Hi,
I have a simple question. I have a block that has 2 input streams and the
inputs are consumed at different rates. For each 1 input consumed on the
first input stream N inputs are consumed in the second stream.
The forecast function and set_multiple call of this block are as shown
below,
my_new_block::forecast(int noutput_items,gr_vector_int
&ninput_items_required){
assert(noutput_items % N==0); # the
int items_on_first_input_stream = noutput_items;
int items_on_second_input_stream = noutput_items/(8*N);
ninput_items_required[0]=items_on_first_input_stream;
ninput_items_required[1]=items_on_data_input_stream;
}
{
set_output_multiple(8*N); # the output items are a multiple of
8*N.
}
For each (8*N) inputs consumed on second stream 1 input is consumed on first
stream.
If the first stream has uninterrupted supply but the second one doesn't then
how should I check if input is available on the second stream. Will the
input_vector contain NULL values when nothing is in it? If it is true should
i just do
if(second_stream[next_item]==null){
.......
}
Please clarify.
Thanks
Ali
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