Re: [Discuss-gnuradio] attribute/control stream question

[Tom Rondeau]

Matt Ettus wrote:
> Eric A. Cottrell wrote:
>   
> > Hello,
> >
> > The processing of pulses into data requires me to keep track of valid
> > pulses (following samples are above threshold) and leading edges (sample
> > is 6 dB or more than previous sample and following sample is 6 dB or
> > less than current sample).  I also want to indicate preamble start and
> > pass timestamps along.  I have thought of three methods to do this but
> > do not know which would be the best one.
> >
> >   
> >     
>
> You can do this, or you may be able to break things up into chunks of
> samples and process them as vectors.  See the ofdm_sync code for an
> example of how we do that.

Also, off the top of my head, you might find the peak_detector and 
sample_and_hold blocks useful for what you're doing. If these won't do 
what you need, that at least the S/H block illustrates the use of 
different streams where input stream 0 is some data type (float, 
gr_complex, bytes, ints) and input stream 1 is a byte stream 
(sizeof_char) as the control line.

Tom