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215 lines
10 KiB
C++
215 lines
10 KiB
C++
//
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// AudioMixerClientData.cpp
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// assignment-client/src/audio
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//
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// Created by Stephen Birarda on 10/18/13.
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// Copyright 2013 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include <QDebug>
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#include <PacketHeaders.h>
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#include <UUID.h>
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#include "InjectedAudioRingBuffer.h"
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#include "AudioMixer.h"
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#include "AudioMixerClientData.h"
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AudioMixerClientData::AudioMixerClientData() :
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_ringBuffers(),
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_outgoingMixedAudioSequenceNumber(0)
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{
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}
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AudioMixerClientData::~AudioMixerClientData() {
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QHash<QUuid, PositionalAudioRingBuffer*>::ConstIterator i, end = _ringBuffers.constEnd();
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for (i = _ringBuffers.constBegin(); i != end; i++) {
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// delete this attached InboundAudioStream
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delete i.value();
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}
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}
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AvatarAudioRingBuffer* AudioMixerClientData::getAvatarAudioRingBuffer() const {
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if (_ringBuffers.contains(QUuid())) {
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return (AvatarAudioRingBuffer*)_ringBuffers.value(QUuid());
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}
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// no mic stream found - return NULL
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return NULL;
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}
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int AudioMixerClientData::parseData(const QByteArray& packet) {
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PacketType packetType = packetTypeForPacket(packet);
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if (packetType == PacketTypeAudioStreamStats) {
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const char* dataAt = packet.data();
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// skip over header, appendFlag, and num stats packed
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dataAt += (numBytesForPacketHeader(packet) + sizeof(quint8) + sizeof(quint16));
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// read the downstream audio stream stats
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memcpy(&_downstreamAudioStreamStats, dataAt, sizeof(AudioStreamStats));
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dataAt += sizeof(AudioStreamStats);
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return dataAt - packet.data();
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} else {
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PositionalAudioRingBuffer* matchingStream = NULL;
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if (packetType == PacketTypeMicrophoneAudioWithEcho
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|| packetType == PacketTypeMicrophoneAudioNoEcho
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|| packetType == PacketTypeSilentAudioFrame) {
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QUuid nullUUID = QUuid();
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if (!_ringBuffers.contains(nullUUID)) {
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// we don't have a mic stream yet, so add it
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// read the channel flag to see if our stream is stereo or not
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const char* channelFlagAt = packet.constData() + numBytesForPacketHeader(packet) + sizeof(quint16);
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quint8 channelFlag = *(reinterpret_cast<const quint8*>(channelFlagAt));
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bool isStereo = channelFlag == 1;
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_ringBuffers.insert(nullUUID,
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matchingStream = new AvatarAudioRingBuffer(isStereo, AudioMixer::getUseDynamicJitterBuffers()));
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} else {
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matchingStream = _ringBuffers.value(nullUUID);
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}
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} else if (packetType == PacketTypeInjectAudio) {
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// this is injected audio
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// grab the stream identifier for this injected audio
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int bytesBeforeStreamIdentifier = numBytesForPacketHeader(packet) + sizeof(quint16);
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QUuid streamIdentifier = QUuid::fromRfc4122(packet.mid(bytesBeforeStreamIdentifier, NUM_BYTES_RFC4122_UUID));
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if (!_ringBuffers.contains(streamIdentifier)) {
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_ringBuffers.insert(streamIdentifier,
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matchingStream = new InjectedAudioRingBuffer(streamIdentifier, AudioMixer::getUseDynamicJitterBuffers()));
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} else {
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matchingStream = _ringBuffers.value(streamIdentifier);
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}
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}
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return matchingStream->parseData(packet);
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}
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return 0;
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}
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void AudioMixerClientData::sendAudioStreamStatsPackets(const SharedNodePointer& destinationNode) {
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char packet[MAX_PACKET_SIZE];
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NodeList* nodeList = NodeList::getInstance();
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// The append flag is a boolean value that will be packed right after the header. The first packet sent
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// inside this method will have 0 for this flag, while every subsequent packet will have 1 for this flag.
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// The sole purpose of this flag is so the client can clear its map of injected audio stream stats when
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// it receives a packet with an appendFlag of 0. This prevents the buildup of dead audio stream stats in the client.
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quint8 appendFlag = 0;
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// pack header
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int numBytesPacketHeader = populatePacketHeader(packet, PacketTypeAudioStreamStats);
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char* headerEndAt = packet + numBytesPacketHeader;
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// calculate how many stream stat structs we can fit in each packet
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const int numStreamStatsRoomFor = (MAX_PACKET_SIZE - numBytesPacketHeader - sizeof(quint8) - sizeof(quint16)) / sizeof(AudioStreamStats);
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// pack and send stream stats packets until all ring buffers' stats are sent
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int numStreamStatsRemaining = _ringBuffers.size();
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QHash<QUuid, PositionalAudioRingBuffer*>::ConstIterator ringBuffersIterator = _ringBuffers.constBegin();
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while (numStreamStatsRemaining > 0) {
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char* dataAt = headerEndAt;
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// pack the append flag
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memcpy(dataAt, &appendFlag, sizeof(quint8));
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appendFlag = 1;
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dataAt += sizeof(quint8);
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// calculate and pack the number of stream stats to follow
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quint16 numStreamStatsToPack = std::min(numStreamStatsRemaining, numStreamStatsRoomFor);
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memcpy(dataAt, &numStreamStatsToPack, sizeof(quint16));
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dataAt += sizeof(quint16);
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// pack the calculated number of stream stats
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for (int i = 0; i < numStreamStatsToPack; i++) {
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AudioStreamStats streamStats = ringBuffersIterator.value()->updateSeqHistoryAndGetAudioStreamStats();
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memcpy(dataAt, &streamStats, sizeof(AudioStreamStats));
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dataAt += sizeof(AudioStreamStats);
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ringBuffersIterator++;
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}
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numStreamStatsRemaining -= numStreamStatsToPack;
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// send the current packet
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nodeList->writeDatagram(packet, dataAt - packet, destinationNode);
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}
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}
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QString AudioMixerClientData::getAudioStreamStatsString() const {
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QString result;
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AudioStreamStats streamStats = _downstreamAudioStreamStats;
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result += "DOWNSTREAM.desired:" + QString::number(streamStats._ringBufferDesiredJitterBufferFrames)
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+ " available_avg_10s:" + QString::number(streamStats._ringBufferFramesAvailableAverage)
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+ " available:" + QString::number(streamStats._ringBufferFramesAvailable)
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+ " starves:" + QString::number(streamStats._ringBufferStarveCount)
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+ " not_mixed:" + QString::number(streamStats._ringBufferConsecutiveNotMixedCount)
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+ " overflows:" + QString::number(streamStats._ringBufferOverflowCount)
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+ " silents_dropped: ?"
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+ " lost%:" + QString::number(streamStats._packetStreamStats.getLostRate() * 100.0f, 'f', 2)
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+ " lost%_30s:" + QString::number(streamStats._packetStreamWindowStats.getLostRate() * 100.0f, 'f', 2)
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+ " min_gap:" + formatUsecTime(streamStats._timeGapMin)
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+ " max_gap:" + formatUsecTime(streamStats._timeGapMax)
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+ " avg_gap:" + formatUsecTime(streamStats._timeGapAverage)
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+ " min_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMin)
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+ " max_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMax)
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+ " avg_gap_30s:" + formatUsecTime(streamStats._timeGapWindowAverage);
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AvatarAudioRingBuffer* avatarRingBuffer = getAvatarAudioRingBuffer();
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if (avatarRingBuffer) {
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AudioStreamStats streamStats = avatarRingBuffer->getAudioStreamStats();
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result += " UPSTREAM.mic.desired:" + QString::number(streamStats._ringBufferDesiredJitterBufferFrames)
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+ " desired_calc:" + QString::number(avatarRingBuffer->getCalculatedDesiredJitterBufferFrames())
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+ " available_avg_10s:" + QString::number(streamStats._ringBufferFramesAvailableAverage)
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+ " available:" + QString::number(streamStats._ringBufferFramesAvailable)
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+ " starves:" + QString::number(streamStats._ringBufferStarveCount)
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+ " not_mixed:" + QString::number(streamStats._ringBufferConsecutiveNotMixedCount)
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+ " overflows:" + QString::number(streamStats._ringBufferOverflowCount)
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+ " silents_dropped:" + QString::number(streamStats._ringBufferSilentFramesDropped)
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+ " lost%:" + QString::number(streamStats._packetStreamStats.getLostRate() * 100.0f, 'f', 2)
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+ " lost%_30s:" + QString::number(streamStats._packetStreamWindowStats.getLostRate() * 100.0f, 'f', 2)
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+ " min_gap:" + formatUsecTime(streamStats._timeGapMin)
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+ " max_gap:" + formatUsecTime(streamStats._timeGapMax)
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+ " avg_gap:" + formatUsecTime(streamStats._timeGapAverage)
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+ " min_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMin)
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+ " max_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMax)
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+ " avg_gap_30s:" + formatUsecTime(streamStats._timeGapWindowAverage);
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} else {
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result = "mic unknown";
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}
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QHash<QUuid, PositionalAudioRingBuffer*>::ConstIterator i, end = _ringBuffers.constEnd();
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for (i = _ringBuffers.constBegin(); i != end; i++) {
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if (i.value()->getType() == PositionalAudioRingBuffer::Injector) {
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AudioStreamStats streamStats = i.value()->getAudioStreamStats();
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result += " UPSTREAM.inj.desired:" + QString::number(streamStats._ringBufferDesiredJitterBufferFrames)
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+ " desired_calc:" + QString::number(i.value()->getCalculatedDesiredJitterBufferFrames())
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+ " available_avg_10s:" + QString::number(streamStats._ringBufferFramesAvailableAverage)
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+ " available:" + QString::number(streamStats._ringBufferFramesAvailable)
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+ " starves:" + QString::number(streamStats._ringBufferStarveCount)
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+ " not_mixed:" + QString::number(streamStats._ringBufferConsecutiveNotMixedCount)
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+ " overflows:" + QString::number(streamStats._ringBufferOverflowCount)
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+ " silents_dropped:" + QString::number(streamStats._ringBufferSilentFramesDropped)
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+ " lost%:" + QString::number(streamStats._packetStreamStats.getLostRate() * 100.0f, 'f', 2)
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+ " lost%_30s:" + QString::number(streamStats._packetStreamWindowStats.getLostRate() * 100.0f, 'f', 2)
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+ " min_gap:" + formatUsecTime(streamStats._timeGapMin)
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+ " max_gap:" + formatUsecTime(streamStats._timeGapMax)
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+ " avg_gap:" + formatUsecTime(streamStats._timeGapAverage)
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+ " min_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMin)
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+ " max_gap_30s:" + formatUsecTime(streamStats._timeGapWindowMax)
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+ " avg_gap_30s:" + formatUsecTime(streamStats._timeGapWindowAverage);
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}
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}
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return result;
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}
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