Hello Simone, > Is there a convenctional way to do this? Yes, there is! Since in a sync block, the numbers of samples you consume on you rinput and you produce on your output are identical, you can use set_output_multiple(8192) [1].
If what you're doing feels more like a operation on vectors of samples instead of an operation on a stream of samples, you could also use a input signature with an input and output item size of 8192 times the original item size, and use stream_to_vector[2]before and vector_to_stream to convert from streams to vectors. A typical example (and generally a very nice block) is the fft_vcc[3] block, which encapsulates the FFT, which is a vector operation, mathematically. Greetings, Marcus [1] http://gnuradio.org/doc/doxygen/classgr_1_1block.html#a63d67fd758b70c6f2d7b7d4edcec53b3 [2] http://gnuradio.org/doc/doxygen/classgr_1_1blocks_1_1stream__to__vector.html [3] http://gnuradio.org/doc/doxygen/classgr_1_1fft_1_1fft__vcc.html On 01/21/2015 10:51 AM, Simone Ciccia S210664 wrote: > Goodmorning, > I have general questions about processing a fixed number of samples. > > In front of the necessity to process N samples (N=8192 items) in a > sinchronous block, I developed a mechanism like this: > _____________________________________________________________ > if(noutput_items>N) > { > processing of N elements > consume(N); return(N); //in this way I process the required N elements > } > else > {consume(0); return(0);} // here I'm waiting until the input buffer > reach > the required number of elements > _____________________________________________________________ > > Probably is not the convenctional way to do this, but for now it works > well. > My questions are: > - Is there a convenctional way to do this? > - it seems that N cannot be larger than 8192, how can I enlarge the > input > buffer? > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
