forked from sdr/gr-osmosdr
rtl_tcp: add support for tuner caps discovery
This commit is contained in:
parent
ad2e5523cb
commit
43a6afdf28
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@ -35,6 +35,22 @@
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using namespace boost::assign;
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std::string get_tuner_name( enum rtlsdr_tuner tuner_type )
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{
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if ( RTLSDR_TUNER_E4000 == tuner_type )
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return "E4000";
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else if ( RTLSDR_TUNER_FC0012 == tuner_type )
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return "FC0012";
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else if ( RTLSDR_TUNER_FC0013 == tuner_type )
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return "FC0013";
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else if ( RTLSDR_TUNER_FC2580 == tuner_type )
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return "FC2580";
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else if ( RTLSDR_TUNER_R820T == tuner_type )
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return "R820T";
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else
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return "Unknown";
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}
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rtl_tcp_source_c_sptr make_rtl_tcp_source_c(const std::string &args)
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{
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return gnuradio::get_initial_sptr(new rtl_tcp_source_c(args));
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@ -83,7 +99,16 @@ rtl_tcp_source_c::rtl_tcp_source_c(const std::string &args) :
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_src = make_rtl_tcp_source_f(sizeof(float), host.c_str(), port, payload_size,
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false, false);
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set_gain_mode(false); // enable manual gain mode by default
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if ( _src->get_tuner_type() != RTLSDR_TUNER_UNKNOWN )
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{
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std::cerr << "The RTL TCP server reports a "
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<< get_tuner_name( _src->get_tuner_type() )
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<< " tuner with " << _src->get_tuner_gain_count()
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<< " selectable gains."
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<< std::endl;
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}
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set_gain_mode(false); /* enable manual gain mode by default */
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/* rtl tcp source provides a stream of interleaved IQ floats */
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gr_deinterleave_sptr deinterleave = gr_make_deinterleave(sizeof(float));
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@ -201,26 +226,52 @@ osmosdr::gain_range_t rtl_tcp_source_c::get_gain_range( size_t chan )
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{
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osmosdr::gain_range_t range;
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// FIXME: assumption on E4000 tuner
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/* the following gain values have been copied from librtlsdr */
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range += osmosdr::range_t( -1.0 );
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range += osmosdr::range_t( 1.5 );
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range += osmosdr::range_t( 4.0 );
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range += osmosdr::range_t( 6.5 );
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range += osmosdr::range_t( 9.0 );
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range += osmosdr::range_t( 11.5 );
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range += osmosdr::range_t( 14.0 );
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range += osmosdr::range_t( 16.5 );
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range += osmosdr::range_t( 19.0 );
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range += osmosdr::range_t( 21.5 );
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range += osmosdr::range_t( 24.0 );
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range += osmosdr::range_t( 29.0 );
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range += osmosdr::range_t( 34.0 );
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range += osmosdr::range_t( 42.0 );
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range += osmosdr::range_t( 43.0 );
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range += osmosdr::range_t( 45.0 );
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range += osmosdr::range_t( 47.0 );
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range += osmosdr::range_t( 49.0 );
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/* all gain values are expressed in tenths of a dB */
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const int e4k_gains[] = { -10, 15, 40, 65, 90, 115, 140, 165, 190, 215,
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240, 290, 340, 420 };
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const int fc0012_gains[] = { -99, -40, 71, 179, 192 };
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const int fc0013_gains[] = { -99, -73, -65, -63, -60, -58, -54, 58, 61,
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63, 65, 67, 68, 70, 71, 179, 181, 182,
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184, 186, 188, 191, 197 };
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const int fc2580_gains[] = { 0 /* no gain values */ };
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const int r820t_gains[] = { 0, 9, 14, 27, 37, 77, 87, 125, 144, 157,
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166, 197, 207, 229, 254, 280, 297, 328,
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338, 364, 372, 386, 402, 421, 434, 439,
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445, 480, 496 };
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const int unknown_gains[] = { 0 /* no gain values */ };
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const int *ptr = NULL;
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int len = 0;
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switch (_src->get_tuner_type())
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{
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case RTLSDR_TUNER_E4000:
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ptr = e4k_gains; len = sizeof(e4k_gains);
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break;
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case RTLSDR_TUNER_FC0012:
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ptr = fc0012_gains; len = sizeof(fc0012_gains);
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break;
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case RTLSDR_TUNER_FC0013:
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ptr = fc0013_gains; len = sizeof(fc0013_gains);
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break;
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case RTLSDR_TUNER_FC2580:
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ptr = fc2580_gains; len = sizeof(fc2580_gains);
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break;
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case RTLSDR_TUNER_R820T:
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ptr = r820t_gains; len = sizeof(r820t_gains);
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break;
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default:
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ptr = unknown_gains; len = sizeof(unknown_gains);
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break;
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}
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if ( ptr != NULL && len > 0 )
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{
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for (int i = 0; i < int(len / sizeof(int)); i++)
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range += osmosdr::range_t( ptr[i] / 10.0f );
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}
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return range;
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}
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@ -1,6 +1,7 @@
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/* -*- c++ -*- */
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/*
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* Copyright 2012 Hoernchen <la@tfc-server.de>
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* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -33,6 +34,13 @@
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#include <WinSock2.h>
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#endif
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/* copied from rtl sdr code */
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typedef struct { /* structure size must be multiple of 2 bytes */
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char magic[4];
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uint32_t tuner_type;
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uint32_t tuner_gain_count;
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} dongle_info_t;
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#define USE_SELECT 1 // non-blocking receive on all platforms
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#define USE_RCV_TIMEO 0 // non-blocking receive on all but Cygwin
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#define SRC_VERBOSE 0
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@ -83,9 +91,9 @@ rtl_tcp_source_f::rtl_tcp_source_f(size_t itemsize,
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: gr_sync_block ("rtl_tcp_source_f",
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gr_make_io_signature(0, 0, 0),
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gr_make_io_signature(1, 1, sizeof(float))),
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d_itemsize(itemsize),
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d_itemsize(itemsize),
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d_payload_size(payload_size),
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d_eof(eof),
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d_eof(eof),
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d_wait(wait),
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d_socket(-1),
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d_temp_offset(0)
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@ -163,12 +171,25 @@ rtl_tcp_source_f::rtl_tcp_source_f(size_t itemsize,
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}
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#endif // USE_RCV_TIMEO
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while(connect(d_socket, ip_src->ai_addr, ip_src->ai_addrlen) != 0);
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freeaddrinfo(ip_src);
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int flag = 1;
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setsockopt(d_socket, IPPROTO_TCP, TCP_NODELAY, (char *)&flag,sizeof(flag));
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dongle_info_t dongle_info;
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ret = recv(d_socket, (char*)&dongle_info, sizeof(dongle_info), 0);
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if (sizeof(dongle_info) != ret)
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fprintf(stderr,"failed to read dongle info\n");
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d_tuner_type = RTLSDR_TUNER_UNKNOWN;
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d_tuner_gain_count = 0;
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if (memcmp(dongle_info.magic, "RTL0", 4) == 0)
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{
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d_tuner_type = ntohl(dongle_info.tuner_type);
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d_tuner_gain_count = ntohl(dongle_info.tuner_gain_count);
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}
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}
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rtl_tcp_source_f_sptr make_rtl_tcp_source_f (size_t itemsize,
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@ -44,6 +44,16 @@ typedef void* optval_t;
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#define ssize_t int
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/* copied from rtl sdr */
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enum rtlsdr_tuner {
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RTLSDR_TUNER_UNKNOWN = 0,
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RTLSDR_TUNER_E4000,
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RTLSDR_TUNER_FC0012,
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RTLSDR_TUNER_FC0013,
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RTLSDR_TUNER_FC2580,
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RTLSDR_TUNER_R820T
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};
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class rtl_tcp_source_f;
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typedef boost::shared_ptr<rtl_tcp_source_f> rtl_tcp_source_f_sptr;
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@ -67,6 +77,9 @@ private:
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size_t d_temp_offset; // point to temp buffer location offset
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float *d_LUT;
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unsigned int d_tuner_type;
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unsigned int d_tuner_gain_count;
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private:
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rtl_tcp_source_f(size_t itemsize, const char *host,
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unsigned short port, int payload_size, bool eof, bool wait);
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@ -84,6 +97,9 @@ private:
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public:
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~rtl_tcp_source_f();
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enum rtlsdr_tuner get_tuner_type() { return (enum rtlsdr_tuner) d_tuner_type; }
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unsigned int get_tuner_gain_count() { return d_tuner_gain_count; }
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int work(int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);
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