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Diffstat (limited to 'Adaptation/Panda.h')
-rw-r--r-- | Adaptation/Panda.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Adaptation/Panda.h b/Adaptation/Panda.h new file mode 100644 index 00000000..000131a1 --- /dev/null +++ b/Adaptation/Panda.h @@ -0,0 +1,89 @@ +/* + * 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. + */ + +#ifndef LIBDASH_FRAMEWORK_ADAPTATION_PANDA_H_ +#define LIBDASH_FRAMEWORK_ADAPTATION_PANDA_H_ + +#include "AbstractAdaptationLogic.h" +#include "../MPD/AdaptationSetStream.h" +#include "../Input/IDASHReceiverObserver.h" + +namespace libdash +{ +namespace framework +{ +namespace adaptation +{ +class PandaAdaptation : public AbstractAdaptationLogic +{ +public: + PandaAdaptation(dash::mpd::IMPD *mpd, dash::mpd::IPeriod *period, dash::mpd::IAdaptationSet *adaptationSet, bool isVid, struct AdaptationParameters *params); + virtual ~PandaAdaptation(); + + virtual LogicType getType(); + virtual bool isUserDependent(); + virtual bool isRateBased(); + virtual bool isBufferBased(); + virtual void bitrateUpdate(uint64_t bps, uint32_t segNum); + virtual void dLTimeUpdate(double time); + virtual void bufferUpdate(uint32_t bufferFill, int maxC); + void setBitrate(uint64_t bufferFill); + uint64_t getBitrate(); + virtual void setMultimediaManager(viper::managers::IMultimediaManagerBase *_mmManager); + void notifyBitrateChange(); + void onEOS(bool value); + void checkedByDASHReceiver(); + + void quantizer(); +private: + uint64_t currentBitrate; + + std::vector<uint64_t> availableBitrates; + viper::managers::IMultimediaManagerBase *multimediaManager; + dash::mpd::IRepresentation *representation; + + uint64_t averageBw; // Classic EWMA + uint64_t instantBw; + uint64_t smoothBw; // Panda paper smoothed y[n] + uint64_t targetBw; // Panda paper x[n] bw estimation + + double param_Alpha; + double alpha_ewma; + double param_Epsilon; + double param_K; + double param_W; + double param_Beta; + double param_Bmin; + + double interTime; // Actual inter time + double targetInterTime; // Target inter time + double downloadTime; + + uint32_t bufferLevel; + uint32_t lastBufferLevel; + double bufferMaxSizeSeconds; // Usually set to 60s + double bufferLevelSeconds; // Current buffer level [s] + + double segmentDuration; + double deltaUp; + double deltaDown; + size_t current; +}; + +} /* namespace adaptation */ +} /* namespace framework */ +} /* namespace libdash */ + +#endif /* LIBDASH_FRAMEWORK_ADAPTATION_PANDA_H_ */ |