Re: Why noi in block Gnuradio is changed every time........

[Marcus Müller]

Please always reply on the mailing list!

On 22.11.21 12:19, sp h wrote:
> Thanks, I used method set_output_multiple to 4096.  now all noi is 4096...

No, only these that you observed. You might also be seeing 9192 or higher multiples of 
4096. Again, it's important, no matter what, that your work() only consumes the amount of 
samples you actually process.

> but I had a question is it possible that some samples are lost with this 
> method...

No, GNU Radio never loses samples. Most probably, you're telling GNU Radio you've consumed 
samples that you didn't actually process.

Best regards,
Marcus

> On Mon, Nov 22, 2021 at 2:10 PM Marcus Müller <mmueller@gnuradio.org 
> <mailto:mmueller@gnuradio.org>> wrote:
>
>     Hi Stack Programmer,
>
>     you can't.
>
>     Your work function needs to be able to deal with different sizes (it 
> doesn't have to
>     consume all input, that's *your* choice). You can tell GNU Radio your block 
> wants a
>     multiple of a specific size, set_output_multiple.
>
>     Best regards,
>     Marcus
>
>     On 22.11.21 11:16, sp h wrote:
>      > I developed a block Gnuradio that works with samples block type is sync 
> block. i
>     used a
>      > for that i can print samples
>      >
>      > for(inti=0;i<noi;i++)
>      >
>      > Why every time noi in gnuradio is changed...i used USRP and UHD source...
>      >
>      > but in my custom block noi size is not fixed..how can i fixed it.......
>      >
>      >