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sounddescs_download_audios.py
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sounddescs_download_audios.py
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import argparse
import logging
import multiprocessing as mp
import os
import zipfile
from datetime import datetime
from pathlib import Path
from zipfile import BadZipFile
import tqdm
import wget
from zsvision.zs_multiproc import starmap_with_kwargs
def download_audio(download_folder: Path,
main_link: str,
entry: str):
"""
Downloading one audio file.
Inputs:
download_folder: Location where audio file is downloaded
main_link: Address from where audio content is downloaded
entry: Full link address for the specific audio file being downloaded
"""
audio_id = entry.split(f"{main_link}/")[1].split(".wav.zip")[0].lower()
print(f'Downloading file {audio_id}.wav')
(download_folder / 'zip_audios' / audio_id).mkdir(parents=True, exist_ok=True)
try:
wget.download(entry, str(download_folder / 'zip_audios' / audio_id))
print(f'Successfully downloaded file {audio_id}.wav')
except Exception as e:
print(f'File {audio_id} could not be downloaded because of error {e}')
with open(Path('error_files') / f'{audio_id}.txt') as f:
f.write('\n')
def download_audios(download_folder: Path, main_link: str,
logging, download_file, processes: int,
limit: int = 0):
"""
Downloading all audio files from given list of links.
Inputs:
download_folder: Location where audio file is downloaded
main_link: Address from where audio content is downloaded
logging: Logging module containing information about the
progress of the code
download_file: Path of txt file containing links for audio files
processes: Number of processes downloading audio content at
the same time
limit: If not 0, downloading only the first \{limit\} adio
files from the list
"""
logging.info(f'Creating folder {download_folder}/zip_audios')
(download_folder / 'zip_audios').mkdir(parents=True, exist_ok=True)
(Path('error_files')).mkdir(parents=True, exist_ok=True)
with open(Path('sounddescs_data') / download_file, 'r') as f:
entries = f.read().splitlines()
if limit != 0:
entries = entries[:limit]
kwarg_list = []
for entry in tqdm.tqdm(entries):
kwarg_list.append({
"download_folder": download_folder,
"main_link": main_link,
"entry": entry,
})
pool_func = download_audio
if processes > 1:
# The definition of the pool func must precede the creation of the pool
# to ensure its pickleable. We force the definition to occur by reassigning
# the function.
with mp.Pool(processes=processes) as pool:
starmap_with_kwargs(pool=pool, func=pool_func, kwargs_iter=kwarg_list)
else:
for idx, kwarg in enumerate(kwarg_list):
print(f"{idx}/{len(kwarg_list)} processing kwargs ")
pool_func(**kwarg)
def unzip_one_file(download_folder: Path, audio_id: str, zip_audios: Path):
"""
Unzipping one zip file from 'zip_audios' and moving it to the 'audios' folder.
Inputs:
download_folder: Location where audio file is downloaded
audio_id: Name of the audio file being extracted
zip_audios: Location where the zip files are found
"""
audio_zip = os.listdir(zip_audios / audio_id)[0]
if os.path.exists(download_folder / "audios" / audio_id) is False:
try:
with zipfile.ZipFile(zip_audios / audio_id / audio_zip, 'r') as zip_ref:
print(f"Extracting audio file {audio_id}")
zip_ref.extractall(download_folder / "audios" / audio_id)
audio_file = os.listdir(download_folder / "audios" / audio_id)[0]
os.rename(download_folder / "audios" / audio_id / audio_file,
download_folder / "audios" / audio_id / audio_file.lower())
except BadZipFile:
print(f"File {audio_id} could not be unzipped because of error BadZipFile")
with open(Path("zip_error_files") / f"{audio_id}.txt") as f:
f.write('\n')
else:
print(f"Audio file {audio_id} already extracted")
def unzip_files(download_folder: Path, processes: int, logging):
"""
Unzipping all zip files and moving them to the audios folder.
Inputs:
download_folder: Location where audio file is downloaded
logging: Logging module containing information about the
progress of the code
"""
zip_audios = download_folder / 'zip_audios'
existent_audio_ids = os.listdir(zip_audios)
(download_folder / "audios").mkdir(parents=True, exist_ok=True)
(Path('zip_error_files')).mkdir(parents=True, exist_ok=True)
kwarg_list = []
for audio_id in tqdm.tqdm(existent_audio_ids):
kwarg_list.append({
"download_folder": download_folder,
"audio_id": audio_id,
"zip_audios": zip_audios,
})
logging.info("Starting unzipping files")
pool_func = unzip_one_file
if processes > 1:
# The definition of the pool func must precede the creation of the pool
# to ensure its pickleable. We force the definition to occur by reassigning
# the function.
with mp.Pool(processes=processes) as pool:
starmap_with_kwargs(pool=pool, func=pool_func, kwargs_iter=kwarg_list)
else:
for idx, kwarg in enumerate(kwarg_list):
print(f"{idx}/{len(kwarg_list)} processing kwargs ")
pool_func(**kwarg)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--download_folder", type=Path,
required=True)
parser.add_argument("--download_file", type=str,
default="download_links.txt")
parser.add_argument("--action", type=str, default='download',
choices=['download', 'unzipping'])
parser.add_argument("--limit", type=int, default=0)
parser.add_argument("--processes", type=int, default=1)
parser.add_argument("--main_link", type=str,
default="https://sound-effects-media.bbcrewind.co.uk/zip")
args = parser.parse_args()
os.makedirs('logs', exist_ok=True)
logging.basicConfig(filename=f"logs/{datetime.now().strftime(r'%m%d_%H%M%S')}.log",
level=logging.INFO)
logging.getLogger().addHandler(logging.StreamHandler())
if args.action == 'download':
download_audios(args.download_folder, args.main_link,
logging, args.download_file, args.processes,
args.limit)
else:
unzip_files(args.download_folder, args.processes, logging)
if __name__ == "__main__":
main()