marcocosta10000
6b3b6541a7
Initial project setup including the main agent script, configuration files, profile JSON state, systemd service unit, startup script, deployment documentation, and Python dependencies. Includes .env, venv/, and __pycache__/ which should likely be excluded via .gitignore to avoid committing secrets and artifacts.
173 lines
3.4 KiB
Python
173 lines
3.4 KiB
Python
"""Constants specific the the image sub-package."""
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class JPEG_MARKER_CODE:
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"""JPEG marker codes."""
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TEM = b"\x01"
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DHT = b"\xc4"
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DAC = b"\xcc"
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JPG = b"\xc8"
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SOF0 = b"\xc0"
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SOF1 = b"\xc1"
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SOF2 = b"\xc2"
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SOF3 = b"\xc3"
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SOF5 = b"\xc5"
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SOF6 = b"\xc6"
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SOF7 = b"\xc7"
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SOF9 = b"\xc9"
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SOFA = b"\xca"
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SOFB = b"\xcb"
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SOFD = b"\xcd"
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SOFE = b"\xce"
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SOFF = b"\xcf"
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RST0 = b"\xd0"
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RST1 = b"\xd1"
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RST2 = b"\xd2"
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RST3 = b"\xd3"
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RST4 = b"\xd4"
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RST5 = b"\xd5"
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RST6 = b"\xd6"
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RST7 = b"\xd7"
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SOI = b"\xd8"
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EOI = b"\xd9"
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SOS = b"\xda"
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DQT = b"\xdb" # Define Quantization Table(s)
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DNL = b"\xdc"
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DRI = b"\xdd"
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DHP = b"\xde"
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EXP = b"\xdf"
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APP0 = b"\xe0"
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APP1 = b"\xe1"
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APP2 = b"\xe2"
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APP3 = b"\xe3"
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APP4 = b"\xe4"
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APP5 = b"\xe5"
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APP6 = b"\xe6"
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APP7 = b"\xe7"
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APP8 = b"\xe8"
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APP9 = b"\xe9"
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APPA = b"\xea"
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APPB = b"\xeb"
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APPC = b"\xec"
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APPD = b"\xed"
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APPE = b"\xee"
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APPF = b"\xef"
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STANDALONE_MARKERS = (TEM, SOI, EOI, RST0, RST1, RST2, RST3, RST4, RST5, RST6, RST7)
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SOF_MARKER_CODES = (
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SOF0,
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SOF1,
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SOF2,
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SOF3,
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SOF5,
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SOF6,
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SOF7,
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SOF9,
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SOFA,
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SOFB,
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SOFD,
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SOFE,
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SOFF,
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)
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marker_names = {
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b"\x00": "UNKNOWN",
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b"\xc0": "SOF0",
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b"\xc2": "SOF2",
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b"\xc4": "DHT",
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b"\xda": "SOS", # start of scan
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b"\xd8": "SOI", # start of image
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b"\xd9": "EOI", # end of image
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b"\xdb": "DQT",
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b"\xe0": "APP0",
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b"\xe1": "APP1",
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b"\xe2": "APP2",
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b"\xed": "APP13",
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b"\xee": "APP14",
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}
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@classmethod
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def is_standalone(cls, marker_code):
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return marker_code in cls.STANDALONE_MARKERS
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class MIME_TYPE:
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"""Image content types."""
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BMP = "image/bmp"
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GIF = "image/gif"
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JPEG = "image/jpeg"
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PNG = "image/png"
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TIFF = "image/tiff"
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class PNG_CHUNK_TYPE:
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"""PNG chunk type names."""
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IHDR = "IHDR"
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pHYs = "pHYs"
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IEND = "IEND"
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class TIFF_FLD_TYPE:
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"""Tag codes for TIFF Image File Directory (IFD) entries."""
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BYTE = 1
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ASCII = 2
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SHORT = 3
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LONG = 4
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RATIONAL = 5
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field_type_names = {
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1: "BYTE",
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2: "ASCII char",
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3: "SHORT",
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4: "LONG",
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5: "RATIONAL",
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}
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TIFF_FLD = TIFF_FLD_TYPE
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class TIFF_TAG:
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"""Tag codes for TIFF Image File Directory (IFD) entries."""
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IMAGE_WIDTH = 0x0100
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IMAGE_LENGTH = 0x0101
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X_RESOLUTION = 0x011A
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Y_RESOLUTION = 0x011B
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RESOLUTION_UNIT = 0x0128
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tag_names = {
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0x00FE: "NewSubfileType",
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0x0100: "ImageWidth",
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0x0101: "ImageLength",
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0x0102: "BitsPerSample",
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0x0103: "Compression",
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0x0106: "PhotometricInterpretation",
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0x010E: "ImageDescription",
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0x010F: "Make",
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0x0110: "Model",
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0x0111: "StripOffsets",
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0x0112: "Orientation",
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0x0115: "SamplesPerPixel",
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0x0117: "StripByteCounts",
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0x011A: "XResolution",
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0x011B: "YResolution",
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0x011C: "PlanarConfiguration",
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0x0128: "ResolutionUnit",
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0x0131: "Software",
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0x0132: "DateTime",
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0x0213: "YCbCrPositioning",
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0x8769: "ExifTag",
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0x8825: "GPS IFD",
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0xC4A5: "PrintImageMatching",
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}
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