Re: [Discuss-gnuradio] gr-buffer usage

[Vincenzo Pellegrini]

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


> 
> No, if you use vector_source, you should not use the gr.file_source to
> load the data. How you read the data from the file depends on the
> format is is stored in, but if it data recorded with GNU Radio, I
> personally use numpy/scipy. Python example:
> 
> from numpy import *
> # Use complex64 for gr.gr_complex and float32 for gr.float
> data = fromfile("filename.dat", dtype="complex64")
> src = gr.vector_source(data, repeat=True)
> 
> 
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