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diff --git a/audio_codec/libamr/dec_util.h b/audio_codec/libamr/dec_util.h new file mode 100644 index 0000000..0d5c5bd --- a/dev/null +++ b/audio_codec/libamr/dec_util.h @@ -0,0 +1,33 @@ +/* + *=================================================================== + * 3GPP AMR Wideband Floating-point Speech Codec + *=================================================================== + */ +#ifndef DEC_UTIL_H +#define DEC_UTIL_H + +#include "typedef.h" +#include "dec_main.h" + +Word16 D_UTIL_random(Word16 *seed); + +Word32 D_UTIL_pow2(Word16 exponant, Word16 fraction); +Word16 D_UTIL_norm_l(Word32 L_var1); +Word16 D_UTIL_norm_s(Word16 var1); +Word32 D_UTIL_dot_product12(Word16 x[], Word16 y[], Word16 lg, Word16 *exp); +void D_UTIL_normalised_inverse_sqrt(Word32 *frac, Word16 *exp); +Word32 D_UTIL_inverse_sqrt(Word32 L_x); +void D_UTIL_log2(Word32 L_x, Word16 *exponent, Word16 *fraction); +void D_UTIL_l_extract(Word32 L_32, Word16 *hi, Word16 *lo); +Word32 D_UTIL_mpy_32_16(Word16 hi, Word16 lo, Word16 n); +Word32 D_UTIL_mpy_32(Word16 hi1, Word16 lo1, Word16 hi2, Word16 lo2); +Word16 D_UTIL_saturate(Word32 inp); +void D_UTIL_signal_up_scale(Word16 x[], Word16 lg, Word16 exp); +void D_UTIL_signal_down_scale(Word16 x[], Word16 lg, Word16 exp); +void D_UTIL_dec_synthesis(Word16 Aq[], Word16 exc[], Word16 Q_new, + Word16 synth16k[], Word16 prms, Word16 HfIsf[], + Word16 mode, Word16 newDTXState, Word16 bfi, + Decoder_State *st); +void D_UTIL_preemph(Word16 x[], Word16 mu, Word16 lg, Word16 *mem); + +#endif |