leansdr::s2_fecenc Struct Reference

#include <dvbs2.h>

Inheritance diagram for leansdr::s2_fecenc:

Collaboration diagram for leansdr::s2_fecenc:

Public Types
typedef ldpc_engine< bool, hard_sb, 8, uint16_t >	s2_ldpc_engine

Public Member Functions
	s2_fecenc (scheduler *sch, pipebuf< bbframe > &_in, pipebuf< fecframe< hard_sb >> &_out)
void	run ()
Public Member Functions inherited from leansdr::runnable
	runnable (scheduler *_sch, const char *name)
Public Member Functions inherited from leansdr::runnable_common
	runnable_common (const char *_name)
virtual	~runnable_common ()
virtual void	shutdown ()

Private Member Functions
void	run_frame (const bbframe *pin, fecframe< hard_sb > *pout)

Private Attributes
pipereader< bbframe >	in
pipewriter< fecframe< hard_sb > >	out
s2_bbscrambling	bbscrambling
s2_bch_engines	s2bch
s2_ldpc_engines< bool, hard_sb >	s2ldpc

Additional Inherited Members
Public Attributes inherited from leansdr::runnable_common
const char *	name
Protected Attributes inherited from leansdr::runnable
scheduler *	sch

Detailed Description

Definition at line 2034 of file dvbs2.h.

Member Typedef Documentation

s2_ldpc_engine

typedef ldpc_engine<bool, hard_sb, 8, uint16_t> leansdr::s2_fecenc::s2_ldpc_engine

Definition at line 2036 of file dvbs2.h.

Constructor & Destructor Documentation

s2_fecenc()

leansdr::s2_fecenc::s2_fecenc ( scheduler *  sch, pipebuf< bbframe > &  _in, pipebuf< fecframe< hard_sb >> &  _out  )

inline

Definition at line 2037 of file dvbs2.h.

References leansdr::scheduler::debug.

        : runnable(sch, "S2 fecenc"),
          in(_in), out(_out)
    {
        if (sch->debug)
            s2ldpc.print_node_stats();
    }

Member Function Documentation

run()

void leansdr::s2_fecenc::run ( )

inlinevirtual

Reimplemented from leansdr::runnable_common.

Definition at line 2045 of file dvbs2.h.

References leansdr::pipereader< T >::rd(), leansdr::pipereader< T >::read(), leansdr::pipereader< T >::readable(), leansdr::pipewriter< T >::wr(), leansdr::pipewriter< T >::writable(), and leansdr::pipewriter< T >::written().

    {
        while (in.readable() >= 1 && out.writable() >= 1)
        {
            bbframe *pin = in.rd();
            fecframe<hard_sb> *pout = out.wr();
            run_frame(in.rd(), out.wr());
            in.read(1);
            out.written(1);
        }
    }

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run_frame()

void leansdr::s2_fecenc::run_frame ( const bbframe *  pin, fecframe< hard_sb > *  pout  )

inlineprivate

Definition at line 2058 of file dvbs2.h.

References leansdr::fecframe< SOFTBYTE >::bytes, leansdr::bbframe::bytes, leansdr::check_modcod(), leansdr::bch_interface::encode(), leansdr::ldpc_engine< SOFTBIT, SOFTWORD, SWSIZE, Taddr >::encode(), leansdr::s2_pls::framebits(), leansdr::s2_pls::modcod, leansdr::fecframe< SOFTBYTE >::pls, leansdr::bbframe::pls, leansdr::modcod_info::rate, and leansdr::s2_pls::sf.

    {
        const modcod_info *mcinfo = check_modcod(pin->pls.modcod);
        const fec_info *fi = &fec_infos[pin->pls.sf][mcinfo->rate];
        pout->pls = pin->pls;
        hard_sb *pbytes = pout->bytes;
        bbscrambling.transform(pin->bytes, fi->Kbch / 8, pbytes);
        { // BCH
            size_t msgbytes = fi->Kbch / 8;
            size_t cwbytes = fi->kldpc / 8;
            bch_interface *bch = s2bch.bchs[pin->pls.sf][mcinfo->rate];
            bch->encode(pbytes, msgbytes, pbytes + msgbytes);
        }
        { // LDPC
            size_t msgbits = fi->kldpc;
            size_t cwbits = pin->pls.framebits();
            s2_ldpc_engine *ldpc = s2ldpc.ldpcs[pin->pls.sf][mcinfo->rate];
            ldpc->encode(fi->ldpc, pbytes, msgbits, cwbits, pbytes + msgbits / 8);
        }
    }

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Member Data Documentation

bbscrambling

s2_bbscrambling leansdr::s2_fecenc::bbscrambling

private

Definition at line 2080 of file dvbs2.h.

in

pipereader<bbframe> leansdr::s2_fecenc::in

private

Definition at line 2078 of file dvbs2.h.

out

pipewriter<fecframe<hard_sb> > leansdr::s2_fecenc::out

private

Definition at line 2079 of file dvbs2.h.

s2bch

s2_bch_engines leansdr::s2_fecenc::s2bch

private

Definition at line 2081 of file dvbs2.h.

s2ldpc

s2_ldpc_engines<bool, hard_sb> leansdr::s2_fecenc::s2ldpc

private

Definition at line 2082 of file dvbs2.h.

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The documentation for this struct was generated from the following file:

• plugins/channelrx/demoddatv/leansdr/dvbs2.h