rpitx/ft8_lib
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Fixed compilation errors

Browse source
This commit is contained in:
Karlis Goba 2018-12-22 16:09:43 +02:00
parent 4e5bd7ce69
commit bff6589f7f
2 changed files with 16 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
Makefile
View file

@ -1,9 +1,12 @@
CXXFLAGS = -std=c++14 -I.
LDFLAGS = -lm
.PHONY: run_tests all
TARGETS = gen_ft8
#TARGETS = gen_ft8 decode_ft8 test
all: gen_ft8 # decode_ft8 test
.PHONY: run_tests all clean
all: $(TARGETS)
run_tests: test
@./test
@ -16,3 +19,6 @@ gen_ft8: gen_ft8.o ft8/constants.o ft8/text.o ft8/pack_v2.o ft8/encode_v2.o comm
#decode_ft8: decode_ft8.o fft/kiss_fftr.o fft/kiss_fft.o ft8/ldpc.o ft8/unpack.o ft8/text.o common/wave.o
# $(CXX) $(LDFLAGS) -o $@ $^
clean:
rm -f *.o ft8/*.o common/*.o fft/*.o $(TARGETS)

16
gen_ft8.cpp
View file

@ -4,11 +4,11 @@
#include <cmath>
#include "common/wave.h"
#include "ft8/pack.h"
#include "ft8/encode.h"
//#include "ft8/v1/pack.h"
//#include "ft8/v1/encode.h"
#include "ft8/pack_v2.h"
#include "ft8/encode_v2.h"
#include "ft8/constants.h"
// Convert a sequence of symbols (tones) into a sinewave of continuous phase (FSK).
// Symbol 0 gets encoded as a sine of frequency f0, the others are spaced in increasing
@ -56,7 +56,7 @@ int main(int argc, char **argv) {
const char *message = argv[1];
const char *wav_path = argv[2];
// First, pack the text data into 72-bit binary message
// First, pack the text data into binary message
uint8_t packed[10];
//int rc = packmsg(message, packed);
int rc = ft8_v2::pack77(message, packed);
@ -73,25 +73,25 @@ int main(int argc, char **argv) {
printf("\n");
// Second, encode the binary message as a sequence of FSK tones
uint8_t tones[NN]; // NN = 79, lack of better name at the moment
uint8_t tones[FT8_NN]; // FT8_NN = 79, lack of better name at the moment
//genft8(packed, 0, tones);
ft8_v2::genft8(packed, tones);
printf("FSK tones: ");
for (int j = 0; j < NN; ++j) {
for (int j = 0; j < FT8_NN; ++j) {
printf("%d", tones[j]);
}
printf("\n");
// Third, convert the FSK tones into an audio signal
const int num_samples = (int)(0.5 + NN / 6.25 * 12000);
const int num_samples = (int)(0.5 + FT8_NN / 6.25 * 12000);
const int num_silence = (15 * 12000 - num_samples) / 2;
float signal[num_silence + num_samples + num_silence];
for (int i = 0; i < num_silence + num_samples + num_silence; i++) {
signal[i] = 0;
}
synth_fsk(tones, NN, 1000, 6.25, 6.25, 12000, signal + num_silence);
synth_fsk(tones, FT8_NN, 1000, 6.25, 6.25, 12000, signal + num_silence);
save_wav(signal, num_silence + num_samples + num_silence, 12000, wav_path);
return 0;