【发布时间】:2018-09-15 04:50:54
【问题描述】:
我已经实现了一个非常基本的 C++ CCSDS 卷积编码器 (k = 7,r = 1/2),它工作正常。但是,它非常基础,缺少操作模式(CC_STREAMING、CC_TERMINATED、CC_TAILBITING、CC_TRUNCATED)等选项。
因此,我决定使用默认的 gnuradio gr::fec::code::cc_encoder 类。我的编码超类将包括穿孔和其他块,因此一切都将在一个分层块中。到目前为止,我将块一一放入以 gr::fec::code::cc_encoder 开头的分层块中。下面是我的 .cc 实现文件。
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "debug_conv_encoder_impl.h"
namespace gr {
namespace baseband {
debug_conv_encoder::sptr
debug_conv_encoder::make(int frame_size, std::vector<int> polys, int mode, int pad)
{
return gnuradio::get_initial_sptr
(new debug_conv_encoder_impl(frame_size, polys, mode, pad));
}
/*
* The private constructor
*/
debug_conv_encoder_impl::debug_conv_encoder_impl(int frame_size, std::vector<int> polys, int mode, int pad)
: gr::hier_block2("debug_conv_encoder",
gr::io_signature::make(1, 1, sizeof(unsigned char)),
gr::io_signature::make(1, 1, sizeof(unsigned char)))
{
//Creating convolutional encoder
int k = 7;
int rate = 2;
bool d_pad = (pad == 1) ? true : false;
cc_mode_t d_mode = get_mode(mode);
gr::fec::code::cc_encoder::sptr encoder(gr::fec::code::cc_encoder::make(frame_size,k,rate,polys,0,d_mode,d_pad));
//connect(self(),0,self(),0); -- Works fine
connect(self() , 0 , encoder , 0); // --gives an error
connect(encoder , 0 , self() , 0); // --gives an error
//connect(encoder);
}
cc_mode_t debug_conv_encoder_impl::get_mode(int mode)
{
switch(mode)
{
case 0:
return CC_STREAMING;
case 1:
return CC_TERMINATED;
case 2:
return CC_TRUNCATED;
case 3:
return CC_TAILBITING;
default:
return CC_STREAMING;
}
}
/*
* Our virtual destructor.
*/
debug_conv_encoder_impl::~debug_conv_encoder_impl()
{
}
} /* namespace baseband */
} /* namespace gr */
这是头文件
#ifndef INCLUDED_BASEBAND_DEBUG_CONV_ENCODER_IMPL_H
#define INCLUDED_BASEBAND_DEBUG_CONV_ENCODER_IMPL_H
#include <baseband/debug_conv_encoder.h>
#include <gnuradio/fec/cc_encoder.h>
namespace gr {
namespace baseband {
class debug_conv_encoder_impl : public debug_conv_encoder
{
private:
cc_mode_t get_mode(int mode);
public:
debug_conv_encoder_impl(int frame_size, std::vector<int> polys, int mode, int pad);
~debug_conv_encoder_impl();
// Where all the action really happens
};
} // namespace baseband
} // namespace gr
#endif /* INCLUDED_BASEBAND_DEBUG_CONV_ENCODER_IMPL_H */
不幸的是,编译和链接文件(cmake .. && make)给出了这个错误:
xxx/GRC/baseband/gr-baseband/lib/debug_conv_encoder_impl.cc:53:39: error: no matching function for call to ‘gr::baseband::debug_conv_encoder_impl::connect(gr::hier_block2::opaque_self, int, gr::fec::generic_encoder::sptr&, int)’
connect(self() , 0 , encoder , 0);
/usr/local/include/gnuradio/hier_block2.h:105:10: note: no known conversion for argument 3 from ‘gr::fec::generic_encoder::sptr {aka boost::shared_ptr<gr::fec::generic_encoder>}’ to ‘gr::basic_block_sptr {aka boost::shared_ptr<gr::basic_block>}’
基本上,“gr::fec::generic_encoder::sptr {aka boost::shared_ptr<:fec::generic_encoder>}”行到 'gr::basic_block_sptr {aka boost::shared_ptr
我以这种方式创建了许多分层块,但从未遇到此错误。我很确定我缺少一些重要的东西。任何帮助将不胜感激。顺便说一句,如果需要更多信息,请告诉我。 干杯。
【问题讨论】:
标签: c++ gnuradio gnuradio-companion