Version 0.21

README.md

@@ -31,6 +31,11 @@ cmake ../  # Note to Arch Linux users: add "-DCMAKE_INSTALL_PREFIX=/usr"
 make && sudo make install
 ```
 
+The following dependencies are required:
+- numpy
+- scipy
+- liquid-dsp (https://github.com/jgaeddert/liquid-dsp)
+
 
 Testing
 -------
@@ -67,5 +72,6 @@ See the LICENSE file for the license of this project. If you are working on a pr
 Changelog
 ---------
 
-- Version 0.2: C++ realtime decoder, manual finetuning for correcting frequency offsets of the transmitter.
-- Version 0.1: Python prototype file based decoder, SF7, CR4/8
+- Versuib 0.21: Fixed some issues reported by reletreby
+- Version 0.2 : C++ realtime decoder, manual finetuning for correcting frequency offsets of the transmitter.
+- Version 0.1 : Python prototype file based decoder, SF7, CR4/8

lib/decoder_impl.cc

@@ -121,7 +121,7 @@ namespace gr {
     void decoder_impl::samples_to_file(const std::string path, const gr_complex* v, int length, int elem_size) {
         #ifndef NO_TMP_WRITES
             std::ofstream out_file;
-            out_file.open(path, std::ios::out | std::ios::binary);
+            out_file.open(path.c_str(), std::ios::out | std::ios::binary);
             //for(std::vector<gr_complex>::const_iterator it = v.begin(); it != v.end(); ++it) {
             for(uint32_t i = 0; i < length; i++) {
                 out_file.write(reinterpret_cast<const char *>(&v[i]), elem_size);

python/lora_decoder.py

@@ -56,7 +56,6 @@ import numpy
 import struct
 from gnuradio import gr
 from scipy import signal
-from scapy.all import hexdump
 
 DELAY_AFTER_SYNC = 268  # Delay window after two downchirps in the LoRa signal
 EPSILON = 0.001