I know that Cython does an implicit conversion from char* to Python string,
but do I need to somehow specify the length of the string?
I ask because I have a data buffer of known size (7854000 bytes uint8) but
when i pass the pointer to that buffer into python, my string length is only
4617.
this
On Tue, May 19, 2009 at 9:05 PM, Chris Colbert sccolb...@gmail.com wrote:
I know that Cython does an implicit conversion from char* to Python string,
but do I need to somehow specify the length of the string?
But then Cython assumes you string is a NULL-terminated one. In other
words, you
Lisandro,
Once again, thank you!
I think I finally have a tricky question for you now however:
I have the OpenCV IplImage class wrapped as so:
cdef class IplImage:
cdef c_cxcore.IplImage* thisptr
#Convienience Functions
def show(self):
#
Any chance that cvQueryFrame() returns an image that you should not
free?? When you do twice:
img = cam.queryFrame()
img = cam.queryFrame()
the first img is likely garbage-collected. Perhaps your
Image.__dealloc__ is not doing the right thing in this case?
Could you try to do:
cam =
Any chance that cvQueryFrame() returns an image that you should not
free??
that's exactly it (i feel really dumb for having missed it)
the first img is likely garbage-collected. Perhaps your
Image.__dealloc__ is not doing the right thing in this case?
would you suggest setting a private
Such a flag would work... For example, IIUC ctypes does this (I'm
remembering a 'needs_free' attribute or something like that on some
ctypes instances...)
Just in case, I'll ask... Any chance the library you are using has
some sort of reference count mechanism? If it do, you sould rely on
that
