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32 lines
951 B
Python
32 lines
951 B
Python
from typing import AsyncGenerator
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async def glb_sequence_to_glbs(glb_sequence: AsyncGenerator[bytes, None]) -> AsyncGenerator[bytes, None]:
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"""Converts a sequence of GLB files into a single GLBS file.
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This is a streaming response in the custom GLBS format which consists of the "GLBS" magic text followed by
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a sequence of GLB files, each with a 4-byte little-endian length prefix."""
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# Write the magic text
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yield b'GLBS'
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# Write the GLB files
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async for glb in glb_sequence:
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# Write the length prefix
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yield len(glb).to_bytes(4, 'little')
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# Write the GLB file
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yield glb
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if __name__ == '__main__':
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import asyncio
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async def test_glb_sequence_to_glbs():
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async def glb_sequence():
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yield b'glb00001'
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yield b'glb2'
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async for chunk in glb_sequence_to_glbs(glb_sequence()):
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print(chunk)
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asyncio.run(test_glb_sequence_to_glbs()) |