EDFlib is a programming library for C/C++ for reading and writing EDF+ and BDF+ files. It also reads "old style" EDF and BDF files. EDF means European Data Format. BDF is the 24-bits version of EDF.
The library consists of only two files: edflib.h and edflib.c.
In order to use EDFlib, copy these two files to your project.
Include the file edflib.h in every source file from where you want to access the library.
Don't forget to tell your compiler that it must compile and link edflib.c (add it to
your makefile or buildscript). edflib.c needs to be compiled with the options
-D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE.
For example:
gcc -Wall -Wextra -Wshadow -Wformat-nonliteral -Wformat-security -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE test_edflib.c edflib.c -lm -o test_edflib
Compilation has been tested using GCC on Linux, Mingw-w64 on Windows, and LLVM GCC on OS X (Yosemite).
To understand how to use the library, read the comments in edflib.h.
To build the examples: make
Each "generator" example creates an EDF+ or BDF+ file with sample signals.
test_generator shows how to use most of the functions provided by the library and generates an
EDF+ or BDF+ testfile with several sample signals.
sine_generator creates a BDF+ file containing the signal "sine", a 1 Hz sinoidal waveform with a
sample frequency of 2048 Hz.
sweep_generator creates a linear or logarithmic sweep through a range of frequencies in EDF+ or
BDF+ format.
Use EDFbrowser to view these files: http://www.teuniz.net/edfbrowser/
test_edflib <filename> <signalnumber> will print the properties of the EDF/BDF header, the
annotations, and the values of 200 samples of the chosen signal. For example, running
test_generator will produce the file test_generator.edf. Running test_edflib test_generator.edf 6
will show the header and first 200 samples of the "noise" signal:
75 6 27 77 37 30 35 96 62 69 34 15 51 56 69 68 80 45 ...
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email: teuniz@gmail.com
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