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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 : q_gain_c.h
- * Purpose : Scalar quantization of the innovative
- * : codebook gain.
- *
- ********************************************************************************
- */
- #ifndef q_gain_c_h
- #define q_gain_c_h "$Id $"
-
- /*
- ********************************************************************************
- * INCLUDE FILES
- ********************************************************************************
- */
- #include "typedef.h"
- #include "mode.h"
- #include "gc_pred.h"
- /*
- ********************************************************************************
- * DECLARATION OF PROTOTYPES
- ********************************************************************************
- */
-
-
- /*--------------------------------------------------------------------------*
- * Function q_gain_code() *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
- * Scalar quantization of the innovative codebook gain. *
- * *
- * gc_pred() is used for MA prediction of the innovation energy *
- *--------------------------------------------------------------------------*/
- Word16 q_gain_code ( /* o : quantization index, Q0 */
- enum Mode mode, /* i : AMR mode */
- Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
- Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
- Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */
- Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
- /* (for MR122 MA predictor update) */
- Word16 *qua_ener /* o : quantized energy error, Q10 */
- /* (for other MA predictor update) */
- );
-
- #endif
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