chromium/third_party/one_euro_filter/src/one_euro_filter.h

#ifndef ONE_EURO_ONE_EURO_FILTER_H_
#define ONE_EURO_ONE_EURO_FILTER_H_

#include <memory>

#include "low_pass_filter.h"

namespace one_euro_filter {
namespace test {
class OneEuroFilterTest;
}

namespace {
TimeStamp;  // in seconds
static const TimeStamp UndefinedTime = …;
}  // namespace

class OneEuroFilter { … };

}  // namespace one_euro_filter

#endif  // ONE_EURO_ONE_EURO_FILTER_H_