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[[Category:Block Docs]]
 
[[Category:Block Docs]]
This block uses a decoder variable object (derived from gr::fec::generic_decoder) to decode data within a flowgraph. This block interacts with the general FECAPI architecture to handle all passing all input and output data in a flowgraph. The decoder variable takes care of understanding the requirements, data types and sizes, and boundary conditions of the specific FEC decoding algorithm.
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[[Category:Stub Docs]]
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This is the template for the [[:Category:Block_Docs|"Page-per-block Docs"]]. This first section should describe what the block does and how to use it, using however many paragraphs necessary. Note that the title of the wiki page should match the block's name in GRC, i.e. the one defined in the block's .grc file.  Look at the [[FFT]] Block for a good example.
  
Generally, this block is used within the fec.extended_decoder Python block to handle some input/output formatting issues. In the FECAPI, the decoder variable sets properties like the input and output types and sizes and whether the output is packed or unpacked bytes. The fec.extended_decoder uses this information to set up an gr::hier_block2 structure to make sure the I/O to the variable is handled consistently, such as to make sure all inputs are floats with one soft symbol per item and the outputs are unpacked bytes with the bit in the LSB.
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As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
  
See gr::fec::generic_decoder for detail on what information an FECAPI variable object can set if using this block directly and not as part of the fec.extended_decoder.
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== Parameters ==
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(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
  
== Parameters ==
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; Param 1 (''R'')
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: Description of parameter, provide any tips or recommended values.  Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
  
; Decoder Object
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; Param 2
: An FECAPI decoder object (See gr::fec::generic_decoder).
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: blah blah blah
  
 
== Example Flowgraph ==
 
== Example Flowgraph ==
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; C++ files
 
; C++ files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/lib/decoder_impl.cc]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Header files
 
; Header files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/lib/decoder_impl.h]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Public header files
 
; Public header files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/include/gnuradio/fec/decoder.h]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Block definition
 
; Block definition
: [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/grc/fec_decoder.block.yml]
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: [https://github.com/gnuradio/gnuradio TODO]

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