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Diffstat (limited to 'libAACenc/src/quantize.h')
| -rw-r--r-- | libAACenc/src/quantize.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/libAACenc/src/quantize.h b/libAACenc/src/quantize.h new file mode 100644 index 0000000..8568ef7 --- /dev/null +++ b/libAACenc/src/quantize.h @@ -0,0 +1,56 @@ +/******************************** 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: Quantization + +******************************************************************************/ +#ifndef _QUANTIZE_H_ +#define _QUANTIZE_H_ + +#include "common_fix.h" + +/* quantizing */ + +#define MAX_QUANT 8191 + +void FDKaacEnc_QuantizeSpectrum(INT sfbCnt, + INT maxSfbPerGroup, + INT sfbPerGroup, + INT *sfbOffset, FIXP_DBL *mdctSpectrum, + INT globalGain, INT *scalefactors, + SHORT *quantizedSpectrum); + +FIXP_DBL FDKaacEnc_calcSfbDist(FIXP_DBL *mdctSpectrum, + SHORT *quantSpectrum, + INT noOfLines, + INT gain); + +void FDKaacEnc_calcSfbQuantEnergyAndDist(FIXP_DBL *mdctSpectrum, + SHORT *quantSpectrum, + INT noOfLines, + INT gain, + FIXP_DBL *en, + FIXP_DBL *dist); + +#endif /* _QUANTIZE_H_ */ |