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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 BASE_JITTER_BUFFER_H_INCLUDEED
#define BASE_JITTER_BUFFER_H_INCLUDEED
#include <ImsMediaDataQueue.h>
#include <BaseSessionCallback.h>
#include <mutex>
/*!
* @class BaseJitterBuffer
*/
class BaseJitterBuffer
{
public:
BaseJitterBuffer();
virtual ~BaseJitterBuffer();
virtual void SetSessionCallback(BaseSessionCallback* callback);
/**
* @brief Set the ssrc of the receiving stream
*/
virtual void SetSsrc(uint32_t ssrc);
/**
* @brief Set the codec type
*/
virtual void SetCodecType(uint32_t type);
virtual void SetJitterBufferSize(uint32_t nInit, uint32_t nMin, uint32_t nMax);
virtual void SetJitterOptions(
uint32_t nReduceTH, uint32_t nStepSize, double zValue, bool bIgnoreSID);
virtual uint32_t GetCount();
virtual void Reset();
virtual void Delete();
/**
* @brief Add data frame to jitter buffer for dejittering
*
* @param subtype The subtype of data stored in the queue. It can be various subtype according
* to the characteristics of the given data
* @param data The data buffer
* @param dataSize The size of data
* @param timestamp The timestamp of data, it can be milliseconds unit or rtp timestamp unit
* @param mark It is true when the data has marker bit set
* @param seq The sequence number of data. it is 0 when there is no valid sequence number set
* @param dataType The additional data type for the video frames
* @param arrivalTime The arrival time of the packet in milliseconds unit
*/
virtual void Add(ImsMediaSubType subtype, uint8_t* data, uint32_t dataSize, uint32_t timestamp,
bool mark, uint32_t seq,
/** TODO: remove deprecated argument dataType */
ImsMediaSubType dataType = ImsMediaSubType::MEDIASUBTYPE_UNDEFINED,
uint32_t arrivalTime = 0) = 0;
/**
* @brief Get data frame from the jitter buffer
*
* @param subtype The subtype of data stored in the queue. It can be various subtype according
* to the characteristics of the given data
* @param data The data buffer
* @param dataSize The size of data
* @param timestamp The timestamp of data, it can be milliseconds unit or rtp timestamp unit
* @param mark It is true when the data has marker bit set
* @param seq The sequence number of data. it is 0 when there is no valid sequence number set
* @param currentTime The current timestamp of this method invoked with milliseconds unit
*/
virtual bool Get(ImsMediaSubType* psubtype, uint8_t** ppData, uint32_t* pnDataSize,
uint32_t* ptimestamp, bool* pmark, uint32_t* pnSeqNum, uint32_t currentTime) = 0;
protected:
BaseSessionCallback* mCallback;
bool mFirstFrameReceived;
uint32_t mSsrc;
uint32_t mCodecType;
ImsMediaDataQueue mDataQueue;
std::mutex mMutex;
uint32_t mInitJitterBufferSize;
uint32_t mMinJitterBufferSize;
uint32_t mMaxJitterBufferSize;
bool mNewInputData;
uint16_t mLastPlayedSeqNum;
uint32_t mLastPlayedTimestamp;
uint32_t mMaxSaveFrameNum;
};
#endif
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