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author | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
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committer | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
commit | 4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch) | |
tree | ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py | |
parent | cc961e04ba734dd72309fb548a2f97d67d578813 (diff) | |
download | gn-ai-master.tar.gz |
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.py | 78 |
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 new file mode 100644 index 00000000..78646da7 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/core/parsers/media/bmp_parser.py @@ -0,0 +1,78 @@ +# 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" |