On Sun, Dec 13, 2009 at 12:32:17PM +0100, elettra.p...@libero.it wrote: > Hi all, > > I'm having a problem trying to use gr_vector_float type. > I don't have > any problem to work with streams, but when I try to create a block that takes > a > vector of float numbers on its input and produces a vector of float numbers > on > its output (N:N) I always receive this error: > > ValueError: itemsize mismatch: > stream_to_vector(2):0 using 4096, xcor_ff(4):0 using 4 > > I understood this error > is caused by different vectors' size, but I don't understand what I did wrong > in my code. > > This is c++ source of my block (I'm trying to create a block that > compute the autocorrelation of its input vector):
Your i/o signatures are incorrect. They specify that the size of an item is sizeof(float), but you probably want something like sizeof(float) * fft_size Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
