rough unpackbits

tools/unpackbits.py

@@ -0,0 +1,26 @@
+#!/usr/bin/python
+import sys
+
+skip = int(sys.argv[1])
+count = int(sys.argv[2])
+sys.stdin.read(skip)
+
+while True:
+    r = sys.stdin.read(1)
+    if not r:
+        break
+    n = ord(r[0])
+    if n < 128:
+        sys.stderr.write("COPY "+str(n+1)+"\n")
+        sys.stdout.write(sys.stdin.read(n+1))
+    elif n == 128:
+        sys.stderr.write("SKIP\n")
+        pass
+    elif n < 256:
+        count = (256-n) + 1
+        sys.stderr.write("RPT "+str(count)+"\n")
+        r = sys.stdin.read(1)
+        for i in range(count):
+            sys.stdout.write(r)
+    else:
+        sys.stderr.write("ERROR- VAL OUT OF RANGE\n")