init push

.gitignore

@@ -174,3 +174,6 @@ cython_debug/
 # PyPI configuration file
 .pypirc
 
+
+# ...
+*.ARW

.python-version

@@ -0,0 +1 @@
+3.13

README.md

@@ -1,3 +1,15 @@
 # qifdp
 
 QIFDP - Quick IFD Parser
+
+Tested with:
+- Sony ARW v4.0.1
+
+# Build
+
+If you don't already have uv installed: `pip install uv`
+
+```
+uv build
+pip install dist/qifdp-0.1.0.tar.gz 
+```

examples/read_ifd_tags.py

@@ -0,0 +1,19 @@
+from qifdp import IFDTagMap
+from qifdp import get_raw_ifd_tag
+
+file_path = "DSC00001.ARW"
+
+# Get the DateTimeOriginal
+date = get_raw_ifd_tag(file_path=file_path)
+print(date)
+
+# Get the camera brand name
+make = get_raw_ifd_tag(file_path=file_path, tag_bytes=IFDTagMap.Make)
+print(make)
+
+# If the buffer from 0x80000 (512k) inst enough for parsing the IFD tag,
+# you can increase the buffer. Use either a hex value or an int.
+#   0x80000  | 524288
+#   0x100000 | 1048576
+date = get_raw_ifd_tag(file_path=file_path, read_buffer=0x100000)
+print(date)

pyproject.toml

@@ -0,0 +1,32 @@
+[project]
+name = "qifdp"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = []
+
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[metadata]
+name = "qidfp"
+version = "0.1.0"
+description = "A Python library to quickly parse IFD Tags"
+long_description = "file:README.md"
+long_description_content_type = "text/markdown"
+author = "DasMoorhuhn"
+author_email = "dasmoorhuhn@proton.me"
+license = "GPLv3.0"
+url = "https://github.com/yourusername/my-library"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
+]

src/qifdp/__init__.py

@@ -0,0 +1,6 @@
+"""
+A quick IFD parser
+"""
+
+from .main import get_raw_ifd_tag
+from .main import IFDTagMap

src/qifdp/main.py

@@ -0,0 +1,78 @@
+import struct
+
+
+class IFDTagMap:
+    # Image tags
+    ImageWidth = b'\x01\x00'            # 0x0100
+    ImageLength = b'\x01\x01'           # 0x0101
+    Make = b'\x01\x0F'                  # 0x010F
+    Model = b'\x01\x10'                 # 0x0110
+    Orientation = b'\x01\x12'           # 0x0112
+    XResolution = b'\x01\x1A'           # 0x011A
+    YResolution = b'\x01\x1B'           # 0x011B
+    ResolutionUnit = b'\x01\x28'        # 0x0128
+    Software = b'\x01\x31'              # 0x0131
+    DateTime = b'\x01\x32'              # 0x0132
+    Artist = b'\x01\xB0'                # 0x01B0
+    Copyright = b'\x82\x98'             # 0x8298
+
+    # Exposure tags
+    ExposureTime = b'\x82\x9A'          # 0x829A
+    FNumber = b'\x82\x9D'               # 0x829D
+    ISOSpeedRatings = b'\x88\x69'       # 0x8827
+    ExposureBiasValue = b'\x92\x73'     # 0x9273
+    MeteringMode = b'\x92\x7C'          # 0x927C
+    Flash = b'\x92\x19'                 # 0x9209
+    FocalLength = b'\x92\x26'           # 0x920A
+
+    # Date/Time tags
+    DateTimeOriginal = b'\x90\x03'      # 0x9003
+    DateTimeDigitized = b'\x90\x04'     # 0x9004
+    SubsecTime = b'\x92\x00'            # 0x9200
+    SubsecTimeOriginal = b'\x92\x01'    # 0x9201
+    SubsecTimeDigitized = b'\x92\x02'   # 0x9202
+
+    # Image dimensions and color
+    ColorSpace = b'\xA0\x13'            # 0xA001
+    PixelXDimension = b'\xA0\x02'       # 0xA002
+    PixelYDimension = b'\xA0\x03'       # 0xA003
+
+    # Camera-specific / MakerNote
+    CameraOwnerName = b'\xC6\x0E'       # 0xC60E
+
+
+def get_raw_ifd_tag(file_path:str, read_buffer:int=0x80000, tag_bytes:bytes=IFDTagMap.DateTimeOriginal) -> str:
+    with open(file_path, "rb") as f:
+        f.seek(0, 2)
+        size_bytes = f.tell()
+        read_buffer = min(read_buffer, size_bytes)
+        f.seek(0)
+        data = f.read(read_buffer)
+
+    # Try first LE then BE
+    offset = data.find(tag_bytes[::-1])
+    endian = "<"
+    if offset == -1:
+        offset = data.find(tag_bytes)
+        endian = ">"
+        
+    if offset == -1:
+        raise ValueError("Tag 0x9003 not found in the file.")
+
+    # Read type and count
+    type_, count = struct.unpack(endian + "HI", data[offset+2:offset+8])
+
+    # Read value/offset
+    value_or_offset = struct.unpack(endian + "I", data[offset+8:offset+12])[0]
+
+    # If ASCII and count > 4, value_or_offset is the file offset of the string
+    if type_ == 2 and count > 4:
+        value_offset = value_or_offset
+        value_bytes = data[value_offset:value_offset+count]
+        value = value_bytes.decode('ascii')
+    else:
+        # Small values stored inline
+        value_bytes = data[offset+8:offset+8+count]
+        value = value_bytes.decode('ascii')
+
+    return value

uv.lock

@@ -0,0 +1,8 @@
+version = 1
+revision = 3
+requires-python = ">=3.13"
+
+[[package]]
+name = "qifdp"
+version = "0.1.0"
+source = { editable = "." }