class PidControl

Defined at line 21 of file ../../src/media/audio/lib/clock/pid_control.h

PidControl implements a PID (proportional-integral-derivative) feedback control based on a set of

coefficients and a sequence of TuneForError calls that inform PidControl of measured errors at

certain points in time.

Public Methods

void Start (zx::time start_time)

Set the start time and reset the PID controller

Defined at line 28 of file ../../src/media/audio/lib/clock/pid_control.cc

void PidControl (const Coefficients & vals)

Defined at line 31 of file ../../src/media/audio/lib/clock/pid_control.h

void PidControl ()

Defined at line 35 of file ../../src/media/audio/lib/clock/pid_control.h

void TuneForError (zx::time time, double error)

Calling TuneForError before Start effectively starts (but does not tune) the PidControl.

Only tune_time_ and current_error_ are set, and no feedback response is generated.

Defined at line 36 of file ../../src/media/audio/lib/clock/pid_control.cc

double Read ()

Calling Read on an unstarted or untuned PidControl always returns 0 (no feedback).

Defined at line 33 of file ../../src/media/audio/lib/clock/pid_control.cc

std::ostream & PidControl (std::ostream & out, const PidControl & pid)

class PidControlTest_DefaultAndReset_Test