414 lines
8.4 KiB
C++
414 lines
8.4 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "acm_common_defs.h"
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#include "acm_gsmfr.h"
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#include "acm_neteq.h"
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#include "trace.h"
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#include "webrtc_neteq.h"
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#include "webrtc_neteq_help_macros.h"
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#ifdef WEBRTC_CODEC_GSMFR
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// NOTE! GSM-FR is not included in the open-source package. Modify this file or your codec
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// API to match the function call and name of used GSM-FR API file.
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// #include "gsmfr_interface.h"
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#endif
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namespace webrtc
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{
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#ifndef WEBRTC_CODEC_GSMFR
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ACMGSMFR::ACMGSMFR(
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WebRtc_Word16 /* codecID */)
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{
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return;
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}
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ACMGSMFR::~ACMGSMFR()
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{
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return;
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}
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WebRtc_Word16
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ACMGSMFR::InternalEncode(
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WebRtc_UWord8* /* bitStream */,
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WebRtc_Word16* /* bitStreamLenByte */)
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{
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return -1;
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}
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WebRtc_Word16
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ACMGSMFR::DecodeSafe(
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WebRtc_UWord8* /* bitStream */,
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WebRtc_Word16 /* bitStreamLenByte */,
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WebRtc_Word16* /* audio */,
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WebRtc_Word16* /* audioSamples */,
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WebRtc_Word8* /* speechType */)
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{
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return -1;
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}
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WebRtc_Word16
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ACMGSMFR::EnableDTX()
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{
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return -1;
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}
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WebRtc_Word16
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ACMGSMFR::DisableDTX()
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{
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return -1;
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}
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WebRtc_Word16
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ACMGSMFR::InternalInitEncoder(
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WebRtcACMCodecParams* /* codecParams */)
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{
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return -1;
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}
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WebRtc_Word16
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ACMGSMFR::InternalInitDecoder(
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WebRtcACMCodecParams* /* codecParams */)
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{
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return -1;
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}
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WebRtc_Word32
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ACMGSMFR::CodecDef(
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WebRtcNetEQ_CodecDef& /* codecDef */,
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const CodecInst& /* codecInst */)
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{
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return -1;
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}
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ACMGenericCodec*
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ACMGSMFR::CreateInstance(void)
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{
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return NULL;
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}
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WebRtc_Word16
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ACMGSMFR::InternalCreateEncoder()
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{
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return -1;
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}
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void
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ACMGSMFR::DestructEncoderSafe()
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{
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return;
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}
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WebRtc_Word16
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ACMGSMFR::InternalCreateDecoder()
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{
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return -1;
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}
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void
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ACMGSMFR::DestructDecoderSafe()
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{
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return;
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}
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void
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ACMGSMFR::InternalDestructEncoderInst(
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void* /* ptrInst */)
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{
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return;
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}
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WebRtc_Word16
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ACMGSMFR::UnregisterFromNetEqSafe(
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ACMNetEQ* /* netEq */,
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WebRtc_Word16 /* payloadType */)
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{
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return -1;
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}
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#else //===================== Actual Implementation =======================
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// Remove when integrating a real GSM FR wrapper
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extern WebRtc_Word16 WebRtcGSMFR_CreateEnc(GSMFR_encinst_t_** inst);
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extern WebRtc_Word16 WebRtcGSMFR_CreateDec(GSMFR_decinst_t_** inst);
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extern WebRtc_Word16 WebRtcGSMFR_FreeEnc(GSMFR_encinst_t_* inst);
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extern WebRtc_Word16 WebRtcGSMFR_FreeDec(GSMFR_decinst_t_* inst);
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extern WebRtc_Word16 WebRtcGSMFR_Encode(GSMFR_encinst_t_* encInst, WebRtc_Word16* input,
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WebRtc_Word16 len, WebRtc_Word16* output);
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extern WebRtc_Word16 WebRtcGSMFR_EncoderInit(GSMFR_encinst_t_* encInst, WebRtc_Word16 mode);
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extern WebRtc_Word16 WebRtcGSMFR_Decode(GSMFR_decinst_t_* decInst);
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extern WebRtc_Word16 WebRtcGSMFR_DecodeBwe(GSMFR_decinst_t_* decInst, WebRtc_Word16* input);
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extern WebRtc_Word16 WebRtcGSMFR_DecodePlc(GSMFR_decinst_t_* decInst);
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extern WebRtc_Word16 WebRtcGSMFR_DecoderInit(GSMFR_decinst_t_* decInst);
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ACMGSMFR::ACMGSMFR(
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WebRtc_Word16 codecID):
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_encoderInstPtr(NULL),
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_decoderInstPtr(NULL)
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{
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_codecID = codecID;
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_hasInternalDTX = true;
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return;
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}
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ACMGSMFR::~ACMGSMFR()
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{
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if(_encoderInstPtr != NULL)
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{
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WebRtcGSMFR_FreeEnc(_encoderInstPtr);
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_encoderInstPtr = NULL;
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}
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if(_decoderInstPtr != NULL)
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{
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WebRtcGSMFR_FreeDec(_decoderInstPtr);
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_decoderInstPtr = NULL;
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}
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return;
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}
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WebRtc_Word16
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ACMGSMFR::InternalEncode(
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WebRtc_UWord8* bitStream,
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WebRtc_Word16* bitStreamLenByte)
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{
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*bitStreamLenByte = WebRtcGSMFR_Encode(_encoderInstPtr,
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&_inAudio[_inAudioIxRead], _frameLenSmpl, (WebRtc_Word16*)bitStream);
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// increment the read index this tell the caller that how far
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// we have gone forward in reading the audio buffer
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_inAudioIxRead += _frameLenSmpl;
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return *bitStreamLenByte;
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}
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WebRtc_Word16
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ACMGSMFR::DecodeSafe(
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WebRtc_UWord8* /* bitStream */,
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WebRtc_Word16 /* bitStreamLenByte */,
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WebRtc_Word16* /* audio */,
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WebRtc_Word16* /* audioSamples */,
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WebRtc_Word8* /* speechType */)
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{
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return 0;
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}
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WebRtc_Word16
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ACMGSMFR::EnableDTX()
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{
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if(_dtxEnabled)
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{
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return 0;
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}
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else if(_encoderExist)
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{
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if(WebRtcGSMFR_EncoderInit(_encoderInstPtr, 1) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"EnableDTX: cannot init encoder for GSMFR");
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return -1;
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}
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_dtxEnabled = true;
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return 0;
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}
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else
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{
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return -1;
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}
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}
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WebRtc_Word16
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ACMGSMFR::DisableDTX()
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{
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if(!_dtxEnabled)
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{
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return 0;
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}
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else if(_encoderExist)
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{
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if(WebRtcGSMFR_EncoderInit(_encoderInstPtr, 0) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"DisableDTX: cannot init encoder for GSMFR");
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return -1;
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}
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_dtxEnabled = false;
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return 0;
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}
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else
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{
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// encoder doesn't exists, therefore disabling is harmless
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return 0;
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}
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}
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WebRtc_Word16
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ACMGSMFR::InternalInitEncoder(
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WebRtcACMCodecParams* codecParams)
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{
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if (WebRtcGSMFR_EncoderInit(_encoderInstPtr, ((codecParams->enableDTX)? 1:0)) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"InternalInitEncoder: cannot init encoder for GSMFR");
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}
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return 0;
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}
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WebRtc_Word16
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ACMGSMFR::InternalInitDecoder(
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WebRtcACMCodecParams* /* codecParams */)
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{
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if (WebRtcGSMFR_DecoderInit(_decoderInstPtr) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"InternalInitDecoder: cannot init decoder for GSMFR");
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return -1;
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}
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return 0;
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}
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WebRtc_Word32
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ACMGSMFR::CodecDef(
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WebRtcNetEQ_CodecDef& codecDef,
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const CodecInst& codecInst)
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{
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if (!_decoderInitialized)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"CodecDef: decoder is not initialized for GSMFR");
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return -1;
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}
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// Fill up the structure by calling
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// "SET_CODEC_PAR" & "SET_GSMFR_FUNCTION."
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// Then call NetEQ to add the codec to it's
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// database.
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SET_CODEC_PAR((codecDef), kDecoderGSMFR, codecInst.pltype,
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_decoderInstPtr, 8000);
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SET_GSMFR_FUNCTIONS((codecDef));
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return 0;
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}
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ACMGenericCodec*
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ACMGSMFR::CreateInstance(void)
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{
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return NULL;
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}
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WebRtc_Word16
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ACMGSMFR::InternalCreateEncoder()
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{
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if (WebRtcGSMFR_CreateEnc(&_encoderInstPtr) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"InternalCreateEncoder: cannot create instance for GSMFR encoder");
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return -1;
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}
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return 0;
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}
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void
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ACMGSMFR::DestructEncoderSafe()
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{
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if(_encoderInstPtr != NULL)
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{
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WebRtcGSMFR_FreeEnc(_encoderInstPtr);
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_encoderInstPtr = NULL;
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}
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_encoderExist = false;
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_encoderInitialized = false;
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}
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WebRtc_Word16
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ACMGSMFR::InternalCreateDecoder()
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{
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if (WebRtcGSMFR_CreateDec(&_decoderInstPtr) < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"InternalCreateDecoder: cannot create instance for GSMFR decoder");
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return -1;
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}
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return 0;
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}
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void
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ACMGSMFR::DestructDecoderSafe()
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{
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if(_decoderInstPtr != NULL)
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{
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WebRtcGSMFR_FreeDec(_decoderInstPtr);
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_decoderInstPtr = NULL;
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}
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_decoderExist = false;
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_decoderInitialized = false;
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}
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void
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ACMGSMFR::InternalDestructEncoderInst(
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void* ptrInst)
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{
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if(ptrInst != NULL)
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{
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WebRtcGSMFR_FreeEnc((GSMFR_encinst_t_*)ptrInst);
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}
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return;
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}
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WebRtc_Word16
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ACMGSMFR::UnregisterFromNetEqSafe(
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ACMNetEQ* netEq,
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WebRtc_Word16 payloadType)
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{
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if(payloadType != _decoderParams.codecInstant.pltype)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, _uniqueID,
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"Cannot unregister codec: payload-type does not match \
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the stored payload type",
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_decoderParams.codecInstant.plname,
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payloadType,
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_decoderParams.codecInstant.pltype);
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return -1;
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}
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return netEq->RemoveCodec(kDecoderGSMFR);
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}
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#endif
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} // namespace webrtc
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