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/**
* Copyright (C) 2022 The Android Open Source Project
*
* 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.
*/
#ifndef AUDIO_RTP_PAYLOAD_DECODER_NODE_H
#define AUDIO_RTP_PAYLOAD_DECODER_NODE_H
#include <ImsMediaDefine.h>
#include <BaseNode.h>
#include <ImsMediaBitReader.h>
#include <ImsMediaBitWriter.h>
/**
* @brief this class is to decode the AMR/AMR-WB/EVS encoded rtp payload header and
* send payload to next node.
*
*/
class AudioRtpPayloadDecoderNode : public BaseNode
{
public:
AudioRtpPayloadDecoderNode(BaseSessionCallback* callback = nullptr);
virtual ~AudioRtpPayloadDecoderNode();
virtual kBaseNodeId GetNodeId();
virtual ImsMediaResult Start();
virtual void Stop();
virtual bool IsRunTime();
virtual bool IsSourceNode();
virtual void SetConfig(void* config);
virtual bool IsSameConfig(void* config);
virtual void OnDataFromFrontNode(ImsMediaSubType subtype, uint8_t* pData, uint32_t nDataSize,
uint32_t nTimestamp, bool bMark, uint32_t nSeqNum,
ImsMediaSubType nDataType = ImsMediaSubType::MEDIASUBTYPE_UNDEFINED,
uint32_t arrivalTime = 0);
private:
void DecodePayloadAmr(uint8_t* pData, uint32_t nDataSize, uint32_t nTimestamp, uint32_t nSeqNum,
uint32_t arrivalTime);
void DecodePayloadEvs(uint8_t* pData, uint32_t nDataSize, uint32_t nTimeStamp, bool bMark,
uint32_t nSeqNum, uint32_t arrivalTime);
bool ProcessCMRForEVS(kRtpPyaloadHeaderMode eEVSPayloadHeaderMode, kEvsCmrCodeType cmr_t,
kEvsCmrCodeDefine cmr_d);
private:
int32_t mCodecType;
bool mOctetAligned;
uint8_t mPayload[MAX_AUDIO_PAYLOAD_SIZE];
std::list<uint32_t> mListFrameType;
ImsMediaBitReader mBitReader;
ImsMediaBitWriter mBitWriter;
uint32_t mPrevCMR;
int32_t mEvsBandwidth;
kEvsCodecMode mEvsCodecMode;
kRtpPyaloadHeaderMode mEvsPayloadHeaderMode;
kEvsBitrate mEvsMode;
int32_t mCoreEvsMode;
int8_t mEvsOffset;
int32_t EvsChAOffset;
};
#endif
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