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Diffstat (limited to 'media/libstagefright/codecs/amrwb/src/e_pv_amrwbdec.h')
| -rw-r--r-- | media/libstagefright/codecs/amrwb/src/e_pv_amrwbdec.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrwb/src/e_pv_amrwbdec.h b/media/libstagefright/codecs/amrwb/src/e_pv_amrwbdec.h new file mode 100644 index 0000000..251a3ce --- /dev/null +++ b/media/libstagefright/codecs/amrwb/src/e_pv_amrwbdec.h @@ -0,0 +1,136 @@ +/* ------------------------------------------------------------------ + * 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 |