Re: [Discuss-gnuradio] gr-buffer usage

[Trond Danielsen]

2007/7/24, Eric Blossom <address@hidden>:
> On Tue, Jul 24, 2007 at 12:36:10PM +0200, Vincenzo Pellegrini wrote:
> > thanks Trond,
> > I went your way, and actually my stream gets loaded right into the ram
> > as I wanted..:)
> > my problem is now that.. doing:
> >
> >         data = fromfile("/root/Desktop/ofdm_encode_1H.dump",
> > dtype="complex64")
> >         vector_source = gr.vector_source_c(data,True)
> >
> >         self.connect(vector_source,gain)
> >         self.connect (gain, self.u)
> >
> > I get an error relating to the number of arguments I pass to
> > gr.vector_source_c
> >
> >     vector_source = gr.vector_source_c(data,True)
> >   File
> > "/usr/local/lib/python2.4/site-packages/gnuradio/gr/gnuradio_swig_py_gengen.py",
> >  line 6695, in vector_source_c
> >     return _gnuradio_swig_py_gengen.vector_source_c(*args)
> > NotImplementedError: Wrong number of arguments for overloaded function
> > 'vector_source_c'.
> >   Possible C/C++ prototypes are:
> >
> > gr_make_vector_source_c(std::vector<gr_complex,std::allocator<gr_complex
> > > > const &,bool)
> >
> > gr_make_vector_source_c(std::vector<gr_complex,std::allocator<gr_complex
> > > > const &)
> >
> >
> > what am I doing wrong?
> >
> > sorry for bothering..
> > and thanks for help
> >
> > vincenzo
>
> What is the type of the "data" result?

The type of data is a numpy array. It can be converted to an ordinary
python list:

a_list = data.tolist()

However, whenever a list is expected, a numpy array can always be used.

> vector_source_c expects a Python list or tuple of complex.


-- 
Trond Danielsen