class <Application/MediaApp/QA> QA : public MediaApp

Inheritance:

Public Methods

virtual AppData* get_data(int& size, AppData* req_data = 0)

QA(const char *page)

double UpdateInterval()

void UpdateState()

virtual ~QA()

Protected Fields

double avgrate_

Average transmission rate and its moving average weight Measured whenever a segment is sent out (XXX why??)

double buffer_[MAX_LAYER]

Internal state info for QA

double bw_[MAX_LAYER]

int debug_

OTcl-bound variables Turn on/off debug output

double drained_[MAX_LAYER]

int layer_

Data members

int LAYERBW_

int MAXACTIVELAYERS_

int MAXBKOFF_

MediaSegmentList outlist_[MAX_LAYER]

Linked list keeping track of holes between poffset_ and current transmission pointer

int playing_[MAX_LAYER]

double playTime_

playout time of the receiver

int poffset_

Variables related to playout buffer management The playout offset: estimation of client playout time

int pref_[MAX_LAYER]

The end offset of the prefetch requests. Used to avoid redundant prefetching requests

double pref_srtt_

Prefetching SRTT

double rate_weight_

int sending_[MAX_LAYER]

int SMOOTHFACTOR_

double SRTTWEIGHT_

double startTime_

Absoloute time when playout started

QATimer* updTimer_

Protected Methods

int AllZero(double *arr, int len)

inline double BufNeed(double side, double slope)

Calculate area of a triangle for a given side and slope

double bufOptScen1(int layer, int layers, double currrate, double slope, int backoffs)

double bufOptScen2(int layer, int layers, double currrate, double slope, int backoffs)

void check_availability(int layer, const MediaSegment& s)

Helper functions

void check_layers(int layer, MediaSegment& tmp)

virtual int command(int argc, const char*const* argv)

void debug(const char* fmt, ...)

Debugging output

void drain_buf(double* DrainArr, double bufToDrain, double* FinalDrainArray, double* bufAvail, int layers, double rate, double srtt)

void DrainBuffers()

Ack feedback information

void DrainPacket(double bufToDrain, double* FinalDrainArray, int layers, double rate, double srtt, double* FinalBuffer)

void DumpInfo(double t, double last_t, double rate, double avgrate, double srtt)

inline double MWM(double srtt)

Misc helpers

AppData* output(int& size, int layer)

void panic(const char* fmt, ...)

RapAgent* rap()

inline double rate()

virtual void stop()

double TotalBuf(int n, double *buffer)

Inherited from MediaApp:

Public Methods

void log(const char* fmt, ...)

virtual void process_data(int size, AppData* data)

void set_page(const char* pg)

Protected Fields

MediaSegment data_[MAX_LAYER]

Tcl_Channel log_

int num_layer_

char page_[HTTP_MAXURLLEN]

int seg_size_

Protected Methods

virtual void start()

Private Fields

int last_layer_

Inherited from Application:

Public Methods

virtual void recv(int nbytes)

virtual void resume()

virtual void send(int nbytes)

Protected Fields

Agent* agent_

int enableRecv_

int enableResume_

Inherited from Process:

Public Methods

virtual void send_data(int size, AppData* data = 0)

inline Process*& target()

Protected Fields

Process* target_

QA(const char *page)

virtual ~QA()

virtual AppData* get_data(int& size, AppData* req_data = 0)

void UpdateState()

double UpdateInterval()

virtual int command(int argc, const char*const* argv)

virtual void stop()

void check_availability(int layer, const MediaSegment& s)

Helper functions

RapAgent* rap()

inline double MWM(double srtt)

Misc helpers

inline double rate()

inline double BufNeed(double side, double slope)

Calculate area of a triangle for a given side and slope

int AllZero(double *arr, int len)

double TotalBuf(int n, double *buffer)

AppData* output(int& size, int layer)

void DumpInfo(double t, double last_t, double rate, double avgrate, double srtt)

double bufOptScen1(int layer, int layers, double currrate, double slope, int backoffs)

double bufOptScen2(int layer, int layers, double currrate, double slope, int backoffs)

void drain_buf(double* DrainArr, double bufToDrain, double* FinalDrainArray, double* bufAvail, int layers, double rate, double srtt)

void DrainPacket(double bufToDrain, double* FinalDrainArray, int layers, double rate, double srtt, double* FinalBuffer)

void DrainBuffers()

Ack feedback information

void debug(const char* fmt, ...)

Debugging output

void panic(const char* fmt, ...)

void check_layers(int layer, MediaSegment& tmp)

int layer_

Data members

double playTime_

playout time of the receiver

double startTime_

Absoloute time when playout started

double buffer_[MAX_LAYER]

Internal state info for QA

double drained_[MAX_LAYER]

double bw_[MAX_LAYER]

int playing_[MAX_LAYER]

int sending_[MAX_LAYER]

QATimer* updTimer_

double avgrate_

Average transmission rate and its moving average weight Measured whenever a segment is sent out (XXX why??)

double rate_weight_

int poffset_

Variables related to playout buffer management The playout offset: estimation of client playout time

MediaSegmentList outlist_[MAX_LAYER]

Linked list keeping track of holes between poffset_ and current transmission pointer

int pref_[MAX_LAYER]

The end offset of the prefetch requests. Used to avoid redundant prefetching requests

int debug_

OTcl-bound variables Turn on/off debug output

double pref_srtt_

Prefetching SRTT

int LAYERBW_

int MAXACTIVELAYERS_

double SRTTWEIGHT_

int SMOOTHFACTOR_

int MAXBKOFF_

alphabetic index hierarchy of classes

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