guint64 (such as a #GstClockTime) to scale.
numerator of the scale factor.
denominator of the scale factor.
@val * @num / @denom. In the case of an overflow, this function returns G_MAXUINT64. If the result is not exactly representable as an integer, it is truncated. See also gst_util_uint64_scale_int_round(), gst_util_uint64_scale_int_ceil(), gst_util_uint64_scale(), gst_util_uint64_scale_round(), gst_util_uint64_scale_ceil().
Scale @val by the rational number @num / @denom, avoiding overflows and underflows and without loss of precision. @num must be non-negative and @denom must be positive.