| /** |
| * 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. |
| */ |
| |
| #include <AudioJitterBuffer.h> |
| #include <ImsMediaDataQueue.h> |
| #include <ImsMediaTimer.h> |
| #include <ImsMediaTrace.h> |
| |
| #define AUDIO_JITTER_BUFFER_MIN_SIZE (3) |
| #define AUDIO_JITTER_BUFFER_MAX_SIZE (9) |
| #define AUDIO_JITTER_BUFFER_START_SIZE (4) |
| #define GET_SEQ_GAP(a, b) ((uint16_t)(a) - (uint16_t)(b)) |
| |
| AudioJitterBuffer::AudioJitterBuffer() |
| { |
| mInitJitterBufferSize = AUDIO_JITTER_BUFFER_START_SIZE; |
| mMinJitterBufferSize = AUDIO_JITTER_BUFFER_MIN_SIZE; |
| mMaxJitterBufferSize = AUDIO_JITTER_BUFFER_MAX_SIZE; |
| AudioJitterBuffer::Reset(); |
| mBufferIgnoreSIDPacket = false; |
| mBufferImprovement = false; |
| } |
| |
| AudioJitterBuffer::~AudioJitterBuffer() {} |
| |
| void AudioJitterBuffer::Reset() |
| { |
| mNextJitterBufferSize = mCurrJitterBufferSize; |
| mLastPlayedSeqNum = 0; |
| mLastPlayedTimestamp = 0; |
| mIsReceivedFirst = false; |
| mDtxOn = false; |
| mSIDCount = 0; |
| mWaiting = false; |
| mDeleteCount = 0; |
| mBaseTimestamp = 0; |
| mBaseArrivalTime = 0; |
| mUpdateJitterBufferSize = 0; |
| mCheckUpdateJitterPacketCnt = 0; |
| mFourceToUpdateJitterBuffer = false; |
| mNeedToUpdateBasePacket = false; |
| mCanNotGetCount = 0; |
| mNullDataCount = 0; |
| BaseJitterBuffer::Reset(); |
| mJitterAnalyser.Reset(); |
| mJitterAnalyser.SetMinMaxJitterBufferSize(mMinJitterBufferSize, mMaxJitterBufferSize); |
| mCurrPlayingSeq = 0; |
| mBufferUpdateDuration = 0; |
| } |
| |
| void AudioJitterBuffer::SetJitterBufferSize(uint32_t nInit, uint32_t nMin, uint32_t nMax) |
| { |
| IMLOGD3("[SetJitterBufferSize] %02x, %02x, %02x", nInit, nMin, nMax); |
| |
| if (nMin > 0) |
| { |
| mMinJitterBufferSize = nMin; |
| } |
| |
| if (nMax > 0) |
| { |
| mMaxJitterBufferSize = nMax; |
| } |
| |
| if (nInit > 0) |
| { |
| if (nInit < mMinJitterBufferSize) |
| { |
| nInit = mMinJitterBufferSize; |
| } |
| |
| if (nInit > mMaxJitterBufferSize) |
| { |
| nInit = mMaxJitterBufferSize; |
| } |
| |
| mInitJitterBufferSize = nInit; |
| mCurrJitterBufferSize = mInitJitterBufferSize; |
| mNextJitterBufferSize = mInitJitterBufferSize; |
| } |
| |
| mJitterAnalyser.SetMinMaxJitterBufferSize(mMinJitterBufferSize, mMaxJitterBufferSize); |
| } |
| |
| void AudioJitterBuffer::SetJitterOptions( |
| uint32_t nReduceTH, uint32_t nStepSize, double zValue, bool bIgnoreSID, bool bImprovement) |
| { |
| // do it later |
| mBufferIgnoreSIDPacket = bIgnoreSID; |
| mBufferImprovement = bImprovement; |
| mJitterAnalyser.SetJitterOptions(nReduceTH, nStepSize, zValue); |
| } |
| |
| void AudioJitterBuffer::Add(ImsMediaSubType subtype, uint8_t* pbBuffer, uint32_t nBufferSize, |
| uint32_t nTimestamp, bool bMark, uint32_t nSeqNum, ImsMediaSubType nDataType, |
| uint32_t arrivalTime) |
| { |
| (void)nDataType; |
| |
| DataEntry currEntry = DataEntry(); |
| currEntry.subtype = subtype; |
| currEntry.pbBuffer = pbBuffer; |
| currEntry.nBufferSize = nBufferSize; |
| currEntry.nTimestamp = nTimestamp; |
| currEntry.bMark = bMark; |
| currEntry.nSeqNum = nSeqNum; |
| currEntry.bHeader = true; |
| currEntry.bValid = true; |
| currEntry.arrivalTime = arrivalTime; |
| |
| // non-voice issue when min buffer size is 10 (VT case) |
| if (mBufferImprovement == false && mCanNotGetCount > 500) |
| { |
| IMLOGD0("[Add] Refreshed"); |
| Reset(); |
| } |
| else if (mBufferImprovement) |
| { |
| if ((mCanNotGetCount > mMaxJitterBufferSize) && (mCanNotGetCount > mMinJitterBufferSize)) |
| { |
| IMLOGD0("[Add] Refreshed"); |
| CollectRxRtpStatus(nSeqNum, kRtpStatusDiscarded); |
| Reset(); |
| } |
| } |
| |
| int32_t jitter = 0; |
| |
| if (mBufferIgnoreSIDPacket == false) |
| { |
| jitter = mJitterAnalyser.CalculateTransitTimeDifference(nTimestamp, arrivalTime); |
| mBaseTimestamp = currEntry.nTimestamp; |
| mBaseArrivalTime = currEntry.arrivalTime; |
| mJitterAnalyser.UpdateBaseTimestamp(mBaseTimestamp, mBaseArrivalTime); |
| } |
| // TODO: remove mBufferIgnoreSIDPacket logic and the statements |
| else if ((mBufferIgnoreSIDPacket == true) && !IsSID(currEntry.pbBuffer, currEntry.nBufferSize)) |
| { |
| // first packet delay compensation |
| if ((mBaseTimestamp == 0 && mBaseArrivalTime == 0) || (mNeedToUpdateBasePacket == true)) |
| { |
| mBaseTimestamp = currEntry.nTimestamp; |
| mBaseArrivalTime = currEntry.arrivalTime; |
| mJitterAnalyser.UpdateBaseTimestamp(mBaseTimestamp, mBaseArrivalTime); |
| mNeedToUpdateBasePacket = false; |
| } |
| else if (mBaseTimestamp > currEntry.nTimestamp || mBaseArrivalTime > currEntry.arrivalTime) |
| { |
| // rounding case (more consider case) |
| mBaseTimestamp = currEntry.nTimestamp; |
| mBaseArrivalTime = currEntry.arrivalTime; |
| mJitterAnalyser.UpdateBaseTimestamp(mBaseTimestamp, mBaseArrivalTime); |
| } |
| else |
| { |
| // update case |
| if (currEntry.nTimestamp - mBaseTimestamp > currEntry.arrivalTime - mBaseArrivalTime) |
| { |
| mBaseTimestamp = currEntry.nTimestamp; |
| mBaseArrivalTime = currEntry.arrivalTime; |
| mJitterAnalyser.UpdateBaseTimestamp(mBaseTimestamp, mBaseArrivalTime); |
| } |
| else |
| { // compensation case |
| uint32_t temp = currEntry.arrivalTime; |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "Before compensation[%u], nSeqNum[%d]", temp, |
| currEntry.nSeqNum); |
| currEntry.arrivalTime = mBaseArrivalTime + (currEntry.nTimestamp - mBaseTimestamp); |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "After compensation[%u], delay[%u]", |
| currEntry.arrivalTime, temp - currEntry.arrivalTime); |
| } |
| } |
| |
| jitter = mJitterAnalyser.CalculateTransitTimeDifference(nTimestamp, arrivalTime); |
| } |
| |
| RtpPacket* packet = new RtpPacket(); |
| |
| if (nBufferSize == 0) |
| { |
| packet->rtpDataType = kRtpDataTypeNoData; |
| } |
| else |
| { |
| IsSID(currEntry.pbBuffer, currEntry.nBufferSize) ? packet->rtpDataType = kRtpDataTypeSid |
| : packet->rtpDataType = kRtpDataTypeNormal; |
| } |
| |
| packet->ssrc = mSsrc; |
| packet->seqNum = nSeqNum; |
| packet->jitter = jitter; |
| packet->arrival = ImsMediaTimer::GetTimeInMilliSeconds(); |
| mCallback->SendEvent(kCollectPacketInfo, kStreamRtpRx, reinterpret_cast<uint64_t>(packet)); |
| |
| if (nBufferSize == 0) |
| { |
| return; |
| } |
| |
| std::lock_guard<std::mutex> guard(mMutex); |
| |
| IMLOGD_PACKET7(IM_PACKET_LOG_JITTER, |
| "[Add] seq[%d], bMark[%d], TS[%d], size[%d] subtype[%d] queueSize[%d], arrivalTime[%u]", |
| nSeqNum, bMark, nTimestamp, nBufferSize, subtype, mDataQueue.GetCount() + 1, |
| arrivalTime); |
| |
| if (mDataQueue.GetCount() == 0) |
| { // jitter buffer is empty |
| mDataQueue.Add(&currEntry); |
| } |
| else |
| { |
| DataEntry* pEntry; |
| mDataQueue.GetLast(&pEntry); |
| |
| if (pEntry == nullptr) |
| { |
| return; |
| } |
| |
| // current data is the latest data |
| if (USHORT_SEQ_ROUND_COMPARE(nSeqNum, pEntry->nSeqNum)) |
| { |
| mDataQueue.Add(&currEntry); |
| } |
| else |
| { |
| // find the position of current data and insert current data to the correct position |
| mDataQueue.SetReadPosFirst(); |
| |
| for (int32_t i = 0; mDataQueue.GetNext(&pEntry); i++) |
| { |
| // late arrival packet |
| if (!USHORT_SEQ_ROUND_COMPARE(nSeqNum, pEntry->nSeqNum)) |
| { |
| mDataQueue.InsertAt(i, &currEntry); |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| bool AudioJitterBuffer::Get(ImsMediaSubType* psubtype, uint8_t** ppData, uint32_t* pnDataSize, |
| uint32_t* pnTimestamp, bool* pbMark, uint32_t* pnSeqNum, uint32_t* pnChecker) |
| { |
| if (mNullDataCount < 4) |
| { |
| mNullDataCount++; |
| IMLOGD1("[Get] mNullDataCount is [%d].", mNullDataCount); |
| |
| if (psubtype) |
| *psubtype = MEDIASUBTYPE_UNDEFINED; |
| if (ppData) |
| *ppData = nullptr; |
| if (pnDataSize) |
| *pnDataSize = 0; |
| if (pnTimestamp) |
| *pnTimestamp = 0; |
| if (pbMark) |
| *pbMark = false; |
| if (pnSeqNum) |
| *pnSeqNum = 0; |
| if (pnChecker) |
| *pnChecker = 0; |
| |
| return false; |
| } |
| |
| std::lock_guard<std::mutex> guard(mMutex); |
| |
| bool bWait = false; |
| DataEntry* pEntry = nullptr; |
| bool bForceToPlay = false; |
| mUpdateJitterBufferSize++; // add code for no dtx |
| mCheckUpdateJitterPacketCnt++; |
| int32_t nTimediff = 0; |
| |
| // determin bWait |
| if (mIsReceivedFirst == false) |
| { |
| bWait = true; |
| } |
| else if (mDtxOn && mDataQueue.GetCount() > 0) |
| { |
| if (mDataQueue.Get(&pEntry) && IsSID(pEntry->pbBuffer, pEntry->nBufferSize) == false) |
| { |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] bWait = True"); |
| bWait = true; |
| } |
| } |
| |
| // set current jitter buffer size |
| // when dtx occur, calculate nextJitterBufferSize. |
| if (mBufferImprovement == false) |
| { |
| if ((mWaiting == false && bWait == true) || mUpdateJitterBufferSize > 2 * 50) |
| { |
| uint32_t nPrev_jitterbufferSize = mCurrJitterBufferSize; |
| mCurrJitterBufferSize = mJitterAnalyser.GetNextJitterBufferSize( |
| mCurrJitterBufferSize, ImsMediaTimer::GetTimeInMilliSeconds()); |
| |
| if (mUpdateJitterBufferSize > 2 * 50) |
| { // 2s |
| nTimediff = ((int32_t)mCurrJitterBufferSize - (int32_t)nPrev_jitterbufferSize) * 20; |
| IMLOGD1("[Get] mFourceToUpdateJitterBuffer set. nTimediff[%d]", nTimediff); |
| mFourceToUpdateJitterBuffer = true; |
| } |
| mUpdateJitterBufferSize = 0; |
| } |
| |
| mWaiting = bWait; |
| } |
| else |
| { |
| if ((mWaiting == false && bWait == true) || mUpdateJitterBufferSize > 500) |
| { |
| // update mCurrJitterBufferSize |
| if (mCheckUpdateJitterPacketCnt > 50 * mBufferUpdateDuration) |
| { |
| mCurrJitterBufferSize = mJitterAnalyser.GetNextJitterBufferSize( |
| mCurrJitterBufferSize, ImsMediaTimer::GetTimeInMilliSeconds()); |
| mCheckUpdateJitterPacketCnt = 0; |
| } |
| |
| if (mUpdateJitterBufferSize > 500) |
| { |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] mFourceToUpdateJitterBuffer set"); |
| mFourceToUpdateJitterBuffer = true; |
| } |
| |
| mUpdateJitterBufferSize = 0; |
| } |
| |
| mWaiting = bWait; |
| } |
| // Wait case |
| if (bWait) |
| { |
| if (mDataQueue.Get(&pEntry)) |
| { |
| IMLOGD_PACKET5(IM_PACKET_LOG_JITTER, |
| "[Get] time[%u], arrivalTime[%u], nTS[%d], mBaseTimestamp[%u], " |
| "mBaseArrivalTime[%u]", |
| ImsMediaTimer::GetTimeInMilliSeconds(), pEntry->arrivalTime, pEntry->nTimestamp, |
| mBaseTimestamp, mBaseArrivalTime); |
| } |
| |
| if (mDataQueue.GetCount() == 0 || |
| ((mDataQueue.Get(&pEntry) && |
| (ImsMediaTimer::GetTimeInMilliSeconds() - pEntry->arrivalTime) < |
| ((mCurrJitterBufferSize - 1) * 20 + 10)) && |
| (mDataQueue.GetCount() <= mCurrJitterBufferSize))) |
| { |
| if (psubtype) |
| *psubtype = MEDIASUBTYPE_UNDEFINED; |
| if (ppData) |
| *ppData = nullptr; |
| if (pnDataSize) |
| *pnDataSize = 0; |
| if (pnTimestamp) |
| *pnTimestamp = 0; |
| if (pbMark) |
| *pbMark = false; |
| if (pnSeqNum) |
| *pnSeqNum = 0; |
| if (pnChecker) |
| *pnChecker = 0; |
| |
| if (mDataQueue.GetCount() > 0) |
| { |
| IMLOGD_PACKET5(IM_PACKET_LOG_JITTER, |
| "[Get] Wait - Seq[%u], CurrJBSize[%u], curr[%u], th[%u], QueueCount[%u]", |
| pEntry->nSeqNum, mCurrJitterBufferSize, |
| (uint32_t)(ImsMediaTimer::GetTimeInMilliSeconds() - pEntry->arrivalTime), |
| ((mCurrJitterBufferSize - 1) * 20 + 10), mDataQueue.GetCount()); |
| mCanNotGetCount++; |
| } |
| else |
| { |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Wait - empty"); |
| } |
| |
| return false; |
| } |
| |
| // the first frame of voice term |
| mCurrPlayingTS = pEntry->nTimestamp; |
| mCurrPlayingSeq = pEntry->nSeqNum; |
| } |
| |
| if (mDataQueue.Get(&pEntry) == true && pEntry->nTimestamp != mCurrPlayingTS && |
| ((mCurrPlayingTS - 10) < pEntry->nTimestamp) && |
| (pEntry->nTimestamp < (mCurrPlayingTS + 10))) |
| { |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] CurrPlaying nTimestamp Reset!"); |
| mCurrPlayingTS = pEntry->nTimestamp; |
| mCurrPlayingSeq = pEntry->nSeqNum; |
| } |
| |
| // delete very old data |
| while (mDataQueue.GetCount() > 0) |
| { |
| mDataQueue.Get(&pEntry); |
| |
| if (pEntry == nullptr) |
| { |
| return false; |
| } |
| |
| if (mDeleteCount > 4 && mDataQueue.GetCount() < mCurrJitterBufferSize + 1) |
| { |
| IMLOGD0("[Get] Resync"); |
| |
| if (mBufferImprovement == false) |
| { |
| uint32_t nTempBuferSize = (mCurrJitterBufferSize + mMinJitterBufferSize) / 2; |
| |
| if (mDataQueue.GetCount() > nTempBuferSize) |
| { |
| mCurrPlayingTS = pEntry->nTimestamp; |
| mCurrPlayingSeq = pEntry->nSeqNum; |
| } |
| else |
| { |
| mCurrPlayingTS = |
| pEntry->nTimestamp - (nTempBuferSize - mDataQueue.GetCount()) * 20; |
| mCurrPlayingSeq = 0; |
| } |
| } |
| else |
| { |
| uint32_t nTempBuferSize = |
| (mCurrJitterBufferSize + AUDIO_JITTER_BUFFER_MIN_SIZE) / 2; |
| |
| if (mDataQueue.GetCount() >= nTempBuferSize) |
| { |
| mCurrPlayingTS = pEntry->nTimestamp; |
| mCurrPlayingSeq = pEntry->nSeqNum; |
| } |
| else |
| { |
| mCurrPlayingTS = |
| pEntry->nTimestamp - (nTempBuferSize - mDataQueue.GetCount()) * 20; |
| mCurrPlayingSeq = 0; |
| } |
| } |
| |
| mNeedToUpdateBasePacket = true; |
| mDeleteCount = 0; |
| break; |
| } |
| |
| if (USHORT_TS_ROUND_COMPARE(pEntry->nTimestamp, mCurrPlayingTS) == false) |
| { |
| if (IsSID(pEntry->pbBuffer, pEntry->nBufferSize)) |
| { |
| mSIDCount++; |
| mDtxOn = true; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx On"); |
| } |
| else |
| { |
| mSIDCount = 0; |
| // mDtxOn = false; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx Off"); |
| } |
| |
| mDeleteCount++; |
| |
| if (mDtxOn == true) |
| { |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusNormal); |
| CollectJitterBufferStatus(mCurrJitterBufferSize * 20, mMaxJitterBufferSize * 20); |
| } |
| else |
| { |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusLate); |
| } |
| |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "[Get] delete TS[%d], PlayingTS[%d]", |
| pEntry->nTimestamp, mCurrPlayingTS); |
| mDataQueue.Delete(); |
| } |
| else |
| { |
| uint32_t timediff = pEntry->nTimestamp - mCurrPlayingTS; |
| mDeleteCount = 0; |
| |
| // timestamp compensation logic |
| if ((timediff > 0) && (timediff < 20)) |
| { |
| IMLOGD2("[Get] resync - TS[%d], PlayingTS[%d]", pEntry->nTimestamp, mCurrPlayingTS); |
| bForceToPlay = true; |
| } |
| |
| break; |
| } |
| } |
| |
| // decrease jitter buffer |
| if (mDtxOn && mSIDCount > 4 && mDataQueue.GetCount() > mCurrJitterBufferSize) |
| { |
| mDataQueue.Get(&pEntry); |
| if (pEntry && IsSID(pEntry->pbBuffer, pEntry->nBufferSize)) |
| { |
| IMLOGD_PACKET5(IM_PACKET_LOG_JITTER, |
| "[Get] Delete SID - seq[%d], bMark[%d], nTS[%d], curTS[%d], size[%d]", |
| pEntry->nSeqNum, pEntry->bMark, pEntry->nTimestamp, mCurrPlayingTS, |
| mDataQueue.GetCount()); |
| |
| mSIDCount++; |
| mDtxOn = true; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx On"); |
| |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusNormal); |
| CollectJitterBufferStatus(mCurrJitterBufferSize * 20, mMaxJitterBufferSize * 20); |
| mDataQueue.Delete(); |
| bForceToPlay = true; |
| } |
| } |
| |
| // add condition in case of changing Seq# & TS |
| if ((mCanNotGetCount > 10) && (mDataQueue.Get(&pEntry) == true) && |
| (pEntry->nTimestamp - mCurrPlayingTS > TS_ROUND_QUARD)) |
| { |
| IMLOGD4("[Get] TS changing case [ %d / %u / %u / %d ]", pEntry->nSeqNum, pEntry->nTimestamp, |
| mCurrPlayingTS, mDataQueue.GetCount()); |
| bForceToPlay = true; |
| } |
| |
| if (mFourceToUpdateJitterBuffer == true) |
| { |
| // removing delete packet in min JitterBuffer size |
| if (mDataQueue.GetCount() > mCurrJitterBufferSize + 1) |
| { |
| mDataQueue.Get(&pEntry); |
| |
| if (pEntry) |
| { |
| IMLOGD_PACKET5(IM_PACKET_LOG_JITTER, |
| "[Get] Delete Packets - seq[%d], bMark[%d], nTS[%d], curTS[%d], size[%d]", |
| pEntry->nSeqNum, pEntry->bMark, pEntry->nTimestamp, mCurrPlayingTS, |
| mDataQueue.GetCount()); |
| |
| if (IsSID(pEntry->pbBuffer, pEntry->nBufferSize)) |
| { |
| mSIDCount++; |
| mDtxOn = true; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx On"); |
| } |
| else |
| { |
| mSIDCount = 0; |
| mDtxOn = false; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx Off"); |
| } |
| |
| if (mDtxOn == true) |
| { |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusNormal); |
| CollectJitterBufferStatus( |
| mCurrJitterBufferSize * 20, mMaxJitterBufferSize * 20); |
| } |
| else |
| { |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusDiscarded); |
| } |
| |
| mDataQueue.Delete(); |
| bForceToPlay = true; |
| } |
| } |
| |
| if (mBufferImprovement == false) |
| { |
| // increase case |
| if ((mDataQueue.GetCount() < 2) || (mDataQueue.GetCount() < mCurrJitterBufferSize)) |
| { |
| IMLOGD3("[Get] increase queue size[%d], curr buffer[%d], nTimediff[%d]", |
| mDataQueue.GetCount(), mCurrJitterBufferSize, nTimediff); |
| |
| if (nTimediff > 0) |
| { |
| mCurrPlayingTS -= nTimediff; |
| mCurrPlayingSeq -= nTimediff / 20; |
| IMLOGD1("[Get] increase queue size [%d]", nTimediff / 20); |
| } |
| } |
| |
| // reset |
| mFourceToUpdateJitterBuffer = false; |
| mUpdateJitterBufferSize = 0; |
| } |
| else |
| { |
| mFourceToUpdateJitterBuffer = false; |
| mUpdateJitterBufferSize = 0; |
| |
| if ((mDataQueue.GetCount() < 2) || |
| (mDataQueue.GetCount() < mCurrJitterBufferSize - mMinJitterBufferSize)) |
| { |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] increase packet"); |
| return false; |
| } |
| } |
| } |
| |
| // get data and check the duplication |
| if (mDataQueue.Get(&pEntry) && pEntry->nSeqNum == mLastPlayedSeqNum) |
| { |
| IMLOGD_PACKET6(IM_PACKET_LOG_JITTER, |
| "[Get] duplicate - curTS[%d], seq[%d], Mark[%d], TS[%d], buffer[%d], size[%d]", |
| mCurrPlayingTS, pEntry->nSeqNum, pEntry->bMark, pEntry->nTimestamp, |
| pEntry->nBufferSize, mDataQueue.GetCount()); |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusDuplicated); |
| mDataQueue.Delete(); |
| mDeleteCount++; |
| } |
| |
| if (mDataQueue.Get(&pEntry) && pEntry != nullptr && |
| (pEntry->nTimestamp == mCurrPlayingTS || bForceToPlay || |
| (pEntry->nTimestamp < TS_ROUND_QUARD && mCurrPlayingTS > 0xFFFF))) |
| { |
| if (psubtype) |
| *psubtype = pEntry->subtype; |
| if (ppData) |
| *ppData = pEntry->pbBuffer; |
| if (pnDataSize) |
| *pnDataSize = pEntry->nBufferSize; |
| if (pnTimestamp) |
| *pnTimestamp = pEntry->nTimestamp; |
| if (pbMark) |
| *pbMark = pEntry->bMark; |
| if (pnSeqNum) |
| *pnSeqNum = pEntry->nSeqNum; |
| |
| mIsReceivedFirst = true; |
| |
| if (IsSID(pEntry->pbBuffer, pEntry->nBufferSize)) |
| { |
| mSIDCount++; |
| mDtxOn = true; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx On"); |
| } |
| else |
| { |
| mSIDCount = 0; |
| mDtxOn = false; |
| IMLOGD_PACKET0(IM_PACKET_LOG_JITTER, "[Get] Dtx Off"); |
| } |
| |
| IMLOGD_PACKET7(IM_PACKET_LOG_JITTER, |
| "[Get] OK - dtx mode[%d], curTS[%d], seq[%d], Mark[%d], TS[%d], buffer[%d], " |
| "size[%d]", |
| mDtxOn, mCurrPlayingTS, pEntry->nSeqNum, pEntry->bMark, pEntry->nTimestamp, |
| pEntry->nBufferSize, mDataQueue.GetCount()); |
| |
| mCurrPlayingTS = pEntry->nTimestamp + 20; |
| mCurrPlayingSeq = pEntry->nSeqNum + 1; |
| |
| if (mLastPlayedSeqNum > 0) |
| { |
| /** Report the loss gap if the loss gap is over 0 */ |
| uint16_t lostGap = GET_SEQ_GAP(pEntry->nSeqNum, mLastPlayedSeqNum); |
| |
| if (lostGap > 1) |
| { |
| uint16_t lostSeq = mLastPlayedSeqNum + 1; |
| SessionCallbackParameter* param = |
| new SessionCallbackParameter(kReportPacketLossGap, lostSeq, lostGap - 1); |
| mCallback->SendEvent(kCollectOptionalInfo, reinterpret_cast<uint64_t>(param), 0); |
| } |
| } |
| |
| mLastPlayedSeqNum = pEntry->nSeqNum; |
| mCanNotGetCount = 0; |
| CollectRxRtpStatus(pEntry->nSeqNum, kRtpStatusNormal); |
| CollectJitterBufferStatus(mCurrJitterBufferSize * 20, mMaxJitterBufferSize * 20); |
| return true; |
| } |
| else |
| { |
| // TODO: check EVS redundancy in channel aware mode |
| |
| if (mDtxOn == false) |
| { |
| mCanNotGetCount++; |
| } |
| |
| if (psubtype) |
| *psubtype = MEDIASUBTYPE_UNDEFINED; |
| if (ppData) |
| *ppData = nullptr; |
| if (pnDataSize) |
| *pnDataSize = 0; |
| if (pnTimestamp) |
| *pnTimestamp = 0; |
| if (pbMark) |
| *pbMark = false; |
| if (pnSeqNum) |
| *pnSeqNum = 0; |
| |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "[Get] fail - dtx mode[%d], curTS[%d]", mDtxOn, |
| mCurrPlayingTS); |
| |
| mCurrPlayingTS += 20; |
| mCurrPlayingSeq += 1; |
| return false; |
| } |
| |
| return false; |
| } |
| |
| bool AudioJitterBuffer::IsSID(uint8_t* pbBuffer, uint32_t nBufferSize) |
| { |
| // remove warning |
| (void)pbBuffer; |
| switch (mCodecType) |
| { |
| case kAudioCodecAmr: |
| case kAudioCodecAmrWb: |
| if (nBufferSize == 5) |
| return true; |
| else |
| return false; |
| case kAudioCodecEvs: |
| if ((nBufferSize == 6) || (nBufferSize == 5)) |
| return true; |
| else |
| return false; |
| case kAudioCodecPcmu: |
| case kAudioCodecPcma: |
| return false; |
| default: |
| IMLOGE1("[IsSID] DTX detect method is not defined for[%u] codec", mCodecType); |
| return false; |
| } |
| } |
| |
| void AudioJitterBuffer::CollectRxRtpStatus(int32_t seq, kRtpPacketStatus status) |
| { |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "[CollectRxRtpStatus] seq[%d], status[%d]", seq, status); |
| |
| if (mCallback != nullptr) |
| { |
| SessionCallbackParameter* param = |
| new SessionCallbackParameter(seq, status, ImsMediaTimer::GetTimeInMilliSeconds()); |
| mCallback->SendEvent(kCollectRxRtpStatus, reinterpret_cast<uint64_t>(param)); |
| } |
| } |
| void AudioJitterBuffer::CollectJitterBufferStatus(int32_t currSize, int32_t maxSize) |
| { |
| IMLOGD_PACKET2(IM_PACKET_LOG_JITTER, "[CollectJitterBufferStatus] currSize[%d], maxSize[%d]", |
| currSize, maxSize); |
| |
| if (mCallback != nullptr) |
| { |
| mCallback->SendEvent(kCollectJitterBufferSize, currSize, maxSize); |
| } |
| } |
