First and rough kina working version

Author: chgans

README.md

@@ -1,2 +1,54 @@
 # bsdiff
-A tool to diff bitstream files
+An experimental tool to diff bitstream files
+
+I'm trying to reverse engineer some proprietary binary files, and I
+noticed that these files are bit streams (as opposed to byte stream).
+
+My approach is to compare two files that have minimal diferrence and
+see how the bitstream behave, I need to be able to detect bit flips as
+well as bit insertion/deletion between two files.
+
+This is a very beta version of such a tool, it attempts to mimic the
+unix "diff" tool, but display bits instead of text.
+
+For now, the algorithm is very stupid and simple, it doesn't yet
+understand the concept of context as used in GNU diff and patch.
+
+I might improve this tool to fit my needs.
+
+# Example output
+
+In the example below, you can see that at position 0, the first file
+contains "1100" where as the second file contains "0010".
+
+Then the files are identical up to the 144975'th bit. At this bit
+position, the first file contains "110" whereas the second one
+contains "01100", that is the second file as 2 more bits that the
+first one.
+
+The two files have then roughly 10k identical bits, after which there
+a new difference "110" vs "011010110", ...
+
+As you might have noticed, this tool is able to track bit assertion
+and removal.
+
+  $ bsdiff Si8605AC-B-IS1.bxl Si8606AC-B-IS1.bxl
+  --- Si8605AC-B-IS1.bxl
+  +++ Si8606AC-B-IS1.bxl
+  @@ [4,0] -4,-4 +4,4 @@
+  -1100
+  +0010
+   ^^^
+  @@ [3,2] -144975,-3 +144975,5 @@
+  -  110
+  +01100
+   ^^ ^
+  @@ [3,6] -152419,-3 +152421,9 @@
+  -      110
+  +011010110
+   ^^^^^^
+  @@ [2,0] -154292,-2 +154300,2 @@
+  -11
+  +01
+   ^
+  ...

bindiff.pro

@@ -0,0 +1,20 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2015-07-09T10:58:01
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = bindiff
+TEMPLATE = app
+
+
+SOURCES += main.cpp\
+        mainwindow.cpp
+
+HEADERS  += mainwindow.h
+
+FORMS    += mainwindow.ui