Re: [Discuss-gnuradio] Maximum input items consumed on each input stream

From:

Laura Arjona

Subject:

Date:

Thu, 29 Aug 2019 14:27:09 -0700

Thank you very much Michael.

What are the I/O buffer sizes?

* My block is a general block

* In my forecast: ninput_items_required[0] = noutput_items;

* In the general_work: const gr_complex *in = (const gr_complex *) input_items[0];

float *out = (float *) output_items[0];

     * The private constructor
     */
    decoder_impl::frame_decoder_impl(int sample_rate,std::vector<int> output_sizes)
      : gr::block("decoder",
              gr::io_signature::make(1, 1, sizeof(gr_complex)),
              gr::io_signature::makev(2, 2, output_sizes)),
              s_rate(sample_rate)
    {

On Thu, Aug 29, 2019 at 5:41 AM Michael Dickens <address@hidden> wrote:

Hi Laura - In the "work" or "general_work" method, there are arguments that contain the information you're looking for. These arguments are set depending on what type of block you're creating (source, sink, sync, tagged_stream, whatever), are influenced by what the "forecast()" method returns, and are constrained by the I/O buffer sizes. Sorry to be a little vague, but the answer is that the value of the variable "consumed" in your description is context dependent. Hope this is useful! - MLD

On Wed, Aug 28, 2019 at 2:53 PM Laura Arjona <address@hidden> wrote:
Hello GNURadio community,

Does anyone know what is the maximum number of input items that an Out Of Tree block can consume on each input stream?

consume_each(consumed) --> what is the maximum value that the variable consumed can take?

Thank you very much.

--
Laura Arjona
Washington Research Foundation Innovation Postdoctoral Fellow in Neuroengineering

Paul G. Allen School of Computer Science & Engineering
185 E Stevens Way NE
University of Washington
Seattle, WA 98195-2350
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--
Michael Dickens, Mac OS X Programmer

Ettus Research Technical Support

Email: address@hidden

Web: http://www.ettus.com

Laura Arjona

Washington Research Foundation Innovation Postdoctoral Fellow in Neuroengineering

Paul G. Allen School of Computer Science & Engineering

185 E Stevens Way NE

University of Washington

Seattle, WA 98195-2350