==38070==ERROR: LeakSanitizer: detected memory leak

[conotto]

Hi,
It seems there was a memory leak introduced in the latest code, i am getting warnings below.
0.1 Tag works fine.

Thanks alot and keep up the good work!

./test

N_FFT = 128
FFT work area = 1568
F[0] = -100.0 dB
F[1] = -0.000 dB

=================================================================
==38070==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1568 byte(s) in 1 object(s) allocated from:
#0 0x7fe96fa74e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x55c6ac93295c in test4 /home/Data/ft8_lib/test.c:129
#2 0x55c6ac9322ea in main /home/Data/ft8_lib/test.c:156

SUMMARY: AddressSanitizer: 1568 byte(s) leaked in 1 allocation(s).

./decode_ft8 tests/191111_110115.wav

Sample rate 12000 Hz, 180000 samples, 15.000 seconds
Block size = 1920
Subblock size = 960
N_FFT = 3840
Max magnitude: -15.6 dB
Decoded 0 messages

=================================================================
==38101==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 357120 byte(s) in 1 object(s) allocated from:
#0 0x7f4f33da3e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x56072fb16cfb in waterfall_init /home/Data/ft8_lib/decode_ft8.c:72
#2 0x56072fb16cfb in monitor_init /home/Data/ft8_lib/decode_ft8.c:146
#3 0x200002edf ()

Direct leak of 38688 byte(s) in 1 object(s) allocated from:
#0 0x7f4f33da3e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x56072fb16ad5 in monitor_init /home/Data/ft8_lib/decode_ft8.c:141
#2 0x200002edf ()

Direct leak of 15360 byte(s) in 1 object(s) allocated from:
#0 0x7f4f33da3e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x56072fb16986 in monitor_init /home/Data/ft8_lib/decode_ft8.c:131
#2 0x200002edf ()

Direct leak of 15360 byte(s) in 1 object(s) allocated from:
#0 0x7f4f33da3e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x56072fb168fa in monitor_init /home/Data/ft8_lib/decode_ft8.c:122
#2 0x200002edf ()

SUMMARY: AddressSanitizer: 426528 byte(s) leaked in 4 allocation(s).