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Diffstat (limited to 'media/libstagefright/codecs/amrnb/dec/src/sp_dec.h')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/dec/src/sp_dec.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/dec/src/sp_dec.h b/media/libstagefright/codecs/amrnb/dec/src/sp_dec.h new file mode 100644 index 0000000..3150feb --- /dev/null +++ b/media/libstagefright/codecs/amrnb/dec/src/sp_dec.h @@ -0,0 +1,113 @@ +/* ------------------------------------------------------------------ + * 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 |