Mac OSX 编译 LeanSDR

LeanSDR:Lightweight, portable software-defined radio

git clone http://github.com/pabr/leansdr.git
cd leansdr/src/apps

LeanSDR在使用过程中需要使用X11图形框架,首次在OSX编译LeanSDR会有报错：

g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leandvb.cc -lX11 -o leandvb  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leandvb.cc       -o leandvb
In file included from leandvb.cc:17:
../leansdr/gui.h:16:10: fatal error: 'X11/X.h' file not found
#include <X11/X.h>
         ^
1 error generated.
g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leansdrscan.cc -lX11 -o leansdrscan  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leansdrscan.cc       -o leansdrscan
leansdrscan.cc:115:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
        if ( nr < 0 ) fatal("read");
             ~~ ^ ~
1 warning generated.
ld: library not found for -lX11
clang: error: linker command failed with exit code 1 (use -v to see invocation)
leansdrscan.cc:115:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
        if ( nr < 0 ) fatal("read");
             ~~ ^ ~
1 warning generated.
g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leansdrcat.cc -lX11 -o leansdrcat  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leansdrcat.cc       -o leansdrcat
ld: library not found for -lX11
clang: error: linker command failed with exit code 1 (use -v to see invocation)
g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leantsgen.cc -lX11 -o leantsgen  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leantsgen.cc       -o leantsgen
ld: library not found for -lX11
clang: error: linker command failed with exit code 1 (use -v to see invocation)
g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leanchansim.cc -lX11 -o leanchansim  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leanchansim.cc       -o leanchansim
ld: library not found for -lX11
clang: error: linker command failed with exit code 1 (use -v to see invocation)
g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable -DGUI leandvbtx.cc -lX11 -o leandvbtx  ||  \
    g++ -O3 -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable       leandvbtx.cc       -o leandvbtx
ld: library not found for -lX11
clang: error: linker command failed with exit code 1 (use -v to see invocation)

查找X11目录

sudo find / -name "X.h"
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.4/Headers/X11/X.h
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/X.h
find: /dev/fd/cn0xroot: No such file or directory
find: /dev/fd/cn0xroot: No such file or directory
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/X.h
/opt/local/include/X11/X.h
/opt/local/share/doc/boost/libs/coroutine/example/cpp03/asymmetric/X.h
/opt/metasploit-framework/embedded/include/X11/X.h
/opt/X11/include/X11/X.h
/System/Library/Frameworks/Tk.framework/Versions/8.4/Headers/X11/X.h
/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/X.h

解决方案：修改Makefile

APPS = leandvb leansdrscan
APPS += leansdrcat leantsgen leanchansim leandvbtx

all: $(APPS)

clean:
rm -f $(APPS)

DEPS = ../leansdr/*.h

CXXFLAGS = -O3 -I.. -I/opt/X11/include -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable

%: %.cc $(DEPS)
g++ $(CXXFLAGS) -DGUI $< -lX11 -L/opt/X11/lib -o $@ || \
g++ $(CXXFLAGS) $< -o $@

EMBED_FLAGS= -I.. -Wall -Wno-sign-compare -Wno-array-bounds -Wno-unused-variable \
-Ofast -mfpu=neon -funsafe-math-optimizations -fsingle-precision-constant

leandvb.embedded: leandvb.cc $(DEPS)
g++ $(CXXFLAGS) $(EMBED_FLAGS) $< -static -o $@ || \
g++ $(CXXFLAGS) $(EMBED_FLAGS) $< -o $@

make

Usage

leandvb --help
Usage: leandvb [options]  < IQ  > TS
Demodulate DVB-S I/Q on stdin, output MPEG packets on stdout

Input options:
  --u8           Input format is 8-bit unsigned (rtl_sdr, default)
  --f32          Input format is 32-bit float (gqrx)
  -f HZ          Input sample rate (default: 2.4e6)
  --loop         Repeat (stdin must be a file)
  --inbuf N      Additional input buffering (samples)

Preprocessing options:
  --anf N        Number of birdies to remove (default: 1)
  --derotate HZ  For use with --fd-pp, otherwise use --tune
  --resample     Resample baseband (CPU-intensive)
  --resample-rej K  Aliasing rejection (default: 10)
  --decim N      Decimate baseband (causes aliasing)
  --cnr          Measure CNR (requires samplerate>3*symbolrate)
  --fd-pp NUM    Dump preprocessed IQ data to file descriptor

DVB-S options:
  --sr HZ        Symbol rate (default: 2e6)
  --tune HZ      Bias frequency for demodulation
  --drift        Track frequency drift beyond safe limits
  --standard S   DVB-S (default), DVB-S2 (not implemented)
  --const C      QPSK (default), BPSK .. 32APSK (DVB-S2 only)
  --cr N/D       Code rate 1/2 (default) .. 7/8 .. 9/10
  --fastlock     Synchronize more aggressively (CPU-intensive)
  --sampler      nearest, linear, rrc
  --rrc-steps N  RRC interpolation factor
  --rrc-rej K    RRC filter rejection (defaut:10)
  --roll-off A   RRC roll-off (default: 0.35)
  --viterbi      Use Viterbi (CPU-intensive)
  --hard-metric  Use Hamming distances with Viterbi

Compatibility options:
  --hdlc         Expect HDLC frames instead of MPEG packets
  --packetized   Output 16-bit length prefix (default: as stream)

General options:
  --buf-factor   Buffer size factor (default:4)
  --hq           Maximize sensitivity
                 (Enables all CPU-intensive features)
  --hs           Maximize throughput (QPSK CR1/2 only)
                 (Disables all preprocessing)

UI options:
  -h             Display this help message and exit
  -v             Output debugging info at startup and exit
  -d             Output debugging info during operation
  --fd-info NUM  Output demodulator status to file descriptor
  --fd-const NUM Output constellation and symbols to file descr
  --gui          Show constellation and spectrum (X11)
  --duration S   Width of timeline plot (default: 60)
  --linger       Keep GUI running after EOF

Testing options:
  --awgn STDDEV  Add white gaussian noise (slow)

eanchansim --help
Usage: leanchansim [options]  < IQ.in  > IQ.out
Simulate an imperfect communication channel.

Input options:
  --iu8              Interpret stdin as complex unsigned char
  --if32             Interpret stdin as complex float
  -f Hz              Specify sample rate
  --loop             Repeat (stdin must be a file)

Gain options:
  --scale FACTOR     Multiply by constant

Drift options:
  --lo HZ            Specify nominal LO frequency
  --ppm PPM          Specify LO accuracy
  --drift-period S   Drift +-ppm every S seconds
  --drift-rate R     Drift with maximum rate R (Hz/s)
  --drift2-amp HZ    Add secondary drift (range in Hz)
  --drift2-freq HZ   Add secondary drift (rate in Hz)

Noise options:
  --awgn STDDEV      Add white gaussian noise (dB)

Output options:
  --ou8              Output as complex unsigned char
  --of32             Output as complex float

leandvbtx --help
Usage: leandvbtx [options]  < TS  > IQ
Modulate MPEG packets into a DVB-S baseband signal
Output float complex samples

Options:  -f INTERP[/DECIM]        Samples per symbols (default: 2)
  --roll-off R             RRC roll-off (defalt: 0.35)
  --power P                Output power (dB)
  --agc                    Better regulation of output power
  -v                       Verbose output

leansdrcat --help
Usage: leansdrcat [options]
Forward from stdin to stdout at constant rate.

Options:
  --block      Pause when stdout is busy (default: '#' on stderr)
  --nonblock   Silently ignore when stdout is busy
  --cbr R      Set rate in bits per second
  --cbr8 R     Set rate in bytes per second
  --cbr16 R    Set rate in 16-bit words per second
  --cbr32 R    Set rate in 32-bit words per second
  --cbr64 R    Set rate in 64-bit words per second
  -h           Display this help message and exit

leansdrscan --help
Usage: leansdrscan [options]  [program settings]
Run , cycling through combinations of settings.
Example: 'leansdrscan -v cat -n,-e' will feed stdin through 'cat -n' and 'cat -e' alternatively.

Options:
  -h              Print this message
  -v              Verbose
  --timeout N     Next settings if no output within N seconds
  --rewind        Rewind input (stdin must be a file)
  --probesize N   Forward only N bytes (with --rewind)

leantsgen --help
Usage: leantsgen [-c PACKETCOUNT]
Output numbered MPEG TS packets on stdout.

Example

rtl_sdr -g 0 -f 315e6 -s 1000000 /tmp/test.ts
leandvb --gui -v -d -f 1000e3 --sr 500e3 --cr 1/2 --derotate -4500 --anf 0 < /tmp/test.ts > mpeg.ts

https://www.rtl-sdr.com/transmitting-dvb-s-with-a-plutosdr-and-receiving-it-with-an-rtl-sdr/

http://www.pabr.org/radio/leandvb/leandvb.en.html