在分层块中使用 gr::fec::code::cc_encoder class
Using gr::fec::code::cc_encoder class in a hierarchical block
我实现了一个非常基本的 C++ CCSDS 卷积编码器 (k = 7
,r = 1/2
),它运行良好。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 class。我的编码 superclass 将包括打孔和其他块,因此所有内容都将在一个分层块中。到目前为止,我将块一个一个地放在以 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,行“gr::fec::generic_encoder::sptr {aka boost::shared_ptr}”到“gr::basic_block_sptr {aka boost::shared_ptr< gr::basic_block>}'" 表示共享指针 gr::fec::generic_encoder 无法按照 hier_block2.connect 的要求转换为 gr::basic_block (basic_block_sptr src, int src_port, basic_block_sptr dst, int dst_port).
我用这种方法创建了很多层次块,但从未遇到过这个错误。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。
cc_encoder
不是块,因此您不能像块一样在流程图中连接它。
事实上,您不应该实例化它,即使它只是一个抽象基础 class:
https://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1code_1_1cc__encoder.html
我不太确定您需要什么编码器,但无论如何,这 class 不是正确的选择。
我终于能够解决这个问题。事实证明,Gnu 无线电 FECAPI 提供了编码器变量来定义 FEC 属性(classes 从 gr::fec::generic_encoder class 派生,例如 cc_encoder、ldpc_encoder 等)和部署变量(与 GNU 无线电流程图中的调度程序和编码器变量交互。部署变量“gr::fec::encoder”可以与数字一起使用编码器变量,例如 cc_encoder 或 LDPC 编码器。工作函数现在如下所示。OOT 现在编译并正常工作。
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 a coder variable
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 coder_variable(gr::fec::code::cc_encoder::make(frame_size,k,rate,polys,0,d_mode,d_pad));
//Creating a deployment variable
gr::fec::encoder::sptr coder_deployment(gr::fec::encoder::make(coder_variable,sizeof(unsigned char),sizeof(unsigned char)));
connect(self() , 0 , coder_deployment , 0);
connect(coder_deployment , 0 , self() , 0);
//connect(encoder);
}
我实现了一个非常基本的 C++ CCSDS 卷积编码器 (k = 7
,r = 1/2
),它运行良好。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 class。我的编码 superclass 将包括打孔和其他块,因此所有内容都将在一个分层块中。到目前为止,我将块一个一个地放在以 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,行“gr::fec::generic_encoder::sptr {aka boost::shared_ptr
我用这种方法创建了很多层次块,但从未遇到过这个错误。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。
cc_encoder
不是块,因此您不能像块一样在流程图中连接它。
事实上,您不应该实例化它,即使它只是一个抽象基础 class:
https://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1code_1_1cc__encoder.html
我不太确定您需要什么编码器,但无论如何,这 class 不是正确的选择。
我终于能够解决这个问题。事实证明,Gnu 无线电 FECAPI 提供了编码器变量来定义 FEC 属性(classes 从 gr::fec::generic_encoder class 派生,例如 cc_encoder、ldpc_encoder 等)和部署变量(与 GNU 无线电流程图中的调度程序和编码器变量交互。部署变量“gr::fec::encoder”可以与数字一起使用编码器变量,例如 cc_encoder 或 LDPC 编码器。工作函数现在如下所示。OOT 现在编译并正常工作。
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 a coder variable
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 coder_variable(gr::fec::code::cc_encoder::make(frame_size,k,rate,polys,0,d_mode,d_pad));
//Creating a deployment variable
gr::fec::encoder::sptr coder_deployment(gr::fec::encoder::make(coder_variable,sizeof(unsigned char),sizeof(unsigned char)));
connect(self() , 0 , coder_deployment , 0);
connect(coder_deployment , 0 , self() , 0);
//connect(encoder);
}