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rtl_fm: windows support

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Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Kyle Keen 2012-10-26 17:20:29 -04:00 committed by Steve Markgraf
parent 30cf1f3598
commit 3fdea955ca
2 changed files with 24 additions and 14 deletions
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12
src/CMakeLists.txt
View File

@ -69,12 +69,8 @@ endif()
add_executable(rtl_sdr rtl_sdr.c)
add_executable(rtl_tcp rtl_tcp.c)
add_executable(rtl_test rtl_test.c)
set(INSTALL_TARGETS rtlsdr_shared rtlsdr_static rtl_sdr rtl_tcp rtl_test)
if(UNIX)
LIST(APPEND INSTALL_TARGETS rtl_fm)
add_executable(rtl_fm rtl_fm.c)
endif()
set(INSTALL_TARGETS rtlsdr_shared rtlsdr_static rtl_sdr rtl_tcp rtl_test rtl_fm)
target_link_libraries(rtl_sdr rtlsdr_shared
${LIBUSB_LIBRARIES}
@ -88,12 +84,12 @@ target_link_libraries(rtl_test rtlsdr_shared
${LIBUSB_LIBRARIES}
${CMAKE_THREAD_LIBS_INIT}
)
if(UNIX)
target_link_libraries(rtl_fm rtlsdr_shared
${LIBUSB_LIBRARIES}
${CMAKE_THREAD_LIBS_INIT}
m
)
if(UNIX)
target_link_libraries(rtl_fm m)
if(APPLE)
target_link_libraries(rtl_test m)
else()
@ -105,9 +101,11 @@ if(WIN32)
target_link_libraries(rtl_sdr libgetopt_static)
target_link_libraries(rtl_tcp libgetopt_static)
target_link_libraries(rtl_test libgetopt_static)
target_link_libraries(rtl_fm libgetopt_static)
set_property(TARGET rtl_sdr APPEND PROPERTY COMPILE_DEFINITIONS "rtlsdr_STATIC" )
set_property(TARGET rtl_tcp APPEND PROPERTY COMPILE_DEFINITIONS "rtlsdr_STATIC" )
set_property(TARGET rtl_test APPEND PROPERTY COMPILE_DEFINITIONS "rtlsdr_STATIC" )
set_property(TARGET rtl_fm APPEND PROPERTY COMPILE_DEFINITIONS "rtlsdr_STATIC" )
endif()
########################################################################
# Install built library files & utilities

26
src/rtl_fm.c
View File

@ -32,6 +32,9 @@
* nicer FIR than square
* scale squelch to other input parameters
* test all the demodulations
* sci notation parsing
* pad output on hop
* nearest gain approx
*/
#include <errno.h>
@ -45,7 +48,11 @@
#include <unistd.h>
#else
#include <Windows.h>
#include <fcntl.h>
#include <io.h>
#include "getopt/getopt.h"
#define usleep(x) Sleep(x/1000)
#define round(x) (x > 0.0 ? floor(x + 0.5): ceil(x - 0.5))
#endif
#include <semaphore.h>
@ -120,7 +127,7 @@ void usage(void)
"\t[-E sets lower edge tuning (default: center)]\n"
"\t[-N enables NBFM mode (default: on)]\n"
"\t[-W enables WBFM mode (default: off)]\n"
"\t (-N -s 170e3 -o 4 -A -r 16e3 -l 0 -D)\n"
"\t (-N -s 170e3 -o 4 -A -r 32e3 -l 0 -D)\n"
"\tfilename (a '-' dumps samples to stdout)\n\n"
"Experimental options:\n"
"\t[-r output rate (default: same as -s)]\n"
@ -134,8 +141,10 @@ void usage(void)
"\t[-F enables high quality FIR (default: off/square)]\n"
"\t[-D enables de-emphasis (default: off)]\n"
"\t[-A enables high speed arctan (default: off)]\n\n"
"Produces signed 16 bit ints, use Sox to hear them.\n"
"\trtl_fm ... - | play -t raw -r 24k -e signed-integer -b 16 -c 1 -V1 -\n\n");
"Produces signed 16 bit ints, use Sox or aplay to hear them.\n"
"\trtl_fm ... - | play -t raw -r 24k -e signed-integer -b 16 -c 1 -V1 -\n"
"\t | aplay -r 24k -f S16_LE -t raw -c 1\n"
"\t -s 22050 - | multimon -t raw /dev/stdin\n\n");
exit(1);
}
@ -539,7 +548,7 @@ static void rtlsdr_callback(unsigned char *buf, uint32_t len, void *ctx)
/* single threaded uses 25% less CPU? */
/* full_demod(fm2); */
sem_getvalue(&data_ready, &dr_val);
if (!dr_val) {
if (dr_val <= 0) {
sem_post(&data_ready);}
}
@ -634,7 +643,7 @@ int main(int argc, char **argv)
wb_mode = 1;
fm.mode_demod = &fm_demod;
fm.sample_rate = 170000;
fm.output_rate = 16000;
fm.output_rate = 32000;
fm.custom_atan = 1;
fm.post_downsample = 4;
fm.deemph = 1;
@ -730,6 +739,9 @@ int main(int argc, char **argv)
if (strcmp(filename, "-") == 0) { /* Write samples to stdout */
fm.file = stdout;
#ifdef _WIN32
_setmode(_fileno(fm.file), _O_BINARY);
#endif
} else {
fm.file = fopen(filename, "wb");
if (!fm.file) {
@ -754,8 +766,8 @@ int main(int argc, char **argv)
fprintf(stderr, "\nLibrary error %d, exiting...\n", r);}
rtlsdr_cancel_async(dev);
if (fm.file != stdout)
fclose(fm.file);
if (fm.file != stdout) {
fclose(fm.file);}
rtlsdr_close(dev);
free (buffer);