mirror of
https://github.com/Droid-Deck/DroidDeck.git
synced 2026-11-11 19:11:08 +00:00
Kurt Himebauch
e3246b7dd5
* perf: download hand tracking models and native libs on first use * feat: build and publish add-on packs in CI, add Xbox and Comet packs * feat: ship proot and DirectAudio drivers as CI-built packs * test: hand tracking readiness requires the tracking pack * ci: attach PR test-build packs to the PR release instead of Components
70 lines
3.5 KiB
Python
70 lines
3.5 KiB
Python
"""Build the pinned lite-palm/lite-landmark MediaPipe bundle (mediapipe==0.10.21)."""
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import argparse
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import hashlib
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import io
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from pathlib import Path
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import zipfile
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FULL_SHA = 'fbc2a30080c3c557093b5ddfc334698132eb341044ccee322ccf8bcf3607cde1'
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LITE_SHA = 'd7fde8ac11f8ce03f8663775bfc323f4fc9f2a38062b4f4efa142874ef5b2a48'
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PALM_SHA = 'e9a4aaddf90dda56a87235303cf00e4c2d3fb28725f68fd88772997dac905c18'
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def write_entry(archive, name, data):
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entry = zipfile.ZipInfo(name, (1980, 1, 1, 0, 0, 0))
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entry.create_system = 3
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entry.external_attr = 0o100644 << 16
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archive.writestr(entry, data)
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def canonicalize_associated_files(data):
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with zipfile.ZipFile(io.BytesIO(data)) as archive:
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entries = archive.infolist()
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if not entries:
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return data
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prefix = data[:min(entry.header_offset for entry in entries)]
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files = {entry.filename: archive.read(entry) for entry in entries}
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output = io.BytesIO(prefix)
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with zipfile.ZipFile(output, 'a', compression=zipfile.ZIP_STORED) as archive:
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for name in sorted(files):
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write_entry(archive, name, files[name])
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return output.getvalue()
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def build(full, lite, palm, output):
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import mediapipe
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from mediapipe.tasks.python.metadata import metadata
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from mediapipe.tasks.metadata import schema_py_generated as schema
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if mediapipe.__version__ != '0.10.21':
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raise ValueError('Use mediapipe==0.10.21 for reproducible metadata')
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for path, expected in [(full, FULL_SHA), (lite, LITE_SHA), (palm, PALM_SHA)]:
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if hashlib.sha256(path.read_bytes()).hexdigest() != expected:
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raise ValueError(f'Model source checksum mismatch: {path}')
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with zipfile.ZipFile(full) as task:
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references = {name: task.read(name) for name in ['hand_detector.tflite', 'hand_landmarks_detector.tflite']}
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def contract(data):
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graph = schema.Model.GetRootAsModel(data, 0).Subgraphs(0)
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return [[(graph.Tensors(int(i)).Name(), graph.Tensors(int(i)).ShapeAsNumpy().tolist(), graph.Tensors(int(i)).Type())
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for i in indices] for indices in (graph.InputsAsNumpy(), graph.OutputsAsNumpy())]
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models = {}
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for name, path in [('hand_detector.tflite', palm), ('hand_landmarks_detector.tflite', lite)]:
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data = path.read_bytes()
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reference = references[name]
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if contract(data) != contract(reference):
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raise ValueError(f'Lite tensor contract differs: {name}')
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populator = metadata.MetadataPopulator.with_model_buffer(data)
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populator.load_metadata_and_associated_files(reference)
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populator.populate()
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models[name] = canonicalize_associated_files(populator.get_model_buffer())
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output.parent.mkdir(parents=True, exist_ok=True)
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with zipfile.ZipFile(output, 'w', compression=zipfile.ZIP_STORED) as task:
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for name, data in models.items():
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write_entry(task, name, data)
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print(hashlib.sha256(output.read_bytes()).hexdigest())
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--full', type=Path, required=True)
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parser.add_argument('--lite', type=Path, required=True, help='Pinned hand_landmark_lite.tflite from storage.googleapis.com/mediapipe-assets/')
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parser.add_argument('--palm', type=Path, required=True, help='Pinned palm_detection_lite.tflite from storage.googleapis.com/mediapipe-assets/')
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parser.add_argument('--output', type=Path, required=True)
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args = parser.parse_args()
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build(args.full, args.lite, args.palm, args.output)
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