| /* ------------------------------------------------------------------ |
| * 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 26.073 |
| ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec |
| Available from http://www.3gpp.org |
| |
| (C) 2004, 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. |
| ****************************************************************************************/ |
| /* |
| ***************************************************************************** |
| * |
| * GSM AMR speech codec Version 2.0.0 February 8, 1999 |
| * |
| ***************************************************************************** |
| * |
| * File : sp_dec.h |
| * Purpose : Decoding and post filtering of one speech frame. |
| * |
| |
| Description: Replaced "int" and/or "char" with OSCL defined types. |
| |
| ***************************************************************************** |
| */ |
| #ifndef sp_dec_h |
| #define sp_dec_h "$Id $" |
| |
| /* |
| ***************************************************************************** |
| * INCLUDE FILES |
| ***************************************************************************** |
| */ |
| #include "typedef.h" |
| #include "cnst.h" |
| #include "dec_amr.h" |
| #include "pstfilt.h" |
| #include "post_pro.h" |
| #include "mode.h" |
| |
| /* |
| ***************************************************************************** |
| * DEFINITION OF DATA TYPES |
| ***************************************************************************** |
| */ |
| typedef struct |
| { |
| Decoder_amrState decoder_amrState; |
| Post_FilterState post_state; |
| Post_ProcessState postHP_state; |
| enum Mode prev_mode; |
| } Speech_Decode_FrameState; |
| |
| /* |
| ***************************************************************************** |
| * DECLARATION OF PROTOTYPES |
| ***************************************************************************** |
| */ |
| |
| #if defined(__cplusplus) |
| extern "C" |
| { |
| #endif |
| Word16 GSMInitDecode(void **state_data, |
| Word8 *id); |
| /* initialize one instance of the speech decoder |
| Stores pointer to filter status struct in *st. This pointer has to |
| be passed to Speech_Decode_Frame in each call. |
| returns 0 on success |
| */ |
| |
| Word16 Speech_Decode_Frame_reset(void *state_data); |
| /* reset speech decoder (i.e. set state memory to zero) |
| returns 0 on success |
| */ |
| |
| void GSMDecodeFrameExit(void **state_data); |
| /* de-initialize speech decoder (i.e. free status struct) |
| stores NULL in *s |
| */ |
| |
| void GSMFrameDecode( |
| Speech_Decode_FrameState *st, /* io: post filter states */ |
| enum Mode mode, /* i : AMR mode */ |
| Word16 *serial, /* i : serial bit stream */ |
| enum RXFrameType frame_type, /* i : Frame type */ |
| Word16 *synth /* o : synthesis speech (postfiltered */ |
| /* output) */ |
| ); |
| /* return 0 on success |
| */ |
| #if defined(__cplusplus) |
| } |
| #endif |
| #endif |
