cvCalcOpticalFlowPyrLK in OpenCV 2.3 (Bug #1629)

In file modules/video/src/lkpyramid.cpp, line 1072, inside function cvCalcOpticalFlowPyrLK(), its C++ version is called with a wrong input parameter.

The declaration of cv::calcOpticalFLowPyrLK() is

1void cv::calcOpticalFlowPyrLK( InputArray _prevImg, InputArray _nextImg,
2                           InputArray _prevPts, InputOutputArray _nextPts,
3                           OutputArray _status, OutputArray _err,
4                           Size winSize, int maxLevel,
5                           TermCriteria criteria,
6                           double derivLambda,
7                           int flags, double minEigThreshold )

while inside cvCalcOpticalFlowPyrLK(), it is called:

1cv::calcOpticalFlowPyrLK( A, B, ptA, ptB, status ? cv::_OutputArray(st) : cv::_OutputArray(),
2                              error ? cv::_OutputArray(err) : cv::_OutputArray(),
3                              winSize, level, criteria, flags);

The 10th parameter is replaced by "int flags", which is actually "double derivLamba".