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- /******************************************************************
- iLBC Speech Coder ANSI-C Source Code
- LPC_decode.h
- Copyright (C) The Internet Society (2004).
- All Rights Reserved.
- ******************************************************************/
- #ifndef __iLBC_LPC_DECODE_H
- #define __iLBC_LPC_DECODE_H
- void LSFinterpolate2a_dec(
- float *a, /* (o) lpc coefficients for a sub-frame */
- float *lsf1, /* (i) first lsf coefficient vector */
- float *lsf2, /* (i) second lsf coefficient vector */
- float coef, /* (i) interpolation weight */
- int length /* (i) length of lsf vectors */
- );
- void SimplelsfDEQ(
- float *lsfdeq, /* (o) dequantized lsf coefficients */
- int *index, /* (i) quantization index */
- int lpc_n /* (i) number of LPCs */
- );
- void DecoderInterpolateLSF(
- float *syntdenum, /* (o) synthesis filter coefficients */
- float *weightdenum, /* (o) weighting denumerator
- coefficients */
- float *lsfdeq, /* (i) dequantized lsf coefficients */
- int length, /* (i) length of lsf coefficient vector */
- iLBC_Dec_Inst_t *iLBCdec_inst
- /* (i) the decoder state structure */
- );
- #endif
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