cvSetData(m->a, (void*)((char*)buffer + m->offset), m->a->step);

      assert(cvGetErrStatus() == 0);

      *dst = m->a;

      return 1;

    } else {

      return failmsg("CvMat argument '%s' has no data", name);

    if (ao != NULL &&

        PyCObject_Check(ao) &&

        ((PyArrayInterface*)PyCObject_AsVoidPtr(ao))->two == 2) {

      return 1;

    }

  }

}

static int convert_to_cvarrseq(PyObject *o, cvarrseq *dst, const char *name = "no_name")

  if (PyType_IsSubtype(o->ob_type, &cvseq_Type)) {

    return convert_to_CvSeq(o, &(dst->seq), name);

  } else if (is_convertible_to_mat(o)) {

    // a sequence and that they are all the same size

    for (Py_ssize_t i = 0; i < PySequence_Fast_GET_SIZE(fi); i++) {

      PyObject *e = PySequence_Fast_GET_ITEM(fi, i);

      if (!PySequence_Check(e))

        return failmsg("Sequence '%s' must contain sequences", name);

      if (i == 0)

static PyObject *fromarray(PyObject *o, int allowND)

{

  PyObject *ao = PyObject_GetAttrString(o, "__array_struct__");

  if ((ao == NULL) || !PyCObject_Check(ao)) {

    PyErr_SetString(PyExc_TypeError, "object does not have array interface");

    PyErr_SetString(PyExc_TypeError, "object does not have array interface");

    return NULL;

  }

  int type = -1;

  switch (pai->typekind) {

      return (PyObject*)failmsg("cv.fromarray array can be 2D or 3D only, see allowND argument");

    }

    m->a->data.ptr = (uchar*)pai->data;

    return pythonize_foreign_CvMat(m);

  } else {

    int dims[CV_MAX_DIM];