************************************
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* Fixed-point HE-AAC decoder
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* Jon Recker ([email protected])
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* February 2005
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*
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* aacdec.h - public C API for AAC decoder
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**************************************************************************************/
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#ifndef _AACDEC_H
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#define _AACDEC_H
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#define _ARC32
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#if defined(_WIN32) && !defined(_WIN32_WCE)
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#
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#elif defined(_WIN32) && defined(_WIN32_WCE) && defined(ARM)
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#
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#elif defined(_WIN32) && defined(WINCE_EMULATOR)
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#
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#elif defined (__arm) && defined (__ARMCC_VERSION)
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#
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#elif defined(_SYMBIAN) && defined(__WINS__)
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#
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#elif defined(__GNUC__) && defined(__arm__)
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#
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#elif defined(__GNUC__) && defined(__i386__)
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#
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#elif defined(__GNUC__) && defined(__amd64__)
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#
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#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__POWERPC__))
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#
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#elif defined(_OPENWAVE_SIMULATOR) || defined(_OPENWAVE_ARMULATOR)
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#
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#elif defined(_SOLARIS) && !defined(__GNUC__)
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#
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#elif defined(_ARC32)
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#define __inline _Inline
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#else
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#error No platform defined. See valid options in aacdec.h
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* according to spec (13818-7 section 8.2.2, 14496-3 section 4.5.3)
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* max size of input buffer =
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* 6144 bits = 768 bytes per SCE or CCE-I
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* 12288 bits = 1536 bytes per CPE
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* 0 bits = 0 bytes per CCE-D (uses bits from the SCE/CPE/CCE-I it is coupled to)
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*/
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#ifndef AAC_MAX_NCHANS /* if max channels isn't set in makefile, */
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#define AAC_MAX_NCHANS 6 /* set to default max number of channels */
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#endif
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#define AAC_MAX_NSAMPS 1024
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#define AAC_MAINBUF_SIZE (768 * AAC_MAX_NCHANS)
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#define AAC_NUM_PROFILES 3
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#define AAC_PROFILE_MP 0
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#define AAC_PROFILE_LC 1
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#define AAC_PROFILE_SSR 2
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#define AAC_INPUTBUF_SIZE (2 * 768 * 4) /* pick something big enough to hold a bunch of frames */
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/* define these to enable decoder features */
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#ifndef __ARC600__
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#define HELIX_FEATURE_AUDIO_CODEC_AAC_SBR
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#endif /* __ARC600__ */
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#if defined(HELIX_FEATURE_AUDIO_CODEC_AAC_SBR)
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#define AAC_ENABLE_SBR
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#endif // HELIX_FEATURE_AUDIO_CODEC_AAC_SBR.
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#define AAC_ENABLE_MPEG4
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#ifdef AAC_ENABLE_SBR
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#define SBR_MUL 2
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#else
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#define SBR_MUL 1
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#endif
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enum {
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ERR_AAC_NONE = 0,
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ERR_AAC_INDATA_UNDERFLOW = -1,
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ERR_AAC_NULL_POINTER = -2,
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ERR_AAC_INVALID_ADTS_HEADER = -3,
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ERR_AAC_INVALID_ADIF_HEADER = -4,
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ERR_AAC_INVALID_FRAME = -5,
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ERR_AAC_MPEG4_UNSUPPORTED = -6,
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ERR_AAC_CHANNEL_MAP = -7,
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ERR_AAC_SYNTAX_ELEMENT = -8,
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ERR_AAC_DEQUANT = -9,
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ERR_AAC_STEREO_PROCESS = -10,
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ERR_AAC_PNS = -11,
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ERR_AAC_SHORT_BLOCK_DEINT = -12,
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ERR_AAC_TNS = -13,
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ERR_AAC_IMDCT = -14,
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ERR_AAC_NCHANS_TOO_HIGH = -15,
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ERR_AAC_SBR_INIT = -16,
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ERR_AAC_SBR_BITSTREAM = -17,
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ERR_AAC_SBR_DATA = -18,
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ERR_AAC_SBR_PCM_FORMAT = -19,
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ERR_AAC_SBR_NCHANS_TOO_HIGH = -20,
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ERR_AAC_SBR_SINGLERATE_UNSUPPORTED = -21,
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ERR_AAC_RAWBLOCK_PARAMS = -22,
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ERR_AAC_COFF_EXCEED_RANGE = -23,
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ERR_AAC_HUFFMAN_DECODING = -24,
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ERR_AAC_SPEC_NOT_MATCH = -25,
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ERR_AAC_INVALID_ADTS_SYNCWORD = -26,
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ERR_AAC_SSR_GAIN_NOT_ADDED = -27,
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ERR_AAC_EXIT_DECODE = -28,
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ERR_UNKNOWN = -9999
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};
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typedef struct _AACIOBuf {
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int bytesLeft;
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unsigned char *readPtr;
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unsigned char readBuf[AAC_INPUTBUF_SIZE];
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short outBuf[AAC_MAX_NCHANS * AAC_MAX_NSAMPS * SBR_MUL];
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} AACIOBuf;
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typedef struct _AACFrameInfo { // should keep same as _audio_codec_config_aacdec_t in audio_codec_aac.h
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int bitRate;
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int nChans;
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int sampRateCore;
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int sampRateOut;
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int bitsPerSample;
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int outputSamps;
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int profile;
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int tnsUsed;
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int pnsUsed;
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int format;
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unsigned total_byte_parsed;
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unsigned total_sample_decoded;
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unsigned audio_send_by_frame;
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//#ifndef PRE_APOLLO
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unsigned char *extra_data;
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unsigned extradata_len;
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//#endif
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} AACFrameInfo;
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typedef void *HAACDecoder;
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typedef void *HAACIOBuf;
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/* public C API */
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HAACDecoder AACInitDecoder();
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void AACFreeDecoder(HAACDecoder hAACDecoder);
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int AACDecode(HAACDecoder hAACDecoder, unsigned char **inbuf, int *bytesLeft, short *outbuf);
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int AACFindSyncWord(unsigned char *buf, int nBytes);
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void AACGetLastFrameInfo(HAACDecoder hAACDecoder, AACFrameInfo *aacFrameInfo);
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void AACGetDecoderInfo(HAACDecoder hAACDecoder, AACFrameInfo *aacFrameInfo);
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int AACSetRawBlockParams(HAACDecoder hAACDecoder, int copyLast, AACFrameInfo *aacFrameInfo);
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int AACFlushCodec(HAACDecoder hAACDecoder);
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#ifdef HELIX_CONFIG_AAC_GENERATE_TRIGTABS_FLOAT
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int AACInitTrigtabsFloat(void);
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void AACFreeTrigtabsFloat(void);
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#endif
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extern int AACDataSource;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _AACDEC_H */
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