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From: | Ali |
Subject: | Re: [Discuss-gnuradio] GNURadio OOT vector input/output with different size |
Date: | Thu, 20 Jul 2017 10:13:29 +0300 |
Hi Ali,
no, that's why I explained what you need to do (use makev).I think this should also work, shouldn't it?
Does this part need to be changed since I am working with the vectors?No, not really. The vectors are still only consecutive numbers in memory.
Best regards,
Marcus
On 18.07.2017 07:51, Ali wrote:
Hi,
1- Actually I am using the followings
make(8,8,1000*sizeof(float))make3(4,4,1000*sizeof(float),1000*sizeof(float),4*sizeof( float))
I think this should also work, shouldn't it?
2- Under the general work function I am using the followings:
const float *in1 = (const float *) input_items[0]...float *out1 = (float *) output_items[0]
Does this part need to be changed since I am working with the vectors?
Thanks,Ali
2017-07-17 16:42 GMT+03:00 Marcus Müller <address@hidden>:
Hi Ali,
So, you want one block with:
- 8 inputs, itemsize0…7 = 1000*4B = 4000B
- 4 outputs, itemsize0=itemsize1=4000B, itemsize2=itemsize3=16B
Correct?
You need to generate two std::vector<int> with content
{4000,4000,4000,4000,4000,4000
,4000,4000} and
{4000,4000,16,16}
respectively, and use gr::io_signature::makev(int min_streams, int max_streams, vector) to generate the io_signatures[1] that you use in your block's constructor. The question whether your block should be a general, or a sync block, is independent from the item sizes of the in and outputs, but depends on whether there's always a fixed ratio of produced output items to consumed input items, as explained in [2].
Best regards,
Marcus
[1] https://gnuradio.org/doc/doxyg
en/classgr_1_1io__signature. html#a99e0f9e8de8e7ce16ed92d9f 2655e66c
[2] https://wiki.gnuradio.org/index.php/Guided_Tutorial_GNU_Radi o_in_C%2B%2B#4.3.2_Specific_ block_categories
On 07/17/2017 03:31 PM, Ali wrote:
Hi to all,
I want to design my own OOT module with the following I/O:
8 inputs (length of 1000 and each element is type of float)2 outputs (length of 1000 and each element is type of float)2 outputs (length of 4 and each element is type of float)
I used general type block but I could not get the desired outputs. Do you suggest other type of blocks? Is there any example similar to this work that I can study on? Can you suggest a module name or a link?
Best,Ali
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