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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.
+ */
+
+#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_ */