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Diffstat (limited to 'libAACenc/src/bitenc.h')
| -rw-r--r-- | libAACenc/src/bitenc.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libAACenc/src/bitenc.h b/libAACenc/src/bitenc.h new file mode 100644 index 0000000..692a1a2 --- /dev/null +++ b/libAACenc/src/bitenc.h @@ -0,0 +1,120 @@ +/******************************** MPEG Audio Encoder ************************** + + (C) Copyright Fraunhofer IIS (1999) + 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. + + $Id$ + Initial author: M. Werner + contents/description: Bitstream encoder + +******************************************************************************/ +#ifndef _BITENC_H +#define _BITENC_H + + +#include "qc_data.h" +#include "aacenc_tns.h" +#include "channel_map.h" +#include "interface.h" /* obsolete, when PSY_OUT is thrown out of the WritBS-call! */ +#include "FDK_audio.h" +#include "aacenc.h" + +#include "tpenc_lib.h" + +typedef enum{ + MAX_ENCODER_CHANNELS = 9, + MAX_BLOCK_TYPES = 4, + MAX_AAC_LAYERS = 9, + MAX_LAYERS = MAX_AAC_LAYERS , /* only one core layer if present */ + FIRST_LAY = 1 /* default layer number for AAC nonscalable */ +} _MAX_CONST; + +#define BUFFER_MX_HUFFCB_SIZE (32*sizeof(INT)) /* our FDK_bitbuffer needs size of power 2 */ + +#define EL_ID_BITS ( 3 ) + + +/** + * \brief Arbitrary order bitstream writer. This function can either assemble a bit stream + * and write into the bit buffer of hTpEnc or calculate the number of static bits (signal independent) + * TpEnc handle must be NULL in this case. Or also Calculate the minimum possible number of + * static bits which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt parameter + * has to be 1 in this latter case. + * \param hTpEnc Transport encoder handle. If NULL, the number of static bits will be returned into + * *pBitDemand. + * \param pElInfo + * \param qcOutChannel + * \param hReorderInfo + * \param psyOutElement + * \param psyOutChannel + * \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio Codec flags). + * \param aot + * \param epConfig + * \param pBitDemand Pointer to an int where the amount of bits is returned into. The returned value + * depends on if hTpEnc is NULL and minCnt. + * \param minCnt If non-zero the value returned into *pBitDemand is the absolute minimum required amount of + * static bits in order to write a valid bit stream. + * \return AAC_ENCODER_ERROR error code + */ +AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC hTpEnc, + ELEMENT_INFO *pElInfo, + QC_OUT_CHANNEL *qcOutChannel[(2)], + PSY_OUT_ELEMENT *psyOutElement, + PSY_OUT_CHANNEL *psyOutChannel[(2)], + UINT syntaxFlags, + AUDIO_OBJECT_TYPE aot, + SCHAR epConfig, + INT *pBitDemand, + UCHAR minCnt + ); +/** + * \brief Write bit stream or account static bits + * \param hTpEnc transport encoder handle. If NULL, the function will + * not write any bit stream data but only count the amount + * of static (signal independent) bits + * \param channelMapping Channel mapping info + * \param qcOut + * \param psyOut + * \param qcKernel + * \param hBSE + * \param aot Audio Object Type being encoded + * \param syntaxFlags Flags indicating format specific detail + * \param epConfig Error protection config + */ +AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream (HANDLE_TRANSPORTENC hTpEnc, + CHANNEL_MAPPING *channelMapping, + QC_OUT* qcOut, + PSY_OUT* psyOut, + QC_STATE* qcKernel, + AUDIO_OBJECT_TYPE aot, + UINT syntaxFlags, + SCHAR epConfig + ); + +INT FDKaacEnc_writeExtensionData( HANDLE_TRANSPORTENC hTpEnc, + QC_OUT_EXTENSION *pExtension, + INT elInstanceTag, + UINT alignAnchor, + UINT syntaxFlags, + AUDIO_OBJECT_TYPE aot, + SCHAR epConfig + ); + +#endif /* _BITENC_H */ |