Hello Dan,
I was doing some edits for upcoming 1.0 Flowblade release.
I discovered that when setting parameter values for frei0r plugins MLT
0.8.8 converts string expressions of float values to 0 or 1 instead of the
intended float value.
So anything < "1.0" is converted to 0 and "1.0" is converted to 1.0, as the
previous behaviour was that "0.5678" was converted to 0.5678 and not to 0.
When float paramater values are converted from strings to MLT plugins, the
behaviour remains the correct one, string expressions of floats are
converted to float values so "0.5678" is converted to 0.5678.
This breaks Flowblade on all systems with MLT 0.8.8.
I'm writing out parameter values with the same function for string
parameter values and float parameter values, and have been doing so since
2009-2010 and it has always worked, I've used the method below:
def write_mlt_property_str_value(self, str_value):
# mlt property value
filter_object = self._get_filter_object()
filter_object.mlt_filter.set(str(self.name), str(str_value))
I can fix this for frei0r parameters with float values by changing the
method to:
def write_mlt_property_str_value(self, str_value):
# mlt property value
filter_object = self._get_filter_object()
filter_object.mlt_filter.set(str(self.name), float(str_value)) #
<----- str( ) changed to float( ) here
but this breaks all plugins using the same method for string values.
I need to know:
1) Is this a bug?
2) If not, what is the purpose of the change?
3) If it is a bug, when will it be fixed, and when will the fixed MLT be
available on the popular distributions?
Further more:
1) Do you have test suits that are supposed to prevent this kind of
regressions from happening?
Please advise.
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