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/* ------------------------------------------------------------------
* Copyright (C) 2009 Martin Storsjo
*
* 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.
* -------------------------------------------------------------------
*/
#define AMRNB_WRAPPER_INTERNAL
#include <sp_dec.h>
#include <amrdecode.h>
#include <amrencode.h>
#include "interf_dec.h"
#include "interf_enc.h"
#include <stdlib.h>
void* Decoder_Interface_init(void) {
void* ptr = NULL;
GSMInitDecode(&ptr, (int8*)"Decoder");
return ptr;
}
void Decoder_Interface_exit(void* state) {
GSMDecodeFrameExit(&state);
}
void Decoder_Interface_Decode(void* state, const unsigned char* in, short* out, int bfi) {
unsigned char type = (in[0] >> 3) & 0x0f;
in++;
AMRDecode(state, (enum Frame_Type_3GPP) type, (UWord8*) in, out, MIME_IETF);
}
struct encoder_state {
void* encCtx;
void* pidSyncCtx;
};
void* Encoder_Interface_init(int dtx) {
struct encoder_state* state = (struct encoder_state*) malloc(sizeof(struct encoder_state));
AMREncodeInit(&state->encCtx, &state->pidSyncCtx, dtx);
return state;
}
void Encoder_Interface_exit(void* s) {
struct encoder_state* state = (struct encoder_state*) s;
AMREncodeExit(&state->encCtx, &state->pidSyncCtx);
free(state);
}
int Encoder_Interface_Encode(void* s, enum Mode mode, const short* speech, unsigned char* out, int forceSpeech) {
struct encoder_state* state = (struct encoder_state*) s;
enum Frame_Type_3GPP frame_type = (enum Frame_Type_3GPP) mode;
int ret = AMREncode(state->encCtx, state->pidSyncCtx, mode, (Word16*) speech, out, &frame_type, AMR_TX_IETF);
out[0] |= 0x04;
return ret;
}
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