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Finish loudness_info to return dict

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This commit is contained in:
RealStickman 2022-10-03 21:39:19 +02:00
parent efbaa72afb
commit c483092b78
1 changed files with 18 additions and 3 deletions
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21
music-normalize/main.py
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@ -62,7 +62,7 @@ def get_format(inputfile):
return format return format
def loudness_info(inputfile): def loudness_info(inputfile) -> dict[str, str]:
# get format from file # get format from file
# inputformat = get_format(inputfile) # inputformat = get_format(inputfile)
# NOTE format is actually unnecessary here # NOTE format is actually unnecessary here
@ -72,7 +72,22 @@ def loudness_info(inputfile):
global_options=("-y"), global_options=("-y"),
) )
print(ff.cmd) # print(ff.cmd)
proc = subprocess.Popen(
ff.cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE
)
# NOTE get loudness info from subprocess
# rstrip: remove trailing newline
# decode: convert from binary string to utf8
# splitlines: list of lines (only 12 last ones, length of the output json)
# join: reassembles the list of lines and separates with "\n"
loudness_json: str = "\n".join(
proc.stdout.read().rstrip().decode("utf8").splitlines()[-12:]
)
# decode json to dict
loudness: dict[str, str] = json.loads(loudness_json)
# print(loudness_json)
return loudness
def convert(): def convert():
@ -81,4 +96,4 @@ def convert():
if __name__ == "__main__": if __name__ == "__main__":
loudness_info(inputfile) loudness = loudness_info(inputfile=inputfile)