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authorS. Solomon Darnell2025-03-28 21:52:21 -0500
committerS. Solomon Darnell2025-03-28 21:52:21 -0500
commit4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
treeee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-master.tar.gz
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Diffstat (limited to '.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py')
-rw-r--r--.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py78
1 files changed, 78 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py b/.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py
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+++ b/.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py
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+# type: ignore
+from typing import AsyncGenerator
+
+from core.base.parsers.base_parser import AsyncParser
+from core.base.providers import (
+ CompletionProvider,
+ DatabaseProvider,
+ IngestionConfig,
+)
+
+
+class BMPParser(AsyncParser[str | bytes]):
+ """A parser for BMP image data."""
+
+ def __init__(
+ self,
+ config: IngestionConfig,
+ database_provider: DatabaseProvider,
+ llm_provider: CompletionProvider,
+ ):
+ self.database_provider = database_provider
+ self.llm_provider = llm_provider
+ self.config = config
+
+ import struct
+
+ self.struct = struct
+
+ async def extract_bmp_metadata(self, data: bytes) -> dict:
+ """Extract metadata from BMP file header."""
+ try:
+ # BMP header format
+ header_format = "<2sIHHI"
+ header_size = self.struct.calcsize(header_format)
+
+ # Unpack header data
+ (
+ signature,
+ file_size,
+ reserved,
+ reserved2,
+ data_offset,
+ ) = self.struct.unpack(header_format, data[:header_size])
+
+ # DIB header
+ dib_format = "<IiiHHIIiiII"
+ dib_size = self.struct.calcsize(dib_format)
+ dib_data = self.struct.unpack(dib_format, data[14 : 14 + dib_size])
+
+ width = dib_data[1]
+ height = abs(dib_data[2]) # Height can be negative
+ bits_per_pixel = dib_data[4]
+ compression = dib_data[5]
+
+ return {
+ "width": width,
+ "height": height,
+ "bits_per_pixel": bits_per_pixel,
+ "file_size": file_size,
+ "compression": compression,
+ }
+ except Exception as e:
+ return {"error": f"Failed to parse BMP header: {str(e)}"}
+
+ async def ingest(
+ self, data: str | bytes, **kwargs
+ ) -> AsyncGenerator[str, None]:
+ """Ingest BMP data and yield metadata description."""
+ if isinstance(data, str):
+ # Convert base64 string to bytes if needed
+ import base64
+
+ data = base64.b64decode(data)
+
+ metadata = await self.extract_bmp_metadata(data)
+
+ # Generate description of the BMP file
+ yield f"BMP image with dimensions {metadata.get('width', 'unknown')}x{metadata.get('height', 'unknown')} pixels, {metadata.get('bits_per_pixel', 'unknown')} bits per pixel, file size: {metadata.get('file_size', 'unknown')} bytes"