Initial commit.

README.md

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+KTX Stats Extractor
+-------------------
+
+Extract embedded JSON statistics to `somedemo.json`:
+
+```
+./ktx-stats.py somedemo.mvd
+```
+
+For more details see `stats.c` in the [KTX repository](https://github.com/QW-Group/ktx).

ktx-stats.py

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+#!/usr/bin/env python
+import struct
+import json
+import sys
+import os
+
+with open(sys.argv[1], "rb") as fd:
+    data = fd.read()
+
+offset = data.rfind(b"\x0a\x00\x00\x03\x00\x00\x00\x00")
+offset += 2
+
+content = b""
+
+while data[offset:offset + 4] == b"\x00\x03\x00\x00":
+    (length,) = struct.unpack("<H", data[offset+10:offset+12])
+    start = offset + 18
+    end = start + length - 2
+    content += data[start:end]
+    offset = end
+
+try:
+    json.loads(content)
+    print("success", sys.argv[1])
+    (name, _) = os.path.splitext(sys.argv[1])
+
+    with open(name + ".json", "wb+") as fd:
+        fd.write(content)
+except:
+    print("failed to load", sys.argv[1])