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#!/usr/bin/env python3
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
"""
Helper script to pre-compute embeddings for a flashlight (previously called wav2letter++) dataset
"""
import argparse
import os
def main():
parser = argparse.ArgumentParser()
parser.add_argument("tsv")
parser.add_argument("--output-dir", required=True)
parser.add_argument("--output-name", required=True)
args = parser.parse_args()
os.makedirs(args.output_dir, exist_ok=True)
transcriptions = {}
with open(args.tsv, "r") as tsv, open(
os.path.join(args.output_dir, args.output_name + ".ltr"), "w"
) as ltr_out, open(
os.path.join(args.output_dir, args.output_name + ".wrd"), "w"
) as wrd_out:
root = next(tsv).strip()
for line in tsv:
line = line.strip()
dir = os.path.dirname(line)
if dir not in transcriptions:
parts = dir.split(os.path.sep)
trans_path = f"{parts[-2]}-{parts[-1]}.trans.txt"
path = os.path.join(root, dir, trans_path)
assert os.path.exists(path)
texts = {}
with open(path, "r") as trans_f:
for tline in trans_f:
items = tline.strip().split()
texts[items[0]] = " ".join(items[1:])
transcriptions[dir] = texts
part = os.path.basename(line).split(".")[0]
assert part in transcriptions[dir]
print(transcriptions[dir][part], file=wrd_out)
print(
" ".join(list(transcriptions[dir][part].replace(" ", "|"))) + " |",
file=ltr_out,
)
if __name__ == "__main__":
main()
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