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- /*
- ********************************************************************************
- *
- * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
- * R99 Version 3.3.0
- * REL-4 Version 4.1.0
- *
- ********************************************************************************
- *
- * File : spreproc.h
- * Purpose : Subframe preprocessing
- *
- ********************************************************************************
- */
- #ifndef spreproc_h
- #define spreproc_h "$Id $"
-
- /*
- ********************************************************************************
- * INCLUDE FILES
- ********************************************************************************
- */
- #include "cnst.h"
- #include "mode.h"
- #include "typedef.h"
- /*
- ********************************************************************************
- * DECLARATION OF PROTOTYPES
- ********************************************************************************
- */
- int subframePreProc(
- enum Mode mode, /* i : coder mode */
- const Word16 gamma1[], /* i : spectral exp. factor 1 */
- const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
- const Word16 gamma2[], /* i : spectral exp. factor 2 */
- Word16 *A, /* i : A(z) unquantized for the 4 subframes */
- Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
- Word16 *speech, /* i : speech segment */
- Word16 *mem_err, /* i : pointer to error signal */
- Word16 *mem_w0, /* i : memory of weighting filter */
- Word16 *zero, /* i : pointer to zero vector */
- Word16 ai_zero[], /* o : history of weighted synth. filter */
- Word16 exc[], /* o : long term prediction residual */
- Word16 h1[], /* o : impulse response */
- Word16 xn[], /* o : target vector for pitch search */
- Word16 res2[], /* o : long term prediction residual */
- Word16 error[] /* o : error of LPC synthesis filter */
- );
- #endif
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