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blocks_head.block.yml
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blocks_head.block.yml
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id: blocks_head
label: Head
flags: [ python, cpp ]
parameters:
- id: type
label: Type
dtype: enum
options: [complex, float, int, short, byte]
option_attributes:
size: [gr.sizeof_gr_complex, gr.sizeof_float, gr.sizeof_int, gr.sizeof_short,
gr.sizeof_char]
hide: part
- id: num_items
label: Num Items
dtype: int
default: '1024'
- id: vlen
label: Vector Length
dtype: int
default: '1'
hide: ${ 'part' if vlen == 1 else 'none' }
inputs:
- domain: stream
dtype: ${ type }
vlen: ${ vlen }
outputs:
- domain: stream
dtype: ${ type }
vlen: ${ vlen }
optional: true
asserts:
- ${ vlen > 0 }
templates:
imports: from gnuradio import blocks
make: blocks.head(${type.size}*${vlen}, ${num_items})
callbacks:
- set_length(${num_items})
cpp_templates:
includes: ['#include <gnuradio/blocks/head.h>']
declarations: 'blocks::head::sptr ${id};'
make: 'this->${id} = blocks::head::make(${type.size}*${vlen}, ${num_items});'
callbacks:
- set_length(${num_items})
file_format: 1