| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| /**************************************************************************************** |
| Portions of this file are derived from the following 3GPP standard: |
| |
| 3GPP TS 26.173 |
| ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec |
| Available from http://www.3gpp.org |
| |
| (C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) |
| Permission to distribute, modify and use this file under the standard license |
| terms listed above has been obtained from the copyright holder. |
| ****************************************************************************************/ |
| /* |
| |
| Filename: e_pv_amrwbdec.h |
| Funtions: |
| |
| |
| Date: 05/03/2007 |
| |
| ------------------------------------------------------------------------------ |
| REVISION HISTORY |
| |
| |
| Description: |
| ------------------------------------------------------------------------------ |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| ; CONTINUE ONLY IF NOT ALREADY DEFINED |
| ----------------------------------------------------------------------------*/ |
| #ifndef E_PV_AMRWBDEC_H |
| #define E_PV_AMRWBDEC_H |
| |
| /*---------------------------------------------------------------------------- |
| ; INCLUDES |
| ----------------------------------------------------------------------------*/ |
| |
| #include "pvamrwbdecoder_cnst.h" /* coder constant parameters */ |
| #include "dtx.h" |
| |
| /*---------------------------------------------------------------------------- |
| ; MACROS |
| ; Define module specific macros here |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; DEFINES |
| ; Include all pre-processor statements here. |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; EXTERNAL VARIABLES REFERENCES |
| ; Declare variables used in this module but defined elsewhere |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; SIMPLE TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; ENUMERATED TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; STRUCTURES TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| |
| typedef struct |
| { |
| int16 old_exc[PIT_MAX + L_INTERPOL]; /* old excitation vector */ |
| int16 ispold[M]; /* old isp (immittance spectral pairs)*/ |
| int16 isfold[M]; /* old isf (frequency domain) */ |
| int16 isf_buf[L_MEANBUF * M]; /* isf buffer(frequency domain) */ |
| int16 past_isfq[M]; /* past isf quantizer */ |
| int16 tilt_code; /* tilt of code */ |
| int16 Q_old; /* old scaling factor */ |
| int16 Qsubfr[4]; /* old maximum scaling factor */ |
| int32 L_gc_thres; /* threshold for noise enhancer */ |
| int16 mem_syn_hi[M]; /* modified synthesis memory (MSB) */ |
| int16 mem_syn_lo[M]; /* modified synthesis memory (LSB) */ |
| int16 mem_deemph; /* speech deemph filter memory */ |
| int16 mem_sig_out[6]; /* hp50 filter memory for synthesis */ |
| int16 mem_oversamp[2 * L_FILT]; /* synthesis oversampled filter memory */ |
| int16 mem_syn_hf[M16k]; /* HF synthesis memory */ |
| int16 mem_hf[2 * L_FILT16k]; /* HF band-pass filter memory */ |
| int16 mem_hf2[2 * L_FILT16k]; /* HF band-pass filter memory */ |
| int16 mem_hf3[2 * L_FILT16k]; /* HF band-pass filter memory */ |
| int16 seed; /* random memory for frame erasure */ |
| int16 seed2; /* random memory for HF generation */ |
| int16 old_T0; /* old pitch lag */ |
| int16 old_T0_frac; /* old pitch fraction lag */ |
| int16 lag_hist[5]; |
| int16 dec_gain[23]; /* gain decoder memory */ |
| int16 seed3; /* random memory for lag concealment */ |
| int16 disp_mem[8]; /* phase dispersion memory */ |
| int16 mem_hp400[6]; /* hp400 filter memory for synthesis */ |
| |
| int16 prev_bfi; |
| int16 state; |
| int16 first_frame; |
| dtx_decState dtx_decSt; |
| int16 vad_hist; |
| |
| } Decoder_State; |
| |
| typedef struct |
| { |
| Decoder_State state; |
| int16 ScratchMem[L_SUBFR + L_SUBFR16k + ((L_SUBFR + M + M16k +1)<<1) + \ |
| (2*L_FRAME + 1) + PIT_MAX + L_INTERPOL + NB_SUBFR*(M+1) \ |
| + 3*(M+L_SUBFR) + M16k]; |
| } PV_AmrWbDec; |
| |
| |
| /*---------------------------------------------------------------------------- |
| ; END |
| ----------------------------------------------------------------------------*/ |
| #endif |
