63 lines
1.4 KiB
Python
Executable File
63 lines
1.4 KiB
Python
Executable File
#!/usr/bin/python
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import gc
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import sys
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# you might need this in your .bashrc
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# export GI_TYPELIB_PATH=$VIPSHOME/lib/girepository-1.0
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from gi.repository import Vips
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print 'long way around:'
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a = Vips.Image()
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a.props.filename = sys.argv[1]
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a.props.mode = 'r'
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if a.build() != 0:
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print Vips.error_buffer()
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sys.exit(-1)
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print 'a.get_width() =', a.get_width()
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print 'a.props.width =', a.props.width
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print 'direct call:'
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a = Vips.Image.new_from_file(sys.argv[1])
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print 'a.get_width() =', a.get_width()
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print 'a.props.width =', a.props.width
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print 'call operation:'
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op = Vips.Operation.new("add")
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for prop in op.props:
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print 'prop.name =', prop.name
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flags = op.get_flags(prop.name)
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if flags & Vips.ArgumentFlags.OUTPUT:
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print '\toutput'
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if flags & Vips.ArgumentFlags.INPUT:
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print '\tinput'
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if flags & Vips.ArgumentFlags.REQUIRED:
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print '\trequired'
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print '\tassigned', op.get_assigned(prop.name)
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op.props.left = a
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op.props.right = a
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op2 = Vips.cache_operation_build(op)
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if op2 == None:
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print Vips.error_buffer()
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sys.exit(-1)
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out = op2.props.out
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op2.unref_outputs()
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print 'out.get_format() =', out.get_format()
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print 'out.props.format =', out.props.format
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out.write_to_file("x.v")
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print 'starting shutdown ...'
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# sometimes have to do several GCs to get them all, not sure why
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#for i in range(10):
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# gc.collect ()
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#print 'shutdown!'
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