Re: vector index selector

Hm, in that case, this would be a really easy thing to just write in an embedded python block!

On 15.11.21 12:48, Ali G. Dezfuli wrote:
> Thanks, Marcus, but I actually want to have something like a general demultiplexer to
> separate the preamble from the payload.
> I couldn't find a SIMPLE demuxer ("Header/Payload Demux" is very complicated.)
> What you kindly said is something like a general downsampler/decimator which of course has
> its own use.
> For example, with a correlator, I put a tag at the frame start, and with "Tagged Stream
> Aligned" and "Stream to Vector" I will have a ready-to-be-demuxed frame to get to the payload.
>
> On Mon, Nov 15, 2021 at 2:14 PM Marcus Müller <mueller@kit.edu <mailto:mueller@kit.edu>>
> wrote:
>
> Hi!
> Not in itself, but you can do
>
> ---vector-->
>   [Vector to Stream, num items = n]
>    --->
>     [Keep M in N, M=1, N=n, initial offset=index]
>      ---->
>
> Best regards,
> Marcus
>
> PS: A PR to improve "keep M in N" to directly deal with vectors, or to add a block
> "Vector
> Extract" that does what you describe (take vectors in, and have a parameter with indices
> to extract) to master, would certainly be welcome.
>
> On 14.11.21 07:55, Ali G. Dezfuli wrote:
> > Hi all,
> > is there a block in GRC to get a vector and output a vector with selected indexes
> (as a
> > parameter)?
> > thanks,
> > AGD
>