Function SubtractFromTimeRanges

src/base/TimeRange.cpp:52–77

}

void SubtractFromTimeRanges(std::vector<TimeRange>* timeRanges, Frame startTime, Frame endTime) {
  if (endTime < startTime) {
    SplitTimeRangesAt(timeRanges, startTime);
    return;
  }
  auto size = static_cast<int>(timeRanges->size());
  for (int i = size - 1; i >= 0; i--) {
    auto timeRange = (*timeRanges)[i];
    if (timeRange.end < startTime || timeRange.start > endTime) {
      // target outside timeRange
      continue;
    }
    if (timeRange.start < startTime && timeRange.end > endTime) {
      // target inside timeRange
      TargetInsideTimeRange(timeRanges, i, startTime, endTime);
      break;
    }
    if (timeRange.start >= startTime && timeRange.end <= endTime) {
      // target contain timeRange
      timeRanges->erase(timeRanges->begin() + i);
    } else {
      // target intersect timeRange
      TargetIntersectTimeRange(timeRanges, i, startTime, endTime);
    }
  }
}

void SplitTimeRangesAt(std::vector<TimeRange>* timeRanges, Frame startTime) {
  auto size = static_cast<int>(timeRanges->size());