Hello everyone,
I am trying to create an out-of-tree tagged stream block with multiple (3)
input ports. Am I coding the private constructor incorrectly, or is there
something else?
Here's my process:
First, I got the block to work with just one input port. Then, I added
additional inputs by changing the number of min and max inputs, as follows,
> : gr::tagged_stream_block("geese_vcvc",
> gr::io_signature::make(3, 3, sizeof(gr_complex) * fft_len),
> gr::io_signature::make(1, 1, sizeof(gr_complex) * fft_len), tsb_key),
add two more inputs in work, as follows,
const gr_complex *a = (const gr_complex *) input_items[0];
> const gr_complex *d = (const gr_complex *) input_items[1];
> const gr_complex *x = (const gr_complex *) input_items[2];
>
> gr_complex *out = (gr_complex *) output_items[0];
and finally change the xml file to add two more sinks.
Before these changes (highlighted in yellow), the block is able to run
without runtime errors. However, after these changes, I get the following
output:
Showing: "/home/jenny//Tutorials/rx_ofdm.grc"
> Generating: "/home/jenny/Tutorials/rx_ofdm.py"
> Executing: "/home/jenny/Tutorials/rx_ofdm.py"
> Using Volk machine: sse4_2_64_orc
> gr::log :FATAL: geese_vcvc0 - Missing a required length tag on port 1 at
> item #0
> thread[thread-per-block[46]: <block geese_vcvc (1)>]: Missing length tag.
Thanks,
Jenny
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