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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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 "BufferBasedAdaptation.h"
#include<stdio.h>
using namespace dash::mpd;
using namespace libdash::framework::adaptation;
using namespace libdash::framework::input;
using namespace libdash::framework::mpd;
BufferBasedAdaptation::BufferBasedAdaptation (viper::managers::StreamType type, MPDWrapper *mpdWrapper, struct AdaptationParameters *params) :
AbstractAdaptationLogic (type, mpdWrapper)
{
this->reservoirThreshold = params->BufferBased_reservoirThreshold;
this->maxThreshold = params->BufferBased_maxThreshold;
// this->representation = this->adaptationSet->GetRepresentation().at(0);
this->multimediaManager = NULL;
this->lastBufferFill = 0;
this->bufferEOS = false;
this->shouldAbort = false;
Debug("BufferBasedParams:\t%f\t%f\n", (double)reservoirThreshold/100, (double)maxThreshold/100);
Debug("Buffer Adaptation: STARTED\n");
}
BufferBasedAdaptation::~BufferBasedAdaptation ()
{
}
LogicType BufferBasedAdaptation::getType()
{
return adaptation::BufferBased;
}
bool BufferBasedAdaptation::isUserDependent()
{
return false;
}
bool BufferBasedAdaptation::isRateBased()
{
return false;
}
bool BufferBasedAdaptation::isBufferBased()
{
return true;
}
void BufferBasedAdaptation::setMultimediaManager (viper::managers::IMultimediaManagerBase *_mmManager)
{
this->multimediaManager = _mmManager;
}
void BufferBasedAdaptation::notifyBitrateChange()
{
this->mpdWrapper->setRepresentation(this->type, this->representation);
if(this->multimediaManager)
if(this->multimediaManager->isStarted() && !this->multimediaManager->isStopping())
if(this->type == viper::managers::StreamType::VIDEO)
this->multimediaManager->setVideoQuality();
else
this->multimediaManager->setAudioQuality();
// if(this->shouldAbort)
// {
// this->multimediaManager->shouldAbort((this->type == viper::managers::StreamType::VIDEO));
// }
// this->shouldAbort = false;
}
uint64_t BufferBasedAdaptation::getBitrate()
{
return this->currentBitrate;
}
void BufferBasedAdaptation::setBitrate(uint32_t bufferFill)
{
std::vector<IRepresentation *> representations = this->mpdWrapper->getRepresentations(this->type);
this->representation = representations.at(0);
size_t i = 0;
if(representations.size() == 1)
{
i = 0;
}
else
{
while(bufferFill > this->reservoirThreshold + i * (this->maxThreshold - this->reservoirThreshold)/(representations.size()-1))
{
i++;
}
}
if((size_t)i >= (size_t)(representations.size()))
i = representations.size() - 1;
this->representation = representations.at(i);
if( 0 && !this->bufferEOS && this->lastBufferFill > this->reservoirThreshold && bufferFill <= this->reservoirThreshold)
{
this->shouldAbort = true;
}
Debug("ADAPTATION_LOGIC:\tFor %s:\tlast_buffer: %f\tbuffer_level: %f, choice: %lu, should_trigger_abort: %s\n", (this->type == viper::managers::StreamType::VIDEO) ? "video" : "audio",(double)lastBufferFill/100 , (double)bufferFill/100, i, this->shouldAbort ? "YES" : "NO");
this->lastBufferFill = bufferFill;
}
void BufferBasedAdaptation::bitrateUpdate(uint64_t bps, uint32_t segNum)
{
}
void BufferBasedAdaptation::dLTimeUpdate(double time)
{
}
void BufferBasedAdaptation::onEOS(bool value)
{
this->bufferEOS = value;
}
void BufferBasedAdaptation::checkedByDASHReceiver()
{
}
void BufferBasedAdaptation::bufferUpdate(uint32_t bufferFill, int maxC)
{
this->mpdWrapper->acquireLock();
this->setBitrate(bufferFill);
this->notifyBitrateChange();
this->mpdWrapper->releaseLock();
}
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